thank you for assistance,
i would like to know to create composite floor as slab deck with multiple shape
i want to use that composite floor for bridge slab deck
Hi, the best way to create a bridge deck is to use Civil 3D to create the corridor and then output this as a corridor solid. You can then create the rest of the structure in Revit
Autodesk Revit Structure 
thank you for assistance,
i would like to know to create composite floor as slab deck with multiple shape
i want to use that composite floor for bridge slab deck
king Regards,
Hamdi
Hi, the best way to create a bridge deck is to use Civil 3D to create the corridor and then output this as a corridor solid. You can then create the rest of the structure in Revit