水平地震作用下巨-子型有控结构的动力响应研究  

Study on dynamic responses of mega-sub controlled structure under horizontal seismic

作　　者：刘新爱[1] 张洵安[1] 王显彬[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710129

出　　处：《燕山大学学报》2009年第3期254-257,共4页Journal of Yanshan University

基　　金：西北工业大学科技创新基金(M450211)

摘　　要：针对巨-子型有控结构存在的因子结构加速度过大及位移过大可能会造成主、子结构碰撞的问题,本文设置了一种实际的粘滞阻尼器,分析水平地震作用下其对巨-子型有控结构动力响应的控制效果,通过改变粘滞阻尼器的安装位置,进一步讨论了粘滞阻尼器安装位置对其控制效果的影响,研究表明:粘滞阻尼器的设置不会影响子结构的调频作用,且能改善巨-子型有控结构的控制效果,减小主结构位移、子结构加速度响应,其在结构中的安装位置对控制效果影响显著。To avoid the collision between the mega-frame and sub-flame which caused by too large acceleration and displacement of the sub-frame for the mega-sub controlled structure, some viscous dampers are set up to improve the mega-sub controlled structure. An analysis of time history dynamic responses of the mega-sub controlled structure under horizontal seismic is made. It was shown that setting viscous dampers won＇t affect the role of modulating frequency of the sub-frame, and it can improve the effectiveness of the mega-sub controlled structure, reduce the displacement of the mega-frame and acceleration response of the sub-frame. In addition, the installation site of the viscous dampers in the structure significantly affect the control effect.

关 键 词：巨-子型有控结构 水平地震作用 粘滞阻尼器 动力响应 

分 类 号：TU352.2[建筑科学—结构工程]