Experimental and numerical evaluation of the wind load on the 516 Arouca pedestrian suspension bridge

被引:17
作者
Tadeu, Antonio [1 ,4 ]
da Silva, F. Marques [2 ]
Ramezani, Bahareh [1 ]
Romero, Antonio [3 ]
Skerget, Leopold [1 ]
Bandeira, Filipe [1 ]
机构
[1] Itecons Inst Res & Technol Dev Construct Energy E, Rua Pedro Hispano, P-3030289 Coimbra, Portugal
[2] LNEC Natl Lab Civil Engn, Struct Dept, Av Brasil 101, P-1700066 Lisbon, Portugal
[3] Univ Seville, Escuela Tecn Super Ingn, Camino Descubrimientos S-N, ES-41092 Seville, Spain
[4] Univ Coimbra, Dept Civil Engn, Fac Sci & Technol, ADAI LAETA, Polo 2,Rua Luis Reis Santos, P-3030788 Coimbra, Portugal
关键词
Computational fluid dynamics; Wind tunnel tests; Numerical results; Wind load;
D O I
10.1016/j.jweia.2021.104837
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The present work analyses the wind load effects on the 516 Arouca bridge, the world's longest pedestrian suspension bridge in 2020. Computational fluid dynamics (CFD) was used to model a range of wind angles of attack between - 8 degrees and +8 degrees. The simulations were performed by solving the steady-state Reynolds averaged NavierStokes (RANS) equations with the k-omega shear stress transport (SST) model. The fluid domain size was analysed by comparing the fluid flow behaviour for three different downstream sizes. It was shown that the downstream flow is not greatly affected by the bridge body due to the high opening surfaces of the bridge. Therefore, the most appropriate domain size considering the computation time was selected. The simulations were carried out for different bridge configurations to determine the influence of the upper guard of the tray deck and the suspended cables on the generated loads. The numerical results were validated by performing different wind tunnel tests using a reduced scale prototype. The predicted aerodynamic characteristics showed good agreement with the experimental results.
引用
收藏
页数:13
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