采用摩擦阻尼器的MSCS在地震作用下的控制性能研究  

Earthquake Vibration Control of MSCS(Mega-Sub Controlled Structure) Which Employs Friction Dampers

作　　者：刘锐[1] 张洵安[1] 刘觉先[1] 王茜茜[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,陕西西安710072

出　　处：《西北工业大学学报》2010年第3期436-441,共6页Journal of Northwestern Polytechnical University

基　　金：西北工业大学基础研究基金(J540211)资助

摘　　要：位移响应和加速度响应是结构振动控制的2个重要指标,为了更进一步控制巨-子型结构的振动响应,文章选用摩擦阻尼器,均匀布置于主子结构中,确定了采用摩擦阻尼器的巨-子型结构控制方案。建立了有限元模型,通过有限元分析软件SAP2000,对巨-子型有控结构进行了多遇地震作用下的弹性动力时程分析,研究了摩擦阻尼器控制方案的控制效果和控制特点,以及各层阻尼器的滞回特性。对比普通框架表明,结构控制方案合理可行,能有效控制结构振动响应。We believe we are the first to employ friction dampers in MSCS. Section 1 of the full paper explains how we apply the commercial finite element software SAP2000 to establishing the finite element model of MSCS and then applies the elastic dynamic time-history method to analyzing such a model. Section 2 analyzes the control effectiveness of the MSCS and the hysteresis characteristics of friction dampers. The results, given in Figs. 6, 7 and 8, and their analysis show preliminarily that, compared with the results of the conventional mega-frame, our MSCS with friction damper does significantly reduce its vibration response. The hysteresis curves of the friction dampers employed by the MSCS, presented in Fig. 9, are quite broad, indicating that our new scheme of MSCS with friction dampers is feasible.

关 键 词：振动控制 巨-子型有控结构 摩擦阻尼器 有限元分析 弹性时程分析 

分 类 号：TU311.3[建筑科学—结构工程]