The Structure Of Bailey Panel

The Bailey sheet is welded by upper and lower chords, vertical rods and inclined rods. The ends of the upper and lower chords are provided with yin and yang joints, and the joints are provided with pin holes for connecting rods. The chord of the Bailey sheet is composed of two No. 10 channel steels (back to back). On the lower chord, a number of steel plates with round holes are welded, and there are supply and reinforcement chords and double-layer trusses in the upper and lower chords There are four bolt holes in the upper chord for connecting the supporting frame, and the two holes in the middle are used for connecting double or multi-row trusses with the joints. The two holes at both ends are used for cross-internode connection. When multiple rows of berets are used as beams or columns, the joints of the upper and lower berets must be reinforced with a support frame.

On the lower chord, there are 4 beam backing plates with tenons above them to fix the position of the beam on the plane. There are also two elliptical holes on the channel steel web at the end of the lower chord for connection Wind-resistant pull rods are used. The Bailey piece vertical rods are all made of 8# I-beam, and there is a square hole on the side of the vertical rod near the lower chord, which is used for the beam fixture to fix the beam. The material of Bailey sheet is 16Mn, and the weight of each sheet frame is 270kg.

"321" steel bridge is a prefabricated highway steel bridge. Its biggest features are: light components, easy disassembly and assembly, strong adaptability, and can be quickly built with simple tools and manpower. It is suitable for 5 kinds of loads including automobile-level 10, automobile-level 15, automobile-level 20, crawler-level 50, and trailer-level 80. The clear width of the bridge deck lane is 3.7m, which can be combined into a variety of simply supported beam bridges with spans ranging from 9m to 63m, and continuous beam bridges can be constructed.