斜向水平反复荷载作用下L形截面柱抗震性能试验及损伤分析  

SEISMIC BEHAVIOR EXPERIMENT AND DAMAGE ANALYSIS ON RC L-SHAPED COLUMNS SUBJECTED TO CYCLICAL LOADING

作　　者：李淑春[1] 刁波[2] 叶英华[2] 高长忠[2] 崔海红 

机构地区：[1]北京科技职业学院,北京102206 [2]北京航空航天大学土木工程系,北京100083 [3]辽宁省铁岭市建委,铁岭112000

出　　处：《工业建筑》2008年第6期30-34,57,共6页Industrial Construction

基　　金：国家自然科学基金资助项目(50678016);北京市自然科学基金资助项目(8052014);国家教育振兴行动计划资助项目(BHB985-1-04)

摘　　要：试验设计了三组6个钢筋混凝土L形截面柱试件,施加斜向水平低周反复荷载。观测了破环过程,量测了关键阶段的裂缝宽度,采集了力-位移滞回曲线等相关数据。应用建议的损伤评价模型对其进行损伤量化分析。研究结果表明:加载角对L形截面柱的损伤影响较为显著,设计应沿工程轴方向和斜向45°进行抗震验算。Anti-seismic behavior and damage analysis of L-shaped section cross column are investigated based on 3 groups of 6 specimens subjected to cyclic loading. The include mechanical performances such as bearing capacity, failure pattern, hysteretic property, declining stiffness etc, are analyzed by the experiments. Research results indicate anti-seismic calculations of the columns should be according to direction of engineering axial and degree 45°.

关 键 词：L形截面柱 反复加载 抗震性能 损伤分析 

分 类 号：TU375.3[建筑科学—结构工程]