Title of article :
Simplified vibratory characterization of alluvial basins
Author/Authors :
Semblat، نويسنده , , Jean-François and Paolucci، نويسنده , , Roberto and Duval، نويسنده , , Anne-Marie، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2003
Abstract :
For the analysis of seismic wave amplification, modal methods are interesting tools to study the modal properties of geological structures. Modal approaches mainly lead to information on such parameters as fundamental frequencies and eigenmodes of alluvial basins. For a specific alluvial deposit in Nice (France), a simplified modal approach involving the Rayleigh method is considered. This approach assumes a set of admissible shape functions for the eigenmodes and allows a fast estimation of the fundamental frequency of the basin. The agreement with other numerical results (Boundary Element Method) and experimental ones is fully satisfactory. The simplified modal method then appears as an efficient mean for the global vibratory characterization of geological structures towards resonance. To cite this article: J.-F. Semblat et al., C. R. Geoscience 335 (2003).
Keywords :
Vibration , Vibration , resonance , earthquake , Amplification , Amplification , Site effects , Seismic wave , Résonance , Eigenmodes , séisme , effets de site , modes propres , onde sismique
Journal title :
Comptes Rendus Geoscience
Journal title :
Comptes Rendus Geoscience