Influence of chloride corrosion on the effective mechanical properties of steel reinforcement

被引：28

作者：

Andisheh, Kaveh ^{[1
]}

Scott, Allan ^{[1
]}

Palermo, Alessandro ^{[1
]}

Clucas, Don ^{[2
]}

机构：

[1] Univ Canterbury, Dept Civil & Nat Resources Engn, Christchurch, New Zealand

[2] Univ Canterbury, Dept Mech Engn, Christchurch, New Zealand

来源：

STRUCTURE AND INFRASTRUCTURE ENGINEERING | 2019年 / 15卷 / 08期

关键词：

Reinforced concrete; chloride corrosion; corroded bars; reinforcement embedded in concrete; reduction factors; uneaqual mass loss; FATIGUE BEHAVIOR; TENSILE; BARS; PERFORMANCE; ENVIRONMENT; BEAMS;

D O I：

10.1080/15732479.2019.1594313

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This paper presents a methodology to develop advanced reduction factors for the effective mechanical properties of corroded steel reinforcement of reinforced concrete (RC) members. The reduction factors (mainly developed for bare steel reinforcement) reported in the literature scatter over a large range. In this regard, critical questions arise, such as the reliability and accuracy of the reduction factors of bare steel bars to evaluate residual capacity of corroded RC structure. This paper will provide answers to these questions based on reviewing past studies and the results observed from experimental inspection of corroded steel reinforcement carried out in this research. The results show using the reduction factors of bare steel bars to estimate residual capacity of corroded RC structures is not safe because they are significantly lower than the reduction that happens in real corroded RC columns.

引用

页码：1036 / 1048

页数：13

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