| 氯盐腐蚀条件下钢筋混凝土结构抗力衰减模型研究 |
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| 引用本文： | 王立成,宋桂亭. 氯盐腐蚀条件下钢筋混凝土结构抗力衰减模型研究[J]. 中国海洋平台, 2006, 21(5): 34-38,43 |
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| 作者姓名： | 王立成 宋桂亭 |
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| 作者单位： | 1. 大连理工大学,大连,116023
2. 诸城市运输管理所,潍坊,262200 |
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| 摘 要： | 采用改进的Fick第二扩散定律来描述混凝土内氯离子的扩散过程,从而可以预测混凝土内钢筋开始锈蚀的时间;建立了均匀腐蚀、点腐蚀以及两者同时存在条件下的钢筋腐蚀速度模型,为结构抗力衷减规律的研究奠定了基础。算例表明建立的模型是合理的。
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| 关 键 词： | 氯盐 钢筋混凝土结构 抗力衰减 腐蚀 |
| 文章编号： | 1001-4500（2006）05-0001-05 |
| 收稿时间： | 2006-03-13 |
| 修稿时间： | 2006-03-13 |
DETERIORATING RESISTANCE MODEL OF REINFORCED CONCRETE STRUCTURE UNDER THE CONDITION OF CHLORIDE-INDUCED CORROSION |
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| WANG Licheng,SONG Guiting. DETERIORATING RESISTANCE MODEL OF REINFORCED CONCRETE STRUCTURE UNDER THE CONDITION OF CHLORIDE-INDUCED CORROSION[J]. China offshore Platform, 2006, 21(5): 34-38,43 |
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| Authors: | WANG Licheng SONG Guiting |
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| Affiliation: | 1.Dalian University of Technology, Dalian, 116023 China;2. Zhucheng Transport Control Station, Weifang, 262200 China |
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| Abstract: | Chloride-induced corrosion of steel bars in reinforced concrete structures exposed to marine environments and de-icing salts has become the major cause of resistance deterioration.The modified(Fick's) second law of diffusion is used to describe the diffusion process of chloride penetration in concrete,thus the time of corrosion initiation of steel bar can be predicted.The corrosion rate models are developed for uniform corrosion,pitting corrosion and the corrosion condition they both exist,which set the foundation for analysis for deteriorating resistance.It is illustrated that the models constructed in this paper is rational. |
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| Keywords: | chloride reinforced concrete structure resistance deterioration corrosion |
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