1. CVE 4070 Construction Engineering Shop Drawings Quality Control
Habitat Build
Prof. Ralph V. Locurcio, PE

2. Schedule update

3. Project Delivery Process…We
are
here

4. Project Organization…

5. Contract Documents… The Agreement or Contract The Specifications
The Drawings
Important Note:
Unless otherwise specified this list is the “order of precedence” of the contract documents

6. Drawings in standard set…
Title Sheet
Index Sheet
Architectural (A)
Civil & site utilities (C)
Structural (S)
Mechanical (M)
Plumbing (P)
Electrical (E)
Fire protection (FP)
Finish schedules
As-built/record drawings

7. 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.

8. 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.

9. 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

10. 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

11. 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

12. 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.

13. Example of Shop Drawings-1

14. Example of Shop Drawings-2

15. Example of Shop Drawings-3

16. Example of Shop Drawings-4

17. Example of Shop Drawings-5

18. Example of Shop Drawings-6

19. 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

20. Submittal Review Process…

21. 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

22. One-to-One authority…PM CM

23. One-to-One authority…

24. Part II – Specifications & Administration of Quality

25. Management of Quality…
Definition of Quality Control
Definition of Quality Assurance
Designer’s responsibility
Contractor’s responsibility

26. Project Organization…

27. 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

28. Construction Inspections
Three phased inspection system
Preparatory inspection – meeting
Pre-inspection – on site; prior to construction
Final inspection – after completion

29. 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

30. Stopping the work… Work is defective… Unsafe conditions…
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

31. Project Organization…

32. End of Part I

33. 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

34. Habitat Location

35. 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

36. 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

37. Scope of tour… Meet key officials Discussion items
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

38. 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

39. That’s it for today…

40. 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

41. Sep 14 – Construction Tour

42. Project Tour: Tue Sept 14…
Before:
1. Meet at parking 5:00pm
3. 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 6:00pm.
3. Tour homework sheet is next class.
4. Next class at regular time & place.