John Muir Walnut Creek Case Study

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BIM Practice in Construction Coordination Modeling

Case Study • 450,000 sf new hospital • Coordination modeling from aug 2007 to sep 2009 • Architectural Modeling • Structural Modeling • MEP Coordination • Revision Management

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Architectural Model • Architectural model completed in ArchiCAD • Including: exterior shell interior walls ceilings

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Wall Modeling with Trace & Reference • DWG of permit set used for initial coordination model

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Ceiling Modeling with Trace & Reference • DWG of permit set used for initial coordination model • Revised plans added as worksheets for review and alteration of the model

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Ceiling Framing • Ceiling supports and seismic bracing with custom library parts in ArchiCAD

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Structural Model • Complete structural model created in ArchiCAD

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Structural Steel using Complex Profiles • Structural steel catalog created in profile editor • Accurate structural model using column and beam tools

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Structural Details • Bracing, gussets and miscellaneous steel added as library parts

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Equipment Supports • Detailed unistrut assemblies for radiology, exam lights and other ceiling mounted equipment • Complex profiles used for struts with library parts for connectors

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Construction Coordination • Initial coordination in ArchiCAD • Coordination models exported as single stories in DWG & NWC • Full MEP coordination in NavisWorks

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Architectural & Structural Coordination • Structural & architectural models as separate .pln files JMH STRUCT master.pln

JMH ARCH master.pln

• Files interlinked for coordination

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Mechanical Coordination • Ductwork coordination in ArchiCAD

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Mechanical Coordination • Structural conflicts with ductwork identified before export to Navis

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Partition Framing • Light guage steel partition framing in ArchiCAD with Cadimage framing add-on

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Revision Management • ASI, CO & RFI coordination by email & FTP • PDF documents assembled and reviewed with Acrobat Pro • Sorted, coded and noted in Finder

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Revision Checking with Trace & Reference • Overlay PDF and DWG in contrasting colors to identify changes

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


BIM Practice in Construction Coordination Modeling

Sketches & Revision Confirmations • 3D documents for dimension checking • Screen captures as edited in Graphic Converter and emailed as PDF

John Muir Hospital, Walnut Creek CA Ratcliff Architects • ARUP Engineering • Clark Construction • View by View


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