' ' - ATTACHMENT 2 | | CRANE DESIGN EVALUATION FOR CRYSTAL RIVER UNIT 3 ' COMPARISON TO NUREG-0612 Submitted to: , FLORIDA POWER CORPORATION 3201 Thirty Fourth Street South St. Petersburg, FL 33733 January 1982 TERA CORPORATON S 7101 Wisconsin Avenue Bethesda, Maryland 20014 (30I) 654-8960 Berkeley, California Dollas, Texas Bethesda, Maryland Washington, D.C. New York, New York Del Mar. Calif ornia Boton Rouge, Louisimo Denver, Colorado 8206210538 820615 h Antmio, Texas $DRADOCK 05000302 L s Angeles, California Pnp - - _ .
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' ' - ATTACHMENT 2
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CRANE DESIGN EVALUATION
FOR CRYSTAL RIVER UNIT 3
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COMPARISON TO NUREG-0612
Submitted to:,
FLORIDA POWER CORPORATION3201 Thirty Fourth Street SouthSt. Petersburg, FL 33733
January 1982
TERA CORPORATON
S 7101 Wisconsin AvenueBethesda, Maryland 20014(30I) 654-8960
Berkeley, CaliforniaDollas, TexasBethesda, MarylandWashington, D.C.New York, New YorkDel Mar. Calif orniaBoton Rouge, LouisimoDenver, Colorado
8206210538 820615 h Antmio, Texas$DRADOCK 05000302 L s Angeles, California
Pnp
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TAIM_E OF CONTENTS/
SECTION PAGE
i1.0 Introduction . . |-|. . ..................
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| l.1 Background 1-1. ..................'
l.2 Basis for Review 1-2...... ..........
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l.3 Deviations 1-3. . ..................
1.4 Recommended Actions . . . . . . . . . . . . . . . 1-6
i 2.0 NRC Submi t tal . . . . . . . . . . . . . . . . . . . . . 2-1
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APPENDICES
Appendix A - Crone Evoluotions
i Appendix B - Supplemental Calculations
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1.0 COPOUCT OF EVALUATION,
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1.1 Background
in August 1980, the NRC issued NUREG-0612, " Control of Heavy Loads atNuclear Power Plants--Resolution of Generic Task A-36." By letter of
December 22,1980, the NRC requested licensees to evaluate load handlingoperations at their plants against the criteria in NUREG-0612, to identify areas
of nonconformance, and to describe octions that would be taken to satisfy thecriteria of NUREG-0612. This letter required that the evoluotions be providedin two reports; the first report addressing compliance with general criteria such
as definition of safe load paths, development of load handling procedures,procedures pertaining to the inspection and maintenance of crones, craneoperator training and qualification, and the evaluation of crane and handlingdevice design against criteria in general industry standards. The second report is
to address the potential safety consequences of load handling c.ccidents andpreventive or mitigative features that would be implemented so that conse-quences would be within defined safety criteria.
One of the elements of the first report is to be on evoluotion of the crane designagainst the criterio in CMAA 70-1975, " Specifications for Electric Overhead
Traveling Cranes," and the criteria in ANSI B30.2-1976, " Overhead and Gontry
Cranes." These crane evoluotions were to be performed for those handlingsystems that were identified as being of potential safety concern; that is, o load
drop from one of these crones potentially could impact irradiated fuel, thereactor vessel, the spent fuel pool, or equipment required for safe shutdown or
decay heat removal. The criteria in these standards include guidelines repre-senting good engineering practice that in most cases all crane manufacturershave followed for many years; however, the standards also include severalspsecific design parameters in order to assure adequate safety margins.
For the Crystal River Unit 3 plant, it was determined that the handling systems
of potential safety concern are the containment polar crane and the refueling
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building crane. At the request of Florida Power Corporation, TERA has,
performed a comparison of the design of these two crenes against the criteria in
CMAA 70 and ANSI B30.2. This report describes that evaluation, identifies creasof nonconformance with these two standards, provides on evaluation of thesignificance of these nonconformances, and describes recommended actions inorder to satisfy the intent of these two standards.
1.2 Basis for Review
in order to evoluote the containment polar crane and the refueling buildingcrane, various documentation was obtained which described the design of these
two cranes. The information obtained included: original procurement specifi-cations by Gilbert Associates which specify the criteria that these two craneswere to satisfy; the Whiting crane operation and maintenance manuals which
included dato sheets of various vendor supplied components and also included
certain ossembly level drawings; and additional drawings obtained from WhitingCorporation which provided details on the fabrication and materials of variouscrane structural components. A summary of the references used in this
evaluation is included in Appendix A of this report.
The original procurement specification on this crone required that the crane be
designed and fabricated in accordance with EOCl 61-1961, " Specifications for
Electric Overhead Traveling Cranes." EOCl 61 was subsequently replaced byCMAA 70-1970; and CMAA 70-1970 was subsequently revised and reissued as
CMAA 70-1975. Due to the interrelationship of these standards, many of thecriteria in EOCl 61 are the same or very similar to those contained inCMAA 70-1975. Accordingly, the first step in this review was to perform apoint-by-point comparison between the criteria in EOCl 61 and CMAA 70-1975,and then to include any additional criteria which may be contained in ANSIB30.2, Chapter 2-1. Where the criterio in EOCl 61 and the current standards are
the some, it was deemed unnecessary to perform a detailed evaluation againstthe criterio in CMAA 70-1975 and ANSI B30.2-1976. The next step in the review
required a detailed evaluation of the compliance of the containment polar crone
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and the refueling building crane to the criteria in CMAA 70-1975 and ANSI,
B30.2- 1976 which were different than or went beyond what as contained inEOCl 61. A similar approach was used by TERA and accepted by the NRC in theevaluation of the cranes at Indian Point Units 2 and 3. In addition, certain other
criteria in CMAA 70-1975 address items that may be important in defininginterfaces between purchaser and the supplier; however, they do not contribute
to load handling reliability or prevention of unsafe conditions. In the evaluation,such criteria were identified as not applicable to load handling reliability, and
compliance with these criteria was not evaluated. A summary of this point-by-point comparison is contained in Appendix A to this report.
In the performance of the evaluation of the containment polar crane and the
refueling building crane, several calculations had to be performed. For example,
in determining moments of inertia, design safety factors, maximum tensile and
compressive stresses, shear stresses, gear strength and durability, and holdingbrake torque safety margins, calculations were performed in accordance with
TERA quality assurance procedures, and have been included in Appendix B to thisreport.,
l.3 Deviations
The comparison of the crane designs to CMAA 70-1975 and ANSI B30.2-1976
identified several deviations from the criteria in these standards. Deviationsfrom these standards do not necesarily represent safety concerns; the signifi-conce of these deviations has been evaluated. The following summarize thedeviations that have been identified in this review and provide on assessment of
the significance of these deviations in terms of load handling reliability.
(a) Welding. CMAA 70 requires that welding be performed inaccordance with AWS Dl4.l; ANSI B30.2 requires thatwelding be performed in accordance with AWS Dl.1 andAWS Dl4.l. At the time of the fabrication of the CrystalRiver 3 containment polar crane and fuel handling build-ing crane, AWS Dl4.1 had not been issued. These twocranes were fabricated by Whiting Corporation using the
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AWS DI.I specifications current at the time of fabrico-/ tion. The criteria that eventually become incorporated
into AWS Dl4.! represent a more detailed identificationof those aspects of the standard structural welding code,AWS DI.1, that are applicable to the welding of industrialand mill cranes. We have clso learned from Whitingengineers that the Whiting shop practices used at the timeof the fabrication of the Crystal River cranes become thebasis for what was to become AWS Dl4.l. Additionally,the welders were qualified to AWS criteria, and all weldswere visually inspected. It is judged that although thesecranes were not welded specifically to AWS Dl4.1, theprocedures and practices that were used in their fabrica-tion are equivalent to the criteria contained in thecurrent AWS standards, and no corrective actions arerequired.
(b) Longitudinal Stiffeners. CMAA 70 provides specificcriterio for determining the minimum value of themoment of inertia for longitudinal stiffeners that arewelded in the compression region of girder web plates.This criterion is satisfied by the containment polar crane;however, the fuel handling building crane does not satisfythis criterion. Using the CMAA 70 formulo, o minimumvalue for the moment of inertia of the longitudinalstiffener should be lo = 1.715 in.4; however, the actualmoment of inertia of the stiffener is calculated to beIx = .676 in.4 This failure to satisfy the criteria inCMAA 70 represents a lower than normal margin to theprevention of buckling of the web plate. It is not possibleusing the CMAA 70 formula and guidelines to actuallydetermine what the safety margin is to prevention ofbuckling. It is recommended that further more detailedstress analyses be performed in order to evolvate thepotential for buckling and the adequacy of the design ofthe longitudinal stiffeners that are used. If these moredetailed evaluations show that a potential does exist forbuckling in the web plates, modifications may be requiredsuch as the installation of additional stiffeners in thecompression region of the web plates. It is not possible at,
this time to judge whether such modifications are octuallyrequired.
(c) Hoist Drum. The containment polar crane satisfiesCMAA 70 criteria for hoist drum groove depth and pitch;however, the fuel handling building crane only satisfiedthe criteria for drum groove pitch, but did not satisfy thecriteria for the rope groove depth. For the refuelingbuilding crane, CMAA 70 requires a minimum drumgroove depth of 0.516 in.; however, the actual dimensionof this groove is 0.500 in. This criterion is very nearly
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met; the deviation represents only a 3% variation fromthe CMAA recommendation. Since the CMAA guideline.,
of Section 4.4.3.1 is identified as a recommended item oscompared to many of the other guidelines in CMAA 70which are more rigidly stated as "shalls," it is not judgedthat this deviation is significant. .A smaller than recom-mended groove depth results in less surface support forthe hoisting rope and could potentially lead to increasedwear of the rope. However, in light of the small deviationfrom the recommended guideline and considering thecrone inspection program which is in place at CrystalRiver 3, it is judged that this minor variation will not leadto any appreciable rope degradiation or potential forfailure if the inspection program is properly carried out.The current inspection program calls for a monthlygeneral rope inspection and a detailed foot-by-footinspection and examination including dimensional checkson a quarterly basis.
(d) Trolley Bumpers. CMAA 70 requires that trolley bumpersbe installed on all trolleys in order to limit the decelero-tion of the trolley and the resulting lateral loads when thetrolley comes to the end of its travel. This standard alsoestablishes criteria on maximum deceleration rates forthe bumpers. EOCl 61 did not require the use of bumpers.Neither the Crystal River containment polar crane northe fuel handling building crane have been provided withtrolley bumpers. These crones do have wheel stops at theend of the trolley travel; however, such wheel stops willresult in iorger lateral dynamic loads when the trolleycomes to its limits of travel as compared to what wouldresult if bumpers were used. It appears that a number ofalternatives are available for resolving this deviation,such as:
(1) Performing analyses to determine what lateroldynamic loads would result from running the trolleyinto the wheel stops and evaluating the potentialeffects of such loads;
(2) Modifying both of these cranes to install bumpers onthe trolleys and to provide bumper stops on thegirders; or
(3) install travel limit switches on the girders to inter-rupt power to the trolley drive motor resulting inapplication of the trolley holding broke prior to thetrolley coming in contact with the trolley wheelstops.
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(e) Trolley Wheels. CMAA 70 provides criteria that specifymaximum wheel loods for various sizes of wheels anda
crone rails. The bridge and trolley wheel loads for thecontainment polar crone are well within the maximumestablished in CMAA 70. The refueling building cranebridge wheel loads satisfy the criteria in CMAA 70;however, the trolley wheel loads do not quite satisfy thecriteria in the standard. For the size wheels and cronerail for the refueling building trolley, the recommendedmaximum load for the trolley wheels is 86,400 lbs.; themaximum wheel load when handling the rated load isactually 87,500 lbs. This represents a variation of onlyIk% from the CMAA 70 recommendation. -This minorvariation is not considered significant. It should also benoted that the guidelines in CMAA 70, Table 4.11.3, arereferred to os a guide and are not firm specifications, ascompared to most of the other guidelines in CMAA 70which are referred to as "shalls." No corrective actionsare recommended for this item.
l.4 Recommended Actions
As a result of the crane design evaluations that have been performed and theassessment of the significance of deviations, TERA recommends that Florida
Power Corporation take certain actions in order to satisfy the intent of thesestandards. The following summarizes the recommended actions that have been
discussed in this report:
(1) Perform further evaluations to investigate the potentialfor buckling of the refueling building crane web plates osdiscussed in item b of Section 1.3 of this report.
(2) Consider modification of the crane trolleys to eitherinclude bumpers or travel limit switches for both cranesas described in item (e) of Section 1.3 of this report. (Analternative to these modifications would be to performdetailed evaluations to determine the lateral dynamicloads that would result from the trolleys impacting thewheel stops and to evaluate the effect of these lateraldynamic loads on load handling reliability; however, suchevaluations could very well result in a determination thatbumpers or limit switches should be installed).
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With the exception of the two items identified above, TERA's evaluation has,
determined that the Crystal River 3 containment polar crane and refuelingbuilding crane either fully satisfy or at least meet the intent of the criterio inCMAA 70-|975 and ANSI B30.2-|976, Chapter 2-1.
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2.0 tilC SUBMITTAL,
The NRC letter of December 20,1980 requested that verification be providedthat the crane design complies with the guidelines of CMAA 70 and Chapter 2-1
of ANSI B30.2. In previous evaluations that TERA bas performed, the NRC has
requested supplemental information to address certain items, particularly wherethe crane was designed to EOCl 61. This section includes o draft submittal to
the NRC that includes for the Crystal River cranes the information which, fromour experience, the NRC will be looking for in their review. This section isorganized so that the remainder of the section may be removed and ottoched to
a letter from Florida Power Corporation to the NRC.
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ITEM 3.f: Verification that crane design complies with the guidelines of CMAASpecificatien 70 and Chapter 2-1 of ANSI B30.2-1976, including the demonstra-<
tion of equivalency of actual design requirements for instances where specificcompliance with these standards is not provided.
The Crystal River Polar Crane and Refueling Building Crane were built prior to
the issuance of ANSI B30.2-1976 and CMAA 70-1975. These cranes weredesigned and fabricated by Whiting Corporation in accordance with EOCl-61," Specifications for Electric Overhead Traveling Cranes-1961," and additionalcriteria contained in Gilbert Associates Specification RO-2690, September 1968.These specifications addressed certain, but not all, of the criteria in ANSI B30.2-
1976 and CMAA 70-1975. Accordingly, additional drawings and design details
were obtained from Whiting Corporation and Florida Power Corporation, and a
detailed point-by-point comparison performed of the Crystal River Polar Craneand Refueling Building Crane design with the criteria in ANSI B30.2-1976 and
CMAA 70-1975. This comparison considered only those components that are load
bearing or are necessary to prevent conditions that could lead to a load drop.The components 7sidered are those listed in Table 3.f-l. In performing thiscomparison it as necessary to calculate stress levels in various components,
moments of inertia, gear ratings (strength and durability), dimensional propor-tions, factors of safety, and other mechnanical characteristics in order to verify
compliance with ANSI B30.2-1976 and CMAA 70-1975. The following summa-rizes our findings for those areas where EOCI-61 criteria are different from
those in CMAA 70-1975 or ANSI B30.2-1976 for the Refueling Building Crane andthe Containment Polar Crane:
1. Refueling Building Crane
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a. Welding - CMAA 70-1975 and ANSI B30.2-1976 require that welding
be performed in accordance with the latest edition of AWS D.I.1," Structural Welding Code" and AWS Dl4.1, " Specifications for Weld-ing :ndustrial and Mill Cranes." These current standards are more
recent and were nct available at the time of the fabrication of theCrystal River Refueling Building Crane; however, the welding pro-edures used for the Crystal River Refueling Building Crane are
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judged to be equivalent to the welding criteria in ANSI B30.2-1976.
and CMAA 70-1975 based on the following:
(I) Welding was performed in accordance with theversion of AWS DI.! " Structural Welding Code" thatwas current at that time;
(2) AWS Dl4.1 " Specification for Welding industrial andMill Cranes" was not issued at that time; however,the Whiting practices and procedures used for thewelding were equivalent to what was later issued asAWS Dl4.l;
(3) The welders were qualified to AWS criteria; and
(4) All welds were visually inspected.
b. Impact Allowance - CMAA 70-1975 requires use of e impact allow-ance of Y2% of the load per foot per minute of hoisting speed, but not
less than 15% of the rated capacity. EOCl-61 only specified use of15% for the impact allowance. For the Crystal River RefuelingBuilding Crane (hoist speeds of 5.3 and 23 fpm for the main andauxiliary hoists respectively), the CMAA 70 specification is still met.
c. Lateral Forces - EOCl-61 is more conservative than CMAA 70-1975for consideration of lateral loads due to acceleration or deceleration;
therefore CMAA 70 is satisfied.
d. Torsional Forces - CMAA 70 specifies that twisting moments bedetermined based on the horizontal distance between the center ofgravity and the shear center of the girder section. EOCl-61 requirestwisting moments to be based on the distance between the load
center of gravity and the beam center of gravity. Since the CrystalRiver Refueling Building Crane girders are symmetrical box sections,
I these two requirements are the same. Since the trolley rails are,
located over the centerline of the girders, there are no appreciabletorsional forces on the girders.
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Box Girder Proportions - CMAA 70 specifies that 1/h (i = girder,- e.
spon; h = web height) should be less than 25; EOCl-61 hos no limit on
I/h. For the Crystal River Refueling Building Crane, I/h = 552 in./75 in. = 7.4. Therefore, CMAA 70 is satisfied.
In addition, CMAA 70 specifies that h/t be less than
17.6C(K+ 1) and less than M, where:IC
t = web thickness = 5/16 in.
C = (162 Crystal River Refueling Building Crone has one longitudinalstiffener)
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K = f /fc = 1.0t
f = max. tensile stress = 16.0 ksitfc = max. compressive stress = 16.0 ksi
M = 376
Therefore according to CMAA 70, h/t should be less than 339.5 andless than 376. h/t = 75/(5/16) = 240. Therefore, CMAA 70 issatisfied.
f. Longitudinal Stiffeners - CMAA 70 specifies a minimum moment of
inertio for longitudinal stiffeners, maximum width to thickness ratio,
and stiffener location along the web plate. EOCl does not providesimilar guidance. For the Crystal River Refueling Building Crane,the moment of inertio should be greater than lo = 1.715- in.4, thewidth to thickness ratio should be less than 38, and the stiffener
should be located 0.4 of the distance from the compression plate to
the web neutral oxis. The actual moment of inertio is .676- in.4, thestiffener width to thickness ratio is 26, and the stiffener centerline is
located 0.47 of the distance from the compression plate to the web
neutral oxis. The moment of inertia criterion is not satisfied for thiscrane. We are performing a more detailed analysis to determine the
potential for buckling of the web, even though the CMAA criteria arenot satisfied.
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g. Basic Allowable Stresses - EOCl-61 is more conservative than,
CMAA 70 for allowable tension, compression, and shear stresses, ifb/c is less than 38 (b is distance between web plates and c is thethickness of the cover plate). For the Crystal River Refueling 4Building Crane, b/c is 10.25 in./l.0 in. = 10.25. Therefore, CMAA 70is satisfied.
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CMAA 70 also specifies on allowable stress range for crane structural .
members that are subject to cyclic loading of greater than 20,000 '/over the life of the crane. The number of cycles for any of the crane
members will be less than 2,000 over the life of the Crystal River
Refueling Building Crane. Based on this, failure due to cyclic fatigue
should not be of concern for this crane.
h. Transverse Stiffeners - CMAA 70 specifies a minimum moment of
inertio for transverse stiffeners about their interface with the webplate; this is not addressed in EOCl 61. For the Crystol- River
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Refueling Building Crane, this criterion is not applicable os full depthdiaphragms are used,
i. Bridge End Trucks and Trolley Frames - CMAA 70 specifies maxi-mum tension (14.4 ksi), compression (14.4 ksi), and shear (10.8 ksi)
stresses in bridge end trucks and trolley frames; while EOCl does notspecify allowable vertical stresses for these members. CMAA 70 also
specifies maximum drop height (l in. max.) in case of oxle failure in
the bridge truck or trolley. For the Crystal River Refueling BuildingCrane, the maximum stresses with the rated load are 4.0 ksi. for
tension and compression and 9.7 ksi shear for the trolley frame, and
Il.5 ksi tension and compression and 5.6 ksi shear for the bridge and
end trucks. The maximum drop would be less than I in, for a bridgetruck or trolley oxie failure. Therefore the crc,e satisfies CMAA 70.
j. Hoisting Ropes - CMAA 70 specifies a 5:1 hoisting rope safetyfactor for the rated load plus bottom block divided by the number of
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,x /parts of rope. For the Crystal River Refueling Building Crane main,
hoist:
bottom block = 12,000 lbs.
rated load = 240,000 lbs.
ports of rope = 16 (1-3/8" each)
rope published breaking strength = 155,400 lbs.
resulting safety factor = 9.8:1
For the aux. hoist:
block = 3,000 lbs.
lood = 30,000 lbs.
ports of rope = 12 (9/16" each)
rope published breaking strength = 27,000 lbs.
resulting safety factor = 9.8:1'
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Therefore the rope satisfies the criteria in CMAA 70.
k. Hoist Drum - CMAA 70 specifies that drum design should consider
combined crushing and bending loads; however, EOCl 61 is not as
; specific. The Gilbert Associates procurement specification for this
crane required the design to consider combined crushing and bending
loads. Therefore CMAA 70 is satisfied.
CMAA 70 also specifies minimum drum groove depth and drumgroove pitch; EOCl 61 does not provide such specific guidance. For
the Crystal River Refueling Building Crane, this guidance wouldrequire minimum drum groove depth and pitch of 0.516 in. and1.50 in. respectively for the main hoi::t, and 0.21 in. and 0.64 in. for
the aux.'.ndpt. The actual dimensions are 0.500 in. and 1.50 in. for
the nain hoist and 0.375 in. and 0.688 in. for the aux. hoist. Thus,the criteria are sStisfied with the exception of the main hoist groovedepth (0.500 in..vs. a minimum of C.516 in.). This deviation is notconsidered sigrrificant for the following reasons:
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| (1) The criterion is very nearly met; the deviation!- represents only a 3% variance from the CMAA*
| recommendation.i
(2) The CMAA guideline of Section 4.4.3.1 is identifiedas a " recommended" item, os compared to most ofthe other guidelines in CMAA 70 which are morerigidly stated as "shalls."
