Using a Tuned-Inerto-Viscous-Hysteretic-Damper (TIVhD) for vibration suppression in multi-storey building structures

Abstract This paper explores the use of a novel tuned-inerto-viscous-hysteretic-damper (TIVhD) for reducing seismic response multi-storey building structures. The TIVhD is an inerter-based damper device consisting linear hysteretic connected in series with inerto-viscous damper. layout similar to that tuned-inerter-hysteretic-damper (TIhD) additional viscous damping element parallel inerter. design motivated by fact most inerter designs cannot completely remove parasitic due friction, fluid compression, etc. Moreover, considered be more realistic approach when material present. In this paper, installed between ground and first-storey tuned firstly assumed coefficient zero. Then other three parameters are optimised following tuning procedure TIhD based on fixed-point theory fine-tuning targeting first vibration mode structure. optimum finally obtained using two scenarios: (1) amplifying its stiffness while keeping inertance constant; (2) constant. Both scenarios aiming at same reduction level given TIhD. Finally, effectiveness structural demonstrated both harmonic base excitation cases time domain. has been made possible newly developed domain via Hilbert transform reversal technique.