单跨飞机库结构的减震控制动力分析  

Dynamic analysis on seismic vibration control of a single-span hangar

作　　者：朱丹[1] 赵均[2] 陈胜兵[2,3] 陈丽颖[2] 赵伯友[1] 

机构地区：[1]中国航空规划建设发展有限公司,北京100120 [2]北京工业大学建筑工程学院,北京100124 [3]中铁八局集团建筑工程有限责任公司,成都610081

出　　处：《建筑结构》2009年第10期35-38,共4页Building Structure

摘　　要：对于构造形式较为典型的大型单跨飞机库结构,提出在支承柱列设置粘滞阻尼器的方案,进行减震控制研究。按7度设防要求,对飞机库设置与未设置粘滞阻尼器的情况,分别采用3条地震波输入,计算在小震和中震下各自的结构动力时程反应,分析对比在结构总地震作用、支承柱列柱顶位移和内力等方面的减震效果。结果表明:在支承柱列设置粘滞阻尼器,使在地震工况下的结构总地震作用、柱顶位移、柱剪力及弯矩等明显减小,并改善了由结构不对称导致的整体扭转效应,是一项可行且有效的减震措施。Seismic vibration control of a typical single-span hangar with viscous dampers in its column rows is studied. Based on the seismic fortification intensity of 7, seismic response time-history analyses of the hangar structure with and without the dampers are performed for 3 different earthquake time-history inputs, according to minor and moderate earthquake levels, respectively. The total seismic actions, lateral drifts of the supporting columns and their internal forces for the structure with and without dampers are compared for evaluation of the effects of use of viscous dampers on seismic vibration reduction. The results show that those structural seismic responses mentioned above are significantly decreased and the global torsion due to the irregularity of the structure is reduced with viscous dampers. So this seismic measure is effective and practical.

关 键 词：飞机库 大跨度结构 地震反应分析 减震控制 

分 类 号：TU352.1[建筑科学—结构工程] TP311.13[自动化与计算机技术—计算机软件与理论]