| Elasto-Plasticity Critical Corrosive Ratio Model for RC Structure Corrosive Expanding Crack |
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| 作者姓名： | CHEN Yueshun LU Yiyan LIU Li |
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| 作者单位： | [1]School of Civil Engineering, Wuhan University, Wuhan 430072, Hubei, China [2]School of Civil Engineering and Architecture, Hubei University of Technology, Wuhan 430068, Hubei, China |
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| 基金项目： | Supported by the Foundation of Hubei Provincial Department of Education （Q200614002） and Chenguang Program of Wuhan City （20055003059-29） |
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| 摘 要： | The parameter of filling expanding ratio n, plasticity factor k1 and deformation parameter k2 is raised, and then the elasto-plasticity critical corrosive ratio model for RC structure corrosive expanding crack based on elasto-plasticity theory is constructed in this paper. The influences of parameters such as filling expansion ratio n, plasticity factor kl, deformation parameter k2, Poisson ratio of concrete v, diameter of reinforced bar d and protective layer thickness c on the critical corrosive ratio are researched by theory analysis and experiments. The experimental results validate the accuracy of the model. According to the experimental study, the least squares solution is calculated as n = 1.8 ,k1 =0.61 ,k2 =0.5.
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| 关 键 词： | 加强层腐蚀度 腐蚀率 鉴定方法 可塑性指数 |
| 文章编号： | 1007-1202（2007）06-1083-06 |
| 收稿时间： | 23 April 2007 |
| 修稿时间： | 2007-04-23 |
Elasto-plasticity critical corrosive ratio model for RC structure corrosive expanding crack |
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| CHEN Yueshun LU Yiyan LIU Li.Elasto-Plasticity Critical Corrosive Ratio Model for RC Structure Corrosive Expanding Crack[J].Wuhan University Journal of Natural Sciences,2007,12(6):1083-1088. |
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| Authors: | Chen Yueshun Lu Yiyan Liu Li |
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| Institution: | (1) School of Civil Engineering, Wuhan University, Wuhan, 430072, Hubei, China;(2) School of Civil Engineering and Architecture, Hubei University of Technology, Wuhan, 430068, Hubei, China |
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| Abstract: | The parameter of filling expanding ratio n, plasticity factor k1 and deformation parameter k2 is raised, and then the elasto-plasticity critical corrosive ratio model for RC structure corrosive expanding crack based on elasto-plasticity theory is constructed in this paper. The influences of parameters such as filling expansion ratio n, plasticity factor kl, deformation parameter k2, Poisson ratio of concrete v, diameter of reinforced bar d and protective layer thickness c on the critical corrosive ratio are researched by theory analysis and experiments. The experimental results validate the accuracy of the model. According to the experimental study, the least squares solution is calculated as n = 1.8 ,k1 =0.61 ,k2 =0.5. |
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| Keywords: | reinforcement corrosion critical corrosive ratio filling expanding ratio plasticity factor deformation parameter |
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