Abstract
Bucharest is among the European cities that have the highest seismic risk levels. The combination of its vulnerable building stock and its proximity to the Vrancea intermediate-depth seismic source are the two main factors responsible for the high level of seismic risk. The analysis of recorded ground motions during significant Vrancea intermediate-depth earthquakes in the past 40 years has shown that considerable long-period spectral amplifications may occur in certain situations. Unfortunately, the existing database of ground motion recordings from seismic events with M W ≥ 7.0 is extremely limited (only 13 recordings) and as such the evaluation of the causes of these long-period ground motions is problematic. Nevertheless, by combining the results of different studies from the literature, several issues related to the occurrence of long-period ground motions have been addressed.
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References
Pavel F, Vacareanu R, Douglas J et al (2016) An updated probabilistic seismic hazard assessment for Romania and comparison with the approach and outcomes of the SHARE project. Pure Appl Geophys 173:1881–1905
Pitilakis K (2017) Site classification and definition of seismic actions in the revision of EC8. Keynote lecture presented during the 6th national Conference on Earthquake Engineering and 2nd national Conference on Earthquake Engineering and Seismology, Bucharest, Romania
Vacareanu R, Radulian M, Iancovici M, Pavel F, Neagu C (2015) Fore-arc and back-arc ground motion prediction model for Vrancea intermediate depth seismic source. J Earthq Eng 19:535–562
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Pavel, F., Popa, V., Vacareanu, R. (2018). Conclusions. In: Impact of Long-Period Ground Motions on Structural Design: A Case Study for Bucharest, Romania. SpringerBriefs in Geotechnical and Earthquake Engineering. Springer, Cham. https://doi.org/10.1007/978-3-319-73402-6_7
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DOI: https://doi.org/10.1007/978-3-319-73402-6_7
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