Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression
Autor(a) principal: | |
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Data de Publicação: | 2018 |
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/1822/58391 |
Resumo: | The main goal of the study herein described was to evaluate the performance of an innovative confining unidirectional hybrid FRP solution for circular concrete columns, exploiting the hybrid effect and pseudo-ductility of FRP jackets made of different fibres. First, an experimental study on the compressive stress-strain curves of small-scale plain circular concrete columns confined with hybrid FRP was conducted. Jackets were produced with dry unidirectional fabrics of high-modulus carbon, standard-modulus carbon, E-glass, and basalt. Different combinations were tested, varying the number of layers of each material. Next, two new simple design-oriented models were developed in order to predict the compressive peak stress of compressed concrete columns confined with hybrid FRP jacketing. Predictions were in close agreement with test results. Finally, an existing analysis-oriented model developed for non-hybrid FRP-confined concrete was adapted to also predict dilation and the compressive stress-strain curve of hybrid FRP-confined concrete. Likewise, predictions were in close agreement with test results. It was concluded that hybridisation can effectively contribute to maximize the lateral strain efficiency of FRP jacketing and its behaviour can be predicted with the developed analytical models. |
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Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compressionHybrid FRP jacketingConcrete confinementCircular concrete columnsEngenharia e Tecnologia::Engenharia CivilScience & TechnologyThe main goal of the study herein described was to evaluate the performance of an innovative confining unidirectional hybrid FRP solution for circular concrete columns, exploiting the hybrid effect and pseudo-ductility of FRP jackets made of different fibres. First, an experimental study on the compressive stress-strain curves of small-scale plain circular concrete columns confined with hybrid FRP was conducted. Jackets were produced with dry unidirectional fabrics of high-modulus carbon, standard-modulus carbon, E-glass, and basalt. Different combinations were tested, varying the number of layers of each material. Next, two new simple design-oriented models were developed in order to predict the compressive peak stress of compressed concrete columns confined with hybrid FRP jacketing. Predictions were in close agreement with test results. Finally, an existing analysis-oriented model developed for non-hybrid FRP-confined concrete was adapted to also predict dilation and the compressive stress-strain curve of hybrid FRP-confined concrete. Likewise, predictions were in close agreement with test results. It was concluded that hybridisation can effectively contribute to maximize the lateral strain efficiency of FRP jacketing and its behaviour can be predicted with the developed analytical models.PTDC/ECM-EST/1282/2014; POCI-01-0145-FEDER-007633; FCT – Portuguese Foundation for Science and Technology and to the Doctoral Program Eco-Construction and Rehabilitation for supporting the PhD grant (PD/BD/52660/2014). Acknowledgements are extended to the following programs that partially supported the study herein presented: European Funds for Regional Development (FEDER) through the Operational Program for Competitiveness Factors (COMPETE), Operational Program for Competitiveness and Internationalization (POCI), and again FCT through both FRPLongDur POCI-01-0145-FEDER-016900 (FCT reference PTDC/ECM-EST/1282/2014) and POCI-01-0145-FEDER-007633 projectsinfo:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoRibeiro, Filipe Jorge TeixeiraSena-Cruz, JoséBranco, FernandoJúlio, Eduardo2018-092018-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/58391engRibeiro, F., Sena-Cruz, J., Branco, F. G., & Júlio, E. (2018). Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression. Construction and Building Materials, 184, 681-7040950-06181879-052610.1016/j.conbuildmat.2018.06.229https://www.sciencedirect.com/science/article/pii/S0950061818316428info: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:RCAAP2023-07-21T12:23:23Zoai:repositorium.sdum.uminho.pt:1822/58391Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:17:06.135062Repositório 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 |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
title |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
spellingShingle |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression Ribeiro, Filipe Jorge Teixeira Hybrid FRP jacketing Concrete confinement Circular concrete columns Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
title_full |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
title_fullStr |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
title_full_unstemmed |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
title_sort |
Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression |
author |
Ribeiro, Filipe Jorge Teixeira |
author_facet |
Ribeiro, Filipe Jorge Teixeira Sena-Cruz, José Branco, Fernando Júlio, Eduardo |
author_role |
author |
author2 |
Sena-Cruz, José Branco, Fernando Júlio, Eduardo |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ribeiro, Filipe Jorge Teixeira Sena-Cruz, José Branco, Fernando Júlio, Eduardo |
dc.subject.por.fl_str_mv |
Hybrid FRP jacketing Concrete confinement Circular concrete columns Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Hybrid FRP jacketing Concrete confinement Circular concrete columns Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
The main goal of the study herein described was to evaluate the performance of an innovative confining unidirectional hybrid FRP solution for circular concrete columns, exploiting the hybrid effect and pseudo-ductility of FRP jackets made of different fibres. First, an experimental study on the compressive stress-strain curves of small-scale plain circular concrete columns confined with hybrid FRP was conducted. Jackets were produced with dry unidirectional fabrics of high-modulus carbon, standard-modulus carbon, E-glass, and basalt. Different combinations were tested, varying the number of layers of each material. Next, two new simple design-oriented models were developed in order to predict the compressive peak stress of compressed concrete columns confined with hybrid FRP jacketing. Predictions were in close agreement with test results. Finally, an existing analysis-oriented model developed for non-hybrid FRP-confined concrete was adapted to also predict dilation and the compressive stress-strain curve of hybrid FRP-confined concrete. Likewise, predictions were in close agreement with test results. It was concluded that hybridisation can effectively contribute to maximize the lateral strain efficiency of FRP jacketing and its behaviour can be predicted with the developed analytical models. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-09 2018-09-01T00:00:00Z |
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/1822/58391 |
url |
http://hdl.handle.net/1822/58391 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ribeiro, F., Sena-Cruz, J., Branco, F. G., & Júlio, E. (2018). Hybrid FRP jacketing for enhanced confinement of circular concrete columns in compression. Construction and Building Materials, 184, 681-704 0950-0618 1879-0526 10.1016/j.conbuildmat.2018.06.229 https://www.sciencedirect.com/science/article/pii/S0950061818316428 |
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 |
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1799132622768570368 |