设置磁流变阻尼器的智能基础隔震建筑的半主动控制分析  

The research on intelligent base-isolation based on MR Damper

作　　者：吴晶波 韩江水[2] 余文渊 

机构地区：[1]杭州市下城区住房和城市建设局,浙江杭州310000 [2]西安科技大学建筑与土木工程学院,陕西西安710054 [3]宁波余姚市供电局,浙江余姚315400

出　　处：《四川建筑科学研究》2013年第4期231-234,共4页Sichuan Building Science

摘　　要：针对橡胶隔震垫作为一种被动控制装置存在最优控制范围窄的局限性,将磁流变阻尼器与橡胶隔震垫相结合,组成智能基础隔震系统应用于结构振动控制中,数值模拟分析了在地震力作用下原结构、普通隔震结构、隔震层附加MR阻尼器在Passive-off状态、Passive-on状态和磁流变阻尼器半主动智能状态下结构的反应。试验结果表明,结构在磁流变阻尼器半主动智能状态下控制效果最优,能有效克服被动隔震最优控制频带窄的缺点,其相对一般被动隔震装置,能同时减小隔震层位移、上部结构层间位移和各层最大加速度。For the rubber isolation pads as a passive control device, there are limitations of a narrow range of optimal control. In this paper the smart-base isolation system, which is combined with rubber bearing and MR Damper, is applied to structural vibration control, and has numerical simulation of the original structure, the general base-isolated structure, the structure in the isolation layer attached MR Damper in Passive-off state, Passive-on state and semi-active state response under seismic forces. The results show that structure in the MR Damper in the semi-active mental state, the optimal control effect, can effectively overcome the narrow-band passive isolation shortcomings of optimal control, compared with the passive isolation device that can reduce the displacement of isolation layer, the upper layers of the structure layer displacement and maximum acceleration.

关 键 词：数值模拟 智能隔震 磁流变阻尼器 半主动控制 

分 类 号：TU352.1[建筑科学—结构工程]