连接相邻结构的黏滞流体阻尼器性能研究  

Performances of viscous fluid dampers connecting adjacent structures

作　　者：黄潇[1] 朱宏平[1] 

机构地区：[1]华中科技大学土木工程与力学学院控制结构湖北省重点实验室,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2012年第3期76-80,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家杰出青年科学基金资助项目(50925828);国家自然科学基金资助项目(51178203)

摘　　要：对近断层地震作用下连接相邻结构的非线性黏滞流体阻尼器的控制效果和性能进行了研究.根据阻尼器布置位置的不同共定义了3种分析工况.首先确定了各工况耦联结构耗能体系的动力响应;其次通过参数化研究得到了各工况中阻尼器的优化阻尼系数;最后基于阻尼器的最大输出力和最大冲程,对阻尼器的性能进行了详细的评价.研究表明:不同布置方式下阻尼器的优化阻尼系数大致相同;目前的技术条件可以满足不同布置方式下所需阻尼器的最大输出力和最大冲程.The behavior of viscous fluid dampers interconnecting adjacent structures under near-fault ground motions was investigated.According to the different arrangements of dampers,three different analysis conditions were defined.First the seismic response of coupling structures was determined;then extensive parametric studies were carried out to obtain the appropriate damping coefficient of the dampers under different layouts,finally the behavior of viscous fluid dampers was studied.Results show that the optimal damping coefficients of dampers under different analysis conditions are nearly the same.According to the current technology conditions,the maximum output force and stroke of the dampers can be satisfied.

关 键 词：黏滞流体阻尼器 近断层地震 相邻结构 结构响应 性能 

分 类 号：TU311.3[建筑科学—结构工程]