Before Assembling Bailey Truss First To Install The Bridge, Installation Method Is As Follows

Before assembling bailey truss first to install the bridge, installation method is as follows:

1, the introduction to land on the rock of bailey truss assemble well first, truss end on the rock, the other side is on the temporary timbers.

2. The Yin and Yang heads of the truss pieces must be consistent. The first beam should be placed behind the front vertical rod, and the two rows of holes in the bottom surface of the beam should be respectively inserted into the bolts on the lower chord beam plate of the two truss pieces. The bolts should be clamped by the beam fixture, and the bolts should not be tightened temporarily.

3. Install the second truss piece, and at the same time, the beere piece should be installed on the truss beam of the previous section. The upper beam should be installed behind the vertical rod of the front end of the second section of the truss, and the beam fixture should be gently clamped.

4. Install the third truss, and install the wind-resistant tie rod on the first truss piece, and install the diagonal brace on the beam of the second truss piece. The nose frame should be installed in turn, and a total of four truss pieces should be installed as the nose frame.

5, the bridge has launched the hoist traction, the process of traction should be unified command, consistent steps, operation coordination, at any time to check the operation of the roller and bridge, if found abnormal, should immediately stop the operation, until the problem is solved and then continue to promote.

6. After the bridge is pushed to the position, remove the nose frame, support the lower string seat of the bridge with a jack, check the Beret piece and tighten all the support frame, beam fixture and wind resistance tie rod.

7, the laying of longeron, bridge panel, steel plate, etc.