巨型框架多功能减振结构脉动风振的随机分析  

RANDOM ANALYSIS OF PULSATING WIND VIBRATION RESPONSE OF MULTIFUNCTIONAL VIBRATION-ABSORPTION MEGAFRAME STRUCTURE

作　　者：张敏[1] 

机构地区：[1]华东交通大学,南昌330013

出　　处：《工业建筑》2007年第6期40-45,共6页Industrial Construction

基　　金：国家自然科学基金资助项目(59778040)

摘　　要：巨型框架中主框架与次框架通过减振装置相互连接,形成巨型框架多功能减振结构。通过建立该结构在脉动风作用下的振动方程,根据随机振动理论导出主、次框架位移及加速度均方差,并对该结构位移及加速度减振系数进行分析,由此提出有效的减振控制方法。The multifunctional vibration-absorption megaframe structure may be constituted, in which the main frame may be connected with the secondary frame by vibration-absorption device in the megaframe. The vibration equation has been presented of this structure applied pulsating wind. The mean square deviation of the horizontal vibration displacement and acceleration of the main and the secondary frame have been resulted from random vibration theory. In addition, the vibration-absorption factors of the structure displacement and acceleration have been discussed. From this, an effective vibration-absorption control method has been advanced.

关 键 词：脉动风振 巨型框架 随机振动 位移减振系数 加速度减振系数 控制 

分 类 号：TU352.11[建筑科学—结构工程]