水平任意向地震输入下双塔楼连体结构的动力分析  

DYNAMIC RESPONSES ANALYSIS OF CONNECTED DOUBLE-TOWERS STRUCTURE UNDER RANDOM HORIZONTAL-ORIENTATION SEISMIC INPUT

作　　者：陈文兵[1] 唐家祥[1] 

机构地区：[1]华中科技大学土木工程与力学学院,武汉430074

出　　处：《振动与冲击》2003年第1期29-32,28,共5页Journal of Vibration and Shock

摘　　要：双塔结构在塔间设置连接可以组成减震控制体系。本文建立了体系的计算模型和运动方程 ,并在频域内对体系进行随机地震响应分析。同时比较了水平任意向地震输入时 ,无连接、有连接情况下的双塔结构的随机动力响应。表明有连接时结构的扭转变形不可忽略 ,最后就连接装置各参数对扭转反应效果的影响进行了分析。The structure system,which is composed of two towers connected by linking members is a vibration reduction control system.The calculating model and motion equations of the system are established in the paper.A random responses analysis is applied to the system in frequency domain,and the result of random dynamic responses of double_structure connected is compared with that of without connection under horizontal seismic input.The results show that the torsional vibration under connected condition is un_ignorable.Finally,the influence factors of torsion effect of connected system are investigated

关 键 词：建筑物 减震体系 动力响应 双塔连体结构 振动控制 地震响应 

分 类 号：TU352.11[建筑科学—结构工程]