Prediction of corrosion-induced concrete cracking under external loading and stirrup constraint

被引：23
|
作者：
Zhao, Y. X. [1 ]
Wang, Y. Z. [1 ]
Dong, J. F. [1 ]
机构：
[1] Zhejiang Univ, Inst Struct Engn, Hangzhou 310058, Zhejiang, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 266卷
基金：
中国国家自然科学基金;
关键词：
steel corrosion; loading; stirrups; cracking model; INDUCED COVER CRACKING; REINFORCED-CONCRETE; STEEL CORROSION; FILLED PASTE; RC BEAMS; MODEL; TIME; PRODUCTS; EXPOSURE; LAYER;
D O I：
10.1016/j.conbuildmat.2020.121053
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this study, the corrosion-induced concrete cracking in three concrete beams with stirrups under external loading coupled with accelerated corrosion was investigated. The experimental results reveals that the external loading leads to earlier corrosion-induced concrete cracking. The stirrup constraint was found to have a significant influence on both the distribution and propagation of cracking and the longitudinal corrosion of steel. With quantitatively considering the effects of external loading and stirrups, an analytical model was developed to predict corrosion-induced concrete cracking and the results of which were shown to be in satisfactory agreement with experimental results. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：16
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