Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte

Autores
Rougier, Viviana Carolina; Denardi, Miqueas Ceferino; Vercesi, Darío Orestes
Año de publicación
2021
Idioma
español castellano
Tipo de recurso
documento de conferencia
Estado
versión aceptada
Descripción
Concrete is very strong in compression, but it has a very low tensile strength. To improve its tensile strength, reinforcing steel is often used in the concrete. However, the reinforcement of the cementitious matrix with discrete fibers has gained increasing recognition. The addition of fibers randomly distributed as reinforcement of cement-based matrices can produce a material with improved tensile strength and deformational characteristics. Different types of fibers can be employed to reinforce concrete. Nevertheless, the use of steel fibers is particularly attractive in concrete members with high reinforcement congestion, like deep beams, when conventional stirrups can be eliminated or reduced. So, the effects of steel fibers on the shear strength of reinforced concrete deep beams were evaluated by different ways: experimental, theoretical, and numerical. A total of six beams were subjected to a concentrated load P at their center and two steel fiber volume fractions were used. Two specimens were elaborated with plain concrete and longitudinal steel reinforcement. Web reinforcement was used in one of those beams and the other was made without stirrups. The others four specimens were built with steel fibers reinforced concrete (SFRC), longitudinal steel reinforcement and without stirrups. The test results indicated that the fibers influenced the shear strength of reinforced concrete deep beams. Shear strength increased with increasing fiber volume fraction, but steel fibers could not totally replace the conventional steel stirrups. Comparisons between experimental shear strength values and predictions, using empirical models developed by different authors, showed satisfactory results. In addition, the comparison between numerical and experimental values indicated that finite element analysis (FEA) was a reliable tool to simulate nonlinear behavior of SFRC deep beams.
Fil: Rougier, Viviana Carolina. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay. Departamento Civil. Grupo de Investigación de Mecánica Computacional y de Estructuras; Argentina.
Fil: Denardi, Miqueas Ceferino. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay. Departamento Civil. Grupo de Investigación de Mecánica Computacional y de Estructuras; Argentina.
Fil: Vercesi, Darío Orestes. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.
Fil: Rougier, Viviana Carolina. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.
Fil: Denardi, Miqueas Ceferino. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.
Materia
SFRC
Deep beams
Shear strength
Finite element
Nivel de accesibilidad
acceso abierto
Condiciones de uso
2024-03-27T12:53:33Z
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/10174
Acceder
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network_acronym_str RIAUTN
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spelling Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corteRougier, Viviana CarolinaDenardi, Miqueas CeferinoVercesi, Darío OrestesSFRCDeep beamsShear strengthFinite elementConcrete is very strong in compression, but it has a very low tensile strength. To improve its tensile strength, reinforcing steel is often used in the concrete. However, the reinforcement of the cementitious matrix with discrete fibers has gained increasing recognition. The addition of fibers randomly distributed as reinforcement of cement-based matrices can produce a material with improved tensile strength and deformational characteristics. Different types of fibers can be employed to reinforce concrete. Nevertheless, the use of steel fibers is particularly attractive in concrete members with high reinforcement congestion, like deep beams, when conventional stirrups can be eliminated or reduced. So, the effects of steel fibers on the shear strength of reinforced concrete deep beams were evaluated by different ways: experimental, theoretical, and numerical. A total of six beams were subjected to a concentrated load P at their center and two steel fiber volume fractions were used. Two specimens were elaborated with plain concrete and longitudinal steel reinforcement. Web reinforcement was used in one of those beams and the other was made without stirrups. The others four specimens were built with steel fibers reinforced concrete (SFRC), longitudinal steel reinforcement and without stirrups. The test results indicated that the fibers influenced the shear strength of reinforced concrete deep beams. Shear strength increased with increasing fiber volume fraction, but steel fibers could not totally replace the conventional steel stirrups. Comparisons between experimental shear strength values and predictions, using empirical models developed by different authors, showed satisfactory results. In addition, the comparison between numerical and experimental values indicated that finite element analysis (FEA) was a reliable tool to simulate nonlinear behavior of SFRC deep beams.Fil: Rougier, Viviana Carolina. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay. Departamento Civil. Grupo de Investigación de Mecánica Computacional y de Estructuras; Argentina.Fil: Denardi, Miqueas Ceferino. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay. Departamento Civil. Grupo de Investigación de Mecánica Computacional y de Estructuras; Argentina.Fil: Vercesi, Darío Orestes. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.Fil: Rougier, Viviana Carolina. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.Fil: Denardi, Miqueas Ceferino. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.2024-03-27T12:53:33Z2024-03-27T12:53:33Z2021-06-05info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/acceptedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciapdfapplication/pdf17º Congreso Internacional sobre Patología y rehabilitación de las Construcciones CIMPAR, Fortaleza, Brasil (2021)http://hdl.handle.net/20.500.12272/10174spainfo:eu-repo/semantics/openAccess2024-03-27T12:53:33Zhttp://creativecommons.org/licenses/by-nc-nd/4.0/Attribution-NonCommercial-NoDerivatives 4.0 InternacionalRougier, Viviana Carolina ; Denardi Miqueas Ceferino ; Vercesi, Darío OrestesNo comercial con fines académicosreponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-09-24T12:44:34Zoai:ria.utn.edu.ar:20.500.12272/10174instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:44:35.395Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
title Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
spellingShingle Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
