A practical approach for modeling FRP wrapped concrete columns

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dc.authorid0000-0001-6703-7279en_US
dc.authorid0000-0003-0304-1097en_US
dc.authorid0000-0002-9489-5145
dc.contributor.authorKöksal, Hasan Orhun
dc.contributor.authorDoran, Bilge
dc.contributor.authorTurğay, Tahsin
dc.date.accessioned2021-06-23T19:26:21Z
dc.date.available2021-06-23T19:26:21Z
dc.date.issued2009
dc.departmentBAİBÜ, Mimarlık Fakültesi, Mimarlık Bölümüen_US
dc.description.abstractFiber reinforced polymers (FRP) have gained rapid popularity in recent years as one of the strengthening techniques of structural concrete elements. Particularly, increase in the use of FRP composite materials for strengthening and retrofitting of reinforced concrete columns has urged the development of several approaches to determine their compressive strength. Although substantial experimental and analytical researches have been conducted to model and simulate the response of concrete confined with FRP jackets under concentric loading. there is still an apparent need for the detail analyses and efficient numerical models to further understand the stress-strain behavior and failure mechanisms of the confined concrete. In order to predict the compressive behavior of concrete even under high confinement pressures, this paper introduces new relations for calculation of the cohesion parameter of Drucker-Prager criterion in terms of cylindrical compressive strength only. These relations are developed from a parametric study of a large number of nonlinear finite element analyses (NLFFEA) of FRP wrapped concrete columns to account for the axial load level and the shape of the stress-strain curve. Incorporating a realistic one-parameter failure criterion of concrete, the failure cone of Drucker-Prager model is enforced to approximate and coincide with the whole compressive meridian of the criterion up to the analytically predicted point of the ultimate hydrostatic pressure in the analyses. Based on this failure cone, mainly seven different relations corresponding to the various levels of lateral pressure are proposed for the compressive meridian and the cohesion while keeping the internal friction angle as a constant value of 33 degrees. The proposed approach is shown to fit quite well the experimental results of 42 specimens tested by eight different researchers, for various square and rectangular cross-sections under concentric loading. (C) 2008 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.conbuildmat.2008.07.008
dc.identifier.endpage1437en_US
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-57749188255en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1429en_US
dc.identifier.urihttps://doi.org/10.1016/j.conbuildmat.2008.07.008
dc.identifier.urihttps://hdl.handle.net/20.500.12491/6512
dc.identifier.volume23en_US
dc.identifier.wosWOS:000262773000031en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorTurğay, Tahsin
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofConstruction And Building Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectFiber Reinforced Polymeren_US
dc.subjectConcreteen_US
dc.subjectColumnen_US
dc.subjectDrucker-Prageren_US
dc.subjectPlasticityen_US
dc.subjectFinite Element Analysisen_US
dc.titleA practical approach for modeling FRP wrapped concrete columnsen_US
dc.typeArticleen_US

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