Abstract:Abstract-The problem of combining active damping with a purely passive isolation system, with hysteretic damping, to reduce possible pounding effects under near-fault ground motions is addressed. The used isolation system is a recently proposed one that is referred to as roll in cage (RNC) isolator. It has an integrated buffer mechanism to prevent excessive bearing displacements under strong seismic excitations. Therefore, possible pounding under such strong earthquakes will be within the bounds of RNC isolato… Show more
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