Weathered Zone Effects: Central and Eastern North American Site Response

Abstract

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.

Meeting Name

Geotechnical Frontiers 2017 (2017: Mar. 12-15, Orlando, FL)

Department(s)

Civil, Architectural and Environmental 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)

0895-0563

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 American Society of Civil Engineers (ASCE), All rights reserved.

Publication Date

01 Mar 2017

Link to Full Text

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