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<p>Corridor woven arch bridges hold significant cultural value but are often threatened by flood. This study employs computational fluid dynamics (CFD) to quantify the effects of water level and flow velocity on force of the bridge. Overturning and sliding risks are evaluated, and the effectiveness of removing the weather-boards and adding weight to the bridge is assessed. 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. This study provides a scientific basis for flood resistance assessment and preventive protection of corridor woven arch bridges.</p>

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Research on flood resistance performance of traditional corridor woven arch bridges

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月7日

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  • Xinran Li,
  • Qing Chun,
  • Yu Yuan,
  • Yidan Han

摘要

Corridor woven arch bridges hold significant cultural value but are often threatened by flood. This study employs computational fluid dynamics (CFD) to quantify the effects of water level and flow velocity on force of the bridge. Overturning and sliding risks are evaluated, and the effectiveness of removing the weather-boards and adding weight to the bridge is assessed. 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. This study provides a scientific basis for flood resistance assessment and preventive protection of corridor woven arch bridges.