thread802-295016
When we are assigning shear wall to a model whether or not the self weight of shear wall is accounted for by the etabs in calculating seismic mass and/or the equivalent lateral load by etabs.
If you wall is meshed between story to model adequatly the flexibility of the wall then the mass of the meshed element between two story is not accounted in lateral mass..
I think this is a serious bug.
I have beed able to reproduce this bug on all my project.