project quality assurance - portal.ct.gov · quality assurance definition aashto r10 & trb...
TRANSCRIPT
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Connecticut DOT & Industry
Design-Build Workshop
PROJECT QUALITY ASSURANCE
August 26, 2013
Newington, CT
Presented by:
Gregory Doyle – FHWA
David Brown – Delcan
Christopher Angelotti – Conn DOT
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Module Overview
1) QA Terminology and Responsibilities(States and Industry not aware of current terms & roles)
2) D-B Procurement: QA Requirements in RFP(Requirements often Not Clear in RFP and Contract)
3) Design QA: QC vs. Acceptance(Recommended practices / Items to consider)
4) Construction QA: FHWA TechBrief (April 2012)(23 of 60 RFPs examined, could not determine Acceptance
responsibility – TRR 2081)
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Part 1
Quality Assurance Terminology
and Responsibilities
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Quality Assurance Definition
AASHTO R10 & TRB Circular E-C173
Quality Assurance – “(1) All those planned and
systematic actions necessary to provide confidence
that a product or facility will perform satisfactorily in
service; or (2) making sure the quality of a product is
what it should be …
The use of the term QA/QC or QC/QA is discouraged
and the term QA should be used”.
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Correct Use of the Term “Quality Assurance”
Per AASHTO, ANSI, ASQ, FHWA, NCHRP, TRB:
Acceptance(Agency’s responsibility)
Quality Control(Contractor’s responsibility)
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QC/QA
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• Provide Quality Control (QC):
� Design Quality Control System
� Construction Quality Control System
• Complete Preliminary Design
• Prepare Final Design
• Issue Construction Documents (Plans & Specifications)
• Construct Project
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Design-Builder’s Responsibility
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• Develop Concept/Preliminary Design (Pre-RFP)
• Establish Design criteria & Construction standards
(in RFP and Contract)
• Provide Project Oversight & Acceptance:
� Design Acceptance System
� Construction Acceptance System
� May augment staff with “Designated Agent” staff
(Consultant under contract to Agency – NOT under D-B)
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Agency’s Responsibility
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Discussion - Questions
- QA Terminology
- Design-Builder Responsibility
- Agency Responsibility
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Part 2
D-B Procurement:
QA Requirements in
Request for Proposal (RFP)
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RFPQA Programs for Design-Build
Design
QA Program
[Best Practice]
Construction
QA Program
[23 CFR 637.207(b)]
Design Builder
Design
QC System
Agency
Design
Acceptance
System
Design Builder
Construction
QC System
Agency
Construction
Acceptance
System
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RFPExample Lead QC Personnel
Design-Builder
Quality Control Administrator
• Registered PE
• Minimum 10 Years Experience
• QA Training Certificate
(NETTCP 1-Day Course)
Design-Builder
Design QC Manager
• B.S. in Civil Engineering
• Min. 10 Years Experience
• QA Training Certificate
(NETTCP 1-Day Course)
Design-Builder
Construction QC Manager
• B.S. in Civil Engineering
• Construction QA Technologist
Certification (NETTCP 3-Day)
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RFPD-B Quality Management Plan (QMP)
• Recommended practice to require single
comprehensive Design-Builder QMP:
– Documents all QC requirements and procedures
(both Design QC & Construction QC)
– Removes potential “stove-piping”
between Design and Construction
• Should be reviewed and accepted
by the Agency prior to starting work
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• Agency may require QC Plans for complex design
activities or features (examples):
� Cable-Stay Bridge Design Elements
� Storm Water Siphon System
• Identify Design QC Plan format &
contents in RFP
• All QC Plans approved by D-B QC Administrator
and accepted by Agency
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RFPDesign Quality Control Plans
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• Identify Major Work Items requiring QC Plans:
� Earthwork
� Bridge Substructure Elements
� Bridge Superstructure Elements
� Architectural Elements
� HMA/PCC Pavement
• Specify standard QC Plan format
• All QC Plans approved by D-B QC Administrator
and accepted by Agency14
RFPConstruction Quality Control Plans
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QC for D-B Pilot ProjectQC for D-B Pilot Project
The DB Entity develops a Comprehensive Quality Management Plan (QMP)
• The QMP contains the QC procedures for all design and construction activities and interactions
• The Department accepts the plan
