Investigation of the effect of real ground motion record number on seismic response of regular and vertically irregular RC frames

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dc.authorid0000-0002-3526-0764en_US
dc.contributor.authorDemir, Ahmet
dc.date.accessioned2023-12-04T11:18:17Z
dc.date.available2023-12-04T11:18:17Z
dc.date.issued2022en_US
dc.departmentBAİBÜ, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümüen_US
dc.description.abstractNonlinear time history analysis is an analytical method generally used in performance-based seismic design. With this method, seismic responses are obtained more realistically. Selection of ground motion records for nonlinear time history analysis is an important step since it strongly affects the analysis results. Therefore, it has always been a matter of curiosity to investigate the effect of the characteristics, content and number of the records on the analysis results. In this study, seismic responses of regular and irregular RC frames were investigated by varying the number of real ground motion records in a set. For this purpose, 13 different groups that contain three to hundred real ground motion records in size in a set have been considered and ten different earthquake record sets are obtained for each group. Ground motion selection procedure of Eurocode-8 was considered and a total of 130 sets were used for nonlinear response analysis of RC frames. Global drift ratio, maximum floor acceleration, inter-story drift ratio and six different intensity measures (IMs) were used to investigate the effect of the number of records. According to analysis results, nonlinear responses of RC frames are more stable and might be sufficient when the number of real records in a set is higher than seven according to Eurocode-8. Results indicate that if the number of real records in a set are lower than seven, conservative seismic responses can be found since the maximum rather than mean response values are used. It is observed that dispersion of seismic demands and mean to median ratios can be increased if the number of real records in a set is higher than ten. In addition, the correlation between some of IMs and seismic demands increase when the number of records in a set increased from three to seven and it remains stable from seven to hundred records. Furthermore, 7, 8, 15 and 22 records show the lowest error terms of considered engineering demand parameters for regular and irregular RC frames.en_US
dc.identifier.citationDemir, A. (2022, May). Investigation of the effect of real ground motion record number on seismic response of regular and vertically irregular RC frames. In Structures (Vol. 39, pp. 1074-1091).en_US
dc.identifier.doi10.1016/j.istruc.2022.03.091
dc.identifier.endpage1091en_US
dc.identifier.issn2352-0124
dc.identifier.scopus2-s2.0-85127504329en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1074en_US
dc.identifier.urihttp://dx.doi.org/10.1016/j.istruc.2022.03.091
dc.identifier.urihttps://hdl.handle.net/20.500.12491/11894
dc.identifier.volume39en_US
dc.identifier.wosWOS:000792740200001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorDemir, Ahmet
dc.language.isoenen_US
dc.publisherElsevier Science Incen_US
dc.relation.ispartofStructuresen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectEurocode-8en_US
dc.subjectReal Ground Motion Recorden_US
dc.subjectRegular and Irregular Framesen_US
dc.subjectStatistical Evaluationen_US
dc.subjectDisplacement Demandsen_US
dc.subjectIntensity Measuresen_US
dc.titleInvestigation of the effect of real ground motion record number on seismic response of regular and vertically irregular RC framesen_US
dc.typeArticleen_US

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