脉动风载下新型结构的动态特性分析  

INVESTIGATION TO ADDITIVE DAMPING IN DIFFERENT WIND-LOAD BEARING SCHEMES FOR THE NEW BUILDING STRUCTURE

作　　者：连业达[1] 张洵安[1] 王朝霞 徐朋成 

机构地区：[1]西北工业大学力学与土木建筑学院,西安710072 [2]煤炭工业部西安设计研究院,西安710054 [3]山东三箭集团公司,济南250100

出　　处：《低温建筑技术》2007年第5期66-68,共3页Low Temperature Architecture Technology

基　　金：西北工业大学研究生创业种子基金资助(Z200534);西北工业大学科技创新基金资助(M450211)

摘　　要：提出新型结构存在两种承载方案,研究了附加阻尼对新型结构动态特性的影响。对方案一中的巨结构顶层动力响应进行时程分析。研究结构表明:在整个附加阻尼变化区间上,方案二的的抗风振性能优于方案一;附加阻尼对两种方案结构动力响应影响规律是一致的;新型结构安装附加阻尼后动力响应进一步减小。Two wind load bearing schemes for the new building structures are considered when investigatigating the effect of additive damping on the dynamical performance of the new structure. One is that wind load is supported only by megastructure, and the other is that wind load is supported by both mega- structure and sub - structure. The effect roles of additive on the two schemes are investigated. Based on scheme one, time - history analyses of responses at the mega - structural top floor when it is subjected to wind loads were conducted. Researching results show that scheme two has better performance of vibration resistance than scheme one, that effect roles of additive damping to the structure is similar in the two schemes, and that the new building structure can further reduce its dynamical reponses after installing some additive damping.

关 键 词：新型建筑结构 结构控制 时程分析 

分 类 号：TU311.3[建筑科学—结构工程]