Reinforcement Analysis of a Water Tank Wall by External Prestressing

Hocine Hammoum; Karima Bouzelha; Amar Aliche

Reinforcement Analysis of a Water Tank Wall by External Prestressing

Abstract

Water storage structures age and deteriorate over time, which can make them vulnerable. There are many reinforcement methods available to rehabilitate them. Our research focuses on a system for reinforcing the wall of a concrete tank, subjected to hydrostatic pressure, by additional external prestressing. The role of the latter will be to relieve the wall of hydrostatic or even hydrodynamic tensile stresses, and allow it to return to an acceptable service state. This technique of adding external prestressing cables was initially introduced in the reinforcement and rehabilitation of civil engineering structures, mainly from the 1970s. In this study, a deterministic analysis is developed for the dimensioning of the external prestressing necessary to absorb part of the hydrostatic pressure exerted on the wall, taking into account the different instantaneous and deferred stress losses. Additionally, the hydrodynamic effect is evaluated by the Westergaard method, to analyze the stress state induced by the fluid-structure interaction with respect to the seismic action. In a second step, a reliability analysis is developed by considering three random variables, including the compressive strength of the concrete, the seismic intensity and the eccentricity of external prestressing cables. This reliability analysis is conducted using a computer code developed with Matlab© software based on the Monte Carlo simulations method to assess the probability of failure in tension of the circular wall for different seismic intensities. The developed approach was applied, for a practical example, whose dimensions are realistic. Fragility curves are developed representing the failure probability in the different levels of seismic acceleration

Keywords

References

Hammoum, H., Bouzelha, K., & Aliche, A. (2025). Reinforcement analysis of a water tank wall by external prestressing. The Eurasia Proceedings of Science, Technology, Engineering and Mathematics (EPSTEM), 36, 21-27.

Details

Primary Language

English

Subjects

Classical Physics (Other)

Journal Section

Research Article

Authors

Hocine Hammoum This is me
Algeria

Karima Bouzelha This is me
Algeria

Amar Aliche This is me
Algeria

Early Pub Date

October 31, 2025

Publication Date

-

Submission Date

June 4, 2025

Acceptance Date

July 8, 2025

Published in Issue

Year 2025 Volume: 36

IZ

https://izlik.org/JA92UF98LU

Cite

RIS / Bibtex

APA

Hammoum, H., Bouzelha, K., & Aliche, A. (2025). Reinforcement Analysis of a Water Tank Wall by External Prestressing. The Eurasia Proceedings of Science Technology Engineering and Mathematics, 36, 21-27. https://izlik.org/JA92UF98LU