I have a 4 story concrete building, shear walls, flat slab floors and roof with beams at every column line. The Penthouse smaller than the overall footprint and is supported by beams at the main roof level. All beams are on the main column grid.
My problem is getting the roof beams to...
I've got a 4 story exterior concrete wall with multiple window openings. Does anyone know a quick and painless way to draw multiple openings in a wall?