In my simple model with an Rigid Anchor - Pipe - Rigid Anchor, with when a thermal load case is applied should expect high Code Stresses for Max Range at the anchors, however it appears that AutoPIPE's is not calculating the results correctly, why?
Most of the time this is because of an AutoPIPE setting, see the following:
For AutoPIPE V8i 09.06.01.xx and lower:
See Tools> Model Options> Results> Include axial force, enable this check-box option (see online help for details about this setting).
Results with this Setting Turned On:
"Code Compliance" sub-report using Results> Output Report
Bentley AutoPIPE