| 复式钢管砼空心柱的抗压刚度 |
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| 引用本文： | 李传习,夏桂云,张建仁.复式钢管砼空心柱的抗压刚度[J].重庆交通大学学报(自然科学版),2004,23(2):6-9,12. |
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| 作者姓名： | 李传习 夏桂云 张建仁 |
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| 作者单位： | 长沙理工大学,湖南长沙,410076 |
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| 摘 要： | 将复式钢管砼空心柱分成核心砼、内钢管和外钢管3部分,通过对核心砼进行轴对称柱体分析和钢管的薄壳分析,考虑核心砼和内、外钢管的径向位移和纵向应变的协调条件,建立了复式钢管砼空心柱抗压刚度EA的计算公式.同时分析了内钢管泊松比、外钢管泊松比、核心砼泊松比对构件抗压刚度、钢管与核心砼应力比的影响,得出了一些有益的结论.
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| 关 键 词： | 复式钢管砼 抗压刚度 弹性分析 |
| 文章编号： | 1001-716X(2004)02-0006-04 |
| 修稿时间： | 2003年7月4日 |
Compressive stiffness of composite concrete-filled steel tube |
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| Abstract: | Composite concrete-filled steel tube is divided into three parts of core concrete, inner steel tube and outer steel tube. Core concrete is analyzed by using elastic axisymmetric pillar and steel tube by using thin shell. Based on the compatibility of radial displacement and longitudinal strain, the compressive stiffness of CCFST is derived. The influence of inner steel tubular Poisson's ratio?outer steel tubular Poisson's ratio and concrete Poisson's ratio on compressive stiffness and stress ratio of steel tube to core concrete are also analyzed. Some conclusions are summarized. |
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| Keywords: | composite concrete-filled steel tube compressive stiffness elastic analysis |
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