为了解桥梁水动力学研究发展动态,在总结其研究内容、方法和成果的基础上更好开展后续研究,本文从波流作用、基础局部冲刷、流固耦合、极端海洋环境多灾害作用等着手,对2020年度发表的相关文献进行分类、总结和评述。综述发现：桥梁水动力学的研究热点主要集中在极端波浪、水流作用及波流共同作用模型、桥墩局部冲刷影响因素及深度预测、地震作用下深水桥梁流固耦合、极端海洋环境多灾害作用等方面。通过梳理现有研究不足,提出如下亟待开展的研究方向包括：波流极端环境下的结构流固耦合、桥墩冲刷监测和防护、智能信息化的桥梁水动力灾害预见性及多灾害研究。期待与相关学者共同努力,为桥梁水动力学发展做出积极的贡献。

To understand the development trend of the research of bridge hydrodynamics and on the basis of summarizing its research contents, methods and achievements, the follow-up research will be carried out better, this paper reviews the recent literatures published in 2020 from the aspects of wave current effect, local scour of foundation, fluid solid coupling, multi disaster effect of extreme marine environment, etc. It is found that the research hotspots of bridge hydrodynamics mainly focus on the models of an extreme wave, current action, and wave-current interaction, the influence factors and depth prediction of pier local scour, the fluid-structure coupling of the deep-water bridge under earthquake action, the combined effort of wind and wave Disaster assessment and risk analysis of bridge in an extreme marine environment, response analysis and optimization design of long-span floating bridge structure. By combing the shortcomings of the existing research, the following urgent research directions are proposed: structural fluid-structure coupling in extreme wave and current environment, pier erosion monitoring and protection, intelligent and information-based bridge hydrodynamic disaster prediction, and multi disaster research. It is expected to make joint efforts with relevant scholars to contribute to the development of bridge hydrodynamics.

TU375.4

国家自然科学基金项目（面上项目，重点项目，重大项目）；宁波市科技创新重大专项