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Steel bridge deck pavement structure for ultra-large span

A steel bridge deck and pavement technology, which is applied to bridges, bridge parts, bridge construction, etc., to achieve the effects of ingenious structure, moisture isolation, and prolonging service life

Active Publication Date: 2020-09-25
重庆市智翔铺道技术工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a steel bridge deck pavement structure for super-long-span steel bridges, which is used to substantially reduce the load-bearing requirements and construction difficulties of super-long-span steel bridges, improve the durability of steel bridges, and effectively solve the problem of super-long-span steel bridges. The problem of twisting and deformation of the bridge deck during use

Method used

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  • Steel bridge deck pavement structure for ultra-large span
  • Steel bridge deck pavement structure for ultra-large span
  • Steel bridge deck pavement structure for ultra-large span

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A steel deck pavement structure for very long spans, such as figure 1 , figure 2 and image 3 As shown, it includes an anti-corrosion layer 2, an elastic transition layer 3, a polymer prefabricated profile layer 4 and an anti-skid layer 5 laid sequentially on the steel bridge deck 1 (steel plate), between the elastic transition layer 3 and the polymer prefabricated profile layer 4 There is an adhesive layer between them; the elastic transition layer 3 and the anti-skid layer 5 are both integrally formed, and the specification of the single polymer prefabricated profile layer 4 is 6-12 meters long and 1-1.8 meters wide. The prefabricated profile layers 4 are connected in a way of overlapping or clamping, and the surfaces of all the connected polymer prefabricated profile layers 4 are located on the same plane.

[0029] Among them, the elastic transition layer 3 is made by blending reactive resin and filler with a particle size of less than 5 mm. The elastic transition...

Embodiment 2

[0037] A kind of steel bridge deck pavement structure for ultra-large span, refer to embodiment 1 and combine Figure 4 As shown, its main difference from Example 1 is: the anti-slip layer 5 adopts a 5mm thick modified methacrylic resin layer; the polymer prefabricated profile layer 4 is a prefabricated hollow profile layer using modified ASA, and its thickness is 40mm 1. The hollow rate is 30%, and the holes corresponding to the hollow parts are round holes; the thickness of the elastic transition layer 3 is 15mm.

Embodiment 3

[0039] A steel bridge deck pavement structure for a super-long span, referring to Example 1, the main difference between it and Example 1 is that the prefabricated module layer is a prefabricated profile layer made of ASA, PA, PVC alloy, and its thickness is 30mm ; The thickness of the elastic transition layer 3 is 12mm.

[0040] Adopting the steel bridge deck pavement structure of the present invention, in the process of use, whether it is due to the change of bridge deck dynamic load or the disturbance of the steel bridge itself caused by wind force, it will not cause distortion and warping deformation of the steel bridge deck, which is solved ingeniously. The problem of twisting deformation and warping deformation of super long-span steel bridge deck during use is solved.

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Abstract

The invention provides a steel bridge deck pavement structure for an ultra-large span. The steel bridge deck pavement structure comprises an anti-corrosion layer, an elastic transition layer, polymerprefabricated profile layers and an anti-sliding layer which are all sequentially paved on a steel bridge deck; a bonding layer is arranged between the elastic transition layer and the polymer prefabricated profile layers; the elastic transition layer and the anti-sliding layer are both of an integrally-formed structure; the specification of each single macromolecule prefabricated profile layer is1-12 m long and 0.5-1.8 m wide; the adjacent macromolecule prefabricated profile layers are connected in a lap joint or clamping connection mode; and the surfaces of all the macromolecule prefabricated profile layers after being connected are located on the same plane. With the steel bridge deck pavement structure, in a using process, no matter a steel bridge deck is disturbed by dynamic load change of the bridge deck or wind power, distortion and buckling deformation of the steel bridge deck cannot be caused, and the problems of the distortion and buckling deformation of an ultra-large-spansteel bridge deck in the using process are ingeniously solved.

Description

technical field [0001] The invention belongs to the technical field of steel bridge deck pavement, and in particular relates to a steel bridge deck pavement structure for super-large spans. Background technique [0002] At present, there are more or less problems with the asphalt pavement structure of all steel box girder bridges in my country, especially for some long-span and super-long-span heavy-duty bridges. Generally, some bridges need to be repaired almost every year. In the steel bridge deck pavement structure, epoxy asphalt mixture, as a thermosetting material, plays an extremely important role. It has excellent high temperature stability and mechanical properties, and especially has good resistance to load deformation at high temperatures It has been widely used in the pavement structure of many long-span steel box girder bridges in China. However, this kind of steel bridge deck pavement structure with epoxy asphalt mixture has the disadvantages of high brittlenes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12E01D19/08
CPCE01D19/125E01D19/08E01D19/083
Inventor 盛兴跃郝增恒杨波李璐徐建晖刘攀王民全弘兵常诚岳晓文代剑锋张锋
Owner 重庆市智翔铺道技术工程有限公司
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