Transcript 3-D Modeling: The Advantages and Disadvantages of a BIM Resource Sami Boulos

3-D Modeling:
The Advantages and Disadvantages
of a BIM Resource
Sami Boulos
Construction Management
Faculty Consultant: Dr. Riley
The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Credits/Acknowledgements
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Project Introduction
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Depth Topic – Building Information Modeling
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Breadth Topics
◦ Acoustical Study
◦ Building Envelope Study
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Questions & Answers
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley
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
The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Size: 450,000 SF
Owner-
◦ 10 stories above grade, 13
total
◦ State-of-the-art facility;
going for LEED™ Silver
rating
CM –
William A. Berry & Son, Inc.
Total cost: $230 Million
Construction:
◦ Start: October 2005
◦ Complete: April 2008
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Location: Boston
◦ Neighbors Dana Farber Cancer
Institute and Harvard Medical
School
Partners Healthcare System
Architect –
Cannon Design and
Chan Krieger & Associates
Structural Engr –
McNamara/Salvia Inc.
MEP/Fire Protection –
BR+A, Bard Rao and Athanas
RW Sullivan, Inc.
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley
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
The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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134 new patient rooms for Brigham &
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◦ Steel frame with Concrete
caissons, piles, retention
foundation walls
Women’s Hospital
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Location provides for medical students
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a “research campus”
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Floor 4 and 4M:
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Mechanical/Electrical equipment
Floors 5-10:
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Administrative offices
Mixed uses, café space & shopping
Patient Rooms
Delivery Method: CM @ Risk
Mechanical
◦ 19 Air handlers provide
640,300 CFM total
◦ (3) 800-ton Cooling Towers
provide 4,800 GPM each
Floors 1-3:
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Structural
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Electrical
◦ 15 kV switchgear for both
480/277V and 208/120 V
systems
◦ Diesel generators for
emergency power
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Overview
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Criteria for success
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BIM/ 3D modeling Synopsis
◦ External Research
◦ Project details
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3D modeling Advantages
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3D modeling Disadvantages
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Conclusion/Recommendation
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Why BIM?
◦ PACE Roundtable – One of 3 major industry issues today
◦ The Future of the industry
◦ Personal Interest
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Project Specific
◦ High Profile Project – familiar owner
◦ High Level of MEP Coordination
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

BIM today
◦ Used predominantly for 3D coordination, especially
with the MEP trades
◦ Only certain members of industry utilize BIM tools,
i.e. architects, MEPs, and CMs
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Problem Statement
◦ BIM tools growing in the industry today, but
opposition still exists, causing the BIM push to
stagnate and not reach its full potential.
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Provide some advantages and disadvantages
to the BIM tools in the industry today
Relate BIM to this project
◦ Which tool(s) of BIM used?
◦ Successful/unsuccessful with that tool?
◦ Provide opinions and illustrate research
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Come to a conclusion and recommendation
◦ Is it logical?
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

BIM ≠ 3D Modeling
◦ 2 separate concepts, but tools similar
◦ 3D model is an aspect of BIM
◦ BIM model incorporates:
 3D representation of 2D drawing
 Cost and schedule data
 Materials Information
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Future of BIM
◦ GSA: BIM Standard procedures for all new federal projects
◦ Increasing demand from owners
◦ Provides for faster, better quality projects at lower costs
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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BIM Drawbacks
◦ Industry
 Some trades and companies not applying 3D models to
projects
 New contract models not being written, legal
ramifications not addressed
 What happens to Design-Bid-Build process?
◦ Experience vs. Inexperience
 New workforce members need 3D models to visualize 2D
drawings
 Veteran members can already “see” in 3D.
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Industry Poll
◦ Research of articles and survey of AE Construction
Mentors revealed:
 BIM becoming more prominent part of projects
 Software used for modeling:
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Autodesk REVIT and REVIT Structural
AutoCAD 3D, AutoCAD MEP
Innovaya – for Estimating
Microstation
Project Specific
◦ Fully Integrated BIM was not used
 3D Model for MEP coordination
◦ Survey of Berry staff results
 Berry incorporating VICO 5D Presenter - MIT
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
Advantages
Disadvantages
Early clash detection for MEP trades
High initial cost and training
Better, simpler visualization of ideas
One model or several models, and if several, can they work together?
Increase quality of work through entire team having better
knowledge of the project
Contractual obligations unclear; who provides the model?
Compatibility of Technologies
Compatibility of Technologies
When done correctly, BIM can elicit a higher quality building
faster and at a lower cost
Ownership of BIM model after project completion; to the owner, architect, or
facility maintenance?
Generational Gap – the experienced team members do not need a 3D model to
visualize the 2D drawings, they already think in 3D.
No metrics exist to evaluate success or failure of BIM, nor to assess the cost
savings of BIM
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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One major component
against BIM is Cost
 Software/technology
 Employee to operate
 Exact cost unknown for
Berry, but 1-2 employees
operate and maintain the
models for entire company
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Schedule Implications
 Use of BIM = up front
time to make model
 Time savings via early
problem ID
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Value Added
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Applying more efforts with
3D modeling and BIM gives
a much better quality
project
More knowledge about
project, better
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

