Mechanical behavior of concrete prisms reinforced with steel and GFRP bar systems
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
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 |
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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 |
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1799132552985837568 |