Identification of Nonlinear Parameters of Rubber-Bearing In Base-Isolated Building
The research about base isolation in building construction in the region of medium risk seismicity has now received great attention.Seismic behavior of base-isolated structures is highly dependent on the nonlinear properties of the rubber-bearing isolated system.Thus, its very necessary and significant to identify the nonlinear properties of the rubber-bearing exactly with suitable method.In this paper, a data-based method solely using the time series of structural dynamic response and excitation measurements is proposed to identify the nonlinear parameters of rubber-bearing isolated system.The method is based on the sequential application of extended Kalman estimator for the nonlinear structural parameters.A numerical simulation results demonstrate that the proposed method is capable of identifying the nonlinear parameters of rubber-bearing isolated system with good accuracy.
Base-Isolated Nonlinearity Data-based Identification Extended Kalman Estimator Partial Observation
Ying Lei Mingyu He
School of Architecture and Civil Engineering,Xiamen University,Xiamen,Fujian,361005,China
国际会议
上海
英文
1119-1123
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）