PASSIVE CONTROL OF SUPER HIGH-RISE BUILDINGS USING HYSTERIC TUNED MASS DAMPER

Abstract

 This paper proposes design method for a hysteric dynamic absorber to reduce seismic response in super high-rise buildings. Friction, rigid-plastic and bi-linear hysteresis type are employed for the absorber. Optimal conditions for the initial stiffness, the post-yielding stiffness and the yielding strength of the damper are estimated by numerous time history analyses using an equivalent two degree of freedom systems. Finally, effectiveness of seismic mitigation for super high-rise buildings having wide variety of natural periods is confirmed through a comparison of a conventional linear viscous absorber.