Re: Longitudianal Seismic Loads on Pipe Anchors

>Whether we can neglect longitudinal seismic loading force for pipe support
>sleeper or concrete piperack anchor bay design.
If you have a hard point that can pick up significant loading in the longitudinal direction then you can't neglect the loading. As an example picked out of the air, suppose you have a two runs of pipe in a horizontal plane, the first of which is mounted to a wall and the second runs normal to the wall. The wall restrains the second run in its longitudinal direction and the load developed cannot necessarily be ignored.

Just as a reminder, repeated postings of the same question tend to irritate people. Anyway, they irritate me. If you don't get an answer the first time, it might mean that no one knows the answer or that they simply cannot drop everything because they have problems of their own. Or it may mean that they don't much care--everyone has bad days. Be very circumspect about re-posting, if you don't get an answer the first time. When I moderate, I don't forward repeated messages on to the list.

Christopher Wright P.E.    |"They couldn't hit an elephant at
chrisw@skypoint.com        | this distance"   (last words of Gen.
___________________________| John Sedgwick, Spotsylvania 1864)