The bridge model is designed according to the 32 msimply supported concrete box girder pre-stressed in thepost-tensioning method for a 350 km/h high-speed railway.The bridge model is separated from the guide rail and trainmodel. The separation of the track and bridge in the bridgeinstallation layout can not only avoid the adverse impact ofthe model bridge on the smoothness of the guide rail butalso achieve a convenient layout for different bridge types.In this study, the truss bridge model of Wang et al. [26] isreplaced by the box girder model in Fig. 3 to study theaerodynamic characteristics of a two-train intersection on asimply supported box girder bridge.