shear wall

[sur123654]

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.

 

[slickdeals]

Yes. All elements modeled are taken into account for weight. Forces are then distributed to the diaphragms (half and half)

 

[PicoStruc]

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.

Be cautious and always verify everything !

 

[slickdeals]

Yes, PicoStruc is right.

However, if you manually mesh the walls, then the mass is appropriately captured. The bug seems to be only in the automesh option for walls.