• The DB Entity implements the plan as written
• The plan is expected to be revised if needed with the concurrence/acceptance of ConnDOT
The DB Entity develops a Comprehensive Quality Management Plan (QMP)
• The QMP contains the QC procedures for all design and construction activities and interactions
• The Department accepts the plan
• The DB Entity implements the plan as written
• The plan is expected to be revised if needed with the concurrence/acceptance of ConnDOT
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QC System ObjectivesQC System Objectives
• Ensure all elements of the project work meet or exceed the quality requirements set forth in the RFP and Contract
– Place the responsibility for achieving design and construction quality on the DB Entity
– Establish procedures for coordinating and ensuring consistency and quality of work
• Ensure all elements of the project work meet or exceed the quality requirements set forth in the RFP and Contract
– Place the responsibility for achieving design and construction quality on the DB Entity
– Establish procedures for coordinating and ensuring consistency and quality of work
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• Quality Control Administrator
– Responsible for overall management of the QC System
• Design Quality Control Manager
– Responsible for implementation of all Design QC procedures and activities
• Construction Quality Control Manager
– Responsible for implementation of all Construction QC
procedures and activities
• Quality Control Administrator
– Responsible for overall management of the QC System
• Design Quality Control Manager
– Responsible for implementation of all Design QC procedures and activities
• Construction Quality Control Manager
– Responsible for implementation of all Construction QC
procedures and activities
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DB Entity QC PersonnelDB Entity QC Personnel
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ConnDOT ResponsibilitiesConnDOT Responsibilities
• Review and acceptance of the QMP
• Monitor and ensure compliance with the QMP
• Participate in revision of the QMP if necessary
• Perform Design and Construction Acceptance activities
• Review and acceptance of the QMP
• Monitor and ensure compliance with the QMP
• Participate in revision of the QMP if necessary
• Perform Design and Construction Acceptance activities
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Discussion - Questions
D-B Procurement - RFP:
- D-B Entity QC Requirements
- Agency Acceptance Criteria
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Part 3
Design Quality Assurance:
Design-Builder QC System &
Agency Acceptance System
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Informal QC (by Frontline Design Staff)
• QC “Self-Check” Activities
• Coordination Activities with Construction
Formal QC (by Design QC Staff)
• Inter-discipline Reviews
• Independent Structural Design Checks
• Design Package Review at Key Milestones
(e.g., 75%, 100%)
Design-Builder Design QC System
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Design
QC Team
(Formal QC)
Design
Production
Team
(Frontline QC)
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Design QC Structure
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Design-Builder
Quality Control Administrator
Design
QC Team
Structured QC
� Formal
Checks
(Milestones)
Construction
QC Team
Structured QC
� Inspection
& Testing
(Random)
Design
Production
Staff
Frontline QC
� Self-Checks
� Coordination
Design
Manager
Construction
Production
Staff
Frontline QC
� Self-
Inspection
Construction
Manager
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Quality Management Plan (QMP)
• Documents all QC requirements and procedures
(both Design QC & Construction QC)
• Recommended Sections:
1. Introduction
2. QC Organization & Roles
3. Document Management Procedures
4. Design QC Procedures
5. Construction QC Procedures
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In-Progress Acceptance Activity (by Agency & FHWA Staff)
• “Over-the-Shoulder” In-Progress Design Reviews / Audits
Formal Acceptance (by Agency & FHWA Staff)
• Structure Type/Size/Location
• Design Packages - Formal Milestone Review & Acceptance
(e.g., 75% Design, 100% Plans & Specs, Release for Const. Packages)
Agency Design Acceptance System
Agency
Design
Acceptance
Staff
FHWA
Review/Acceptance
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Consultant
• Prelim. Design
• Tech. Assistance
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Agency
Project Manager
(District)
Design
Project
Engineer
(District)
Construction
Resident
Engineer
FHWA
Area Engineer
or
Major Project Engineer
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Consultant
• Prelim. Design
• Tech. Assistance
Recommended Design Acceptance Staff
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Design Quality Process
�Quality Management Plan (QMP)
�Discipline Checklists
�Designer QC process – checker, back checker
