Numerical Simulation and Experimental Study of Aerodynamic Interference on Adjacent Three Separated Deck Bridges

被引：0
|
作者：
Zhang X. [1 ]
Yan Q. [1 ]
Jia B. [1 ]
Liu M. [1 ,2 ]
Yu X. [1 ]
机构：
[1] School of Civil Engineering and Transportation, South China University of Technology, Guangzhou
[2] State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2021年 / 49卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Adjacent bridge; Aerodynamic interference; Multiple deck; Wind tunnel test;
D O I：
10.12141/j.issn.1000-565X.210051
中图分类号：
学科分类号：
摘要：
The aerodynamic interference on the adjacent three separated deck bridges in different altitude difference ratios was investigated by CFD and is verified by the wind tunnel test. The altitude difference ratio (H/D0) is within the range of -2 and +2, where H is the difference of centroid height between the middle box beam and the two sides symmetrical composite girders and D0 is the height of the middle box. The numerical simulation results show that the downstream composite beams have an inhibition effect on the vortex shedding of the middle box beams in a certain range of height difference. At the actual spacing in project, the mean values of the aerodynamics of the adjacent three separated deck bridges are interfered with each other obviously and regularly in the range of H/D0 stu-died in this paper. The aerodynamic interference of middle box girder is the largest, that of the downstream girder takes second place, and that of the upstream girder is the least. © 2021, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：101 / 112
页数：11
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