摘要
针对基础隔震体系遭受强地震时隔震层位移较大问题,提出了将调谐质量阻尼器(TMD)与基础隔震技术联合应用,形成一种新型的混合减震体系,以此控制隔震层的位移,同时减小上部结构响应。以一栋七层基础隔震体系为仿真算例,分别分析地震激励下基础隔震结构、调谐质量阻尼器(TMD)设置于基础隔震结构底层和顶层的混合减震体系地震响应。仿真结果表明:附加调谐质量阻尼器(TMD)不但能够有效减小隔震层的地震响应,同时对上部结构的响应也有不同程度的减小;对于附加调谐质量阻尼器位于底层而言,质量调谐阻尼器(TMD)位于顶层能够更有效的减小基础隔震体系的地震响应。
To solve the problem of large displacement of the isolation layer when the base isolation system is subjected to strong earthquakes, a new type of mixed damping system is formed by combining the tuned mass damper(TMD) with the base isolation technology to control the displacement of the isolation layer and reduce the response of the upper structure. Taking a seven-story base isolation system as an example, the seismic response of a mixed system of base isolation structure and tuned mass damper(TMD) set at the bottom and top of the base isolation structure under seismic excitation is analyzed respectively. The simulation results show that the additional tuned mass damper(TMD) can not only effectively reduce the seismic response of the isolation layer, but also decrease the response of the superstructure to different degrees. For the additional tuned mass damper located at the bottom, the mass tuned mass damper(TMD) located at the top can effectively reduce the seismic response of the base isolation system.
作者
张冠平
刘彦辉
金建敏
ZHANG Guanping;LIU Yanhui;JIN Jianmin(Earthquake Engineering Research &Test Center,Guangzhou University,Guangzhou 510405,China;Guangdong Provincial Key Laboratory of Earthquake Engineering and Applied Technology,Guangzhou 510405,China;Key Laboratory of Earthquake Resistance,Earthquake Mitigation and Structural Safety, Ministry of Education,Guangzhou 510405,China)
出处
《华南地震》
2018年第4期105-110,共6页
South China Journal of Seismology
基金
国家自然科学基金(51778163)
广东省高校创新团队项目(2016KCXTD016)
广州市科技计划项目(2017071033)
广州市属高校科研项项目(120161013)
