Nonlinear site amplification model for ergodic seismic hazard analysis in Central and Eastern North America

Youssef M.A. Hashash; Okan Ilhan; Joseph A. Harmon; Grace A. Parker; Jonathan P. Stewart; Ellen M. Rathje; Kenneth W. Campbell; Walter J. Silva

doi:10.1177/8755293019878193

Nonlinear site amplification model for ergodic seismic hazard analysis in Central and Eastern North America

Youssef M.A. Hashash, Okan Ilhan, Joseph A. Harmon, Grace A. Parker, Jonathan P. Stewart, Ellen M. Rathje, Kenneth W. Campbell, Walter J. Silva

Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This article presents recommendations for nonlinear site amplification models in Central and Eastern North America (CENA), which are developed from one-dimensional site response analyses results and accompanies linear site amplification model in a companion article. Two median nonlinear amplification models using identical functional forms are produced as a function of V_S₃₀ and peak ground acceleration for reference conditions (PGA_r) of V_S = 3000 m/s and V_S₃₀ = 760 m/s. An epistemic uncertainty model on median nonlinear amplification is proposed as a piecewise functional form to generate reasonable variations of nonlinear amplification across the period and V_S₃₀ ranges of interest. Limitations of the models are based on both the methodology of the model derivation and assumptions of nonlinear amplification model forms.

Original language	English (US)
Pages (from-to)	69-86
Number of pages	18
Journal	Earthquake Spectra
Volume	36
Issue number	1
DOIs	https://doi.org/10.1177/8755293019878193
State	Published - Feb 1 2020

Keywords

Site amplification
ergodic seismic hazard analysis

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geophysics

Online availability

10.1177/8755293019878193

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title = "Nonlinear site amplification model for ergodic seismic hazard analysis in Central and Eastern North America",

abstract = "This article presents recommendations for nonlinear site amplification models in Central and Eastern North America (CENA), which are developed from one-dimensional site response analyses results and accompanies linear site amplification model in a companion article. Two median nonlinear amplification models using identical functional forms are produced as a function of VS30 and peak ground acceleration for reference conditions (PGAr) of VS = 3000 m/s and VS30 = 760 m/s. An epistemic uncertainty model on median nonlinear amplification is proposed as a piecewise functional form to generate reasonable variations of nonlinear amplification across the period and VS30 ranges of interest. Limitations of the models are based on both the methodology of the model derivation and assumptions of nonlinear amplification model forms.",

keywords = "Site amplification, ergodic seismic hazard analysis",

author = "Hashash, {Youssef M.A.} and Okan Ilhan and Harmon, {Joseph A.} and Parker, {Grace A.} and Stewart, {Jonathan P.} and Rathje, {Ellen M.} and Campbell, {Kenneth W.} and Silva, {Walter J.}",

note = "Funding Information: The author(s) received financial support for the research, authorship, and/ or publication of this article: This study was partially supported by PEER as part of NGA-East, a project funded by the U.S. Nuclear Regulatory Commission, the U.S. Department of Energy, and the Electric Power Research Institute with the participation of the USGS, and also supported by the USGS under Grant Numbers G14AP00102, G14AP00103, G14AP00104, G16AP00005, and Republic of Turkey Ministry of National Education. Publisher Copyright: {\textcopyright} The Author(s) 2020.",

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AU - Hashash, Youssef M.A.

AU - Ilhan, Okan

AU - Harmon, Joseph A.

AU - Parker, Grace A.

AU - Stewart, Jonathan P.

AU - Rathje, Ellen M.

AU - Campbell, Kenneth W.

AU - Silva, Walter J.

N1 - Funding Information: The author(s) received financial support for the research, authorship, and/ or publication of this article: This study was partially supported by PEER as part of NGA-East, a project funded by the U.S. Nuclear Regulatory Commission, the U.S. Department of Energy, and the Electric Power Research Institute with the participation of the USGS, and also supported by the USGS under Grant Numbers G14AP00102, G14AP00103, G14AP00104, G16AP00005, and Republic of Turkey Ministry of National Education. Publisher Copyright: © The Author(s) 2020.

PY - 2020/2/1

Y1 - 2020/2/1

N2 - This article presents recommendations for nonlinear site amplification models in Central and Eastern North America (CENA), which are developed from one-dimensional site response analyses results and accompanies linear site amplification model in a companion article. Two median nonlinear amplification models using identical functional forms are produced as a function of VS30 and peak ground acceleration for reference conditions (PGAr) of VS = 3000 m/s and VS30 = 760 m/s. An epistemic uncertainty model on median nonlinear amplification is proposed as a piecewise functional form to generate reasonable variations of nonlinear amplification across the period and VS30 ranges of interest. Limitations of the models are based on both the methodology of the model derivation and assumptions of nonlinear amplification model forms.

AB - This article presents recommendations for nonlinear site amplification models in Central and Eastern North America (CENA), which are developed from one-dimensional site response analyses results and accompanies linear site amplification model in a companion article. Two median nonlinear amplification models using identical functional forms are produced as a function of VS30 and peak ground acceleration for reference conditions (PGAr) of VS = 3000 m/s and VS30 = 760 m/s. An epistemic uncertainty model on median nonlinear amplification is proposed as a piecewise functional form to generate reasonable variations of nonlinear amplification across the period and VS30 ranges of interest. Limitations of the models are based on both the methodology of the model derivation and assumptions of nonlinear amplification model forms.

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Nonlinear site amplification model for ergodic seismic hazard analysis in Central and Eastern North America

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