Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement

[EN] Thin-walled textile-reinforced concrete beams have recently emerged as a promising approach for material-efficient design. However, the increased complexity of the formwork is a major challenge in implementing such elements for broader use in the construction industry. This study presents a nov...

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Autores: Lee, Minu, Popescu, Mariana, Kaufmann, Walter, Mata Falcon, Jaime|||0000-0001-8701-4410
Formato: artículo
Fecha de publicación:2023
País:España
Recursos:Universitat Politècnica de València (UPV)
Repositorio:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
Idioma:inglés
OAI Identifier:oai:riunet.upv.es:10251/209936
Acesso em linha:https://riunet.upv.es/handle/10251/209936
Access Level:acceso abierto
Palavra-chave:Crack behavior
Digital image correlation
Experimental study
KnitCrete, Lightweight
Concrete structures
Shear
Textile-reinforced concrete
MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS
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spelling Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcementLee, MinuPopescu, MarianaKaufmann, WalterMata Falcon, Jaime|||0000-0001-8701-4410Crack behaviorDigital image correlationExperimental studyKnitCrete, LightweightConcrete structuresShearTextile-reinforced concreteMECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS[EN] Thin-walled textile-reinforced concrete beams have recently emerged as a promising approach for material-efficient design. However, the increased complexity of the formwork is a major challenge in implementing such elements for broader use in the construction industry. This study presents a novel type of stay-in-place flexible formworks with integrated textile reinforcement. The use of weft-knitted textiles allows the integration of continuous high-strength rovings as shear reinforcement and the introduction of spatial features within the fabric to guide bending-active rods to shape the complex cross-section geometry. The manufacturing procedure and the structural performance were investigated in an experimental campaign consisting of four concrete beams with I-profile cross sections tested in three-point bending, where aramid rovings were used for the shear and conventional deformed steel bars for the flexural reinforcement. The transverse reinforcement ratio proved to be essential in increasing the shear strength. Thereby, the use of digital image correlation measurements of the surface deformations allowed the direct assessment of the strains and, thus, the mechanical activation of the textile reinforcement. The full tensile capacity of all the aramid rovings crossing the governing crack could not be exploited due to the brittle material behavior, resulting in a progressive failure once the first roving reached its tensile strength. Compatibility-based stress fields were used to predict the load-deformation and failure behavior of the tested beams, which resulted in an excellent agreement of the ultimate loads and failure modes obtained from the model with the observations and results from the experiments.Swiss National Science Foundation, Grant/Award Number: 51NF40-141853John Wiley & SonsDepartamento de Mecánica de los Medios Continuos y Teoría de EstructurasEscuela Técnica Superior de Ingeniería de Caminos, Canales y PuertosSwiss National Science FoundationRepositorio Institucional de la Universitat Politècnica de València Riunet20232023-08-01journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://riunet.upv.es/handle/10251/209936reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valénciainstname:Universitat Politècnica de València (UPV)InglésengSwiss National Science Foundation https://doi.org/10.13039/501100001711 51NF40-141853open accesshttp://purl.org/coar/access_right/c_abf2Reconocimiento (by)http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:riunet.upv.es:10251/2099362026-06-13T07:49:27Z
dc.title.none.fl_str_mv Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
title Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
spellingShingle Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
Lee, Minu
Crack behavior
Digital image correlation
Experimental study
KnitCrete, Lightweight
Concrete structures
Shear
Textile-reinforced concrete
MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS
title_short Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
title_full Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
title_fullStr Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
title_full_unstemmed Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
title_sort Thin-walled concrete beams with stay-in-place flexible formworks and integrated textile shear reinforcement
dc.creator.none.fl_str_mv Lee, Minu
Popescu, Mariana
Kaufmann, Walter
Mata Falcon, Jaime|||0000-0001-8701-4410
author Lee, Minu
author_facet Lee, Minu
Popescu, Mariana
Kaufmann, Walter
Mata Falcon, Jaime|||0000-0001-8701-4410
author_role author
author2 Popescu, Mariana
Kaufmann, Walter
Mata Falcon, Jaime|||0000-0001-8701-4410
author2_role author
author
author
dc.contributor.none.fl_str_mv Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras
Escuela Técnica Superior de Ingeniería de Caminos, Canales y Puertos
Swiss National Science Foundation
Repositorio Institucional de la Universitat Politècnica de València Riunet
dc.subject.none.fl_str_mv Crack behavior
Digital image correlation
Experimental study
KnitCrete, Lightweight
Concrete structures
Shear
Textile-reinforced concrete
MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS
topic Crack behavior
Digital image correlation
Experimental study
KnitCrete, Lightweight
Concrete structures
Shear
Textile-reinforced concrete
MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS
description [EN] Thin-walled textile-reinforced concrete beams have recently emerged as a promising approach for material-efficient design. However, the increased complexity of the formwork is a major challenge in implementing such elements for broader use in the construction industry. This study presents a novel type of stay-in-place flexible formworks with integrated textile reinforcement. The use of weft-knitted textiles allows the integration of continuous high-strength rovings as shear reinforcement and the introduction of spatial features within the fabric to guide bending-active rods to shape the complex cross-section geometry. The manufacturing procedure and the structural performance were investigated in an experimental campaign consisting of four concrete beams with I-profile cross sections tested in three-point bending, where aramid rovings were used for the shear and conventional deformed steel bars for the flexural reinforcement. The transverse reinforcement ratio proved to be essential in increasing the shear strength. Thereby, the use of digital image correlation measurements of the surface deformations allowed the direct assessment of the strains and, thus, the mechanical activation of the textile reinforcement. The full tensile capacity of all the aramid rovings crossing the governing crack could not be exploited due to the brittle material behavior, resulting in a progressive failure once the first roving reached its tensile strength. Compatibility-based stress fields were used to predict the load-deformation and failure behavior of the tested beams, which resulted in an excellent agreement of the ultimate loads and failure modes obtained from the model with the observations and results from the experiments.
publishDate 2023
dc.date.none.fl_str_mv 2023
2023-08-01
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://riunet.upv.es/handle/10251/209936
url https://riunet.upv.es/handle/10251/209936
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv Swiss National Science Foundation https://doi.org/10.13039/501100001711 51NF40-141853
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Reconocimiento (by)
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname:Universitat Politècnica de València (UPV)
instname_str Universitat Politècnica de València (UPV)
reponame_str RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
collection RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869407358892900352
score 15,811543

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