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Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems
Fabric-reinforced cementitious matrices (FRCMs) are a novel composite material for strengthening structures. Fabric contributes to tying cross-sections under tensile stress. The complexity of the interfaces between the fabric and the matrix does not allow having a simple and accurate model that enab...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8069157/ https://www.ncbi.nlm.nih.gov/pubmed/33918051 http://dx.doi.org/10.3390/ma14081857 |
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author | Mercedes, Luis Escrig, Christian Bernat-Masó, Ernest Gil, Lluís |
author_facet | Mercedes, Luis Escrig, Christian Bernat-Masó, Ernest Gil, Lluís |
author_sort | Mercedes, Luis |
collection | PubMed |
description | Fabric-reinforced cementitious matrices (FRCMs) are a novel composite material for strengthening structures. Fabric contributes to tying cross-sections under tensile stress. The complexity of the interfaces between the fabric and the matrix does not allow having a simple and accurate model that enables practitioners to perform feasible calculations. This work developed an analytical approach and a numerical simulation based on the reduction of FRCMs’ strength capabilities under tensile stress states. The concept of effective strength was estimated for different types of fabrics (basalt, carbon, glass, poly p-phenylene benzobisoxazole (PBO), and steel) from experimental evidence. The proposed models calculate the ultimate bending moment for reinforced concrete (RC) structures strengthened with FRCMs. The numerical models performed simulations that reproduced the moment–deflection curves of the different tested beams. Steel fabric showed the highest contribution to strength (78%), while PBO performed the worst (6%). Basalt and carbon showed irregular contributions. |
format | Online Article Text |
id | pubmed-8069157 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80691572021-04-26 Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems Mercedes, Luis Escrig, Christian Bernat-Masó, Ernest Gil, Lluís Materials (Basel) Article Fabric-reinforced cementitious matrices (FRCMs) are a novel composite material for strengthening structures. Fabric contributes to tying cross-sections under tensile stress. The complexity of the interfaces between the fabric and the matrix does not allow having a simple and accurate model that enables practitioners to perform feasible calculations. This work developed an analytical approach and a numerical simulation based on the reduction of FRCMs’ strength capabilities under tensile stress states. The concept of effective strength was estimated for different types of fabrics (basalt, carbon, glass, poly p-phenylene benzobisoxazole (PBO), and steel) from experimental evidence. The proposed models calculate the ultimate bending moment for reinforced concrete (RC) structures strengthened with FRCMs. The numerical models performed simulations that reproduced the moment–deflection curves of the different tested beams. Steel fabric showed the highest contribution to strength (78%), while PBO performed the worst (6%). Basalt and carbon showed irregular contributions. MDPI 2021-04-08 /pmc/articles/PMC8069157/ /pubmed/33918051 http://dx.doi.org/10.3390/ma14081857 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 Mercedes, Luis Escrig, Christian Bernat-Masó, Ernest Gil, Lluís Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems |
title | Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems |
title_full | Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems |
title_fullStr | Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems |
title_full_unstemmed | Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems |
title_short | Analytical Approach and Numerical Simulation of Reinforced Concrete Beams Strengthened with Different FRCM Systems |
title_sort | analytical approach and numerical simulation of reinforced concrete beams strengthened with different frcm systems |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8069157/ https://www.ncbi.nlm.nih.gov/pubmed/33918051 http://dx.doi.org/10.3390/ma14081857 |
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