Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80941
DC FieldValueLanguage
dc.contributorDepartment of Civil and Environmental Engineering-
dc.creatorLin, G-
dc.creatorTeng, JG-
dc.date.accessioned2019-06-27T07:41:20Z-
dc.date.available2019-06-27T07:41:20Z-
dc.identifier.issn1090-0268-
dc.identifier.urihttp://hdl.handle.net/10397/80941-
dc.language.isoenen_US
dc.publisherAmerican Society of Civil Engineersen_US
dc.subjectColumnen_US
dc.subjectConcreteen_US
dc.subjectConfinementen_US
dc.subjectEccentric loadingen_US
dc.subjectFiber-reinforced polymers (FRP)en_US
dc.subjectFinite element analysisen_US
dc.subjectStress-strain modelen_US
dc.titleStress-strain model for FRP-confined concrete in eccentrically loaded circular columnsen_US
dc.typeJournal/Magazine Articleen_US
dc.identifier.doi10.1061/(ASCE)CC.1943-5614.0000946-
dcterms.abstractExtensive research has been conducted on FRP (fiber-reinforced polymers)-confined concrete columns under concentric compression, leading to many stress-strain models for such concrete. These concentric-loading (CL) stress-strain models have generally been used in the analysis of both concentrically and eccentrically loaded columns. Existing tests, however, have shown that eccentrically loaded FRP-confined concrete columns exhibit some behavioral aspects that cannot be closely predicted using a CL stress-strain model. This paper presents an in-depth investigation into this problem using an advanced three-dimensional (3D) finite element (FE) approach. The stress-strain response of concrete is shown to vary significantly over the section, and the direct use of a single CL stress-strain model for the entire section in the analysis of eccentrically loaded columns may lead to significant errors in the prediction of ultimate displacement/curvature. A stress-strain model for the confined concrete at the extreme compression fiber of the section is also shown to provide a relatively simple and much more accurate option for predicting the ultimate displacement/curvature of eccentrically loaded columns. Based on this conclusion, a so-called eccentricity-dependent (EccD) stress-strain model is proposed based on a comprehensive parametric study using the FE approach. The proposed model can be directly used in a section analysis or a theoretical column model and is proven to provide much more accurate predictions of the ultimate displacement/curvature of test columns than existing CL stress-strain models.-
dcterms.bibliographicCitationJournal of composites for construction, 2019, v. 23, no. 3, 4019017-
dcterms.isPartOfJournal of composites for construction-
dcterms.issued2019-
dc.identifier.scopus2-s2.0-85063676826-
dc.identifier.eissn1943-5614-
dc.description.validate201906 bcrc-
dc.description.oaNot applicable-
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