The Main Girder Structure Of The Bailey Beam Bridge

The bailey girder bridge is a bridge with a single-pin connection truss unit as the main girder of the span structure. It is mainly composed of a truss main girder, a bridge deck system, a connection system, and a foundation. According to the structure type, it can be divided into deck bridge and deck bridge. The bailey beam bridge has simple structure, strong adaptability, good interchangeability, convenient disassembly and assembly, and faster erection speed. It is mainly used to erect single-span temporary bridges to ensure vehicles and pedestrians cross rivers, broken bridges, valleys and other obstacles, and can be used to repair damaged bridges. It can also be used to construct construction towers, supporting frames, gantry frames and other assemblies Style steel structure.

The main girder of bailey beam bridge can be designed into different structural forms according to the design basis of span, load, etc. The common ones are: single row single layer, double row single layer, three row single layer, double row double layer, three row double layer And in the above five combinations of the upper and lower chords to increase the reinforcement chords and other forms.