Abstract
The problem of accounting for local soil effect on earthquake ground motion is especially urgent when assessing seismic hazard — recent needs of earthquake engineering require local site effects to be included into hazard maps. However, most recent works do not consider the variety of soil conditions or are performed for generalized site categories, such as “hard rock,” “soft soil” or “alluvium.” A technique of seismic hazard calculations on the basis of the Fourier Amplitude Spectra recently developed by the authors allows us to create hazard maps involving the influence of local soil conditions using soil/bedrock spectral ratios. Probabilistic microzoning maps may be constructed showing macroseismic intensity, peak ground acceleration, response and design spectra for various return periods (probability of exceedance), that allow optimization of engineering decisions. An application of this approach is presented which focused on the probabilistic microzoning of the Tashkent City.
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Sokolov, V.Y., Chernov, Y.K. (2002). Probabilistic Microzonation of Urban Territories: A Case of Tashkent City. In: Roca, A., Oliveira, C. (eds) Earthquake Microzoning. Pageoph Topical Volumes. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-8177-7_2
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DOI: https://doi.org/10.1007/978-3-0348-8177-7_2
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