Dear All,

I am doing static analysis of a complete buried pipe, code B31.4.

If I run the analysis with 25 barg as P1, the output in Caesar give me allowables for operating load case, hence i have a certain value for the code stress ratio.

If I increase P1 from 25 barg to 27.3 barg, Caesar's output doesn't yield anymore allowables for operating case.

Why?

Thank you