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Title: Near-fault earthquake ground motion prediction by a high-performance spectral element numerical code

Abstract

Near-fault effects have been widely recognised to produce specific features of earthquake ground motion, that cannot be reliably predicted by 1D seismic wave propagation modelling, used as a standard in engineering applications. These features may have a relevant impact on the structural response, especially in the nonlinear range, that is hard to predict and to be put in a design format, due to the scarcity of significant earthquake records and of reliable numerical simulations. In this contribution a pilot study is presented for the evaluation of seismic ground-motions in the near-fault region, based on a high-performance numerical code for 3D seismic wave propagation analyses, including the seismic fault, the wave propagation path and the near-surface geological or topographical irregularity. For this purpose, the software package GeoELSE is adopted, based on the spectral element method. The set-up of the numerical benchmark of 3D ground motion simulation in the valley of Grenoble (French Alps) is chosen to study the effect of the complex interaction between basin geometry and radiation mechanism on the variability of earthquake ground motion.

Authors:
 [1];  [1]
  1. Department of Structural Engineering, Politecnico di Milano P.za Leonardo da Vinci 32, 20133, Milano (Italy)
Publication Date:
OSTI Identifier:
21148893
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1020; Journal Issue: 1; Conference: 2008 seismic engineering conference: Commemorating the 1908 Messina and Reggio Calabria earthquake, Reggio Calabria (Italy), 8-11 Jul 2008; Other Information: DOI: 10.1063/1.2963745; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; BENCHMARKS; DESIGN; EARTHQUAKES; ENGINEERING; EVALUATION; FORECASTING; GROUND MOTION; PERFORMANCE; SEISMIC WAVES; SEISMOLOGY; SIMULATION; WAVE PROPAGATION

Citation Formats

Paolucci, Roberto, Stupazzini, Marco, and EUCENTRE, v. Ferrata 1, Pavia. Near-fault earthquake ground motion prediction by a high-performance spectral element numerical code. United States: N. p., 2008. Web. doi:10.1063/1.2963745.
Paolucci, Roberto, Stupazzini, Marco, & EUCENTRE, v. Ferrata 1, Pavia. Near-fault earthquake ground motion prediction by a high-performance spectral element numerical code. United States. https://doi.org/10.1063/1.2963745
Paolucci, Roberto, Stupazzini, Marco, and EUCENTRE, v. Ferrata 1, Pavia. 2008. "Near-fault earthquake ground motion prediction by a high-performance spectral element numerical code". United States. https://doi.org/10.1063/1.2963745.
@article{osti_21148893,
title = {Near-fault earthquake ground motion prediction by a high-performance spectral element numerical code},
author = {Paolucci, Roberto and Stupazzini, Marco and EUCENTRE, v. Ferrata 1, Pavia},
abstractNote = {Near-fault effects have been widely recognised to produce specific features of earthquake ground motion, that cannot be reliably predicted by 1D seismic wave propagation modelling, used as a standard in engineering applications. These features may have a relevant impact on the structural response, especially in the nonlinear range, that is hard to predict and to be put in a design format, due to the scarcity of significant earthquake records and of reliable numerical simulations. In this contribution a pilot study is presented for the evaluation of seismic ground-motions in the near-fault region, based on a high-performance numerical code for 3D seismic wave propagation analyses, including the seismic fault, the wave propagation path and the near-surface geological or topographical irregularity. For this purpose, the software package GeoELSE is adopted, based on the spectral element method. The set-up of the numerical benchmark of 3D ground motion simulation in the valley of Grenoble (French Alps) is chosen to study the effect of the complex interaction between basin geometry and radiation mechanism on the variability of earthquake ground motion.},
doi = {10.1063/1.2963745},
url = {https://www.osti.gov/biblio/21148893}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1020,
place = {United States},
year = {Tue Jul 08 00:00:00 EDT 2008},
month = {Tue Jul 08 00:00:00 EDT 2008}
}