Rougier, Viviana Carolina
SFRC
Deep beams
Shear strength
Finite element
title_short Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
title_full Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
title_fullStr Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
title_full_unstemmed Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
title_sort Vigas de gran altura de hormigón reforzado con fibras. Evaluación de la resistencia al corte
dc.creator.none.fl_str_mv Rougier, Viviana Carolina
Denardi, Miqueas Ceferino
Vercesi, Darío Orestes
author Rougier, Viviana Carolina
author_facet Rougier, Viviana Carolina
Denardi, Miqueas Ceferino
Vercesi, Darío Orestes
author_role author
author2 Denardi, Miqueas Ceferino
Vercesi, Darío Orestes
author2_role author
author
dc.subject.none.fl_str_mv SFRC
Deep beams
Shear strength
Finite element
topic SFRC
Deep beams
Shear strength
Finite element
dc.description.none.fl_txt_mv Concrete is very strong in compression, but it has a very low tensile strength. To improve its tensile strength, reinforcing steel is often used in the concrete. However, the reinforcement of the cementitious matrix with discrete fibers has gained increasing recognition. The addition of fibers randomly distributed as reinforcement of cement-based matrices can produce a material with improved tensile strength and deformational characteristics. Different types of fibers can be employed to reinforce concrete. Nevertheless, the use of steel fibers is particularly attractive in concrete members with high reinforcement congestion, like deep beams, when conventional stirrups can be eliminated or reduced. So, the effects of steel fibers on the shear strength of reinforced concrete deep beams were evaluated by different ways: experimental, theoretical, and numerical. A total of six beams were subjected to a concentrated load P at their center and two steel fiber volume fractions were used. Two specimens were elaborated with plain concrete and longitudinal steel reinforcement. Web reinforcement was used in one of those beams and the other was made without stirrups. The others four specimens were built with steel fibers reinforced concrete (SFRC), longitudinal steel reinforcement and without stirrups. The test results indicated that the fibers influenced the shear strength of reinforced concrete deep beams. Shear strength increased with increasing fiber volume fraction, but steel fibers could not totally replace the conventional steel stirrups. Comparisons between experimental shear strength values and predictions, using empirical models developed by different authors, showed satisfactory results. In addition, the comparison between numerical and experimental values indicated that finite element analysis (FEA) was a reliable tool to simulate nonlinear behavior of SFRC deep beams.
Fil: Rougier, Viviana Carolina. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay. Departamento Civil. Grupo de Investigación de Mecánica Computacional y de Estructuras; Argentina.
Fil: Denardi, Miqueas Ceferino. Universidad Tecnológica Nacional. Facultad Regional Concepción del Uruguay. Departamento Civil. Grupo de Investigación de Mecánica Computacional y de Estructuras; Argentina.
Fil: Vercesi, Darío Orestes. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.
Fil: Rougier, Viviana Carolina. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.
Fil: Denardi, Miqueas Ceferino. Universidad Tecnológica Nacional. Facultad Regional Concordia; Argentina.
description Concrete is very strong in compression, but it has a very low tensile strength. To improve its tensile strength, reinforcing steel is often used in the concrete. However, the reinforcement of the cementitious matrix with discrete fibers has gained increasing recognition. The addition of fibers randomly distributed as reinforcement of cement-based matrices can produce a material with improved tensile strength and deformational characteristics. Different types of fibers can be employed to reinforce concrete. Nevertheless, the use of steel fibers is particularly attractive in concrete members with high reinforcement congestion, like deep beams, when conventional stirrups can be eliminated or reduced. So, the effects of steel fibers on the shear strength of reinforced concrete deep beams were evaluated by different ways: experimental, theoretical, and numerical. A total of six beams were subjected to a concentrated load P at their center and two steel fiber volume fractions were used. Two specimens were elaborated with plain concrete and longitudinal steel reinforcement. Web reinforcement was used in one of those beams and the other was made without stirrups. The others four specimens were built with steel fibers reinforced concrete (SFRC), longitudinal steel reinforcement and without stirrups. The test results indicated that the fibers influenced the shear strength of reinforced concrete deep beams. Shear strength increased with increasing fiber volume fraction, but steel fibers could not totally replace the conventional steel stirrups. Comparisons between experimental shear strength values and predictions, using empirical models developed by different authors, showed satisfactory results. In addition, the comparison between numerical and experimental values indicated that finite element analysis (FEA) was a reliable tool to simulate nonlinear behavior of SFRC deep beams.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-05
2024-03-27T12:53:33Z
2024-03-27T12:53:33Z
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/acceptedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str acceptedVersion
dc.identifier.none.fl_str_mv 17º Congreso Internacional sobre Patología y rehabilitación de las Construcciones CIMPAR, Fortaleza, Brasil (2021)
http://hdl.handle.net/20.500.12272/10174
identifier_str_mv 17º Congreso Internacional sobre Patología y rehabilitación de las Construcciones CIMPAR, Fortaleza, Brasil (2021)
url http://hdl.handle.net/20.500.12272/10174
dc.language.none.fl_str_mv spa
language spa
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
2024-03-27T12:53:33Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Rougier, Viviana Carolina ; Denardi Miqueas Ceferino ; Vercesi, Darío Orestes
No comercial con fines académicos
eu_rights_str_mv openAccess
rights_invalid_str_mv 2024-03-27T12:53:33Z
http://creativecommons.org/licenses/by-nc-nd/4.0/
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Rougier, Viviana Carolina ; Denardi Miqueas Ceferino ; Vercesi, Darío Orestes
No comercial con fines académicos
dc.format.none.fl_str_mv pdf
application/pdf
dc.source.none.fl_str_mv reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
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