3-D Modeling: The Advantages and Disadvantages of a BIM Resource Sami Boulos
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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 Credits/Acknowledgements Project Introduction Depth Topic – Building Information Modeling Breadth Topics ◦ Acoustical Study ◦ Building Envelope Study Questions & Answers Sami Boulos Construction Management Faculty Consultant: Dr. Riley The Carl J. & Ruth Shapiro Cardiovascular Center at Brigham & Women’s Hospital Boston, MA 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 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 The Carl J. & Ruth Shapiro Cardiovascular Center at Brigham & Women’s Hospital Boston, MA 134 new patient rooms for Brigham & ◦ Steel frame with Concrete caissons, piles, retention foundation walls Women’s Hospital Location provides for medical students a “research campus” Floor 4 and 4M: Mechanical/Electrical equipment Floors 5-10: 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: Structural 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 Criteria for success BIM/ 3D modeling Synopsis ◦ External Research ◦ Project details 3D modeling Advantages 3D modeling Disadvantages 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 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 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 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 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 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 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: 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 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 Schedule Implications Use of BIM = up front time to make model Time savings via early problem ID Value Added 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 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 – Excavation Superstructure Building Envelope MEP Finishes 3D models to accompany coordination drawings As-Builts in 3D for maintenance staff of building 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 Analysis 1 – Acoustical Study 10th floor VIP rooms ◦ ◦ ◦ ◦ Existing Conditions/ Success Criteria Redesign and calculations Results and conclusion Recommendation Analysis 2 – Building Envelope ◦ ◦ ◦ ◦ Existing Conditions and Success Criteria Redesign and calculations Results and conclusion Recommendation 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 Recommendation Use design by Acoustician 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 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 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 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 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 The Carl J. & Ruth Shapiro Cardiovascular Center at Brigham & Women’s Hospital Boston, MA 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 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 Recommendation ◦ Return to original design ◦ Cost savings > $2 million 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 One change affects many components 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
