Le but de cet article est de comparer les résultats de l'analyse numérique de la réponse sismique locale réalisée par deux différents codes non linéaires 1D, Onda (Lo Presti et al., 2006) et Deepsoil (Hashash et al., 2017). Des analyses numériques ont été effectuées on un site de la ville de Messine, où se trouve un important pont routier (pont de Ritiro), récemment intéressé par plusieurs travaux de sécurité. Pour ce site, la caractérisation géotechnique et géologique est disponible, avec des tests in situ et en laboratoire montrant un sol principalement sableux. Des analyses de réponse sismique locale ont été effectuées en utilisant le sismogramme synthétique Amoruso pour le tremblement de terre de Messine en 1908 (Amoruso et al. 2002). Les résultats des analyses numériques sont présentés sous forme de comparaisons en termes de profils d'accélération maximale, de profils de contrainte de cisaillement maximum, de spectres de réponse, d'accélérogramme de réponse en surface, de spectres de Fourier et de fonction d'amplification.
The aim of this paper is to compare the results of numerical local seismic response analysis (LSR), performed by two different non linear 1-D codes, Onda (Lo Presti et al., 2006) and Deepsoil (Hashash et al., 2017). Numerical analyses of seismic response have been carried out on a site in the city of Messina (Italy), where it is located an important highway bridge (Ritiro bridge), which recently has been interested by several safety works. For this site the geotechnical characterization is available, with in situ and laboratory tests that show the presence of sandy soils. Local seismic response analyses have been carried out using some synthetic seismograms of the Messina and Reggio Calabria 1908 earthquake (Amoruso et al., 2002). Results of the numerical analyses are presented as comparisons in terms of maximum acceleration profiles, maximum shear strain profiles, response spectra, surface response seismograms, Fourier spectra and amplification ratios.
A Comparative Study on Seismic Response Analysis of Soils Using Different Numerical Codes
Cavallaro A
2019
Abstract
The aim of this paper is to compare the results of numerical local seismic response analysis (LSR), performed by two different non linear 1-D codes, Onda (Lo Presti et al., 2006) and Deepsoil (Hashash et al., 2017). Numerical analyses of seismic response have been carried out on a site in the city of Messina (Italy), where it is located an important highway bridge (Ritiro bridge), which recently has been interested by several safety works. For this site the geotechnical characterization is available, with in situ and laboratory tests that show the presence of sandy soils. Local seismic response analyses have been carried out using some synthetic seismograms of the Messina and Reggio Calabria 1908 earthquake (Amoruso et al., 2002). Results of the numerical analyses are presented as comparisons in terms of maximum acceleration profiles, maximum shear strain profiles, response spectra, surface response seismograms, Fourier spectra and amplification ratios.File | Dimensione | Formato | |
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