Evaluation of seismic response factors for BRBFs using FEMA P695 methodology

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dc.contributor.authorOzkilic, Yasin Onuraip
dc.contributor.authorBozkurt, Mehmet Bakir
dc.contributor.authorTopkaya, Cem
dc.date.accessioned2024-02-23T14:12:40Z
dc.date.available2024-02-23T14:12:40Z
dc.date.issued2018
dc.departmentNEÜen_US
dc.description.abstractThis paper reports the details of a numerical study undertaken to evaluate seismic response factors for steel buckling-restrained braced frames (BRBFs) using the FEMA P695 methodology. In the United States, BRBFs are designed according to Minimum Design Loads for Buildings and Other Structures (ASCE 7) and the Seismic Provisions for Structural Steel Buildings (AISC 341). Twenty-four archetypes were designed according to the U.S. specifications and their behavior was assessed by making use of non-simulated collapse models. The interstory drift, brace axial strain and cumulative brace axial strain demands under collapse level ground motions were determined. The results obtained indicate that the current seismic response factors are adequate in terms of interstory drift and cumulative axial strain demands. On the other hand, large differences between the design level and collapse level axial strains were reported, which can result in undesirable brace behavior. Modified approaches were developed to estimate the axial strains for collapse level ground motions. These indude a modification to the deflection amplification factor and a modification to the AISC 341 requirements for expected brace deformations. The archetypes were redesigned using the proposed modifications and reevaluated using the FEMA P695 methodology. The results indicate that the proposed modifications result in axial strain demands that are in close agreement with the calculated demands. (C) 2018 Elsevier Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/j.jcsr.2018.09.015
dc.identifier.endpage57en_US
dc.identifier.issn0143-974X
dc.identifier.issn1873-5983
dc.identifier.scopus2-s2.0-85053760801en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage41en_US
dc.identifier.urihttps://doi.org/10.1016/j.jcsr.2018.09.015
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12146
dc.identifier.volume151en_US
dc.identifier.wosWOS:000452574000004en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofJournal Of Constructional Steel Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBuckling-Restrained Braceen_US
dc.subjectStructural Framesen_US
dc.subjectSteelen_US
dc.subjectSeismicen_US
dc.subjectResponse Factoren_US
dc.subjectYieldingen_US
dc.titleEvaluation of seismic response factors for BRBFs using FEMA P695 methodologyen_US
dc.typeArticleen_US

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