自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 22    No. 8    August 2015

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Probability calculation of rebars corrosion in reinforced concrete using css algorithms
Mohsen-Ali Shayanfar, Mohammad-Ali Barkhordari, Mohammad Ghanooni-Bagha

The Centre of Excellence for Fundamental Studies in Structural Engineering,
Iran University of Science and Technology, P.O.BOX: 16765-163, Narmak, Tehran, Iran

Abstract: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.

 

Key words: reinforced concrete; reliability index; chloride diffusion; carbonation; charged system search (CSS) optimization

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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