What should be done before the erection of the bridge girder
But what should be done before the erection of the bridge frame? Here for you to explain! 1, bridge erecting machine at the end of the bridge is ready to assemble the beam, should be placed in the bridge at the vertical track, in order to frame beam; 2, the bridge machine cantilever to the next bridge pier; forward process should ensure the stability of truss. 3, the bridge machine in the back of the four hydraulic cylinder at the same time out, so that the bridge machine in the rear of the car to drive, pull the drive car to change the direction of its movement, auxiliary personnel quickly laying the longitudinal track. The hydraulic cylinder is driven by a hydraulic cylinder.
But it is very different from the general sense of the crane. The requirements of the harsh conditions, and the existence of the beam on the line, or called the longitudinal shift.
The bridge erecting machine is a device for placing a prefabricated beam on a prefabricated pier. Bridge crane is a crane, because its main function is to lift the beam, and then transported to the location and put down
