Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders
Main Author: | |
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Publication Date: | 2008 |
Other Authors: | |
Format: | Article |
Language: | eng |
Source: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Download full: | http://hdl.handle.net/10198/1025 |
Summary: | Concrete columns requiring strengthening intervention always contain a certain percentage of steel hoops. Applying strips of wet lay-up carbon fiber reinforced polymer (CFRP) sheets in-between the existent steel hoops might, therefore, be an appropriate confinement technique with both technical and economic advantages, when full wrapping of a concrete column is taken as a basis of comparison. To assess the effectiveness of this discrete confinement strategy, circular cross section concrete elements confined by distinct arrangements of strips of CFRP sheet are submitted to a direct compression load up to the failure point. The influence of the width of the strip, distance between strips, number of CFRP layers per strip, CFRP stiffness and concrete strength class on the increase of the load carrying capacity and ductility of concrete columns, is evaluated. An analytical model is developed to predict the compressive stress-strain relationship of concrete columns confined by discrete and continuous CFRP arrangements. The main results of the experimental program are presented and analyzed and used to assess the model performance |
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Assessing the efficiency of CFRP discrete confinement systems for concrete cylindersCarbon fiber reinforced polymersConfinementConcreteColumnsConfinement modelConcrete columns requiring strengthening intervention always contain a certain percentage of steel hoops. Applying strips of wet lay-up carbon fiber reinforced polymer (CFRP) sheets in-between the existent steel hoops might, therefore, be an appropriate confinement technique with both technical and economic advantages, when full wrapping of a concrete column is taken as a basis of comparison. To assess the effectiveness of this discrete confinement strategy, circular cross section concrete elements confined by distinct arrangements of strips of CFRP sheet are submitted to a direct compression load up to the failure point. The influence of the width of the strip, distance between strips, number of CFRP layers per strip, CFRP stiffness and concrete strength class on the increase of the load carrying capacity and ductility of concrete columns, is evaluated. An analytical model is developed to predict the compressive stress-strain relationship of concrete columns confined by discrete and continuous CFRP arrangements. The main results of the experimental program are presented and analyzed and used to assess the model performanceS&P Clever ReinforcementMBT Bettor PortugalPRODEP action 5.3/N/199.014/01ASCE PublicationsBiblioteca Digital do IPBBarros, JoaquimFerreira, Débora2009-02-05T09:53:42Z20082008-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10198/1025engengBarros, Joaquim A. O.; Ferreira, Débora (2008). Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders. Journal of Composites for Construction. ISSN 1090-0268. 12:2 p.134-1481090-0268Journal of Composites for Constructioninfo: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:RCAAP2023-11-21T10:04:17Zoai:bibliotecadigital.ipb.pt:10198/1025Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:54:37.711923Repositório 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 |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
title |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
spellingShingle |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders Barros, Joaquim Carbon fiber reinforced polymers Confinement Concrete Columns Confinement model |
title_short |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
title_full |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
title_fullStr |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
title_full_unstemmed |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
title_sort |
Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders |
author |
Barros, Joaquim |
author_facet |
Barros, Joaquim Ferreira, Débora |
author_role |
author |
author2 |
Ferreira, Débora |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Biblioteca Digital do IPB |
dc.contributor.author.fl_str_mv |
Barros, Joaquim Ferreira, Débora |
dc.subject.por.fl_str_mv |
Carbon fiber reinforced polymers Confinement Concrete Columns Confinement model |
topic |
Carbon fiber reinforced polymers Confinement Concrete Columns Confinement model |
description |
Concrete columns requiring strengthening intervention always contain a certain percentage of steel hoops. Applying strips of wet lay-up carbon fiber reinforced polymer (CFRP) sheets in-between the existent steel hoops might, therefore, be an appropriate confinement technique with both technical and economic advantages, when full wrapping of a concrete column is taken as a basis of comparison. To assess the effectiveness of this discrete confinement strategy, circular cross section concrete elements confined by distinct arrangements of strips of CFRP sheet are submitted to a direct compression load up to the failure point. The influence of the width of the strip, distance between strips, number of CFRP layers per strip, CFRP stiffness and concrete strength class on the increase of the load carrying capacity and ductility of concrete columns, is evaluated. An analytical model is developed to predict the compressive stress-strain relationship of concrete columns confined by discrete and continuous CFRP arrangements. The main results of the experimental program are presented and analyzed and used to assess the model performance |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008 2008-01-01T00:00:00Z 2009-02-05T09:53:42Z |
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/10198/1025 |
url |
http://hdl.handle.net/10198/1025 |
dc.language.iso.fl_str_mv |
eng eng |
language |
eng |
dc.relation.none.fl_str_mv |
Barros, Joaquim A. O.; Ferreira, Débora (2008). Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders. Journal of Composites for Construction. ISSN 1090-0268. 12:2 p.134-148 1090-0268 Journal of Composites for Construction |
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 |
ASCE Publications |
publisher.none.fl_str_mv |
ASCE Publications |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799135145783984128 |