Response Affect Of Space Frame Bus Station By Quality Change Of The Platform

As a new type of bus stations, elevated station has been applied our country's urban rail ansit construction. Space frame structure type structure belonging to the unity of the bridge construction, applicable to a lot has a large land area and station, the type of double-layer or multilayer structure can be made to facilitate exploitation and utilization, while the passenger on and off coach can transfer transport directly at the station the type of traffic which vertical in space make human flow efficiency has been accepted by the bus station of the major cities. However, the structure have poor dynamic stability and proportion of live load, so it is necessary to study when the live load change in the platform layer, the dynamic response of the structure changes.In this paper, taking the project of Zhengzhou East Railway Station as background, introduced the high-speed passenger trains and elevated stations, put forward the need to study the type of space frame structure. Get the train load for dynamic analysis through build a vehicle-bridge coupled model. Use the Finite software ANSYS to establish three-dimensional finite element modal of Zhengzhou East Railway Station by changing the platform layer of the six conditions overall quality, gain the result that the structural dynamic response is changed when the quality of the platform is altered, the track bear direct motivation that dynamic response change is altered. As for the track and platform adjacent panels are influenced. Only because the site layer there are bus stops, acceleration of change is more than 4%. For the waiting room, little effect on acceleration. But the velocity is relatively on acceleration, but the velocity relatively large. This work have reference significance to study and design the structure of space frame elevated station.