A procedure for matching the near-fault ground motions based on spectral accelerations and instantaneous power

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dc.contributor.authorZengin, Esra
dc.contributor.authorAbrahamson, Norman A.
dc.date.accessioned2024-03-13T10:33:01Z
dc.date.available2024-03-13T10:33:01Z
dc.date.issued2021
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractSelection of ground motions for use in nonlinear dynamic analysis is one of the most critical steps for both code-based design and probabilistic seismic risk assessment of structures. In practice, time-domain spectrum-matching methods, which add wavelet functions to an initial acceleration time series, have been widely used to obtain a record whose response spectrum closely matches the desired target spectrum. Although the spectral shape is known to be a good predictor of structural response, it does not represent the critical aspects of the velocity pulses, such as pulse amplitude and pulse period for near-fault ground motions. The Instantaneous Power (IP(T-1)), defined as the maximum rate of change of energy of the bandpass-filtered velocity time series over a short time interval given by half of the structural period, has been shown to be an effective alternative parameter to capture effects of the presence of a velocity pulse and the pulse period in near-fault record selection. We introduce an approach to modify time series so as to simultaneously match a target response spectrum and IP spectrum over a specified period interval. We demonstrate that the records modified using the proposed approach produce results comparable to those obtained using unscaled records, and prevent potential bias in structural response, relative to results when matching is performed without consideration of IP.en_US
dc.identifier.doi10.1177/87552930211014540
dc.identifier.endpage2561en_US
dc.identifier.issn8755-2930
dc.identifier.issn1944-8201
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85106583106en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage2545en_US
dc.identifier.urihttps://doi.org/10.1177/87552930211014540
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3731
dc.identifier.volume37en_US
dc.identifier.wosWOS:000715938400011en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherSage Publications Incen_US
dc.relation.ispartofEarthquake Spectraen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectResponse-spectrum matchingen_US
dc.subjecttime-domain adjustmenten_US
dc.subjectnear-fault ground motionen_US
dc.subjectvelocity pulseen_US
dc.subjectrecord selection and scalingen_US
dc.titleA procedure for matching the near-fault ground motions based on spectral accelerations and instantaneous poweren_US
dc.typeArticleen_US

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