Analysis of Train Running Performance of Three-Tower Cable-Stayed Bridge on the Same Floor of Some Highway&Rail Transit
Taking a three tower steel box girder cable-stayed bridge built on the same floor of a highway and rail as an example,the characteristics and main problems of the multi-tower cable-stayed bridge built on the same floor of the highway and rail are analyzed.By establishing the finite element model of cable-stayed bridge structure and the finite element model of train and vehicle,the vehicle bridge coupling dynamic response under various load conditions is analyzed,and the running performance of rail train and the comfort of passengers crossing the bridge are evaluated.The results show that the three tower cable-stayed bridge structure can meet the requirements of static force and safety and comfort of train running at the same time,and the beam end position of multi tower cable-stayed bridge system should be paid more attention.