(3) Any wear in the rope that might result will bedetected during periodic rope inspections. Proce-dures have recently revised to require o thoroughrope inspection every quarter; and the rope is to bereploced if kinking, crushing or birdcaging ise
'detected, if a specified number of broken wires arenoted, if specified reductions in nominal diameterare noted, if broken wires are noted at sockets, or ifo., ,Je individuel wires have a reduction of 1/3from the original diameter.
Based on the above, the drum groove depth and pitch for therefueling building crane main and auxiliary hoists are judged to beadequate.
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I. Georing - CMAA 70 provides specific criteria for establishing allow-able strength horsepower and allowable durability horsepower forhoist georing, and also specifies a factor for estimating the octual
horsepower imposed on the gearing. For the Crystal River RefuelingBuilding Crane, the following values apply:
Main Hoist Aux. Hoist
N 1,200 rpm 1,200 rp:np
F 4 in. 4 in.J 0.44 (motor pinion) 0.45
Sat 36,000 psi 36,000 psi.
K 2.0 2.0m
Pd 4.0 in. 5.0 in.d .i.0 in. 3.0 in.Ky 0.84 0.84
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Main Holst Aux. Hoist.
1 0.69 0.67.
Cy 0.72 0.72
Cm 1.35 1.35
Cc 0.4 0.4
Soc 85,000 psi 85,000 psi
Ch I.0 1.0
C 2300 2300p
Applied horsepower factor - 75%
These result in the following gear ratings:
Main Hoist Aux. Hoist
Pat (allowable strength h.p.) 190 155
Pac (allowable durability h.p.) 430 417
The applied horsepower is 38 for the main hoist and lo for the aux.
hoist. Based on the above the gearing satisfies CMAA 70 criteria,
Bridge Parking Broke - CMAA 70 requires the brake to be at leastm.
75% of bridge motor torque, for cab on trolley controls,100% if cab
on bridge, and 50% if remote or floor control; EOCl 61 only requires
50%. For the Crystal River Refueling Building Crane, the bridgemotor torque is 43.75 f t.- Ibs. To satisfy CMAA 70 the broke should
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be at least 50% of the motor torque, or 22 ft-Ibs. The actual rating
| is 50 f t.-Ibs., therefore CMAA 70 is satisfied.
n. Hoist Holding Brakes - CMAA 70 and ANSI B30.2 include the follow-
ing criteria for holding brakes that are not addressed in EOCl 61:i
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(l) Minimum torque ratings (relative to motor torque).
' of 125% if used with control braking other thanmechanical; 100% if used with mechanical controlbraking;
(2) Thermal capacity for the frequency of operationrequired by the service; and
(3) Wearing surfaces free of defects that may interferewith operation.
For the Crystal River Refueling Building Crane, the following holdingbroke characteristics are provided:
(1) This crane uses mechanical-friction dirk type brak-ing for lowering of the load with the main hoist. Amagnetic type (spring set and solenoid released)holding broke is used for the main hoist. This brakehas a torque rating of 250% of the full load torqueof the motor. The aux. hoist uses a similar loadbroke method, and has two holding brakes of thesome type as the mein hoist brakes, with a torquerating of 180% of the full load torque of the motor.
(2) These brakes are rated for 1/2 hour continuous duty.Due to the intermittent use of the holding brakesand the short time interval that the brakes aresubject to friction, this rating is more than adequatefor the Crystal River Refueling Building Crone.
(3) Wearing surfaces are designed free of defects;periodic inspection will verify continued complianceand assure replacement of worn components.
Therefore, the holding brakes satisfy CMAA 70.
. o. Bridge Bumpers - CMAA 70 has the following specific criteria onbridge bumpers and stops that are not included in EOCl 61:
(1) Max. deceleration of 3 ft./sec2 when bridge istravelling at 20% of rated load speed;
(2) Capable of stopping crane when travelling at 40% ofrated load speed:
(3) No direct shear on bolts;
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(4) Installed to minimize ports falling;
(5) Runway stops attoched to resist force opplied; and
(6) Stops engoging tread of wheel not recommended.
For the Crystal River Refueling Building Crone, the following bridge
bumper features are provided:
(1) Bridge deceleration from 20% of rated lood speed isless than I f t./sec2;
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(2) Bumpers have odequate capacity to stop bridge from40% of full speed in 1/3 of bumper travel;
(3) Bridge bumper mounting bolts are not in shear;
(4) Bumpers are provided with safety cable to retainbumper if it comes loose;
(5),(6) Runway stops are not used; bumpers serve to limittravel at ends of runway.
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Based on the above, the bridge bumper design satisfies CMAA 70.
p. Trolley Bumpers - CMAA 70 establishes the following design crite-
ria for trolley bumpers that are addressed in EOCl 61:i
(1) Maximum deceleration of 4.7 f t./sec2 when trolleyis traveling at 1/3 of rated load speed;
(2) Bumpers shall be designed and installed to minimizeparts from folling;
(3) Attaching bolts should not be in shear.
For the Crystal River Refueling Building Crone, bumpers are not
provided; however, wheel stops are provided at the ends of the trolley
rails. We are performing further evaluations to assess the signifi-1
; conce of not using bumpers and to assess alternatives if modifications
i are deemed necessary.
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, , ,
q. Wheels - CMAA 70 specifies that wheel food be determined based one
the trolley handling the rated load in the position to produce themaximum food, and that a total clearance of 3/4" to I" be providedbetween wheel flanges and rail head. EOCl 61 does not include these
specific criteria. For the Crystal River Refueling Building Crane,the bridge truck and the trolley wheels have a clearance of .82" and
.90", respectively. The octual maximum wheel loads and the recom-
mended maximum by Table 4.ll.3 of CMAA 70 are os follows:
Rail Recommended Max. WheelWheel Section Max. Load Load
Trolley 132# 86,400# 87,500#Bridge 175# 120,000# 85,000#
The trolley wheels do not satisfy the CMAA 70 recommendations for
the size rail that is used; however, the recommendations inCMAA 70, Table 4.11.3, are only a guide and are not firm specifica-tions. The change required in order to satisfy CMAA 70 would be toreplace the bridge rail with a rail that has on effective rail head thatis only 0.03 in, wider. This change does not appear warranted,particularly since a failure of one of these wheels would result in adrop of less than I inch.
Static Controh - CMAA 70 includes various criteria for crane staticr.
controls; EOCl only addresses crone magnetic controls. Since the
Crystal River Refueling Building Crane uses a magnetic controlsystem, the criteria on static controls are not applicable.
Resistors - CMAA 70 requires resistors used for control broking tos.
have o thermal capacity of Class 160 or better; EOCl 61 does notspecify resistor requirements for control braking applications. TheCrystal River Refueling Building Crone uses mechanical control
braking; therefore, resistor thermal capacity is not applicable.
10
. . . .
t. Restort Protection - CMAA 70 establishes criteria for restortprotection for crones not provided with spring-return controllers or
.
momentary contact pushbottons; this is not addressed in EOCl 61.
These criteria are not applicable to the Crystal River RefuelingBuilding Crane since this crone has spring-return pushbutton controls.
2. Containment Polar Crone
o. Welding - CMAA 70-197S and ANSI B30.2-1976 require that welding
be performed in accordance with the latest edition of AWS D.I.1," Structural Welding Code" and AWS Dl4.1, " Specifications for Weld-
ing Industrial and Mill Cranes." These current standards are more
recent and were not available at the time of the fabrication of theCrystal River Containment Polar Crone; however, the welding proce-
dures used for the Crystal River Containment Polar Crane are judgedto be equivalent to the welding criterio in ANSI B30.2-1976 andCMAA 70-197S based on the following:
(1) Welding was performed in accordance with theversion of AWS DI.] " Structural Welding Code" thatwas current of that time;
(2) AWS Dl4.1 " Specification for Welding Industrial andMill Cranes" was not issued at that time; however,the Whiting practices and procedures used for thewelding were equivalent to what was later issued asAWS Dl4.l;
(3) The welders were qualified to AWS critreia; and
(4) All welds were visually inspected.
b. Impact Allowance - CMAA 70-197S requires use of an impact allow-
once of Y2% of the load per foot per minute of hoisting speed, but not
less than IS% of the rated capacity. EOCI-61 only specified use of
15% for the impact allowance. For the Crystal River RefuelingBuilding Crane (hoist speeds of 4.0 and 26 fpm for the main andauxiliary hoists respectively), the CMAA 70 specification is still met.
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Lateral Forces - EOCl-61 is more conservative than CMAA 70-1975c.
'
for consideration of lateral loods due to occeleration or deceleration;therefore CMAA 70 is satisfied.
d. Torsional Forces - CMAA 70 specifies that twisting moments be
determined based on the horizontal distance between the center ofgravity and the shear center of the girder section. EOCl-61 requirestwisting moments to be based on the distance between the load
center of gravity and the beam center of gravity. Since the Crystal
River Refueling Building Crane girders are symmetrical box sections,these two requirements are the same. Since the trolley rails arelocated over the centerline of the girders, there are no appreciabletorsional forces on the girders.
Box Girder Proportions - CMAA 70 specifies that 1/h (i = girdere.
spon; h = web height) should be less than 25; EOCl-61 has no limit on
I/h. For the Crystal River Containment Polar Crane, I/h = 1,480in./I10 in. = 13.5. Therefore, CMAA 70 is satisfied.
In oddition, CMAA 70 specifies that h/t be less than
7f[ ond less than M, where:C(K+ 1)
t = web thickness = 5/16 in.
C = 162 (Crystal River Containment Polar Crone has one longitudinalstiffener)
K = f /fc = 1.0t
f = max. tensile stress = 12.4 ksit
fe = max. compressive stress = 12.4 ksi
M = 376
Therefore according to CMAA 70, h/t should be less than 386 and less
than 376. h/t = 110/(5/16) = 352. Therefore, CMAA 70 is satisfied.
12
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f. Longitudinal Stiffeners - CMAA 70 specifies a minimum moment of
inertio for longitudinal stiffeners, maximum width to thickness ratio,and stiffener location along the web plate. EOCl does not providesimilar guidance. For the Crystal River Containment Polar Crane,the moment of inertio should be greater than lo = 2.33 in.4, the widthto thickness ratio should be less than 38, and the stiffener should be
located 0.4 of the distance from the compression plate to the webneutral oxis. The octual moment of inertio is 16.5- in.4, the stiffenerwidth to thickness ratio is 28.3, and the stiffener centerline islocated 0.44 of the distance from the compression plate to the web
neutral oxis. Therefore CMAA 70 is satisfied.
g. Basic Allowable Stresses - EOCl-61 is more conservative thanCMAA 70 for allowable tension, compression, and shear stresses, if
b/c is less than 38 (b is distance between web plates and c is thethickness of the cover plate). For the Crystal River ContainmentPolar Crane, b/c is 27 in./2.0 in. = 13.5. Therefore, CMAA 70 is
.' satisfied.4
CMAA 70 also specifies on allowable stress range for crane structural
members that are subject to cyclic loading of greater than 20,000over the life of the crane. The number of cycles for any of the crane
members will be less than 2,000 over the life of the Crystal RiverContainment Polar Crane. Based on this, failure due to cyclicfatigue should not be of concern for this crane.
- h. Transverse Stiffeners - CMAA 70 specifies a minimum moment of
inertio for transverse stiffeners about their interface with the webplate; this is not addressed in EOCl 61. For the Crystal RiverContainment Polar Crane, this criterion is not applicable os fulldepth diaphragms are used.
i. Bridge End Trucks and Trolley Frames - CMAA 70 specifies maxi-mum tension (14.4 ksi), compression (14.4 ksi), and shear (10.8 ksi)
13
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_ _ _ _ . . _ . . _ . . .
.
stresses in bridge end trucks and trolley frames; while EOCl does not,
specify allowable vertical st'resses for these members. CMAA 70 also
specifies maximum drop height (1 in. max.) in case of axle failure inthe bridge truck or trolley. For the Crystal River Containment PolarCrane, the maximum stresses with the rated load are 12.9 ksi for
tension and compression and 8.0 ksi shear for the trolley frame, and
10.5 ksi tension and compression and 8.1 ksi shear for the bridge and
end trucks. The maximum drop would be less than I in, for a bridgetruck or trolley oxie failure. Therefore the crane satisfies CMAA 70.
j. Hoisting Ropes - CMAA 70 specif es a 5:1 hoisting rope safetyfactor for the rated load plus bottom block divided by the number ofparts of rope. For the Crystal River Containment Polar Crane mainhoist:
bottom block = o ~00 lbs.rated load = 360,000 lbs,
parts of rope = 16 (l k" each)
rope published breaking strength = 129,200 lbs.
resulting safety factor = 5.6:1
For the aux. hoist:
block = 3,000 lbs.
load = 60,000 lbs.
parts of rope = 12 (9/16" each)
rope published breaking strength = 27,000 ibs.
resulting safety factor = 5.14:1.
.
Therefore the rope satisfies the criteria in CMAA 70.
k. Hoist Drum - CMAA 70 specifies that drum design should considercombined crushing and bending loads; however, EOCl 61 is not as
specific. The Gilbert Associates procurement specification for this
crane required the design to consider combined crushing and bending
loads. Therefore CMAA 70 is satisfied.
14
. - _ _ . _
r..
CMAA 70 also specifies minimum drum groove depth and drum.
groove pitch; EOCl 61 does not provide such specific guidance. For
the Crystal River Containment Polar Crane, this guidance wouldrequire minimum drum groove depth and pitch of 0.47 in, and1.375 in respectively for the main hoist, and 0.21 in. and 0.64 in. for
the aux. hoist. The octual dimensions are 0.47 in. and 1.375 in. forthe main hoist and 0.250 in. and 0.688 in. for the oux. hoist. There-fore, CMAA 70 is satisfied.
"
1. Cearing - CMAA 70 provides specific criteria for establishing allow-
oble strength horsepower and allowable durability horsepower forhoist gearing, and also specifies a factor for estimating the octualhorsepower imposed on the gearing. For the Crystal River Contain-
ment Polar Crane, the following values apply:
Main Hoist Aux. Hoist
i N I,200 rpm 1,200 rpmp
F 4 in. 4 in.
J 0.44 (motor pinion) 0.43'
Sat 36,000 psi 36,000 psi
Km 2.0 2.0
Pd 4.0 in. 4.0 in.
d 3.25 in. 2.57 in.
Ky 0.84 0.85
| 1 0.68 0.65
Cy 0.715 0.735
Cm I.35 1.35
Cc 0.4 0.4
Sac 85,000 psi 85,000 psil
Ch 1.0 1.0
C 2,300 2,300p
Applied horsepower factor - 75%
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These result in the following gear ratings:
Main Hoist Aux. Hoist
Pat (allowable strength h.p.) 205 172
Poc (allowable durability h.p.) 498 348
The applied horsepower is 45 for the main hoist and 8 for the aux.hoist. Based on the above the gearing satisfies CMAA 70 criterio.
Bridge Parking Broke - CMAA 70 requires the broke to be ct leastm.
75% of bridge motor torque, for ' cob on trolley designs,100% if cab
on bridge, and 50% for floor or remote contro!; EOCl 61 only requires
50%. For the Crystal River Containment Polar Crane, the bridgemotor torque is 65.6 f t.- Ibs. To satisfy CMAA 70 the broke shouldbe 50% of the motor torque or 32.8 ft.-Ibs. The actual rating is35 ft.- Ibs.; therefore, CMAA 70 is satisfied.
n. Hoist Holding Brakes - CMAA 70 and ANSI B30.2 include the follow-
ing criteria for holding brakes that are not addressed in EOCl 61:
(1) Minimum torque ratings (relative to motor torque)of 125% if used with control braking other thanmechanical; 100% if used with mechanical controlbroking;
(2) Thermal capacity for the frequency of operationrequired by the service; and
(3) Wearing surfaces free of defects that may interferewith operation.
For the Crystal River Containment Polar Crane, the following.
holding broke characteristics are provided:!
(1) This crone uses mechanical-friction disk type brok-ing for lowering of the load with the main hoist. A
| magnetic type (spring set and solenoid released)
16
_ . _ _ ._ _
- . . ._ _ _ _ _ _ _ _ _ _ _ _ _ _ .
|
| holding broke is used for the main hoist. This brokehas a torque roting of 210% of the full food torque| *
i of the motor. The oux. hoist uses a similar loadbroke method, and has a holding broke of the sometype os the main hoist broke, with a torque rating of315% of the full lood torque of the motor.
(2) These brakes are rated for 1/2 hour continuous duty.Due to the intermittent use of the holding brakesand the short time interval that the brakes aresubject to friction, this rating is more than adequatefor the Crystal River Containment Polar Crane.
(3) Wearing surfaces are designed free of defects;periodic inspection will verify continued complianceand assure replacement of worn components.
Therefore, CMAA 70 is satisfied for the holding brakes.
Bridae Bumpers - CMAA 70 has the following specific criteria thato.
are not included in EOCl 61 for bridge bumpers and stops; however,
bridge bumpers or stops are not applicable to o polar crane,
p. Trolley Bumpers - CMAA 70 establishes the following design crite-rio for trolley bumpers that are addressed in EOCl 61:
(1) Maximum deceleration of 4.7 f t./sec2 when trolleyis traveling at 1/3 of rated load speed;
(2) Bumpers shall be designed and installed to minimizeparts from falling;
(3) Attaching bolts should not be in shear.
For the Crystal River Containment Polar Crane, bumpers are not
provided; however, wheel stops are provided at the ends of the trolley
rails. We are performing further evaluations to assess the signifi-cance of not using bumpers and to ossess alternatives if modifications
are deemed necessary.
q. Wheels - CMAA 70 specifies that wheel load be determined based on
the trolley handling the rated load in the position to produce the
17
.. . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . i
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - - . - - _ _ _ _ - - .
.
maximum. load, and that a total clearance of 3/4" to la be provided.
between wheel flanges and rail head. EOCl 61 does not include these
specific criteria. For the Crystal River Containment Polar Crane,the bridge truck and the trolley wheels have a clearance of .95" and.80", respectively. The actual maximum wheel loads and the recom-mended maximum by Table 4.11.3 of CMAA 70 are as follows:
Rail Recommended Max. WheelWheel Section Max. Load Load
Trolley 171# 151,200# 123,500#
Bridge 171# 168,000# 154,300#
Based on the above, the wheel load satisfies CMAA 70 criteria.
r. Static Controls - CMAA 70 includes various criteria for crane staticcontrols; EOCl only addresses crane magnetic controls. Since the
Crystal River Containment Polar Crane uses a magnetic controlsystem, the criteria on static controls are not applicable.
s. Resistors - CMAA 70 requires resistors used for control braking tohave a thermal capacity of Class 160 or better; EOCl 61 does not
specify resistor requirements for control braking applications. TheCrystal River Containment Polar Crane uses mechanical control
braking; therefore, resistor thermal capacity is not oppicable.
t. Restart Protection - CMAA 70 establishes criteria for restartprotection for cranes not provided with spring-return controllers ormomentary contact pushbottons; this is not addressed in EOCl 61.
These criteria are not applicable to the Crystal River ContainmentPolar Crane since this crane has spring-return pushbutton controls.
I8
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_- _ _ _ _ - _ - - _ _ - - - - - - - - - - . - - - - - - - .-
TABLE 3.f-l,
CRITICAL CRATE COMPONENTS
Critical load bearing parts are those parts whose failure as a single componentwould result in a drop of the load, or would result in conditions that could lead toa load drop.
l. Holst Gear Case Units
All the gearing and shaf ts are critical including mechani-col broke parts.
2. Extra Reduction Gearing.
The gearing and the pinion shaf t, also the pinion bearinghousing structure and pedestal, including their relatedwelds, are critical.
3. Hoisting Cable
The hoisting cable is critical.
4. Drum
The drum bearings and drum bearing housing structure andpedestal are critical. So are their related welds. Thedrum tube, hub, shaft and all welds are critical, as well asthe cable clamp.
S. The Block
The book, nut, swivel, sheaves, and hanger plates arecritical.
6. Sheave Nest
The sheave pins, equalizer sheave hanger and the majorparts of the structural sheave nest including welds arecritical.
7. Trolley Frame
The load girts and connecting angles including theirrelated welds and the trolley truck frames are critical.
19
.. _ _ - - _ - _ _ - _ - - _ - _ _ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ' - - - - - -
.
TABLE 3.f-l,
(CONTINUED)
8. Bridge
The girders, related cover plate and web plate welds, stiffeners, andbridge trucks are critical.
9. Girder End Connections
The structural girder end connection and welds are critical.
10. Brakes
Hoist motion holding brakes are critical.
I1. Motor Shaf ts and Couplings
Motor shafts and couplings required to hold the load under brakingare critical.
12. Bridge and Trolley Wheels
Bridge and trolley wheels and their axles are critical.
13. Controller
The controller pendant, cabling, and hoisting upper limit switches arecritical.
$
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' APPEtolX A
CRANE EVALUATION
This appendix contains the more detailed backup information to support theconclusions and summary in the response to item 3.f of the NRC request forinformation (see Section 2.0 of this report). This information is provided forFlorida Power Corporation's files and is not required for submittal to the NRC. -
Material reviewed to perform the point-by-point comparison ottoched in thisappendix is listed on the next page.
Since this crone was designed and fabricated in accordance with EOCl-61, this
evoluotion included a comparison of that specification to current stonderds in
CMAA 70 and ANSI B30.2. Where CMAA 70 and ANSI B30.2 are more restrictive
than EOCl-61, or cover creas not addressed by EOCl-61, point-by-pointcomparisons of the Crystal River 3 Containment Polar Crane and RefuelingBuilding Crane design to the crifieria in CMAA 70 and ANSI B30.2 wereperformed.
As a result of these evoluotions, certain deviations were identified. These
deviations, on evoluotion of their significance, and recommended correctiveactions ora contained in Section 1.0 of this report.
A-l
%_ _ _ _ _ _ _ _ _ . _ _ TCn A F FAS T ATl/~WI
_
.
