深水浮式桥梁研究应用进展

深水浮式桥梁是一种依靠水浮力承载上部结构自重和活载的桥梁结构,在宽水面、高水深、弱地基水域的跨越工程中具有显著的应用优势。文章首先对深水浮式桥梁的发展历史和结构体系进行回顾和总结。随后结合近年来国内外相关研究情况,从结构动力响应、实桥监测、浮式深水基础、锚索振动疲劳等方面较为全面地综述了深水浮式桥梁的研究和应用进展。通过对已有研究成果深入分析,重点讨论深水浮式桥梁研究中存在的问题和难点。最后对深水浮式桥梁的发展方向进行了展望,指出未来应重点在动力响应机理、结构模型试验、合理结构体系、复合材料应用、工程风险评估等方面开展研究工作,以推动深水浮式桥梁的工程应用。

Advances in research and application of deep-water floating bridges

The deep-water floating bridge is a kind of bridge structure which bears the dead weight and live load with buoyancy. In this work, the history of floating bridge is first reviewed, and the structural systems of floating bridges are summarized. Furthermore, the researches and applications of deep-water floating bridges are introduced by focusing on the structural dynamic response, bridge field monitoring, floating deep-water foundation, as well as vibration and fatigue of anchor cable. Based on the comprehensive analysis of existing researches, the problems and challenges in research of deep-water floating bridge are highlighted. Finally, the development direction of deep-water floating bridge is proposed with emphasis on the dynamic response mechanism, structural model test, structural system optimization, application of composite materials, and engineering risk assessment, in order to promote the practical application of deep-water floating bridge.