摘要
提出了一种层间隔震结构的半主动控制模型,建立了其振动控制方程,采用磁流变阻尼器作为控制器来施加控制力,通过编制计算机程序进行仿真分析。研究表明,对层间隔震结构进行半主动控制是有效的,结构的隔震层相对位移和顶层位移反应大大降低,进行半主动控制可以达到与主动控制相接近的控制效果;隔震层阻尼、隔震度和隔震层位置对层间隔震结构的控制有明显影响。
A vibration-control model of story isolated structures is presented, and its vibration and control equations are set up. The control force is conducted by magnctorheological dampers. The control features are simulated by computer programming. The conclusions indicate that semi-active control of the story isolated structures is effective. The displacement responses of isolated story and top story are reduced greatly. The semi-active control is approached to the active control in control effectiveness. The damping in the isolated story, the isolated degree and the position of the isolated story can affect the control effectiveness obviously.
出处
《世界地震工程》
CSCD
北大核心
2006年第3期142-147,共6页
World Earthquake Engineering
基金
兰州交通大学"青蓝"人才工程基金(项目编号:QL-05-08A)
关键词
层间隔震
磁流变阻尼器
半主动控制
隔震度
story isolation
magnetorheological dampers
semi-active control
isolated degree
