What Is The Importance Of Steel Temporary Bridges?

The truss (as shown in the figure) is welded by upper and lower chords, vertical rods and diagonal rods. The ends of the upper and lower chords have male and female joints, and the joints have truss connection pin holes.

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. In the upper and lower chords, there are connections for the reinforced chord and the double-layer truss. Bolt holes, there are four bolt holes for connecting the support frame in the upper chord. The two holes in the middle are for connecting double or multi-row trusses with the same section. The two holes on the two ends are the span sections. Used 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 cross-beam pads, and there are tenons above them to fix the position of the cross-beam on the plane: two elliptical holes are also provided on the web of the channel steel at the end of the lower chord. Connect the wind-resistant rod for use.

truss vertical rods are all made of 8# I-steel, and a square hole is opened on the side of the vertical rod next to the lower chord, which is used when the beam is fixed by the beam clamp.

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