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dc.contributor.authorHassanein, Mostafa Fahmi
dc.contributor.authorPatel, Vipul Ishvarbhai
dc.contributor.authorBock, Marina
dc.date.accessioned2017-11-28T13:58:57Z
dc.date.available2017-11-28T13:58:57Z
dc.date.issued2017-11-03
dc.identifier.citationHassanein, MF., Patel, VI., Bock, M. (2017) 'Behaviour and design of hexagonal concrete-filled steel tubular short columns under axial compression', Engineering Structures, 15 (15) pp. 732-748
dc.identifier.issn0141-0296
dc.identifier.doi10.1016/j.engstruct.2017.10.010
dc.identifier.urihttp://hdl.handle.net/2436/620906
dc.description.abstractConcrete-filled steel tubular (CFST) columns have frequently been utilised in the construction of mid-rise and high-rise buildings as they offer smaller cross-sectional size to load carrying capacity ratio than ordinary reinforced concrete or steel solutions. The steel tube component of CFST columns can be shaped into different forms to further increase its strength and this article focuses on hexagonal CFST short columns in compression. Firstly, the literature is revised and it was found that the available experiments on the hexagonal columns cover relatively limited hexagonal dimensions and material properties. Additionally, existing design models were observed to be inaccurate for certain diameter-to-thickness (D/t) ratios of the columns. Accordingly, this paper intends to widen the available pool of data and proposes a new design model to design hexagonal CFST short columns in compression. This is made herein through comprehensive finite element (FE) models by using Abaqus software, carefully validated against experimental results and subsequent parametric studies covering a wide range of hexagonal dimensions of regular cross-section (circular-like). The effect of various D/t ratios, material steel grades and concrete compressive strengths (fc′) on both the behaviour and strength of the hexagonal CFST short columns is investigated. Based on observations made and conclusions drawn upon analysing numerical data generated, a new design model is presented which provides better strengths compared with available design models and with accurate predictions for the full range of D/t ratios.
dc.language.isoen
dc.publisherElsevier
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0141029616317102
dc.subjectConcrete-filled steel tubular columns
dc.subjectHexagonal section
dc.subjectAxial compressive strength
dc.subjectFinite element analysis
dc.subjectStub columns
dc.subjectDesign model
dc.titleBehaviour and design of hexagonal concrete-filled steel tubular short columns under axial compression
dc.typeJournal article
dc.identifier.journalEngineering Structures
dc.date.accepted2017-10-04
rioxxterms.funderUniversity of Wolverhampton
rioxxterms.identifier.projectUoW281117MB
rioxxterms.versionAM
rioxxterms.licenseref.urihttps://creativecommons.org/CC BY-NC-ND 4.0
rioxxterms.licenseref.startdate2018-11-03
dc.source.volume153
dc.source.beginpage732
dc.source.endpage748
refterms.dateFCD2018-10-19T09:28:38Z
refterms.versionFCDAM
refterms.dateFOA2018-12-15T00:00:00Z
html.description.abstractConcrete-filled steel tubular (CFST) columns have frequently been utilised in the construction of mid-rise and high-rise buildings as they offer smaller cross-sectional size to load carrying capacity ratio than ordinary reinforced concrete or steel solutions. The steel tube component of CFST columns can be shaped into different forms to further increase its strength and this article focuses on hexagonal CFST short columns in compression. Firstly, the literature is revised and it was found that the available experiments on the hexagonal columns cover relatively limited hexagonal dimensions and material properties. Additionally, existing design models were observed to be inaccurate for certain diameter-to-thickness (D/t) ratios of the columns. Accordingly, this paper intends to widen the available pool of data and proposes a new design model to design hexagonal CFST short columns in compression. This is made herein through comprehensive finite element (FE) models by using Abaqus software, carefully validated against experimental results and subsequent parametric studies covering a wide range of hexagonal dimensions of regular cross-section (circular-like). The effect of various D/t ratios, material steel grades and concrete compressive strengths (fc′) on both the behaviour and strength of the hexagonal CFST short columns is investigated. Based on observations made and conclusions drawn upon analysing numerical data generated, a new design model is presented which provides better strengths compared with available design models and with accurate predictions for the full range of D/t ratios.


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