| 钢筋混凝土压弯剪扭构件抗扭刚度探讨 |
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| 引用本文： | 任文锋,李芳.钢筋混凝土压弯剪扭构件抗扭刚度探讨[J].铁道科学与工程学报,2011,8(3):42-46. |
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| 作者姓名： | 任文锋 李芳 |
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| 作者单位： | 1. 中南大学土木工程学院,湖南长沙,410075
2. 长沙铁路勘察设计有限公司,湖南长沙,410001 |
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| 摘 要： | 压弯剪扭构件抗扭刚度是研究结构整体扭转性能的基础,在已有试验的基础上,给出了便于查用的构件抗扭刚度-扭转角退化曲线；通过对试验数据及抗扭刚度计算公式的参数分析,探讨了构件抗扭刚度的各种影响因素.结果表明:纵横钢筋强度比在1附近时构件的抗扭刚度最大,轴压比、偏心距、剪扭比与弯扭比的增大使得构件抗扭刚度降低.
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| 关 键 词： | 钢筋混凝土 抗扭刚度 退化 曲线 |
Research on torsion stiffness of reinforced concrete compression-flexure-shear-torsion components |
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| REN Wen-feng
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LI Fang.Research on torsion stiffness of reinforced concrete compression-flexure-shear-torsion components[J].Journal of Railway Science and Engineering,2011,8(3):42-46. |
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| Authors: | REN Wen-feng LI Fang |
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| Institution: | REN Wen-feng1,LI Fang2(1.School of Civil Engineering,Central South University,Changsha 410075,China,2.Changsha Railway Survey and Design Limited Company,Changsha 410001,China) |
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| Abstract: | Torsion stiffness of reinforced concrete compression-flexure-shear-torsion components is the base of the research on the structural torsion performance.The degradation graph between torsion stiffness and angers was presented according to the experiments data,and the various influence factors were discussed according to the experimental results and the parameter analysis of the formula for torsion stiffness.It is shown that torsion stiffness will be maximal when the intensity ratio of longitudinal steel to t... |
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| Keywords: | reinforced concrete torsion stiffness degradation graphs |
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