If you have a Trimble Connect Account you can do the following
1) Export from TBC as a LandXML file
2) Upload to Trimble Connect and open in the Connect 3D viewer
3) From the connect 3D viewer select the utilities and export as a TRB (TrimBim) file
4) Import the TRB file into TBC - the objects should now be 3D IFC Shells / BIM objects
5) You should be able to select those and export them as an IFC file that should read into Navis Works
I think this will work - not ideal I know. I think you can sign up for a free Connect account - you can also use that as a collaborative viewing environment as well as Trimble Connect Desktop which will load RVT and DWG and IFC files for collective viewing and analysis
Alan
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Alan Sharp
alan.sharp@rockpilesolutions.com------------------------------