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The authors write:
“The sizes and moment of inertia of stiffeners should be such that the global buckling of the plate is prevented and, in accordance with Fig. 8, the global buckling mode should be converted to a local buckling mode in sub-panels. In other words, in case of choosing inappropriate dimensions and thickness for the stiffener, global buckling of the plate, as well as the stiffeners definitely occurs and the steel plate capacity will not be fully utilized.”
Fig. 8: The effect of sizes and geometrical specifications of the stiffener in the buckling mode of shear panel, (a) improper global buckling of the panel with inappropriate stiffener, (b) proper local buckling of sub-panels with appropriate stiffeners
FROM:
Mohammad Jalilzadeh Afshari (1), Abazar Asghari (2) and Majid Gholhaki (1)
(1) Faculty of Civil Engineering, Semnan University, Semnan, Iran
(2) Department of Civil Engineering, Urmia University of Technology, Urmia, Iran
“Shear strength and stiffness enhancement of cross-stiffened steel plate shear walls”, International Journal of Advanced Structural Engineering, Vol. 11, No. 2, pp 179-193, June 2019
ABSTRACT: Nowadays, the use of steel plate shear walls, as an effective seismic resisting system, has been of great interest in enhancing the lateral strength and stiffness of buildings both in renovation and seismic rehabilitation of existing concrete and steel structures. In the present research, the shear strength and stiffness of steel plate shear walls in various configurations of stiffeners, including horizontal, vertical, and horizontal–vertical, were investigated by finite element method and finally semi-empirical relations were presented in this regard. The results indicated that the shear strength and stiffness of stiffened SPSWs were well predicted by the proposed relations, but increasing the number of stiffeners above a certain range will not have a significant effect on enhancing the stiffness and strength.
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