REFERENCE MATERIAL
1. Gilbert Associates' Specification RO-2690, " Detailed Specification forCranes, Containment Vessel Crane, Turbine Room Crane, Refueling Build-ing Crane, Crystal River Unit 3," September,1968 with Addenda A, B, andC
2. Whiting 180/30 Ton Containment Vessel Crane (Serial No.10076)" Operation and Maintenance Manual," May 1971
3. Whiting 120/15 Ton Refueling Crane (Serial No.10078) " Operation andMaintenance Manual," May 1971
4. CMAA 70-1975, " Specifications for Electric Overhead Traveling Cranes,"Crane Manufacturers Association of America
S. ANSI B3.20-1976, " Overhead and Contry Granes," American Society ofMechanical Engineers
6. EOCl 61-1965, " Specifications for Electric Overhead Traveling Crones,"Crane Manufacturers Association of America
7. " Whiting Crane Handbook," Whiting Corporation,1979
8. Whiting Drawings:
Drawing No. Sheet No. Rev.No. Title
U-62944 I I Girder Detail
U-62777 | 2 Structural Truck Fixed BogieType for Circular Crone
T-50280 1 2 40" D. Welded Drum
T-46345 1 2 21" O.D. Welded Drum
U-62673 1 2 Structural Truck Details
U-62656 I 3 Structural Load Girt Details
U-62657 1 1 Structural Load Girt Details(Sects. & Dets.)
S-62410 1 3 Motor Pinion with Double Ext.Shaft for #25 Hoist Unit
A-2
%-
8. Whiting Drawings (continued):.
Drowing No. Sheet No. Rev.No. Title -
S-46376 1 3 Mech. Brake Gear Style 20-30"RH" Trolley #25 Unit #20 Unit
S-21428 1 12 L.H. Brake
S-22819 1 3 Ring Gear for Type RH TrolleyStyle #20 and #25 Units
S-61422 I I Stub Tooth Ring Gear
S-59380 | | Stub Tooth Pinion
S-62409 I I Motor Pinion With Double Ext.Shaft for #25 Hoist Unit
S-22991 1 10 R.H. Brake Screw Shaf t &Pinion for #25 Hoist UnitType "RH" Trolley
S-8545 1 4 Ring Gear for Type "RH" TrolleyStyle #20 and #25 Units
U-63718 I I Girder Details
U-63706 I i Structural Bogie Truck Style27T (24" Wheel) Timken Brg.48290-48220
T-45765 1 4 48" O.D. Welded Drum(Rolled Plate)
T-50965 1 4 17" O.D. Welded Drurn for # 10Hoist Unit - Stub Shaf ts
U-57850 1 2 Truck for 3 Motor Type "RH"Trolley
U-57628 | 2 Main and Aux. Load Girt
S-48450 1 2 Motor Pinion & Shaf t for #25Hoist Unit Type "RH" Trolley.
S-2424 1 9 Mech. Brake Gear Style 20-30"RH" Trolley #25 Unit, #20 Unit
S-21429 1 12 LH Brake Screen
A-3
%TPDA r nDP^DATinN
, . . ._ _ _ _ _ _
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8. Whiting Drawings (continued;:. , ,
, ,. , - - .*Drawing No. Sheet No. Rev.No. Title ,
'
S-61422 I I Stub Tooth Ring Gear.
S-52495 I I Stub Tooth Pinion. _ ,
S-2416 1 6 Hoist Motor Pinion & Shaft for ---
'--Type "RH" Trolley - 14 ' '-
#10 Hoist Unit 7' ,;
e.
S-2417 1 6 Mech. Broke Gear for Type~
-
"RH" Trolley Style 10-15 {~c-.
.' '-
S-13909 | 12 Mech. Brake Screw RH Style #10 ' , . -
Hoist Unit Semi-Chicago LoadBrake .:
.
S-2419 I 7 Drurn Ring Gear for Style 10 .
,
'
Type RH Trolley .. < r-
.
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.
e- 8
: ,--
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.- .- -
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,
11
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~*'
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.;-' |,
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3. . .
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:. . - - - ;.
A-4:
TERA CORPORATION '- [,.'. - - - - - . _ _ _ _ _ _ - - - - - - - - - - - - - - - - _ _ _ _ _ _ . _ _ _ - - - - - - - - - _ _ . _ - - - - - - - - - - - - - - - . - - - . - . - - - - - . -
._ :- .
. < . .
OVERHEAD CRANE EVALUATION**
Location: Crystal River
Crane: Refueling Building Crane
Type: Rectilinear-Traveling Overhead Crane
Rating (Main / Aux Hoist): Main 150 T/ Aux. 15 tons .
Manufacturer: Whiting
Hoist Speed: Main - 5.3 FPM/ Aux. 23 FPM
Trolley Speed: 40 fpm
Bridge Speed: 50 fpm/
.
Design Criteria: EOCI-61 and Gilbert Associates Specification
Evaluation Criteria: CMAA 70-1975 and ANSI B30.2 - 1976;
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']' CRYSTAL 4WER 3.
IA-70 SPECIFICATIONS ANSI-830.2 E0Cl 61 FUEL HAE '. BullalliG1976 (SECT 2-1) cranei
|
I1.2 tulLDING DESIGN CONSIDERATIONS No additional criteria Same as CMAA-10 Compiles
IJ CLEARANCE No additional criteria Requires 6" for wide Crane has a minimumbutidings clearance of 4" between
1.3.1 in the case of narrow width buildings where truss seg may be ignored, a minimum clearance of trolley htgh point and3 inches between the highest pomt of the crane and the lowest overhead obstruction shall be roof low point.
|) provided. For wider buildings where truss seg becomes a factor, this clearance should be
I| increened. CO*PII'5 ] I
|1.3.2 The clearance between the end of the crane and the building columns, knee braces or any other No addit 1onal criteria Same as CMAA-70 Crane is provided wlth |obstructions shall be not less than 2 anches with crane centered on runway reds. For wide
a minimum side clearance i
buildings or where hoevy capacity cranes are used, not less than 3 inches clearance should b* 'of 5-5/8 in.provided. Pipes, conduits, etc., must not reduce this clearance.]
1.3.3 The accuracy of building dimensions shall be the responsibility of the purchaser. Not addressed Not addressed N/A to preventing aload drop.
1.4 RUNWAYfio additional criterta Same as CMAA-10 Complies '
1.4.1 The crane runway, runway rails, and crane stope shell be furnished by the purchenerunless otherwise specified. The crane stops furnished by the purchaser shall be designed tosuit the specific crane to be installed.
1.4.2 The runway rails shall be straight, parallel, level, and at the some elevation. The distance Crane runways and sup- Same as CMAA-70 except Compliescenter to center and the elevation es specified by the purchaser to the crane manufacturer porting structures de- E0CI-61 requires exact (EOCI more restrictive)shall be within a tolerance of plus or minus 1/8'' The runway rails should be standard signed to withstand distance, center torail sections of a proper size for the crane to be installed and must be provided with loads imposed by the center of rails,
proper rail sphces. Floating rails are not recommended crane. Ruriway columnsanchored to foundation.
1.4.3 The crene runway shall be designed with sufficient strength and rigidity to prevent detrimental Structure free from Same as CMAA-70 Compiles 'lateral or vertical deflection. detrimental vibration.
1.5 RUNWAY CONDUCTORS INo additional criteria Same as CMAA-70 Comp 11es
I1.8 RATED CAPACITY Rated load to be marked Same as CHAA-70 Complieson the crane.
I1.7 DESIGN STRESSES No additional criteria Same as CMAA-70 Comp 11es
1.7.1 Materials shall be properly selected for the stresses to which they will be subjected. Loadcarrying parts, except structural members and hoisting ropes and gearing. shall be des:gned sothat the calculated static stress in the material, based on rated load, shall not exceed 20% of thepubbshed average ultimate strength of the material. This hmitation of stress provides a marginof strength to allow for variations in the properties of materials, manufacturing and operatingconditions, and design assumptions, and under no condition should imply authorization orprotection for users loading the crane beyond rated capacity. Structural members shall bedesigned en accordance with the data given m Section 70 3. Hoisting ropes shall be in accord-ance with Paragraph 4 2.
._
I ANSI-B30.2 CRYSTALmVER 3
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1)EOCl 61
filEL HANDL BullDING| CRANE
INo additional criteria Same as CHAA-70 Conglies
1.8.1 All apparatus covered by this specification shall be constructed in a thorough andwork manlike manner. Due regard shall be given in the design for safety of operation,accessibility, interchangeatulity and durability of parts.
1.8.2 This specification includes the safety features of ANSI B30.2.0 Safety Code.
21.9 PAINTING N/A N/A N/A
1.9.1 Before shipment, the cr7ne shall be cleaned and painted with the crane manufacturer'sstandard paint, unless otherwise specified in the purchaser's inquiry,
I1.10 ASSEMBLY AND PREPARATION FOR SHIPMENT No additional criteria Same as CMAA-70 Complies
1.10.1 The crane shall be assembled in the manufacturer's plant unless otherwise stated in theproposal. When feasible the trolley shall be placed on the girders. but it is unnecessary toreeve the hoist blocks. The crane shall be taken apart only to the extent necessary forshipment and all parts shall be carefully match-marked. All exposed finished parts andelectrical equipment shall be properly protected for shipment. If outside storage isa n t icipated, the purchaser shall make arrangements with the manufacturer if extraprotection is required.
If;o additional criteria Same as CMAA-70 Complies
1.11.1 Testing shall be conducted according to the manufacturer's commercial testing procedure.
1.11.2 Any performance of non-destructive testing such as X-ray, ultrasonic, magnetic particle,etc., shall be considered as an extra item and will be done only if specified by the purchaser.
21.12 DRAWINGS N/A N/A N/A
1.12.1 Two copies of the manufacturer's clearance diagrams shall be submitted for approval. Onecopy shall be approved by the purchaser or his representative and returned to the cranemanufacturer. Two sets of operating instructions and spare parts information shall befumished. Detail drawings shall not be furnished.
1.13 ERECTION No additional criteria Same as CMAA-70 except Spec. 322-C1.3. Sectionno statement on protect- 3:15 specifies protec-
1.13.1 The crane shall be erected (including assembly, field wiring. Installation and starting) by ing crane after receipt tion of crane,
the purchaser. Supervision of field assembly may be negotiated separately between the but prior to use,
purchaser and the manufacturer. The purchaser shall protect the crane from the time of Compiles
its receipt until it is placed in service. If the crane is used by another contractor prior to*
acceptance by the purchaser, the other contractor shall be responsible to the purchaser.-
1.14 LUBRICATION Lube points are access- ANSI B30.2 criteria is Whiting operation andible from walkways. 2nly difference. maintenance manual
1.14.1 The crane shall be provided w,tn all necessary lubrication fittings. Before putting the floors, or platforms. chart 1-D specifiescrane in operation, the purchaser shall lubricate all bearings, gears, etc. en accordance with lube pts.the crane manufacturer's recommendations.
Compiles
L ANSI-830.2 CRYSPilVER 3| CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) EOCl 61 FUEL. E AC SullDING
CRANE
21.15 CARRANTY N/A N/A N/A
1.15.1 For warranty, refer to the manufacturer's hterature or proposal forms.
2.2.1 Class A1 (Standby ServicalThis comparison performedNot Addressed Not Addressed
This service class covers cranes used in installations such as; power houses, public utihtees- to verify compliance withC145s Al requirements inturbine rooms. motor rooms and transformer stations. where precise handling of valuableCMAA-10 and ANSI B30.2.machinery at slow speeds with long idle periods between hits is required. Capacity loads may
be handled for initial installation of machinery and for infrequent maintenance. Complies
703 STRUCTURAL DESIGNA-7 steel has a minimumultimate capacity of60 ksi, compared to A-363.1 MATERI AL Not addressed EOCI-61 requires use of with a minimum of 58 ksi.ASTM A-7 steel. Therefore EOCI criteriaAll structural steel used shall conform to ASTM A36 specifications or shall be an accepted type are adequate. Gilbertfor the purposa for which the steel is to be used and for the operations to be performed on it.specified use of A-36
Other suitable materials may be used provided parts are proportioned to give comparable design steel. Crane complies.fators.
32 CELDING AWS D1.1 except as mod- EOCl-61 specifies welding Welding performed IAWified by AUS D14.1. according to AWS but no Whiting shop practices
All welding design and procedures shall conform to the current issue of AWS D14.1 " Specification specific standard is and AWS D1.1. Seefor Celding Industrial and Mall Cranes", with the exception of Section 705, which shall be in accord. referenced. NRC response,anca with the Crane Manufacturer's standard tolerances for deviation from trecified camber andsweep, with all such measurements taken at the manufacturer's plant prior to shipment.
3.3 GIRDERS INo additional criteria same as CMAA-70 Complies(Girders to meet CitAA-3 3.1 Generel70) ,
The crane girders shall be w=elded structural steel box sections. wide flange beams,standard "1" Beams. reinforced beams, or box sections fabricated from structural shapes.The manufacturer shall specify the type and construction of the girdens to be furnished.
3.3.2 Loadmes
3.3.2.1 Crane girders shall be proportioned to resist all vertical, lateral and torsional forcescombined as specified in Section 3.3.2.2 and as defirwd below:
3.3 2.1.1 Vertical Forces
3.3 2.1.1.1 Dead Load: The weight of all effective parts of the bridge structure, the machineryparts, and the fixed equipment supported by the structure.
3.3 2.1.1.2 Live Load: The weight of the trolley and the lifted load (rated capacity) shall beconsidered as concentrated moving loads at the wheels and located in such positionsas to produce the maximum moment and shear.
I ANSI-830.2 CRYSTAL 9ER 3CMAA-70 SPECIFICATIONS 1976 (SICT 2-1) EOCl 61
FEL MANL a BillLDINGCRANE
For hoisting speedsof 5.3 fpm mainhoist and 23 fpmauxiliary hoist. Impactallowance of 1/2% ofthese speeds is less3 3 2.1.1.3 Impact Allowance: For crenes operstme on runwsys es described in Section 1.4. the No additional criteria Requires minimum 15% of than 15% minimum require-
impact allowance of the rated capacity shall be taken as %% of the load per foot pet rated Capacity. ments. Therefore,minute of hoesting speed. but not less than 15% ncr more than 50%. tacept for bucket complies,erd magnet cranes for which the impact value shall be taken as 50% of the rated capacity.
3.3.2.1.2 Lateral Forces No additional criteria Requires a lateral load EOCI-61 is more con-allowance of 5% of the servative than CMAA-703.3.2.1.2.1 Lateral load due to acceleration or deceleration shall be considered as 2%% of the live load for all cranes. In this area. There-leve load and the crane bridge, exclusive of end tri:ks ard end ties for Class A fore, complies,
cranes. 5% for crane Classes B. C and D and as 10% for Class E cranes. The hveload shall be considered as a a>ncentrated load, located in the same position aswhen calculating the vertical moment. The lateral moment shaft be equally dividedbetween the two girders and the mornent of inertia of the entire girder sectionabout its vertical amis shall be used to determme the stresses due to the lateralforces.
3.3.2.1.2.2 Lateral load due to wind shall be considered as 5 pounds per square foot of P!o additional criteria Requires lateral load Wind load not appil-projected area. The wind load on the trolley shall be considered as equally dividedbetween the two girders. Where multiple surfaces are exposed to the wind. such as of 10 PSF on projeMed cable to this crane,
area. Crane is located in-bridge girders where the horizontal distance between surfaces is greater than thedoors.depth of a girder, a wind area shall be considered to be 1.6 times the projected area
of one girder. For single surfaces such es cabs or machinery enclosures, a projected Compliesarea shall be considered to be 1.2 times the projected area to account for negativepressure on the far sede of the enclosure.
3.3 2.1.3 Torsional Forces
3.3.2.1.3.1 The twisting moment due to starting and stopping of the bridge motor shall be No additional criteria Same as CMAA-70 Compiles Iconsidered as the starting torque of the bridge motor at 200% of full load torquemultiphed by the gear ratio between the motor and the cross shaft.
3.3.2.1.3.2 The twisting moments due to overhanging loads on the side of the girder shall ba Pio additional criteria Requires distance to be Loads do not overhang.taken as their respective weights multiplied by the horizontal distances between the center of load to center Girders are box construc-respective centers of gravity and the shear center of the girder section. of gravity of girder. tions. Therefore,complies.
3.3 2.1.3.3 The twisting moments due to lateral forces acting eccentric to the horizontal neutral flo additional criteria Rtquires distance to be Box girder is synsnetri-amis of the girder shall be considered as those forces multiplied by the verticalbetween centerline of cal about neutral axis;distance between the center line of force and the shear center of the girder. force and center of therefore, shear centergravity of girder rather and center of gravitythan to shear center of are essentiallygirder. identical.
Complies
.
I ANSI-B30.2 CRYSIAL RIVER 3CMAA40 SPECIFICAll0NS 1976 (SECT 2-1) E0Cl 61 FUEL MA! 'lC BilllDIN
__L:nNE
3.3 2.2 The combmed bendmg stress shall be taken as the larger of the following two des'gs. ?!o additional criteria Same as CMAA-70 Complies Icases, includmg a wind load of 5 pounds per sque.e foot for outdoor cranes:
3 3.2.2.1 The sum of the maximum stresses due to dead load, weeght of trolley, rated loadand impact allowance.
3 3.2.2.2 The sum of the maximum stresses due to dead load, weight of trolley, tated loadand lateral forces.
3.3.2.3 The combined shear stress shall be taken as the sum of the maximum shear due to No additional criterfa Same as CMAA-10 Complies Idead load, weight of trolley, rated load, impact allowance and net twisting moment.
3.3.3 DESIGN LlMITATIONSfio additional criteria Requires also that maximum EOCI 61 more conserva-
3.3.3.1 Weided Box Girders. stress be 20% of ultimate. tive than CMAA-10.
Welded box girders shall be fabricated of str'uctural steel with continuous longitudinal Complieswelds running the full length ri the girGer. All welds shall be ample to develop the beamsection for the maximum shca, and bendmg.
3.3.3 1.1 Proportions No additional criteria Requires: 1/b (55 1/b= 552" = 53.9460t/h should not exceed 25 '
h nt1/b should not exceed I spectfled) b/c= 10.25" = 10.25 < 60b/c should not exceed 60
1/h= 552"/15"=7.36( 25Complies.The h/t ratio of the web plate, when provided with transverse stiffeners or
tio additional criteria EOCI-61 requiresdiaphragms as specified in Section 3.3.3.1.5 is limited by the use of longitudinal h/t ?40 or,stiffeners, as follows: t = 5/16
h = 75"The h/t ratio of the web shall not exceed: ~ 1.0116,000 '
85(k+1)y fh/t c = 162 (one longitudinal
h B nor shall it exceed M C #" N *C(k+1)=
c whichever is less C "P''55IU"t Izone)
Where: The coefficients C and M are as tabulated below: f 416 (max. allowed byLongitudinal stiffeners C M
None 81 188* H = 376One 162 376
I17Two 243 564h1(max)= 162(1+1) g.6't
* For other values of M at reduceo wess levels, see the following table.Man Yt for 16.3 ksi compression stress 188* = 339.8Man h/t for 12.0 ksi compression stress 520Man h/t for 10 0 or less compression b 75=
stress 240 /t y = 240Where:
Comp 1iesI = Span in inches
Distance between web plates in inchesb =
Thickness of top cover r ate in inchesc =Maximum compressive stress (k.silf =
cMaximum tensile stress (k.s ilf =
g
Depth of web in irw.hesh =
f /fk = g cThickIr3 of web in inchest =
__ - _ _ _ _ _
! ANSI-B30.2 CR F M 3EOCl 61CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) F M L liAh m.4C BUIL9416G
CRANE
The longitudinal stiffener3 3.3.1 2 Longitudenal Stiffeners Not addressed Not addressed f
*, g,, a ggs
3.3.3.1.2.1 when one longitudinal stiffener is used it shall be placed so that its centerline is 0.4 to the top of the web.
The momerrt of inertia oftimes the distance from the inner surface of the compression flange plate to thethe stiffener is*neutral exis. It shall have a rnoment of enertia no less than:
4.676 IN|=
14
3 I =1.715 INf, = 1.2 0.4+06f+0. 2+ 8 ht - in.# 3D es not comply
See NRC submittalIf f is greater than f . a distance equal to twice the distance from the inner surfacec g
of the compression flange to the neutral axis shall be substituted in place of **h" in I
equation for I . |
3.3.3.1.2.2 When two longitudinal stiffeners are used they shall be placed so that their flot addressed Not addressed N/A (this trane hascenterfines are 0 25 and 0 55 times the distance, respectively, from the inner surface one stiffener in theof the compression flange plate to the neutral axis. They shall ear.h have a moment compression region).of inertia no less than:
2 h:3 , ;,,40.3 + 0.4 { + 1.I, = 1.2 + 14
If f is greater than f , a distance equal to twice the distance from the inner surfacec tof the compression flange to the neutral axis shall be substituted in place of **h" in
! equation for I,.
Where;
a - The longitudinal distance between full depth diaphragms or transverse stiffenersin inches.
A = Area of one longitudinal stiHener in pare inches.s
33.3.1.2.3 The moment of inertia of longitudinal stiffeners welded to one side of a plate shall flot addressed Not addressed~
The moment of inertiabe calculated about the interface of the plate adjacent to the stiffener. calculated above was
determined about theFor elements of the stiffeners supported along one edge, the maximum width to interface of the plate , *
h s fenerthickness ratio shall not be greater than 12, and for elements supported along bothedges, the maximum width to thickness ratio shall not be greater than 38. If the along both edges and hasratio of 12 is exceeded for the eierr.ent of the stiffener supported along one edge, a width to thicknessbut a portion of the stiffener element conforms to the maximum width thickness ratio of 11.3.ratio and meets the stress requirements with the excess considered as removed, themember wifl be acceptable. Compiles.
-
L ANSI-BC CRYSIP 'tVER 3CMAA-70 SPEClflCATIONS 1976 (SECT 2-1) E0Cl 61 Fut uANL A MilDING
CRANE
3.3.3.1.4 Stiffened Plates in Compression:No additional criteria Not addressed Not applicable. There
When one, two or three longitudinal stiffeners are added to a pla's under uniform are no longitudinalcornpresseon, dividing et into segments having equal unsupported wedths, full edge stiffeners added to thesupport well be provided by the longitudinal stiffeners, and the provissons of Section Compression plate.
