Abstract
Engineers, architects, planners and designers must carefully consider the effects of wind in their work. Due to their slender and flexible nature, long-span bridges can often experience vibrations due to the wind, and so the careful analysis of wind effects is paramount. Traditionally, wind tunnel tests have been the preferred method of conducting bridge wind analysis. In recent times, owing to improved computational power, computational fluid dynamics simulations are coming to the fore as viable means of analysing wind effects on bridges. The focus of this paper is on long-span cable-supported bridges. Wind issues in long-span cable-supported bridges can include flutter, vortex-induced vibrations and rain–wind-induced vibrations. This paper presents a state-of-the-art review of research on the use of wind tunnel tests and computational fluid dynamics modelling of these wind issues on long-span bridges.
Highlights
Bridge aerodynamics is a multidisciplinary field which considers the interaction between wind flows in the atmospheric boundary layer and bridges
In addition to the computational cost, Computational Fluid Dynamics (CFD) simulations generate massive amounts of data, which makes postprocessing challenging. The application of both wind tunnel tests and CFD simulations in the study of bridge aerodynamic and aeroelastic problems are reviewed
Recent wind tunnel tests and CFD simulations in the study of aeroelastic and aerodynamic instabilities of long-span cable-supported bridges have been reviewed
Summary
Bridge aerodynamics is a multidisciplinary field which considers the interaction between wind flows in the atmospheric boundary layer and bridges. For long-span bridges, Fujino and Siringoringo [1] emphasise that wind is the most critical source of vibrations. This is because long-span bridges often have a long central span (for example, the Akashi Kaikyo Bridge has a central span of 1991 m), and are slender and vulnerable to the wind-induced vibrations. The main focus of this paper is to review the state-of-the-art experimental wind tunnel and numerical CFD methods applied in the area of long-span cable bridges. Focus is given to the three key concerns around wind effects in long-span cable bridges which will be discussed, namely: flutter, vortex-induced vibrations (VIVs) and rain–wind-induced vibrations
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