| 3种不同钢管混凝土本构关系模型研究 |
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| 引用本文： | 吴文平,黄炳生,樊建慧.3种不同钢管混凝土本构关系模型研究[J].四川建筑科学研究,2009,35(6). |
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| 作者姓名： | 吴文平 黄炳生 樊建慧 |
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| 作者单位： | 1. 江苏沪宁钢机股份有限公司,江苏,宜兴,214231
2. 南京工业大学土木工程学院,江苏,南京,210009 |
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| 基金项目： | 江苏省普通高校自然科学研究计划资助项目 |
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| 摘 要： | 对韩林海,Susantha,Saenz 3种钢管混凝土核心混凝土的单轴应力-应变关系做了介绍,对采用不同混凝土强度等级、不同径厚比(宽厚比)的圆钢管(方钢管)混凝土的应力-应变关系作了分析,并对3种不同本构关系作了对比分析研究.结果表明:对于相同等级的混凝土,径厚比(宽厚比)越小,钢管对核心混凝土的约束效应越好,即核心混凝土强度提高越大;Saenz模型的延性好于其他两种模型,应力峰值较大;3种模型中,圆钢管对混凝土的约束效应明显好于方钢管.
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| 关 键 词： | 钢管混凝土 单轴应力-应变关系 约束效应 混凝土强度 径厚比(宽厚比) |
Research on three stress-strain relationships of concrete-filled steel tube |
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| WU Wenping,HUANG Bingsheng,FAN Jianhui.Research on three stress-strain relationships of concrete-filled steel tube[J].Building Science Research of Sichuan,2009,35(6). |
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| Authors: | WU Wenping HUANG Bingsheng FAN Jianhui |
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| Affiliation: | WU Wenping 1,HUANG Bingsheng 2,FAN Jianhui 2 (1.Jiangsu Huning Steel Mechanism Company Limited,Yixing 214231,China,2.College of Civil Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Three uniaxial stress-strain relationships of concrete filled steel tube by Han linhai,Susantha and Saenz are introduced.According to the different concrete strength,plate radius-to-thickness(width-to-thickness) ratio,the uniaxial stress-strain relationships of concrete-filled circular(square) steel tube are analyzed and compared.The results show that steel tube provide a good confining effect to concrete when the radius-to-thickness(width-to-thickness) ratio is small,that is to say the concrete strength im... |
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| Keywords: | concrete-filled steel tube uniaxial stress-strain relationship confining effect concrete strength radius-to-thickness(width-to-thickness) ratio |
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