The near fault (NF) line waves send out signal envelopes that oscillate over lengthy periods of time with periodic impulses. Like train bridges, train tracks demonstrate comparable track-bridge (TB) motion dynamics. Using these coupling dynamics, are the high-speed train-track-bridge (HSTTB) system designs sensitive to those parameters? This research incorporates a Finite Element Analysis (FEA) technique developed for simulating the dynamic reactions of the coupled TB system when faced with simultaneous NF lateral and vertical ground motions (GMs). For the first time, data from the pre-commissioning field testing of the Beijing-Shanghai high-speed train are utilized to validate the Train-Track-Bridge Dynamic Analysis (TTBDA) test. As a matter of fact, the current research has concentrated on the running safety of the high-speed train's operations, as well as the possible derailment mechanism of the high-speed train, in light of the far-field (FF) earthquakes. This analysis reveals that the NF GMs in the bridge structure's seismic reactivity are considerable. Many high-speed train derailments are due to frequent wheel displacement, elevated wheels, and significant lateral motion. The data discovered in the field may give engineers vital information for calculating relevant situations and railroad engineering projects.

近故障 (NF) 线波发出的信号包络会随着周期性脉冲在较长时间段内振荡。与火车桥一样，火车轨道也表现出类似的轨道桥 (TB) 运动动力学。使用这些耦合动力学，高速列车-轨道-桥梁 (HSTTB) 系统设计是否对这些参数敏感？该研究采用了一种有限元分析 (FEA) 技术，该技术用于模拟耦合 TB 系统在同时面临 NF 横向和垂直地面运动 (GM) 时的动态反应。首次利用京沪高铁试运行现场试验数据对列车-轨道-桥梁动态分析（TTBDA）试验进行验证。事实上，目前的研究主要集中在高速列车的运行安全上。鉴于远场 (FF) 地震，S 的运行以及高速列车可能的脱轨机制。该分析表明，桥梁结构的地震反应性中的NF GMs是相当大的。许多高速列车脱轨是由于车轮频繁移位、车轮抬高和明显的横向运动造成的。在现场发现的数据可以为工程师提供计算相关情况和铁路工程项目的重要信息。