Temporal analysis of the performance of an elevated concrete tank considering the corrosion of the steel reinforcement

Hocine Hammoum; Nassima  Miloudi; Karima Bouzelha; Younes Aoues; Ouali Amiri

doi:10.3221/IGF-ESIS.56.08

Temporal analysis of the performance of an elevated concrete tank considering the corrosion of the steel reinforcement

Authors

Hocine Hammoum Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.
Nassima Miloudi Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.
Karima Bouzelha Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.
Younes Aoues Laboratoire d’Optimisation et Fiabilité en Mécanique des Structures, INSA de Rouen, France.
Ouali Amiri Institut de recherche en génie civil et mécanique IEG - GeM, Polytech Nantes, France.

DOI:

https://doi.org/10.3221/IGF-ESIS.56.08

Keywords:

RC elevated tank, pitting corrosion, reinforcement, performance, seismic actions, lifetime

Abstract

Reinforced concrete water storage tanks are civil engineering structures subject to very aggressive atmospheric conditions that expose them to harmful corrosion risk. This dangerous phenomenon caused by the penetration of chloride ions causes pitting corrosion and leads to the reduction of the section of the reinforcements and consequently to the loss of strength and the structure performance. In this study, we are interested in analyzing the performance of an elevated storage tank, taking into account the corrosion of the reinforcements subjected to tensile stress, by considering environments with different rates of aggressiveness. A method based on Housner's model is used to evaluate the tension stresses in the reinforced concrete (RC) pedestal (supporting system) of the tank, subjected to the seismic actions. A pitting corrosion model is developed in order to determine the evolution in time of the reinforcements section in different environments. Several parameters influencing corrosion are taken into account, such as concrete cover and the concentration of chlorides ions.

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Author Biographies

Nassima Miloudi, Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.

Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.
Karima Bouzelha, Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.

Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria.
Younes Aoues, Laboratoire d’Optimisation et Fiabilité en Mécanique des Structures, INSA de Rouen, France.

Laboratoire d’Optimisation et Fiabilité en Mécanique des Structures, INSA de Rouen, France.
Ouali Amiri, Institut de recherche en génie civil et mécanique IEG - GeM, Polytech Nantes, France.

Institut de recherche en génie civil et mécanique IEG - GeM, Polytech Nantes, France.

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Published

28-03-2021

Issue

Vol. 15 No. 56 (2021): April 2021

Section

Structural Integrity and Durability of Structures

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Temporal analysis of the performance of an elevated concrete tank considering the corrosion of the steel reinforcement. (2021). Frattura Ed Integrità Strutturale, 15(56), 94-114. https://doi.org/10.3221/IGF-ESIS.56.08