Hi,

Could anyone explain the possible sources of axial restraint load at a line stop on a pipe rack during a sustain case?

I am getting a result that during operation case (temp @93 deg) axial load @ line stop is about 90 kN where at sustain case, the report is showing 150 kN.

I believe the axial load at line stop is driven by the thermal effect and not sure where this high load is coming from during a sustain case (no thermal considered).

No that with the line stop removed, the same location is shown to be displaced about 0.2 mm in axial direction during the sustain case.