Column formwork

revit

#1

Good day,
I’m trying to get the m2 of formwork in columns, which I want to be as accurate as possible, I have obtained the vertical faces of the columns and added, but I do not know how to subtract the area that is intercepted with the beams. I ask, how should I do to detect the surfaces of the beams that overlap the columns?


#2

i dont know. i just strat learning dynamo.