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Analytical and numerical investigation of stiffened steel plate shear walls
Steel plate shear wall (SPSW) is often required to prevent early buckling of the steel infill plate. This is done by adding horizontal and vertical stiffeners to the infill plate. This paper investigates the effects of stiffeners on SPSWs based on a well-established plate-frame interaction (PFI) analytical model. It is observed from the analytical investigation that stiffeners can increase the shear strength of the infill plate by 15% and the elastic stiffness by 53%. The ability of the PFI method in predicting the behaviour of stiffened SPSWs is also evaluated numerically. A series of SPSW models with a different number of horizontal and vertical stiffeners are analyzed, and their buckling behaviour is studied. A close agreement between the PFI method and the finite element analysis is observed. In addition, a recently proposed design criterion for selecting the size of stiffeners to prevent the global buckling of the infill plate is evaluated. Finally, an improved stiffness criterion for designing stiffeners in stiffened SPSWs is proposed. FE analysis shows that the proposed stiffness criterion is effective in preventing the global buckling of the stiffened infill plates in SPSWs.
Analytical and numerical investigation of stiffened steel plate shear walls
Steel plate shear wall (SPSW) is often required to prevent early buckling of the steel infill plate. This is done by adding horizontal and vertical stiffeners to the infill plate. This paper investigates the effects of stiffeners on SPSWs based on a well-established plate-frame interaction (PFI) analytical model. It is observed from the analytical investigation that stiffeners can increase the shear strength of the infill plate by 15% and the elastic stiffness by 53%. The ability of the PFI method in predicting the behaviour of stiffened SPSWs is also evaluated numerically. A series of SPSW models with a different number of horizontal and vertical stiffeners are analyzed, and their buckling behaviour is studied. A close agreement between the PFI method and the finite element analysis is observed. In addition, a recently proposed design criterion for selecting the size of stiffeners to prevent the global buckling of the infill plate is evaluated. Finally, an improved stiffness criterion for designing stiffeners in stiffened SPSWs is proposed. FE analysis shows that the proposed stiffness criterion is effective in preventing the global buckling of the stiffened infill plates in SPSWs.
Analytical and numerical investigation of stiffened steel plate shear walls
Asian J Civ Eng
Sabouri-Ghomi, Mohammad (author) / Bhowmick, Anjan K. (author)
Asian Journal of Civil Engineering ; 24 ; 1841-1857
2023-09-01
17 pages
Article (Journal)
Electronic Resource
English
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