Analytical versus observational fragilities: the case of Pettino (L’Aquila) damage data database

摘要: A damage data database of 131 reinforced concrete (RC) buildings, collected after 2009 L’Aquila (Italy) earthquake, is employed for the evaluation observational fragility curves. The specific interpretation allowed carrying out curves slight, moderate, and heavy damage, (i.e., DS1, DS2, DS3), defined according to EMS 98 macroseismic scale. Observational are then calibration FAST analytical methodology. method a spectral based approach, meant estimate infilled RC buildings up DS3, evaluated, again, EMS98. Kullback–Leibler divergence check matching between fragilities. input variables can vary in quite large ranges provides valuable suggestion application other cases which field not available. Results showed that optimizing values, calibrated, good agreement with typical values assumed literature. Analytical results very satisfactory DS2 while systematical underestimation was found case DS1.