屈曲约束支撑满足高层结构高性能要求的研究分析  

Analysis of Anti-buckling Brace Used for High-rise Structure to Meet the High Performance Requirements

作　　者：刘淼鑫[1] 魏路[1] 伍阳[1] 钟维浩 

机构地区：[1]广东省建筑设计研究院,广东广州510010

出　　处：《华南地震》2014年第B04期148-152,共5页South China Journal of Seismology

基　　金：国家重点基础研究发展计划(973计划)资助(2012CB723304);"十二五"国家科技支撑项目(2012BA507B02);广东省科技计划项目(2010B090400469);广州市羊城学者科技计划项目(10A032D)

摘　　要：以某实际高层框筒结构工程为例,根据规范设定较高的抗震性能目标,研究分析屈曲约束支撑体系对提高结构的整体抗震性能的效果。分别进行多遇地震作用下的弹性反应谱分析和罕遇地震作用下的推覆分析,结果表明:加设屈曲约束支撑后结构的抗震性能得到明显加强。在多遇地震作用下,屈曲约束支撑体系减小层间位移角;在罕遇地震作用下,屈曲约束支撑体系有效耗散地震能量,减小主体结构变形和损伤,形成合理的整体型结构屈服机制。In this paper, Based on the higher seismic performance objectives set by the code, a real high-rise framed-tube building is established to research and analysis the overall seismic performance and to investigate damping control effect of the anti-buckling brace. Respectively, the elastic earthquake response spectrum analysis and rare earthquake pushover analysis show that anti-buckling brace has significantly enhanced the seismic performance of the structure.The results show that anti-buckling brace system significantly reduces drift angle in the weak earthquake and in rare earthquake, the anti-buckling brace system effectively dissipate seismic energy, reducing the main structural damage and form a reasonable yield mechanism to the overall structure.

关 键 词：屈曲约束支撑 基于性能 反应谱分析 推覆分析 

分 类 号：TU973.13[建筑科学—结构工程]