CVE 4070 Construction Engineering Shop Drawings Quality Control Habitat Build Prof. Ralph V. Locurcio, PE.
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CVE 4070
Construction EngineeringShop DrawingsQuality ControlHabitat Build
Prof. Ralph V. Locurcio, PE
Schedule update
Day Class Topic and Section Homework Due / Reading 8/18 1 Introduction, course requirements -------------------- 8/20 2 Project Organization & Stakeholders Kerzner Ch-11 8/25 3 Contract Types & Controls Kerzner Ch-19 8/27 4 Work Breakdown Structure; HW #1-WBS Handout Kerzner Ch-1 9/1 -- Labor Day Holiday (no class) -------------------- 9/3 5 Construction Contract Documents; Kerzner Ch-3 9/8 6 Preconstruction & Bidding; HW#2-Write Resume Class notes 9/10 7 Shop Drawings & Inspections; Construction Tour Resume due; Kerzner Ch-21 9/15 8 Tour Construction Project / HW#3-Construction Report Handout 9/17 9 Project Organ & Responsibilities & Study Guide Const Report /Class notes 9/22 10 Test #1 & Critique 9/24 11 Scheduling & MS Project; HW#4-Project Schedule Handout Kerzner Ch-12, 13 9/29 12 Disaster Recovery; WBS critique; HW#5-Career Day Handout WBS due Class notes;
9/30 13 Attend Career Day; Conduct interviews --------------------
Project Delivery Process…
Need for a projectIs recognized
Owner appointsProject Manager
Project Manager develops project
program: scope & cost parameters
Project is entered into an annual
capital program
Designer prepares concept design & preliminary cost
estimate
Owner orders bid documents
Project Manager advertises for
construction bids
Contractors assemble team,
prepare & submit bid
Bids opened & reviewed by owner
(with designer)
Builder’s credentials &
bonding approved
Owner approves program
Project Manager advertises for
designer
Owner hires designer
Owner authorizes final
design
Owner selectsbuilder
Contract Signed
Notice to
Proceed
Resident Engineeroversees
construction
Project phase(s)completed
All work completed final inspection
made
Progresspayment
Final paymentOwner accepts
facility
Designer completes plans &
specifications
We are here
Project Organization…Owner
Quality Control
Superintendent Project Engineer
Project Engineer
Contractor
Project Manager, Construction Manager
and/orContracting Officer
Subcontractor
Subcontractor
Subcontractor
Subcontractor
Subcontractor
Design Manager
ProjectArchitect
StructuralEngineer
CivilEngineer
MechEngineer
ElectricalEngineer
A
B
C
Quality Assure
OfficeEngineer
TechnicalInspectors
A/E Const Staff
Resident Engineer
UsingAgency
Contract Documents…
1. The Agreement or Contract2. The Specifications3. The Drawings
Important Note: Unless otherwise specified this list is
the “order of precedence” of the contract documents
Drawings in standard set…1. Title Sheet2. Index Sheet3. Architectural (A)4. Civil & site utilities (C)5. Structural (S)6. Mechanical (M)7. Plumbing (P)8. Electrical (E)9. Fire protection (FP)10. Finish schedules 11. As-built/record drawings
The Specifications… Define the “qualitative” requirements of the
project that is to be built. Provide a detailed description of the
performance features of all components of the project.
Describe the nature of the materials and the workmanship & procedures to be followed in constructing the project.
Include those aspects of assembly or construction that affect the performance of the components.
The Drawings or Plans… Define the “geometry” of the project and all of
it’s components. Include the general form, dimensions and
details of all project features that are to be fabricated on site.
Show the relationship of all components to each other.
May include details, notes and instructions that amplify the specifications.
Specs in Contract Admin…
Drawings are never 100%… Drawings show “typical” conditions Field measurements required Do not cover means & methods Need to detail “actual” materials to be used Need to detail “installation” procedures PM must evaluate & respond Requires considerable judgment & experience
Shop Drawings fill these voids
Materials used in the contract… AE obligation to ensure that materials & products
conform to those specified. Owner may claim negligence if don’t conform Care must be exercised in accepting “alternatives” Be especially aware of new or non-standard materials
Builder constantly seeking lowest market price for “acceptable” materials & methods Must prove that all materials used meet spec Must obtain owner’s (representative) approval to substitute May not submit alternatives during bidding process
Shop Drawings & Samples… Function of Shop Drawings
Link between design & construction Show details of fabrication, assembly & installation Allow introduction of commercially tested products Show method of accomplishing “special” requirements Contracts usually require approval prior to ordering
Approval of Shop Drawings Contract SPs usually specify list of shop drawings Builder must submit schedule of submissions Owner must “approve” submittals for conformance to specs Builder responsible for accuracy, methods & quality
Misuse of Shop Drawings May not change requirements or design intent Builder’s responsibility to conform, even if missed by
AE/Owner review
Examples of shop drawings Drawings for mechanical, electrical and
plumbing components. Ductwork fabrication drawings. Drawings for HVAC piping. Drawings of air handling units. Steel and sheet metal shop drawings. CAD shop drawings. Architectural woodworking shop drawings. Cabinet shop drawings.