BIM and 3D Modeling will lead the
construction industry of the future
 Efforts by GSA, companies like Berry, PSU AE
 Better visualization = better projects
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For the Carl J. & Ruth Shapiro Project
◦ 3D modeling only for MEP coordination
◦ Breadth topics to discuss any further 3D endeavors
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Industry: continue improvements via BIM
◦ More integration of 3D models:
 Sequencing of project phases –
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Excavation
Superstructure
Building Envelope
MEP
Finishes
 3D models to accompany coordination drawings
 As-Builts in 3D for maintenance staff of building
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Project Recommendation
◦ Follows Breadth analyses
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Analysis 1 – Acoustical Study 10th floor VIP
rooms
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Existing Conditions/ Success Criteria
Redesign and calculations
Results and conclusion
Recommendation
Analysis 2 – Building Envelope
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Existing Conditions and Success Criteria
Redesign and calculations
Results and conclusion
Recommendation
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Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley

The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

10th Floor – VIP Patient Rooms
◦ Sound sources include Air Handling
Units, Cooling Towers, Compressors
◦ Strict rules for sound attenuation in
hospitals
◦ Research if acoustical system overdesigned for space.
 Acoustician = Cavanaugh & Tocci
Associates, Inc.
Picture of Rooftop AHUs and Cooling Towers
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Over-designed?
 Examined the system as
installed
 Trane Acoustical Program
used to estimate acoustical
values for Source dB.
 NC>65
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Conclusion
 Acoustical Design ok
 Meets required design criteria by owner
 Added challenge due to restriction of duct-lined
insulation
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Recommendation
 Use design by Acoustician
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BIM Consideration
 Research into incorporating TAP as part of BIM
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Curtainwall of glass, aluminum
 Random pattern aesthetic on exterior of building
 Original design: 9 different types of glass and
aluminum
 Architect Design Change: 43 different types of glass
and aluminum
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Research:
 Reason for the change
 Implications on the project
 Conclusions
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Justification
◦ Was there structural
considerations that
prompted change in
design?
 Conversation with the
Project Manager and
Curtainwall contractor.
Change for aesthetics
only.
View of existing curtainwall pattern
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Implications:
◦ Mechanical System Impact
◦ Aesthetic effect made
◦ Cost, Schedule, Value-Added
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Mechanical System Effect
 Change to design alter % glass to envelope
 Increase glass = increase solar gain to space/building
 Trane Trace calculation
 Simple building envelope calculation to test solar gain effect
of design change.
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley
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
The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Effect of % Glass on Mechanical System
◦ The higher % glass, the more heating or cooling needed in a
space = higher cost and more energy consumption
35% glass
55% glass
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
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Aesthetic Effect
◦ Desire to make exterior
pattern more random
 Utilize many tints of glass
& Aluminum
◦ Effect not attained after
construction of design
change
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Cost, Schedule, Value
◦ Cost
 Approx. $2 Million for 43 glass types
 Increased Heating/Cooling costs, energy consumption
◦ Project Schedule not affected
◦ Value added:
 In theory yes because of random pattern
 In actuality, no distinguishable change
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Conclusion
◦ Architect’s change achieved minimal aesthetic improvement
 Cost increase, no schedule impact, minimal value added
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Recommendation
◦ Return to original design
◦ Cost savings > $2 million
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BIM Consideration
 A 3D model would have been too precise to illustrate the
aesthetic differential.
 BIM model to illustrate solar calculations
 Not used on this project, but capability exists in industry
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA

Many issues, many solutions
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One change affects many components
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3D Modeling becoming the norm
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley


The Carl J. & Ruth Shapiro Cardiovascular Center
at Brigham & Women’s Hospital
Boston, MA
Sami Boulos
 Construction Management
Faculty Consultant: Dr. Riley

