critical in the process of creating beams or columns or whatever element in Revit VSTA is the load path that stores all the family…it was tricky for me to find it so I’m uploading here the general path that is more or less the same for everyone!
In this example I’m loading metric but you can use Imperial as well…just MAKE SURE that the name of the element you are considering (beam in this case) is the exact same name of the one in the family (“300 x 600mm” in this example)…you can double check this easly by opening Revit and read the names in the family tab!
HAVE FUN CREATING MEMBERS!
’Loading the family symbol for beams from family located on the C drive
Dim loaded As Boolean
loaded = myModel.LoadFamilySymbol(“C:\ProgramData\Autodesk\RST 2011\Metric Library\Structural\Framing\Concrete\M_Concrete-Rectangular Beam.rfa”, “300 x 600mm”, beam_sym)