铅-磁流变阻尼器在减震结构中的位置优化  

Position Optimization of Lead Magnetroheological Damper in Energy Dissipation Structural

作　　者：张香成 陈娜 罗芳[2] 赵军 徐赵东[3] ZHANG Xiangcheng;CHEN Na;LUO Fang;ZHAO Jun;XU Zhaodong(School of Mechanics and Engineering Science,Zhengzhou University,Zhengzhou 450001,China;Zhengzhou Institiate of Finance and Economics,Zhengzhou 450000,China;School of Civil Engineering,Southeast Univvrsity,Nanjing 210096,China)

机构地区：[1]郑州大学力学与工程科学学院,河南郑州450001 [2]郑州财经学院,河南郑州450000 [3]东南大学土木工程学院,江苏南京210096

出　　处：《郑州大学学报（工学版）》2018年第2期44-49,共6页Journal of Zhengzhou University（Engineering Science）

基　　金：国家重点研发计划政府间科技合作重点专项资助项目(2016YFE0125600);国家自然科学基金资助项目(51408555)

摘　　要：铅-磁流变阻尼器(LMRD)是一种能有效减小建筑结构地震响应的新型阻尼器,为提高LMRD受控结构的减震效果,以撤掉阻尼器产生的结构最优二次型性能指标损失量为优化目标,在结构中对LMRD进行位置优化.结果表明:以撤掉LMRD产生的结构最优二次型性能指标损失量为优化目标时,阻尼器在结构中的最优位置取决于结构自身特性及参数,与地震波关系不大;LMRD对地震作用下结构的水平位移响应控制效果较为明显,但对加速度响应控制效果不明显.In this paper,Lead Magnetroheological damper,LMRD,was taken as a kind of new damper designed to reduce effectively the seismic response of structures.The position optimization of LMRD in structure was to improve the damping effect of controlled structure in LMRD,and it was taken the optimal structural quadratic performance index loss produced from removing damper as optimization goal at the same time.The result showed that the optimal position of LMRD in structure was depended on the structural properties and parameters,which had little relevance to the type of seismic wave,when considering the loss of structural optimal quadratic performance index without LMRD as the optimization objective.Also,LMRD could control the horizontal displacement response of structure,under the seismic load,effectively,rather than the acceleration.

关 键 词：铅-磁流变阻尼器 位置优化 钢筋混凝土框架 二次型性能指标 动力响应 

分 类 号：TU352[建筑科学—结构工程]