Submittal Review…
Include: shop drawings, samples, test results, certifications, criteria & standards
List is prepared by designer Approval by owner’s rep – verify
conformance & suitability Timing of approval is essential Special attention: blasting, excavation,
compaction, water control, pile driving, hazmat, cranes
Submittal Review Process…Inspecton
Work & Materials
Visual Or
Lab Test
Lab TestVisual Test
Compare w Plans & Specifications
Samples to lab
Lab Results
Conform? Test OK?Yes
No
Issue Non-Comp
Defective Mat Report
No Payment till corrected
Follow-upRecord in log
Reinspect When Corrected
No
Issue Non-Comp
Defective Mat Report
No Payment till corrected
Follow-upRecord in log
Resample When Corrected
Make FinalInspection
Work AcceptedPayment Authorized
Shop Drawing?
AE Review
Dealings with subcontractors… Concept of “one-to-one” authority
PM/CM deals solely with the General Contractor. General Contractor is responsible to hire subcontractors Selection includes evaluation of the subcontractor’s competence Responsibility includes all acts & omissions of any sub General Contractor must have effective contracts, admin procedures
& management
Architect, Owner & PM not responsible for how the Builder subcontracts the work
Contractor is responsible for subcontracts
One-to-One authority…
Organization Organization Organization Organization Organization Organization
One to One
PM CM
One-to-One authority…
Org
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tion
Org
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iza
tion
Org
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tion O
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niz
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atio
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niz
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One to One
Management of Quality…
Definition of Quality Control Definition of Quality Assurance Designer’s responsibility Contractor’s responsibility
Project Organization…Owner
Quality Control
Superintendent Project Engineer
Project Engineer
Contractor
Project Manager, Construction Manager
and/orContracting Officer
Subcontractor
Subcontractor
Subcontractor
Subcontractor
Subcontractor
Design Manager
ProjectArchitect
StructuralEngineer
CivilEngineer
MechEngineer
ElectricalEngineer
A
B
C
Quality Assure
OfficeEngineer
TechnicalInspectors
A/E Const Staff
Resident Engineer
UsingAgency
Quality Control Process… Must have a Quality Control Plan…
a routine system & schedule of inspections Special considerations:
Timing of inspections; preclude delays Protection of work in place Most work is irreversible; i.e.. concrete, foundations Logistical sequencing Follow plans & specifications; changes not authorized Report and correct errors & deviations from spec;
documents Three phased inspections system
Preparatory inspection Pre-inspection Final inspection
QC Staff must be qualified, trained & dedicated
Construction Inspections Three phased inspection system
Preparatory inspection – meeting
Pre-inspection – on site; prior to construction
Final inspection – after completion
Quality Control & Assurance… Quality control vs. quality assurance
Inspection & Testing manual Policy matters that govern acceptance Inspection procedures Technical checklists List of testing for materials & equipment Work flow diagrams
Required on government contracts
Stopping the work… Work is defective…
Owner’s right to stop work that is defective Contract provisions govern Communicate in writing Contractor may dispute
Unsafe conditions… Risk of death or serious injury Obligation of Owner’s rep and Builder Follow verbal order with written order
Risk of stopping work… Cost incurred for labor & materials Schedule slippage might incur damages Work must be torn out and rebuilt
Project Organization…Owner
Quality Control
Superintendent Project Engineer
Project Engineer
Contractor
Project Manager, Construction Manager
and/orContracting Officer
Subcontractor
Subcontractor
Subcontractor
Subcontractor
Subcontractor
Design Manager
ProjectArchitect
StructuralEngineer
CivilEngineer
MechEngineer
ElectricalEngineer
A
B
C
Quality Assure
OfficeEngineer
TechnicalInspectors
A/E Const Staff
Resident Engineer
UsingAgency
Habitat for Humanity Build
Organize into teams of 5-10 students Build dates are Wed thru Sat Starting Sept 16 Work on site 800am to 300pm Complete report on construction work I will schedule your build date
Habitat Project Report Review plans & specs
Materials being used Equipment being used
Team organization Who is PM Who is superintendent Tasks assigned to each team member
Weather conditions Training involved Problems encountered & solved
Alternative = PM case study Read PM case study assigned Write report on case study:
Type of construction Materials used Team organization How scheduled Budget controls Problems encountered; how resolved Special techniques used
Scope of tour… Meet key officials
Construction project manager Resident Engineer
Discussion items Individual responsibilities Type of contract used on this job Organization for control of time & cost Coordination of subcontractors Training for this job Degree of experience needed Control of quality
Construction operations… Observe construction progress – homework
Turn in at class on 9/17/2007
Homework items Organization & scheduling of work Purchase & flow of materials Use of subcontractors Integration of subcontractors work Workmanship and quality control Problems encountered Correction of deficiencies Safety
Going forward… Sept 16… Project tour cancelled Sept 16… Disaster Recovery & Study guide
ALL ATTEND ON TUESDAY Class held in 500 OLS – Room 130
Sept 18… Test #1–The Basics–working on a room Sept 23… Begin section on “tools”
Project Scheduling Project Budgets Payments Quality Changes Claims
Project Tour: Tue Sept 14… Before:
1. Meet at parking lot @ 5:00pm3. Pick up construction tour homework sheet.4. Ask questions during the tour to get info you need.5. No open toe shoes or shorts
After:
1. Return to parking lot @ 6:00pm.3. Tour homework sheet is due @ next class.4. Next class at regular time & place.
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