Research Articles | Challenge Journal of Structural Mechanics

Boundary plate influence on tie bars axial force demands in composite plate shear walls‒concrete filled

Erkan Polat


DOI: https://doi.org/10.20528/cjsmec.2022.04.005

Abstract


In composite plate shear walls–concrete filled (C-PSW/CF), there is an indeterminate flow of force between concrete, steel plate and tie bars. Finite element methods (FEM) are frequently used to verify this force flow. The theoretical models available in the literature to predict the tie bar maximum axial force demands were based on walls without boundary plates. The finding in this study is intended to help understand whether current theoretical approaches are conservative and can be applied to boundary plate walls as well. Within the scope of this study, tie bar axial force demands for walls with boundary plates consisting of planar and round shapes and without boundary plates were investigated and compared. For this, a previously benchmarked finite element (FE) wall model was considered and configured to have no boundary plate and have planar and round boundary plates. FE models were analyzed under monotonic lateral displacement up to 4% drift ratio. Passive lateral pressures and transverse force variations on the planar and round boundary plates were investigated.


Keywords


composite plate shear walls; concrete-filled; tie bar; boundary; axial force

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