Integrating Detailing and Engineering: A Mechanical Design Builders Approach

1
Integrating Detailing and EngineeringA
Mechanical Design Builders Approach
Victor Sanvido, Michael McLaughlin, Scott Muxen,
George Benoit September 2004
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Presentation Outline

• Integrating the Design Build Process
• Healthcare Case Study
• Design Assist Integration
• Design Detail Build Integration
• Design Detail Build Benefits

3
Integrating the Design Build Process Process
Theory
Gaps
Traditional Design Bid Build (Plan Spec)
Gaps
Conventional Design Assist/Design Build
Design - Detail - Build
Complete, Fully Engineered Coordinated
Constructible Cost Effective, Innovative
Design Meets Project Quality, Performance, Budget
and Schedule Requirements
Design Start
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Healthcare Case Study

• 257,000 sq.ft Acute Care Hospital
• Emergency Department, Operating Suite, Imaging,
  Diagnostic Test, In-Patient Facilities
• Design Build HVAC Ductwork, Piping, Plumbing,
  Medical Gas Systems Fire Protection

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Design Assist Integration (Engineer already
engaged by Project Team)
Pre-construction Roles Responsibilities

• Contractor Design Assistance
• Design Specification Review
• Value Analysis / Options
• Construct-ability Review / Spot Detailing
• Preliminary Trade Coordination
• Cost Feedback (Estimating Services)

• Engineer - Construction Documents
• Performance Criteria, Code Compliance
• Calculations
• Equipment Selections
• Smart Drafted Floor Plans
• Flow/Riser Diagrams
• Smart Details
• Smart Specifications

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Design Assist Process
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
1
2
5
6
3
4
Final Estimate
95 Estimate
30 Estimate
60 Estimate

• Pricing, Options Value Analysis
• Design Team Engineering
• Spot Detailing (Constructability Review)

• Construction/ Fabrication Detailing
• Trade Coordination
• Construction

7
Design Assist Process Challenges
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
1
2
5
6
3
4
Final Estimate
95 Estimate
30 Estimate
60 Estimate

• Gaps in Information Hand-off
• Multiple Drawing Sets for Review by City,
  Inspectors, Owner
• Deferred Drawing Packages (Seismic Anchoring,
  Fire Protection, Shop Drawings)
• Increased Risk of Construction RFIs and Change
  Orders

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Design Build Integration (In-House Design Build
Team engaged by Project Team)
Pre-construction Roles Responsibilities

• Right Size Calculations
• Sweet Spot Equipment Selections
• Constructible Details
• Applicable Specifications
• Integrated Design / Cost Control

• Performance Criteria, Code Compliance
• Smart Drafted Floor Plans
• Smart Design Coordination
• Flow/Riser Diagrams

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Design Detail Build Process
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
1
2
6
5
3
4

• Pricing, Options Value Analysis
• Design Team Engineering
• Design Team Detailing Integration

• Construction / Fabrication Detailing
• Integral Trade Coordination
• Construction

Single Set of Documents Engineering Documents
with Detailed Floor Plans
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Design Assist
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
1
2
5
6
3
4

• Design Detail Build

PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
1
2
6
5
3
4
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Pricing, Options and Value Engineering
1.
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
5
6
5
3
4
95 Estimate
Final Estimate
30 Estimate
60 Estimate

• Performance Criteria Review
• Load Calculations Review
• Optimization of Central Plant

• Right Sizing Routing of Systems
• Specification Review
• Trade Coordination Review

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Engineering Team Responsibilities
2.
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
5
6
5
3
4
Final Estimate
95 Estimate
60 Estimate
30 Estimate

• Core Engineering Activities - Performance
  Criteria, Code Analysis, Calculations, System
  Sizing, Equipment Selection, etc.
• Redlines of System Routing with Sizing
• Lead Specification Preparation

• Lead Coordination with Design Team Members
  (Architect, Structural)
• Facilitate Coordination with other Trades
  (Electrical, Pneumatic Tube, Fire Protection,
  Plumbing)

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Integration of Detailing Team
3.
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
5
6
5
3
4
Final Estimate
95 Estimate
60 Estimate
30 Estimate

• Relocate Key Players into Project Area
• Integrate Engineering and Detailing CAD Systems

• Identify Project Goals with Team
• Recognize Optimized Use of Resources
• Identify Team Roles Responsibilities

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Construction/Fabrication Detailing
4.
CONSTRUCTION
PRE-CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
5
6
5
3
4
Final Estimate
95 Estimate
30 Estimate
60 Estimate

• Phase I Pre Plan Check
• Convert Engineering Redlines into Finished 3D
  Floor Plans for Plan Check
• Dimension Elevate all Systems
• Fully Coordinate with all Trades
• Seismic Anchoring Package Complete

• Phase II Post Plan Check (Construction)
• Add Fabrication/ Construction Information (spool
  sheets, CNC download data, etc)
• Incorporate Procured Equipment Shop Drawings
• Add Foremen Requested Information
• Final Trade Coordination

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Integral Trade Coordination
5.
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
5
6
5
4
3
Final Estimate
95 Estimate
30 Estimate
60 Estimate

• Trade coordination occurs during design phase
  with actual detailing information, real dimension
  and routing
• Detailers have direct influence on design
  development - prior to plan check review or
  Issue for Construction rigidity

• Significant reduction of costly construction
  administration (RFI, change orders, schedule
  impacts, etc.)
• Real time coordination using 3D CAD models
• Seamless design and coordination information
• Full trade impact evaluation of design changes

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Construction
6.
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
6
5
4
3
Final Estimate
95 Estimate
30 Estimate
60 Estimate

• Construction starts with complete, fully
  engineered, coordinated constructiblecost
  effective, innovative design.Meets project
  quality, performance, budget and schedule
  requirements

• Specialty Contractors in position to pull General
  Construction, rather than traditional push method.

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Estimating
7.
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
Backcheck 2
1
2
5
6
4
3
Final Estimate
95 Estimate
30 Estimate
60 Estimate

• Real time project cost control and management
  during design development
• Estimating transforms from conceptual budgeting
  to hard take-off estimating during
  pre-construction effort

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Design/Detail-Build Benefits
PRE-CONSTRUCTION
CONSTRUCTION
Plan Check
Permit
Backcheck 1
1
2
6
5
3
4

• Single Set of Fully Coordinated, Engineered and
  Constructible Documents
• Reduced Burden on both Engineering Production /
  Detailing Production
• Efficient Use of Resources
• Single Drawing Set for Code Authority Review
• No Deferred Approvals (Seismic Anchoring, Fire
  Protection, Shop Drawings)
• Significantly Reduced Construction RFIs and
  Change Orders

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Closing Remarks
Successful Design-Bid-Build is more than just 3D
CAD software, construct-ability feedback, or cost
control during the design phase. Its about
getting the right people to do the tasks at which
they are best, and providing a forum for seamless
communication through-out the design and
construction process.
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Questions