Shielding and internode effects of truss bridge on the aerodynamic characteristics of high-speed train under crosswinds

Wang, Ming; Fu, Peiyao; Zhou, Yan-Xi; Li, Zhiguo; Li, Xiaozhen

doi:10.1016/j.jweia.2021.104831

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…CFD simulations can be used to perform detailed analysis of the flow field and can provide insights that are difficult to obtain experimentally. CFD has been widely adopted to investigate vehicle-bridge interaction problems (He et al, 2022;Sterling et al, 2010;Yao et al, 2020), in particular the effects of crosswinds on vehicles (Baker et al, 2009;Wang et al, 2013Wang et al, , 2022. However, very little research has been done on simulating the aerodynamic behaviour of vehicles passing by bridge towers, which has the potential to improve our understanding of vehicle stability and safety on bridges in high winds.…”

Section: Introductionmentioning

confidence: 99%

Full-scale aerodynamic study on the effects of tower wind shields and road-sign gantries on passing high-sided vehicles in the tower region at the Queensferry Crossing

Zhu,

McCrum,

Keenahan

2024

Advances in Structural Engineering

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A novel investigation into the impact of the tower road-sign gantry and the tower shielding on double-decker buses and trucks passing by the bridge tower based on a previously validated full-scale CFD model. Two sets of simulations were conducted for comparison of aerodynamic force conditions of vehicles as they pass by the bridge tower: first group of simulations were performed including and excluding the road-sign gantry; and the second group include and exclude the tower shielding. Conditions in different traffic lanes (one on leeward side and two on windward side) considered. The effect of changes in wind yaw angle are also considered. Mechanism exploration on the variation of vehicle aerodynamic force conditions was made based on the numerical visualization of wind velocity field and pressure field. Novel results suggest that the road-sign gantry provides a sheltering effect in some circumstances, but a destabilizing effect in others. In addition, the tower shielding shows significant impact on reducing aerodynamic forces and sudden force changes of the high-sided vehicles while they are passing by the bridge tower.

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