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Assessing the effectiveness of embedding CFRP laminates in the near surface for structural strengthening

2006Journal article Open access
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dc.contributor.authorFerreira, Débora
dc.contributor.authorBarros, Joaquim
dc.contributor.authorFortes, Adriano S.
dc.contributor.authorDias, Salvador
dc.date.accessioned2009-02-10T18:10:33Z
dc.date.available2009-02-10T18:10:33Z
dc.date.issued2006
dc.description.abstractThe Near Surface Mounted (NSM) technique is a recent strengthening strategy, using Fiber Reinforced Polymer (CFRP) systems, that is being developed to increase the bending and the shear resistance of structural elements. To assess the effectiveness of the NSM technique, an experimental program is carried out involving reinforced concrete (RC) columns, RC beams and masonry panels. In columns failing in bending the present work shows that CFRP failure strain can be attained using the NSM technique. In this study, beams of distinct steel reinforcement ratio failing in bending are strengthened with CFRP laminate strips in order to double their load carrying capacity. This goal was attained and maximum strain levels of about 90% of the CFRP failure strain were recorded. The effectiveness of externally bonded reinforcing (EBR) and NMS techniques are compared by carrying out three-point-bending tests with masonry panels failing in bending. The NMS technique has provided a higher increase of the load carrying capacity, deflection at panel failure and more homogeneous behavior during panel deformability. Performance of both EBR and NMS techniques are also compared for strengthening RC beams failing in shear. NMS is shown to be much more effective, not only in terms of the increase of the load carrying capacity and deformability at beam failure, but also with respect to the time consuming nature of the corresponding strengthening procedures.en
dc.description.sponsorshipS&Pen
dc.description.sponsorshipBettor MBT Portugalen
dc.description.sponsorshipSecilen
dc.description.sponsorshipNordesferen
dc.description.sponsorshipFersequeen
dc.description.sponsorshipCasaisen
dc.description.sponsorshipVSLen
dc.description.sponsorshipSoluselen
dc.description.sponsorshipUnibetão (Braga)en
dc.description.sponsorshipcolaboration of Cemacom.en
dc.description.sponsorshipSFRH/BSAB/291/2002-POCTI, provided by FCT and FSE.en
dc.identifier.citationFerreira, Débora; Barros, Joaquim A. O.; Fortes, Adriano S.; Dias, Salvador J. E. (2006). Assessing the effectiveness of embedding CFRP laminates in the near surface for structural strengthening. Construction and Building Material. ISSN 0950-0618. 20:7 p.478-491en
dc.identifier.issn0950-0618en
dc.identifier.slugConstruction and Building Materialen
dc.identifier.urihttp://hdl.handle.net/10198/1043
dc.language.isoengen
dc.language.rfc3066engen
dc.number7en
dc.pagination478-491en
dc.peerreviewedyesen
dc.publisherElsevieren
dc.relation.publisherversionhttp://www.sciencedirect.com/science/journal/09500618en
dc.subjectCarbon fiber reinforced polymersen
dc.subjectConcreteen
dc.subjectStrengtheningen
dc.titleAssessing the effectiveness of embedding CFRP laminates in the near surface for structural strengtheningen
dc.typejournal article
dc.volume12en
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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