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PROCEEDINGS OF THE ELEVENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY
Edited by: B.H.V. Topping
Finite Element Analysis of Light Gauge Steel Plate Shear Walls
E.B. Machaly1, S.S. Safar2 and M.A. Amer1
1Structural Engineering Department, Faculty of Engineering, Cairo University, Egypt
E.B. Machaly, S.S. Safar, M.A. Amer, "Finite Element Analysis of Light Gauge Steel Plate Shear Walls", in B.H.V. Topping, (Editor), "Proceedings of the Eleventh International Conference on Computational Structures Technology", Civil-Comp Press, Stirlingshire, UK, Paper 8, 2012. doi:10.4203/ccp.99.8
Keywords: tension field action, hysteresis behaviour, cyclic analysis, push over analysis, post-buckling strength.
Previous research work on steel plate shear walls (SPSWs) showed that such systems provide adequate shear strength, and dissipate significant amounts of hysteretic energy when subjected to cyclic loading. Current design rules  for SPSWs are based on reducing the in-fill plate into tension strips in the direction of principal tensile stresses after buckling, which is designated as a strip model.
In this paper, a finite element model for SPSWs was established using shell elements using the finite element program, ANSYS. The finite element model was validated by comparing quasi-static cyclic analysis results and monotonic push-over analysis results to hysteresis curves obtained using test results published in the literature [2,3] on fourteen SPSWs.
The analysis conducted revealed that the proposed shell element model predicted the hysteretic behaviour, stiffness, strength, energy dissipated and mode of failure of the tested SPSWs subjected to cyclic loading. Moreover, the push-over curve computed using the finite element model was sufficient to predict the SPSW stiffness and strength. Although the strip model is a widely accepted numerical tool for analysis and design of conventional SPSWs , it was revealed that the push-over curve computed using such a model underestimated the wall stiffness and shear strength. Moreover, the double strip model  did not predict the hysteretic behaviour of SPSWs subject to cyclic load accurately and underestimated the energy dissipated by the wall. It was concluded that the strip model(s) require further research work to enhance the predicted hysteresis behaviour, energy dissipated during cyclic loading, and to account for non-conventional SPSW configurations.
The numerical solution using shell elements can be used as a powerful numerical tool to investigate the effect of SPSW properties and configuration on wall stiffness, strength, hysteresis behaviour and design requirements of boundary elements.
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