压电摩擦阻尼隔震结构地震响应及控制分析  

EARTHQUAKE RESPONSE AND CONTROL ANALYSIS OF ISOLATION STRUCTURE WITH PIEZOELECTRIC FRICTION DAMPER

作　　者：胡卫兵[1] 王骏涛 

机构地区：[1]西安建筑科技大学土木工程学院,西安710055 [2]中冶京城工程技术有限公司,北京100053

出　　处：《振动与冲击》2007年第2期79-83,共5页Journal of Vibration and Shock

摘　　要：将压电摩擦阻尼器与叠层橡胶垫组成智能隔震系统,并将其应用于一实例当中,以LQR控制算法作为此套系统的控制算法。应用MATLAB语言编制时程分析程序进行模拟地震情况下上部结构的反应,并与非隔震结构及被动隔震结构进行了对比,验证了这套隔震系统的隔震效果。通过分析,文中提出的这套隔震系统能够大大减小地震作用对结构的破坏,在减小层间位移的同时,大大的减小上部结构的最大加速度,同时由于其阻尼力可调的特性,使得这套系统无论是常遇地震还是罕遇地震都能发挥很好的控震效果。A new intelligent isolation system combining the piezoelectric friction damper with laminated rubber bearing is proposed and is used in a practical example.Then choosing the LQR as control algorithm,MATLAB program is compiled to conduct time history analysis of super-part of the structure under earthquake.The nonisolation structure and passive isolation structure with the above system are compared to demonstrate the isolation effectiveness.Through analysis it can be seen that the performance of the new isolation device is excellent,and the seismic response of the thesuper-structure is significantly reduced.The drift displacement and floor acceleration of the structure are much mitigated at the same time.In addition,the system is also effective whenever in frequently occurring earthquake or seldom happening earthquake because of that the damping force can be changed in the frictional damper.All the research lays down the foundation for further theoretical analysis and engineering application of piezoelectric materials in civil engineering vibration control.

关 键 词：压电摩擦阻尼器 振动控制 基础隔震 智能隔震 

分 类 号：TU31[建筑科学—结构工程]