Building a Virtual Bridge

From Design to Construction

#BIMForumED

Who we are

@PESengineers

• Structural Consulting Firm• Headquartered in Atlanta, GA• Small office in West Hartford, CT• 50‐person firm with 35 registered PEs• Projects small to large and simple to complex

Speakers• Licensed Professional Engineers• Over 25 years combined experience

BIM Director BIM Program Manager

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Background

@PESengineers

Modelers• Extensive Modeling Experience• Advanced BIM capabilities• Working Knowledge of Building Systems• Constructability Constraints• Collaborative

Engineers• Technical Experts• Knowledge of Multiple Systems & Materials• Code Experts

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Agenda

@PESengineers

• State of the Industry• Cross‐disciplinary Fluency• Constructability Modeling• Case Studies• Roundtable Discussion

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Evolution of Building

@PESengineers

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Current Climate

@PESengineers

Limit Liability

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Master Builder

@PESengineers

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BIM and Collaboration

@PESengineers

Two or more people working together towards shared goals

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Coordination

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Collaboration

@PESengineers

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Cross‐Disciplinary Fluency

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Cross‐Disciplinary Fluency

@PESengineers

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Training

@PESengineers

• Internal/On‐boarding• Detailers• Architects

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4D Project Planning Simulation

@PESengineers

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Constructability Modeling

@PESengineers

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What can we do?

@PESengineers

Utilize structural expertise, project knowledge and BIM capabilities to assist construction teams

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The Process

@PESengineers

• 3 Primary Phases

• Phase 1 – General Model

• Phase 2 – Framing Model

• Phase 3 – Documentation

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General Building

@PESengineers

• Phase I model identifies coordination gaps not uncovered during 2D drawing development

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Framing Model

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• Phase II model focuses on repetitive members to flush out conflicts

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Documentation

@PESengineers

• Phase III generates panel drawings for field use

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Case Studies

@PESengineers

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Case Study #1

@PESengineers

Multi‐Family Project• 4‐story wood framing on partial podium • Apartments wrap parking deck• Level misalignment between wood framing and precast parking deck• Edge of slab dimensional bust

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Case Study #2

@PESengineers

Multi‐Family Project • 5‐story wood framing on transfer podium • Dimensions in unit plans inconsistently reference f/stud and f/finish wall • Resulted in large discrepancies in overall dimensions

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Case Study #3

@PESengineers

Hospitality• 4 stories wood framing• discrepancies between architectural grid and structural grid dimensions. • Slab poured using structural grids and steel fabricated using the architectural grids. 

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Case Study #4

@PESengineers

Hospitality • 4 stories wood framing over underground parking• Post‐tension transfer podium• MEP penetrations were modeled and coordinated with all of the PT, then the 

penetration locations were provided to the surveyor for accurate locations. • Geofoam modeling and detailing using dynamo

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Case Study #5

@PESengineers

Hospitality  • 4‐story wood framing with steel framed amenity space• Bottom of steel coordination with prefab wood wall panels• Space in plenum for ductwork

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RoundtableDiscussion 

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Roundtable Discussion

@PESengineers

Do you feel that you are blurring the line on scope when collaborating effectively?

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Roundtable Discussion

@PESengineers

Will the master builder role make a resurgence or are problems of today far too complex for one person to be able to solve?

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Roundtable Discussion

@PESengineers

Is the industry‐wide approach to limit scope in an effort to minimize liability as beneficial as intended?

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Roundtable Discussion

@PESengineers

Should designers always defer means and methods to contractor?

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Questions & Answers

Matt Sweeney | msweeney@pesengineers.com | (770) 457‐5923David Aucoin | daucoin@pesengineers.com | (860) 479‐1737

www.pesengineers.com