1998 · 48 citations · 1 references
EngineeringCivil EngineeringGeophysicsEarthquake EngineeringStructural AnalysisStructural EngineeringDamage AssessmentEarthquake Ground MotionEarthquake Response Of StructuresPost-earthquake Damage AssessmentStrong Ground MotionStrong-motion SeismologyArias IntensityAttenuation RelationshipsDamage Index DevelopmentEarthquake-induced DamageEarthquakesFragility AnalysisSeismic Damage AssessmentStructural Damage Classification
The damage surveys carried out after some destructive italian earthquakes in nearly 50000 buildings have been used, together with the estimates of some strong motion parameters inferred from attenuation relationships, for the evaluation of the distribution of the damage as a function of the characteristics of the seismic input. The data base was sorted into three structural classes and six damage levels according to the MSK macroseismic scale. As global damage indicator, per each municipality and structural class, a mean damage index, calculated as the weighted average of the frequencies of each damage level, has been introduced. Adopting a binomial distribution of the damage, empirical fragility curves, as a function of PGA, Arias Intensity, and Effective Peak Acceleration, have been evaluated.
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