Is there any way to model (efficiently) a flexible diaphragm in RISA-3D without using RISA-Floor? I have finally forsaken portal method and moment distribution spreadsheets and purchased a copy of RISA-3D to join the 21st Century, only to realize that I might need additional software to do...
The NEMA website lists ST-20 "Dry Type Transformers for General Applications" as Rescinded. Does anyone have any idea what standard will fill the void?
http://www.nema.org/stds/st20.cfm