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Combined box girder cast-in-place concrete top plate construction method

A technology of concrete roof and construction method, applied in the direction of bridges, bridge materials, bridge construction, etc., can solve the problems of low efficiency, long period and difficult construction, etc.

Inactive Publication Date: 2020-05-12
MCC COMM CONSTR GRP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a construction method for a composite box girder cast-in-place concrete roof, so as to solve the problems of difficulty in constructing a concrete cast-in-place roof, low efficiency, and long period.

Method used

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  • Combined box girder cast-in-place concrete top plate construction method
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  • Combined box girder cast-in-place concrete top plate construction method

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Embodiment Construction

[0026] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that these embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.

[0027] In order to describe in detail the construction method of the composite box girder cast-in-place concrete roof of the present invention, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] figure 1 The detailed process of the construction method for the cast-in-place concrete roof of the composite box girder according to the embodiment of the present invention is shown.

[0029] Such as figure 1 As shown, the construction method of the composite box girder cast-in-pl...

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Abstract

The invention provides a combined box girder cast-in-place concrete top plate construction method. The method comprises the steps that: a combined box girder is hoisted and fixed, wherein the combinedbox girder comprises a steel top plate and side webs; at least one preformed hole is formed in the edge of the steel top plate; at least one supporting hanging bracket is arranged between the steel top plate and the side web plates; the supporting hanging brackets are fixedly connected with the preformed holes in the corresponding positions through bolts; a distribution beam is laid between everytwo adjacent supporting hanging brackets, and bottom die plates are laid on the distribution beams; a steel reinforcement framework and side die plates are installed on the steel top plate and the bottom die plates; concrete filled with a steel reinforcement framework is poured between the steel top plate and the side die plates; and after the strength of the concrete meets a preset requirement,the die plates and the supporting hanging brackets are dismantled. The construction difficulty of top plate pouring of the combined box girder can be reduced through the supporting hanging brackets.

Description

technical field [0001] The invention relates to the technical field of building construction, in particular to a construction method for a cast-in-place concrete roof of a combined box girder. Background technique [0002] With the acceleration of social urbanization, the number of urban car ownership continues to increase, and traffic congestion has become a major problem related to the lives of urban residents. In order to make better use of the limited space of the urban public road network and realize the expressway of three-dimensional traffic on the ground, various viaducts in the city Planning and construction is increasing day by day. [0003] At present, the design of viaducts mostly adopts the form of cast-in-place box girder structure, and realizes interconnection through curved ramp bridges and parallel ramps. The standard width of cast-in-place girder design is two-way four-lane and six-lane, and the standard section bridge width is generally more than 25 meters...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D2/04E01D101/26E01D101/30
CPCE01D2/04E01D21/00E01D2101/26E01D2101/30
Inventor 侯小龙夏志忠周从军李国勋禄苗苗崔琦胡军
Owner MCC COMM CONSTR GRP CO LTD
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