�Inter-discipline review / Constructability review
�Independent structural design check
�Design QC Team (formal QC process)
�Independent design input verification
�Agency / 3rd party review
�Comment Resolution
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Design Quality Process
�Quality Management Plan (QMP)
�Interim review (40-60%)
�Final review (100%)
�Released For Construction (RFC)
�Notice of Design Change (NDC)
�Field Design Change (FDC)
�Request For Information (RFI)
�Request For Information – Owner (RFIO)
�As-built Record Plans
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ConnDOT Design Responsibilities
ConnDOT Design Responsibilities
• Monitor DB Entity QC activity
• Design Acceptance actions
• Monitor DB Entity QC activity
• Design Acceptance actions
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Discussion - Questions
Design Quality Assurance:
- Design-Builder QC System
- Agency Acceptance System
- Design Quality Issues
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Part 4
Construction Quality Assurance:
FHWA TechBrief (April 2012)
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� Quality Assurance (QA):
(NOT specific role of one entity)
� Design-Builder Quality Control (QC)
� Agency Acceptance
� Agency Independent Assurance (IA)
Construction QA TechBrief (April 2012)
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Personnel
Qualification/
Certification
Dispute
Resolution
Independent
Assurance
(IA)
Laboratory
Accreditation
and
Qualification
Contractor
Quality
Control
(QC)
Agency
Acceptance
Construction QA Program Core Elements
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Informal QC (by Frontline “Production” Staff)
• QC “Self-Inspection” Activities
Formal QC (by Construction QC Staff)
• QC of Project Produced Items
• QC of Fabricated Structural Items
• QC of Standard Manufactured Items
• Accredited/Qualified QC Laboratories
• Qualified/Certified QC Personnel
Design-Builder Construction QC System
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Construction
QC Team
(Formal QC)
Construction
Production
Team
(Frontline QC)
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Construction QC Organization
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Design-Builder
Quality Control Administrator
Design
QC Team
Structured QC
� Formal
Checks
(Milestones)
Construction
QC Team
Structured QC
� Inspection
& Testing
(Random)
Design
Production
Staff
Frontline QC
� Self-Checks
� Coordination
Design
Manager
Construction
Production
Staff
Frontline QC
� Self-
Inspection
Construction
Manager
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Quality Management Plan (QMP)
• Documents all QC requirements and procedures
(both Design QC & Construction QC)
• Recommended Sections:
1. Introduction
2. QC Organization & Roles
3. Document Management Procedures
4. Design QC Procedures
5. Construction QC Procedures
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• Project Produced Materials– QC Inspection Schedules (Attributes, Lot/Sublot Sizes)
– QC Testing Schedules (Quality Characteristics, Lot/Sublot Sizes)
– QC Documentation & Data Analysis
• Fabricated Structural Materials– Fabricator QSMs (Fabricator QC Inspection & Testing)
– Project Site QC (Inspection & Testing Schedules)
• Standard Manufactured Materials– Manufacturer QSMs - AASHTO R38 (QC Inspection & Testing)
– Project Site QC (Review of Manufacturer COCs)
– QC Inspection (at Delivery, during Storage & Installation)
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QMP5.0 – Construction QC Procedures
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• Document project-specific Construction QC
requirements for Major Work Items:
� Earthwork
� HMA/PCC Pavement
� Drilled Shafts
� Bridge Superstructure
� Architectural Elements
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Construction QC Plans
QMP5.0 – Construction QC Procedures
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Agency Construction Acceptance
• All acceptance activities must be carried out by the Agency or their “Designated Agent”
• Agency independently performs:� Acceptance Inspection
� Acceptance (Verification) Testing
• Agency personnel Monitor/Audit Design-Builder QC activities:� Verify compliance with Quality Mgmt. Plan and QC Plans
Agency
Construction
Acceptance
Staff
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Agency
Project Manager
(District)
Design
Project
Engineer
(District)
Construction
Resident
Engineer
FHWA
Area Engineer
or
Major Project Engineer
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Consultant
• Prelim. Design
• Tech. Assistance
Example Agency Acceptance Staff
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• Attributes to be inspected which reflect quality
of finished product [637.207(a)(1)(i)(C)]
• Attributes for:
� D-B Quality Control
� Agency Acceptance
Inspection Attributes
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Inspection Attributes - Examples
