scholarly journals Computational Fluid Dynamics for Wind Resistant Design of Long-span Bridges

2018 ◽  
Vol 44 (1) ◽  
pp. 13-20
Author(s):  
Hiroki SUGIYAMA ◽  
Masakazu KAWASAKI ◽  
Takumi MORO ◽  
Akihiko NAKAYAMA ◽  
Hiroshi NODA
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Long Span Bridges ◽  
Long Span

scholarly journals Wind-Induced Phenomena in Long-Span Cable-Supported Bridges: A Comparative Review of Wind Tunnel Tests and Computational Fluid Dynamics Modelling

2021 ◽  
Vol 11 (4) ◽  
pp. 1642
Author(s):  
Yuxiang Zhang ◽  
Philip Cardiff ◽  
Jennifer Keenahan
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Wind Tunnel ◽  
Careful Analysis ◽  
Wind Effects ◽  
Wind Tunnel Tests ◽  
Long Span Bridges ◽  
Long Span ◽  
Comparative Review ◽  
Dynamics Modelling

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.

Research on Aerodynamic Impacts of Snow on Bridge Decks

2013 ◽  
Vol 774-776 ◽  
pp. 68-72 ◽  
Author(s):  
Qing Song Duan ◽  
Cun Ming Ma ◽  
Bin Xie
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Bridge Decks ◽  
Aerodynamic Characteristics ◽  
Two Phase ◽  
Snow Load ◽  
Long Span Bridges ◽  
Long Span ◽  
Fluid Theory ◽  
Phase Fluid

With the development of economy and technology, many long span bridges have been constructed. However, oversize thickness and long duration of snow on these long span bridges might lead to security issues. The computational fluid dynamics software FLUENT is employed to simulate the snow effect on the bridges. According to the two-phase fluid theory, the relationship between air phase and snow phase is one-way coupling. The corresponding changes of snow load on the bridge deck under the action of strong winds are studied in this paper and the comparative analysis about aerodynamic impacts before and after the snow are conducted as well. According to the results, the snow has notable influence on the aerodynamic characteristics of bridge decks. Keywords: computational fluid dynamics; two-phase fluid theory; snow load; aerodynamics;

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