半周负刚度摩擦阻尼装置振动台试验研究  

Shaking table test of a half‑cycle negative stiffness friction damping device

作　　者：孙天威 彭凌云[1] 李小军 方国威[4] SUN Tian-wei;PENG Ling-yun;LI Xiao-jun;FANG Guo-wei(Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100124,China;Department of Civil Engineering,Tsinghua University,Beijing 100084,China;Institute of Geophysics,China Earthquake Administration,Beijing 100081,China;China Academy of Building Research,Beijing 100013,China)

机构地区：[1]北京工业大学工程抗震与结构诊治北京市重点实验室,北京100124 [2]清华大学土木工程系,北京100084 [3]中国地震局地球物理研究所,北京100081 [4]中国建筑科学研究院,北京100013

出　　处：《振动工程学报》2024年第3期423-435,共13页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52178098,51421005)。

摘　　要：对具有负刚度特征的半周负刚度摩擦阻尼装置进行了振动台试验,以某四层钢结构框架为减震研究对象,分别在钢结构框架的一层和二层布置半周负刚度摩擦阻尼装置,研究了在不同地震动工况下结构的地震响应。结果表明,半周负刚度摩擦阻尼装置可实现结构的位移与加速度响应双重控制,安装在结构变形较大位置会获得更好的振动控制效果。The shaking table test of a half-cycle negative stiffness friction damping device with negative stiffness characteristics is carried out.Taking a four-floor steel structure frame as the seismic reduction research object,the half-cycle negative stiffness fric-tion damping devices were arranged on the first and second floors of the steel structure frame respectively,and the seismic response of the structure under different ground motions was analyzed.The results show that the half-cycle negative stiffness friction damp-ing device can control the acceleration and displacement response of the structure,and better seismic reduction effect can be ob-tained if it is arranged on the position with large structural deformation.

关 键 词：减震 负刚度 半周 摩擦阻尼 振动台试验 

分 类 号：TU352[建筑科学—结构工程] TU317.1