| T形截面短肢剪力墙刚度及延性研究 |
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| 引用本文： | 李青宁,李晓蕾,雷伟宁.T形截面短肢剪力墙刚度及延性研究[J].地震工程与工程振动,2010,30(1). |
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| 作者姓名： | 李青宁 李晓蕾 雷伟宁 |
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| 作者单位： | 1. 西安建筑科技大学,土木工程学院,陕西,西安,710055;结构工程与抗震教育部重点实验室,陕西,西安,710055
2. 华路工程科技有限责任公司,陕西,西安,710054 |
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| 基金项目： | 国家自然科学基金项目(10572107) |
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| 摘 要： | 基于T形截面的六片短肢剪力墙,两片普通剪力墙在低周反复水平荷载作用下的试验,描述了短肢剪力墙的破坏现象。通过对滞回曲线及骨架曲线的分析,找出短肢剪力墙试件从开始开裂直至破坏过程中刚度退化系数随试件位移变化的规律,并利用最小二乘法模拟了此曲线,给出了模拟公式。确定了试件的位移延性,比较了各试件间的差异。此外,通过与两片普通剪力墙试验结果的对比,发现当短肢剪力墙的高厚比从规范规定的8变化到普通剪力墙的9时性能差异并不明显。
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| 关 键 词： | 刚度退化 位移延性 滞回曲线 最小二乘法 |
Stiffness and ductility of short shear walls with T - shaped cross section |
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| LI Qingning,LI Xiaolei,LEI Weining.Stiffness and ductility of short shear walls with T - shaped cross section[J].Earthquake Engineering and Engineering Vibration,2010,30(1). |
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| Authors: | LI Qingning LI Xiaolei LEI Weining |
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| Institution: | 1.School of Civil Engineering;Xi'an University of Architecture and Technology;Xi'an 710055;China;2.Key Laboratory of Structural Engineering and Earthquake Resistance Ministry of Education;3.Hualu Engineering and Technology Co.ltd.;Xi'an 710054;China |
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| Abstract: | Based on the cyclic load tests on six short shear walls and two pieces of wall in the general level,the destruction of the short shear wall was described.In the analysis of hysteresis curves and skeleton curves,we found the process of the degradation of stiffness for the short shear wall specimens from the beginning of crack to failure following the changing of displacement and derived a formula to simulate the degradation of stiffness by using the least squares methed,we determined and compared the ductili... |
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| Keywords: | degradation of stiffness displacement ductility hysteresis curve least squares |
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