This paper presents empirical fragility curves for the Italian residential reinforced concrete building stock, by taking advantage of post-earthquake damage data collected in the online platform Da.D.O., recently released by the Italian Department of Civil Protection. The peak ground acceleration from shakemap is selected to represent the ground motion severity at the building locations. Reinforced concrete buildings are classified into fifteen structural typolo-gies, identified based on the number of stories (from 1 to 5) and the type of design (i.e. for gravity loads only, for seismic loads pre-1981 and for seismic loads post-1981). Typological fragility curves are derived for five damage states of the EMS-98, accounting for damage on both structural and non-structural building components. Two vulnerability classes, C2 and D, of decreasing vulnerability are defined, then refined based on the building class of height (i.e. low-rise, mid-rise and high-rise). Fragility curves of the predefined vulnerability classes are then obtained by averaging typologicalfragility functions, suitably weighted based on the composition of the existing building stock.The proposed fragility model is then implemented in the Italian National platform for large-scale seismic risk assessment.
A procedure for seismic risk assessment of Italian RC buildings / Del Gaudio, C.; Di Ludovico, M.; Magenes, G.; Penna, A.; Polese, M.; Prota, A.; Ricci, P.; Rosti, A.; Rota, M.; Verderame, G. M.. - (2019), pp. 1759-1769. (Intervento presentato al convegno 7th ECCOMAS Thematic Conference on Computational Methods in Structural Dynamics and Earthquake Engineering tenutosi a Crete (Greece) nel 24-26 June 2019).
A procedure for seismic risk assessment of Italian RC buildings
Del Gaudio C.;Di Ludovico M.;Polese M.;Prota A.;Ricci P.;Verderame G. M.
2019
Abstract
This paper presents empirical fragility curves for the Italian residential reinforced concrete building stock, by taking advantage of post-earthquake damage data collected in the online platform Da.D.O., recently released by the Italian Department of Civil Protection. The peak ground acceleration from shakemap is selected to represent the ground motion severity at the building locations. Reinforced concrete buildings are classified into fifteen structural typolo-gies, identified based on the number of stories (from 1 to 5) and the type of design (i.e. for gravity loads only, for seismic loads pre-1981 and for seismic loads post-1981). Typological fragility curves are derived for five damage states of the EMS-98, accounting for damage on both structural and non-structural building components. Two vulnerability classes, C2 and D, of decreasing vulnerability are defined, then refined based on the building class of height (i.e. low-rise, mid-rise and high-rise). Fragility curves of the predefined vulnerability classes are then obtained by averaging typologicalfragility functions, suitably weighted based on the composition of the existing building stock.The proposed fragility model is then implemented in the Italian National platform for large-scale seismic risk assessment.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
