Site amplification functions for central and eastern North America – Part I: Simulation data set development

Joseph Harmon, Youssef M.A. Hashash, Jonathan P. Stewart, Ellen M. Rathje, Kenneth W. Campbell, Walter J. Silva, Boqin Xu, Michael Musgrove, Okan Ilhan

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents the development of large-scale simulation-based data sets used to inform new site amplification models for Central and Eastern North America (CENA). Linear elastic, equivalent linear, and nonlinear one-dimensional site response simulations of site conditions in CENA are employed. An analysis tree is introduced to capture the range of expected CENA geologic conditions. Independent variables include the following: (1) representative and random shear wave velocity (VS) profiles using data from the literature; (2) randomized, nonlinear shear modulus reduction and damping vs. shear strain curves with constraint on soil shear strength; and (3) outcrop ground motions representative of the VS ¼ 3,000 m∕s CENA reference rock condition. The resulting database of 1,747,278 simulations is conditioned on several parameters relevant to site amplification, which facilitates model development that is the subject of a companion paper. The database is openly available for use by other researchers.

Original languageEnglish (US)
Pages (from-to)787-814
Number of pages28
JournalEarthquake Spectra
Volume35
Issue number2
DOIs
StatePublished - May 2019

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Geophysics

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