Shear Behavior of Reinforced Concrete Framed Wall Panels With Vertical Loads

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Title: Shear Behavior of Reinforced Concrete Framed Wall Panels With Vertical Loads

Author(s): S. T. Mau and Thomas T. C. Hsu

Publication: Structural Journal

Volume: 84

Issue: 3

Appears on pages(s): 228-234

Keywords: deformation; failure mechanisms; frames; loads (forces); strains; reinforced concrete; shear properties; shear strength; shear walls; stresses; strength; stress-strain relationships; structural analysis; Structural Research

Date: 5/1/1987

Abstract:
In a framed shear wall, the wall panels are subjected to shear forces as well as to vertical loads. After diagonal cracking, a truss-like action is formed in a panel, in which the compression struts are subjected to compression and the longitudinal and transverse reinforcement are in tension. The governing equations of this unit can be derived from a softened truss-model theory, wherein the stress-strain relationship of the concrete struts is modeled by a softened material law. The complete load-deformation history can be solved numerically. The theoretical predictions agree very well with the experimental data of 14 test specimens reported in the literature. A simple theoretical formula is given for ultimate strength, which includes the significant effect of the vertical stress.