Mathematical models to predict the mechanical behavior of reinforcements depending on their degree of corrosion and the diameter of the rebars

被引：49

作者：

Moreno, Esther ^{[1
]}

Cobo, Alfonso ^{[2
]}

Palomo, Gabriel ^{[3
]}

Nieves Gonzalez, M. ^{[1
]}

机构：

[1] Univ Politecn Madrid, Dept Architectural Construct, Madrid 28040, Spain

[2] Univ Politecn Madrid, Dept Bldg Technol, Madrid 28040, Spain

[3] Univ Politecn Madrid, Dept Appl Math, Madrid 28040, Spain

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 61卷

关键词：

Reinforced concrete; Reinforcements; Corrosion; Mechanical properties; Energy density; Ductility; REINFORCING STEEL BARS; CONCRETE BEAMS; BOND; CAPACITY; PERFORMANCE; CRACKING; DAMAGE;

D O I：

10.1016/j.conbuildmat.2014.03.003

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Tensile strength of high ductility reinforcements with different corrosion levels have been tested. Results have led to obtain models that relate yield stress, ultimate strength and energy density of deformation with corrosion degree and diameter. Good relations in the models analyzed have been obtained. Due to the lack of homogeneity in the composition and the lack of uniformity in the material loss in the bar due to corrosion, the strength decrease is smaller that the one predicted by the loss of steel section. Percentage decrease of energy density is higher than the decreases experienced by yield stress and ultimate strength. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：156 / 163

页数：8

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