On the aerodynamic loads when a high speed train passes under an overhead bridge
Journal article, 2020

The aerodynamic loads on the overhead bridge bottom surface induced by train passage are reported in this paper. Both moving model test and numerical simulation approaches at the 1:20 scale are used. The numerical work is validated through both mesh independence tests and comparison with experimental data. Typical pressure variation curves are plotted and compared with previous studies. The peak pressure values’ dependence on the Reynolds number is considered through four sets of experiments with different train running speeds. The peak pressure coefficient distribution law for the bridge bottom surface is presented. Differences in the pressure distribution in different bridge bottom areas are explained based on more detailed flow field information. The influence of the bridge height on the aerodynamic load magnitude and time interval is presented. Moreover, the application of the CEN Standard to practical engineering issues is discussed.

Aerodynamic loads

Moving model test

Numerical simulation

Overhead bridge

Author

Xifeng Liang

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

Central South University

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Xiao Bai Li

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Central South University

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

Guang Chen

Central South University

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Bo Sun

Central South University

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Zhe Wang

Zhaoqing University

Xiaohui Xiong

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Central South University

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

Jing Yin

Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications

Ming Zan Tang

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

Central South University

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Xue Liang Li

Joint International Research Laboratory of Key Technology for Rail Traffic Safety

Central South University

National & Local Joint Engineering Research Center of Safety Technology for Rail Vehicle

Sinisa Krajnovic

Chalmers, Mechanics and Maritime Sciences, Fluid Dynamics

Journal of Wind Engineering and Industrial Aerodynamics

0167-6105 (ISSN)

Vol. 202 104208

Subject Categories

Applied Mechanics

Vehicle Engineering

Fluid Mechanics and Acoustics

DOI

10.1016/j.jweia.2020.104208

More information

Latest update

3/31/2021