车-桥耦合振动的主要研究内容包括轨道不平顺作用下的车-桥耦合振动及随机振动、风-车-桥耦合振动、地震-车-桥耦合振动、新型轨道车辆-轨道梁耦合振动等方面。当前,我国铁路桥梁建设面临更大跨度、高速度、高舒适度等新的挑战,在风荷载及列车荷载等外部激励作用下,车-桥间相互作用越发显著。如何准确预测实际复杂风环境下车-桥耦合系统动力响应及高速列车的行车走行性,并为桥梁设计、线路运营、维护及管理提供技术指导,成为2020年度车-桥耦合振动领域的研究热点和发展趋势。

The main research contents of vehicle-bridge coupled vibration include vehicle-bridge coupled vibration and random vibration under the effect of track irregularity, wind-vehicle-bridge coupled vibration, earthquake-vehicle-bridge coupled vibration, new rail vehicle-track beam coupling Vibration and other aspects. At present, the construction of railway bridges in China is facing new challenges such as larger spans, high speeds, and high comfort levels. Under external excitations such as wind loads and train loads, the vehicle-bridge interaction is becoming more and more significant. How to accurately predict the dynamic response of the vehicle-bridge coupling system and the running performance of high-speed trains in the actual complex wind environment, and provide technical guidance for bridge design, line operation, maintenance and management, and become a research hotspot and development trends in the field of vehicle-bridge coupled vibration in 2020.

国家自然科学基金(51878565)