BE Magazine - Volume 4, Issue 4 - (Page 20)

BUILDING v BIM enabled PSA-Dewberry to create a proof-of-concept model to validate the systems and components for each discipline a month or two from the project’s construction time line, as well as saving about 250 to 400 hours of staff time needed to process such construction-related requests. In adopting BIM, PSA-Dewberry incurred costs for training. However, the ﬁrm believes that those costs have been recouped through overall project efﬁciencies. PSA-Dewberry’s BIM experience will also position it to meet yet another GSA requirement on projects—the use of BIM software in the building design phase. BE Award Winner Remodeling an Icon Sydney Opera House adopts BIM to guide renovations, manage facilities (architectural and structural), and specialists in acoustics, ﬁre, and theater planning. The team’s assignment was to create a base asbuilt model for the structural, architectural, and selected MEP components of the building. The 1,547-seat Opera Theatre is used for opera, ballet, and other dance performances. The record information maintained by the partner ﬁrms proved invaluable in creating the Opera Theatre existing-conditions model. However, it took considerable time to sort through the large amount of historical and recent construction documentation to ﬁnd the relevant information for the asbuilt model. BIM forms the foundation for further internal building studies and scheme documentation, ensuring conﬁdence in the redistribution of internal space and existing structural constraints. At the start of the project, the architect and structural engineers used a single software platform—Bentley Architecture and Bentley Structural—to ensure interoperability between their models. Later, MEP consulting engineers Steensen Varming joined the project, using the same software platform. “Early experiments in using other software packages demonstrated severe difﬁculties in creating the geometry, with less-thandesirable results when creating section ﬁles,” said Stuart Bull, Arup BIM coordinator. “When the rib/shell structure model was converted into another software package, the ﬁle size increased tenfold, making it virtually impossible to manipulate the model.” Because of the complexity of the acoustic paneling throughout the auditorium, the team engaged a building surveyor to conduct a 3D laser-scanning survey. The resulting point cloud, accurate to ±20 millimeters, was converted to a surface model, which became the base model for an acoustic panel model to be used in acoustic analysis software. Working concurrently, the structural engineer created a structural model of the auditorium bowl. The 2D and 3D survey data was constantly reviewed to identify instances where as-built information might give misleading results and require reinterpretation. Engineers also modeled the existing primary mechanical duct runs in and around the Opera Theatre auditorium to help determine where new plant rooms and duct runs could be located. PROJECT OVERVIEW D istinguished by its soaring roof shells, the Sydney Opera House has earned both National and World Heritage status as one of the world’s greatest buildings. To meet the dual goals of preserving the Sydney Opera House for future generations and ensuring its continuing utility as a performing arts center, the Sydney Opera House Trust has adopted building information modeling (BIM) as the core for its strategic building and asset maintenance plans. Utzon Architects and Johnson Pilton Walker, in collaboration with a consulting team including Arup, conducted a review and study of the Opera Theatre interior as part of the strategic building plan. The design team included 10 engineers, two 3D technicians Review and Study, Sydney Opera House Interior, and New Works, Sydney Opera House Organization Arup—Utzon Architects/Johnson Pilton Walker BE Awards Category BIM for Multiple Disciplines Project Objective Create an as-built 3D building model for the structural, architectural, and MEP components of the Sydney Opera House 20 BE MAGAZINE | Volume 4, Issue 4

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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