Analytical Study on Steel Plate Shear Walls Using Dual Strip Model and 3d Fe Model

Steel plate shear walls (SPSW) have been used as the primary lateral force resisting system in buildings. Extensive analytical studies on steel plate shear walls in the United States, Canada, Taiwan and other countries have already validated the simple analytical model known as strip model to predict the monotonic behavior of this kind of structural system. However, more research is still needed to better understand the local behavior of SPSW as it related to global behavior, most notably the behavior of intermediate beam in multi-story SPSW. This paper presents some analyses on the Phase II tests of MCEER/NCREE cooperative experimental program on the full scale two-story SPSW specimen. A dual strip model using tension-only strips was developed using the commercially available finite element soft package ABAQUS/standard to replicate the Phase II pseudo-dynamic test. Beam element (B31) and truss element (T3D2) were used to represent the boundary frames and dual strips respectively. It was found that the simulation results showed good agreement with experimental results. This paper also presents the results of monotonic pushover analysis conducted using 3D finite element model in ABAQUS/Standard. Shell element (S4R) was employed for all structural sub-assemblage in this model. Linear eigenvalue buckling analysis was performed prior to the pushover analysis to introduce initial imperfection. The global structural responses from the analysis were compared with those from the MCEER/NCREE Phase II cyclic test. It was found the lateral capacity of the steel plate shear wall can be accurately estimated by 3D finite element model. _____________ B. QU, Research Assistant, Department of Civil, Structural and Environmental Engineering, University at Buffalo, Buffalo, NY, 14260, Tel: 1-716-645-2114x2437, Fax: 1-716-645-3733, E-mail: [email protected]. M. BRUNEAU, Director, Multidisciplinary Center for Earthquake Engineering Research and Professor, Department of Civil, Structural and Environmental Engineering, University at Buffalo, Buffalo, NY, 14260, Tel: 1-716-645-3991x104, Fax: 1-716-645-3399, E-mail: [email protected].