Support construction

1 Bailey beam connection

After all Bailey beams are erected and in place, manual connections are made except for the support frames between every two pieces. The bottom of the Bailey beam is connected with 1.2 m steel pipe at intervals, which plays the role of the beam in the Beret bridge. The lower part of the Bailey beam is densely braced with long steel pipes at diagonal angles to prevent uneven subsidence of the reinforced concrete pedestal and offset partial deflection. The upper part of the Beret beam is laid with 5cm thick wood, and the longitudinal spacing is 1.2m. A pedestal can be used as the bottom support of the bowl buckle type support frame to increase the friction force and prevent the sliding between steel and steel. Two can play the role of the overall connection of the upper part of the Beret beam. This connection provides a supporting platform for the box girder bracket.

2 Support construction

After the top surface of the Beret beam is levelled with a thousand jin item, the bowl buckle bracket is set up. The distance between the base brackets of the bracket is 90 cmx20 cm, and each base bracket is placed on the wooden board. And with Berley beam - axis, to ensure that the upper load directly transferred to Berley beam. Then the bowl fastener neutral bar, cross bar erection, put on the support, and finally build the square wood, paving the bottom die.