Vibration Characteristics Study Of The Platform Structure In The Elevated Bridge Station When High Speed Vehicles Pass Through

Based on the continuous development of China’s high-speed railway and railway elevated passenger station, the security of station structure and the comfort of passenger and staff in the station when high-speed train pass through is becoming a growing problem that worthy of study. Domestic and foreign scholars have do some study on this issue, but it less than the study of vehicle bridge dynamics. The study of elevated station is mainly on the dynamic of large elevated station waiting room, but there is no study on the dynamic characteristics of small elevated bridge station platform. Though establishing train-elevated bridge station platform model, the following aspects of platform are studied:1. The vibration of elevated bridge station platform is caused by the vibration of track and track beam, first analyze the dynamic characteristic of track and track beam, obtain the variation of track and track beam when train passed in different speed.2. The vibration characteristic study of driving side of middle span of platform beam, along the longitudinal and transverse of road, when the train passed through in speed of250km/h.3. The comparative analysis of the vibration characteristics on the driving side and the non-driving side of the platform beam middle span, when the train passed through in speed of250km/h.4. The study of the whole driving side platform vibration characteristic, when the train passed through in speed of250km/h.5. The comparative analysis study of driving side platform vibration characteristic, when the train passed through in speed of250km/h,280km/h,300km/h,330km/h and350km/h.