3 3 3.1.3 may be applied to the design of the plate snaterial when stiffeners meetmenimum requirements as follows:
3.3.3.1.4.1 For one longitudmal stiffener at the center of the compression plate, where b/2 isthe unsupported half width between web and staf fener, the moment of inertia ofthe stiffener shall be no less than:
2 3in.40.6 f + 0.2l = + 30 bto
The moment of inertia need not be greater in any case than as given by thefollowing equation:
32.2 + 10.3 1+ bt in.4I ao
3.13.1.4.2 For two longitudinal stiffeners at the third points of the compression flange, whereb/3 is the unsupported width, and A the area of one stiffener, the rnoment ofsinertia of each of th,e two stiffeners shall be no less than:
2 ' 3 - in.40.4 f + 0.8l =+ 8.0 bta
The moment of inertia need not be greater in any case than:
39 + 56 + 90 bt - in.4l =o
-
3.3.3.1.4.3 For three longitudsnal stiffeners, spaced equidistant at the one fourth width locationswhere b/4 is the unsupported width, and limited to a/b less than three, the momentof inertia of each of the three stif feners shall be no less than:
0.35 f + 1.10 2+ 12 bt m.3 4l =o
Where: a = The longitudinal distance between diaphragms or transversestilleners ~ in.
As= The area of the stiffener - sq. in,The thickness of the stiffened plate - in.t =
3.3.3.1.4.4 Stiffeners shall be designed to the provisions of Section 3.3.3.1.2.3.
_ _ _ _ - _ _ - _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ - - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ __- _ -
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1)E0Cl 61 FEL llE .C MILDiH
CMAK. . .
3 3.3.1.3 Bas.c Allowabie Stresses fio additional criteria Requires maxinum tensile EOCl-61 is more conserva-stress of 16.0 ksi tive. Therefore, complies
Tension = 17.6 ksa
Compression = 17.6 ksi when the ratio of b/c is equal to or less than 38. No additional criteria Requir. s maxima compres- E0Cl-61 is sure conserva-sive stress of 16.0 ksi tive in this requirement.
When the rat.o of b/c enceeds 38, the allowable compressive stress for b/c ratios exceeding Therefore, complies,shall be computed from the following formula: 41, the allowable com-
pressive stress in the (b/c = 10.25 438)top flange is reduced.
17.6fc =
52: fc 110 ksi16.3 ksi b/cb/c 40. fc ===='
56: fc 9.8 ksa14.1 ksi b/c44: fcb/c ====
60: fc 8.9 ksi12.4 ksi b/c48: fcb/c = ===
Magimum shear is 12.0 ksi EOCI-61 is more conserva-Shear = 13.2 ks- No additional criteria tive. Therefore, complies
Bearing = 26.4 ksi on plates in contm fio additional criteria Bearing stress is not Complies since [0CI isspecifically addressed. more conservative.
Allowable Stress Range . Repeated Loads: No additional criteria Stress range for repeated This crane is designedloads not addressed. to EOCl-61 which limits
Members and festeners subject to repeated load shall be designed so that the stresses to 16 ksi,maximum stress does not exceed that shown above, nor shall the stress range Since there is no pre-(maximum stress minus minimum stress) exceed allowable values for various stressing of componentscategories as listed in table 3.3.3.1.3 1. The minimum stress is considered as negative end no reversal of stressif it is opposite in sign to the maximum stress. The categories are described in when load is applied, theSection 3.10 with sketches included. The allowable stress range is to be based on Crane design stressesthe condition most nearly approximated by the description and sketch. are less than CMAA-70.
Therefore, complies.
TABLE 3.3.3.1.3-1__
Allowable Stress Range. F , - ksi
Ccane Service Classifecation
A and B | C and D | E | F
Category Number of loading Cycles
20.000 to 100.000 to 500.000 to Over( 100.000 500.000 2.000.000 2.000.000l
A 40 32 248 33 25 17C 28 21 14 Steel MillD 24 17 10 ServiceE 17 12 7 A.I .S .E.F 17 14 11 Spec.G 15 12 9
~
I ANSI-830.2 CRYSTAL RIVER 3"
CMAA-70 SPECIFICATIONS 1976 (SECT 21) EOCl 61 FEL MAN [ ; BUILDlWC
CRad'
No additional criteria Requires closer spacing E0CI is more conservative,3 3 3.1 5 Diaphragms and Vertical Stif feners for same stress levels Therefore, complies.
compared to CMAA-70.3 3.3.1.5 1 The spacing of the vertical web stiffeners in inches shall not eneed the amount
given by the formula:
350 ta -
Thickness of web an inchesWhere: t =v= Shear stress in web plates (k.s.i.)
3Nor shall the spacing exceed 72 inches or h. the depth of the web, whichever is No additional criteria Same as CMAA-70. Complies
greater.I
3.3 3.1 5 2 Full depth diaphragms may tu included as vertical web stif feners toward meeting ho additional criteria Same as CMAA-70 Complies
this requirement.
3.3.3.1.5.3 The moment of inertia of any transverse stiffener about the interface of the web No additional criteria Not addressed Does not apply. Fulldepth diaphrages are
plate, if used in the absence of diaphragms, shaft be no less than: tased in welded box3 3 girders,
1.2 h tn.4o,
Sao
The required distance between stiffeners in.Where: s =oThe minimum required web thickness . in.t -
o
Stiffener elements shall be proportioned to the provisions of Section 3.3.3.1.2.3.
I3.3.3.1.5.4 Web plates shall be suitably reinforced with full depth diaphragms or stiffeners at all No additlonal criteria Same as CHAA-70 Complies
maior load points.
No additional criteria Requires diaphragra plate EOCI is more conserva-3.3.3.1.5.5 All diaphragms shall bear against the top cover plate and shall be welded to the web adequate to transfer tive. Therefore,
plates. The thickness of the diaphragrn plate shall be sufficient to resist the trolley load to web with maximum complies.wheel load in bearing at 26.4 ksi. on the assumption that the wheel load is of 16.0 ksi compressivedistributed over a distance equal to the width of the rail base plus twice the and 12.0 ksi shear stress .
distance from the rail base to the top of the diaphragm plate.I
3.3.3.1.5.6 Short diaphragms shall be placed between full depth diaphragms so that the maximum No additional criteria formula is same as CompliesCHAA-70, only in
distance between adjacent diaphragms will limit the maximum bending stress in the different for1a.trolley rail without impact to 18.0 ksi based on:
18 0 kai = { trolley wheel load) (distance between diaphragms)6 (section rnodulus of rail)
I3.3.3.1.6 Dellection and Camber f|o additional criteria Same as CHAA-10 Complies
3.3.3.1.6.1 The maximum vertical deflection of the girder produced by the dead load, theweight of the trolley and the rated load shall not exceed .00125" per inch of span.Impact shall not be considered in determining deflection.
3.3.3.1.6.2 Garders shall be cambered an amount equal to the dead load deflection plus one half
the hve load deflection. -
_
._-__ - _ ___ - - _ _____ - - - _.- _ _ _-..__ .___ _
_.
__ ,,
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1)EOCl 61 FEL NAE ; MitalNG
crane
23.3 3 2 Welded Torsion Box Girders: N/A N/A N/A
3.3.3 3 Smgle Web Girders
3 3.3 4 Box Section Girders Built of Two Beams
3.4 IRlDGE END TRUCKS No additional criteria in addition to CHAA-70 Double flanged wheels arerequirements, EOCI-61 provided. EOCl-61 more
3.4.1 The crane bridge shall be carried on end trucks of ample site to carry the rated load requires double flanged Conservative,
when lifted at one end of the crane bridge. The wheel base of the end truck shall be 1/7 wheels.-
of the span or greater. Complies
3.4.2 End trucks may be of the rotating axle or fixed axle type as specified by the crane No additional criteria Same as CMAA-10 Complies 3manufacturer.
3.4.3 The bridge end trucks shall be constructed of structural steel providmg a rigid structure. Provisions should be Does not specify the Overturn lock supportProvision shall be made to prevent a drop of more than one inch in case of axle failure, made to limit drop of allowable vertical prevents truck fromSubstantial guards shall be provided in front of each outside wheel and shall project below the trolley and bridge stresses for bridge dropping more than I".top of the runway rail. trucks to one (1) inch end trucks. Max. tension = 11.45 ksi
in case of wheel or axle Max. shear = 5.63 ksi3 **Allowable vertical stresses without impact: 3
Tension = 14.4 ksiCompression = 14.4 kaiShear = 10.8 ksi
For Class D and E cranes, consideration should be given to impact loading and repeatedduty cycle.
23 5 FOOTWALKS AND HANDRAILS N/A N/A N/A
3.6 OPERATOR'S CAB 4gjg3.7 TROLLEY FRAMES
Ho additional criteria Does not permit use of Frame is welded steelductile iron; otherwise p! ate. CompilesThe trolley itame shall be welded steel, cast rteel, or ductile iron construction or a combination thereof.
it shall be of rigid cx>nstruction designed to transmit the load to the bridge rails without undue deflec.tion. Provisions should be made to prevent a drop of more than one inch in case of axle failure.
Allowable vertical stresses, without impact (steel) Provisions should be Does not specify verti. Clearance from bottom ofmade to limit drop of cal stress limits. trolley to top of rail
Tension = 14.4 ks.i trolley to one inch is 6 1". Overturn locksCompresrion = 14.4 ksi when the ratio of b/c is equal to or less than 38 in case of wheel or prevent greater than 1"
axle failure. drop of trolley in caseWnen the ratio b/c exceeds 3B, the allowable compressive stress is to be f wheel cr axle failure.i proportioned from the salues shown in Section 3.3.3.1.3 in the ratio of 14.4 +
17.6 Max. tension = 4 ksiSherr = 10.8 ks Max. compression = 4 ksi
Mas. shear = 9.66 ksiFor Class D and E cranes, consideration should be given to impact loading and regwated duty 3cycle. Compiies
_
CMAA-70 SPECIFICAll0NS .N6 (SECT 2-1) E0Cl 61 ggtlumou. 'AILDiliG~
CRAWL
.8 CALLS Na additional criteria N/A N/A bridge rail failurewill not result in aload drop.
No additional criterie Gantry cranes not N/A (crane is notaddressed in E0CI. a gantry type).Design of leg end tie, strut, and s:ll members shall conform to applicable sectio. s of the current
edition of the Manual of Steel Construction as pubhshed by the American Institute of StaelC,onstruction, at a unit stress proputtioned to that used for garder design in Section 3.3.3.1 ofthe C.M.A.A. Specsfication.
I LOAD BLOCKSNo additional criteria Along only forged steel Block frame is welded
0.1.1 The load block frames shall be of steel construction. The hook shall be of rolled steel, for the hook. Otherwise and bolted steel; hook
same. is forged; hookforged steel or a certified material, supported on a ball or roller thrust bearing. The hook5shall rotate freely on this bearing.t t be r g.
Complies& HOISTING ROPES
Rope end shall be Does not include weight Main hoist rope has
G.2.1 The hoisting ropes shall be of propcr design and construction for crane service. The rated anchored by a clamp to of bottom block, safety factor of 9.8:1the drum. and aux. hoist rope alsoc pacity load plus the bottom block divided by the number of parts of rope shall not
0szceed 20% of the pubhshed breaking strength of the rope. 53*{8 y
load block is3.2.2 Thi cable construction shall be as specified by the crane manufacturer. When entra strength Considered.
sttil or were center rope is used the crane manufacturers specifications shall so state.
SHEAVES No additional criteria Requires steel or cast Sheaves are cast iron,
iron. Class 40.3.3.1 The sheaves shall be steel or minimum ASTM grade A48 64, or later, Class #0 cast iron gg,p g,3y
or equal as specified by the crane manufacturer.
I3.3.2 The pitch diameter of the running sheaves shall be not less than 24 times the rope No additional criteria Same as CMAA-70 Complies'diameter when 6x37 rope is furnished or 30 times the rope diameter when 6x19 rope is
furnished.
IJ.3.3 Tb pitch diameter of idler sheaves shall be not less than one half of the diameter of No additional criteria Same as CMAA-70 Complies
running sheaves.
I.3.4 t*! hen special clearance ar.d hft or low headroom is required, it may be necessary to No additional criteria Same as CMAA-70 Compliesdevirte from these limitations.
i
1iDRUM No additional criteria Requires use of high Drum is centrifugallyI grade cast f ron or cast steel tube.b.4.1 The drum shall be steel or minimum ASTM Grade A48 64 or later, Class 40 cast iron or equal matersal.
equal material as specified by the crane manufacturer. It shall be designed to withstand Compliescombined crushing a d bending loads.
4.2 The drum shall be so designed that not less than two complete wraps of hoisting rope No additional criteria Sanie as CMAA-7; Complieswill rernain in the grooves when the hook is at the lowest position for the lift specifiedand not require overlapping of the rope when the hook is at its highest point.
. _ _ _ _ _ . - ~-
ANSI f,0.2 CRYSTF 7VER I'
! CMAA-70 SPECIFICATIONS 1976 (;ECT 2-1) EOCl 61 FUEL MAND 2 tillLDINCCRANE
4 4.3 Drum grooves shall be machined. Grooving shall be right and lef t hand unless otherwise No additional criteria Sane as CMAA-70 Complies I'
specified by the crane rnanufacturer.
4.4.3.1 Recommended minimum drum groove depth is 3/8 x rope diameter- No additional criteria No spectfic depth orde h pth r
4.4.3.2 Recommended minimum drum groove pitch is either 1.14 x rope diameter or rope f 70
,
i diameter + 1/8 inch, whichever is smaller. d c eriSee NRC response.4.4.4 The p.;ch dieneter of the drum shall be not less, than 24 times the rope diameter when No addih onal criteria Same as CHAA-70 Compiles
| 6 37 rope is furnished or 30 tin.es the rope dianieter when 6x19 rope is furnished.
4.4.5 When special clearance and hft or low headroom is required it may be necessary todeviate from these limiations.
4.5 GEARINGNo additional criteria Same as CMAA-10 Complies I
4.5.1 All gears and pinions shall be constructed of steel or other material of adequate strengthand durabihty to rneet the requirements for the intended class of service.
4.5.2 The horsepower reting for all spur, helical and herringbone gearing shall be based upon No additional criteria Not addressed The following apply toArnerican Gear Manufacturers Association (AGMA) Standards: 220.02, August 1966, the Crystal River re-" Rating the Strength of Spur Gear Teeth". 210.02. January 1965, " Surface Durability fueling building crane:(Pitting) of Spur Gear Teeth". 221.02 July 1965, " Rating the Strength of Helical andHerringbone Gear Teeth", and 211.02 February 1%9, " Surface Durabihty (Pitting) ofHehcal and Herringbone Gear Teeth". For the purpose of this specification the powerformula may be written: Main Holst Aux. Holst
N 1200 rpm 1200 rpmp
F 4 in. 4 in.Allowable Strength Horsepower-J .44 .45NdKg p S,, jp
p -
S 36,000pst 36,000 psiat 126.000 KmPd at
k 2.0 2.0and Allowable Durability Horsepower- "
N FICy S dCh 2p acp .
C p 4.0 5.0126.000 Cm Cc
,p
,
ac
d 3.0 in 3.0 inWhere N Oy
P,: - allowable strength horsepoweri .69 .67P - allowable durabihty horsepowerac
N - panion speed - RPM C *72 72p vd - pitch diameter of pinion - inchesK, - Dynamic factor (strength)C, - Dynamic factor (durabihtyi C 1.35 1.35
mF - Net face width of the narrowest of the mating gears
C .4 .4K - Load distribution factor (strength) CmC - Crane Service Factor (durabihty) (See Table 4.5.2)c
S 85,000 85,000C - Lodd d'stribution factor (durabihty) gm
C 1.0 1.0h
r n00 7300
*I ANSI-830.2 CRYSTAL |lVER 3
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) EOCl 61 FEL MAN G BillLDINGCknNE
Based on the above, the
C - Elastic Coetticient allowable strength &p
are:gilityhorsepowerduraCg - Hardness factor (durability)
J - Geometry factor (strength)I - Geornetty f actor (deabihtyl Main Holst Aux. Hoist-Pd - Diametral pitchSan - Allowable bending stress for material - P.S.I. (strength) P,g= 190 155 '
*
Sac - Allowable contact stress number idurabitatyl
The values for K,. Cy. Km. Cm. C . J, I. S and S,c can be determined frorn the tables P"= 430 417p
and curves in :he appropriate AGMA specification previously rnentioned, the value for Ccwill be found in table 4 5.2 and the remaining values will be physical characteristicspertaining to the gears or their operating characteristics.
TABLE 4.5.2
CRANE SERVICE FACTOR
Crane Class
A1 & A2 ,8 C D E
C .4 .5 .55 .6 .7c
4.53 The actual horsepower imposed on the gearing shall be considered as the rated horsepower tio additional criteria Not addressed The refueling buildingcf the rnotor involved, at its normal time rating rnultiplied by the factors shown in table crane is Class A; there-
fore the multiplier is4.5.3 for the various classes of crane service. 0.75.
TA8l.E 4.53 Main hoist motor gearingsees .75 (50 h.p.)=37.5 -
Class Multipleer for Apphed Aux. hoist motor gearingCrane Motor Horsepower sees .75 (25)= 18.75
A1 75% These are well below theallowables determined in
A2 75% 4.5.2 al,ove. Therefore
B 85% crane complies.
C 90%
D 95%
E 100%
4.5.4 When worm geuing is called for, it shall be rated by the gear manufacturer with No additional criteria Not addressed N/A (no worm gearing isused)
tppropnate service factors.I
4.5.5 The type of gearing shall be specified by the crane manufacturer- fio additional criteria Same as CHAA-70 Complies
Gearboxes are provided w/4.5 6 Means shall be provided to insure adequate and proper lubrication on all gearing. All flo additional criteria Requires oil bath or grease
gearing except the fmal reduction at the drum or wheels shall run in oil or be splash for high speed gearing. g g
lubricated.
flo additional criteria Requires seviceability (in- Lube points provided on4.5.7 All gearing not enclosed in gear boxes shall be guarded, with provision for lubrication and spection &~1ube) in Sec. 14. crane; & accessible formaintenance. Complies
inspection.
-. ____
.
. _.
ANSF530.Z mm = <EOCl 61
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) FUEL MANDk..A BUILDINGCRANE
N/A N/A N/A 2
4.6 CEARINGS
4.7 BRAKES See below on hoist Brake torque capacity Complies
holding brakes. addressed specifically4.7.1 Brakes will be supplied for the anotion concerned. and will have rated torque capacities as for different type
brakes.specified in the following paragraphs. Brake torque capacities will be based on applicabler:ted anotor torques. both of which will be for the sarne tirne period. For multiplemotors the required brake torques will be increased proportionally.
4.7.2 Bridge Motion N/A N/A N/A 2f*N"Se$ "[ko[N i t $
satisfy NR position)2
4.7.3 Trolley Motion N/A N/A N/A
4.7.4 Hoist Motion. Holding Brakes in addition, B30.2 re- Sections 4.7.4.2, Whiting SESA brakes pro-quires: 4.7.4.3, & 4.7.4.4 of vided as holding brakes
4.7.4.1 Each independent hoisting unit shall have at least one holding brake, which will be applied CMAA-70 are not addressed (one each on main &cutomatically on power removal. This brake will be mounted on the motor shaf t or on a (1) Holding brakes shall in EC01-61. Also, the aux. hoists). Main hoist
have a therrnal capa- two requirements of B30.2 brake has capacity ofCaf t en the hoist gear train.city for the fre- are not addressed. 250% of motor torque.
en of ope ation x s brak has4.7.4.2 Minimum torque ratings of holding brakes, in relation to motor torque, at point ofapplication. service; wp M@ Wu125% when used with a control braking rneans other than mechanical. (2) The wearing surface are adjustable. Holst uses
of brake wheels, mechanical control braking.100% when used with a mechanical control braking rneans. drums, or discs shall Complies 3100% for each brake if two holding brakes are provided. be free of defects .
that interfere with
4.7.4.3 Where necessary, hoist holding brakes shall be provided with adjustment to compensate operation.for wear.
24.7.4.4 Each independent hoisting unit of a hot metal crane having power control braking. shall have at N/A N/A N/A
least two holding brakes.
_ _ _ _ _ _ _ _ _ _ _ __ _ _ _- _ . -- - v ngag DJg.z UNT5fB W~CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) EOCl 61 FEL HAND .BullDING.
CRANE |14 7.5 Hoist Motum, Control Brakes The control braking Same as CMAA-70. except A mechanical control I
shall have a thermal for the additional B30.2 brake is provided for4.7.5.1 Each andependent hoist unit shall also have cxmtrol braking means to prevent capacity for the f.e. requirement on thermal each hoist. See opera-over speeding, unless worm gearing with an efficiency suitable to prevent acceleration of quency of operation capacity. tions and maintenancethe load an the lowering direction is used. required by the services manual provided by
Whiting. j4.7.5.2 Control braking may be power, such as addy current, dynamic or countertorque, or may be
mechanical. Either must be capable of maintaanang safe lowering speeds of rated loads. Comp 1tes
4.3 BRIDGE DRIVES2N/A N/A N/A
4.9 SHAFTS fio additional criteria Same as CMAA-70 with res- Complies Ipect to shafts other than
4.9.1 AH shafts, except the bridge cross shaft sections which do not carry gears, shall be cross shafts.machined at bearing and gear fits. Intarmediate bridge cross shafts may be commercialshafting. The spacing between bridge crostshaft bearings shall be as shown in table 4.9.1.
"^ "IATABLE 4.9.1
Maxirnum Spacing 8etween Line Cross shaf ts are notShaft Bearings at Speeds of applicable to preventingShaft
a load drop.Diameter 0 to 100 101 to 300 301 to 400ilnches) RPM RPM RPM
1% 8'4 8'4 8' O2 10'4'' 10'4" 10'-6"24 15'4 15'-0 13'43 17'4" 16'4 14'4"
3% 19'O 16'4 15'6"4 21'4 16*4 16'4
When the shaft speed exceeds 400 RPM the bearing spacing shall not exceed thatdetermined by the following formula, or the Table 4.9.1, whichever is less, in order toavoid objectionable vibration at critical shaft speeds.
4,760.000 m D,
1.2 x NL = Distance between bearing centers - inchesD Shaf t diameter - inches=
Maximum shaft speed - RPMN = '
e
I
"I ggg-gjg g mm 5mn w;
CMAA40 SPECIFICATIONS 1976 (SECT 2-1) EOCl 61 FELNANI BUILDlHGcrane
~
4.10 COUPLINGSN/A N/A
4.10.1 Cross shaf t couplings, other than flexible type, shall be steel or minimum ASTM GradeA48 64, or later, Class 40 cast iron or equal material as specif 6ed by the cranemanufacturer. The type of coupling (other than flexible) may be compression, sleeve, orflange type. Flexible couplings shall be the crane manufacturer's standard type. Couphngsshalf be provided at each end truck and each side of the motor gear reducer. Additionalcouphngs may be installed as necessary.
