Thanks & good reply.

Ya, DNV can give very good explanation.

Since huge dispalcements to the bridge piping have been given including the fatigue case displacements of the structural analysis, the CYCLE need not tbe the same as that of the Ocean wave cycles for the piping inside the bridge.


Look ASME cycles would be around 10 rasie to 5 & real wave cyles would be 10 rasie 7 & there is a structure in whcih piping is safely put-in.
The only argument would be the piping cycles need not be the same as that of the cycles that occur due to the damage by the waves.

Hi all, more suggestions are welcome to make Piping Engineers design confortable by the structural and wave inputs.

regards,
Janardhana Acharya Gurugundi