Weathered Zone Effects: Central and Eastern North American Site Response
This study quantifies uncertainty in Central and Eastern North America (CENA) Reference Rock (RR), Weathered Zone (WZ), and resulting earthquake ground surface site response predictions. The assumptions used for modeling the WZ have an effect on the predicted ground surface response. Random modeling of the RR and WZ is implemented using a simple Taylor Series expansion. Equivalent linear site response analysis is performed with a synthetically generated motion and includes the site attenuation parameter, kappa (κ), for modeling site damping. Probabilistic site response spectra and ratios of response spectra are presented. This study introduces a simple method for quantifying uncertainty in ground surface response while capturing RR and WZ variability.
M. Eddy et al., "Weathered Zone Effects: Central and Eastern North American Site Response," Geotechnical Special Publication, vol. GSP 281, pp. 205-214, American Society of Civil Engineers (ASCE), Mar 2017.
The definitive version is available at https://doi.org/10.1061/9780784480489.021
Geotechnical Frontiers 2017 (2017: Mar. 12-15, Orlando, FL)
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Geotechnical Engineering, Eastern North America; Equivalent Linear Site Response; Ground Surfaces; North American; Ratios Of Response; SIMPLE Method; Site Attenuation; Taylor Series Expansions, Civil Engineering
International Standard Serial Number (ISSN)
Article - Conference proceedings
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