I4.10 3 Motor couplings shall be as specified by the crane manufacturer. No additlonal criteria Same as CMAA-73 Complies
4.11 WHEELSI
tio additional criteria Same as CMAA-10 except Complies4.11.1 Unless other means of restricting lateral movement is provided, wheels shall be double tolerance on drive wheel ,
flanged with treads accurately machined. Bridge wheels may have either straight treads or is not specified. (Tolerance on drivetapered treads assembled with the large diameter toward the center of the span. TrolleV wh el diameter iswheels should have straight treads. Drive wheels shall be matched pairs within .001 inches not critical to pre-
per inch of diameter or a total of .010 inches on the diameter which ever is smaller. venting a load drop).When flangeless wheel and side roller assembhes are provided they shall be of a type anddesign recommended by the crane manufacturer.
flo additional criteria Requires chilled iron, Specification R0 2690,4.11.2 Wheels shall be rolled or forged from open hearth, basic oxygen or electric furnace steel, forged or cast steel. Addendum B requiresce cast of an acuptable cast or nodular iron, or cast of an acceptable carbon or alloy forged or rolled steel '
steel unless otherwise specified. Wheels shall be heat treated if speofied on the wheels.information sheets. Compiles
4.11.3 Wheels shall be designed to carry the maximum wheel load under normal ceditions flo additional criteria Essentially same as Bridge wheel load criteriawithout undue wear. The recommended wheel load shown in table 4.11.3 is that load CMAA-70. Only dif- are satisfied.3 Trolleyproduced with trolley handling the rated load in the position to produce the maximum ference is location of wheel load criteria are
- load and may be used as a guide for wheel sites. Impact is not included in these figures- trolley for maximum not satisfied. See NRCFor unusual conditions, consideration should be given to other factors which are not load. response,
included in the simple formula on which table 4.11.3 is based.
Wheel clearai.ce criteria4.11.4 Proper clearance (a total of approximately 3/4" to 1" wider than rail head) shall be No additional criteria No clearance are satisfied,provided between the wheel flanges and rail head. Tapered tread wheels for bridges ..'ay specified.have a clearance over the rail head of 150% of the clearance provided for straight tread Complieswheels as recommended by the crane manufacturer.
4.11.5 When rotating axles are used, wheels shall be mounted on the axle with a press fit akme, gio additional criteria Requires press, tapered- Rotating axle, key mounted,press fit and keys, or with keys alone. All wheels shall have sufficient hub thickness to drawn, or keyed fit. Compliespermit the use of keys.
4.12 (DtNPERS AND STOPS fio additional criteria Not addressed Bridge bumpers are pro-vided that have the
4.12.1 Budge bumpers-li) A crane shall be provided with bumpers or other automatic means pro- following;viding equivalent effect, unless the crane is not operated near the ends of bridge and trolley (a) man. deceleration oftravel, or is restricted to a limited $ stance by the nature of the crane operation and there is no less than 1 ft/sec2hazard of striking any object in this limited distance, or is used in similar operating conditions. U" *The bumpers shall be capable of stopping the crane (not including the hf ted load) at an averagerate of deceleration not to exceed 3 ft/s/s when travehng in either direction at 20 percent of in 1/3 of bumper travelthe rated load speed. from 40% speed.(A) The bumpers shall have sufficient energy absorbing capacity to stop the crane when (c) Bumpers mounted so boltstravehng at a speed of at least 40 percent of rated load speed. are not in shear.(B) The bumper shall be so mounted that there is no direct shear on bolts. (d) safety cables used to
hold bumper if it(ii) Bumpers shall be so designed and installed as to minimize parts falling from the crane in s.nm ca
_ _ _ _ _ _ _ _ _ _ .
I| ANSI-B30>2 CRYST 8' 51VER 3CMAA-70 SPECIFICATIONS 19?6 (SECT 2-1) EOCl 61 FUELBAh ;C BUILDING
CRANE- -
4.* .1.1 Bridge bumpers shah be rigidly mounted in such a manner that the attaching bolts are flo additional criteria Not addressed Bridge bumpers mountednot in shear and they shall be designed and installed 16 minimize parts f alling from the 50 bolts are not inuane in case of breakage. Shear. Compiles
a----24.12.1.2 Bumpers shall be of sufficient length that no part of either crane will be damaged when N/A N/A N/A
two cranes come together and the bumpers are fully compressed.
4.12.1.3 Heights of bridge bumpers above the runway rail shall be as specified by the crane fio additional Criteria Not addressed U rgaregnstall{ doneYaY a N
I4.12.2.1 Runway stops shall be provided by the purchaser and shall be located at the limits of the flo additional criteria Same as CMAA-70 Compliesbridge travel.
ouvryersinstaiieagoserverung g; ge4.122.2 Punway stops shall be attached to resist the force apphed when contacted. flo additional criteria Not addressedomoiIes
4.12.2.3 Runway stops engaging the tread of the wheel are not recommended. flo additional criteria Not addressed Bumpers do not engagewheels. Complies
4.12 3 Trolley bumpers-til A trolley shall be provided with bumpers or other automatic means of f!o additional Criteria Not addressed Trolley bumpers are notequivalent of fact, unless the trolley is not operated near the ends of bridge and trolley travel, or installed; wheel stops areis restricted to a hmited distance of the runway and there is no hazard of striking any object in used at end of trolleythis limited distance, or is used in similar operating conditions. The bumpers shall be capable of travel. Further evalua-stopping the trolley (not including the lifted load) at an average rate of deceleration not to tions should be performedexceed 4 7 ft/s/s when traveling in either direction at one third of the rated load speed. to evaluate alternatives.(n) When more than one trolley is operated on the same bridge, each shall be equipped with (See Section 1.3 of repor$bumpers or equivalent on their adjacent ends.ini) Bumpers or equivalent shall be designed and installed to minimize parts fathng from thetrolley in case of age. Also apphed to wood, rubber, polyurethane, etc. bumpers. ,
24.12.3.1 When more than one trolley is operated on the same bridge, each shall be equipped with N/A N/A N/A
bumpers on adjacent ends and they shall Le of sufficient length that no part of eithertrolley will be damaged when two trolleys come together and the bumpers are fullycompressed.
4.12.3.2 Bumpers shall be rigidly mounted in such a manner that the attaching bolts are not in flo additional criteria Not addressed Bumpers not installed onshear and they shall be designed and installed to minimize parts falling from the crane in trolley (See 4.12.3 above)case of breakage.
270s5 ELECTRICAL EQUIPMENT N/A N/A N/A
5.1 GENERAL
52 MOTORS ALTERNATING CURRENT AND DIRECT CURRENT
5.3 MOTOR BRAKES ALTERNATING AND DIRECT CURRENT,
i
' 5.4 CONTROLLERS. ALTERNATING AND DIRECT CURRENT-
- - - - - - - - - - - - - - - - - - - - - - -
!MAA-70 SPECIflCAT10NS ~ ~ ~ 1916 (SECT 2-II EOCl 61 FUEL MANDLI. AILDING. .. ---
CRANE
L RESISTORS No additiv 21 criteria Same as CMAA-70 for N/A (Mechanical loadClass A, B, and C brakes are used).b.5.1 Resistors (except those in permanent sections) shall have a thermal capacity of not less cranes.
than Class 150 series for CMAA crane service classes A, B and C and not less than Class160 series for CMAA service classes D and E.
5.5.2 R sistors used with power electrical braking systems on hoists not equipped with No additional criteria Not addressed Brakes of this typemechanical load brakes shall have a thermal capacity of not less than Class 160 series.are not used.
5.5.'l RIsistors shall be designed with the proper first point stalled torque as required by the N/Acontrol system used.
b.5.4 Resistors shall be installed with adequate ventilation, and with proper supports to N R s r a tNo additional criteria Not specificallywithstand vibration.addressed $rakinaisuseb
5 PROTECTION fio additional criteria Requires pendant con- ECCI more restrictive.5.6.2 Cranes not equipped with spring return controllers, or momentary contact pushbuttons, trollers to be spring Controllers are spring
returned to the "off" return to the "off"shall be provided with a device which will disconnect all motors from the bne on failureposition. position.cf power and will not pe<mit any motor to be restarted until the controller handle is
brought to the ''OFF" position, or a reset switch or. button is operated. Complies5.6 5 Overload relays shall be provided for each motor either as a function of each control or :No additional criteria N/A N/A 2
by an enclosed protective panel. Overloads are required in two phases of A. C. mottws D..
C. cranes require one inverse time element overload for each motor.
b.6 6 A line contactor shall be provided with each motor control of D. C. CMAA Service2Clisses A1, C, D and E cab operated cranes. N/A N/A N/A
B.6.7 On remote radio cranes, if the contros signal for any crane motion becomes ineffective,that motion shall stop.
B.6.B On remote radio cranes, purchaser shall specify if other radio equipment is operating orplanned as future installation in the vicinity where the crane will operate.
36.9 On automatic cranes, all motions shall fait safe if any malfunction of operation occurs. No additional criteria Not addressed N/A Crane is notautomatic
B.6.10 Electrical safety features shall be in accordance y ith the ANSI B30.2 Safety Code. Compliance with B30.2 isSame Not addressed addressed by this
evaluation2CAB MASTER SWITCHES fio additional criteria N/A N/A
The arrangement of cab master switches, or their operating handles, and the resultant directioncf book rr:overrent shall be as shown in Sketch 5.7.
~
9
EFEJU.Z CRYSTAL PMR 3 'CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) EOCl 61 FUEL NMDL CILDING .CRANt
8 FLOOR OPERATED PENDANT PUSHBUTTON STATIONS No additional criteria Not addressed Complies. See opera-Unless otherwiw specified the arrangement of a pendant pushbutton station if in a vertical tions and maintenance5 8.1
manual furnished byhne should read from top to bottom: Stop start, Up Down (Main Hoist) (Aum. Hosst); Whiting.Reght Lett (Trolley), Forward Reverse (Bridge).
i5 8.2 when start stop pushbuttons are arranged horizontally, start should be on the lef t, and No additional criteria Not addressed N/A (Controls are {stop should be on the right.
located vertically) a
5.8.3 Stop pushbuttons shall be red,f!et spect fied Not specified
Tha trolley and bridge direction markings may be right, lef t, forward, reverse or compass vi d by E !ina.en manu ro-5.8 4
directions, as appbcable, or as specified.2N/A N/A N/A
5.8.5 Pindant pushbutton station shall have a grounding conductor between a ground terminalin the station and the crane.
5.8 6P2ndant pushbutton stations shall be supported to protect the electrical conductors against No additional criteria Not addressed Crane control has cable tostran. support pendant.
Complies5.8.7 Pendant pushbuttons shall be spring return to off. No additional criteria Same as CMAA-70 Complies I
5.8.8 The maximum voltage in pendant pushbutton stations shall be 150 volts A. C. or 300Volts D. C. N/A N/A N/A
#
9 HOIST LIMIT SWITCHfio additional criteria Same as CMAA-70 IComplies5 9.1 The hoist limit switch shall limit the upward travel of the load block by terrowing power
from the motor and applying the hold ng brake. The hmit switch shall be either powercircuit or control circuit type. A power circuit limit switch shall interrupt the hoist motorpower circuit directly. A control circuit hmit switch shall indirectly open the hoist motorpower circuit through a contactor in its control circuit.
5.9 2 Intstruption of the hoisting motion shall not interfere with the lowering motion. Loweringof the block shall automatically reset the limit switch.
5.9.3 The crane manufacturer shall state whether the hoist limit switch will be power circuit or2control circuit type. N/A N/A N/A
10 INSTALLAllON
A10.1 Electrical equipment shall be so located or enclosed to prevent the operator fromaccidental contact with live parts under normal operating conditions. ,
.s
5.10.2 Electrical equipment shall be installed in accessible locations and protected from dirt. No additional criteria Hot addressed Equipment is accessible,
grzase oil and moisture, as required.and protected.Complies
B.10.3 Hut shields shal. be provided when requested by purchaser to protect control panels.2racbways, etc., in areas of high radiant heat. N/A N/A N/A
.
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_ -____-- . _ _ . - . _ - - _ - . - - _ _ _ _ _ _ _
,
OVERHEAD CRANE EVALUATION
,
Location: Crystal River
Crane: Reactor Building Containment Vessel
Type: Polar
,,
Rating (Main / Aux Hoist): Main - 180 tons Auxiliary - 30 tons
Manufacturer: Whiting
Hoist Speed: Main - 4 fpm, Auxiliary - 20 fpm
Trolley Speed: 40 fpm
Bridge Speed: 75 fpm
Design Criteria: E0CI-61 and Gilbert Associaties Specifications
Evaluation Criteria: CMAA-70-1975 and ANSI B30.2-1976
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
CRYSIAL RMR 3j ' ANSI-B30.2 EOCl 61 REACTOR ''LDlHG
C -70 SPECiflCATIONS IN6 (SECT 2-1) POLAR s..,JiE
INo additional criteria Same as CMAA-70 Complies
.2 CUILDING DESIGN CONSIDERATIONS
fio additional criteria Requires 6" for wide Drawing V-62220 in.3 CLE ARANCE buildings Operation and Maintenance
Manual shows 16" required1.3.1 in the case of narrow width buildings where truss sag may be ignored, a minimum clearance of Clearance.
3 inches between the highest point of the crar:e and the lowest overhead obstructeon shall beprovided For weder buildmgs where truss seg becomes a factor, this clearance should be Compliesincreased.
1.3.2 The clearance beteveen the end of the crane and the building columns linee braces or any other No addittonal criteria Same as CMAA-70 Minimum side clearanceis 12".
obstructions shall be not less than 2 inches with crane centered on runway rails. For widebuildings or where heavy capacity cranes are used, not less than 3 inches clearance should be Compilesprovided. Pipes, conduits, etc. must not reduce this clearance.
1.3.3 The accuracy of building dimensions shall be the responsibility of the purchaser. Not addressed Not addressed N/A to preventing aload drop
l.4 RUNZAY flo additional criteria Same as CMAA-70 Complies 3
1.4.1 The crane runway, runway rails, and crane stops shall be furnished by the purchaserunless otherwise specified. The crane stops furnished by the purchaser shall be designed tosuit the specific crane to be installed.
1.4.2 The runway rails shall be straight, parallel, level, and at the same elevation. The distance Crane runways and sup- Same as CMAA-70 except Complies
center to center and the elevation es specified by the purchaser to the crane manufacturer porting structures de- EOCI-61 requires exact
shall be within a tolerance of plus or minus 1/8". The runway rails should be standard signed to withstand distance center to (E0CI is more restrictive)loads imposed by the center.rail sections of a proper size for the crane to be installed and must be provided with crane. Runway columns
proper rail splices. Floating rails are not recommended. anchored to foundation.I
1.4.3 The crane runway shall be designed with sufficient strength and rigidity to prevent detrimental Structure free frora Same as CMAA-70 Compilesdetrimental vibration.laterat or vertical deflecte.
I1.5 f.UNOAY CONDUCTORS No additional criteria Same as CMAA-70 Complies
y_ _ _
Rated load to be marked Same as CMAA-10 :omplies1.6 RATED CAPACITY on the crane.
INo additional criteria Same as CMAA-70 :ompiles
1.7 DESIGN STRESSES
1.7.1 Materials shall be properly selected for the stresses to which they will be subjected. Loadcarrying parts, except structural members and hoistmg ropes and gearing. shall be designed sothat the calculated static stress in the material, based on rated load, shall not exceed 20% of thepublished average ultimate strength of the material. This limitation of stress provides a marginof strength to allow for variations in the properties of materials, manuf acturing and operatingconditions, and design assumptions, and under no condition should imply authorization orprotection for users loadmg the crano beyond rated capacity. Structural members shall bedesigned m accordance with the data given in Section 70 3. Hoisting ropes shall be in accord-ance with Paragraph 4.2.
m , ,.
__
- _ _ _ _ _ _ - _ _ _ _ - _ _ _ -____ _ - _ - __ ___. _ , __
CMAA-70 SPECIFICAll0NS .976 (SECT 2-1) gjI
NE N No additional criteria Same as CMAA-70 Compitast
1.8.1 All apparatus covered by this specification shall be constructed in a thorough and '
workrnant.ke manner. Due regard shall be given in the design for safety of operation,cccessibility, interchangeabihty and durability of parts.
1.8.2 This specification includes the safety features of ANSI B30.2.0 Safety Code.#
9 PAINTING N/A N/A N/A
1.9.1 Before shipment, the crane shall be cleaned and painted with the crane manufacturer'ss
sendard paint, unless otherwise specified in the purchaser's inquiry,,
INo additional criteria Same as CMAA-70 Complies
.10 ASSEM"LY AND PREPARATION FOR SHIPMENT
1.10.1 The :rane shall be assembled in the manufacturer's plant unless otherwise stated in theproposal When feasible the trolley shall be placed on the girders. but it is unnecessary toreeve the hoist blocks. The crane shall be taken apart only to the extent necessary forshipment and all parts shall be carefully match marked. All exposed finished parts andtiectrical equipment shall be properly protected for shipment, if outside storage isenticipated, the purchaser shall make arrangements with the manufacturer if extrapr:tection is required.
Il.11 TESTING l'o additional criteria same as CMAA-70 Complies
1.11.1 Tasting shall be conducted according to the manufacturer's commercial testing procedure.l
1.11.2 Any performance of non<sestructive testing such as X-ray, ultrasonic, magnetic particle,etc., shall be considered as an extra item and will be done only if specified by the purchaser.
2
9.12 DRArlNGS N/A N/A N/A
'1.12.1 Two copies of the manufacturer's clearance diagrams shall be submitted for approval. One
copy shall be approved by the purchaser or his representative and returned to the cranemanufacturer. Two sets of operating instructions and spare parts information shall befumished. Detail drawings shall not be furnished.
1.13 ERECTION No additional criteria Same as CHAA-70 except Spec. 322-C1.1no statement cn protect- Section 3:15 specifies
1.13.1 The crane shall be erected (including assembly, field wiring. Installation and starting) by ing crane after receipt protection of the crane,
the purchaser. Supervision of field assembly rney be negotiated separately between the but prior to use,Complies
purchaser and the manufacturer. The purchaser shall protect the crane from the time ofits receipt until it is placed in service. If the crane is used by another contractor prior toacceptanca by the purchaser, the other contractor shall be responsible to the purchaser.
1.14 LUBRICATION Lube points are access. ANSI B30.2 criteria is Whiting Operation and
t p s lube1.14.1 The crane shall be provided with all necessary lubrication fittings. Before putting the f rs rp fo s,'
crane in operation, the purchaser shall lubricate all bearings, gears, etc. in accordance with points.
the crane manufacturer's recommendations. Complies
(
, .
| ANSI-830.2 CRYSTAL RIVER 3 !'
CMAA-70 SPECIFICAT10NS 1976 (SECT 2-1) EOCl 61 REACT 0F ''llDINGPOLS w ANE !
i2 -
1.15 C'ARRANTY N/A N/A N/A
1.15.1 For warranty, refer to the manufacturer's literature or proposal forms.
2.2.1 Class A1 (Standby Service) This comparison performedNot addressed Not addressed to verify compliance with
This service class covers cranes used in installations such as; power houses. public utilities. Class Al requirements inturbine rooms. motor rooms and transformer stations where precise handling of valuable CMAA 70 and ANS 830.2.machsnery at slow speeds with long idle periods between lif ts es requered. Capacsty loads maybe handled for initial installation of machinery and for infrequent maintenance. Complies
,
7053 STRUCTURAL DESIGN Designed and fabricated toEOCI-61 which requires A-7steel. A-7 has minianam
3.1 MATERIAL Not addressed E0CI-61 requires use ultimate of 60 ksi, asof ASTM A-7 steel. compared to A-36 with mint
All structural steel used shall conform to ASTM.A36 specifications or shall be an accepted type sum of 58 ksi. Thereforefor the purpose for which the steel is to be used and for the operations to be performed on it. EOCl criteria are adequate.
Other suitable matwials may be used provided parts we proportioned to give comparable design Gilbert specified use of
factors. A-36 steel. Cranecompiles.
32 C:ELDING AWS D1.1 except as mod- EOCI-61 specifies welding Welding performed inified by AUS D14.1. according to AWS, but no accordance with Whiting
specific standard is shop practices and AWSAll welding design and procedures shall conform to the current issue of AWS D14.1 " Specification referenced. 01.1. See NRC response.for Weldmg Industrial and Mill Cranes" with the exception of Section 706, which shall be in accord.anca with the Crane Manufacturer's standard tolerances for deviation from specified cember andsweep, with all such measurements taken at the manufacturer's plant prior to shipment. .
I3.3 GIRDERS No additional criteria Same as CMAA-70 Complies
(Girders to meet Ct1AA-3.3.1 General yo)
The crane girders shall be rvelded structurel steel bon sections, wide flange beams,standard **l" Beams, reinforced beams, or bom sections fabricated from structural shapes.The manufacturer shall specify the type and construction of the girders to be furnished.
3.3.2 Loadmes
3.3.2.1 Crane girdus shall be proportioned to resist all vertical, latwal and torsional forcescombined as specified in Section 3.3.2.2 and as defined below:
3.3.2.1.1 Vertical Forces
3.3.2.1.1.1 Dead Load: The weight of all effective parts of the bridge structure, the machineryparts, and the fixed equipment supported by the structure.
3.3 2.1.1.2 Live Load: The weight of the trolley and the lifted load trated capacity) shall beconsidered as concentrated moving loads at the wheels and located in such positionsas to produce the maximum rnoment and shew.
CMAA-70 SPECIFICATIONSy m w w .z - W
1976 (SECT 2-1) E0Cl 61 REACE] ''LDING:_ P0lf] s...sdEFor hoistingspeeds of 4 fpe, mainhoist, and 20 fpm auxi-liary hoist, impactallowances of 1% of these
3.3.2.1.1.3 Impact Allowance: speeds is less than the
!For cranes operating on runweys as described in SectH>n 1.4, the No additional criteria Requires minimum 15% of 15% minimum requirement.
impact allowance of the rated capacity shall be taken es %% of the load per foot per rated capacity. Therefore, complies.{ mmute of hoisting speed, but not less than 15% nor more than 50% except for bucket
and magnet cranes for whech the impact value shall be taken as 50% of the rated capacity.
