GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 2.2 GNGTS 2023 Figure 2 – In the Preturo - Pagliare di Sassa basin represented in section F-F', a partial 2D basin effect is hypothesized because, in site B located within it, the one-dimensional AF1D (1.85) is lower than the two-dimensional AF2D (2.23). Furthermore, a basin edge effect, as defined in Lanzo and Silvestri (1999), is hypothesized because at site E the AF1D (1.74) is smaller than the AF2D (2.47). The diamond symbol refers to AF calculated with 1D simulation. P: boreholes; SCZ and UAP: calcareous and terrigenous units belonging to the seismic bedrock; the other units refer to the Plio-Quaternary basin-filling detrital units. The location of section F-F’ is reported in Fig. 1. AF intervals: Class 1.0: AF<1.05; Class 1.1: 1.05 ≤ AF>1.25 (not present); Class 1.3: 1.25 ≤ AF>1.45; Class 1.5: 1.45 ≤ AF>1.65; Class 1.7: 1.65 ≤ AF>1.85; Class 1.9: 1.85 ≤ AF>2.05; Class 2.1: 2.05 ≤ AF>2.25; Class 2.3: 2.25 ≤ AF>2.45 (not present). References CS.LL.PP .; 2018: Aggiornamento delle Norme tecniche per le costruzioni. Gazzetta Ufficiale della Repubblica Italiana, 42. Chiaradonna A.; 2020: Valutazione del potenziale di liquefazione dei terreni. Metodi di analisi e applicazioni. Hevelius Edizioni, pp. 152. Cosentino G., Pennica F.; 2022: Manuale d’uso del plugin MzS Tools. https://mzs-tools.readthedocs.io/it/latest/intro.html Gruppo di lavoro MS; 2008: Indirizzi e criteri per la microzonazione sismica. Conferenza delle Regioni e delle Province autonome - Dipartimento della protezione civile, Roma, 3 vol. e Dvd. Iervolino I., Galasso C., Cosenza E.; 2009: REXEL: computer aided record selection for code-based seismic structural analysis. BEE, 8, 339-362. Iwasaki T., Arakawa T., Tokida K.; 1984: Simplified Procedures for assessing soil liquefaction during earthquakes. Soil Dynamics and Earthquake Engineering, 3(1):49–58.