Evaluation of Mechanical Performance of Corroded Reinforcement Considering the Surface Shape

被引：9

作者：

Kim, Hyungrae ^{[1
]}

Tae, Sungho ^{[2
]}

Lee, Hanseung ^{[2
]}

Lee, Sungbok ^{[3
]}

Noguchi, Takafumi ^{[4
]}

机构：

[1] Hyundai Engn & Construct, R&D Team Architectural Works Div, Seoul 110920, South Korea

[2] Hanyang Univ, Sch Architecture & Architectural Engn, Ansan 425791, South Korea

[3] Korea Natl Housing Corp, Housing & Urban Res Inst, Songnam 463704, South Korea

[4] Univ Tokyo, Fac Engn, Dept Architecture, Tokyo 1138656, Japan

来源：

ISIJ INTERNATIONAL | 2009年 / 49卷 / 09期

关键词：

corrosion types of reinforcement; mechanical properties; three dimensional shape analysis; fourier transformation; constitutive models; RC BEAMS; CORROSION; STEEL;

D O I：

10.2355/isijinternational.49.1392

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The purpose of this paper is to find out quantitatively the relationship between the surface shape and the mechanical properties of corroded reinforcement. Three-dimensional measurements were carried out on the surface shape of variously corroded reinforcements and parameters expressing the characteristics of the shape, which included the maximum decrement of sectional area of reinforcement, its distribution along the axis and the power spectral density by the Fourier Transformation. It was investigated that which parameters could correspond to the mechanical properties of corroded reinforcement and it was confirmed that the maximum decrement of sectional area of reinforcement could express the mechanical properties most appropriately. Finally, this paper proposes a constitutive model of corroded reinforcement for analyzing the structural behavior of reinforced concrete structures considering the localized corrosion of reinforcement by finite element method.

引用

页码：1392 / 1400

页数：9

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