Categories bridge erecting machine machine one bridge erecting machine 1. The single beam construction machinery, which is a boom box girder, forward overhang at its front end has a collapsible legs (about two feet from the bar composition). The machine can be unloaded in their own state into the bridge site, and then straighten the front post, supported on the front of the pier. When the frame beams (or whole beam) move along the boom, the arm close to the simply supported beam state. After the bridge when the machine can position themselves into the bridge in no-load condition, the beams must first use a special gantry crane on railway flat cars to be transferred from a special Beam car, then this beam carrier and erecting machine end alignment, driving on the bridge with the two lifting beam machine boom car will lift beams along the boom line before arriving at the bridge site off the beam. To meet the curve bridge, the machine can make a few swinging arm in a horizontal plane. Beams in place methods and double cantilever bridge machine in the same manner (moving beam or lining). The machine's advantages are: Cancel counterweight, no longer need the machine to push the roof, feed without bridge girder fork line, increasing mechanization, improved safety performance. Hoist 130 tons of victory bridge erector is such a case.