Structural Form And Construction Method Of Bailey Steel Bridge

Bailey steel bridge bridge deck clear width of 9 meters, for two lanes. The foundation adopts steel pipe pile foundation (joint site investigation should be carried out, and water resistance coefficient should be considered according to steel pipe pile design or concrete column pier expansion due to river direction

Large foundation), each pier using 6 or 4 φ800X8, the length of 12m steel pipe, each row of three piers. Steel pipes are connected with scissors support. A groove is provided above the steel pipe.

Install distribution rail, distribution beam on the rail. The bridge has a total of 8 spans of 24m, and the beams are reinforced with four rows of single-layer shell E trusses.

Steel piles are inserted with a column base (such as the expansion of the foundation concrete column pier is conventional construction), sunk with a vibrating pile hammer, and the beam part is dragged and erected with a set of propulsion equipment equipped with bailey pile frame (also available

Crane use should also consider the site crane transfer is convenient). In order to ensure that the stress of the beret truss member is within the allowable range during the dragging process, it should be advanced from both sides to the middle of the span

Mid-span interference, because the bridge has two curves, should be smooth transition, Angle can be amplified, and limit the speed.