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Concrete wall seeing in plane shear and retaining soil

TM22

Structural
Oct 22, 2024
1
I have essentially a box of concrete retaining walls formed from the side of a basement wall that will have an opening for egress.

The retaining wall parallel to the basement wall is being designed as a horizontal beam, pinned on each end by the perpendicular retaining walls. Thus providing an in plane force on the perpendicular retaining walls.

Can the perpendicular retaining walls be designed separately for its own retainage and the in plane shear from the other wall's reaction? Or does this in plane shear and the retained soil need to be considered concurrently, creating a biaxial effect?
 

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