Effects of turbulence on vortex-excited coupled vehicle-bridge systems: Wind tunnel investigation

IF 4.2 2区工程技术 Q1 ENGINEERING, CIVIL

Journal of Wind Engineering and Industrial Aerodynamics Pub Date : 2025-02-03 DOI:10.1016/j.jweia.2025.106020

Hao-Yang Li , You-Lin Xu , Ming-Shui Li , Le-Dong Zhu

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引用次数: 0

Abstract

An accurate assessment of driving comfort and safety of road vehicles on a long-span bridge subjected to vortex-induced vibration (VIV) is crucial for bridge managers to decide whether the bridge should be closed to traffic or not. However, the previous studies often overlook the effects of turbulence on coupled vehicle and bridge systems subjected to VIV although turbulence does exist on site. In this study, vortex-excited coupled truck-bridge deck models were tested in a big wind tunnel under smooth and turbulence flows. Vortex-induced response (VIR) and vortex-induced force (VIF) of the bridge deck and the aerodynamic forces on the truck were measured simultaneously. The effects of the turbulence on VIR and VIF of the bridge deck with the truck(s) placed on different lanes were explored. The effects of turbulence on the mean and peak aerodynamic forces as well as acceleration response of the truck on the vortex-excited bridge deck were also investigated. The results show that VIR and VIF of the bridge deck are significantly influenced by turbulence intensities and truck locations. The mean and peak aerodynamic forces as well as acceleration response of the truck also vary significantly with turbulence intensities and truck locations.

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来源期刊

Journal of Wind Engineering and Industrial Aerodynamics 工程技术-工程：土木

CiteScore

8.90

自引率

22.90%

发文量

306

审稿时长

4.4 months

期刊介绍： The objective of the journal is to provide a means for the publication and interchange of information, on an international basis, on all those aspects of wind engineering that are included in the activities of the International Association for Wind Engineering http://www.iawe.org/. These are: social and economic impact of wind effects; wind characteristics and structure, local wind environments, wind loads and structural response, diffusion, pollutant dispersion and matter transport, wind effects on building heat loss and ventilation, wind effects on transport systems, aerodynamic aspects of wind energy generation, and codification of wind effects. Papers on these subjects describing full-scale measurements, wind-tunnel simulation studies, computational or theoretical methods are published, as well as papers dealing with the development of techniques and apparatus for wind engineering experiments.