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Autodesk / revit-ifc

IFC for Revit and Navisworks (2019+)
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Issue on Ifc4 Reference view [Structural]-Not exporting element with multi layer material #317

Open Kakihara83 opened 3 years ago

Kakihara83 commented 3 years ago

If i create for example a metal deck floor with a single element and 2 material layer and try to export it with Ifc4 Reference view [Structural] the floor will not exported. If i try to export instead with Ifc4 Reference view [Architecture] it will export fine, same with ifc 2x3....

Seems a Bug? What are the difference from Architecture and Structure ifc4 RV?

thank you

AngelVelezSosa commented 3 years ago

Will need to check. It may be that the structure RV export is only intended for load bearing floors. @WawanSolihin can you comment?

WawanSolihin commented 3 years ago

In the structural exchange requirements the slab will be exported as an aggregate of IfcBuildingElementParts, each for each material layer. Do you see the aggregation of the IfcBuildingElementParts? Attached is the example what expected in the Structural Exchange Requirement. image

Kakihara83 commented 3 years ago

Seems it works with a simple multi layer as you said, It's not working creating structural deck using ifc4 structural exchange (i'm using rvt 2021 and exporter 21.2.1.0)

image

WawanSolihin commented 3 years ago

It will be helpful if you can send us a test model that has this issue so that we can investigate.

Kakihara83 commented 3 years ago

Project1-IFC4-Strucural.zip Here is a simple project created from basic structural template and autodesk family.... with both ifc "exported"