The Study Of Deflection Force In CWR Of Urban Rail Transit

A large number of CWR was laid on the Urban Track Traffic Bridge. Because the changes in the Urban Track Traffic Bridge structure will inevitably affect the forces of CWR, therefore to elevating rail line in the safe and stable operation, it need deeply study of deflection force in CWR of Urban Rail Transit. In this paper, the3-D finite element models of CWR on different forms of bridge have been established, and the law of the various design parameters on the pier rail force and the force deflection has been discussed. The rail deflection force and the force on the bridge pier with the change of bridge concrete has been discussed in the bridge height reduction. The contents and the results of this paper and the study are as follows:1. According to the characteristics of urban rail transit, the rail and bridge design parameters will be determined.2. According to the principle beam rail interaction, the mechanical models have been established. Then it need calculate with the help of ANSYS.3. Based on the simply supported Box-girder bridge、the continuous Box-girder bridge and the simply supported U-beam bridge in the actual projects, the rail deflection force and the force on the bridge pier will be analyzed and studied from the parameters of the rail and bridge. And the rail deflection force and the force on the bridge pier with the change of bridge concrete will be deep discussed in the bridge height reduction.