Research on flood resistance performance of traditional corridor woven arch bridges

This study investigates the load distribution and failure risks of traditional corridor woven arch bridges under various flood conditions, and evaluates the effectiveness of commonly used flood resistance measures. It employs computational fluid dynamics (CFD) to quantify the effects of water level and flow velocity on force of the bridge.

The results show that rising water levels greatly increase the bridge's drag force. Higher flow velocity leads to negative lift growth, which is positively correlated with water level. When water level exceeds the deck, overturning risk arises, and removing the weather-boards is recommended. Corridor bridges are more prone to sliding failure. Both measures are recommended when the water level exceeds the deck, while adding weight to the bridge is sufficient at lower water levels.