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Best Practices for Road Weather Management Version 2.0

Title:

Framework of Vehicle-Bridge-Wind Dynamic Analysis

Abstract:

This paper presents a framework of dynamic analysis of coupled three-dimensional vehicle?bridge system under strong winds. A general formulation of this system is introduced to simulate a series of vehicles consisting of different numbers and different types of vehicles running on bridges under hurricane-induced strong winds. Effects of driving speeds on the dynamic performance of the vehicles as well as the bridge are discussed. It is found that the driving speeds mainly affect the vehicle's vertical relative response while they have insignificant effect on the rolling response of vehicles. Vehicle's absolute response is dominated by the bridge response when wind speed is high, while it is dominated by road roughness when the wind speed is low. Detailed accident analysis of vehicles on bridges under strong winds will be reported in an accompanying paper.

Source(s):

Journal of Wind Engineering and Industrial Aerodynamics, Louisiana State University, Department of Civil and Environmental Engineering, For an electronic copy of this resource, please direct your request to WeatherFeedback@dot.gov.

Date: 2004

Author:

Cai, Chen

Keywords:


Wind
Hurricane/Tropical storm
Speed
Crashes
Safety

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