| 通电锈蚀钢筋砼梁结构性能退化的试验研究 |
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| 引用本文： | 吴庆,章鑫森.通电锈蚀钢筋砼梁结构性能退化的试验研究[J].安徽理工大学学报(自然科学版),2004,24(4):16-19. |
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| 作者姓名： | 吴庆 章鑫森 |
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| 作者单位： | 1. 安徽理工大学土木工程系,安徽,淮南,232001
2. 中国矿业大学建筑工程学院,江苏,徐州,221008 |
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| 基金项目： | 安徽省高等学校青年教师科研资助计划项目(2004jq145),安徽理工大学科研启动基金项目 |
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| 摘 要： | 通过采用外加恒电流快速锈蚀模拟方法,对锈蚀钢筋混凝土梁进行试验,研究了结构性能退化机理。由试验结果看出,随着顺筋裂缝宽度和锈蚀率的增大,钢筋与混凝土之间的粘结作用逐渐退化,梁的屈服荷载、极限荷载和延性都有所降低,而锈蚀钢筋的力学性能退化以及锈蚀钢筋与混凝土粘结性能退化,是导致钢筋混凝土锈蚀梁的结构性能退化的主要因素。
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| 关 键 词： | 恒电流 锈蚀 钢筋混凝土 结构性能 退化 |
| 文章编号： | 1672-1098(2004)04-0016-04 |
| 修稿时间： | 2004年7月27日 |
Experiment Research on Structural Function Deterioration of Reinforced Concrete Beams by Using "Galvanostatic Method" |
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| WU Qing,ZHANG Xin-sen.Experiment Research on Structural Function Deterioration of Reinforced Concrete Beams by Using "Galvanostatic Method"[J].Journal of Anhui University of Science and Technology:Natural Science,2004,24(4):16-19. |
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| Authors: | WU Qing ZHANG Xin-sen |
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| Institution: | WU Qing~1,ZHANG Xin-sen~2 |
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| Abstract: | Mechanisms of mechanical degradation of reinforced concrete beams due to corrosion were investigated by the accelerated corrosion method-"galvanostatic method" in this paper. Experiment results showed that bond function between reinforcing bar and concrete were deteriorated gradually, and the limit loads and ductility were reduced to some extent. It was learned that deterioration of mechanical function of corrosion bar and bond function between corrosion bar and concrete was the main factor to deteriorate structure function. |
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| Keywords: | galvanostatic corrosion reinforced concrete structure function deterioration |
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