车-桥耦合振动2019年度研究进展

车辆运行于桥梁上，车辆与桥梁之间相互作用、相互影响，称为车-桥耦合振动。车-桥耦合振动理论为桥梁设计、线路运营、维护及管理提供了理论基础、分析方法和评估手段，具有重要的工程应用价值。自20世纪起，众多学者已经开展了大量卓有成效的研究工作。近年来，中国交通运输行业飞速发展，稠密的交通网、紧张的运能、复杂的线路条件等因素对传统的车-桥耦合振动理论提出了新的挑战，也催生了相关先进理论技术的发展。为了促进该领域后续更加全面深入的基础研究，对轨道不平顺作用下的车-桥耦合振动、轨道不平顺作用下的车-桥耦合随机振动、风-车-桥耦合振动、地震-车-桥耦合振动、磁浮交通车辆-轨道梁耦合振动等5个方面在2019年的研究进展进行了总结，并对研究热点和展望进行了梳理。

State-of-the-art review of vehicle-bridge interactions in 2019

When a vehicle runs on a bridge, the vehicle and the bridge will be mutually influenced in the dynamic behavior, which is called vehicle-bridge interactions. The vehicle-bridge coupled vibration theory can provide the theoretical basis, analysis method and assessment technique for bridge design, line operation, maintenance and management, and it is of important engineering application value. Many scholars have carried out a lot of relevant researches since the 20th century. At present, China''s transportation industry has developed rapidly. Conventional vehicle-bridge interaction dynamics are challenged by the dense transportation network, tight transportation capacity, complicated line conditions, etc. Thus, the related theory and technique are being and further developed. This paper summarizes the progress and advances of the vehicle-bridge interaction field in 2019, including the vehicle-bridge interaction model under track irregularity, vehicle-bridge random vibrations under track irregularity, wind-vehicle-bridge coupled vibrations, earthquake-vehicle-bridge coupled vibrations, and maglev vehicle-bridge coupled vibrations. Furthermore, the research hotspots and prospects are provided. The work is expected to promote more comprehensive and in-depth basis researches.