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- 저자 : Yaqi Suo (검색결과 1 건)
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Yaqi Suo,Shenggang Fan,Chenxu Li,Shaoru Zeng,Chengliang Liu 한국강구조학회 2020 International Journal of Steel Structures Vol.20 No.6
Parametric analysis on the hysteresis performance of the low yield point steel plate sheer wall (LYP SPSW) with three different stiff ening confi gurations, including unstiff ened, cross stiff ened and diagonal stiff ened, was conducted using the fi nite element models which have been verifi ed by the test results. The parameters which have eff ects on the hysteretic behavior of LYP SPSW include ratio of height-to-thickness, stiff ness ratio of stiff ener, and the stiff ness ratio of the edge member. The hysteretic curves, skeleton curves and viscous damping coeffi cient-displacement curves of SPSW with diff erent stiff ening confi gurations were obtained. According to the numerical results, it can be seen that the shear resistance and hysteretic performance of LYP SPSW decrease with the increase of the ratio of height-to-thickness. The energy dissipation capacity and shear capacity of LYP SPSW can be improved eff ectively by setting cross and diagonal stiff eners, but when the stiff - ness ratio of stiff ener is greater than 10, the increase is no longer obvious. Furthermore, for steel plate shear walls without edge members, the diagonal cross-stiff ening steel shear wall can achieve better energy consumption. For steel plate shear walls with edge members, when the ratio of height-to-thickness is less than 100, a better energy dissipation can be achieved by using cross stiff ened steel plates; when the ratio of height-to-thickness is greater than or equal to 200, a better energy dissipation can be refl ected by adopting cross stiff ened steel plates. Finally, a restoring force model of the LYP SPSW with two-side connections is proposed.
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