巨型框架减振结构的脉动风模拟与风振时程分析  

Simulation of pulsating wind load and wind-induced vibration time history analysis of vibration-isolating structure of mega frame

作　　者：侯铂[1] 盛宏玉[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2012年第6期790-793,共4页Journal of Hefei University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51178156)

摘　　要：文章以巨型框架的一种结构方案为算例,建立了巨型框架减振结构及抗振结构的分析模型,并基于Davenport脉动风速谱模拟了脉动风的速度时程,由此研究了巨型框架减振结构脉动风振的位移、基底剪力及加速度时程反应,结果表明巨型框架减振结构能够显著降低结构的风振反应,是一种较有前途的结构形式。Through an engineering example of the structure scheme of mega frame, an analytical model of vibration-isolating and anti-vibration structure of mega frame is established, and the velocity time history of pulsating wind is simulated based on Davenport theory of pulsating wind spectrum. On this basis, the pulsating wind vibration time history response of displacement, base shear and acceleration of the vibration-isolating structure of mega frame are studied. The result indicates that the pulsating wind vibration response can be evidently reduced by the vibration-isolating structure of mega frame, which may be a new type of oromising structural form

关 键 词：巨型框架 减振结构 时程分析 脉动风速度时程 

分 类 号：TU352.12[建筑科学—结构工程]