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

Schedule update

Project Delivery Process… We are here

Project Organization…

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

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

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.

Example of Shop Drawings-1

Example of Shop Drawings-2

Example of Shop Drawings-3

Example of Shop Drawings-4

Example of Shop Drawings-5

Example of Shop Drawings-6

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…

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… PM CM

One-to-One authority…

Part II – Specifications & Administration of Quality

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

Project Organization…

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… 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

Project Organization…

End of Part I

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 Location

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 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

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

That’s it for today…

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

Sep 14 – Construction Tour

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