附加柱对巨-子型控制结构体系的影响  

Impacts of additional columns on the mega-sub controlled structural system

作　　者：毕金凤[1] 张洵安[1] 连业达[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：《河北建筑科技学院学报》2005年第4期45-47,65,共4页Journal of Hebei Institute of Architectural Science & Technology

基　　金：西北工业大学研究生创业种子基金(Z200534)

摘　　要：针对巨型梁的大跨度问题,在巨-子型控制结构体系中设置附加柱,形成一种新的巨-子型控制结构体系。建立该结构体系在脉动风作用下的振动方程,基于随机振动的复模态理论,推导位移和加速度响应谱及均方响应的表达式。并通过一数值算例,讨论了附加柱刚度变化对主结构和子结构产生的影响。A new mega-sub controlled structural system is presents to solve the long span problem of the mega beam, which is achieved through setting additional columns. This paper describes the vibration equation of this structure, and derives the horizontal vibration displacement and acceleration response spectrum and the mean square response on the base of the complex modal analytical theory. Impacts of additional columns stiffness on the mega structure and the sub structure have been discussed in accordance with an engineering example.

关 键 词：附加柱刚度 复模态理论 脉动风振 巨-子型控制结构体系 

分 类 号：TU323.3[建筑科学—结构工程]