Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios

Autores
Conforti, Antonio; Zerbino, Raul Luis; Plizzari, Giovanni
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The use of fibers in reinforced concrete (RC) beams mainly improves both the bearing capacity and the cracking control. In this way, positive effects on the service life of RC structures can be expected. In this paper, the fiber influence on the flexural behavior of RC beams with different longitudinal reinforcement ratios (0.5% ≤ ρs ≤ 1.2%) is analyzed by testing small-scale RC beams. Concretes incorporating 0, 25 and 50 kg/m3 of steel, 6 and 12 kg/m3 of glass macrofibers, and 5 and 10 kg/m3 of polymer macrofibers were studied. Crack and deflection control, as well as bearing capacity and crack localization were evaluated for a broad range of fiber-reinforced concrete (FRC) toughness. It is verified that fibers, in the longitudinal reinforcement ratio considered, improve the bending behavior at serviceability limit state (SLS) and ultimate limit state (ULS) of RC beams, without limiting the structure ductility. It was also confirmed the philosophy of the fib Model Code 2010, such that FRC can be considered as a composite material where performance parameters govern its mechanical behavior. Finally, the several data available allowed to deeply analyze fib Model Code 2010 formulations (mean crack spacing and flexural bearing capacity) and to propose modifications where needed.
Fil: Conforti, Antonio. University of Brescia; Italia
Fil: Zerbino, Raul Luis. Universidad Nacional de La Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Plizzari, Giovanni. University of Brescia; Italia
Materia
CRACK SPACING
CRACKING CONTROL
FIBER-REINFORCED CONCRETE
FLEXURE
LONGITUDINAL REINFORCEMENT RATIO
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/133452
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratiosConforti, AntonioZerbino, Raul LuisPlizzari, GiovanniCRACK SPACINGCRACKING CONTROLFIBER-REINFORCED CONCRETEFLEXURELONGITUDINAL REINFORCEMENT RATIOhttps://purl.org/becyt/ford/2.1https://purl.org/becyt/ford/2The use of fibers in reinforced concrete (RC) beams mainly improves both the bearing capacity and the cracking control. In this way, positive effects on the service life of RC structures can be expected. In this paper, the fiber influence on the flexural behavior of RC beams with different longitudinal reinforcement ratios (0.5% ≤ ρs ≤ 1.2%) is analyzed by testing small-scale RC beams. Concretes incorporating 0, 25 and 50 kg/m3 of steel, 6 and 12 kg/m3 of glass macrofibers, and 5 and 10 kg/m3 of polymer macrofibers were studied. Crack and deflection control, as well as bearing capacity and crack localization were evaluated for a broad range of fiber-reinforced concrete (FRC) toughness. It is verified that fibers, in the longitudinal reinforcement ratio considered, improve the bending behavior at serviceability limit state (SLS) and ultimate limit state (ULS) of RC beams, without limiting the structure ductility. It was also confirmed the philosophy of the fib Model Code 2010, such that FRC can be considered as a composite material where performance parameters govern its mechanical behavior. Finally, the several data available allowed to deeply analyze fib Model Code 2010 formulations (mean crack spacing and flexural bearing capacity) and to propose modifications where needed.Fil: Conforti, Antonio. University of Brescia; ItaliaFil: Zerbino, Raul Luis. Universidad Nacional de La Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Plizzari, Giovanni. University of Brescia; ItaliaWiley-Blackwell2021-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/133452Conforti, Antonio; Zerbino, Raul Luis; Plizzari, Giovanni; Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios; Wiley-Blackwell; Structural Concrete; 22; 1; 2-2021; 347-3601464-41771751-7648CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1002/suco.201900575info:eu-repo/semantics/altIdentifier/doi/10.1002/suco.201900575info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:25Zoai:ri.conicet.gov.ar:11336/133452instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:25.754CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
title Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
spellingShingle Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
Conforti, Antonio
CRACK SPACING
CRACKING CONTROL
FIBER-REINFORCED CONCRETE
FLEXURE
LONGITUDINAL REINFORCEMENT RATIO
title_short Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
title_full Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
title_fullStr Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
