Stability of laterally unsupported shear links in eccentrically braced frames

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dc.contributor.authorOzkilic, Yasin Onuralp
dc.contributor.authorZeybek, Ozer
dc.contributor.authorTopkaya, Cem
dc.date.accessioned2024-02-23T12:11:09Z
dc.date.available2024-02-23T12:11:09Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractI-shaped links in eccentrically braced frames (EBFs) are susceptible to lateral or lateral torsional buckling when subjected to cyclic link rotations. Lateral bracing should be provided at the ends of the I-shaped links in order to prevent these failures. Requirements for such braces are available in widely used design specifications such as the AISC Seismic Provisions for Structural Steel Buildings (AISC341-16) and EC8. These requirements limit the use of I-shaped links in bridge piers and elevator shafts. A combined experimental and numerical study was undertaken to investigate the behavior of laterally unsupported I-shaped links under cyclic loading. The experimental study consisted of testing of six nearly full-scale EBFs where the link length, link length ratio, and presence of lateral supports were considered as the prime variables. The test results demonstrated that short links with link length ratios less than 1.22 can experience inelastic link rotations greater than the codified limit of 0.08 rad even without lateral bracing. A numerical parametric study was conducted to develop more generalized design recommendations for laterally unsupported I-shaped shear links. Stability of one-story one-bay EBFs was studied using geometrically and materially nonlinear finite element analysis including imperfections. The numerical results showed that I-shaped links without lateral bracing can provide a stable response when the link length ratio is less than 1.15. In addition to this limit, the ratio of the elastic critical buckling capacity to the plastic shear capacity should be greater than 3.5 and 2.5 for links with and without axial force, respectively.en_US
dc.description.sponsorshipScientific and Technological Council of Turkey [114M251]en_US
dc.description.sponsorshipScientific and Technological Council of Turkey, Grant/Award Number: 114M251en_US
dc.identifier.doi10.1002/eqe.3593
dc.identifier.endpage852en_US
dc.identifier.issn0098-8847
dc.identifier.issn1096-9845
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85121304557en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage832en_US
dc.identifier.urihttps://doi.org/10.1002/eqe.3593
dc.identifier.urihttps://hdl.handle.net/20.500.12452/10563
dc.identifier.volume51en_US
dc.identifier.wosWOS:000729849300001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofEarthquake Engineering & Structural Dynamicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEccentrically Braced Framesen_US
dc.subjectLateral Bracingen_US
dc.subjectLateral Torsional Bucklingen_US
dc.subjectSeismic Designen_US
dc.subjectShear Linksen_US
dc.subjectSteelen_US
dc.titleStability of laterally unsupported shear links in eccentrically braced framesen_US
dc.typeArticleen_US

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