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eXportIng 3D MoDel Data 261

Using IFC Interoperability
Industry Foundation Classes (IFC) are the data model standard developed by buildingSMART
International to support interoperability in the building industry. The IFC model specification is
registered by the International Standards Organization (ISO) as ISO/PAS 16739 and is currently
in the process of becoming the official International Standard ISO/IS 16739. Because of its focus
on ease of interoperability between BIM software platforms, some government agencies are
requiring IFC format deliverables for publicly funded building projects.
Some scenarios where IFC exchange may apply and facilitate data exchange include, but are
not limited to, the following:
®
®
◆ ◆ Linking Autodesk AutoCAD MEP software into a Revit project
◆ ◆ Using Solibri Model Checker or Viewer for model quality audits
◆ ◆ Coordination between Revit projects and Nemetschek Allplan, Vectorworks, or ArchiCAD

◆ ◆ AutoCodes Project by Fiatech
◆ ◆ COBie (Construction-Operations Building Information Exchange) deliverables
◆ ◆ GSA spatial validation
You can export the Revit model quite effectively to the IFC 2x2, 2x3, BCA ePlan Check, or IFC
GSA 2010 formats by clicking the Application menu and selecting the flyout menu. The resulting
IFC file (Figure 7.31) can be viewed in a number of programs that can be downloaded at no cost
from any of the following websites:
◆ ◆ DDS-CAD Open BIM Viewer from Data Design System (www.dds-cad.net)
◆ ◆ Solibri Model Viewer (www.solibri.com)

◆ ◆ IFC Viewer (www.ifcbrowser.com)
◆ ◆ Tekla BIMsight (www.tekla.com)

Figure 7.31
revit model
exported to IfC
format

Importing IFC data into the Revit environment is similar to the process for importing 3D
CAD geometry; however, the data generated is intended to be more intelligent and editable.

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