https://community.graphisoft.com/t5/Collaboration-with-other/Column-spanning-multiple-zones-IFC/m-p/222274#M28450 Hi,<BR /> <BR /> Unfortunately, currently you cannot use IfcRelReferencedInSpatialStructure. We developed our IFC Import/Export to comply with the following Transfer View Standards: <UL><LI>IFC2x3 CoordinationView 2.0</LI> <LI><S></S></LI><LI>IFC4 Design Transfer View</LI> <LI><S></S></LI><LI>IFC4 Reference View 2.0</LI></UL> 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).<BR /> <BR /> 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?<BR /> <BR /> Thanks, Fri, 09 Aug 2019 15:54:10 GMT Daniel Kovacs 2019-08-09T15:54:10Z https://community.graphisoft.com/t5/Collaboration-with-other/Column-spanning-multiple-zones-IFC/m-p/222273#M28449 <DIV class="actalk-migrated-content"><T>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.<BR /> 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?</T></DIV> Fri, 10 May 2019 12:02:47 GMT https://community.graphisoft.com/t5/Collaboration-with-other/Column-spanning-multiple-zones-IFC/m-p/222273#M28449 Achille Pavlidis 2019-05-10T12:02:47Z https://community.graphisoft.com/t5/Collaboration-with-other/Column-spanning-multiple-zones-IFC/m-p/222274#M28450 Hi,<BR /> <BR /> Unfortunately, currently you cannot use IfcRelReferencedInSpatialStructure. We developed our IFC Import/Export to comply with the following Transfer View Standards: <UL><LI>IFC2x3 CoordinationView 2.0</LI> <LI><S></S></LI><LI>IFC4 Design Transfer View</LI> <LI><S></S></LI><LI>IFC4 Reference View 2.0</LI></UL> 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).<BR /> <BR /> 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?<BR /> <BR /> Thanks, Fri, 09 Aug 2019 15:54:10 GMT https://community.graphisoft.com/t5/Collaboration-with-other/Column-spanning-multiple-zones-IFC/m-p/222274#M28450 Daniel Kovacs 2019-08-09T15:54:10Z