Relationships between empirical damage and direct/indirect costs for the assessment of seismic loss scenarios

Abstract The definition of relationships between damage and losses is a crucial aspect for the prediction seismic effects development reliable models to define risk maps, loss scenarios mitigation strategies. paper focuses on analysis post-earthquake empirical data buildings’ expressed as usability rating or global state associated costs repair (i.e. direct costs) population assistance part total indirect costs). refers collected residential buildings damaged by 2009 L'Aquila earthquake. For different states, presents in terms percentage with respect reference unit cost new building ( %C r costs, respectively). In particular, undamaged, lightly severely classified according A, B-C E Italian classification) five Damage States (DSs). DSs comply European Macroseismic Scale (EMS-98) derive from literature available matrices properly defined convert structural non-structural components into damage. probability density functions relevant statistics actual reconstruction process, while, determine those related , deep types, person/month each form, methodology associate such are herein presented discussed. Finally, relationship calibrated directly correlate their occupants. paramount importance because they allow be simply using fragility curves (defined mechanical approaches) aimed at evaluating exceeding states existing buildings.