Using tuned mass damper inerter to mitigate vortex-induced vibration of long-span bridges: Analytical study

Dynamic performance is an important consideration in long-span bridge design. Owing to its flexibility and low damping, various types of vibration from different sources of excitation could occur d...

Vibration Mechanisms and Controls of Long-Span Bridges: A Review

Vibration control of vortex-induced vibrations of a bridge deck by a single-side pounding tuned mass damper

Aerodynamic damping models for vortex-induced vibration of a rectangular 4:1 cylinder: Comparison of modeling schemes

A significant vortex-induced vibration (VIV) was observed in a suspension bridge under a wind velocity of approximately 6 and 7 m/s, and with a maximum amplitude that exceeded the serviceability li...

Cause investigation of high-mode vortex-induced vibration in a long-span suspension bridge

Interference effect on vortex-induced vibration in a parallel twin cable-stayed bridge

A stabilizing cable (SC), used for mitigating buffeting vibration in a cantilevered structure of a cable-stayed bridge during construction, is normally installed with pretension. When a situation arises where only SCs are allowed in side spans, heavy counterweights in the center span are required to satisfy the force balance. The mitigating effect of unpretensioned cables was investigated using a wind tunnel in an attempt to eliminate the need for counterweights. An elastic wind tunnel test at a scale of 1/125 was prepared, and a series of comparative wind tunnel tests were performed. The vertical displacement at the cantilever tip of the center span and the horizontal displacement at the top of the pylon were measured, and stabilizing effects were then estimated. An unpretensioned cable produces a nonlinear motion because of a loss of tension. A quantitative evaluation of the stabilizing effect of an unpretensioned stabilizing situation indicated that the counterweight could be removed only when ...

Kwon-Taek Kim

Papers

Interference effect on vortex-induced vibration in a parallel twin cable-stayed bridge

Performance of Unpretensioned Wind Stabilizing Cables in the Construction of a Cable-Stayed Bridge