Thank you all for the valuable inputs. I have studied all the references suggested. I'm going to use the distributed strain method suggested by ALA. I will also take a closer look at the B31E allowable limits. I may need to run FEA analysis since the code that I'm using allows pipe to yield. The criteria is to ensure that the pipe does not break and spill.
My question regarding the dynamic analysis based on B31.4 is still remained unanswered. Even for an above ground system, Caesar software doesn't perform calculations for code stress per B31.4. Any thoughts?
Regards,