建筑结构学报2012，Vol.33Issue(4)：104-112,9.
钢筋加劲T形截面钢管混凝土柱抗震性能试验研究
Experimental research on seismic behavior of T-shaped concrete-filled steel tube columns with reinforcement stiffeners
摘要
Abstract
Five T-shaped concrete-filled steel tube（CFST） column specimens including four stiffened columns and one non-stiffened column and one reinforced concrete（RC） column were fabricated and researched by quasi-static experiment under cyclic loading.Failure modes and hysteretic properties of specimens were investigated.The mechanism of reinforcement stiffeners and the constraining effect provided by T-shaped tube were also studied.Experimental results reveal that： compared with T-shaped RC columns,T-shaped CFST columns have positive effect on failure mode,initial stiffness,bearing capacity and energy dissipation capacity;the reinforcement stiffeners can effectively postpone steel tube＇s local buckling and restrain separation of steel tube and concrete at concave corners,to guarantee the interaction of steel tube and concrete;due to fully utilization of stiffeners＇ tension capacity,the tension reinforcement stiffeners＇ restricting function is more significant than that of serrated-shaped reinforcements;the CFST columns with larger steel ratio have high bearing capacity and better energy dissipation capacity;with the axial compressive ratio varying from 0.2 to 0.4,the bearing capacity of CFST specimens increases but the ductility decreases.关键词
T形截面钢管混凝土柱/钢筋加劲肋/拟静力试验/抗震性能Key words
T-shaped concrete-filled steel tubular column/reinforcement stiffener/quasi-static experiment/seismic behavior分类
建筑与水利引用本文复制引用
杨远龙,王玉银,张素梅..钢筋加劲T形截面钢管混凝土柱抗震性能试验研究[J].建筑结构学报,2012,33(4):104-112,9.基金项目
中央高校基本科研业务费专项资金 （）
国家自然科学基金项目 （）
