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논문 기본 정보

자료유형
학술저널
저자정보
Han, Wanshui (Department of Bridge Engineering, Chang'an University) Liu, Huanju (Department of Bridge Engineering, Chang'an University) Wu, Jun (Department of Bridge Engineering, Chang'an University) Yuan, Yangguang (Department of Bridge Engineering, Chang'an University) Chen, Airong (Department of Bridge Engineering, Tongji University)
저널정보
테크노프레스 Wind & structures Wind & structures 제24권 제5호
발행연도
2017.1
수록면
405 - 430 (26page)

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초록· 키워드

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The aerodynamic characteristics of vehicles are critical to assess vehicle safety and passenger comfort for vehicles running on long span bridges in a windy environment. However, in previous wind-vehicle-bridge (WVB) system analysis, the aerodynamic interference between the vehicle and the bridge was seldom considered, which will result in changing aerodynamic coefficients. In this study, the aerodynamic coefficients of a high-sided truck on the ground (ground case) and a typical bridge deck (bridge deck case) are determined in a wind tunnel. The effects of existent structures including the bridge deck and bridge accessories on the high-sided vehicle's aerodynamic characteristics are investigated. A three-dimensional analytical framework of a fully coupled WVB system is then established based on the finite element method. By inputting the aerodynamic coefficients of both cases into the WVB system separately, the vehicle safety and passenger comfort are assessed, and the critical accidental wind speed for the truck on the bridge in a windy environment is derived. The differences in the bridge response between the windward case and the leeward case are also compared. The results show that the bridge deck and the accessories play a positive role in ensuring vehicle safety and improving passenger comfort, and the influence of aerodynamic interference on the response of the bridge is weak.

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