| 配有圆钢管的钢骨混凝土轴压短柱的极限承载力计算（Ⅱ） |
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| 引用本文： | 梁本亮,刘建新,牛宇,张嘉天.配有圆钢管的钢骨混凝土轴压短柱的极限承载力计算（Ⅱ）[J].四川建筑科学研究,2014(2):30-33. |
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| 作者姓名： | 梁本亮 刘建新 牛宇 张嘉天 |
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| 作者单位： | 上海师范大学建筑工程学院; |
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| 基金项目： | 上海师范大学科研基金(SK201245) |
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| 摘 要： | 针对钢管混凝土核心短柱轴压状态,采用汉基塑性全量理论对钢管进行极限承载力分析,得到屈服时钢管竖向应力对承载力的贡献,同时对核心混凝土采用Drucker-Prager屈服准则进行钢管约束下的承载力的计算分析.考虑配箍率对极限承载力的影响,提出了不同配箍率下的钢管混凝土核心短柱的极限承载力计算公式,并与现有试验数据进行对比,结果吻合良好,为钢管混凝土轴压短柱极限承载力的计算提供一种新的方法.
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| 关 键 词： | 钢管混凝土 核心短柱 轴心受压 极限承载力 |
Ultimate bearing capacity of core short columns with concrete-filled steel tubular under axial compression |
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| LIANG Benliang,LIU Jianxin,NIU Yu,ZHANG Jiatian.Ultimate bearing capacity of core short columns with concrete-filled steel tubular under axial compression[J].Building Science Research of Sichuan,2014(2):30-33. |
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| Authors: | LIANG Benliang LIU Jianxin NIU Yu ZHANG Jiatian |
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| Affiliation: | (College of Civil Engineering,Shanghai Normal University,Shanghai 201418,China) |
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| Abstract: | Under the state of axial colnpression for core short colulnns with concrete-filled steel tubular, the Hencky theory was introduced to analysis the steel tubular,obtained the contribution of the vertical stress of the steel tubular when the core colulnn yielded to the ultimate bearing capacity. The Drucker-Prager strength criterion was used to analysis core concrete bearing capacity. Considering the effect of transverse reinforcement ratio the different formula was proposed according to the different transverse reinforcement ratio. Colnpared with existing experimental data and other ways, the calculating results are in good agreelnent with theln and provide a new approach to calculate the ultimate bearing capacity of cote short colulnns for with concrete filled steel tubular under axial colnpression. |
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| Keywords: | concrete-filled steel tubular short columns axial compression ultimate bearing capacity |
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