ANALYTICAL STUDY ON COMPOSITE STEEL PLATE WALLS USING A MODIFIED STRIP MODEL

A composite steel plate shear wall (CSPSW) system consists of a steel plate shear wall with reinforced concrete panels attached to one side or both sides by bolts or connectors. This arrangement restrains the possible occurrence of out-of-plane buckling of thin-walled steel plate, thus significantly increasing the load-carrying capacity and ductility of the overall wall. In this paper, a new analytical model for the CSPSW-Strip Model was proposed based upon the mechanism and failure mode of CSPSW. The cross sectional properties and hysteretic model for the cross strips in the model were determined with theoretical analysis. Comparison with experimental results showed that the proposed model was able to capture accurately nonlinear behavior of CSPSW under monotonic and cyclic loading.