The Investigation To Structural Behavior Of Steel Plate Shear Wall Slotted At Two Edges

A new kind of steel plate shear wall slotted at two edges is presented in this paper. Three kinds of the slotted steel plate shear walls, namely, unstiffened panel, stiffened panel at both edges and full stiffened panel, are considered in the analysis. Their elastic and elastic-plastic buckling behaviors have been studied by using finite element method, respectively. The obtained results provide a base for further study and application of the slotted steel plate shear walls. The main research contents are as follows:1. Critical buckling load and corresponding buckling mode of three kinds of slotted steel plate shear walls under rigid boundary conditions have been investigated theoretically. Based on the numerical results obtained by FEM, the simplified formulas are proposed for the design of the slotted steel plate shear walls.2. The results show that the unstiffened slotted steel plate shear wall is not sensitive to initial geometric imperfection and residual stress. So the residual stress is ignored and the initial imperfection is modulated only by taking the first order buckling mode with an magnitude of 1/200 of the slenderness ratio () of panel. 3. The elastic-plastic buckling behavior of the slotted steel plate shear walls under rigid boundary conditions is analyzed. The research work is focused on the influences of panel slenderness ratio (), aspect ratio () and stiffeners. The resulting load-displacement curves are discussed and compared with conventional steel plate shear wall without stiffeners. It is showed that the ultimate load-carrying capacity of three kinds of slotted steel plate shear walls is proportional to the aspect ratio () of panel and this greatly reduce the analysis and design of the rectangular steel plate shear walls.4. The thick panel is different from thin panel in that the nonlinear behavior of the former is from the nonlinearity of material, but the nonlinear behavior of the latter is from the nonlinear of material and geometry of panel. In the design of slotted steel plate shear walls, the interior stiffeners are necessary to thin panel and not necessary to thick panel.