Numerical simulation of behavior of reinforced concrete structures considering corrosion effects on bonding

Li, C.Q. and Yang, S. T. and Saafi, M. (2014) Numerical simulation of behavior of reinforced concrete structures considering corrosion effects on bonding. Journal of Structural Engineering, 140 (12). 04014092. ISSN 0733-9445

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    Abstract

    Corrosion of reinforcing steel in concrete can alter the interface between the steel and concrete and thus affects the bond mechanism. This subsequently influences the behavior of reinforced concrete structures in terms of their safety and serviceability. The present paper attempts to develop a numerical method that can simulate the behavior of reinforced concrete walls subjected to steel corrosion in concrete as measured by their load-deflection relationship. The method accounts for the effects of corrosion on the stiffness, maximum strength, residual strength, and failure mode of the bond between the steel and concrete. In the numerical method, the corrosion-affected stiffness and maximum strength of the bond are explicitly expressed as a function of the corrosion rate. It is found in this paper that the increase in the bond strength due to minor corrosion can increase the load-bearing capacity of the wall and the corrosion-affected reinforced concrete walls exhibit less ductile behavior compared with the uncorroded walls. The paper concludes that the developed numerical method can predict the behavior of corrosion-affected reinforced concrete seawalls with reasonable accuracy.

    Creators(s): Li, C.Q., Yang, S. T. ORCID logoORCID: https://orcid.org/0000-0001-9977-5954 and Saafi, M.;
    Item type:Article
    ID code:48412
    Notes:(c) American Society of Civil Engineers
    Keywords:numerical simulation, reinforced concrete, sea walls, corrosion effects, bonding, cracking, finite element modelling, simulation, Engineering (General). Civil engineering (General), Building construction, Building and Construction, Mechanics of Materials, Civil and Structural Engineering, Materials Science(all), Mechanical Engineering
    Subjects:Technology > Engineering (General). Civil engineering (General)
    Technology > Building construction
    Department:Faculty of Engineering > Civil and Environmental Engineering
    Depositing user: Pure Administrator
    Date deposited:04 Jun 2014 09:18
    Last modified:14 Feb 2020 00:39
    URI:https://strathprints.strath.ac.uk/id/eprint/48412
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