Probability calculation of rebars corrosion in reinforced concrete using css algorithms

Reinforcement inside the concrete is protected from corrosion and its damages until several years after the construction. After corrosion initiation, the cross section of reinforcement begins to reduce and often load bearing of the reinforced concrete structure will be reduced significantly. Corrosi...

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Bibliographic Details
Published inJournal of Central South University Vol. 22; no. 8; pp. 3141 - 3150
Main Authors Shayanfar, Mohsen-Ali, Barkhordari, Mohammad-Ali, Ghanooni-Bagha, Mohammad
Format Journal Article
LanguageEnglish
Published Changsha Central South University 01.08.2015
Subjects
Engineering
Metallic Materials
chloride diffusion
reinforced concrete
charged system search (CSS) optimization
reliability index
carbonation
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ISSN2095-2899
2227-5223
DOI10.1007/s11771-015-2851-9

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Summary:Reinforcement inside the concrete is protected from corrosion and its damages until several years after the construction. After corrosion initiation, the cross section of reinforcement begins to reduce and often load bearing of the reinforced concrete structure will be reduced significantly. Corrosion of reinforcements in concrete in polluted and contaminated areas can occur in two ways: chloride and carbonation. In this work, meta-heuristic approach of charged system search (CSS) is used to calculate corrosion occurrence probability due to chloride ions penetration. The model efficiency is verified by comparing the available examples in technical literature and results of Monte Carlo analysis. According to the analyses performed, using different probabilistic distributions regardless of probabilistic moments based on real distribution leads to diverse results. In addition, influence of each effective parameter in corrosion occurrence varies by changing other parameters.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-015-2851-9