分别采用两种模型 ,代表隔震支座的非线性滞回恢复力特性 ,对基底隔震结构的动力反应进行了研究。利用Newmark法和四阶显式Runge -Kutta法 ,对一建筑物在隔震前、后的地震反应进行分析和比较。结果表明 :Wen微分滞回曲线可以较为准确地反应铅芯橡胶隔震支座的本构关系 ,其隔震效果比较明显 Two models were used to represent the nonlinear hysteretic recovery force characteristics of the isolation bearings and the dynamic response of the base isolation structure was studied. The Newmark method and the fourth-order explicit Runge-Kutta method were used to analyze and compare the seismic responses of a building before and after isolation. The results show that the Wen differential hysteresis curve can accurately reflect the constitutive relation of the lead rubber isolation bearing, and its isolation effect is obvious.