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shear force in concrete walls due to dead load?

shear force in concrete walls due to dead load?

shear force in concrete walls due to dead load?

I'm finding a significant amount of gravity load being transferred into my shear walls in the form of in plane shear. Is this normal?

I have my slab modeled and am applying stiffness modifiers to it. The configuration isn't something i would expect for this to occur. Is this strange?

RE: shear force in concrete walls due to dead load?

doing a little more digging, research, and experimentation it appears that these walls are acting as deep beams after a good look at the boundary conditions (how the ends of the walls are supported and the internal shears associated with deep beam behavior is being reported.

Question then is: should these in plane shears be ignored when it comes to designing to wall for lateral shear and then justify the design of the shear wall design as a deep beam for gravity loads (Design based on strut and tie model)

Thank you

RE: shear force in concrete walls due to dead load?

Whats your mesh size?

When you've got the assign wall mesh dialogue open, are you ticking the option that goes something along the lines of "add restraints on edges"?

RE: shear force in concrete walls due to dead load?

Maybe the wall is spanning between the returns for some reason?

See if the reactions are at every analysis node of the auto-mesh?

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