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Construction method of prefabricated box beam

A construction method and box girder technology are applied in the construction of prefabricated box girder and the field of prefabricated box girder preparation engineering, which can solve the problems of difficulty in effectively improving the binding positioning of steel cages and the quality of formwork support, and failure to solve the problems of rapid maintenance of prefabricated box girder. , to achieve the effect of reducing the difficulty, reducing the difficulty and avoiding stepping

Active Publication Date: 2020-05-29
四川路航建设工程有限责任公司
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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 precast box girders, and it is difficult to effectively improve the quality of reinforcement cage binding positioning and formwork support

Method used

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  • Construction method of prefabricated box beam
  • Construction method of prefabricated box beam
  • Construction method of prefabricated box beam

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0041] refer to figure 1 As shown, the construction method of the prefabricated box girder includes the following construction steps:

[0042] 1) Construction preparation: reinforce the beam field foundation 1, and set the box girder pier 10 on the beam field foundation 1; determine the concrete mix ratio; prepare the devices required for construction;

[0043] 2) Reinforcement cage binding: set two rows of tire frame bottom struts 4 and two rows of tire frame s...

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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 ...

Claims

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Application Information

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IPC IPC(8): B28B23/02B28B11/24E01D2/04
CPCB28B11/245B28B23/02B28B23/024E01D2/04
Inventor 许世辉罗俊黄鹏何旭阳李思艳
Owner 四川路航建设工程有限责任公司
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