BE Magazine - Volume 4, Issue 4 - (Page 19)

BUILDING perfect opportunity to work with the project team to use that technology and strategically position GSA to achieve our design and development objectives.” PSA-Dewberry used an assortment of Bentley products. While MicroStation handled 2D work, the 3D modeling took place in several applications: Bentley Architecture, Bentley Electric, Bentley Mechanical, Bentley Structural, and GEOPAK. Using the same basic tools and ﬁle format across all disciplines greatly reduced staff time needed to set up and manage the project. The 3D model helped team members—consisting of Brandon Buchner, Jason Coffman, Nate England, Blake Gleason, Rob Herrick, Sam Hudson, Mike Justice, Mike McTavish, Ed Page, Evan Spirrison, Matt Wilner, and Luke Wirtz—move past their own discipline’s viewpoint to see the complete building. The ability to view all elements in 3D revealed issues that were overlooked in 2D reviews. The design team used the building model to evaluate various materials to see how they connected and interacted in light of security requirements. For instance, controlling ﬂoor-to-ﬂoor heights as well as maintaining high ceilings in the courtrooms and open spaces were two goals that were in direct conﬂict. PSA-Dewberry designers used 3D models to optimize the placement of the mechanical system in the limited space available. The ability to quickly modify the 3D model allowed the team to explore routing options, duct forms, and various delivery methods. PROJECT United States Courthouse OVERVIEW Organization PSA-Dewberry BE Awards Category BIM for Visualization and Simulation Project Objective Adopt 3D BIM to design a new courthouse that meets requirements for security, public access, expandability, and integration with surrounding area ﬂoors beneﬁt from borrowed light from both the atrium and the public corridor to the east. The 193,000-square-foot courthouse complies with GSA’s Design Excellence Criteria and GSA/ISC Design Criteria for Courthouses and Federal Facilities. The selection of exterior material was critical in the design of the building because of the need to meet ISC blast requirements. The design team speciﬁed a combination of natural and cast stone, and the exterior glazing system uses standard curtain wall elements that are used as inﬁll panels for the grid of cast stone elements. Clear, translucent ﬁtted glass panels, as well as metal panels, are glazed into the curtain wall to create a dynamic layering of materials and transparencies. Environmental considerations also factored into the building design, since the new courthouse will seek to earn LEED Silver certiﬁcation from the U.S. Green Building Council. The role of BIM GSA turned to PSA-Dewberry to construct a 3D model of the project prior to the project being bid. Before the building information modeling (BIM) took place, PSA-Dewberry held team meetings to discuss client expectations, work distribution, ﬁle and model breakdowns, and project deadlines. Because most of the team was not familiar with BIM, PSA-Dewberry incorporated a review of the actual 3D model into its team meetings. A workstation with a projector was used to display the 3D model. In addition to cost savings on paper and staff time, this process allowed the team to discuss the reasons for the placement of particular elements and to explore alternatives. This method effectively forced each discipline to review how its data worked together with the other disciplines. “BIM is a great visual communication tool, but it does not replace the dialog that needs to occur among team members within a given discipline. While the communication does not always happen as it should, there is no disputing the value of seeing the actual elements in the 3D building space,” said Kirk Stuaan, IT operations manager at PSA-Dewberry. Michelle M. Wehrle, GSA project manager, added, “BIM technology enables closer collaboration. The Rockford Courthouse was a v The 197,000-square-foot courthouse complies with GSA’s Design Excellence Criteria and GSA/ISC Design Criteria for Courthouses and Federal Facilities BIM enabled PSA-Dewberry to create a proof-of-concept model for GSA to validate the systems and components for each discipline. Gerry Guerrero, project manager for PSA-Dewberry, estimates that using BIM on the project may potentially decrease the percentage of construction-related change orders by 60 percent, which translates to a potential construction cost savings of 0.25 to 0.5 percent. PSA-Dewberry also anticipates the possibility of cutting Volume 4, Issue 4 | BE MAGAZINE 19

Table of Contents Feed for the Digital Edition of BE Magazine - Volume 4, Issue 4

BE Magazine - Volume 4, issue 4 Contents The Drive To Innovate News BE Newsletter Highlights Converging on the Market Bytes and Bricks Generative Components Building Courting Success Remodeling an Icon Structural Integration Building News From Bentley Civil Greenfield Airport Takes Flight Good Neighbors Collaborative Innovation Civil News From Bentley Advertisers Index Geospatial Ring of Fiber Revolutionizing Integrity Management Port City Transformation In Conversation With Greg Bentley Geospatial News From Bentley Plant Single-Source Service Committed to Cleaner Air Expediting Expansion Plant News From Bentley Strength in Numbers The Art of Visualization A Winning Legacy Zero Change Culture: Further Definition A Remarkable Collaboration With a Forward-Thinking Community

BE Magazine - Volume 4, Issue 4

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