2014 NCS UPDATE for AASHTO/AWS D1.5
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2014 NCS UPDATE for 2014 NCS UPDATE for AASHTO/AWS D1.5AASHTO/AWS D1.5
2014 NCS UPDATE for 2014 NCS UPDATE for AASHTO/AWS D1.5AASHTO/AWS D1.5
Boring or interesting?
Boring? Interesting!
2014 NCS UPDATE for 2014 NCS UPDATE for AASHTO/AWS D1.5AASHTO/AWS D1.5
D1 changes officers in October 2014
• Duane Miller completes term as D1 Chair• Allen Sindel - Chair• Todd Niemann – 1st Vice Chair• Ronnie Medlock – 2nd Vice Chair
2014 NCS UPDATE for 2014 NCS UPDATE for AASHTO/AWS D1.5AASHTO/AWS D1.5
AWS adds staff to support D1 Committees
•Two Staff for D1 Brian McGrathSteve Borrero
2014 NCS UPDATE for 2014 NCS UPDATE for AASHTO/AWS D1.5AASHTO/AWS D1.5
Meet twice per year• Spring meetings at AWS
Headquarters• Fall meetings move around
country• Public meetings
D1.5 Dual Governed by AWS D1 committee and AASHTO T-17
Holding HandsHolding Hands
AASHTO and AWS agreed to a new AASHTO and AWS agreed to a new organizational structure for D1.5 organizational structure for D1.5 Committee. Committee.
6 AASHTO Members6 AASHTO Members
6 AWS Members6 AWS Members
6 General Interest6 General Interest
MembersMembers
D1.5 Membership -- 18 voting member
AASHTO Members•Todd Niemann – MnDOT •Mary Grieco – Mass Hwy Dept •Kent Nelson – MODOT •Kevin Ledford – GaDOT•Steve Duke – FlDOT•Nina Choy – CaDOT
AWS MEMBERS •Dave McQuaid - Consultant (Chair•Ronnie Medlock – High Steel (Vice Chair)•Heather Gilmer – Florida Structural Steel•Karl Frank – Hirschfield Industries•Nate Lindell – Oregon Iron Works•Buck Roberds – Industrial Steel
General Interest Members•Duane Miller – Lincoln Electric•Dean Phillips – Hobart Brothers•Chuck Holmes – Modjeski & Masters• Jon Edwards – DOTQS• Robert Stachel – HRV• Ray Stieve – Greenman-Pederson
Happy Times?Happy Times?
Next Publishing: 2015Next Publishing: 2015
Proforma Ballot is assembly of all Proforma Ballot is assembly of all materials that have been balloted and materials that have been balloted and approved by D1J, D1 Main Committee, approved by D1J, D1 Main Committee, and AASHTO SCOB.and AASHTO SCOB.Proforma Ballot has been assembled, not Proforma Ballot has been assembled, not yet balloted.yet balloted.
List of approved ballot items:List of approved ballot items:•FC Preheat Tables•Vision Acuity for inspectors•Flange warpage and tilt•Web Distortion•Tub girders•PQR Limits•MT Yoke Lifting Power•DC Pulsed for MT•Various Figure 2.4 corrections of preapproved details
List of approved ballot items (Cont.)List of approved ballot items (Cont.)•Weld Profiles•Preheat and Interpass measurements•Weld Backing•Grinding Undercut•Procedure Qualification•HPS 100W replaces 100W•Cored Wire Removal for FC commentary•Non-Standard Joint Details•Fillet Weld Soundness Requirements•PQR Heat Input Calculations
What’s Up…..What’s Up…..Ongoing Topics and Current Ongoing Topics and Current Activities Activities
• Broken Tack Weld Commentary
• PAUT• Reinforcement •Removal
Ongoing Topics and Current Activities Ongoing Topics and Current Activities
Frequent Fabrication Issues• Dimensional Tolerances for Rolled Beams • Bending Requirements• Laser and water-jet cutting• Assembly
• The D1.5 code is a welding code and not a do all fabrication code.
• Issues that need to be addressed what’s the right place and group, AASHTO, AWS, NSBA, ????
A Closer Look at ChangesA Closer Look at Changes
Interesting for some…yetsnoozer for others
MTMT
Error in Clause 6 table regarding lifting Error in Clause 6 table regarding lifting power of MT Yoke.power of MT Yoke.
• 10lbs lifting power needed for AC or DC 10lbs lifting power needed for AC or DC Yokes.Yokes.
• Consistent with ASTM now.Consistent with ASTM now.
Added Pulsed DC as acceptable MT Added Pulsed DC as acceptable MT method.method.
Tub GirdersTub Girders
Change to 3.5.1.7 Change to 3.5.1.7 Address measuring Address measuring
warpage and tilt of warpage and tilt of flanges for on tub flanges for on tub girders.girders.
Different when webs Different when webs are not perpendicular are not perpendicular to flangesto flanges
Preheat and InterpassPreheat and Interpass
Clarified that preheat or minimum Clarified that preheat or minimum interpass temperature has to be interpass temperature has to be maintained throughout welding the maintained throughout welding the joint and 3” in all directions.joint and 3” in all directions.
Preheat measured at location of Preheat measured at location of welding arc.welding arc.
Established that maximum interpass Established that maximum interpass will be measure within 1”-3” from joint will be measure within 1”-3” from joint face edge just prior to next pass.face edge just prior to next pass.
Web FlatnessWeb Flatness
Provided better instruction and Provided better instruction and description for proper ways of description for proper ways of measuring web flatness.measuring web flatness.
Revised Code and CommentaryRevised Code and Commentary Added sketch to Commentary.Added sketch to Commentary.
Preapproved JointsPreapproved Joints
Fixed a number of Fixed a number of errors in the figures errors in the figures for preapproved for preapproved joints.joints.
Clarified when Clarified when reinforcing fillets reinforcing fillets are required.are required.
Weld ProfilesWeld Profiles
Changes requested by AWS Changes requested by AWS Certification Department to clarify Certification Department to clarify acceptability of bead shape and acceptability of bead shape and undercut.undercut.
Sets convexity limits.Sets convexity limits. Clarifies removal of weld Clarifies removal of weld
reinforcementreinforcement Clarifies surface finishClarifies surface finish
Weld ReinforcementWeld Reinforcement
Improved wording on Improved wording on how it should be how it should be done properly.done properly.
Establishes criteria Establishes criteria for unacceptable for unacceptable undergrinding when undergrinding when reinforcement is reinforcement is removed.removed.
Procedure QualificationProcedure Qualification Significant changes in Procedure Significant changes in Procedure
Qualification Qualification • Heat input qualificationHeat input qualification
Continue to use variable limits but allow broader Continue to use variable limits but allow broader voltage with new amperage chart.voltage with new amperage chart.
• Production Procedure QualificationProduction Procedure QualificationRemoved variable limits and use variables as Removed variable limits and use variables as qualified by test (similar to D1.1)qualified by test (similar to D1.1)
• Fillet WeldsFillet WeldsSingle pass fillets no longer qualified by groove Single pass fillets no longer qualified by groove test but rather fillet weld soundness.test but rather fillet weld soundness.
PQR DurationPQR Duration
Non-Fracture Critical – Valid Non-Fracture Critical – Valid indefinitely unless WPS indefinitely unless WPS produces substandard welds.produces substandard welds.
FC – Extended to 5 year FC – Extended to 5 year durationduration
The End
Means Grandpa’scoming home.
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