The stand should be installed before assembling the 321Bailey Bridge . The installation method is as follows: First, the Bailey truss is assembled on the rock on the launch bank, and one end of the truss piece is placed on the rock and the other end is placed on the temporary cushion wood.
2.The ends of the truss plates should be consistent. A die beam should be placed behind the front vertical bar.The two rows of holes at the bottom of the beam shall be placed into the bolts on the lower chord beam plate of the two truss plates respectively and clamped with the beam clamp. Do not tighten for the time being, tighten the diagonal brace on the beam after installation.
3.Install two truss pieces. At the same time, the Bailey piece should be installed on the front truss beam with a diagonal brace, and the rear of the front vertical rod of the two truss should be installed with a beam clamp, and the beam should be gently tightened without tightening until the diagonal brace on the cross beam is installed.
4.Install the three-section truss, install the wind tie rod on the first section truss plate, install the diagonal brace on the two-section truss plate beam, the nose frame installation should be cycled in succession, and the four-section truss plate should be installed into the nose frame.
5.In the process of traction, unified command, consistent steps and coordinated operation should be achieved. The operation of the roller and bridge should be checked at any time. If any situation is found, the operation should be stopped immediately and the problem should be solved before continuing to push forward.6.After pushing the bridge into position, remove the nose frame, jack the lower chord of the bridge to the seat, check the Bailey plate, and tighten all supports, beam fixtures and wind tie rods.7.Laying longitudinal beams, bridge panels, steel plates, etc.
Post time: Jun-16-2023