Time-dependent behavior of NSM CFRP-strengthened RC beams under different service temperatures
dc.contributor.author
dc.date.accessioned
2022-09-14T06:57:37Z
dc.date.available
2022-09-14T06:57:37Z
dc.date.issued
2022-11-15
dc.identifier.issn
0263-8223
dc.identifier.uri
dc.description.abstract
The use of fiber reinforced polymer (FRP) for flexural strengthening of reinforced concrete (RC) beams has become a popular strengthening technique. Significant amount of work is available on the short-term flexural behavior of RC beams strengthened with near-surface mounted (NSM) technique. However, their time-dependent flexural behavior, specifically under high service temperature, has not yet been addressed. This paper presents an experimental work to evaluate the time-dependent behavior of NSM carbon FRP (CFRP)-strengthened RC beams. The experimental program included 23 beams, where the effect of different parameters such as strengthening (CFRP) area, steel reinforcement ratio and applied temperature (20 and 50 °C) have been considered. Experimental results show that the effect of strengthening area is significant on the flexural short-term response of the beams, while minor effects are found on the time-dependent deflections. On the other hand, increasing the service temperature has no significant effect on the short-term tests, but it produces a large increase in the time-dependent deflection of the specimens. Finally, an analytical procedure for the prediction of time-dependent deflections, which is based on the age-adjusted effective modulus method (AEMM), is presented. Good agreement between the experimental results and analytical predictions on time-dependent deflections is shown
dc.description.sponsorship
This research was supported by the Spanish Ministry of Science and Innovation (MCIN/ AEI) under project PID2020-119015GB-C22 and the Generalitat de Catalunya (under the grant numbers: 2019FI_B 00054 and 2020_FISDU 00476)
Open Access funding provided thanks to the CRUE-CSIC agreement with Elsevier
dc.format.mimetype
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
dc.relation.isformatof
Reproducció digital del document publicat a: https://doi.org/10.1016/j.compstruct.2022.116106
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Composite Structures, 2022, vol. 300, art.núm. 116106
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Articles publicats (D-EMCI)
dc.rights
Reconeixement 4.0 Internacional
dc.rights.uri
dc.source
Jahani, Younes Baena Muñoz, Marta Codina, Alba Barris Peña, Cristina Torres Llinàs, Lluís 2022 Time-dependent behavior of NSM CFRP-strengthened RC beams under different service temperatures Composite Structures 300 art.núm. 116106
dc.subject
dc.title
Time-dependent behavior of NSM CFRP-strengthened RC beams under different service temperatures
dc.type
info:eu-repo/semantics/article
dc.rights.accessRights
info:eu-repo/semantics/openAccess
dc.relation.projectID
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-119015GB-C22/ES/MEJORA DE LA EFICIENCIA DEL REFUERZO DE ESTRUCTURAS DE HORMIGON CON FRP. ANALISIS Y DISEÑO DE SISTEMAS DE ANCLAJE PARA EVITAR EL FALLO PREMATURO POR ADHERENCIA/
dc.type.version
info:eu-repo/semantics/publishedVersion
dc.identifier.doi
dc.identifier.idgrec
035597
dc.contributor.funder
dc.type.peerreviewed
peer-reviewed
dc.relation.FundingProgramme
dc.relation.ProjectAcronym
dc.identifier.eissn
1879-1085