带肘节式耗能支撑的超高层结构抗风抗震分析  

WIND RESISTANCE AND EARTHQUAKE RESISTANCE ANALYSIS OF A SUPER HIGH-RISE STRUCTURE WITH TOGGLE DAMPING BRACES

作　　者：陈海森 陈瑶 汪天雷 CHEN Haisen;CHEN Yao;WANG Tianlei(School of Civil Engi.,Guangzhou Univ.,Guangzhou 510006,China)

机构地区：[1]广州大学土木工程学院,广州510006

出　　处：《低温建筑技术》2018年第9期43-47,56,共6页Low Temperature Architecture Technology

基　　金：国家自然科学基金项目(51378135)

摘　　要：针对某超高层结构舒适度和多遇地震下层间位移角超限,基于实际工程引入消能减震(振)措施,建立有限元分析模型,对比分析了肘节式耗能支撑和人字形耗能支撑两种方案在十年一遇风荷载、五十年一遇风荷载、多遇地震下的消能减震(振)效果。结果表明,与人字形连接形式相比,肘节式支撑更能充分发挥黏滞阻尼器耗能性能,显著改善结构舒适度,有效降低结构地震响应,阻尼器耗能最大提高843%,可为同类工程提供一定参考。In respect to the fact that comfort requirement of the floors and inter-story drift angle under frequent earthquake of a super high-rise structure could not meet the limits of the code, the energy dissipation technique was introduced, and finite element analysis model was formulated, the damping effect of toggle damping braces and herringbone damping bracing under the wind load of 10 years, the wind load of 50 years and the frequent earthquake was are analyzed and compared. The results show that compared with the herringbone connection, the toggle support can fully utilize the energy dissipation performance of the viscous damper, significantly improve the structural comfort, and effectively reduce the seismic response of the structure. The maximum energy consumption of the damper is in- creased by 843%. Similar projects provide a reference.

关 键 词：超高层结构 肘节式连接 黏滞阻尼器 消能减震分析 

分 类 号：TU352.1[建筑科学—结构工程]