GNGTS 2022 - Atti del 40° Convegno Nazionale

298 GNGTS 2022 Sessione 2.2 replacement cost (URC) equal to 1200 €/m 2 . Fig. 2 shows the position of all the simulated epicenters, located at 5, 10, 20, 30, 40 and 50 km far from the city center; all the four cardinal directions are tested for considering the uncertainty arising from the randomness of the epicenters location. Furthermore, since the exact soil characteristics for each building is unknow, the two most likely soil categories are considered in the analysis, i.e. soil B and C types. Finally, three different level of repair cost ratio (RCR) are adopted in the analysis in order to consider the potential variability of losses (Dolce et al., 2021). Regarding the magnitude M W , a set of 6 values are considered, i.e. 5, 5.3, 5.5, 5.7, 6 and 6.5. Considering all the uncertainty sources (earthquake location, soil characteristics and RCR), for each of the 6 6 couples of distance R andmagnitude Fig. 1 - Exposure model for the Municipality of Ajdovščina: subdivision of buildings according to the adopted taxonomy (a), construction year (b) and number of storeys (c) distributions. Tab. 1 - Fragility curves parameters. Taxonomy class Reference    DS1   DS2   DS3   DS4 μ [g] σ [g] μ [g] σ [g] μ [g] σ [g] μ [g] σ [g] 1 Masonry Kostov et al. (2004) 0,16 0,15 0,23 0,22 0,26 0,24 0,45 0,42 2 RC, 1-2 Ahmad et al. (2010) 0,09 0,03 0,13 0,06 0,26 0,10 0,52 0,19 3 RC, 3+ Ahmad et al. (2010) 0,09 0,03 0,12 0,05 0,19 0,08 0,33 0,12 4 Stone Ahmad et al., 2010 0,09 0,06 0,11 0,07 0,15 0,07 0,18 0,07 5 Wood HAZUS W1 - PC 0,22 0,16 0,36 0,25 0,63 0,45 0,95 0,67 6 Stone & masonry Kostov et al., 2004 0,18 0,12 0,23 0,15 0,30 0,19 0,32 0,20 7 Precast HAZUS PC2L - HC 0,29 0,21 0,44 0,31 0,85 0,60 1,51 1,07 8 RC & masonry Kostov et al., 2004 0,16 0,15 0,26 0,24 0,41 0,38 0,56 0,52