Currently the implementation of CAE Software with BIM tools are a real challenge.
Many times we need to be able to read this type of files and simulate to validate designs.
That is why it is currently being developed under opensource “Ifc-To-Code_Aster”, a great tool which would be wonderful to be implemented on this platform (This can Include connections. OMG )
Some links GitHub - IfcOpenShell/IfcOpenShell: Open source IFC library and geometry engine
IFC2CA IfcOpenShell/src/ifc2ca at v0.6.0 · IfcOpenShell/IfcOpenShell · GitHub
Saludos desde Chile