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- W3006414109 endingPage "105965" @default.
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- W3006414109 abstract "The variable damping self-centering brace (VD–SCB), which uses disc springs and magnetorheological fluid to re-center and dissipate energy, is a lateral force-resisting component that reduces residual deformation. This paper presents the hysteretic modeling of the VD–SCB. Full-scale cyclic tests were conducted on the VD–SCB with different pre-pressed forces and stiffness due to sinusoidal excitations with varying frequencies and amplitudes. The results demonstrate that the brace presents a quasi-flag-shaped behavior, which provides reliable energy dissipation and recentering capabilities. A modified model based on the Bouc–Wen system is proposed to predict the hysteretic behaviors of the VD–SCB. The parameters of the modified restoring force model are analyzed to develop a reasonable 7-step selection process. The predictions of the model are sufficiently accurate to portray the test data. Compared with the existing self-centering brace, the VD–SCB has a fuller force-displacement response under a dynamic excitation, and the brace exhibits a greater energy dissipation, and both a lower activation force and sudden stiffness change." @default.
- W3006414109 created "2020-02-24" @default.
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- W3006414109 date "2020-04-01" @default.
- W3006414109 modified "2023-09-30" @default.
- W3006414109 title "Hysteretic model and experimental validation of a variable damping self-centering brace" @default.
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- W3006414109 doi "https://doi.org/10.1016/j.jcsr.2020.105965" @default.
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