| 方钢管混凝土偏心受压构件曲率延性系数的研究 |
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| 引用本文： | 卢明奇.方钢管混凝土偏心受压构件曲率延性系数的研究[J].武汉大学学报(工学版),2006,39(5):64-67. |
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| 作者姓名： | 卢明奇 |
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| 作者单位： | 北京交通大学土木建筑工程学院,北京,100044 |
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| 摘 要： | 为反映方钢管混凝土截面延性的好坏,提出了方钢管混凝土偏心受压构件截面延性系数的计算方法,与试验结果进行了对比,结果表明该计算方法较为准确.并在此基础上,分析了轴压比和含钢率对方钢管混凝土截面延性的影响作用.结果表明:随着轴压比的增大,方钢管混凝土截面曲率延性系数降低;随着含钢率的增大,曲率延性系数提高.
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| 关 键 词： | 方钢管混凝土 曲率延性系数 受压区高度 极限曲率 |
| 文章编号： | 1671-8844(2006)05-064-04 |
| 修稿时间： | 2006年5月16日 |
Study on curvature ductility coefficient of concrete-filled square steel tubular column compressed eccentrically |
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| LU Mingqi.Study on curvature ductility coefficient of concrete-filled square steel tubular column compressed eccentrically[J].Engineering Journal of Wuhan University,2006,39(5):64-67. |
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| Authors: | LU Mingqi |
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| Abstract: | In order to judge whether the sectional ductility of concrete-filled square steel tube is good or not,a calculation method of the curvature ductility coefficient of concrete-filled square steel tubular member compressed eccentrically is proposed.Compared with experimental results,the method proposed is found to have a high accuracy.Based on it,the effects of the load level and sectional steel ratio on the curvature ductility coefficient are analyzed.It can be concluded that the curvature ductility decreases with the increasing of the axial load level and improves with the increasing of the steel ratio. |
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| Keywords: | concrete-filled square steel tube curvature ductility coefficient depth of compression ultimate curvature |
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