Driving risk of road vehicle shielded by bridge tower under strong crosswind

Yu, Helu; Wang, Bin; Li, Yongle; Zhang, Mingjin

doi:10.1007/s11069-018-3554-y

Cited by 13 publications

(5 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Two methods are commonly used to study the wind shielding effect of bridge tower: one is wind tunnel test [58][59][60], and the other is computational fluid dynamics [61][62][63]. The wind tunnel test involves the static train model and the moving train model.…”

Section: Sudden Change Effect Of Windsmentioning

confidence: 99%

A comprehensive review on coupling vibrations of train–bridge systems under external excitations

Xiang

Wang

et al. 2022

Rail. Eng. Science

Self Cite

View full text Add to dashboard Cite

In recent years, high-speed railways in China have developed very rapidly, and the number and span of the railway bridges are keeping increasing. Meanwhile, frequent extreme disasters, such as strong winds, earthquakes and floods, pose a significant threat to the safety of the train–bridge systems. Therefore, it is of paramount importance to evaluate the safety and comfort of trains when crossing a bridge under external excitations. In these aspects, there is abundant research but lacks a literature review. Therefore, this paper provides a comprehensive state-of-the-art review of research works on train–bridge systems under external excitations, which includes crosswinds, waves, collision loads and seismic loads. The characteristics of external excitations, the models of the train–bridge systems under external excitations, and the representative research results are summarized and analyzed. Finally, some suggestions for further research of the coupling vibration of train–bridge system under external excitations are presented.

show abstract

Section: Sudden Change Effect Of Windsmentioning

confidence: 99%

A comprehensive review on coupling vibrations of train–bridge systems under external excitations

Xiang

Wang

et al. 2022

Rail. Eng. Science

Self Cite

View full text Add to dashboard Cite

show abstract

“…Variable flows formed by the wind shields, along with the shielding effects of the bridge tower itself, make the wind field near the tower region complicated and unpredictable (Zhou, Q. and Zhu, L.D., 2020) and worthy of detailed investigation. For instance, Yu et al (2019) created a probability-based model to assess the risk to a vehicle experiencing gusty crosswinds in the wake of abridge tower. Numerical studies of a typical two-axle road vehicle illustrated that sudden changes in wind loads in the wake of a bridge tower significantly contributed to the occurrences of sideslip or overturning accidents.…”

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

View full text Add to dashboard Cite

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.

show abstract

“…Rocchi et al (2012) studied the influence of the wake of bridge tower effect on the driving safety of high-wing vehicles, and the vehicle-driver response was simulated. Yu et al (2019) established a closed-loop numerical model of driver-vehicle-crosswind (DVC), and the result shows that there is a possibility that the car could overturn or sideslip.…”

Section: Introductionsmentioning

confidence: 99%

Field measurement of wind shielding effect of bridge tower for wind-vehicle-bridge system

Xiang

Zhang

et al. 2022

Advances in Structural Engineering

Self Cite

View full text Add to dashboard Cite

Although the wind barrier was set near the bridge tower, more than 10 traffic accidents under crosswinds happen in the bridge tower area within 1 month of the opening operation of a cross-sea bridge. To investigate the wind shielding effect of the bridge tower, a field measurement scheme of wind-vehicle-bridge system, which is a step-by-step test method, was presented and performed on a long span cable-stayed bridge. Firstly, the horizontal profile of wind speed of bridge deck near bridge tower was obtained through the anemometers. Then, the dynamic response of the bridge was measured under the action of normal operating vehicle when the natural wind speed is low. Finally, the response of the moving car was measured when passing through bridge tower, and the wind speed was recorded simultaneously. The results show that the wind-vehicle-bridge system can be tested by step-by-step test method to understand the wind shielding effect of bridge tower. The displacement response of the bridge is still very small when two large trucks meet, and the coupling effect between the vehicle and the bridge is insignificant when a single car passes through the bridge tower. Due to a large porosity of the anti-collision guardrail, the wind speed at the height of 1 m from the bridge deck has changed dramatically when the car leaves the bridge tower on the windward and entering or leaving the bridge tower on the leeward. Among them, the leeward side change is more obvious, and the response of the leeward side vehicle is also greater. The suitable decrease of the anti-collision guardrail porosity in the bridge tower region will improve the running safety of vehicles.

show abstract

Driving risk of road vehicle shielded by bridge tower under strong crosswind

Cited by 13 publications

References 27 publications

A comprehensive review on coupling vibrations of train–bridge systems under external excitations

A comprehensive review on coupling vibrations of train–bridge systems under external excitations

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

Field measurement of wind shielding effect of bridge tower for wind-vehicle-bridge system

Contact Info

Product

Resources

About