Abstract
When steel plate shear walls (SPSWs) are fitted into a long-span truss system, horizontal and vertical deformation should both be considered to evaluate the seismic performance of the structure. Numerical analysis is conducted to study the seismic performance of stiffened steel plate shear wall with opening subject to horizontal and vertical loading respectively based on a project. Results of the analysis indicate that stress distribution and deformation patterns of SPSW with opening are quite similar under horizontal and vertical loading. Stiffeners around the opening should be stretched to full height or width of the SPSW and strengthened by using larger thickness or width. The grids at the four corners of the opening are recommended to be further strengthened by additional stiffeners. SPSW with opening exhibits good hysteretic performance and energy dissipation in both loading directions.
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