Dear Friends
I query regarding the occasional stress check as per ASME B31.1Rev.2007

1)Whether all the occasional loads such as seismic (both inertia, & seismic anchor movement), safety relief valve, steam hammer, wind, should be clubbed together for occasional stress calculation or occasional loads
should be done separately & check with allowable 'ksh' .
Code tells only wind & seismic need not to be considered together. But regarding other occasional i didn't found any details from code about to be clubbed or not to club all the occasional cases.
Morever code tells that the occasional stress due to seismic anchor movement condition shall be added to thermal expansion stress range equation.

What is you opinion & world wide practice for occasional stress check as per ASME B31.1 Rev.2007.

Note: If i am clubbing all the occasional loads acting on the same time, then the pipe is failing