The Composition Of The Bailey

Bailey Sheet - Truss

The truss is welded by upper and lower chord rods, vertical rods and inclined rods. The ends of the upper and lower chord rods are provided with yin and yang joints, and the joints are provided with Bailey sheet truss connecting pin holes.

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The chord of the truss 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. Bolt holes, there are four bolt holes in the upper chord for connecting the support frame, the two holes in the middle are for the connection of double or multi-row trusses with the same section, and the two holes at the two ends are for the span section. for inter-connection. When multiple rows of trusses are used as beams or columns, the joints of the upper and lower trusses must be reinforced with support frames.

On the lower chord, there are 4 crossbeam backing plates with tenons above them to fix the position of the crossbeam on the plane: there are also two elliptical holes on the web of the channel steel at the end of the lower chord for Use with wind-resistant pull rods.

The truss 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 the truss members is 16Mn, and each piece of truss weighs 270kg.

Truss connecting pin and safety pin

The truss connecting pin is used to connect two adjacent trusses, the weight is 3kg, and there is a small hole for the safety pin at one end of the taper.

Reinforced chord

It is mainly used to strengthen the bearing capacity of the truss chord. The material and section are the same as the upper chord of the truss, and the height of the upper chord of the truss chord is different from that of the seat plate of the chord bolt hole and the seat plate of the upper hole of the truss chord.

A reinforcing chord is connected to the truss chord by two chord bolts.

chord screw

The bolts used to strengthen the connection between the chord and the truss are M36×18, the material is 16Mn, the shear force is 150KN, and the tensile force is 80KN.

Truss Bolts

It is used for the connection of the upper and lower trusses, which is longer than the chord bolt, and its structure is the same as that of the chord bolt.

Scope of application:

Type 321 Bailey Bridge

It is suitable for load of automobile-level 10, automobile-level 15, automobile-level 20, crawler-level 50, trailer-level 80, etc.

Type 200 Bailey Bridge

It is suitable for load design of automobile-10, automobile-20, HS15, HS20, and crawler-50.