Vibration mitigation of long-span bridges with damped outriggers

• Published in: Engineering structures Vol. 271; p. 114873
• Main Authors: Chen, Lin, Liu, Zhanhang, Nagarajaiah, Satish, Sun, Limin, Zhao, Lin, Cui, Wei
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 15.11.2022; Elsevier BV
• Subjects: Bridge towers; Complex modal analysis; Damped outrigger; Dampers; Damping; Damping ratio; Finite element method; Girder bridges; Long-span bridges; Stiffness; Suspension bridges; Vibration; Vibration control; Vibration damping; Vibrations; Vortex-induced vibrations; Damping; Vortex-induced vibrations; Complex modal analysis; Long-span bridges; Damped outrigger

Long-span bridges have low vibration frequencies and small intrinsic damping, and hence are subjected to large-amplitude vibrations, e.g., vortex-induced vibrations (VIVs), which jeopardize the serviceability and safety of the bridge structures. This study proposes a novel concept to supplement damp...