Mode shapes are strange
Mode shapes are strange
(OP)
I Etabs model of multistory building, I get mode shapes showing large deformation of the slab, each mode shows different part of the slab moving up and down in no realistic way. Does anybody have a solution for this? The slab was modeled as ribbed slab using the deck section.





RE: Mode shapes are strange
RE: Mode shapes are strange
RE: Mode shapes are strange
RE: Mode shapes are strange
It was loose connections of some beams not slab, that drag the slab with them.