| 锈蚀钢筋的力学性能退化研究 |
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| 引用本文： | 袁迎曙,贾福萍,蔡跃.锈蚀钢筋的力学性能退化研究[J].工业建筑,2000,30(1):43-46. |
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| 作者姓名： | 袁迎曙 贾福萍 蔡跃 |
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| 作者单位： | 中国矿业大学,徐州,221008 |
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| 基金项目： | 中国科学院资助项目，59778054， |
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| 摘 要： | 从现场采样、试验室加速模拟腐蚀及模拟制作三个途径获取试件，通过对试件的拉伸试验，其结果表明：随钢筋锈蚀率的增加，钢筋的强度、延伸率随之下降。根据锈蚀钢筋的有限元分析，钢筋拉伸状态下的应力分布存在应力集中现象，随锈蚀率的增加，应力集中现象越趋明显。根据试验结果与分析结果的统计分析，提出锈蚀钢筋的应力与应变关系。
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| 关 键 词： | 钢筋 锈蚀 应力集中 性能退化 |
| 修稿时间： | 1999-06-10 |
DETERIORATION OF MECHANICAL BEHAVIOR OF CORRODED STEEL BAR |
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| Yuan Yingshu,Jia Fuping,Cai Yue.DETERIORATION OF MECHANICAL BEHAVIOR OF CORRODED STEEL BAR[J].Industrial Construction,2000,30(1):43-46. |
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| Authors: | Yuan Yingshu Jia Fuping Cai Yue |
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| Affiliation: | China University of Mining and Technology Xuzhou 221008 |
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| Abstract: | The testing
samples of corroded steel bar were collected from three ways,which are corroded reinforced
concrete element,accelerated corrosion in laboratory and simulation of mechanical
processing.The results of tension test indicate that the strength and ductility of steel
bar reduce as corrosion rate of steel bar.According to the result of analytical results by
finite element method,the stress concentration was found at the corrosion region;the
higher corrosion rate is,the more distinct the stress concentration is.The relationship of
stress and strain of corroded steel bar based on the results of testing and analysis is
presented. |
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| Keywords: | steel bar corrosion stress concentration deterioration |
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