Introducing an efficient compound section for steel shear wall using flat and corrugated plates

Abstract

This paper presents a combination of corrugated and flat plates to construct a seismically efficient compound section for steel shear walls. To assess the efficiency of the proposed section, a numerical and parametrical study was conducted using Finite Element (FE) software ABAQUS. The parametrical study included 45 different FE models consisting of three section types, five different length-to height ratios, and three values of plate thickness. The pushover analysis was performed for all the models. Both geometric and material nonlinearity have been considered in the analyses. The available experimental data was used to validate the FE modeling. The results indicated that the proposed wall improves the seismic parameters of the conventional steel plate shear wall. Besides the improvement of elastic stiffness, ultimate strength, and energy absorption capability, the proposed wall also reduces stress in the main frame. By reducing the imposed stress in the main frame, the ductility demand is reduced. As a result, a more economical system is achieved. Moreover, the necessary equations were suggested to achieve the push-over curve without requiring FE modeling, representing proper accordance with the FE results.