NUMERICAL MODELLING OF SHAKING EFFECTS DUE TO STRONG MOTIONS ON THE TIBER ALLUVIAL DEPOSITS IN ROME (ITALY)

Autor: Bonilla, Fabian, Bozzano, Francesca, Gelis, Céline, Giacomi, Anna Chiara, Lenti, Luca, Martino, Salvatore, d'Avila, Maria Paola Santisi, Semblat, Jean-François
Přispěvatelé: Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome], Institut de Radioprotection et de Sûreté Nucléaire (IRSN), Séismes et Vibrations (IFSTTAR/GERS/SV), Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR)-Communauté Université Paris-Est, Centro di Ricerca CERI 'Previsione, Prevenzione e Controllo dei Rischi Geologici' (CERI), Laboratoire Jean Alexandre Dieudonné (JAD), Université Côte d'Azur (UCA)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), University of California Santa Barbara
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Effects of Surface Geology on Seismic Motion
Effects of Surface Geology on Seismic Motion, University of California Santa Barbara, Aug 2011, University of California Santa Barbara, United States
Popis: A multidisciplinary approach is proposed for evaluating the effects of shaking due to strong motions on the Tiber river alluvial deposits in Rome's historical centre. At this aim, a detailed 3D geological model of the Tiber river alluvial deposit has been constructed and a numerical analysis of site response was performed along two geological sections across the historical centre of Rome. The numerical models were performed in both 1D and 2D configurations assuming linear and nonlinear conditions, by applying a three component seismic input. The results show that the maximum shear strains are strongly conditioned by the layer geometries (i.e. 2D or 1D conditions) and by the soil heterogeneity. Moreover, the reliability of the maximum strains obtained by numerical modeling is discussed comparing these values respect to both the volumetric and the degradation dynamic thresholds of the considered soils.
Comment: Effects of Surface Geology on Seismic Motion, Aug 2011, University of California Santa Barbara, United States. Effects of Surface Geology on Seismic Motion
Databáze: OpenAIRE