The Year in Infrastructure 2007 - (Page 22) Bim fOr multiple disciplines This category applies to creative and effective integration of the information and processes between multiple disciplines. Of particular interest are projects in which BIM was used to integrate and coordinate the work of multiple disciplines. winner Review and Study of the Opera Theatre Interior and New Works, Sydney Opera House arup A partnership of Utzon Architects + Johnson Pilton Walker with consulting engineers Arup worked closely on the review and study of the Sydney Opera house’s interior. The primary goal was to create a base-coordinated structural, architectural, and MEP as-constructed model. This as-built BIM allowed further internal building studies and scheme documentation to be completed with a great deal of confidence in the redistribution of internal space and existing structural constraints. Because of the complexity of the acoustic paneling throughout the auditorium, a building surveyor performed a 3D laser-scanning survey. Other modeling challenges included the concourse-long span beams and the complex shell ribs and pedestals. Once the as-built architectural and structural models were completed, engineers studied a range of potential reconfigurations of auditorium surfaces, all within the overall constraint of the opera house’s iconic shell roof. A new western foyer colonnade, completed in 2006 at a cost of $70 million, was fully modeled in advance, along with pre-existing structural conditions. In conjunction with the as-built modeling, structural and architectural components were assigned invisible descriptions to indicate drawing information sources. This information can be extracted as an hTML report that contains hyperlinks to a CD of all structural and architectural drawings. The linking of the structural model to the master door schedule makes it possible to locate a door number in the external facilities management database and then view all the information about the wall containing that door. Bentley Structural and Bentley Architecture were used by the various project disciplines to facilitate interoperability between their models. Bentley’s BIM solutions demonstrated how easily an extremely complex geometry could be generated, manipulated, and documented. The ease of integration of other subconsultant documentation — such as DWG and IGES formats — without the timeconsuming conversion process saved numerous man-hours. 22 ThE YEAR IN INFRASTRUCTURE 2007
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