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Steel bridge deck paving structure and paving method

A steel bridge deck and pavement technology, which is applied to bridges, bridge parts, bridge construction, etc., can solve the problems of shortening the service life of the pavement, affecting the performance of the pavement, and weak bending resistance of the pavement. Enhanced resistance to fatigue cracking, weak bending resistance, and low overall rigidity

Active Publication Date: 2013-05-22
广州大象超薄路面技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The asphalt mixture-like flexible pavement on the existing steel bridge deck is not only prone to high-temperature deformation defects, including shifting, rutting, wrapping, etc. Weak bending resistance, prone to fatigue cracks, which seriously affects the performance of the pavement and shortens the service life of the pavement
In addition, the pavement layer of the steel bridge deck is easy to freeze in winter, threatening the safety of driving

Method used

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  • Steel bridge deck paving structure and paving method
  • Steel bridge deck paving structure and paving method
  • Steel bridge deck paving structure and paving method

Examples

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Comparison scheme
Effect test

Embodiment 1

[0029] Example 1 Spreading road petroleum asphalt and gravel in a regular quadrilateral steel grid

[0030] (1) Pavement structure and materials

[0031] The pavement structure of the present invention has been realized on a steel bridge deck of an expressway. A grid sheet formed by a steel grid 1 is laid on the steel plate 3 of the bridge deck, and a flexible filler 2 is filled in the internal space of the steel grid 1 . The upper surface of the steel mesh 1 and the upper surface of the flexible packing jointly bear the traffic load, such as figure 1 shown.

[0032] like figure 2 As shown, the steel grid 1 is a regular quadrilateral. The side length of grid 1 is 30 mm; the wall thickness of grid 1 is 1 mm; the height of grid 1 is the thickness of the pavement layer, which is 10 mm; the raw material of steel grid adopts GB / T714-2008 "Bridge Structure The Q345qC grade steel specified in "Steel".

[0033] The upper surface of the flexible filler 2 is flush with the u...

Embodiment 2

[0043] Example 2 Sprinkle SBS modified asphalt and gravel in regular hexagonal steel grid

[0044] (1) Pavement structure and materials

[0045] The pavement structure of the present invention has been realized on a steel bridge deck of an expressway. A grid sheet formed by a steel grid 1 is laid on the steel plate 3 of the bridge deck, and a flexible filler 2 is filled in the internal space of the steel grid 1 . The upper surface of the steel grid 1 and the upper surface of the flexible filler jointly bear the action of the traffic load.

[0046] Among them, the steel grid 1 is a regular hexagon. The side length of grid 1 is 100mm; the wall thickness of grid 1 is 10mm; the height of grid 1 is the thickness of the pavement layer, which is 25mm; the raw material of steel grid adopts GB / T714-2008 "Structural Steel for Bridges "Standard Q345qC grade steel.

[0047] The upper surface of the flexible filler 2 is flush with the upper surface of the steel grid. The flexible...

Embodiment 3

[0057] Example 3 Spreading rubber-modified asphalt and gravel in a regular quadrilateral steel grid

[0058] (1) Pavement structure and materials

[0059] The pavement structure of the present invention has been realized on a steel bridge deck of an expressway. A grid sheet formed by a steel grid 1 is laid on the steel plate 3 of the bridge deck, and a flexible filler 2 is filled in the internal space of the steel grid 1 . The upper surface of the steel grid 1 and the upper surface of the flexible filler jointly bear the action of the traffic load.

[0060] Among them, the steel grid 1 is a regular quadrilateral. The side length of grid 1 is 30 mm; the wall thickness of grid 1 is 1 mm; the height of grid 1 is the thickness of the pavement layer, which is 10 mm; the raw material of steel grid adopts GB / T714-2008 "Bridge Structure The Q345qC grade steel specified in "Steel".

[0061] The upper surface of the flexible filler 2 is flush with the upper surface of the steel...

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Abstract

The invention discloses a steel bridge deck paving structure and a paving method. The steel bridge deck paving structure comprises a gridding piece paved on a bridge deck steel board and formed by steel gridding and soft padding for filling gaps in the steel gridding. The upper surface of the steel gridding and the upper surface of the soft padding bear traffic load together. The paving method comprises the following steps. The steel gridding is welded and fixed on the bridge deck steel board, and the bottom sides of the steel gridding are all welded on the steel bridge deck, soft padding of a pitch kind is spread, and macadam is spread. Emulsified pitch is sprayed, and grinding is performed. The steel bridge deck paving structure and the paving method can improve the capacity of resisting high temperature deformation of a pavement layer and the performance of resisting fatigue and cracking, and the function of automatic icebreaking of the pavement layer in winter is achieved.

Description

technical field [0001] The invention relates to a road engineering structure and a construction method thereof, in particular to a pavement structure paved on a steel bridge surface and a pavement method thereof. Background technique [0002] The asphalt mixture-like flexible pavement on the existing steel bridge deck is not only prone to high-temperature deformation defects, including shifting, rutting, wrapping, etc. The bending resistance is weak, and fatigue cracks are easy to occur, which seriously affects the performance of the pavement and shortens the service life of the pavement. In addition, the pavement layer of the steel bridge deck is easy to freeze in winter, which threatens driving safety. Contents of the invention [0003] The purpose of the present invention is to provide a steel bridge deck pavement structure and its construction method, improve the pavement layer's ability to resist high temperature deformation and fatigue cracking resistance; and reali...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01C7/32
Inventor 葛折圣
Owner 广州大象超薄路面技术开发有限公司
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