can anyone tell me is it possible to do modal analysis and seismic calculation with hollow slabs in construction model?
Thank you very much.
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Thank you for your answer. I've already defined hollow slab in my model but during analysis error 902 appears. After that I changed the slab into homogeneous (just for check) and no errors showed, calculation was fine. I thought maybe self weight of hollow slab is not converted to masses?!
Error description :
Negative eigenvalue has been obtained
PLease send me model to check
Take a look below. You have defined wrong geometrical properoes of holes in holow slab.
Opening bottom edge is 2mm below slab bottom layer
ho/2 = 160 and hc=158 -> ho must be less or eq to 316