Box girder hanging basket suspension pouring system and construction method

Abstract

The invention relates to a box girder hanging basket cantilever casting system. The box girder hanging basket cantilever casting system comprises a triangular hanging basket system, a box girder hanging basket cantilever casting internal mold fixing system, a triangular hanging basket travelling system and hanging basket auxiliary fixing side molds; the triangular hanging basket system comprises alower cross beam, an upper longitudinal beam, a box girder, side supports, overhanging rod supports, top overhanging rods, longitudinal support rods, a hanging basket and a pier column; the box girder hanging basket cantilever casting internal mold fixing system comprises another upper longitudinal beam, another lower cross beam, a first bottom plate, diagonal braces and a lateral top plate; thetriangular hanging basket travelling system comprises longitudinal support rods, L-shaped fixing plates, a groove block and a slideway; and the hanging basket auxiliary fixing side molds comprise sidesupports, bottom rods, vertical connecting rods and side balancing rods. The box girder hanging basket cantilever casting system has the beneficial effects that the longitudinal support rods and thetop overhanging rods can provide sufficient supporting force for the hanging basket; and in addition, the top overhanging rods are provided with tooth openings corresponding to convex ribs on reservedopenings, so that connection between the hanging basket and the overhanging rods can be strengthened.

Description

technical field [0001] The invention relates to the field of box girders, in particular to a box girder hanging basket hanging system and a construction method. Background technique [0002] During the construction of long-span cantilever beam bridges, it is impossible to set up long-span formwork high in the air, so it is impossible to carry out bridge construction in an ordinary way. To solve this problem, the engineering usually adopts to place the prefabricated box girder on the pier column, then hang the hanging basket on the prefabricated box girder, and then carry out further pouring of the box girder in the hanging basket to increase the length of the box girder. [0003] The stability and construction speed of the hanging basket affect the construction quality of the newly poured box girder. At present, the hanging basket uses a large number of steel trusses to maintain the stability of the hanging basket and bear the load of the hanging basket. This method has a s...

AI Technical Summary

Problems solved by technology

At present, the hanging basket uses a large number of steel trusses to maintain the stability of the hanging basket and bear the load of the hanging basket. The construction speed of this method is relatively slow, and it takes a long time to build the steel truss; Finally, it is necessary to continue to extend its length on the newly poured box girder. At this time, it is necessary to remove the hanging basket components on the box girder, and then build the hanging basket on the outside of the newly poured box girder, which is time-consuming and laborious; In addition, the stability of the box girder formwork also needs to be guaranteed, otherwise it will also affect the quality of the newly poured box girder

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