Construction method of prefabricated box beam

Abstract

The invention relates to a construction method of a prefabricated box beam. The construction method comprises the steps that (1), construction is prepared; (2), a steel reinforcement cage is bound; (3), hoisting construction of a box beam steel reinforcement cage is carried out; (4), a box beam template is arranged in a supporting mode; (5), concrete pouring construction is carried out; (6), the prefabricated box beam is subjected to steam curing; and (7), the prefabricated box beam is subjected to wet curing. The construction method of the prefabricated box beam has the beneficial effects that the position of box beam stirrups can be limited by stirrup embedded grooves in stirrup limiting plates, the positions of a box beam longitudinal bar on the lower layer and a box beam longitudinal bar on the upper layer are correspondingly limited by a longitudinal bar limiting groove and a longitudinal bar limiting ring, and the difficulty of binding and positioning steel reinforcements of thebox beam steel reinforcement cage is reduced; and meanwhile, a hanging platform plate is arranged on the upper part of an upper-layer tread plate, the horizontal position of a tread plate sliding beamcan be adjusted through sliding beam rollers, and the box beam steel reinforcement cage is prevented from being treaded in the construction process of the box beam steel reinforcement cage.

Description

technical field [0001] The invention relates to a construction method of a prefabricated box girder, which belongs to the field of bridge engineering and is suitable for the preparation project of a prefabricated box girder. Background technique [0002] In the process of bridge engineering construction, more and more viaducts use prefabricated box girders to improve construction efficiency and protect the construction environment. During the construction of prefabricated box girders, the quality of steel cage binding, the effect of formwork support, and the quality and efficiency of maintenance construction have always been the focus of control. [0003] There is a construction method for prefabricated concrete box girders in the prior art, which includes the following steps: 1) prefabricating a concrete pedestal on the ground; Channel steel, set a sealing glue stick in the channel steel; 3) Hoist the side formwork of the outer mold, and lock and fix the lower part of the ...

AI Technical Summary

Problems solved by technology

Although this technology can satisfy the preparation of precast concrete box girders, it fails to solve the problem of rapid maintenance of

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