Effects of confinements on the bond strength between concrete and corroded steel bars

被引：127
|
作者：
Lin, Hongwei [1 ]
Zhao, Yuxi [1 ]
机构：
[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310058, Zhejiang, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 118卷
关键词：
Steel bar; Bond strength; Corrosion; Concrete cover; Stirrups; REINFORCED-CONCRETE; COVER CRACKING; CORROSION; BEHAVIOR; DETERIORATION; DEGRADATION;
D O I：
10.1016/j.conbuildmat.2016.05.040
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The bond tests were carried out on 18 beam specimens to investigate the bond behavior between concrete and corroded steel bars, with corrosion and stirrups being the principal parameters. Through systematical analysis of the test results and extensive test data from the literature, the confinements were found to have significant influence on the bond strength. Considering the effects of concrete cover, stirrups and corrosion current density, empirical model for the degradation of bond strength was established. It is concluded that the proposed model can predict the test results with reasonable accuracy. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：127 / 138
页数：12
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