Building information modeling
- 1. Building Information Modeling What Does it Mean for the Electrical Engineer? John Griffiths PE Geoff Gunn PE Anthony Fresquez
- 2. 2 Presentation Overview BIM Overview BIM in Detail BIM Project Management Question and Answer BIM Demonstration
- 4. 6 What is BIM? Building Information Modeling “digital representation of physical and functional characteristics of a facility” National Institute of Building Sciences, Model Standard 22 (2007)
- 5. 7 What is BIM? Building Information Modeling BIM means radically different things to different people Use often limited to 3D drafting
- 6. 9 Building Information Modeling Load, voltage, type 3D - size, location, routing
- 7. 10 BIM to an Owner Opportunity to take advantage of new technology and skills to add value to their projects - Build more for less - Opportunity Reduce Risk - Control Cost - Manage Schedule - Use BIM model throughout the life of the building
- 8. 11 BIM to a Design Engineer Allow the engineer to combine all the design process and information a single model to streamline the creation and production of designs Better coordinated designs Faster response to design changes Increase accuracy (schedules) Sustainability
- 9. 12 BIM to a Contractor Allows the contractor to improve efficiencies and streamline the construction process - Encourages collaboration - Reduce risk and improve construction predictability - Allows for better examination of alternates - More efficient layouts and networks - Compatible with LEAN “most effective when contractor engaged early and often in the design phase”
- 10. 13 Turning Expectations into Reality Understand the Value Point for all stakeholders Clearly define expectations and deliverables early in process Be realistic about capabilities and limitations of the BIM delivery method
- 11. 14 Turning Expectations into Reality Clearly define expectations and deliverables early in process Understand the Value Point for all stakeholders Be realistic about capabilities and limitations of the BIM delivery method well….doesn't Revit do that?
- 12. 15 Define Expectations “This project will utilize Building Information Management (BIM) strategies and protocols, to assist in the design and construction process” Extract from a recent RFP Big BIM or Little BIM?
- 14. 17 BIM – In Detail Geoff Gunn PE
- 15. 18 BIM – In Detail Capabilities Overview “How BIM’s supposed to work” Case Study “How BIM actually works”
- 16. 19 BIM – Software Setup Electrical Project Database (EPD) Smart Panels Drawing Power & Signal Lighting Fire Alarm Smart Panels Drawing ANTHONY TO CHANGE AutoCAD MEP Revit MEP
- 17. 20 BIM – 3D Modeling
- 18. 21 BIM – Intelligent Devices
- 19. 22 BIM - Really Intelligent Devices
- 20. 23 BIM - Intelligent Device Circuiting
- 21. 24 BIM - Intelligent Drawings
- 22. 25 BIM - Intelligent Panels Smart Panels Drawing
- 23. 26 BIM - Intelligent Schedules Generates Panelboard schedules that are directly linked to your design. As your design changes schedules are automatically updated` Reduces potential for errors Architects: Anshen + Allen
- 24. 27 BIM – Case Study – UCSF Medical Center Architects: Stantec Hospital Outpatient Building Future Outpatient Cancer Building Energy Center
- 25. 28 BIM – Case Study – UCSF Medical Center Energy Center Statistics 3 Buildings Hospital – 289 patient beds Outpatient building Energy Center Total Building Area – 878,000 sf Total Electrical Load – 16.5MW
- 26. 29 BIM – Case Study – Project Timeline 2007 Project Start SD phase completed Design started in AutoCAD MEP 2008 2008 DD phase completed 2009 50% CD completed Project “upgraded” to AutoCAD MEP 2010 2010 100% CD completed 2011 OSHPD permit received
- 27. 30 BIM – Case Study – File Setup Working drawings limited to approx 20k sf due to computer speed.
