GNGTS 2023 - Atti del 41° Convegno Nazionale

Session 1.1 GNGTS 2023 To calculate the LSR, the input earthquakes search was carried out by the software REXEL (Iervolino et al., 2010) using the following research parameters: Magnitude ranges between 5,5 - 6,5; distance range 0-30 km. The soil classification corresponds to A type (Vs >800 m/s). The obtained 7 accelerograms, shown in figure 3a, were used as accelerograms input in the LSR code. A preliminary LSR has been calculated by the finite element method, using the software LSR2D and considering the simplified 1D seismostatigraphic models obtained. The Local Seismic Response obtained for sites 1 and 2 differs for periods between about 0.2 and 0.6 s (Fig. 3b); indeed, an amplification for site 2 (Stoa) is shown which may be related to the several collapses and damages observed in this area. Figure 3 a) The seven accelerogram of the reference earthquakes; b) Local Seismic Response spectrum computed. References