基于磁流变阻尼器与弹性基础隔震耦合建筑的地震响应分析  

Seismic Response of a Coupled Building with Magneto Rheological Damper and Elastic Base Isolation

作　　者：杨祖龙[1] 苏有文[2] YANG Zulong;SU Youwen(Department of Civil Engineering,Neijiang Vocational&Technical College,Neijiang 641000,Sichuan,China;School of Civil Engineering and Architecture,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China)

机构地区：[1]内江职业技术学院土木工程系,四川内江641000 [2]西南科技大学土木工程与环境学院,四川绵阳621010

出　　处：《地震工程学报》2018年第5期932-940,共9页China Earthquake Engineering Journal

基　　金：国家科技支撑计划项目子课题(2015BAL03B03-05);国家级大学生创新创业训练计划资助项目(201610619025)

摘　　要：为了减少地震时相邻建筑间相互撞击造成严重的结构损坏,运用Lyapunov法作为控制算法进行稳定性分析和控制器设计,对半主动控制以及两种混合控制方案性能进行了对比分析,经过研究发现,混合控制策略在缓解地震响应方面比半主动控制更有效。选取适当的混合控制能够减少支座位移,从而有效防止冲击。另外,通过参数学习发现增加隔震阻尼和强度会导致基础剪力增加和支座位移减小,选择适当的参数值,能够保证响应限定在一定范围内。To reduce the severe structural damage caused by the collision of adjacent buildings during an earthquake,in this study,we applied the Lyapunov method as a control algorithm to conduct a stability analysis to determine the best controller design.Here,we compare and analyze the performances of semi-active and two types of hybrid control schemes.The results reveal that a hybrid control strategy is more effective than semi-active control in mitigating the seismic response.The selection of an appropriate hybrid control scheme can reduce the bearing displacement,and thus effectively prevent impact.In addition,we found that an increase in the damping and strength of the isolation leads to an increase in the base shear force and reduces the bearing displacement.The selection of an appropriate parameter value can ensure that the resulting response is within a limited range.

关 键 词：半主动控制 混合控制 基础隔离 MR阻尼器 铅芯橡胶支座 叠层橡胶支座 

分 类 号：TU47[建筑科学—结构工程]