Abstract:In this paper, the mathematical expression of restoring force of the self-centering system was given. The procedure of solving the random responses of self-centering SDOF (single degree of freedom) system under normal white noise ground excitation was established, which was compared and verified using Monte-Carlo simulation method. Finally, the factors influencing the random responses were investigated by parametric analyses. The results indicate that the smaller structure period, the larger yield displacement ratio or energy dissipation parameter leads to smaller displacement variance ratio and velocity variance ratio. With the rise of post-yielding stiffness coefficient, the displacement variance ratio decreases whereas the velocity variance ratio increases. For larger structure period, the yield displacement ratio, the post-yielding stiffness coefficient or energy dissipation parameter exerts greater impact on the displacement variance ratio or the velocity variance ratio.
胡晓斌,江卫波. 自复位单自由度体系随机地震响应分析[J]. 振动与冲击, 2016, 35(16): 152-157.
HU Xiaobin JIANG Weibo. The random seismic response analysis of self-centering SDOF system. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(16): 152-157.
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