Reinforcement of Load-Bearing Structural Elements by Curved Composite Plates Made from Braided Natural Fibers

Sofiene Helaili, Taysir Rezgui, Achref Guizani, Fahmi Najjar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

The structures of historical monuments are mainly made up of curved structural elements. These elements can be curved beams composed of a succession of caissons or curved, cylindrical, or spherical plates and shells. The rehabilitation of similar structures requires reinforcements that have the same forms. With current solutions based on external supporting structures reinforcements, the presentability of the reinforced historical monuments is strongly alternated. This paper proposes a curved and thin reinforcement solution based on composites made from Alfa natural fibers. The reinforcement is bonded in perfect adhesion with the structure to be reinforced. A numerical model and experimental tests have been conducted. An analytical model related to composite reinforcement has been developed. The results show that the concrete beam with reinforcement fails at a force value superior to the unreinforced sample beam. Consequently, the equivalent bending resistance is improved by reinforcement. Reinforcements based on epoxy resin and braided alfa fibers are suitable candidates for reinforcing structures made of curved structural elements.

Original languageEnglish
Title of host publicationDesign and Modeling of Mechanical Systems - V - Proceedings of the 9th Conference on Design and Modeling of Mechanical Systems, CMSM 2021
EditorsLassaad Walha, Mohamed Haddar, Abdessalem Jarraya, Fathi Djemal, Mnaouar Chouchane, Nizar Aifaoui, Abdelmajid Benamara, Fakher Chaari, Moez Abdennadher
PublisherSpringer Science and Business Media Deutschland GmbH
Pages171-178
Number of pages8
ISBN (Print)9783031146145
DOIs
StatePublished - 2023
Externally publishedYes
Event9th International Congress on Design and Modeling of Mechanical Systems, CMSM 2021 - Hammamet, Tunisia
Duration: 20 Dec 202122 Dec 2021

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

Conference

Conference9th International Congress on Design and Modeling of Mechanical Systems, CMSM 2021
Country/TerritoryTunisia
CityHammamet
Period20/12/2122/12/21

Keywords

  • Alfa natural fiber
  • Composites
  • Curved beams
  • Historical monuments rehabilitation

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