Non-Linear Performance of Slabs in Coupled Shear Wall Structures

Abstract

The non-linear coupling action of reinforced concrete slabs in shear wall structures is investigated by the finite element method and the results are validated by small scale model tests using micro-concrete. Flexural stiffness and effective width of the coupling slabs are found to be influenced by the geometric and non-linear material parameters of the structures. Design curves for the determination of flexural stiffness and effective width are presented as functions of geometric parameters in the pre-cracking, cracking and post-yielding stages of non-linear material response. Comparative study of numerical and experimental results suggested that the design curves are reliable and can be used in the analysis and design of shear wall structure in practical situations.