3.3.2.1.2 Lateral ForcesNo additional cr teria Requires a lateral load EOCI 61 is more conserva-
allowance of 5% of the tive than CMAA-70 in this3.3.2.1.2.1 Lateral load due to acceleration or deceleration shall be considered as 2%% of the line load for all cranes. area. Crane is designedlive load and the crane bridge, exclusive of end trucks and end ties for Class A to EOCI 61; therefore,cranes, 5% for crane Classes B, C and D and as 10% for Class E cranes. The live complies.Road shall be considered as a concentrated load, located in the same position aswhen calculating the vertical rnoment. The lateral moment shall be equally dividedbetween the two girders and the moment of inertia of the entire girder sectionabout its vertical axis shall be used to determine the stresses due to the lateralforces.
3.3.2.1.2.2 Lateral load due to wind shall be considered as 5 pounds per square foot of No additional criteria Requires lateral load of Wind load not applicableprojected area. The wind load on the trolley shall be considered as equally divided 10 PSF on projected area to this crane,between the two girders. Where anultiple surfaces are exposed to the wind, such as -
bridge girders where the horizontal distance between surfaces is greater than thedepth of a girder, a wind area shall be considered to be 1.6 times the projected areaof one girder. For single surfaces, such as cabs or machinery enclosures, a projectedarea shall be considered to be 1.2 times the projected area to account for negativepressure on the for side of the enclosure.
3.3.2.1.3 Torsional Forces
3.3.2.1.3.1 The twisting moment due to starting and stopping of the bridge motor shall be INo additional criteria Same as CMAA-70 Compilesconsidered as the starting torque of the bridge motor at 200% of full load torquemultipned by the gear ratio between the motor and the cross shaft.
3.3.2.1.3.2 The twisting moments due to overhanging loads on the side of the girder shall be No additional criteria Requires distance to be Loads do not overhang.taken as their respective weipts multiphed by the horizontal distances between the center of load to center Girders are box construc-respective centers of gravity and the sheer center of the girder section. of gravity of girder, tion. Therefore,complies.3.3 2.1.3.3 The twist;ng moments due to lateral forces acting ecrentric to the horizontal neutral
Ho additional criteria Requires distance to be Box girder is symetricalaxis of the girder shall be considered as those forces multiplied bf the verticalbetween centerline of about neutral axis;distance between the center line of force and the st. ear center of the girder. force and center of therefore, shear centergravity of girder rather and center of gravitythan to shear center of are essentially identical.girder. Therefore the crane
compiles.
_______ - - _- - --
CMAA40 SPECIFICAIl0NS'
976 (SECT 2-1) E0Cl 61 REACLJ 'I. DING
POLO U E132.2 The cornbined bending streu shril be taksn as the larger of the following two design fio additional critsria 5tme as CMAA-70 Comp 11:s I
cases, including a wind load of 5 pounds per square foot for outdoor cranes:
L3 2.2.1 The sum of the maximum stresses due to dead load, weight of trolley, rated loadand impact allowance.
L3.2.2.2 The sum of the maximum stresses due to osed load, weight of trolley, rated loadand lateral forces.
3.2.3 The combined shear stress shall be taken as the sum of the maximum shear due to No additional criteria Same as CMAA-70 Complies Idead load, weight of trolley, rated load, impact allowance and net twisting moment.
L3.3 DESIGN LIMITATIONSNo additional criterta Requires also that auximum EOCI 61 more conserva- k
3 3.3.1 t*!elded Box Girders. stress be 20% of ultimate. tive than CMAA 70. -
Therefore craneWelded box girders shall " e fabricated of structural steel with continuous longitudinal complies.u
welds running the full length of the girder. All welds shall be ample to develop the beamsection for the maximum shear and tending.
3.3.3.1.1 Proportions No additional criteria Pequires: 1/b455 1/b= 1480/27"=54.8 4 601/h should not exceed 25
b/c= 27"/2" =13.5 4601/b should not exceed 60 ( t
b/c should not exceed 60 spectfled) 1/h= 1480/110*=13.45< 25Complies
The h/t ratio of the web plate, when provided with transverse stiffeners or flo additional criteriadiaphragms as specified in Section 3.3.3.1.5 is limited by the use of longitudinal E0Cl requires h/t< 240 t = 5/16" = .3125"stiffeners, as follows: h = 110"
or k = 1.0 (girder isThe h/t ratio of the web shall not exceed:
h/t(85(k+1)}}6000' t nh E nor shall it exceed M c c = 162C(k+ 1)=
i f M = 376c whichever is less.f = 12.4 (footnote 3)c
Where: The coefficients C and M are as tabulated below:
Longitudinal stiffeners C M " * *' ""f4one 81 188' c(k+1)One 162 376 f
,
Two 243 564 c
* For other values of M at reducea weu levels, see the following table. 162 (1+1) = 386Max h/t for 16.3 ksi compression stress 188*Man h/t for 12.0 ksi comprenion stres - 220Man h/t for 10.0 or less compreuion Additionally h/t should
be less than M= 376streu - 240Where:
1 - Span in inches Actual h/t=5 * 30b Distance between web plates in inches=
Therefore crane compilesTheckness of top cover plate in inchesc =
f, Maximum compreuive streu (k.s.i.)=
f, Maximum tensile stress (k.s.l.)=
Depth of web in inchesh =
f /fk = g cThickness of web in inchest -
- .
I CRYSTAL.BlVER 3ANSI-830.2 EOCl 61 REACTOR LDINGCMAA-70 SPECIFICATIONS 1976 (SECT 2-1)
P01.AR UnANE
Ihe longitudinal stiffeneris located .44 times the
3.3.3.1.2 Longitudinal Stiffeners Not addressed Not addressed distance from the neutralaxis to the bottom of the
3.3.3.1.2.1 When one longitudinal stiffener is used it shall be placed so that its centerline is 0.4 :ompression flange.times the distance from the inner surface of the compression flange plate to theneutral axis. It shail have a moment of inertia no less than: [he moment of inertia was
:alculated to be
0.4 + 0.6 f + 0.9 2+ 8 h:3 ;,,4 nl 1.2=o
3CompliesIf f is greater than fg, a distance equal to twice the distance from the inner surf acecof the compression flange to the neutral axis shall be substituted in place of **h" inequation for Io.
3.33.1.2.2 When two longitudinal stiffeners are used they shall be placed so that their Not addressed Not addressed Criterion not applicablecenterlines are 0 25 and 0.55 times the distance, respectively, from the inner surface to this crane. Craneof the compression flange plate to the neutral axis. They shall each have a moment has one stiffener inof inertia no less than: the conpression region.
3, ;,,4 @0.3 + 0.4 { + 1. 2+ 14 ht1.2I =
o
if f is s. eater than fg a distance equal to twice the distance from the inner surfacecof the compression flange to the neutral axis shall be substituted in place of **h" inequation for Io.
Where:
a - The longitudinal distance between full depth diaphragms or transverse stiffenersin inches.
A,= Area of one longitudinal stiffener in square inches.
3.3.3.1.2.3 The moment of inertia of longitudinal stiffeners welded to one side of a plate shall flot addressed Not addressed Moment of inertia calculafrbe calculated about the interface of the plate adjacent to the stiffener. ed above was determined
about the interface ofFor elements of the stiffeners supported along one edge, the maximum width to the plate with the stif-thickness ratio shall not be greater than 12, and for elements supported along both fener. Stiffener is
edges, the maximum width to thickness ratio shall not be greater than 38. If the supported along bothratio of 12 is exceeded for the element of the stiffener supported along one edge, edges and has a width to
thickness ratio of 28.3.but a portion of the stiffener element conforms to the maximum width-thicknessratio and anects the stress requirements with the excess considered as removed, the Compliesmember will be acceptable.
__
' INE (SECT Z-1) EDEI El utmluu nLJ---POLAR L,,edE
3.3 3.1.3 Basic Allowable Stresses No additional critcria Requires maximum E0Cl 61 is sore constrva-tensile stress of tive. Therefore,
Tensson = 17.6 ksi 16.0 kst complies.
Compress.on = 17.6 ksi when the ratio of b/c is equal to or less than 38. No additional criteria Requires maxisum com- EOCI 61 is more conserva-pressive stress of 16.0 tive in this requirement
When the ratio of b/c excecds 38, the allowable ccmpressive stress ksi. For b/c ratios than CMAA-70. Therefore,shall be computed from the following formula: exceeding 41, the allow- complies. |
able compressive stressin the top flange is (b = 27 = 13.5( 38)reduced. c T~g3
,
b/c
11.0 ksi40: fc - 16.3 ksi b/c 52: Icb/c ===
56: fc = 9 8 ksi14.1 ksi b/c44: fcb/c ===
8.9 ksi60: fc12.4 ksi b/c48: fcb/c ====
Maximum shear is 12.0 ks' EOCI 61 is more conserva-Shear = 13.2 ksi No additional criteria tive. Therefore, complies
Bearing = 26.4 ksi on plates in contact No additional criteria Bearing stress not spect Complies since E0CI isfically addressed. more conservative.
Allowable Stress Range . Repeated Loads: No additional criteria Stress range for repeat- This crane is designeded loads not addressed. to EOCl 61 which limits
Members and fasteners subject to repeated load shall be designed so that the stresses to 16.0 ksi.maximum strvss does not exceed that shown above, nor shall the stress range Since there is no pre-imaximum stress minus minimum stress) exceed allowable values for various stressing of componentscategories as listed in table 3.3.3.1.3 1. The minimum stress is considered as negative and no reversal of stressif it is opposite in sign to the maximum stress. The categories are described in when load is applied, theSection 3.10 with sketches included. The allowable stress range is to be based on crane design stresses arethe condition most nearly approximated by the description and sketch. less than CMAA-70.
Therefore, complies.
'TABLE 3.3.3.1.3-1
Allowable Stress Range. F , - ksi'
Crane Service Classification
A and B | C and D | E | F
Category Number of Loading Cycles
20.000 to 100.000 o 500.000 to Over
100.000 500.000 2.000.000 2.000,000
A 40 32 248 33 25 17
C 28 21 14 Steel MillD 24 17 10 ServiceE 17 12 7 A . I .S. E .F 17 14 11 Sp,c,G 15 12 9
.
. = _ _ _ _ . . . .
.. . .
_
IANSI-830.2 CRYSTAL "'VER 3
EOCl 61 REACT] .LDillCCMAA-70 SPECIFICAll0NS 1976 (SECT 2-1)P01.AR CRANE
3.3.3.1.4 Stiffened Plates in Compression: No additional criteria Not addressed. Not applicable. Discrane has no Ngi-
When one, two or three longitudinal stiffeners are added to a plate under uniform tudinal stifsenerscompression, dividing it into segments having equal unsupported widths, full edge added to the compressionsupport will be provided by the longitudinal stiffeners, and the provisions of Section plate.3.3.3.1.3 may be applied to the design of the plate material when stiffeners meetminimum requirements as follows:
3.3.3.1.4.1 For one longitudinal stiffener at the center of the compression plate, where b/2 isthe unsupported half width between web and stiffener, the moment of inertia ofthe stiffener shall be no less than:
2 3 in.40.6 f + 0.2l + 3.0 bt=a
The moment of inertia need not be greater in any case than as given by thefollowing equation:
32.2 + 10.3 1+ bt ;o,4I =o
3.3.3.1.4.2 For two longitudinal stiffeners at the third points of the compression flange, whereb/3 is the unsupported width, and A the area of one stiffener, the moment ofsinertia of each of the two stiffeners shall be no less than:
2 3 - in.40.4 f + 0.8l + 8.0 bt=o
The moment of inertia need not be greater in any case than:
3, ;o,4l 9 + 56 + 90 bt=a
3.3.3.1.4.3 For three longitudinal stif feners, spaced equidistant at the one fourth width locationswhere b/4 is the unsupported width, and limited to a/b less than three, the momentof inertia of each of the three stilfeners shall be no less than:
0.35 h + 1.10 2+ 12 bs3, ;,,4I, =
Where: a = The longitudinal distance between diaphragms or transversestiffeners - in.
As= The area of the stiffener - sq. in.t = The thickness of the stiffened plate - in.
I
! 3.3.3 1.4.4 Stiffeners shall be designed to the provisions of Section 3.3 3.1.2.3.|
CRYSTAL RIVER 3| ANSI-830.2
CMAA-70 SPECIFICAil0NS 1976 (SECT 2-1)EOCl 61 REACEO 'lLDING
POEl JE
No additional criteria Requires closer spacing E0CI is more conservative,3 3.3, f 5 Diaptwagms and Vertecal Steffeners for same stress levels Therefore, co<npiles.
compared to CMAA-70.333.1.5.1 The spacmg of the vertical web stiffeners in inches shall not exceed the amount
given by the formula:
350 ta =
.
Thickness of web in inchesWhere: t =
v= Shear stress in web plates (k.s.i.)3
Not shall the spacing exceed 72 inches or h. the depth of the web, whichever is flo additional criteria Some as CMAA-70 Complies
greater.Ifio additional criteria Same as CHAA-70 Complies
3.3.3.1.5 2 Full depth diaphragms may be included as vertical web stif feners toward meetingthis requirement.
3.3.3.1.5.3 The anoment of inertia of any transverse stiffener about the interface of the web No additional criteria Not addressed Does not apply to thiscrane since full depth
plate, if used in the absence of diaphragms, shall be no less than: diaphragms are used in3 3 the welded box girders.1.2 h t ;,,4o, ,
So
The required distance between stiffeners in.Where: s -oThe minirnum required web thickness - in.t -o
Stiffener elements shall be poportioned to the provisions of Section 3.3.3.1.2.3..
3.3.3.1.5.4 Web plates shall be suitably reinforced with full depth diaphragms or stiffeners at all No additional criteria Same as CMAA-70 Complies I
major load points.
tio additfonal criteria Requires Diaphragm plate EOCI 61 more conservative.3.3.3.1.5.5 All diaphragms shall bear against the top cover plate and shall be welded to the web adequate to transfer load Therefore, compiles.'
plates. The thickness of the diaphragm plate shall be sufficient to resist the trolley to web with maximum ofwheel load in bearing at 26.4 ksi, on the assumption that the wheef load is 16.0 ksi compressive &distributed over a distance aquel to the width of the rail base plus twice the 12.0 ksi shear stress.distance from the rail base to the top of the diaphragm plate.
3.3.3.1.5.6 Short diaphragms shall be placed between full depth diaphragms so that the maximum No additional criteria formula is same as Complies ICMAA-70, only in
distance between adjacent diaphragms will limit the maximum bending stress in the dif ferent form.trolley rail without irnpact to 18.0 ksi based on:
18.0 ksi = It'olley wheel load) (distance between diaphragms)6 (section anodulus of raill
I3.3.3.1.6 Deflection and Camber flo additional criteria Same as CMAP-70 Complies
3.3.3.1.6.1 The maximum vertical deflection of the girder produced by the dead load, the,
weight of the trolley and the rated load shall not exceed .00125** per inch of span.impact shall not be considered in determining deflection.
3.3.3.1.6.2 Gwders shall be cambered an amount equal to the dead load deflection plus one halfthe hve load deflection, e
CMAA-70 SPECIFICAll0NS 1976 (SECT 2-1) EOCl 61 I REACT ] [ ") LNGPOLAR Ck:WE
3.3.3.2 Welded Torsion Box Girders: N/A N/A N/A
3.3 3.3 Single Web Girders
3 3.3 4 Bon Section Girders Built of Two Beams
3.4 BRIDGE END TRUCKS No additional criteria in addition to CMAA-70 Double flanged wheelsrequirements. E0Cl 61 are provided. E0Cl 61
3.4.1 The crane bridge shall be carried on end trucks of ample size to carry the rated load requires double flanged more Conservative.when lifted at one end of the crane bridge. The wheel base of the end truck shall be 1/7 wheels.~
Compliesof the span or greater.
3.4.2 End trucks may be of the rotating axle or fixed axle type as specified by the crane No additional criteria Same as CHAA-70 Complies Imanufacturer.
3.4.3 The bridge end trucks shall be constructed of structural steel providing a rigid structure. Provisions should be Does not specify the Overturn lock support pre-
Provision shall be made to prevent a drop of more than one inch in case of axle f ailure. made to limit drop of allowable vertical vents truck from dropping
Substantial guards shall be provided in front of each outside wheel and shall project below the trolley and bridge stresses for bridge more than 1".trucks to one (1) inch end trucks. Max. Tension = 10.5 ksitop of the runway rail. in case of wheel or axle Max. Compr. = 10.5 ksifailure-
Allowable vertical stresses without impact: Max. Shear = 8.1 ksi
Tension = 14.4 ksi Crane compiles 3Comp.ession = 14.4 ksiShear = 10.8 ksi
For Class D and E cranes, consideration should be given to impact loading and repeatedduty cycle.
23.5 FOOTCALKS AND HANDRAILS N/A N/A N/A
3.6 OPERATOR'S CAB fl/A N/A N/A '
No additional criteria Does not permit use of Frame is welded steelductile iron; other- plate. Compiles
The tr:Iley ita ne shall be welded steel, cast steel, or ductile iron construction or a combination thereof. $ *
11 sh ll be of rigid mnstruction designed to transmit the load to the bridge rails without undue deflec.tion. Provisions should be made to prevent a drop of more than one inch in case of axle f ailure.
Allowable vertical stresses, without impact (steel) Provisions should be Does not specify verti- Clearance under trolleymade to limit drop of cal stress limits for is 11". Overturn locks
Tsnsion = 14.4 ksi trolley to one inch the trolley frame. prevent greater than 1"Compression = 14.4 kai when the ratio of b/c is equal to or less than 38 in case of wheel or drop of trolley in case
axle failure. of wheel or axleWhen the ratio b/c exceeds 38, the allowable compressive stress is to be failure.proportioned from the values shown in Section 3.3.3.1.3 in the ratio of 14.4 +17.6 Max. Tension = 12.9 ksi
Max. Compr. = 12.9 ksiShear = 10.8 ksi Max. Shear = 8.0 ksiFor Class D and E cranes, consideration should be given to impact loading and repeated duty 3
,
cycle. Compiles
..
] ANSI-830.2 CRYSTAL ENER 3CMAA-70 SPEClflCATIONS 1976 (SECT 2-1) EOCl 61 REAC O LDING
POLO CNANE
3.8 RAILS (N/A)No additional criteria (N/A) 2
Bridge rail failure will notresult in a load. drop.
3.9 GANTRY CRANES Therefore. complies.
No additional criteria Gantry cranes not N/A (Crane is not aDesign of leg. end tie, strut, and sill rnernbers shall conform to apphcable sectio.'s of the current addressed in E0CI. gantry type)edition of the Manual of Steel Construction as pubhshed by the Americari institute of StaelConst'uction, at a unit stress proportioned to that used for girder design in Section 3.3.3.1 ofthe C.M.A.A. Specification.
4.1 LOAD BLOCKS
No additional criteria Allows only forged Block frame is welded and4.1.1 The load block frames shall be of steel construction. The hook shall be of rolled steel. steel for the hook. bolted steel; hook is
forged steel or a certified material, supported on a ball or roller thrust bearing. The hook 9yh 0 ('shall rotate freely on this bearing.
Complies4.2 HOISTING ROPES
Rope end shall be Does not include weight Main hoist rope has a4.2.1 The hoisting ropes shall be of proper design and constructi've for crane service. The rated anchored by a clamp to of bottom block. safety factor of 5.6:1
capacity load plus the bottom block divided by the nurnber of parts of rope shall not the drum. and a tr e hasexceed 20% of the published breaking strength of the rope.
5.14: , when weight ofload t: lock is considered.4.2.2 The cable construction shall be as specified by the crane manufacturer. When extra strength
steel or wire center rope is used the crane manufacturers specifications shall so state.Comp)les
4.3 SHEAVES No additional criteria Requires steel or cast Sheaves are cast iron.iron. Class 4u.4.3.1 The sheaves shall be steel or minimum ASTM grade A48 64, or later, Class 40 cast iron
or equal as specified by the crane manufacturer. Complies
4.3.2 The pitch rb neter of the running si. eaves shall be not less than 24 times the rope No additional criteria Same as CMAA-70 Complies Idiameter when 6x37 rope is furnished or 30 times the rope diameter when 6x19 rope isfurnished.
4.3.3 The pitch diameter of idler sheaves shall be not less than one half of the diameter of No additional criteria Same as CHAA-70 Complies Irunning sheaves.
4.3.4 When special clearance and lift or low headroom is required, it may be necessary to No additional criteria Same as CMAA-70 Complies Ideviate from these limitations.
O.4 DRUMNo additional criteria Requires use of high Drum is centrifugally
4.4.1 The drum shall be steel or minimum ASTM Grade A48 64 or later, Class 40 cast iron or grade cast iron or cast steel tube.equal material.equal material as specified by the crane manufacturer. It shall be designed to withstand
combined crushing and bending loads. Compiles
4.4.2 The drum shall be so designed that not less than two complete wraps of hoisting ropeNo additional criteria Same as CMAA-70 Complieswill remain in the grooves when the hook is at the lowest position for the lift specified ,
and not reqcire overlapping of the rope when the hook is at its highest point. ,s
.
CMAA-10 SPECIFICAll0NS 1976 (SECT 2-1)NF'I REACT 0. .dlLDING
POLO CRANE
4.4.3 Drum grooves shall be machined. Grooving shah be right and lef t hand unless otherwise No addit ional c ri te-ria Saane as CMAA-70 CompIt:sspecifeed by the crane manufacturer.
4.4.3.1 Recommended minimum drum groove depth is 3/8 x rope diameter- No additional criteria No specific depth or Nin hoist and aux,pitch criteria specified. hoist drum groove
4.4.3.2 Recommended minimum drum groove pitch is either 1.14 x tope diameter or rope depth and pitch satisfydiameter + 1/8 inch, whichever is smaller. CMAA criteria. Complies 34.4.4 The pitch diameter of the drum shall be not less than 24 times the rope diameter when No additional criteria Same as CHAA-70 16 37 rope is furnished or 30 times the rope diameter when 6x19 rope is furnished. co,pjg,3
4.4.5 When special clearana and lift or low headroom is required it may be necessary todeviate from these limiations.
4.5 GEARINGNo additional criteria Same as CMAA-70 Complies '
4.5.1 All gears and pinions shall be constructed of steel or other rnatorial of adequate strengthand durability to meet the requirements for the intended class of service.
