十字型内芯全钢防屈曲支撑的有限元分析  

FINITE ELEMENT ANALYSIS ON ALL-STEEL BUCKLING-RESTRAINED BRACES WITH CRUCIFORM CORE

作　　者：石峰[1] 吴斌[1] 

机构地区：[1]哈尔滨工业大学土木工程学院,哈尔滨150090

出　　处：《低温建筑技术》2010年第10期20-22,共3页Low Temperature Architecture Technology

基　　金：国家重点基础研究发展计划项目(973计划)(2007CB714204)

摘　　要：全钢防屈曲钢支撑是一种在大震下能够屈服而不易屈曲的耗能支撑形式,具有良好的抗震性能。本文通过对十字型内芯全钢防屈曲钢支撑的有限元分析,给出该支撑在不同破坏模式下约束比,内芯宽厚比以及初始缺陷的影响,为实际工程应用提供参考。The all-steel buckling-restrained braces can act as seismic response-controlled members because of their excellent energy dissipation capacity without buckling at design deformation.In this paper,through the analysis of finite element models with cruciform core,we investigate the effects of restraining ratio,width to thickness ratio of core and initial defects.These provide a more reasonable basis for determining design performance parameters.

关 键 词：全钢防屈曲支撑 宽厚比 初始缺陷 

分 类 号：TU311.41[建筑科学—结构工程]