Influence of Masonry Infills on Seismic Performance of an Existing RC Building Retrofitted by Means of FPS Devices

The safety assessment of existing structures in areas with a relevant seismic hazard is one the major topics for engineers since many reinforced concrete have been realized disregarding design minimal details respect to present practice. In this context, primary issue order identify best retrofitting solution aim enhancing efficiency buildings. recent years, enhance behavior (RC) (with particular care ones), system isolation adopting friction pendulum (FPS) devices proved be among most diffuse and effective solutions. purpose paper explore effectiveness refurbishment using FPS single concavity on performance irregular RC building placed highly area central Italy. First, geometric material characteristics determined within approach based “knowledge levels”. Second, suitable numerical model fiber-modeling has established SAP2000, including mechanical non-linearities. Then, set 21 natural inputs, inclusive 3 accelerations over vertical horizontal directions, was adopted performing non-linear (NL) dynamic simulations. NL simulations performed considering structural system, both not isolator devices. influence actual distribution infill masonry panels overall structure also evaluated cases mentioned above. Finally, outcomes deriving from were helpful assessing advantages intervention improve building, highlighting infills.