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Source and Site Factors in Microzonation
Abstract The comprehensive calculation of site specific earthquake characteristics on the ground surface for microzonation requires input acceleration time histories compatible with the regional earthquake hazard representing source factors. Real and simulated acceleration records were used as input for site response analyses to evaluate the reliability and to observe the induced variability. The second component of site specific calculations is site characterisation and establishment of representative soil profiles down to engineering bedrock that represent the site factors. Grid systems with 250m × 250m cells were adopted to define the site conditions in terms of representative soil profiles for each cell. The third component of the site specific calculations is the analytical procedure used for site response analysis and the interpretation scheme of the calculated site specific parameters. Parametric studies were conducted for the probabilistic assessment of microzonation with respect to ground shaking intensity and liquefaction susceptibility as well as for vulnerability assessment based on acceleration response spectra, peak ground accelerations, and cyclic shear stress variation with depth, calculated by site response analyses for each cell.
Source and Site Factors in Microzonation
Abstract The comprehensive calculation of site specific earthquake characteristics on the ground surface for microzonation requires input acceleration time histories compatible with the regional earthquake hazard representing source factors. Real and simulated acceleration records were used as input for site response analyses to evaluate the reliability and to observe the induced variability. The second component of site specific calculations is site characterisation and establishment of representative soil profiles down to engineering bedrock that represent the site factors. Grid systems with 250m × 250m cells were adopted to define the site conditions in terms of representative soil profiles for each cell. The third component of the site specific calculations is the analytical procedure used for site response analysis and the interpretation scheme of the calculated site specific parameters. Parametric studies were conducted for the probabilistic assessment of microzonation with respect to ground shaking intensity and liquefaction susceptibility as well as for vulnerability assessment based on acceleration response spectra, peak ground accelerations, and cyclic shear stress variation with depth, calculated by site response analyses for each cell.
Source and Site Factors in Microzonation
Ansal, Atilla (author) / Tönük, Gökçe (author)
2007-01-01
20 pages
Article/Chapter (Book)
Electronic Resource
English
Peak Ground Acceleration , Spectral Acceleration , Peak Ground Velocity , Acceleration Time History , Acceleration Response Spectrum Engineering , Building Construction , Geotechnical Engineering & Applied Earth Sciences , Civil Engineering , Geoengineering, Foundations, Hydraulics , Soil Science & Conservation , Computational Intelligence
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