You must first run the restrained weight analysis case. This case includes weight, pressure, and concentrated loads. This is a linear analysis.
For the restrained weight case, the software:
-
Places rigid Y-restraints at each hanger location.
-
Determines any anchors you want to designate as freed.
-
Verifies the freed anchors are properly released.
The software calculates hanger hot design loads from the loads on the hanger Y-restraints.
When using the Maximum Load design option, the software first calculates the restrained weight case for each thermal operating case.