Simple and fast method and device for installing adjacent cover girder top box girder with a pier-span gantry crane
A pier gantry crane and cover beam technology is applied in the field of simple and fast installation of adjacent cover beam top box beams with one span pier gantry crane, which can solve the problems of unsecured safety, high cost, slow progress, etc., and achieves low construction cost. , The construction cost is reduced, and the construction quality is good.
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[0035] Such as Figure 1 to Figure 5 As shown, a simple and quick method of installing a box girder on top of an adjacent cover girder with a pier-span gantry crane. Including the following steps:
[0036] (1) According to the ground conditions of the design line, determine the erection route of the cross-pier gantry crane. The erection route of the cross-pier gantry crane should avoid swamps, low-lying areas, weak water stable layers and soft ground. The cross-pier gantry crane is made up of gantry crane bracket 9, gantry crane traversing beam 3, crane 2 and suspension cable 6, and the lower end of gantry crane bracket is provided with gantry crane wheel 10, and the gantry crane wheel is positioned on the gantry crane track 11. The upper ends of the two gantry crane brackets support the two ends of the gantry traversing suspension beam, and the cranes are located on the gantry suspension beam. The gantry crane track is constructed longitudinally along the line, and the gant...
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