IFC format not supported any special characters in file body.
Special symbols (single or words) should be converted to \X2\UnicodeUnocode...Unicode\X0\ format.
For example:
'Séjour/Cuisine' -> 'S\X2\00E9\X0\jour/Cuisine'
Структура -> \X2\0421044204400443043A0442044304400430\X0\
Also ' symbol in grids names.
Revit do it such way. And Tekla too.
Advance Steel not.
AS Exports restricted characters into IFC format. Also AS exports tabulation character to IFC, it is not allowed too (should be replased to Space)
This cause Lexical Error via trying to open IFC with viewers (for example, Solibri) and opens Empty file.
Autodesk have a storng expertise with IFC format requirements with Revit IFC exporter tools
https://github.com/Autodesk/revit-ifc/releases
Needs to have quality IFC file after IFC export without addition improove processing needs.
Minimum needs - improove lexical errors
Desired needs - integration with Revit-IFC flexibility of IFC format export settings (There is no weight in IFC export!!!)
Yours sincerely,
Konstantin Biktimirov