B31.1 equ (16) uses operating pressure for the occasional stress calculation. But AutoPipe code combinations is using the (LONG) case. (LONG) is defined as the Maximum longitudinal pressure stress considering all operating cases, not the the concurrent pressure and other loads during the occasional event.
Please advise how to use the operating pressure (Po) and the occasional longitudinal force (Fb) the code combination in B31.1 equ (16)?
To satisfy this requirement AutoPIPE 12.06 and higher has been updated by adding a new series of combinations that include just the operating condition pressure.
The user can choose to consider all default combinations or turn them off / delete as required.
Regards, Mike Dattilio Design Analysis Engineering Group Senior Analyst Bentley Systems Inc=============================================================================
Can you please confirm the [LONG] in the code combination as shown below is using P2[2} and the loads from E1 and not the 'Maximum longitudinal pressure stress considering all operating cases' (as the help file has defined LONG.)