基础隔震-ATMD混合控制结构的抗震分析  

SEISMIC RESPONSE ANALYSIS OF BASE-ISOLATED STRUCTURE WITH ACTIVE MASS DAMPER

作　　者：麦庆元[1] 韦树英[1] 

机构地区：[1]广西大学,南宁530004

出　　处：《工业建筑》2005年第z1期461-463,共3页Industrial Construction

摘　　要：研究了顶层设置主动调谐质量阻尼器(ATMD)的基础隔震混合控制结构的抗震性能。首先,建立该混合控制结构的数学模型,其中应用双线性恢复力模型描述基础橡胶隔震垫的弹塑性特性,运用简单的加速度反馈算法计算ATMD的控制力。采用wilson-θ法求解运动微分方程。通过具体结构的地震动力时程反应分析,对该混合控制结构的抗震性能作出了评价。The performance of base-isolated structure with top ATMD for suppressing the seismic response is studied.The numerical model of the hybrid control system is established.And the bilinear hysteretic model is applied to simulate the hysteretic characteristics of the rubber bearing isolation cushion.The simple acceleration feedback algorithm is employed to calculate the control force of the ATMD.The wilson-θ method is adopted to solve the dynamic differential equations.The effectiveness of the hybrid control system is discussed based on the seismic dynamic time history response of some specific structures.

关 键 词：基础隔震 主动调谐质量阻尼器 混合控制 

分 类 号：TU352.12[建筑科学—结构工程]