Inspection ComponentQuality Control
Inspection Attributes
Acceptance
Inspection Attributes
Equipment
Mixer Drum Blade Condition N/A
Vibrator Frequency N/A
Finishing Machine Settings N/A
Environmental Conditions
Form Cleanliness N/A
Temperature of Air &
Contact SurfacesN/A
Materials
Aggregates & Cementitious Material
(Correct Type)
Aggregates & Cementitious Material
(Correct Type)
Admixtures (Correct Type & Dosage) Admixtures (Correct Type & Dosage)
Epoxy Reinforcement Bar
(Correct Type / Damage to Coating)
Epoxy Reinforcement Bar
(Correct Type / Damage to Coating)
Workmanship
Form Dimensions Form Dimensions
Reinforcement Bar Layout Reinforcement Bar Layout
Finished Dimensions Finished Dimensions
Surface Defects
(Honeycombing, Cracking)
Surface Defects
(Honeycombing, Cracking) 41
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• Two general approaches:
A. Use Agency Acceptance
(Verification) test data only for
the acceptance determination
B. Include Validated Contractor QC test data in the
acceptance determination
Testing Approaches for Acceptance
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• Design-Builder Quality Control
� Test each Sublot per Lot
• Agency Acceptance (Verification)
Approach A (Agency data only):
� Test each Sublot per Lot
Approach B (Agency data + Validated QC data):
� Test only some Sublots per Lot (e.g. 25% - 50%)
� For very large Projects/Lots, some Agencies
have used 10% - 20% frequency
Testing Frequency
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Independent Assurance
• Performed by Agency or Designated Agent personnel
who are not directly responsible for project Acceptance
sampling and testing or inspection
• Provides periodic independent
evaluation of QC and Acceptance
personnel and their equipment
• Not used to make a determination
of work quality or acceptability
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Example DB Project QA Organization
(Design QC Mgr)
Design
QC Team
Design
Quality
Control
(Const QC Mgr)
Construction
QC Team
Construction
Quality
Control
Agency
(Project Manager)
(Project Engineer)
Design
Acceptance
(Resident Engineer)
Construction
Acceptance
Agency
Independent
Assurance
Owner’s
Responsibility
Design-
Builder’s
Responsibility
Design-Builder
(Quality Control Administrator)
Design-Builder
(Project Manager)
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Design
Production Team
Frontline QC
Construction
Production Team
Frontline QC
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Construction Quality
�D-B Quality Management Plan
�Pre-activity Work Plan
�Quality Task Force Meetings
�Mimic Safety Program success factors
�Sub-contractor Quality management
�Build pride in workmanship
�NOT
�“It’s good enough.”
�“We don’t have time for inspection or testing.”
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Material Sampling & Testing
�Purpose of Design-Builder QC sampling/testing
�Ensure production/placement is “in control”
�Consistency of on-site material
�Statistical analysis of test data – risk of failure
�Concrete strength – 7 day vs. 28 day results
�Qualified Product List – or Approved Equal
�Reduced Agency sampling & testing rate?
�(Typical 25-50% - Very large quantities may see 10-20%)
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Inspection of Workmanship
�Who should be inspecting work?
�Foreman – completing standard checklist
�QC Team Inspector – Daily Inspection Report
�Agency managed CEI – or Agency staff
�Quality Check Point – Pass or Fail
�How much ‘Inspection’ is needed?
�Collect DATA to build confidence
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Construction Quality Wrap-Up
�Partnering between Agency and Design-Builder is the
biggest boost to Quality
�Everyone has a role to play – understand your role and
don’t duplicate
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ConnDOT Construction Responsibilities
ConnDOT Construction Responsibilities
• Construction Acceptance actions
– Monitor DB Entity QC activity
– Inspection
– Testing
• Independent Assurance (IA)
– By ConnDOT Division of Material Testing
• Dispute Resolution system
• Construction Acceptance actions
– Monitor DB Entity QC activity
– Inspection
– Testing
• Independent Assurance (IA)
– By ConnDOT Division of Material Testing
• Dispute Resolution system
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Discussion - Questions
Construction Quality Assurance:
- Design-Builder QC System
- Agency Acceptance System
- Agency Independent Assurance
- Construction Quality Issues
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SummaryConnDOT Pilot Approach
SummaryConnDOT Pilot Approach
• Promote DB Entity QC Procedures
• Provide sufficient data to ensure quality
• Review success and failures to improve future projects
• Promote DB Entity QC Procedures
• Provide sufficient data to ensure quality
• Review success and failures to improve future projects
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Thank YouThank You