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https://hdl.handle.net/1822/88505
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Campo DC | Valor | Idioma |
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dc.contributor.author | Shayanfar, Javad | por |
dc.contributor.author | Barros, Joaquim A. O. | por |
dc.contributor.author | Rezazadeh, Mohammadali | por |
dc.date.accessioned | 2024-02-05T15:32:34Z | - |
dc.date.available | 2024-02-05T15:32:34Z | - |
dc.date.issued | 2023 | - |
dc.identifier.citation | Shayanfar, J., Barros, J. A. O., & Rezazadeh, M. (2023, August). Analytical model to predict axial stress-strain behavior of heat-damaged unreinforced concrete columns wrapped by FRP jacket. Engineering Structures. Elsevier BV. http://doi.org/10.1016/j.engstruct.2023.116244 | - |
dc.identifier.issn | 0141-0296 | por |
dc.identifier.uri | https://hdl.handle.net/1822/88505 | - |
dc.description.abstract | Although there are several confinement models to obtain analytically the axial stress-strain response (fc − εc) of concrete columns wrapped with fiber-reinforced-polymer (FRP) jacket at ambient conditions, a reliable designoriented model to determine the fc − εc of heat-damaged concrete columns post-confined with FRP is still lacking in the literature. This study aims to address this research gap, by proposing a formulation that predicts the favourable effects of FRP confinement on concrete elements previously exposed to high temperatures. This model proposes a closed-form formulation to derive a fc − εc expression, including a set of strength and strain submodels to calculate the stress/strain information at transition and ultimate points defining the stress-strain response. To develop the model and calibrate its key components by data analysis of statistical treatment techniques, a large test database of FRP confined unheated/heat-damaged concrete of circular/square crosssection consisting of 1914 specimens was collected. The proposed design-oriented model is able to demonstrate the influence of pre-existing thermal damage on the axial fc − εc relationship, whose reliability is revealed comprehensively through predicting data from several experimental heat-damaged concrete specimens confined with FRP systems. | por |
dc.description.sponsorship | This study is a part of the project ‘‘Sticker –Innovative technique for the structural strengthening based on using CFRP laminates with multifunctional attributes and applied with advanced cement adhesives’’, with the reference POCI-01-0247-FEDER-039755. The first author also acknowledges the support provided by FCT PhD individual fellowship 2019 with the reference of “SFRH/BD/148002/2019”. | por |
dc.description.sponsorship | This study is a part of the project "Sticker - Innovative technique for the structural strengthening based on using CFRP laminates with multifunctional attributes and applied with advanced cement adhesives " , with the reference POCI-01-0247-FEDER-039755. The firs author also acknowledges the support provided by FCT PhD individual fellowship 2019 with the reference of " SFRH/BD/148002/2019 " . | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.relation | info:eu-repo/grantAgreement/FCT/POR_NORTE/SFRH%2FBD%2F148002%2F2019/PT | - |
dc.rights | openAccess | por |
dc.subject | FRP confinement | por |
dc.subject | Heat-damaged concrete | por |
dc.subject | Axial behavior | por |
dc.subject | Stress-strain model | por |
dc.subject | RC columns | por |
dc.subject | Steel confinement | por |
dc.subject | Dilation model | por |
dc.title | Analytical model to predict axial stress-strain behavior of heat-damaged unreinforced concrete columns wrapped by FRP jacket | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | https://www.sciencedirect.com/science/article/pii/S0141029623006594 | por |
oaire.citationVolume | 289 | por |
dc.identifier.eissn | 1873-7323 | por |
dc.identifier.doi | 10.1016/j.engstruct.2023.116244 | por |
dc.subject.fos | Engenharia e Tecnologia::Engenharia Civil | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Engineering Structures | por |
oaire.version | VoR | por |
dc.identifier.articlenumber | 116244 | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Analytical model to predict axial stress-strain behavior of heat-damaged unreinforced concrete columns wrapped by FRP jacket.pdf | 2,31 MB | Adobe PDF | Ver/Abrir |