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Residual capacity of corroded reinforced concrete bridge components: a state-of-the-art review

Residual capacity of corroded reinforced concrete bridge components: a state-of-the-art review
Residual capacity of corroded reinforced concrete bridge components: a state-of-the-art review
The current paper provides a comprehensive review of experimental studies on corrosion damaged reinforced concrete (RC) components, and the ability of current state-of-the-art numerical models to predict the residual capacity of these corroded RC components. The experimental studies on corroded RC components are classified into five different categories including: (i) beams in flexure, (ii) beams in shear, (iii) columns under pure axial compression, (iv) circular columns in flexure, and (v) rectangular columns in flexure. For each group, a summary of all the previous research are provided. Through the regression analyses, the experimental results of each abovementioned groups are used to examine the adverse effect of corrosion on ductility and, flexural, shear, and axial capacity loss of the corroded RC components. Finally, the observed results of the previous experimental studies are compared with the predicted values using the state-of-the-art numerical models currently available in the literature. The summarised experimental results show that corrosion has much more adverse impact on ductility of the RC columns than strength. However, the effect of corrosion on ductility and strength reduction of RC beams is the same. Moreover, results of cross-sectional moment-curvature analyses using the state-of-the-art corrosion damage models show a good correlation between the predicted residual flexural capacity and observed experimental results. Finally, the existing shortcomings in the literature and open issues to be addressed in the future research are discussed, and some recommendations are provided.
Corrosion, residual capacity, ductility loss, RC component, numerical modelling
1084-0702
1-16
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Maddocks, Jake
7c30fdf2-3a90-4984-be66-d040b285dea0
Afsar Dizaj, Ebrahim
d15c5b4e-56cc-4598-91c6-36083da764e7
Kashani, Mohammad
d1074b3a-5853-4eb5-a4ef-7d741b1c025d
Maddocks, Jake
7c30fdf2-3a90-4984-be66-d040b285dea0
Afsar Dizaj, Ebrahim
d15c5b4e-56cc-4598-91c6-36083da764e7

Kashani, Mohammad, Maddocks, Jake and Afsar Dizaj, Ebrahim (2019) Residual capacity of corroded reinforced concrete bridge components: a state-of-the-art review. Journal of Bridge Engineering, 24 (7), 1-16. (doi:10.1061/(ASCE)BE.1943-5592.0001429).

Record type: Article

Abstract

The current paper provides a comprehensive review of experimental studies on corrosion damaged reinforced concrete (RC) components, and the ability of current state-of-the-art numerical models to predict the residual capacity of these corroded RC components. The experimental studies on corroded RC components are classified into five different categories including: (i) beams in flexure, (ii) beams in shear, (iii) columns under pure axial compression, (iv) circular columns in flexure, and (v) rectangular columns in flexure. For each group, a summary of all the previous research are provided. Through the regression analyses, the experimental results of each abovementioned groups are used to examine the adverse effect of corrosion on ductility and, flexural, shear, and axial capacity loss of the corroded RC components. Finally, the observed results of the previous experimental studies are compared with the predicted values using the state-of-the-art numerical models currently available in the literature. The summarised experimental results show that corrosion has much more adverse impact on ductility of the RC columns than strength. However, the effect of corrosion on ductility and strength reduction of RC beams is the same. Moreover, results of cross-sectional moment-curvature analyses using the state-of-the-art corrosion damage models show a good correlation between the predicted residual flexural capacity and observed experimental results. Finally, the existing shortcomings in the literature and open issues to be addressed in the future research are discussed, and some recommendations are provided.

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Kashani et al_Accepted Manuscript - Accepted Manuscript
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More information

Accepted/In Press date: 23 January 2019
e-pub ahead of print date: 24 April 2019
Published date: July 2019
Keywords: Corrosion, residual capacity, ductility loss, RC component, numerical modelling

Identifiers

Local EPrints ID: 428262
URI: https://eprints.soton.ac.uk/id/eprint/428262
ISSN: 1084-0702
PURE UUID: 42ccdceb-abc0-4cf8-b250-7ce5c25bfea2
ORCID for Mohammad Kashani: ORCID iD orcid.org/0000-0003-0008-0007

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Date deposited: 19 Feb 2019 17:30
Last modified: 24 May 2019 04:01

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