带五种被动减振器的高层建筑基于Davenport谱随机风振响应的解析解法  

EXACT ANALYTIC METHOD FOR RANDOM WIND-INDUCED RESPONSE OF TALL BUILDING STRUCTURES WITH FIVE SORTS OF PASSIVE DAMPERS ON THE BASIS OF DAVENPORT SPECTRUM

作　　者：李创第[1] 葛新广[2] 朱倍权[2] 

机构地区：[1]广西工学院土木系,广西柳州545006 [2]广西大学土木与建筑工程学院,广西南宁530004

出　　处：《工程力学》2009年第4期144-152,共9页Engineering Mechanics

基　　金：广西高校百名中青年学科带头人计划项目(RC20060814017);广西自然科学基金项目(0481001);广西科学基金项目(0575021);广西教育厅科研项目(0508052)

摘　　要：该文对带五种被动减振器的高层建筑的随机风振响应和等效静态设计风载取值进行了研究。针对目前已有的设置五种被动控制高层建筑用第一振型展开所获得的统一非经典的结构运动方程,该文用复模态法解耦,用随机振动方法获得结构风振响应解析式,并建立将结构分解为系列等效单自由度体系方法,继而利用等效单自由度体系随机风振响应的解析解,获得了带五种被动减振器的高层建筑基于现行规范Davenport谱对应的以第一振型表示的结构随机风振响应和等效静态设计风载取值的解析解。The random wind-induced response and the equivalent static wind action of tall buildings with five sorts of passive dampers are studied. According to the unique non-classical dynamic equations established already by expanding the main structure with respect to the first mode, the complex model method is used to disconnect the equations, the universal method that disassembles the structure into a series of equivalent single degree of freedom systems is established, the precise solution of random wind-induce response and the equivalent static wind action basis on Davenport spectrum of the tall building structure with five sorts of passive dampers are obtained.

关 键 词：被动减振器 解析解 DAVENPORT谱 随机风振 风荷载取值 

分 类 号：TU311.3[建筑科学—结构工程] TU973.213