铁道科学与工程学报2025，Vol.22Issue(5)：1899-1911,13.DOI:10.19713/j.cnki.43-1423/u.T20241580
横风作用下高速列车通过多跨铁路斜拉桥的行车性能分析
Performance analysis of high-speed trains passing through a multi-span railway cable-stayed bridge under cross winds
摘要
Abstract
Railway transportation needs to ensure the safety and comfort of train driving.When passing through large-span bridges,strong wind often causes wind-induced vibration to bridges.At the same time,the traveling train and bridge can produce a certain amount of vibration,and they can form a unique wind-vehicle-bridge coupling effect,which influences the driving safety and comfort performances.To investigate this effect,this paper took a great-width road-rail same-story multi-span cable-stayed bridge along the coast of Guangdong Province,China.Using an eight-car formation ICE3 train as the research object,the aerodynamic coefficients of the main beam and the train were obtained through wind tunnel tests.The fluctuating wind field was simulated by the harmonic synthesis method.Subsequently,the software ANSYS and SIMPACK were used for simulations to establish a coupled vehicle-track-bridge vibration analysis model under cross-wind action.The effect of wind load on the coupled vehicle-bridge vibration was analyzed,and the dynamic responses of the vehicle-bridge system under different train moving speeds and average wind speed were studied.The analysis results show that for this great-width road-rail same-story multi-span cable-stayed bridge,the higher the train speed is,the worse the safety and comfort of the train are,especially for the middle train.Although the wheel load reduction rate,wheelset lateral force,derailment coefficient and overturning coefficient of the middle train increase by 96.9%,244.4%,206.0%and 154.2%,respectively when the train speed increases from 150 km/h to 250 km/h,they still meet the code requirements.Meanwhile,the transverse and vertical acceleration as well as the transverse and vertical Sperling indices of the middle train increase by 95.4%,67.7%,19.7%and 14.8%,respectively.When the wind speed increases from 0 to 30 m/s,the corresponding increases in the wheel load reduction rate,wheelset lateral force,derailment and overturning coefficients of the middle train are 55.8%,203.8%,172.8%,and 45.1%,respectively.At this moment,the wheelset lateral force of the middle train will exceed the code limit and the train speed should be reduced.The transverse and vertical acceleration and vertical Sperling index of the middle train increase by 34.3%,91.8%and 10.1%,respectively,while the transverse Sperling index shows little sensitivity to wind speed changes.In addition,the midspan acceleration of the bridge increases significantly with the increasing train and wind speed.关键词
超大桥宽/公铁同层/风-车-桥耦合振动/行车安全/行车舒适性Key words
great bridge width/road-rail same-story/wind-vehicle-bridge coupling vibration/train-driving safety/train-driving comfort分类
交通运输引用本文复制引用
张威振,胡迎新,曾世钦,谭凌飞..横风作用下高速列车通过多跨铁路斜拉桥的行车性能分析[J].铁道科学与工程学报,2025,22(5):1899-1911,13.基金项目
中南大学-湖南中大设计院有限公司工程建设设计信息化技术研发中心开放课题(KJ-2021-03) （KJ-2021-03）
中国中铁股份有限公司科技开发计划课题(2021-专项-01) （2021-专项-01）
中铁工程设计咨询集团有限公司科技开发课题(研2021-2) （研2021-2）
