| 脱空钢管混凝土偏心受压有限元分析 |
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| 引用本文： | 唐述,刘夏平,刘仰韶.脱空钢管混凝土偏心受压有限元分析[J].广东公路交通,2011(2):11-14,18. |
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| 作者姓名： | 唐述 刘夏平 刘仰韶 |
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| 作者单位： | 1. 广州大学土木工程学院,广州,510006
2. 广东华路交通科技有限公司,广州,510420 |
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| 摘 要： | 介绍了脱空钢管混凝土偏心受压有限元建模方法,提出了偏心受压脱空钢管混凝土考虑脱空率影响的核心混凝土应力-应变关系,并利用ANSYS程序对不同脱空率和偏心率的脱空钢管混凝土短柱进行非线性有限元计算。计算结果表明,脱空率和偏心率的增大明显地削弱了钢管对核心混凝土的套箍作用。最后,将计算结果与现有试验研究成果进行对比分析,两...
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| 关 键 词： | 钢管混凝土 脱空率 偏心受压 应力-应变关系 有限元分析 |
Nonlinear Finite Element Analysis of Eccentrically-Loaded Separate Concrete-Filled Steel Tubes |
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| TANG Shu,LIU Xia-ping,LIU Yang-shao.Nonlinear Finite Element Analysis of Eccentrically-Loaded Separate Concrete-Filled Steel Tubes[J].Guangdong Highway Communications,2011(2):11-14,18. |
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| Authors: | TANG Shu LIU Xia-ping LIU Yang-shao |
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| Institution: | TANG Shu1,LIU Xia-ping1,LIU Yang-shao2(1.College of Civi Engineering,Guangzhou University,Guangzhou 510006,China,2.Guangdong Hualu Communications Technology Co.,Ltd,Guangzhou 510420,China) |
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| Abstract: | This article describes the finite element model of eccentrically-loaded separate concrete-filled steel tubes.A stress-strain relation of core concrete is presented,in which the confinement effect of steel tube to core concrete is modified by separation ratio.Then finite element analyzed models were modeled by ANSYS with different separation ratio and eccentric ratio.The results showed that the separation ratio and eccentric ratio effect significantly to the confinement effect of steel tube to core concrete.At last,comparison was carried out between with the calculation and the results of test,two results agreed well. |
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| Keywords: | concrete-filled steel tubes separation ratio eccentric compression stress-strain relationship finite element analysis |
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