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https://hdl.handle.net/20.500.14365/5240
Title: | Ductility Demands for Stiffness-Degrading Sdof Systems Under Pulse-Like Ground Motions of the 2023 Pazarcık (kahramanmaraş) Earthquake | Authors: | Ucar, T. Merter, Onur |
Keywords: | Ductility demand spectra (DDS) Inelastic displacement ratios Predictive model Pulse-like ground motions Stiffness-degrading systems Degrees of freedom (mechanics) Ductility Earthquakes Reinforced concrete Degrading system Displacement ductility Ductility demand spectrum Ductility demands Inelastic displacement ratios Predictive models Pulse-like ground motions Single degree of freedom systems Spectra's Stiffness-degrading system Stiffness |
Publisher: | Springer Science and Business Media B.V. | Abstract: | This paper investigates the inelastic displacement ratios (IDRs) and displacement ductility demands of a wide range of single-degree-of-freedom (SDOF) systems subjected to pulse-like ground motions (GMs) of the 2023 Pazarcık (Kahramanmaraş) earthquake. A set of twenty-seven GMs characterized as pulse-like are utilized in the study. As-recorded velocity time histories of horizontal components are rotated over 90° at a step of 1° to attain the waveform with the largest peak ground velocity (PGV) over all horizontal orientations. Inelastic displacement ratio and displacement ductility spectra are computed through nonlinear response history analysis (RHA). Local amplifications of both spectra are observed at some periods. The results of this study show that large inelastic displacement and ductility demands are imposed on certain reinforced concrete (RC) structures. Finally, predictive models of the mean inelastic displacement ratio and mean ductility demand spectra (DDS) are developed based on the Gauss–Newton algorithm (GNA). The model provides a strong correlation between the computed and the estimated data, and sufficient convergence criteria. The results of this study collectively emphasize the necessity of integrating pulse-like GMs into future revisions of earthquake codes. © The Author(s) 2024. | URI: | https://doi.org/10.1007/s10518-024-01882-4 https://hdl.handle.net/20.500.14365/5240 |
ISSN: | 1570-761X |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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