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Large-rupture-strain (LRS) FRP-confined concrete in square stub columns: effects of specimen size and assessments of existing models

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dc.contributor.authorZeng, J.J.
dc.contributor.authorZhu, D.H.
dc.contributor.authorLiao, J.
dc.contributor.authorZhuge, Y.
dc.contributor.authorBai, Y.L.
dc.contributor.authorZhang, L.
dc.date.issued2022
dc.description.abstractAs an environmental-friendly material with high rupture strain capacity, polyethylene terephthalate (PET) fiber reinforced polymer (FRP) has promising industry applications. Previous studies mainly focused on the application of PET FRP-confined concrete in circular columns, while investigations on PET FRP-confined concrete in square columns are rather limited. The purpose of this study is to fundamentally understand the confinement mechanism of PET FRP-confinede concrete in square stub columns by conducting axial compression tests. Particularly, the influences of confinement thickness, corner radius and specimen size were investigated. Test results reveal that the specimen size is not significant for small- and medium-sized stub columns with a similar confinement level. The minimum confinement stiffness ratio and modified confinement ratio for achieving a sufficient confinement are 0.0036 and 0.13 respectively. Additionally, assessments of existing confinement models for PET FRP-confined concrete are conducted.
dc.identifier.citationConstruction and Building Materials, 2022; 326(126869):1-18
dc.identifier.doi10.1016/j.conbuildmat.2022.126869
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.orcidZhuge, Y. [0000-0003-1620-6743]
dc.identifier.urihttps://hdl.handle.net/11541.2/27897
dc.language.isoen
dc.publisherElsevier
dc.relation.fundingNational Natural Science Foundation of China 51908137
dc.relation.fundingGuangzhou Science and Technology Department 201904010163
dc.relation.fundingNatural Science Foundation of Guangdong Province 2019A1515011637
dc.rightsCopyright 2022 Elsevier Access Condition Notes: Accepted manuscript available from 01 April 2024
dc.source.urihttps://doi.org/10.1016/j.conbuildmat.2022.126869
dc.subjectpolyethylene terephthalate (PET) FRP
dc.subjectaxial compression behavior
dc.subjectconfinement effectiveness
dc.subjectsquare stub columns
dc.subjectmodel evaluation
dc.titleLarge-rupture-strain (LRS) FRP-confined concrete in square stub columns: effects of specimen size and assessments of existing models
dc.typeJournal article
pubs.publication-statusPublished
ror.fileinfo12241504300001831 13241514040001831 Open Access Postprint
ror.mmsid9916619245701831

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