H & T PUBLICATION Research in Civil and Environmental Engineering 2345-3109 2 3 2014 THE EFFECT OF DUCTILITY ON RESPONSE MODIFICATION FACTORS OF TADAS FRAMES 80 95 EN Mussa Mahmoudi Mohammad Ghasem Abdi Journal Article <p>One of the mechanism, used in order to provide positive control of structural vibration in the wake of earthquakes is hysteretic damper which dissipates the energy exerted into a structure. The TADAS (triangular-plate added damping and stiffness) device is one of them with elasto-plastic behavior. In this paper, the effect of ductility on the response modification factors of the frames equipped with TADAS dampers has been studied. For that matter, multi-story buildings were considered. The nonlinear incremental dynamic analysis and linear dynamic analysis have been performed using OpenSees software. In this research, seismic response modification factors for moderate and special moment resisting frames (MMRFs & SMRFs) with TADAS devices (T-MMRFs & T-SMRFs) and without them has been determined separately. The results showed that the response modification factors for TADAS frames were higher than the frames without TADAS devices. It was also found that the response modification factors for TSMRFs were higher than T-MMRFs and also the ductility of structures has greater effect on the response modification factors of the frames with and without TADAS devices.</p>

http://www.htpub.org/article/Research-In-Civil-And-Environmental-Engineering/vol/2/issue/3/articleid/546