铅芯橡胶基础隔震房屋模型地震反应分析

Analysis of the Seismic Response of the Building Models with Lead Rubber Bearings for Vibration Isolation

考虑铅芯橡胶隔震支座水平力 -位移滞回曲线的实际特性 ,对隔震支座的滞回特性和粘滞特性进行分析 ,提出了组合分析模型 ,铅芯橡胶隔震支座滞回模型采用双线性库仓阻尼器模型及速度粘滞阻尼模型。对房屋模型进行了三维非线性动力时程分析 ,并与模型振动台试验结果进行了比较 ,计算分析与试验结果符合较好。

An analytical hysteretic and viscous model is proposed to predict the seismic response of the structures isolated from base vibration. The proposed model consists of not only the hysteretic behavior of the isolated bearing but also its viscous characteristics. Shaking table test is performed on the models of buildings with lead rubber bearing to verify the results of the analytical model. Non-linear dynamic analyses are conducted to simulate the earthquake test results. There is a good agreement between the experimental and the analytical results.