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| HAL : hal-00667869, version 1 |
| DOI : 10.1142/S1756973711000455 |
| Fiche détaillée |  Récupérer au format |
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| Journal of Multiscale Modeling 3, 3 (2011) 133-149 |
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| A multi-scale seismic response of two-dimensional sedimentary valleys due to the combined effects of topography and geology. |
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| Behrouz Gatmiri 1, 2Solenn Le Pense 3 |
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| (2011) |
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| It is well known that the response of a site to seismic excitation depends on the local topographical and geological conditions. The current building codes already take into account unidimensional site effects but ignore complex site effects due to two-dimensional irregular configurations. The aim of this work is to contribute to the establishment of a simple predictive method to estimate site effects. The horizontal ground movements at the surface of sedimentary valleys subjected to SV waves with vertical incidence are calculated by using the HYBRID program, combining finite elements in the near field and boundary elements in the far field (FEM/BEM). A parametric study is conducted to examine the combined effects of topography and geology on the amplification of the response spectrum at various points across the valley. The influence of different parameters is considered, such as filling ratios (from empty to full valleys), impedance contrasts between bedrock and sediments, and dimensions. |
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| 1 : | Agence Nationale pour la Gestion des Déchets Radioactifs (ANDRA) |
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ANDRA |
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| 2 : | Departement of Civil Engineering |
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University of Tehran |
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| 3 : | Laboratoire Navier (NAVIER) |
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Ecole des Ponts ParisTech – CNRS : UMR8205 – IFSTTAR |
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| Géotechnique |
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| Domaine | : | Physique/Mécanique/Mécanique des matériaux Sciences de l'ingénieur/Mécanique/Mécanique des matériaux |
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| Seismic site effect – Seismic amplification – Building codes – Seismic response spectrum – Hybrid numerical method – Sedimentary valley – 2D configurations |
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| hal-00667869, version 1 | |
| http://hal-enpc.archives-ouvertes.fr/hal-00667869 | |
| oai:hal-enpc.archives-ouvertes.fr:hal-00667869 | |
| Contributeur : Solenn Le Pense | |
| Soumis le : Mercredi 8 Février 2012, 15:22:54 | |
| Dernière modification le : Mercredi 11 Avril 2012, 10:12:49 | |