4.5.2 The horsepower rating for all spur, hehcal and herringbone gearing shall be based upon No additional criteria Not addressed The following apply toAmerican Gear Manufacturers Association (AGMA) Standards: 220.02, August 1966," Rating the Strength of Spur Gear Teeth **, 210.02, January 1965, '' Surface Durability
the Crystal River reac-tor building polar crane
(Pitting) of Spur Gear Teeth", 221.02 July 1965, " Rating the Strength of Helical andHerringbone Gear Teeth", and 211.02 February 1969, ~~ Surface Durability (Pitting) of Main Holst Aux. HolstHelical and Herringbone Gear Teeth". For the purpose of this specification the power
-
formula may be written: Np 1200 rpm 1200 rpm
F 4.0" 4.0"J .44 .43Allowable Strength Horsepower-S 36,000 psi 36,000pstNdK, p S,, j 8%p
P ,, =126.000 Km Pd b *
and Allowable Durability Horsepower- P 4.0 4.0~ d
N FICv Sacd Ch 2p'
176.000 Cm C C d 3.25 2.75ac c pl
-
K .84 .85v
WhereI .68 .65
P, - allowable strength horsepowerP - allowable durability horsepower C, .715 .735acN - pinion speed - RPMp
C 1.35 13d - pitch diameter of pinion - inches gK, - Dynamic factor (strength)
C .4 .4C, - Dynamic factor (durabihty) cF - Net face width of the narrowest of the mating gears S'C 85,000 85,000K - Load distribution factor (strength)m
C 1*C - Crane Service Factor (durabilitvl (See Table 4.5.2) h*c
C - Lo*d d'stribution factor (durabihty)mC 2300 2300p
I ANSI-830.2 CRYSIAL R'IVW3ChlAA-70 SPECIFICATIONS 1976 (SECT 2-1)
EOCl 61 REACT 0f 1ILDING
POLO SANE
3asedontheabedC - Elassic Coefficientp Main. Aux.Ch - Hardness factor (durability)J - Geometry factor (strength)1 - Geometry f actor (durabilityi P,g 205 h.p. 172 h.p.
Pd - Diametral pitch P 498 h.p. 348 h.p.S,g - Allowable bending stress for material - P.S.l. istrength) aC
S,c - Allowable contact stress number iduratwisty)
The values for K,. C,. Km. Cm C . J, I. S and S,c can be determined from the tablespcad curves in the appropriate AGMA specification previously mentioned, the value for Ccwill be found in table 4.5 2 and the remaining values will be pnysical characteristicspertaining to the gears or their operstmg characteristics.
TABLE 4.5.2
CRANE SERVICE FACTOR
Crane Class
A1 & A2 _B C D E
C .4 .5 .55 .6 .7c
4.5.3 The actual horsepour imposed on the gearing shall be considered as the rated horsepower flo additional criteria Not addressed The reactor buildingcf the motor involved. at its normal time rating multiplied by the factors shown in table crane is Class A1. there4.5.3 for the various classes of crane service. fore the sultiplier is
0.75.
TABLE 4.5.3 Main hoist motor gearingsees 60HPx.75 = 45 HP
Class Mutteplier for AppliedCrane Motor Horsepower Aux. hoist motor gearing
sees 40HP x .75 = 30 HPA1 75%
A2 75% These are well within the *
allowables calculated inD 85% 4.5.2 above. ,
C 90% Crane complies.D 95%
E 100%
,
4.5.4 Chen worm gearing is called for, it shall be rated by the gear manufacturer with No additional criteria Not addreised N/A (no worm gearingappropriate service factors. used)
4.5.5 The type of gearing shall be specified by the crane manufacturer. flo additional criteria Same as CMAA-70 Complies
4.5.6 Means shall be provided to insure adequate and proper lubrication on all gearing. All flo additional criteria Requires oil bath or Gearboxes provided withgrease for high speed oil bath for gear & bear-
gearing except the fmal reduction at the drum or wheels shall run in oil or be splash gearing. ing lubrication. Complieslubricated.
Requires severiceability Lube points are providedflo additional criteria (inspection and lube) on Crane, & acccasible4.5.7 All gearing not enclosed in gear boxes shall be guarded, with provision for lubrication and
ir Section 14. for maintenance.inspection.Complies
_ _ _ _ - _ _ _ -_ _ ____-____ __-_ _____ _ ___
ANSI-830.2 EOCl 61 N '"3
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) REAC. . BUILDING. POLO CRANE
2N/A N/A
4.6 BE ARINGS
4.7 BR AKES See below on hoist Brake torque capacity Compliesholding brakes. addressed specifically for
4.7.1 Brakes will be supplied for the rnotion concerned. and will have rated torque capacities as different type brakes.
specified in the following paragraphs. Brake torque capacities will be based on applicablerated motor torques, both of which will be for the same tirne penod. For multiplernotors the required brake torques will be increased proportionally.
ShI. fi$4.7.2 Bridge Motion N/A N/A N/A paskionh
4.7.3 Trolley Motion 2
4.7.4 Hoist Motion. Holding Brakes in addition, B30.2 re- Sections 4.7.4.2, 4.7.4.3, The holding brakesquires: and 4.7.4.4 of CMAA-70 are are Whiting SESA, one
4.7.4.1 Each independent hoisting unit shall have at least one holding brake. which will be applied not addressed in E0CI 61. each on main & aux.automatically on power removal. This brake will be mounted on the motor shaf t or on a (1) Holding brakes shall Also the two requirements hoists. Main hoist
have a thermal capa- of B30.2 are not addressed. brake has capacity ofshaf t en the hoist gear train,city for the fre- 2101 motor torque;
en o op a ton ax o has capac ty4.7.4.2 Minimum torque ratings of holding brakes, in relation to motor torque, at point of ,
applicasson: service; Holst uses mechanical125% when used with a control braking rneans other than mechanical. (2) The wearing surface control braking.
of aew s.100% when used with a mechanical control braking means. 3
100% for .iach brake if two holding brakes are provided. be free of defectsthat interfere with
4.7.4.3 Whete necessary, hoist holding brakes shall be provided with adjustment to compensate operation, g ,
I ' "''* provided. Complies
4.7.4.4 Each independent hoisting unit of a hot metal crane having power control braking. shall have atleast two holdmg brakes. N/A N/A N/A
_
T ~ANSF830.2EOCl 61CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) REACTOR LDING
| POLO c ANEt
4.7.5 Hoest Motaon. Control Brakes The control braking Same as CHAA-70 except Mechanical control brakeshall have a thermal for the additional provided. See opera-
4.7.5.1 Each independent hoist unit shall aho have control braking means to prevent capacity for the fre- B30.2 requirement on tions and maintenanceover speeding. unless worm gearing with an effeciency suitable to prevent acceleration of quency of operation thermal capacity. eunual provided bythe kad an the lowering direction is used. required by the services Whiting.
4.7.5.2 Control braking may be power, such as eddy current dynamic or countertorque, or may be Compliesmechanical. Either must be capable of maintaining safe lowering speeds of rated loads.
4.s BRIDGE DRIVES 2
4.9 SHAFTS No additional criteria Same as CHAA-70 with Complieslrespect to shafts other
4.9.1 All shafts, extapt the bridge cross shaft sections which do not carry gears, shall be than cross shafts,
machined at bearing and gear fits. Intermediate bridge cross shafts may be commercialshafting. The spacing between bridge crostshaf t bearings shall be as shown in table 4.9.1.
"!^ !^TABLE 4.9.1
a phc'Maximum Spacing Between Line n , g,att Shaft Bearings at Speeds of ing load drops.Diameter 0 to 100 101 to 300 301 to 400
(Inchool RPM RPM RPM
1% 84 8'4 8'-O
2 10'4"* 10'4" 10' 6''*
2% 15'O 15'O 13*03 17'4* 16'4 14'-6"3% 19'O 16'O 15'-6"
4 21'4 16~-0 16'4
When the shaft speed exceeds 400 HPM the bearing spacing shall not exceed thatdetermined by the following formuta, or the Table 4.9.1, whichever is less, in order toavoid objectionable vibration at critical shaft speeds.
4.760.000 m D,
1.2 x NL = Distance between bearing centers - inchoD = Shaf t diameter - inches
Maximum shaft speed - RPM ~N =
.
.
r..
APPEbolX B
SUPPLEMENTAL CALCULATIONS
in performing the comparisc.i of the containment polar crane and the fuelhandling building crane designs to the criteria in CMAA 70-197S and ANSIB30.2- 1976, certain supplemental calculations were required in order to derive
the information necessary to perform the comparisons. This appendix contains
copies of the supplemental calculations that were performed for these evalua-
tions. The results of these calculations have been incorporated into the
comparison sheets of Appendix A and, in many cases, the results have been
included in the NRC submittal. These calculations are provided for Florida
Power Corporation's files to provide a record of the work that was performed in
this siudy.
l
B-1
%TFRA PORPORATION
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PROJECT NO. 7C|L/ PREPARED BY 5 V4 '' C / DATE ->~~'
CONTROL l.D. NO. Io'u-0>t m-V CHECKED BY f /r v d e DATE -
''
-
{k )fuawiL h L |t '.* - Ny\ /) . 'f.-)-),
i
? i I e '.n Le c Ur .* ~ t i''y - t/ = i-4
(o a -c 'T 'Y )q ? c- - .
--
i-
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I1
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(.'..n..
ci-'
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.a
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(f) -.- .c ! y ra t f e r -: (D u r a c i , If)^
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t|
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I= C :- c u .- as * u r c m !r >-c
u,
= .L ~ = ; .I, s i :; aq , I 1"
a-
IJ'-3:':( t.et., t 1. q-~ =
! / /= 3 e .' r ~ 'r: ( 1: 1.t r e :..t,
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wg= 1: > 0 :.* 1 e...3 r.x| it ,h 2=
(sn w .
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SUBJECT O Mk N VS:t t'fiilF1iteSSHEET /d OF SHEETS
'
M f u & i l 's Cr . .,'. E hs :stSI f y-y e.,-n sup)
bI\l PREPARED BY ' '*/'' DATE ' '' -- '
PROJECT NO.'
CONTROL LD. NO. 9 0 '# - 0" 7 - c' o v' CHECKED BY / DATE -'
N s .: : . * I r -e :: $.,ce(i..d-(ss. e .
acl7: le q ' - i w t. E<,--5.
'
f *.k c q *s : i~
.
%!!c s-l
red, el 3 4 w ,; (u . 4 ; .s !) ( .a .a.it ,g ..
.
Iir;f 9,92 7.53
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u, , . .2 G.S:
1
.'inb'c C- 0 (.u.. <- a c: r w ,, - v ...
e e\ 'j si,
1. - r , D. ( - ' ~ fy ?.
l'r r' ;c ' 3 C' I W GCmc
(M U (i6 (, 7 3) (' "; )'
er. c yese 39.8.3 U4 .71 6.c(d a .~70 (il3) (, G 3D ((- C3
e>~c pas.;c- G.LC IS l.| 9 ?Tr
(C.LO) (mol (, 26 (s a r' f'
-) r .. . , , ,q p .w 0 9. G 9t i.ob -7,7 r
(33 8 (91) (,74) d *r>dr :* w f -si c .s ll. 0'e 7 If 3.10- It.Di
(-1 (-T (-S ( ')J r .m gen G 4.o 07 re a 2.q 12.2
ear..;l-) (-l (-) ( ). -
J./ f ,. = t e. ..-
kJ 22 I. T a t e r v ~ nl :. . Il i<
-- _ - - _ -
SUhJECT W |W L fMA 5?5LIEL /JOSHEET /7 OF D* SHEETS
IC\llOl!JG Dir;. c. Dest +v fo;ar ,,p)n
~ ' / ~' ' l' DATE-EON PREPARED BY 'I
PROJECT NO.
CONTROL l D. NO. 7 0 /0' e o 7 - o o </ CHECKED BY d-- ' DATE'
' ' '
Tke \; -../.,. 3 u s hoc ek I w .c a f d } c 4Le Ic w: '
va fue e b &kc LC co Ic u|ahd 5cc 1 !/ g n <!. ! r.. , a .'
iu a .:< . .
TA 8_LE r-3 (I) v v . nc 1J , ., ?- .-<.d oec,.
C IG cs. r- 3 e
p;mse w .IG .Ii ,69w el : -
e
(.t33 (. lo) (. 7'l)w~r LL . b erk e gene .Iy .II .7s'
i
( 10 (. Ic d ( .9E)s,. l e p a c -- . 11 .Ie 77
(. Ih (,10) ( 9 l)a , ~ .-;..$ y , .: .ie .m
(.Ich (. I o) (,l c)dru % p i wiew . 13 .|Dr .9/
(-3 (-) (- Td,a- qar ,1 A . lor .27
(-) ( ) (->~
| rc a ~ t u e z J z , ,- a ; .se G.~ , . .'
.77 (aux.:.-al).
|
SUBJECT CdyffdL rWf M Nt i/ h /Mi g#
SHEET I ls OF ?r SHEETSbla ?!f)6 G 14 fJZ he ~d,,) F wh . . i T o(i rj-
fCl 4 PREPARED BY ' ?/ ' N ~'
DATE /~'
PROJECT NO.-
,'
CONTROL LD. NO. > 0 ' F " V'T - F V CHECKED BY ' DATE'- -
h y~. ..< s . ; e Fat |tw ( 'u v . |; N !j ) - C ,
Fe $ a r- e6 o1 A G '' A R // o a , M !? & T . ;- !c
u Led ho be |c r mi me (. y Cayoc 3 u.. t.:- u: c: ]. .
bo c]l !c r v u a e sja l a es s b. c v ' .s te!rv2 , g) , e i'
r Ctu N$ i m.I
.t C c v s e r J.* * w e va l t< c eh (y". ,
I
p Fe 7/
AI.s ., l'~ i s I /) :. y, A:($'
.
S ' &_r- V G m) b Z(!p-) Cyf F- -, -
Aled o r P. %: es- 74a .M 9VA .72
^
/'< : . .be e 9% .?a 9n , 7a'-
i|, . d < Ee - I90 7a aci ,?.
-r. I9o .Th a c1 .'> -
'O c . . c. P. x, e . (c c 93.
% c u .. G nc (o r .i3
Li ~;} . ,3 vr)ve c } C, .7; +t ,_ ,;., aw) svy,,a,ccs er
(q) Lo) b ; s { r.- M;u FaelerQDuraj,h|,-)-C m
ree w rigare 4' o l A s M M a ll t 1 , Fr i '69.'
1. 3[ ( AM - > - sI a u s . keis|s , i s ' etjut I, . Y '').s t .L =
4
4
w:d4L,elLer e clue /te e s le u / s ; | : - o );
SURJECT CWVM L kl bf d i kftf $ l|/k TEfMSHEET l~7 OF
~
SHEETScliIt bi U6 C*sn! amsl GvAtv.: wtJNEPARED BY 'D '4/ ' v' /* DATE E-
EOliWOJECT NO.
CONTROL ID NO. S 0 / 4'#M e o tl CHECKED BY _ ' ' DATE _
c, js e.,I gJ,.,e; A J c, (y,,.x f ,-), j,, . g(8) P /lo r., jic ,
as t) ) sier % c .n. 4 r a +Cical gcAss o. r- e
use !:w t .rd e- .c- t c Is s , : -'ls a s k + - '.u ,
t~ TABLE s~ of A C A|A a ll :" , f c! '6 4 :
La c _= 8I 0C03
rac.. ( % : .< | r i;|y ) - C;'
(9) lla.r d : c ca
..
6. s ::C; tr k u. u r v : w ,. :- sv .: t - , c ; .,
?'ri.,e I e? S esr), att C :r I, .x ; r:::I. . ldh
'
47 C;4 E e| A$ !'/ a//D; ,ft|'Sf,
Di] ris s '. c 6 esi, e < < ' -c'
P
Y a c- n,,J z:r , n- . <:.. ~! ' : L.'
- -
Ck k$A fh AlI, ?,Ceh b] * N t" 6. ) Uf h c .- $;- t
G f :-2 303
_ _
SUBJECT ' Fr W/S ' I''ilt- P ft-F''FI'?!' . TERASHEET I| OF C SHEETS'
9 ' t: 1_ % r ? ' * , t f.P't b t-$1? A) @UAL!!A~|C '-'
~
N DATE ' " '> :? . ef PREPARED BY '
PROJECT NO.' '
'I "'Y' C0 7 - 0 0 7 CHECKED BY N . /nATE 52CONTROL I D. NO.
2 e , .-| 1 '~.n..-. G r ., .Y?2 e ,.
. i,,)q < g,,., y j ,. , , ./i'fC r rre i' .c .
. J
,
O f (O * $O D .'
g* C, %%r ( {. ''l* '*.
1
I C r , IJ( || I '
,. :, = ." 'o t. - - .,
"i
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. , * J 'l ? - r ts ) .
- 47-- .' .I . ,
|| *.f ,, . r. - ;. ~ = .. . . , .,-
;
11
- -._.
- - _ _ _ _ .. . _ -
SUBJECT C*'V3'u l' f/&L F F ' F /'N TERASHEET l9 OF 47 SHEETSt'.'IIi D % Ci<f;'d CP!IGAl & L.e A Vt)7lo A| 1
-
, ,
PROJECT NO. @l() PREPARED BV 'Y DATE // T 'b fDATE__.'l ' l '''
CONTROL LD. NO ! 0 /V -f CI 00 7 CHECKED B/ *| '
/ c, U,' E ca A e L - K 7. u . 2/
:!!._o
'/*- cc;lL a. c o y :a . - yC ,'. i D.4 - 7 0 y e > :> i r e.: s .r
'
t c ~ %. Ik< ku11 nc| , ' '
c: % - n i- :-e r f :s c
.
7-he w a ; ., d aus, Leids ic/4 |su< u e d u .c< I :: . r: I
ic/Ji 9 n k sf ec 4-W -,' -I.,~ |,;h,a k , ry & ui, hen,! h s a i
& ua.nisls Lel.L 1,-ae.s ax 11-16. Tb e f L < h. .> 1 =s a .- e3
57c s:.4 ,= J - 1 , < ., '.u ;J cc % ud :. r, .1 .
' * **
k'.x , /, ,3 . c P" v el le., ~. el r-cr ; J i. c y. n e
1 .- Tic- . -I /C ,. , ,
.. . ,g f
c '. > b c '. I 'i| h 13 t er " c G|'r e /C5 I5t t' u c . / 7ss ,r
A ls . ., //cnl:-% le c k . G i a c.~ n .: 20 y
r0;; ; r x .A. r.._-
/)o r : r ! t r 40 C = c j :.~
_r- r.. . . . -wy a
/ - **O
.9 19 h ! - |i' .*
Erakc kas 2.ro % c ap e, /7 o . cr :rf u e...,: --.
A >" . #c . C / ;
di: r .H 5.j . (' ^''~.. rC-
r a rc < T'Tc, retr = / .c : .i //0 / . - /$f' *
D';;' '-
s # /,vr 4 r= w= l so "4
. . wh w tw ': u n ce ! ,. = e --
-- ;u... c.:,
- _ _ _ _ _ _ _ - _ .
M.
SR Bf3 D J /'.t u f , yipx y3J-ni,)try 13 %-
'
SH331 cy 03 SH331S~
E ' #' '8 b,
W0f3D NO' dOlh W3dW3G 9A . c,| ON3 sf,; :r,
cO O N1JR X l'O' N O'
3 a. s,v [ .s; 4 OH3OX3G 8A, t- GN3' -
A //'.S 70 :: J2j 7~V(2
, ),) p jjs $ ;g;> 7. /: .
-j'. v :(-~ss- ,.<,p. : - >. : r*e -
g s. v p ; ( a, : - .5 -4 + -,<c 9 3 3 [ ;.t s : v .-- c/v
~ ~ s. . . > ut. -,
n sn c- : ::- -..
r a.. s/:-.PY -
-
( Y '. 1 y< * s 1 j $ f s j*,~i .I ' ',s- ,L
,
* * '.- - - . .'. - --
yh 7g ?pa IL3 |:... y
1: a .n*;' v' ' -*
%*y| m'>>r;- p ( ,) .' ' ' ' I i S' .:'; ,s ''~'
)3.p ,. p f y gn us v jy v -.
y
).t Jg " tl(*1
w j ,( 73 ;> t q < y :a
5 J- | fM. - f' 3 ' O C C ! ) ,:( * * . - 9 -( G'c s,4- .
(t' '- '
e
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J).. .*
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s
39t'-|||;af -|~?'>; :~ - 7.,,
,
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n ' ' l ~= ' F = b
>| ., ,= N | 7 2 *S f f,g'T.CC> 4; T
r.
!
SUEUECT C P'i D TsL M 1(nst A f M L r D G TERASHEET Ci OF
.
SHEETS- syI... Di J:, Cu. ''t. he 'I 6 U f u<n. L L v. to N . ,-
'
..
'I'' /' 2c;G PREPARED BYq DATE'
PROJECT NO.'
CONTROL i D. NO. * O 'O 'O C's rf 7 CHECKED BY S ''
' DATE'
Y, //. Y 9'hc(| C kir Amec
4:|tt\ e.'.cseL .ef e i- '/:) : ICMAA '; c e g aie <s a
(i.s.,(X, + %,} s ke a f d b t Y4 to I" C: - s. L' ' #. r
LG a e l& cc\ kg \ Wif_I.h (Wd b)) ) ' x O_@u ''; . ' * , - :f
3 ,.43c (29-... A 3.isr (i7r b 0 s . n' r -..
Lg+ nacyvv.....h.4 a.2r ( n n ea) 3. i .r . . . .%.
rA )L
y,-> . -se >
* 4 ->,
.
--
SUajECT I''' % ' Ell /l l f l' *N ' CI ''/ S . TERA, , . , ..
SHEET OF SHEETS~~ ''
V 'n t t'r M Ct;/v_ t,c <1/o/) E !A LuF '.F -
PROJECT NO.,-e PREPARED BY Y DATE
' ~ ' L' - # T4 -? O 7 CHECKED BY ' ' ' -'CONTROL LD. NO' '
DATF' -
3 e(Mj e b.ydrC (Re 6)hi/ i > d:er S - V70 3V./L.| .
/cvg /k = 2/er.3 u~ p c - r e c.
s e r s g le k a l n.: c:..,: = atn.
r m.., h e e- leep,t = a 'e i ., ,,
f. , /s t : u u c Ne e c.e a ud e , r : -- e c r is a I r+1/
9 I8, a: ./A . a) V '!V i ... s.c ~f re st o:nBa g ee es h =
re - s e r; .,3 s, F=kx.
:,np as = k U % ; .)
[5p-e q C e e s f 4. J k.'
