Evaluation of Ride Comfort and Driving Safety for Moving Vehicles on Slender Coastal Bridges

[+] Author and Article Information
Jin Zhu

Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269

Wei Zhang

Assistant Professor, Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269

Mengxue Wu

Lecturer, Department of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu, Sichuan 610500, China

1Corresponding author.

ASME doi:10.1115/1.4039569 History: Received October 11, 2017; Revised February 28, 2018


Evaluating the driving safety of moving vehicles on slender coastal bridges as well as the bridge safety are important to provide supporting data to make decisions on continuing or closing the operations of bridges under extreme weather conditions. However, such evaluations could be complicated due to the complex dynamic interactions of vehicle-bridge-wind-wave system. The present study proposes a comprehensive evaluation methodology on vehicle ride comfort and the driving safety on the slender coastal bridges subject to vehicle, wind, and wave loads. After a brief introduction of the vehicle-bridge-wind-wave coupling dynamic system and obtaining the dynamic responses of the vehicles, the vehicle ride comfort is evaluated using the advanced procedures as recommended in the ISO 2631-1 standard based on the overall vibration total value (OVTV). The vehicle driving safety is analyzed based on two evaluation criteria, i.e., the roll safety criteria (RSC) and the sideslip safety criteria (SSC), through the vehicle contact force responses at the wheels. Finally, the proposed methodology is applied to a long-span cable-stayed bridge for vehicle ride comfort and driving safety evaluation.

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