Virtual Factory

Virtual Factory PowerPoint PPT Presentation


Lack of an integrated system for 3D object construction from 2D stereo images ... Surface topology construction from a set of scattered 3D points ...

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Virtual Factory

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1. Sami Boulos Construction Management Faculty Consultant: Dr. Riley

2. Credits/Acknowledgements Project Introduction Depth Topic – Building Information Modeling Breadth Topics Acoustical Study Building Envelope Study Questions & Answers

3. Size: 450,000 SF 10 stories above grade, 13 total State-of-the-art facility; going for LEED™ Silver rating Total cost: $230 Million Construction: Start: October 2005 Complete: April 2008 Location: Boston Neighbors Dana Farber Cancer Institute and Harvard Medical School

4. Structural Steel frame with Concrete caissons, piles, retention foundation walls Mechanical 19 Air handlers provide 640,300 CFM total (3) 800-ton Cooling Towers provide 4,800 GPM each Electrical 15 kV switchgear for both 480/277V and 208/120 V systems Diesel generators for emergency power

6. Overview Criteria for success BIM/ 3D modeling Synopsis External Research Project details 3D modeling Advantages 3D modeling Disadvantages Conclusion/Recommendation

7. 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

8. 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.

9. 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?

10. 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

11. 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.

12. 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

14. Schedule Implications Use of BIM = up front time to make model Time savings via early problem ID

15. 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

16. 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

17. 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

18. 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 over-designed for space. Acoustician = Cavanaugh & Tocci Associates, Inc.

19. Over-designed? Examined the system as installed Trane Acoustical Program used to estimate acoustical values for Source dB. NC>65

20. 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

21. 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

22. Justification Was there structural considerations that prompted change in design? Conversation with the Project Manager and Curtainwall contractor. Change for aesthetics only.

23. Implications: Mechanical System Impact Aesthetic effect made Cost, Schedule, Value-Added

24. 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.

25. Effect of % Glass on Mechanical System The higher % glass, the more heating or cooling needed in a space = higher cost and more energy consumption

26. Aesthetic Effect Desire to make exterior pattern more random Utilize many tints of glass & Aluminum Effect not attained after construction of design change

27. 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

28. 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

29. Many issues, many solutions One change affects many components 3D Modeling becoming the norm

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