Good morning Sirs,
I need some information as regards buried pipe, please.

In the isometric below, nodes from 300 to 330 are buried:



Analysis complies ASME B31.3 code but bend node 320 displacement along x axis (positive) is greater than yield displacement.

Is it a problem?

If yes, why?

After I perform analysis of the buried pipe job, have I to verify anything that regards axial and transversal stiffness and ultimate load?

With following soil properties axial stiffness is zero, is it possible?



Thanks for Your help.
Best regards.

Alessio