The Bailey bridge body is welded from Q345 national standard steel. Its core components include upper and lower chords, vertical members, and diagonal members. The chords consist of two No. 10 channel steels joined back-to-back, with male and female connectors and connecting pin holes at the ends. The lower chord is welded with a perforated steel plate and a crossbeam pad. A tenon is provided above the pad to fix the crossbeam position, and an elliptical hole is pre-drilled in the end web for connecting wind-resistant tie rods. The vertical members are made of No. 8 I-beams, with square holes on the sides for fixing the crossbeam clamps.

To meet different engineering needs, multiple sets of bolt holes are pre-drilled in the upper and lower chords: the middle holes are used for inter-segment connections of double or multi-row trusses, the end holes are used for cross-segment connections, and there are also dedicated holes for reinforcing chords and support frames. When multiple rows of Bailey panels are used as beams or columns, the joints between the upper and lower sections must be reinforced by support frames. The overall structural design is precise, fully ensuring the interchangeability of components and the strength of connections.