- 28. 31 BIM – Case Study – File Setup Electrical Project Database (EPD) and Smart Panels 24 Power Drawings 23 Lighting Drawings Hospital Electrical Project Database (EPD) and Smart Panels 17 Power Drawings 15 Lighting Drawings Hospital Electrical Project Database (EPD) and Smart Panels 3 Power Drawings 3 Lighting Drawings Hospital No way to link EPDs together from each building 88 total BIM drawings
- 29. 32 BIM – Case Study – Complications AutoCAD MEP 2008 Our version was heavily customized in order to realize maximum BIM potential Maximum size of EPD file due to 64-bit computers not being supported AutoCAD MEP 2010 Automatic Transfer Switches are not supported Panelboard schedules did not meet OSHPD requirements out of the box No way to link EPD files from different projects Some circuit loads were mis-recorded
- 30. 33 BIM – Case Study – Lessons Learned Proper project setup essential All devices, demand factor styles, file structures, etc. should be properly setup before any circuiting is started Slow and Steady work flow Adding extra BIM technicians and Engineers to meet a deadline often results in crashes or corrupted files Hardware and Software limitations Limits due to hardware or software performance should be reviewed in advance
- 31. 34 BIM – Management Anthony Fresquez
- 32. 35 BIM Management Managing Arup BIM Team 4 Electrical BIM Technicians 3 Mechanical BIM Technicians 3 plumbing BIM Technicians 4 Structural BIM Technicians 90+ SMEP Engineers University of California, Davis Physical Sciences Expansion – Perkins & Will Architects Release 9
- 33. 36 BIM Management Work Culture Communication Challenges Time Management Software Hardware Next Steps
- 34. 37 Work Culture Transition from 2D CAD to 3D Modeling Performing design within software Increased roles and responsibility performing 3D coordination Due to design skill specialization staff cannot switch easily between disciplines Hiring profile change seeking people with design experience Recognizing some people may not make the transition
- 35. 38 Communication Communication is critical and occurs at a higher level within design team. - Entire team must understand engineering concepts - Team members are not easily replaceable. Model is very sensitive, because it is dynamic, which necessitates more reviews and back checks. Not just hard clashes, also soft checking Demand Factors, Loads, Voltage Challenges
- 36. 39 BIM Management Time management Training - Formal training is recommended. Train the trainer method not beneficial. Resourcing - Plan ahead to avoid last minute allocation of resources as it’s difficult to find contract resources with BIM skills. Workflow - Multiple users saving to EPD file caused software to crash with AutoCAD MEP 2010. Issued resolved with AutoCAD MEP 2011 Trouble shooting - Plan on it you’re going to spend plenty of time solving problems, especially around deadlines.
- 37. 40 BIM Management Software Constantly releasing new versions - Autodesk has committed to releasing a new version of the every year which can present a problem as projects can continue for 5+ years - Difficulty upgrading to the new release as upgrading to new could impact the display of AEC objects or new drawing format. Licenses, various platforms, support - Distributed server configuration - Suite base products AutoCAD and Revit Structure, AutoCAD MEP and Revit MEP plus we also use Navisworks. - Autodesk Subscription online support - Autodesk reseller ‘Ideate’ training, user groups and support.
- 38. 41 BIM Management Hardware HP Z400 Workstation, Genuine Windows® 7 Professional 64-bit OS 10,000RPM 320gb Hard Drive Intel® Xeon® 23350 3.06, 8MB/1066 QC CPU 16GB (4x4gb) DDR3-1333 MHz/PC3 10600-unbuffered- ECC RAM NVIDIA Quadro FX3800 1GB Graphics Card Dual Monitors is essential when working within the model environment.
- 39. 42 Next Steps Revit MEP - Recognized as industry standard for design firms Capture I in BIM - Information is key - Superior scheduling functionally - Single model allows better design processes More capabilities - Ideal workflow with architectural revit model - More efficient 3D coordination and production tool - Content development from manufacturers Link to e-Specs - Interfaces with Revit's parametric database, instantly updating your project specifications to the requirements of the building model
- 40. 43 Building and Maintaining Relationships Beta-Testing program: - Revit Structure - AutoCAD MEP - Revit MEP - Navisworks - Microstation Structural Triforma Working with Software Designer to ensure software meets the demands of the design industry
- 41. 44 Summary Great potential Increased accuracy Increased productivity Major Challenges Steep learning curve High entry cost - Training - Software & Hardware BIM is here to stay!