Seismic Performance of Precast Post-Tensioned Segmental Bridge Piers with Shape Memory Alloy (SMA) Bars

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dc.contributor.authorKocakaplan Sezgin, Sedef
dc.contributor.authorAhmadi, Ehsan
dc.contributor.authorMehdi Kashani, Mohammad Mehdi
dc.date.accessioned2026-02-12T21:02:48Z
dc.date.available2026-02-12T21:02:48Z
dc.date.issued2022
dc.departmentBursa Teknik Üniversitesi
dc.description12th National Conference on Earthquake Engineering, NCEE 2022 -- 2022-06-27 through 2022-07-01 -- Salt Lake City -- 182374
dc.description.abstractIn recent years, accelerated bridge construction (ABC) has led to substantial application of precast posttensioned segmental (PPS) bridge piers in bridge construction. However, PPS piers are not to be used in high-seismicity regions due to their low-energy dissipating capacity. To address this deficiency, this paper examines a segmental bridge pier with unbonded post-tensioned superelastic Shape Memory Alloy (SMA) bars through a Finite Element (FE) framework. The seismic performance of the PPS piers with SMA bars is investigated using far-field ground motions and incremental dynamic analysis (IDA). IDA curves of PPS piers are obtained for top drift and normalized base shear, and results are compared with the ones without SMA bars. It is seen that the PPS piers with SMA bars developed higher normalized base shear responses, which is mainly due to their higher stiffness compared to the ones without SMA. However, the PPS piers with SMA bars reduced the drift responses of the piers. © 2022 12th National Conference on Earthquake Engineering, NCEE 2022 All rights reserved.
dc.description.sponsorshipApplied Technology Council (ATC); Computers and Structures, Inc. (CSI); et al.; Federal Emergency Management Agency (FEMA); Forell/Elsesser Engineers Inc.; Kinemetrics
dc.identifier.scopus2-s2.0-85138480641
dc.identifier.scopusqualityN/A
dc.identifier.urihttps://hdl.handle.net/20.500.12885/6525
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherEarthquake Engineering Research Institute
dc.relation.ispartof12th National Conference on Earthquake Engineering, NCEE 2022
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanı
dc.snmzKA_Scopus_20260212
dc.subjectEarthquake engineering
dc.subjectEngineering geology
dc.subjectPiers
dc.subjectSeismology
dc.subjectShape-memory alloy
dc.subjectAccelerated bridge constructions
dc.subjectBase shear
dc.subjectBridge constructions
dc.subjectIncremental dynamic analysis
dc.subjectLower energies
dc.subjectPost tensioned
dc.subjectPre-cast
dc.subjectSegmental bridge
dc.subjectSeismic Performance
dc.subjectShape memory alloy bars
dc.subjectSeismic waves
dc.titleSeismic Performance of Precast Post-Tensioned Segmental Bridge Piers with Shape Memory Alloy (SMA) Bars
dc.typeConference Object

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