Accurate cover crack modelling of reinforced concrete structures subjected to non-uniform corrosion
Xi, Xun and Yang, Shangtong and Li, Chun-Qing (2018) Accurate cover crack modelling of reinforced concrete structures subjected to non-uniform corrosion. Structure and Infrastructure Engineering, 14 (12). pp. 1628-1640. ISSN 1744-8980 (https://doi.org/10.1080/15732479.2018.1486440)
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Abstract
Concrete cover cracking caused by reinforcement corrosion is a significant durability problem of reinforced concrete structures. Extensive research has been carried out in the last few decades while most were focused on corrosion of a single reinforcing bar. Very little research has examined the whole cover cracking of reinforced concrete structures due to multiple reinforcement corrosion. This paper develops a numerical model to predict the structural failure of the whole cover of concrete induced by corrosion of multiple reinforcing bars. Moreover, a non-uniform corrosion model is established based on experimental results, in contrast to conventional uniform assumption. Two typical cover failure modes under the non-uniform corrosion of multiple reinforcing bars are identified and discussed. The effects of cover thickness, reinforcement spacing, fracture energy of concrete, etc., on cover cracking patterns and crack width are also investigated. The derived numerical model is verified by comparing the results with those from experiments in literature. Accurate prediction of concrete cover cracking can allow timely maintenance of existing structures and rational design for new buildings which prolongs the service life of the reinforced concrete structures.
ORCID iDs
Xi, Xun, Yang, Shangtong ORCID: https://orcid.org/0000-0001-9977-5954 and Li, Chun-Qing;-
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Item type: Article ID code: 63966 Dates: DateEvent1 December 2018Published12 October 2018Published Online5 March 2018AcceptedSubjects: Technology > Engineering (General). Civil engineering (General) Department: Faculty of Engineering > Civil and Environmental Engineering Depositing user: Pure Administrator Date deposited: 09 May 2018 12:51 Last modified: 11 Nov 2024 11:59 URI: https://strathprints.strath.ac.uk/id/eprint/63966