Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/81135
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dc.contributorDepartment of Civil and Environmental Engineering-
dc.creatorJiang, Y-
dc.creatorSilva, A-
dc.creatorMacedo, L-
dc.creatorCastro, JM-
dc.creatorMonteiro, R-
dc.creatorChan, TM-
dc.date.accessioned2019-07-29T03:18:07Z-
dc.date.available2019-07-29T03:18:07Z-
dc.identifier.urihttp://hdl.handle.net/10397/81135-
dc.language.isoenen_US
dc.publisherUniversity of Politecnica Valenciaen_US
dc.rights2018, Universitat Politècnica de València, CC BY-NC-ND. This work is licensed under a Creative Commons License Attribution-NonComercial-NoDerivatives 4.0 International (https://creativecommons.org/licenses/by-nc-nd/4.0/).en_US
dc.rightsThe following publication Jiang, Y., Silva, A., Macedo, L., Castro, J. M., Monteiro, R., … & Chan, T. M. (2018, June). Simplified modelling of circular CFST members with a concentrated plasticity approach. In Proceedings of the 12th International Conference on Advances in Steel-Concrete Composite Structures. ASCCS 2018 (pp. 693-700). Editorial Universitat Politècnica de València is available at https://dx.doi.org/10.4995/ASCCS2018.2018.7162en_US
dc.subjectConcrete-filled steel tubeen_US
dc.subjectConcentrated plasticity modelen_US
dc.subjectSeismic performanceen_US
dc.subjectOpenSeesen_US
dc.titleSimplified modelling of circular CFST members with a concentrated plasticity approachen_US
dc.typeConference Paperen_US
dc.identifier.spage693-
dc.identifier.epage700-
dc.identifier.doi10.4995/ASCCS2018.2018.7162-
dcterms.abstractThe research reported herein aims at proposing an accurate and efficient simplified numerical modelling approach for circular Concrete-Filled Steel Tubular ( CFST) columns under flexural loading. Experimental tests were carried out to characterize the monotonic and cyclic behaviour of CFST members under bending. To assess the seismic performance of a composite structure with CFST members, both Distributed Plasticity ( DP) and Concentrated Plasticity ( CP) models were considered. The DP model was developed on the basis of a fibre discretization of the composite cross-section and displacement-based beam-column finite element. It was concluded that one could not accurately capture the development of local buckling of the steel tube and the development of multi-axial stress state effects ( e.g. concrete confinement). Regarding the CP model, the modified Ibarra-Medina-Krawinkler deterioration model ( with peak-oriented hysteretic response) was selected to simulate the nonlinear behaviour of the plastic hinge region of a CFST member. In order to accurately simulate the cyclic behaviour of the CFST section within the response of the spring, the deterioration model was calibrated, within a parameter-optimization framework, on the basis of 3D comprehensive numerical models in ABAQUS. The CP model was found to capture well the deterioration in both strength and stiffness of the hysteretic loops of the CFST members, which legfely results from the development of local buckling effects of the steel tube. Furthermore, the elastic stiffness, the ultimate strength and the pinching effects of the hysteretic loops were also well simulated. The proposed CP model, coupled with the advanced calibration framework, results in a high level of accuracy in terms of simulating the cyclic flexural response of composite structures made with CFST members.-
dcterms.accessRightsopen accessen_US
dcterms.bibliographicCitationProceedings of the 12th International Conference on Advances in Steel-Concrete Composite Structures (ASCCS 2018), Jun 27-29, 2018, University of Politecnica Valencia, Valencia, Spain 2018, p. 693-700-
dcterms.issued2018-
dc.identifier.isiWOS:000471004000089-
dc.relation.conferenceInternational Conference on Advances in Steel-Concrete Composite Structures [ASCCS]-
dc.description.validate201907 bcrc-
dc.description.oaVersion of Recorden_US
dc.identifier.FolderNumberOA_Scopus/WOSen_US
dc.description.pubStatusPublisheden_US
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