earticle

영어

In this study, nonlinear static and dynamic seismic response analyses were performed with two reinforced concrete partial frame specimens having lower shear walls. One of them was retrofitted with a novel steel damper system. The steel damper system was modeled as a shear element, and its hysteresis model was assumed as a tri-linear model without degrading of stiffness by unloading utilizing the hysteresis model for steel materials. On the other hand, the members of beams and columns were modelled as line elements with springs representing nonlinear behaviors and the lower shear wall was modelled as a brace element with equivalent section characteristics with it. The results of both static and dynamic analyses were considered to be similar with those by experiments.