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Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars

In this manuscript, structural testing was conducted on high-strength concrete slab specimens to investigate the behavior of such specimens when reinforced with a locally produced GFRP reinforcement. Subsequently, a finite element model (FEM) was constructed and validated against the experimental re...

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Autores principales: Adam, Maher A., Erfan, Abeer M., Habib, Fatma A., El-Sayed, Taha A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8433731/
https://www.ncbi.nlm.nih.gov/pubmed/34503037
http://dx.doi.org/10.3390/polym13172997
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author Adam, Maher A.
Erfan, Abeer M.
Habib, Fatma A.
El-Sayed, Taha A.
author_facet Adam, Maher A.
Erfan, Abeer M.
Habib, Fatma A.
El-Sayed, Taha A.
author_sort Adam, Maher A.
collection PubMed
description In this manuscript, structural testing was conducted on high-strength concrete slab specimens to investigate the behavior of such specimens when reinforced with a locally produced GFRP reinforcement. Subsequently, a finite element model (FEM) was constructed and validated against the experimental results. In the experimental phase, a total of eleven specimens (nine were reinforced with GFRP, while two were reinforced with conventional steel) were constructed and tested. The slabs dimensions are 700 mm × 1750 mm with variable thickness from 100 mm to 150 mm and different reinforcement ratios using different diameters. The structural behavior of the tested slabs was investigated in terms of ultimate load, ultimate deflection, load–deflection relationship, and crack pattern. Additionally, a nonlinear finite element model using the software ANSYS 2019-R1 was constructed to simulate the structural behavior of slabs reinforced with GFRP bars. The results obtained from the finite element analysis are compared with experimental results. The outcomes showed that the contribution of GFRP rebars in concrete slabs improved slab ductility and exhibited higher deflection when compared with traditional steel rebars. Good agreement between experimental and nonlinear analysis was obtained.
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spelling pubmed-84337312021-09-12 Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars Adam, Maher A. Erfan, Abeer M. Habib, Fatma A. El-Sayed, Taha A. Polymers (Basel) Article In this manuscript, structural testing was conducted on high-strength concrete slab specimens to investigate the behavior of such specimens when reinforced with a locally produced GFRP reinforcement. Subsequently, a finite element model (FEM) was constructed and validated against the experimental results. In the experimental phase, a total of eleven specimens (nine were reinforced with GFRP, while two were reinforced with conventional steel) were constructed and tested. The slabs dimensions are 700 mm × 1750 mm with variable thickness from 100 mm to 150 mm and different reinforcement ratios using different diameters. The structural behavior of the tested slabs was investigated in terms of ultimate load, ultimate deflection, load–deflection relationship, and crack pattern. Additionally, a nonlinear finite element model using the software ANSYS 2019-R1 was constructed to simulate the structural behavior of slabs reinforced with GFRP bars. The results obtained from the finite element analysis are compared with experimental results. The outcomes showed that the contribution of GFRP rebars in concrete slabs improved slab ductility and exhibited higher deflection when compared with traditional steel rebars. Good agreement between experimental and nonlinear analysis was obtained. MDPI 2021-09-03 /pmc/articles/PMC8433731/ /pubmed/34503037 http://dx.doi.org/10.3390/polym13172997 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Adam, Maher A.
Erfan, Abeer M.
Habib, Fatma A.
El-Sayed, Taha A.
Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars
title Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars
title_full Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars
title_fullStr Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars
title_full_unstemmed Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars
title_short Structural Behavior of High-Strength Concrete Slabs Reinforced with GFRP Bars
title_sort structural behavior of high-strength concrete slabs reinforced with gfrp bars
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8433731/
https://www.ncbi.nlm.nih.gov/pubmed/34503037
http://dx.doi.org/10.3390/polym13172997
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