Double -deck girder section structure of bridge is built jointly in highway, railway or track traffic

The utility model provides a double -deck girder section structure of bridge is built jointly in highway, railway or track traffic to practice thrift the connection charge of right bank and left bank by a wide margin, reduce greatly to operate influencing each other of railway and highway, and obviously improve highway and railway passenger's the view of passing a bridge. Including left side highway girder, right side highway girder to and be located railway longeron between the two. The railway longeron adopts two -layer structure with left side highway girder, right side highway girder, and the railway longeron is located the upper strata, and left side highway girder and right side highway girder are located the lower floor, sets up the fourth road between under the railway longeron and left side highway girder, the right side highway girder inboard. 种公路、铁路或轨道交通合建桥梁双层主梁断面构造，以大幅度节约两岸的接线费用，大大减小运营铁路和公路的相互影响，并明显改善公路和铁路旅客的过桥景观。包括左侧公路主梁、右侧公路主梁，以及位于两者之间的铁路桁梁。所述铁路桁梁与左侧公路主梁、右侧公路主梁采用双层构造，铁路桁梁位于上层，左侧公路主梁和右侧公路主梁位于下层，铁