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小锈蚀率钢筋混凝土梁承载性能试验研究*
杨晓明,吴天宇,陈永林,孙国君
摘 要

(辽宁工程技术大学建筑工程学院, 阜新 123000

 

[摘要]采用半湿通电法获得小锈蚀率钢筋混凝土梁,通过对锈蚀的钢筋混凝土梁进行加载试验,获得其承载性能。试验结果表明,半湿通电法能够避免全湿通电法氧化不充分及试件尺寸限制的问题,可用于实验室获取锈蚀钢筋混凝土构件,但锈蚀是不均匀的;对于小锈蚀率钢筋混凝土梁,随着锈蚀率增加,梁的开裂荷载和屈服荷载有所提高。

[关键词]锈蚀; 钢筋混凝土梁; 半湿通电法; 中和轴

中图分类号:TU375.1    文献标识码:A    文章编号:1002-848X(2015)04-0078-03

 

Experimental study on bearing capacity of corroded reinforced concrete beams with small corrosion ratio

Yang Xiaoming,  Wu Tianyu, Chen Yonglin, Sun Guojun

College of Civil Engineering and Architecture, Liaoning Technical University, Fuxin 123000 China

 

Abstract:The corroded reinforced concrete beams with small corrosion ratio made by the semiwet electrifying method were conducted loading tests to obtain their bearing capacities. The experimental results show that the semiwet electrifying method can avoid the problems of incomplete oxidation and limitation of specimen size in wet electrifying method, and can be used to obtain the artificial corroded reinforced concrete beams in laboratory but the corrosion is uneven. The cracking load and yield load of corroded reinforced concrete beam with small corrosion ratio would increase in a certain extent with the increase of corrosion ratio.

Keywords:corrosion; reinforced concrete beam; semiwet electrifying method; neutral axis

 

*国家自然科学基金项目(51008148,辽宁省教育厅2013年杰出青年学者成长计划(LJQ2013037)。

作者简介:杨晓明,副教授,Email:xiao_m_y@163.com

 

参考文献

1]杨晓明,朱红强.考虑滑移的锈蚀钢筋混凝土简支梁承载力数值分析[J.公路交通科技, 2011, 28(9):101111.

2]干伟忠,金伟良,高明赞.混凝土中钢筋加速锈蚀试验适用性研究[J.建筑结构学报,2011,32(2):4147.

3]金伟良,赵羽习.锈蚀钢筋混凝土梁抗弯强度的试验研究[J.工业建筑,2001,31(5)911.

4BALLIM Y, REID J C,  KEMP A R. Deflection of RC beams under simultaneous load and steel corrosionJ. Magazine of Concrete Research, 2001, 53 (3):171181.

5BALLIM Y, REID J C. Reinforcement corrosion and the deflection of RC beams——an experimental critique of current test methods J. Cement and Concrete Composites, 2003, 25(6):625632.

6]霍艳华. 锈蚀钢筋混凝土简支梁受剪承载力研究[D.南昌:南昌大学, 2007.

 

7]周静雅. 锈蚀钢筋混凝土梁剩余承载能力试验与理论研究[D.延吉:延边大学, 2013.

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