Dear Seok,

I think A is more conservative and common practice. Note that the max. seismic loads are in X+0.75Y and Z+0.75Y directions. You may analyze both A and B cases and compare results.


Edited by Farhad (07/19/10 10:07 PM)
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Regards,
Farhad Salehi
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What U give U get back !!!