Characterization of energy dissipative cushions made of Ni-Ti shape memory alloy

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dc.authoridGÜLLÜ, AHMET/0000-0001-6678-9372
dc.authoridDilibal, Savas/0000-0003-4777-7995
dc.authorwosidGÜLLÜ, AHMET/AAF-2358-2020
dc.authorwosidDilibal, Savas/Q-3748-2017
dc.contributor.authorGullu, Ahmet
dc.contributor.authorDanquah, Josiah Owusu
dc.contributor.authorDilibal, Savas
dc.date.accessioned2024-06-13T20:18:14Z
dc.date.available2024-06-13T20:18:14Z
dc.date.issued2022
dc.departmentİstanbul Gedik Üniversitesi
dc.description.abstractEarthquake-resistant design of structures requires dissipating seismic energy by deformations of structural members or additional fuse elements. Owing to its easy-to-produce, plug-and-play, high equivalent damping ratio, and large displacement capacity characteristics, energy dissipative steel cushions (SCs) were found to be an efficient candidate for this purpose. However, similar to other conventional metallic dampers, residual displacement after a strong shaking is the most notable drawback of the SCs. In this work, cushions produced from Ni-Ti shape memory alloy (SMA) are evaluated numerically by experimentally verified finite element models to assess their impact on the performance of earthquake-resistant structures. Furthermore, a reinforced concrete testing frame is retrofitted with energy dissipative steel and Ni-Ti cushions. Performance of the frames (e.g. dissipated energy by the cushions, hysteretic energy to input energy ratio, maximum drift, and residual drift) with different types of cushions are evaluated by nonlinear response history analyses. The numerical results showed that the SCs are effective to reduce peak responses, while Ni-Ti cushions are more favorable to reduce residual drifts and deformations. Hence, a hybrid system, employing the steel and SMA cushions together, is proposed to reach optimal seismic performance.
dc.identifier.doi10.1088/1361-665X/ac383d
dc.identifier.issn0964-1726
dc.identifier.issn1361-665X
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85122504770
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1088/1361-665X/ac383d
dc.identifier.urihttps://hdl.handle.net/11501/1261
dc.identifier.volume31
dc.identifier.wosWOS:000722400300001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherIop Publishing Ltd
dc.relation.ispartofSmart Materials and Structures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectShape Memory Alloys
dc.subjectEnergy Dissipator
dc.subjectMetallic Damper
dc.subjectSteel Cushion
dc.subjectHysteretic Response
dc.subjectNonlinear Response History Analyses
dc.subjectBeam-Column Connections
dc.subjectConstitutive Model
dc.subjectBehavior
dc.subjectSteel
dc.subjectBridges
dc.subjectHysteresis
dc.subjectMechanism
dc.subjectActuation
dc.subjectDampers
dc.titleCharacterization of energy dissipative cushions made of Ni-Ti shape memory alloy
dc.typeArticle

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