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Assessing the efficiency of CFRP discrete confinement systems for concrete cylinders

2008Journal article Open access
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dc.contributor.authorBarros, Joaquim
dc.contributor.authorFerreira, Débora
dc.date.accessioned2009-02-05T09:53:42Z
dc.date.available2009-02-05T09:53:42Z
dc.date.issued2008
dc.description.abstractConcrete 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 performanceen
dc.description.sponsorshipS&P Clever Reinforcementen
dc.description.sponsorshipMBT Bettor Portugalen
dc.description.sponsorshipPRODEP action 5.3/N/199.014/01en
dc.identifier.citationBarros, 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.134-148en
dc.identifier.issn1090-0268en
dc.identifier.slugJournal of Composites for Constructionen
dc.identifier.urihttp://hdl.handle.net/10198/1025
dc.language.isoengen
dc.language.rfc3066engen
dc.number2en
dc.pagination134-148en
dc.peerreviewedyesen
dc.publisherASCE Publicationsen
dc.relation.publisherversionhttp://cedb.asce.org/cgi/WWWdisplay.cgi?0802609en
dc.subjectCarbon fiber reinforced polymersen
dc.subjectConfinementen
dc.subjectConcreteen
dc.subjectColumnsen
dc.subjectConfinement modelen
dc.titleAssessing the efficiency of CFRP discrete confinement systems for concrete cylindersen
dc.typejournal article
dc.volumeVolume 12en
dspace.entity.typePublication
person.familyNameFerreira
person.givenNameDébora
person.identifier.ciencia-idD81C-FDAD-4D8A
person.identifier.orcid0000-0002-5195-8265
person.identifier.scopus-author-id35334023200
rcaap.rightsopenAccessen
rcaap.typearticleen
relation.isAuthorOfPublicationa4fa2eb4-17f1-46a1-ae8e-36f39ad25b39
relation.isAuthorOfPublication.latestForDiscoverya4fa2eb4-17f1-46a1-ae8e-36f39ad25b39

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