An experimental study on seismic isolation using a leverage-type stiffness controllable system

研究成果: Conference contribution

摘要

The technique of semi-active isolation with variable-stiffness property has been proven theoretically to be an effective means for seismic protection of equipment or structural systems. To demonstrate the feasibility of this technique, a shaking table test is conducted in this study. The seismic response of a novel isolation system called the leverage-type stiffness controllable isolation system (LSCIS) controlled by a newly developed controller called the least input energy method (LIEC) and some traditional control laws are investigated. The LSCIS is able to vary its isolation stiffness in real time by adjusting the position of the pivot point on its lever arm. The LIEC controller, which is designed particularly for variable stiffness systems, reduces the transmitted seismic motion of the LSCIS by minimizing the input seismic energy of the system. As demonstrated by the test, the acceleration response and seismic input energy of the LSCIS can be significantly reduced by properly adjusting the isolation stiffness which is controlled by the LIEC controller. As compared to traditional control strategies, the LIEC is able to achieve the best acceleration reduction rate for the LSCIS, and meanwhile requires the least demands on control energy and control force.

原文English
主出版物標題5th International Conference on Advances in Experimental Structural Engineering, AESE 2013
發行者EUCENTRE
ISBN(電子)9780000000002
出版狀態Published - 2013 一月 1
事件5th International Conference on Advances in Experimental Structural Engineering, AESE 2013 - Taipei, Taiwan
持續時間: 2013 十一月 82013 十一月 9

出版系列

名字International Conference on Advances in Experimental Structural Engineering
2013-November
ISSN(電子)2522-2503

Other

Other5th International Conference on Advances in Experimental Structural Engineering, AESE 2013
國家/地區Taiwan
城市Taipei
期間13-11-0813-11-09

All Science Journal Classification (ASJC) codes

  • 土木與結構工程
  • 建築與營造

指紋

深入研究「An experimental study on seismic isolation using a leverage-type stiffness controllable system」主題。共同形成了獨特的指紋。

引用此