Using Friction-Yielding Damper CAR1 to Seismic Retrofit a Two-Story RC Building: Numerical Application

In the present work attention is focused on friction-yielding damper CAR1 (first prototype of Control-Absorb-Retain damper), which belongs to passive energy dissipation systems. This consists very simple materials; it does not need be accomplished in heavy industry so enables its use both developing and undeveloped countries. paper presents compares two alternative solutions with seismic retrofit an existing two-story reinforced-concrete (RC) structure a moment-resisting frame located Greece constructed 1979 no longer meets requirements current anti-seismic regulations. A nonlinear static pushover analysis performed assess performance framed building under different levels shaking (“Life Safety” “Collapse”). The carried out x y directions. retrofitting only provides base shear load up 149.2% 135.6% for first second redesign but also protects steel diagonal braces from buckling. appropriate characteristics dampers has been selected wide variety choices strengthening level can easily adjusted or modified during years based selection modification number, dimensions, elastoplastic properties blades.