Abstract:The overpass at Huangmugang Transportation Junction in Shenzhen City is the first long-span through steel arch bridge of the co-constructed bridge and station in China. In order to solve the problem in the co-construction of underground station and arch bridge in the junction, the joint system structure of the co-constructed long-span bridge and underground structure is studied, and the static force characteristics and dynamic properties of the co-constructed structure of station and bridge are analyzed by the numerical simulation. At the same time, the wind resistance performance, structural form and stress characteristics of bridge structure are analyzed. The design study of the bridge provides a new idea for the co-construction of the station and bridge, which can be used as reference for relevant personnel.