| 钢筋混凝土十字形截面柱曲率延性的研究 |
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| 引用本文： | 许雪峰,蔡健. 钢筋混凝土十字形截面柱曲率延性的研究[J]. 科学技术与工程, 2009, 9(2) |
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| 作者姓名： | 许雪峰 蔡健 |
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| 作者单位： | 华南理工大学土木工程系,广州,510640;华南理工大学土木工程系,广州,510640 |
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| 摘 要： | 钢筋混凝土十字形截面柱在不同荷载角下的力学性能差别很大,在工程实践中应给予足够的重视.在充分考虑荷载角对十字形截面柱曲率延性影响的基础上,提出两种曲率延性的概念.通过对10 800根十字形截面柱的曲率延性进行计算机模拟计算,分析了中和轴角、轴压比、混凝土强度、纵筋强度、体积配箍率、肢高肢厚比以及不等肢长等各种参数对其曲率延性影响,得出各因素对曲率延性的影响规律,建立了中和轴角曲率延性和荷载轴角曲率延性的计算公式,成果可供结构设计和工程实践参考.
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| 关 键 词： | 十字形截面柱 中和轴角 荷载角 曲率延性 |
Study of the Curvature Ductility of X-shaped R.C.Column |
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| XU Xue-feng,CAI Jian. Study of the Curvature Ductility of X-shaped R.C.Column[J]. Science Technology and Engineering, 2009, 9(2) |
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| Authors: | XU Xue-feng CAI Jian |
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| Affiliation: | Civil Engineering Department;South China University of Tech.;Guangzhou 510640;P.R.China |
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| Abstract: | The mechanics performance of X-shaped reinforced concrete(R.C.)column varies when the load angle changes.It should be given enough attention.Based on the full consideration of the influence of load angle on the curvature ductility of X-shaped R.C.columns,the definition of two different kinds of curvature ductility is given in the paper.Calculating the curvature ductility of 10 800 X-shaped columns with computer program,the effects of neutral axis angle,axial compression ratio,concrete compression strength,s... |
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| Keywords: | X-shaped column neutral axis angle load angle curvature ductility |
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