Column spanning multiple zones IFC

[Achille Pavlidis]

Hi, I have a project with column spanning on multiple stories. When exporting to IFC those are assigned to the ground floor, and do not appear at all on the upper floors.
I found that there is IfcRelReferencedInSpatialStructure for elements that belong to a story but are referenced to multiple stories. But how can I implement it?

[Daniel Kovacs]

Hi,

Unfortunately, currently you cannot use IfcRelReferencedInSpatialStructure. We developed our IFC Import/Export to comply with the following Transfer View Standards:

• IFC2x3 CoordinationView 2.0
• IFC4 Design Transfer View
• IFC4 Reference View 2.0

These Design Transfer Views don't utilize IfcRelReferencedInSpatialStructure, so it has never been developed. I let the Product Management know about this though, so that they can think about whether we should implement it, so that you can use it in a custom Design Transfer View (report #266626).

For this, it would help, if you could describe what workflows you are following. Why would you need to use this definition in your IFC export?

Thanks,