摘要
相关研究表明被动的基础隔震结构不能保证在任何地震作用下都是有效的。结合当前新型的磁流变阻尼器,提出了半主动控制系统与被动的基础隔震系统相结合的组合基础隔震系统,并在修正的clipped-optimal半主动控制算法基础上编制了相应的MATLAB程序。利用这一程序对一个8层结构进行了仿真分析,结果表明本文所提出的组合控制基础隔震系统比原来的被动基础隔震系统具有更好的控制性能。
It is found that the passive base-isolation system is not always effective when the structure are un- der some earthquakes. A new system that can be more effective for a wide range of ground excitations is neces- sary. A combined structural control strategy consisting of the passive isolation system and MR dampers, is pro- posed in this paper. An eighth-story structure was simulated and analyzed by a program written with MATLB language. The results show that the seismic performance of the combined controlled base-isolation system is better than the passive base-isolation system in terms of achieving the good base drift reduction.
出处
《结构工程师》
北大核心
2012年第6期79-84,共6页
Structural Engineers
基金
上海高校选拔培养优秀青年教师科研专项基金(Sd109014)
关键词
磁流变阻尼器
半主动控制
基础隔震
magneto rheological damper, semi-active control, base-isolation system, control algorithm
