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Seismic Load Combinations

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fabtank

Mechanical
Aug 27, 2012
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ASCE specifies the following load combination in Section 2.4 for ASD:

8. 0.6D + 0.7E

In reviewing the Compress report on a vessel this is noted in the seismic code, but when any of the components are checked for seismic loads the equations apply the following load combination:

0.6D + 1.0E

My question is why does compress drop the 0.7 factor for seismic load?

 
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