建筑结构

2010, v.40;No.314(02) 37-39+44

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T形与L形短肢剪力墙破坏规律及刚度延性研究
Study on destruction law and stiffness ductility of T-shaped and L-shaped short shear wall

李青宁;李晓蕾;雷伟宁;
Li Qingning~1,Li Xiaolei~1,Lei Weining~2(1 Xi'an University of Architecture and Technology School of Civil Engineering,Xi'an 710055,China;2 Hualu Engineering and Technology Co.,Ltd.,Xi'an 710054,China)

摘要(Abstract):

对高厚比均为6.5,剪跨比均为2.15,轴压比不完全相同的2片T形截面与2片L形截面的钢筋混凝土短肢剪力墙构件进行低周反复水平荷载作用下的试验,分析了钢筋混凝土短肢剪力墙从开裂至破坏的规律,并从破坏现象上比较了两类不同截面形式试件的破坏差异;通过对滞回曲线、骨架曲线及试验记录数据的分析,得出了刚度退化系数随试件位移变化的规律,找出短肢剪力墙的刚度特点,且对试件的特征点及延性进行比较,得出其有关延性的一些特点。基于构件的破坏特性,对两类不同截面形式的短肢剪力墙构件提出一些改进建议。
Based on the experiments of two T-shaped cross-section and two L-shaped cross-section of reinforced concrete shear wall components with height-thickness of 6.5,cross-cutting of 2.15,different axial compression ratio under low levels of cyclic loading,mechanic behavior of the short-reinforced concrete shear wall from crack to damage of the two different forms of cross-section samples are presented.Through the hysteresis curve,skeleton curve and experimental records,degradation of stiffness coefficient with the displacement is gained,and the characteristics of stiffness and ductility are found out.Some suggestions for improvement are presented.

关键词(KeyWords): 低周反复荷载;刚度退化;位移延性;滞回曲线
low levels of cyclic loading;stiffness degradation; displacement ductility;hysteresis curve

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(10572107);; 陕西省重点学科建设专项资金资助项目(E01004)

作者(Author): 李青宁;李晓蕾;雷伟宁;
Li Qingning~1,Li Xiaolei~1,Lei Weining~2(1 Xi'an University of Architecture and Technology School of Civil Engineering,Xi'an 710055,China;2 Hualu Engineering and Technology Co.,Ltd.,Xi'an 710054,China)

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DOI: 10.19701/j.jzjg.2010.02.009

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