An overview of vortex-induced vibration(VIV)of bridge decks

A brief overview of vortex-induced vibration(VIV)of circular cylinders is first given as most of VIVstudies have been focused on this particular bluff cross-section.A critical literature review of VIV of bridge decks thathighlights physical mechanisms central to VIV from a renewed perspective is provided.The discussion focuses on VIVofbridge decks from wind-tunnel experiments,full-scale observations,semi-empirical models and computational fluidsdynamics(CFD)perspectives.Finally,a recently developed reduced order model(ROM)based on truncated Volterraseries is introduced to model VIVof long-span bridges.This model captures successfully salient features of VIVat“lockin”and unlike most phenomenological models offers physical significance of the model kernels.