VI,4?r/$r./JE.379c15s/ca.: or
A 4 4._ , 4, (6-,dge ( r a. u c // m j /: w , - / A m.- t c . : ~ y < > ) :
'dy s.,_w. - -
% fvx
2:o
a c ey : e(+,) = h n ' ( , i J.sI e. .,gy :c)c.
.
W% 4, u L c)
nt 4 . -. c +, G .d . s %s b e e .~ + v: . <3 d h e'y cy cw..: -.,
,
n pf : (rd = F; ~X (7 ' id f o r e e ' ~ p ., e ! E .'yz ; .sf m a . , ,-e :: d t u . ,ec ;_, x 3 (u . : 1 U :: : . . . a i e +:p ).
,
nm
. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___
9)BJECT ' E * t W L ' "' f ' ' ' /! ' 'l TERA-
SHEET E' 3 OF '' ,-. SHEETS. ro *, r; r s i' ? w c!: / \q ': t U M. ''*:'
,.,.
PROJECT NO. M/y PREPARED BY i* DATE~'
' -
#
CONTROL l.D. NO. Fr/V -M - M ~/ CHECKED BY Adf DATE ' / '' '' ? A-
1i
|
Skce F, = 3 k X , , Q c.< .np rej )
#C(l a ) = S k 1,
YL e r b ril bi ~ ~ t ! f - ' t' l i*'A t u v. . 're by 1,C t i ~d wC y
; c O,1= cCI ):
.
; 14
Ea u v, " 2Oh L*
w. s I, v e .' : 1) k Ib s lu.:) f.ru;
I = t b H/s et *'
; w v-a' - Ilv GVA. ai
4
e ', e-* {t s/ m- --
% a _~ 9 k O
Gy es * 'i o fL( l ertc U ( c. ::: ;;
r, l e s ,.I, <) by ori}e) L .z |i I cy 1:,-;-r= .~_
a-
,
F , = m a.
s7 1 ~; . - , _ . , |~ d, C '~50)A* of t..f 4 4
: ,
| - Lt.) #1, |
ps ^- IG E.
''x
1-
1
I
b.L w ri'^ .} \; ; 5 lT; = 5 k ')C (5 t .' |s cri rg
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1
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SU& LECT ' I b'? N t ' i C L 2 c fu k~ L)V '.SHEET 3Y OF ?" SHEETSl'191L b t C c c ctwt- Gt s$2/3 LM Alf/47111
PROJECT NO. B 0i f/ PREPARED BY iY !'');-'
DATE
CONTROL I D. NO. ? !?/!) * 0 0 T - 0 0 7 CHEGED BY dn- 5o 'DATE Ib''|0L-
.w ve.'. u, i, -0%*
w -44, = 3a kv (l._~t a
r:e f k e. Cry c I.1| A; e er ~1 rei u c h 3 / x.14 3 e ro . s c :.
1
t. r i .4 c. s o ci : so 5.p. ~ . ( v. -)$
a ?. ' 2 < ret]= i: 4 c ,. . ,I!,.'i1 1* '=, .
to % < c c c) = a c E .~~ = . n 1 4 v:,P i
we i$ k41 Tect.le, n o, w: ter.=
1 id e.g s:, v := e
t14e} Los) = =v .::.' lis .
n4) . 41 '., v 2.* /:: =e;
r,c- O a fe.,< ' . , -
*X _-u. ,J E
1 8 v K
$ [4 %,4c0',
S Y vc,m -n.=
. 3 s 7 tr, -il,=
a+ uc % o\ <aa d (cal sp ed,r
! N O e ?':) = . u? (. 333) = . i a 4 14, = l.n cn.
ade$aa 'c h sley G l= .1 d : n < el:. h -pers a,cn n . y,- r
V J (ke L cc f rave l,if
SUaJECT C f.L47AL EIUt E CC t 9 CLir3 ' ggSHEET AF OF -) -
SHEETS'_
e C '' /3 = 'J LL1/TT/3'/F .' 'll B ! /1 f- C R A/)C r s '''q.PROJECT NO. # ' ' ''' PREPARED BY DATE '* *
CONTROL I D. NO. I ? I " ' "I ~ 00 7 CHECKED BY' SA 'DATE '/4'' /2 1'
Atti $f r A.kion (a.f D O ?c s Pc tY) =.a-r n-
D* ils ?. *bi
w v,t ao%)2 1 1 .< n ( - ~, , s :c % | ,,! < l < cd)4 = '
-
(v u., ve.") a,= O 2)(vr, n r) x ,
, 3 v, / x=a
. I (.16 6 7) /( I; 4): -sec
.sse 3 c.=
--(.f6(.8. ' . D= .3 22 - I! /se c ''
= .y3 H|see'
rk.s u we!/ a: S a (ke CstA A ic :ce:L s' -;i
1 }!/s(c.ief <
t
.
,, ,. _ 3,, .g_
. . --, . ; SHEET l OF -' SHEETS-. - ., 'c at.
.., r- :-. t -*
'"-~~'
PROJECT NO. ' ,,I PREPARED BY ' 'l -' DATE ' ''.
i )- ,' '' -om -09I CHECKED BY e DATE -
CONTROL i D. NO. -
5. 3.1, |s ) &hebts- ?cCftr i ." '. 1
T, c|(~h,.,(,; r ~'! e c !--:...c (Lc . - ~ .s e . -..
k tc A i r-)C r C o v sike n |o .* Y Si t n| b |/''
u a r. :'u r:-* #
1-
& v- ] d h _,:1;J,o; ,I <? s ,. - .. , ci; 3-4
i
n % '!,y-.Dgt
,_ _ . _ . _ . _ .-
o, O ^
r
I
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O
L p J . .q.
I
AA
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i
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P,
#f, i .e . _ . s3-
y
!.
$9C s' $ s $*k
w w t,Cgg: / ? _' T . . ; - 3 ,', ; , ~ ~ ~., $fa- T * j ' ~y ' l<2 .
'c7* I' v > ** * W #
(Cr ..$ < '4% fiI lc.s **01 .
, ,, - g- - - - - - - , 4 r y-._..
*
(tid, T o t * I) < C'L ^ ^ ~ , q 3- : . -)=
o v n,u: cs-
_ _. _ _ _ _ _ _
- ____ _ _ _
WBliCT C v &P - ''" 't u' ' n <-.
OF.
SHEETSWRA
SHEET --
(J. l o . |.s CP. id LV: 2 ?) 64 ALw3~1 WPROJECT NO. b L' 8 d PREPARED BY ''/ DATE *
'
>
CONTROL l.D. NO. 9 *#-30 ? -oo / CHECKED BY I< DATE '/,
3 6:,:ct I1 v.0:: I M,40Dt - +,,g, _
- ~. a p y
R .=_ 3 81 n 4 7E d '5_
i
W x s . . / ; - .) =(oSt.27rYlV7dog= y 4 (<c - 1:,.: - p )
l e r, c c. - Es(v) #lf*
a ( f,';,)(i ip) a(I')(13"1r(,"[3
. ..---4,
%
4 9 3 - k - i .!*
i c r, . - (, (L') ''I X .r '7 ( wh = ,4 c .
* W?i - k 1., " * ): . t) p. L t .e
.-
_ _ . _ . _ _ - . _ .
SURJECT CM E '' 'i P r ' r - " !' 'A TEM'
SHEET J OF <- 1 SHEETS.
. , , . . . r.._.i w,,.
_
,
PROJECT NO. A r |4 PREPARED BY OrED 63 DATE ~~ ' ' -O
'''CONTROL LD. NO. - ~ C C' Mo / CHECKED BY / DATE -
CmAn- 7c 7 cc.nc13 2. 3. 3. I 2 ._ \
M.i ii: i~ n e.. ,. .: .:- - -- . ~ ~ ~ . . - ..-;....
$$ ML ' . M t.i a uf [>- ' ou Cc n Lpu.55On p_z
CO 48 g ht_3To = /. 2 C.4 +0,6 J'
av.;,7.adte d 6UJ.i .. aJ h<.IdulE'i.'~* :t 5-. . . - .
L
A:.25~.s,; 2,5 w t.
1
. .
Is - if"(mia.4p.s. - Mdi :c'. d: AF re. . .
'
M= \ C" E- ~
, fi ( ':
,
To ' l . 7- O A ' u u ]5'' x 0.] _|J' L ch5/d ( . q ig. Ep \(;i ;* (.3|7 5') _ ' p~ # (' ' ' ' ' #IIC 1lo_
* d .33-/4).
<| r*1 ( s .:s)(.21),
7''I hs(a-f) R: : (9Er] . or)
~ "1. 3 '/
h t ) a b i ' T k (a - W i ',Y_ f t|e &?(4 -l* t,a7- | 7, s /O'*
%2
H| Nh ''s' 2. V 3_
'
'4 ' t ''
|I ' 5 y e < 'lc I a, s Were- rg r,24 % >*'f" x,: -ic.r' -2 = a.mt c
''
j. A = a h + b4 = 2. G
!y. ..:yi- p . 9 3 & (0. 9 4 '.!(d . : SI = I'' T - ,'! '
+*E'
[ y ': 3.+34(Jf'-j':,.7,- /(,7 _tu:___
.
(< : U l- E)
_ _ _ _ _ _
SUBJECT f/. 5'/ F''- f&~oC TER,^-
.~SHEET OF SHEETS
*
eu,w nt e u rat 1 * : n. - t . i. < . r~r en.
PREPARED BY b'' O DATEIPROJECT NO.,,
CONTROL l.D. NO~
l- J ' 7 ^ '' I CHECKED BY '- OATE'
.s
( (I ( Wk & b h$\ Qfl '[5 0. Y & D .' . ** 5, j . j
. r4 s
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| ANSI-830,2 CRYSTAL HVER 3
~
ChlAA-70 SPECIFICATIONS 1976 (SECT 2-1) EOCl 61 REACT 0. JILDINGPOI.AR GRANE
4.10 COUPLINGS2N/A N/A
4.10.1 Cross shaft couplings, other than flexible type, shall be steel or minimum ASTM GradeA48 64, or later. Class 40 cast iron or equal material as specified by the cranemanufacturer. The type of coupling (other than flexible) may be compression, sleeve. orflange type Flexible couplings shall be the crane manufacturer's standard type. Couphngsshall be provided at e.sch end truck and each side of the motor gear reducer. Additionalcouphngs may be installed as riecessary
4.10.2 Motor couplings shall be es specified by the crane manufacturer. No additional criteria Same as CMAA-70 Complies I4.11 WHEELS
I. . flo additional criteria Same as CMAA-70 except Complies4.11.1 Unless other rneens of restricting lateral movement es provided, wheels shall be double tolerance on drive
(Tolerance on drive wheelflanged with treads accurately machined. Bridge wheels may have either straight treads or wheels not specified.tapered treads assembled with the large diameter toward the center of the span. Trolley diameter is not criticalwheels should have straight treads. Drive wheels shall be matched pairs within .001 inches to preventing a loadper inch of diameter or a total of .010 inches on the diameter which ever is smaller. drop).When flangeless wheel and side roller assemblies are prov' %d they shall be of a type anddesign recommended by the crane manufacturer.
4.11.2 Wheels shall be rolled or forged from open hearth, basic oxygen or electric fumace steel, flo additional criteria Requires chilled iron, Spec.' 322-C1.1 Sectionor cast of an acceptable cast or nodular iron, or cast of an acceptable carbon or alloy forged or cast steel. 4:01.2 requires SAE 1045steel unless otherwise specified. Wheels shall be heat treated if specified on the forged or rolled steel,
information sheets- Complies
4.11.3 Wheels shall be designed to carry the maximum wheel load under normal conditions flo additional ciiteria Essentially same as Bridge and trolley wheelwithout undue wear. The recommended wheel load shown in table 4.11.3 is that load CHAA-70. Only difference load criteria areproduced with trolley handling the rated load in the position to produce the maximum is location of trolley satisfied,load and may be used as a guide for wheel sires. Impact is not included in these figures. for mininum load.
3For unusual ex>nditions. consideration should be given to other factors which are not Compliesincluded in the simple formula on which table 4.11.3 is based.
4.11.4 Proper clearance (a total of approximately 3/4" to 1" wider than rail head) shall be No additional criteria No clearance specified. Wheel clearance criteriaprovided between the wheel flanges and rail head. Tapered tread wheels for bridges maY are satisfied,have a clearance over the rail head of 150% of the clearance provided for straight tread 3wheels as recornmended by the crane manufacturer.
4.11.5 When rotating axles are used. wheels shall be mounted on the axle with a press fit alone. No additional criteria Requires press, tapered- Rotating axle, key|
press fit and keys, or with keys alone. All wheels shall have sufficient hub thickness to drawn, or keyed fit. mounted. Complies' permet the use of keys.
4.12 BUMPERS AND STOPSflo additional criteria Not addressed N/A - Crane Bridge
. is circular,therefore4.12.1 Brsdge bumpers-(i) A crane shall be provided with bumpers or other automatic means pro- bumpers at end of
viding equivalent effect, unless the crane is not operated near the ends of bridge and trolley travel are not applicable.travel, or is restricted to a hmited distance by the nature of the crane operation and there is nohazard of striking any object in this limited distance or is used in similar operating conditions.The bumpers shall be capable of stopping the crane (not including the hf ted load) at an averagerate of deceleration not to exceed 3 ft/s/s when travehng in either direction at 20 percent ofthe rated load speed.(A) The bumpers shall have sufficient energy absorbing capacity to stop the crane whentravehng at a speed of at least 40 percent of rated load speed.(B) The bumper shall be so mounted that there is no direct shear on bolts.(ii) Bumpe shall be so designed and installed as to minimize parts f alling from the crane in
-
'l ANSI-830.2 CRYSTAL *HR 3EOCl 61 REACTOR .LDINGCMAA-70 SPECIFICATIONS 1976 (SECT 2-1)
POLAR CNANE
4.12.1.1 Bridge bumpers shall be rigidly mounted in su<_h a manner that the attaching bolts are fio additional criteria Not addressed N/A (polar crane)not in shear and they shall be designed and installed t6 minimize parts falkng from thecrane in case of breakage.
|N/A | N/A (polar crane)4.12.1.2 Bumpers shall be of sufficient length that no part of either crane will be damaged whenN/Atwo cranes come together and the bumpers are fully compressed.
4.12.1.3 Heights of bridge bumpers above the runway rail shall be as specified by the crane flo additional criteria |Notaddressed N/A (polar crane)manufacturer.
4.12.2.1 Runway stops shall be provided by the purchaser and shall be located at the limits of the No additional criteria Same as EMAA-70 N/A (polar crane)bridge travel.
4.12.2.2 Runway stops shall be attached to resist the force applied when contacted. fio additional criteria Not addressed N/A (polar crane)
4.12.2.3 Runway stops engeging the tread of the wheel are not recommended flo additional criteria Not addressed N/A (polar crane)
4.12.3 Trolley bumpers-li) A trolley shall be provided with bumpers or other automatic means of f!o additional criteria Not addressed No bumpers are pro-equivalent etfact, unless the trolley is not operated near the ends of bridge and trolley travel, or vided on the trolley.
is restricted to a limited distance of the runway and there is no hazard of striking any object in However, wheel stopsthis hmited distance, or is used in similar operating conditions. The bumpers shall be capable of are provided at the
end of the rails.stopping the trolley (not including the htted load) at an average rate of deceleration not to Further evaluationsexceed 4.7 ft/s/s when travehng in either direction at one third of the rated load speed. should be perforined toliil when more than one trolley is operated on the same bridge, each shall be equipped with evaluate alternatives.bumpers or equivalent on their adjacent ends.laid Bumpers or equivalent shall be designed and hstalled to minimize parts falling from the (See section 1.3 oftrolley en case of age. Also apphed to wood. rubber, polyurethane, etc. bumpers. report).
24.12.3.1 When more than one trolley is operated on the same bridge, each shall be equipped with N/A N/A N/Abumpers on adjacent ends and they shall be of sufficient length that no part of eithertrolley will be damaged when two troHeys come together and the bumpers are fullycompressed.
4.12.3 2 Bumpers shall be rigidly mounted in such a manner that the attaching bolts are not in flo additional criteria Not addressed No bumpers are provided,shear and they shall be designed and installed to minimite parts falling from the crane in (see 4.12.3 above)
70L5 ELECTRICAL EQUIPMENT 2N/A N/A N/A
6.1 GENERAL
62 MOTORS. ALTERNATING CURRENT AND DIRECT CURRENT
5.3 MOTOR BRAKES. ALTERNATING AND DIRECT CURRENT
5.4 CONTROLLERS ALTERNATING AND DIRECT CURRENT
,--
- - - - -- --
ANSF834.2 CRYSTAL BWER 3CMAA-70 SPECIFICATIONS 1976 (SECT 2-1) E0Cl 61 REACTC UlLDING
- . _ _ . P01.C] GRANE5.5 RESISTORS
No additional criteria Same as CMAA-70 for N/A (mechanical loadClass A, B, and C5 5.1 Resistors (except those in permanent sections) shall have a thermal capacity of not less brakes are used)cranes.than Class 150 series for CMAA crane service classes A, B and C and not less than Class160 series for CMAA service classes D and E.
5.5.2 Resistors used with power electrical braking systems on hoists not equipped with No additional criteria Not addressed N/A (mechanical loadmechamcal load brakes shall have a thermal capacity of not less than Class 160 series.brakes are used)
5.5.3 Resistcws shall be designed with the proper first point stalled torque as required by thecontre! system used.
5.5.4 Re sistors shall be installed with adequate ventitation, and with proper supports towithstand vibration. No additional criterfa Not addressed N/A (mechanical load
Specifically brakes are used)5.6 PROTECTION
flo additional criteria Requires pendant con- EOCI more restrictive5.6.2 Cranes not equipped with spring return controllers, or momentary contact pushbuttons, trollers to be spring
returr.ed to the "off" Compliesshall be provided with a device which will disconnect all motors from the line on f ailure posi'. ion .of power and will not permit any motor to be restarted until the controller handle isbrought to the ''OFF" position, or a reset switch or button is operated.
5.6.5 Overinad relays shall be provided for each motor either as a function of each control or i No additional criteria N/A N/A 2by an enclosed protective panel. Overloads are required in two phases of A. C. motors D.C. cranes require one inverse time element overload for each rnotor.
,
5.6.6 A line contactor shall be provided with each motor control of D. C. CMAA Service '
Classes A1, C, D and E cab operated cranes. 2N/A N/A N/A
5.63 On remote radm cranes, if the contros signal for any crane motion becomes ineffective,that motion shall stop.
568 On remote radio cranes, purchaser shall specify if other radio equipment is operating orplanned as future installation in the vicinity where the crane will operate.
5 6.9 On automatic cranes, all motions snalt fait safe if any malfunction of operation occurs. No additfonal criteria Not addressed N/A - Crane not automatic
5 6.10 Electrical safety features shall be in accordance with the ANSI 830.2 Safety Code.Same Not addressed Comp 11ance with B30.2 is
addressed by thisevaluation
5.7 CAB MASTER SWITCHES flo additional criteria N/A N/A2
The arrangement of cab master switches, or their operating handles, and the resultant directionof book movernent shall be as shown in Sketch 5.7.
|
!ANSI-830.2 CRYSTP NVER 3
CMAA-70 SPECIFICATIONS 1976 (SECT 2-1)EOCl 61 REACT 0. JILDING
POLO CRANE
5.8 FLOOR OPERATED PENDANT PtJSHBUTTON STATIONS No additional criteria Not addressed Complies, see operationand maintenance manual
5.8.1 Unless otherwise specified the arrangement of a pendant pushbutton station if in a vertical furnished by Whiting.hne should read from top to bottom: Stop start; Up Down (Main Hoist) (Aux. Hoist);Right Lef t (Trolley); Forward Reverse (Bredge).
5.8.2 When start stop pushbuttons are arranged horizontally, start should be on the lef t, and No additional Criteria Not addressed N/A (Controls arestop should be on the right. located vertically)
5.8.3 Stop pushbuttons shall be red. Not spectfled Not specifiedn nten n e ma
5.8.4 The trolley and bridge direction markings may be right, left, forward, reverse or compass 2directions, as applicable, or as speCfied. N/A N/A N/A
5.8.5 Pendant pushbutton station shall have a grounding conductor between a ground terminalin the station and the crane.
5.8 6 Pendant pushbutton stations shall be supported to protect the electrical conductors against No additional criteria Not addressed Crane control has cablestrain. to support pendant.
CompliesI5.8.7 Pendant pushbuttons shall be spring-return to off. No additional criteria Same as CHAA-10 Complies
5.8.8 The maximum voltage in pendant pushbutton stations shall be 150 volts A. C. or 300 N/A N/A N/A2
Volts D. C.
5.9 HOIST LIMIT SWITCH No additional criteria Same as CMAA-70 Compliesl
5.9.1 The hoist limit switch shall limit the upward travel of the load block by removing powerfrom the motor and applying the holding brake. The hmit switch shall be either powercircuit or control circuit type. A power circuit limit switch shall interrupt the hoist motorpower circuit directly. A control circuit limit switch shall indirectly open the hoist motorpower circuit through a contactor in its control circuit.
5 9.2 Interruption of the hoisting motion shall not interfere with the lowering motion. Lowering e
of the block shall automatically reset the limit switch. ,
5 9.3 The crane manufacturer shall state whether the hoist limit switch will be power circuit or 2nfg gjgcontrol circuit type.
5.10 INSTALLATION
5.10.1 Electrical equipment shall be so located or enclosed to prevent the operator fromaccidental contact with live parts under normal operating conditions.
5.10.2 Electrical equipment shall be installed in accessible locations and protected from dirt, No additional criteria Not addressed qu n a cess e
grease. oil and moisture, as required.g
5.10.3 Heat shields shall be provided when requested by purchaser to protect control panels, 2N/A N/Araceways, etc., in areas of high radiant heat.
d ANSI-830.2 CRYSTAL g'lVER 3'
E0Cl 61 REACT 0' llLDINGCMAA-70 SPECIFICATIONS 1976 (SECT 2-1)POLO ulANE
2N/A N/A N/A
5.11 BRIDGE CONDUCTORS
5.12 RUNWAY CONDUCTORS
} 5.13 VOLTAGE DROPS,
5.14 CURRENT COLLECTORS f.
Footnotes to Crystal River Crane Evaluations
1 - Crane complies by virtue of EOCI-61 being same as CMAA-10 and ANSI B30.2and since crane was designed to EOCI-61.
2 - N/A in notes means not applicable to load handling reliability.
3 - Supporting calculations have been performed for these items; calculationsare included in Appendix B.
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