Seismic Vulnerability Assessment of Gravity Load Designed R/C Frames

摘要: The seismic vulnerability of some frame structures, typical existing Reinforced Concrete buildings designed only to vertical loads, has been evaluated. They are representative building types widely present in the Italian stock last 30 years. A simulated design structures made with reference codes force, available handbooks and current practice at time construction. response is calculated through non linear dynamic analyses artificial natural accelerograms. Three main have examined: bare frames, regularly infilled frames pilotis frames. results show a high for buildings: they can be assigned class B European Macroseismic Scale 1998 (EMS98). On contrary, low (class D EMS98) attributed this case collapse considered unlikely also strong earthquakes. An intermediate behavior shown by without infills, whose placed between classes C EMS98.