1、Installation method of 900t bridge girder launcher

Choose the appropriate place to assemble and the step 1 is the following:Bridge Girder Erection Machine for High Speed Railway

Assemble the main girder, end cross beam, bracket platform, connecting cross beam in the middle part, guide cross beam and the front cantilever, also the third and fourth part of the rear support leg, the lifting mechanism, trolley and auxiliary trolleys.

Assemble the guide beam.

After the above-mentioned process is finish, the launcher travels along the longitudinal direction. Lift the assembled part of the launcher to the position of the 450t lifting crane, then the 900 launcher travels backward along the same line.

Assemble the guide beam in the same way.

Step 2 is the following:

Assemble the first and second part of the rear support legs, position the traveling mechanism of the rear support leg. Lift the assembled part on the rear support legs, front support legs and auxiliary support legs with 2 sets of the girder-lifting crane.

Step 3 is the following:

Electrical appliances installation, hydraulic system installation, run test with no load.

Step 4 is the following:

After erecting 2 pieces of the 900t full-span box girder with the 450t girder-lifting crane, lift the 900t launcher to the girder-erecting position with 2 sets of the crane to bind the guide beam and its front and rear support leg with bolts.

Step 5 is the following:

Erect 2 piece of the 900t box girder to carry the technical commissioning of the launcher and beam transporter.