Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems

Detalhes bibliográficos
Autor(a) principal: Rimkus, Arvydas
Data de Publicação: 2019
Outros Autores: Barros, Joaquim A. O., Gribniak, Viktor, Rezazadeh, Mohammadali
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/71743
Resumo: Being immune to corrosion, and having a tensile strength up to three times higher than structural steel, glass fiber reinforced polymer (GFRP) bars are suitable for reinforcing concrete structures exposed to aggressive environmental conditions. However, a relatively low elasticity modulus of GFRP bars (in respect to the steel) favors the occurrence of relatively large deformability of cracked reinforced concrete. Lack of ductility and degradation of properties under high temperature can be also identified as debilities of GFRP bars over steel ones. Combining GFRP and steel bars can be a suitable solution to overcoming these concerns. Nevertheless, the application of such hybrid reinforcement systems requires reliable material models. The influence of the relative area of GFRP and steel bars on the tensile capacity of cracked concrete (generally known as tension-stiffening effect), was never investigated from the experimental point of view, mainly crossing results from different tools on the assessment of the cracking process. This paper experimentally investigates deformations and cracking behavior of concrete prisms reinforced with steel bars and GFRP bars in different combinations. The test results of 11 elements are reported. A tensile stress-strain diagram is conceptually proposed for modelling the tension-stiffening effect in elements with such hybrid combination of the reinforcement. The cracking process in terms of crack width and crack spacing is analyzed considering the hybrid reinforcement particularities and a preliminary approach is proposed for the prediction of the crack width for this type of reinforced concrete elements
id RCAP_2833807b1db4b268aad5827df9f74e43
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/71743
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systemsB. Mechanical propertiesB. Transverse crackingC. Analytical modellingMechanical testingMechanical propertiesTransverse crackingAnalytical modellingD. Mechanical testingEngenharia e Tecnologia::Engenharia CivilScience & TechnologyBeing immune to corrosion, and having a tensile strength up to three times higher than structural steel, glass fiber reinforced polymer (GFRP) bars are suitable for reinforcing concrete structures exposed to aggressive environmental conditions. However, a relatively low elasticity modulus of GFRP bars (in respect to the steel) favors the occurrence of relatively large deformability of cracked reinforced concrete. Lack of ductility and degradation of properties under high temperature can be also identified as debilities of GFRP bars over steel ones. Combining GFRP and steel bars can be a suitable solution to overcoming these concerns. Nevertheless, the application of such hybrid reinforcement systems requires reliable material models. The influence of the relative area of GFRP and steel bars on the tensile capacity of cracked concrete (generally known as tension-stiffening effect), was never investigated from the experimental point of view, mainly crossing results from different tools on the assessment of the cracking process. This paper experimentally investigates deformations and cracking behavior of concrete prisms reinforced with steel bars and GFRP bars in different combinations. The test results of 11 elements are reported. A tensile stress-strain diagram is conceptually proposed for modelling the tension-stiffening effect in elements with such hybrid combination of the reinforcement. The cracking process in terms of crack width and crack spacing is analyzed considering the hybrid reinforcement particularities and a preliminary approach is proposed for the prediction of the crack width for this type of reinforced concrete elementsResearch Council of Lithuania (Research Project S-MIP-17-62). The second author also 590 wish to acknowledge the support provided by FCT through the PTDC/ECM591 EST/1882/2014 projectElsevierUniversidade do MinhoRimkus, ArvydasBarros, Joaquim A. O.Gribniak, ViktorRezazadeh, Mohammadali2019-072019-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/71743engRimkus, A., Barros, J. A., Gribniak, V., & Rezazadeh, M. (2019). Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems. Composite Structures, 220, 273-2880263-822310.1016/j.compstruct.2019.03.088https://www.sciencedirect.com/science/article/pii/S0263822318337413info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:19:05Zoai:repositorium.sdum.uminho.pt:1822/71743Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:11:59.931299Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
title Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
spellingShingle Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
Rimkus, Arvydas
B. Mechanical properties
B. Transverse cracking
C. Analytical modelling
Mechanical testing
Mechanical properties
Transverse cracking
Analytical modelling
D. Mechanical testing
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
title_short Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
title_full Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
title_fullStr Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
title_full_unstemmed Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
title_sort Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
author Rimkus, Arvydas
author_facet Rimkus, Arvydas
Barros, Joaquim A. O.
Gribniak, Viktor
Rezazadeh, Mohammadali
author_role author
author2 Barros, Joaquim A. O.
Gribniak, Viktor
Rezazadeh, Mohammadali
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Rimkus, Arvydas
Barros, Joaquim A. O.
Gribniak, Viktor
Rezazadeh, Mohammadali
dc.subject.por.fl_str_mv B. Mechanical properties
B. Transverse cracking
C. Analytical modelling
Mechanical testing
Mechanical properties
Transverse cracking
Analytical modelling
D. Mechanical testing
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
topic B. Mechanical properties
B. Transverse cracking
C. Analytical modelling
Mechanical testing
Mechanical properties
Transverse cracking
Analytical modelling
D. Mechanical testing
Engenharia e Tecnologia::Engenharia Civil
Science & Technology
description Being immune to corrosion, and having a tensile strength up to three times higher than structural steel, glass fiber reinforced polymer (GFRP) bars are suitable for reinforcing concrete structures exposed to aggressive environmental conditions. However, a relatively low elasticity modulus of GFRP bars (in respect to the steel) favors the occurrence of relatively large deformability of cracked reinforced concrete. Lack of ductility and degradation of properties under high temperature can be also identified as debilities of GFRP bars over steel ones. Combining GFRP and steel bars can be a suitable solution to overcoming these concerns. Nevertheless, the application of such hybrid reinforcement systems requires reliable material models. The influence of the relative area of GFRP and steel bars on the tensile capacity of cracked concrete (generally known as tension-stiffening effect), was never investigated from the experimental point of view, mainly crossing results from different tools on the assessment of the cracking process. This paper experimentally investigates deformations and cracking behavior of concrete prisms reinforced with steel bars and GFRP bars in different combinations. The test results of 11 elements are reported. A tensile stress-strain diagram is conceptually proposed for modelling the tension-stiffening effect in elements with such hybrid combination of the reinforcement. The cracking process in terms of crack width and crack spacing is analyzed considering the hybrid reinforcement particularities and a preliminary approach is proposed for the prediction of the crack width for this type of reinforced concrete elements
publishDate 2019
dc.date.none.fl_str_mv 2019-07
2019-07-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/71743
url http://hdl.handle.net/1822/71743
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Rimkus, A., Barros, J. A., Gribniak, V., & Rezazadeh, M. (2019). Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems. Composite Structures, 220, 273-288
0263-8223
10.1016/j.compstruct.2019.03.088
https://www.sciencedirect.com/science/article/pii/S0263822318337413
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799132552985837568

Registros relacionados