[1]杨淑慧,曾力..腐蚀对钢筋力学性能影响的研究[J].郑州大学学报(工学版),2005,26(02):85-88.[doi:10.3969/j.issn.1671-6833.2005.02.021]
　Yang Shuhui,Zeng Li.Study on the influence of corrosion on the mechanical properties of steel bars[J].Journal of Zhengzhou University (Engineering Science),2005,26(02):85-88.[doi:10.3969/j.issn.1671-6833.2005.02.021]

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腐蚀对钢筋力学性能影响的研究()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

26卷

期数:

2005年02期

页码:

85-88

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Study on the influence of corrosion on the mechanical properties of steel bars

作者:

杨淑慧; 曾力.

郑州大学环境与水利学院,河南,郑州,450002, 郑州大学土木工程学院,河南,郑州,450002

Author(s):

Yang Shuhui; Zeng Li

关键词:

腐蚀;  钢筋;  力学性能

Keywords:

corrosion;  rebar;  Mechanical properties

DOI:

10.3969/j.issn.1671-6833.2005.02.021

文献标志码:

A

摘要:

为准确掌握钢筋腐蚀后性能的变化规律及其影响,通过对新乡某电厂-冷却塔筒壁外表面19根已腐蚀钢筋的试验研究分析,探讨了钢筋的腐蚀机理及腐蚀对钢筋力学性能的影响,认为该批受腐蚀钢筋性能的降低是试样平均截面积的减小,腐蚀坑存在造成的应力集中和材质改变3种因素共同作用的结果,同时分析了钢筋各项力学性能指标与钢筋腐蚀程度的变化规律,建立了腐蚀钢筋最薄弱截面损失率和重量损失率的关系式,并用以衡量钢筋的腐蚀程度,为结构的残余承载力、寿命及耐久性评估提供依据.

Abstract:

In order to accurately grasp the change law and influence of steel bar after corrosion, through the experimental research and analysis of 19 corroded steel bars on the outer surface of a power plant-cooling tower wall in Xinxiang, the corrosion mechanism of steel bars and the influence of corrosion on the mechanical properties of steel bars were discussed, and it was concluded that the decrease of the performance of the corroded steel bars was the result of the reduction of the average cross-sectional area of the sample, the stress concentration caused by the existence of the corrosion pit and the change of material, and the change law of the mechanical properties of the steel bar and the corrosion degree of the steel bar were analyzed. The relationship between the weakest section loss rate and the weight loss rate of corroded steel bar is established, and it is used to measure the corrosion degree of steel bar, which provides a basis for the residual bearing capacity, life and durability evaluation of the structure.

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