Thanks for your comments. I'll just try to head down the list and address the questions to provide more info.
This is a marine unloading facility on a ~400' long jetty with a dock at the end. There are seismic joints at the beginning of the jetty where the land ends and the jetty begins, and...
I'm working on a project where we will have large displacement due to seismic joints on a pier. 12" pipe, aromatics, distillates, and methanol product, ~100 PSIG. The displacement due to the seismic requirement is more than can be handled with normal u bends and 90 degree piping offsets...