Dynamic performance-based assessment for tied-arch bridges subjected to heavy multi-axial tractor-trailers

Peng Yuan, C. S. Cai, Kai Liu, Xiangjie Wang & Lu Ke
With rapid industrial development, the overloading of bridges caused by heavy multi-axle vehicles has become a critical problem worldwide. This work conducts a performance-based evaluation for tied-arch bridges subjected to heavy multi-axle vehicles, and a prediction function of the dynamic impact factor (DIF) for tied-arch bridges is proposed considering the bridge frequency, vehicle speeds, and road quality level. Specifically, the main parameters affecting the bridge response were first identified theoretically using a simplified multi-axle vehicle-bridge...
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