基础隔震建筑非线性动力响应的时程计算方法  

NONLINER CALCULATION METHOD FOR TIME-HISTORY OF DYNAMIC RESPONSE OF MULTISTORY BASE ISOLATION BUILDING

作　　者：黄海生[1] 王柏生[1] 

机构地区：[1]浙江大学土木系,杭州310027

出　　处：《振动与冲击》2005年第3期50-52,i005,共4页Journal of Vibration and Shock

摘　　要：应用随机振动等价线性化法和Benc-Wen光滑模型拟合基础隔震系统中隔震层的滞回特性,采用wilson-θ法和线性加速度法直接积分,对基础隔震建筑物的非线性地震动力时程响应进行了研究,并通过算例计算表明,两种方法拟合效果理想,值得推广。By using the BencWen model to represent the nonlinear hysteretic restoringforce character of the isolation bearings,and by using the equivalent linearization method for random vibration evaluation, dynamic responses of baseisolation building are studied. Wilsonθ mechod and linearized acceleration method are used to calculate the timehistory of seismic response of a base isolation builing. The results indicate that the Bencwen model and the equivalent linearization method are satisfied for examining the restoringforce character of the isolation bearings.

关 键 词：非线性动力响应 基础隔震建筑 计算方法 WILSON-Θ法 基础隔震系统 隔震建筑物 滞回特性 模型拟合 线性化法 随机振动 直接积分 加速度法 时程响应 地震动力 拟合效果 隔震层 Wen 计算表 

分 类 号：TU311.3[建筑科学—结构工程] TV223.31[水利工程—水工结构工程]