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This paper proposes a design methodology for a damping enhancement‐based seismic retrofitting of a damaged reinforced concrete (RC) model frame with a mass driver (MD) and magnetorheological (MR) damper. The MR‐MD is applied with preset constant current inputs and the structure + MR‐MD system is subjected to harmonic and seismic base excitations. Equivalent effective damping for a biviscous MR damper...
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