Modern approaches to reducing damage from earthquakes
- 作者: Shebalin P.N.1
-
隶属关系:
- Institute of Earthquake Prediction Theory and Mathematical Geophysics of the Russian Academy of Sciences
- 期: 卷 94, 编号 8 (2024)
- 页面: 738-748
- 栏目: ЛАВЁРОВСКИЕ ЧТЕНИЯ 2024
- URL: https://journals.rcsi.science/0869-5873/article/view/268304
- DOI: https://doi.org/10.31857/S0869587324080058
- EDN: https://elibrary.ru/FDAHFF
- ID: 268304
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详细
The experience of the catastrophic earthquake on February 6, 2023 in Turkey reminds us of the need to improve the seismic hazard reduction system in Russia as well. The main protective measure is earthquake-resistant construction based on General Seismic Zoning (GSZ) maps. The current maps, as in global practice, are based on a probabilistic seismic hazard assessment. Over the 25 years of use in Russia, GSZ maps have generally justified themselves. Errors made, both in the direction of underestimating the hazard in the areas of several strong earthquakes and overestimating the hazard in large areas, were inevitable at the level of data available at the time the maps were created.
The work analyzes the most likely causes of errors in the GSZ-maps, ways to overcome them, argues for the need to introduce a risk-based approach to reduce the total economic damage from earthquakes, including unjustified costs for anti-seismic reinforcement of structures, discusses the different goals of probabilistic and deterministic approaches to assessing seismic hazard.
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作者简介
P. Shebalin
Institute of Earthquake Prediction Theory and Mathematical Geophysics of the Russian Academy of Sciences
编辑信件的主要联系方式.
Email: shebalin@mitp.ru
俄罗斯联邦, Moscow
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