Probabilistic Microzonation of Urban Territories: A Case of Tashkent City

摘要: The problem of accounting for local soil effect on earthquake ground motion is especially urgent when assessing seismic hazard — recent needs engineering require site effects to be included into maps. However, most works do not consider the variety conditions or are performed generalized categories, such as “hard rock,” “soft soil” “alluvium.” A technique calculations basis Fourier Amplitude Spectra recently developed by authors allows us create maps involving influence using soil/bedrock spectral ratios. Probabilistic microzoning may constructed showing macroseismic intensity, peak acceleration, response and design spectra various return periods (probability exceedance), that allow optimization decisions. An application this approach presented which focused probabilistic Tashkent City.