PSI - Issue 22

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect StructuralIntegrity Procedia 00 (2019) 000 – 000 ScienceDirect StructuralIntegrity Procedia 00 (2019) 000 – 000

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Procedia Structural Integrity 22 (2019) 259–266 First International Symposium on Risk and Safety of Complex Structures and Components Temporal analysis of the performance of a RC storage tank considering the corrosion Karima Bouzelha * , Lynda Amazouz, Nassima Miloudi, Hocine Hammoum Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria. Abstract The reinforced concrete (RC) water storage tanks are hydraulic structures that occupy a special place among civil engineering structures. Under the effect of hydrostatic and hydrodynamic loads, their walls undergo horizontal tensile stresses which are absorbed by horizontal reinforcements. Moreover, these structures are subjected to high aggressive atmospheric conditions that expose their walls to a risk of harmful corrosion. This dangerous phenomenon leads to the reduction of their steel reinforcement sections and consequently to the loss of their resistance and function. In this paper, we are interested in the performance analysis of RC storage tanks, taking into account the phenomenon of corrosion of strained reinforcements, considering the environments of different aggressiveness rates. Westergaard method is applied to evaluate the hydrodynamic pressure on the wall. A corrosion model is performed in order to determine the evolution in time of the reinforcement section for different environments considered. Several parameters influencing the corrosion are considered, such as the concrete cover of steel reinforcement and the concentration of chlorides ions. First International Sympos um on Risk and Safety of Complex Structures and Components Temporal analysis of the performance of a RC storage tank considering the corrosion Karima Bouzelha * , Lynda Amazouz, Nassima Miloudi, Hocine Hammoum Department of civil engineering, Mouloud Mammeri University, 15000 Tizi Ouzou, Algeria. Abstract The r inforced concrete (RC) water storage ta ks are hydraulic structures that occupy a sp cial place among civil engin eri g tructures. Under the effect of hydrostatic and hydrody amic loads, their w lls undergo horizontal tensile stresses which are absorbed by horizontal reinforcements. Moreov r, th se stru tu es are subjected to high aggr ssive atmospheric co d ti s that expos their wall to a ri k of harmful corrosion. This dangerous ph nomenon leads to the reduction of their steel reinforcement sections and c nseque tly to the loss of their resistance and fu c on. In this paper, w are int rested in the p forma ce a alysi of RC storage tanks, t king into account the phenomen of corrosion of trained reinf rcem nts, considering the environme ts of differ ggressiveness rates. Westergaard method is applied to evaluate the hydrodynamic pressure on the wall. A corrosion model is performed in order to determine the evolution in time of the reinforcement section for different environments considered. Several parameters influencing the corrosion are considered, such as the concrete cover of steel reinforcement and the concentration f chlorides ions. © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) P er-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers Keywords: Concrete tank, westergaard method, performance, corrosion, concrete cover, steel reinforcement;

Keywords: Concrete tank, westergaard method, performance, corrosion, concrete cover, steel reinforcement;

* Corresponding author. Karima Bouzelha E-mail address: k_bouzel@yahoo.fr

2452-3216© 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review statement: Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers 2452-3216© 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review statement: Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers * Corresponding author. Ka ima Bouz lha E-mail address: k_bouze @yahoo.fr

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers 10.1016/j.prostr.2020.01.033