| Abstract |
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The paper examines the seismic behaviour of base isolated structures with friction pendulum slide bearing devices subjected to near fault events characterized by significant vertical ground motion components. In particular, in order to evaluate the effects of the mass eccentricity, of the ratio between the superstructure mass and the overall mass system, of the bearing radius of curvature and of the friction on the seismic response, non-linear dynamic analysis, carried out by using MDOF numerical model, have been performed by considering two near-fault seismic events, L’Aquila 2009 and Emilia Romagna 2012. The results obtained show that mass eccentricity do not influence significantly the main seismic response parameters, while the mass ratio, the friction coefficient and the radius strongly affect the seismic behaviour of the base isolated structures. |
