Wind-Induced Vibration Mitigation in Tall Buildings Using the Tuned Mass-Damper-Inerter

摘要

In this paper, the classical linear tuned mass damper (TMD) is coupled with an inerter, a two-terminal device resisting the relative\udacceleration of its terminals, in various tuned mass-damper-inerter (TMDI) topologies to suppress excessive wind-induced oscillations in\udtall buildings causing occupant discomfort. A parametric numerical study is undertaken involving a top-floor-TMD-equipped planar frame\udaccurately capturing the in-plane dynamic behavior of a 74-story benchmark building exposed to a quasi-stationary spatially correlated windforce\udfield accounting for vortex shedding effects in the across-wind direction. It is found that the TMDI reduces peak top-floor acceleration\udmore effectively than the TMD by considering smaller attached-mass values, and TMDI topologies in which the inerter spans more stories in\udlinking the attached mass to the host structure. Moreover, the inclusion of the inerter dramatically reduces the TMD stroke, and it has been\udverified that the magnitude of the developing inerter forces can be readily accommodated by the host structure. Pertinent illustrative examples\udare included showcasing that the TMDI meets code-prescribed serviceability design requirements for new tall buildings using significantly\udsmaller attached mass compared with the TMD, and that inerter devices can be used to upgrade the performance of existing TMD-equipped\udtall buildings without changing the attached mass.