Bond-slip Constitutive Relationship between Corroded Steel Bars and TRC-confined Concrete

被引：0
|
作者：
Yin S. [1 ]
Dong P. [1 ]
Hu C. [1 ]
Shi Z. [2 ]
机构：
[1] Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou
[2] China Railway Construction Northwest Investment & Construction Company Limited, Xi'an
来源：
Hunan Daxue Xuebao/Journal of Hunan University Natural Sciences | 2021年 / 48卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Bond slip; Constitutive relationship; Corrosion; Reinforcement; TRC-confined concrete;
D O I：
10.16339/j.cnki.hdxbzkb.2021.01.016
中图分类号：
学科分类号：
摘要：
In this paper, the combination of experimental and theoretical analysis was used to study the effect of Textile Reinforced Concrete (TRC) confinement on the bond behavior between the deformed steel bars and concrete with different corrosion ratios through the pull-out experiment at electrochemical corrosion center. The experimental results showed that, without TRC confinement, the bond strength decreased with the increase of the corrosion ratio, especially after the rust crack was obvious. The TRC confinement had a good effect on the bond performance between the rust bar and the concrete, especially when the degree of corrosion was large. For the specimens with rust cracks, TRC confinement had a good effect on limiting cracking and increasing ultimate bond stress, and also had a significant effect on maintaining the bond stiffness. Finally, the rising section of the bond-slip constitutive relationship between the TRC-confined concrete and the corroded steel bar was established. © 2021, Editorial Department of Journal of Hunan University. All right reserved.
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页码：144 / 153
页数：9
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