title_full_unstemmed Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
title_sort Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios
dc.creator.none.fl_str_mv Conforti, Antonio
Zerbino, Raul Luis
Plizzari, Giovanni
author Conforti, Antonio
author_facet Conforti, Antonio
Zerbino, Raul Luis
Plizzari, Giovanni
author_role author
author2 Zerbino, Raul Luis
Plizzari, Giovanni
author2_role author
author
dc.subject.none.fl_str_mv CRACK SPACING
CRACKING CONTROL
FIBER-REINFORCED CONCRETE
FLEXURE
LONGITUDINAL REINFORCEMENT RATIO
topic CRACK SPACING
CRACKING CONTROL
FIBER-REINFORCED CONCRETE
FLEXURE
LONGITUDINAL REINFORCEMENT RATIO
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.1
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The use of fibers in reinforced concrete (RC) beams mainly improves both the bearing capacity and the cracking control. In this way, positive effects on the service life of RC structures can be expected. In this paper, the fiber influence on the flexural behavior of RC beams with different longitudinal reinforcement ratios (0.5% ≤ ρs ≤ 1.2%) is analyzed by testing small-scale RC beams. Concretes incorporating 0, 25 and 50 kg/m3 of steel, 6 and 12 kg/m3 of glass macrofibers, and 5 and 10 kg/m3 of polymer macrofibers were studied. Crack and deflection control, as well as bearing capacity and crack localization were evaluated for a broad range of fiber-reinforced concrete (FRC) toughness. It is verified that fibers, in the longitudinal reinforcement ratio considered, improve the bending behavior at serviceability limit state (SLS) and ultimate limit state (ULS) of RC beams, without limiting the structure ductility. It was also confirmed the philosophy of the fib Model Code 2010, such that FRC can be considered as a composite material where performance parameters govern its mechanical behavior. Finally, the several data available allowed to deeply analyze fib Model Code 2010 formulations (mean crack spacing and flexural bearing capacity) and to propose modifications where needed.
Fil: Conforti, Antonio. University of Brescia; Italia
Fil: Zerbino, Raul Luis. Universidad Nacional de La Plata. Facultad de Ingeniería; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Plizzari, Giovanni. University of Brescia; Italia
description The use of fibers in reinforced concrete (RC) beams mainly improves both the bearing capacity and the cracking control. In this way, positive effects on the service life of RC structures can be expected. In this paper, the fiber influence on the flexural behavior of RC beams with different longitudinal reinforcement ratios (0.5% ≤ ρs ≤ 1.2%) is analyzed by testing small-scale RC beams. Concretes incorporating 0, 25 and 50 kg/m3 of steel, 6 and 12 kg/m3 of glass macrofibers, and 5 and 10 kg/m3 of polymer macrofibers were studied. Crack and deflection control, as well as bearing capacity and crack localization were evaluated for a broad range of fiber-reinforced concrete (FRC) toughness. It is verified that fibers, in the longitudinal reinforcement ratio considered, improve the bending behavior at serviceability limit state (SLS) and ultimate limit state (ULS) of RC beams, without limiting the structure ductility. It was also confirmed the philosophy of the fib Model Code 2010, such that FRC can be considered as a composite material where performance parameters govern its mechanical behavior. Finally, the several data available allowed to deeply analyze fib Model Code 2010 formulations (mean crack spacing and flexural bearing capacity) and to propose modifications where needed.
publishDate 2021
dc.date.none.fl_str_mv 2021-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/133452
Conforti, Antonio; Zerbino, Raul Luis; Plizzari, Giovanni; Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios; Wiley-Blackwell; Structural Concrete; 22; 1; 2-2021; 347-360
1464-4177
1751-7648
CONICET Digital
CONICET
url http://hdl.handle.net/11336/133452
identifier_str_mv Conforti, Antonio; Zerbino, Raul Luis; Plizzari, Giovanni; Assessing the influence of fibers on the flexural behavior of reinforced concrete beams with different longitudinal reinforcement ratios; Wiley-Blackwell; Structural Concrete; 22; 1; 2-2021; 347-360
1464-4177
1751-7648
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://onlinelibrary.wiley.com/doi/full/10.1002/suco.201900575
info:eu-repo/semantics/altIdentifier/doi/10.1002/suco.201900575
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley-Blackwell
publisher.none.fl_str_mv Wiley-Blackwell
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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