EXPERIMENT ON SHEAR BEHAVIOR OF L-SHAPED SECTION BROAD-LIMB COLUMNS SUBJECTED TO LOW CYCLIC LOADING
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摘要: 根据对低周反复荷载作用下11根L形截面宽肢框架柱的剪切破坏试验,对L形宽肢柱受剪破坏机理以及水平加载角度、暗柱、截面肢高厚比对L形宽肢柱受剪性能的影响进行研究。试验表明,L形截面宽肢柱斜面受剪承载力高于主轴向;配筋合理的暗柱对L形宽肢柱受剪承载力及延性有提高作用;随截面肢高厚比的增加,试件受剪破坏过程的脆性增加。Abstract: On the basis of the experiment on shear failure of 11 L-shaped section broad-limb frame columns subjected to low cyclic loading, the influence of horizontal looading angle, embedded column and ratio of section width to height on its shear behavior has been analyzed as well a selements. shear failure mechanism. From the results it is indicated that L-shaped section broad-limb-columns have higher shear strength with oblique loads. The embedded column with proper bar would reinforce members. shear strength and ductility. The members. brittleness will rise with ratio of its section height to width increasing inthe process of shear failure.
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[2] 巩长江. L 形载面钢筋混凝土框架柱受剪性能的试验研究: [硕士学位论文]. 天津: 天津大学, 1994 郭 棣. 宽肢异形柱的实验研究: [博士学位论文]. 西安: 西安建筑科技大学, 2001 [3] 康谷贻, 巩长江. 单调低周反复荷载作用下异形截面框架柱的受剪性能. 建筑结构学报, 1997, 18(5) : 22-31 [4] 巩长江, 康谷贻, 姚石良.L 形截面钢筋混凝土框架柱受剪性能的试验研究. 建筑结构, 1999(1) : 31-34 [5] 王 丹. 钢筋混凝土框架异形柱设计理论研究: [博士学位论文].大连: 大连理工大学, 2002 [6] 包世华. 新编高层建筑结构. 北京: 中国水利水电出版社, 2005:199-206 [7] 李 杰, 吴建营, 等. L 形和Z 形宽肢异形柱低周反复荷载试验研究. 建筑结构学报, 2002, 23(1) : 9-15
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