Analysis On The Transverse Force Of Curved Beam Bridge Based On Lateral And Vertical Coupled Effecting

At present, most of the concrete curved girder bridges ware found to have the phenomenon of lateral climbing. In view of the multi factor analysis of this disease, the centrifugal force generated by the automobile had been regarded as one of the main factors by many scholars. The actual centrifugal force value is varied with the speed, the radius of curvature, and the form of the bridge structure. The beam was vibrated by centrifugal force and the axle coupling, thereby affecting the frictional resistance of bearing. When the frictional resistance of bearing on the effect of various kinds of external factors and vehicle centrifugal force cumulative value was increased to a certain degree of time, the support would be destroyed to increase the transverse displacement of the main beam body. In this paper, the following work had been done to analyze the transverse force of curved girder bridge:1. Based on the research status at home and abroad, this paper analyzed the characteristics of the coupling vibration between vehicle and bridge, and established the visual model of the interaction between vehicle and bridge with the LS-DYNA program. The feasibility of the program is verified by the theoretical solution.2. In this paper, through the simulation analysis, it is concluded that the numerical calculation of the lateral force is smaller than the value of the simulation calculation. The model considering different parameters such as super high speed, speed, radius and uneven road surface, the car under the centrifugal force numerical vehicle bridge interaction was precisely calculated.It was found that the numerical calculation of the centrifugal force system wsa smaller in fact.3. In this paper,the radial force time history curves of each bearing under different conditions are plotted successfully. Through the existing increasing centrifugal force of the numerical model, the lateral force of the bearing was calculated under the condition of eccentric driving, vehicle braking and bearing eccentric arrangement.Based on the above calculation, the lateral force of the support in the process of automobile driving is obtained, and the relevant time is drawn.After the conclusion drawn, the model is further optimized by the influence of each parameter to make the model closer to the actual situation more accurately. Analysis of the calculation method for the lateral force has made suggestions and references for same kind of bridge.