Seismic design for B31.3 piping.
Seismic design for B31.3 piping.
(OP)
For the Safe Shutdown Earthquake we are required to allow deformation but maintain pressure containment. B31.3 does not cover this and ASME III Div 1,appears to not consider piping with a D/t ratio greater than 50. I can't believe this has not been addressed before therefore could someone give advise as to allowables that could be used and or any other code that may be considered applicable.





RE: Seismic design for B31.3 piping.
For ASME B31.3 piping, refer to paragraphs 301.5.3, 302.3.6 and 321
RE: Seismic design for B31.3 piping.
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