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Factory-made orthotropic steel plate and composite combined deck structure

An orthotropic, composite material technology, used in bridges, bridge parts, bridge construction, etc., can solve problems such as fatigue cracking of steel bridge deck structures, damage to asphalt mixture pavement, safety hazards, etc., and achieve stable high temperature stability. and low temperature crack resistance, high stiffness, anti-cracking effect of pavement layer

Inactive Publication Date: 2013-04-03
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the operation time increases, it is easy to cause damage to the asphalt mixture pavement and fatigue cracking of the steel bridge deck structure, causing safety hazards

Method used

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  • Factory-made orthotropic steel plate and composite combined deck structure
  • Factory-made orthotropic steel plate and composite combined deck structure
  • Factory-made orthotropic steel plate and composite combined deck structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The factory prefabricated orthotropic steel plate-composite material composite bridge deck structure of the present invention comprises orthotropic steel plate 1, and the orthotropic steel plate 1 is provided with rib shear key 5, and is arranged on the upper surface of orthotropic steel plate 1 Composite material layer 2 with a thickness of 5 mm. The composite material layer 2 is made of 8 layers of biaxial glass fiber cloth and vinyl resin cured. The top layer of glass fiber cloth is a rough surface layer 4 composed of looped fabric. Import process preparation, and finally pour a layer of wear layer 3 made of asphalt mixture with a thickness of 4cm.

Embodiment 2

[0028] The factory prefabricated orthotropic steel plate-composite material composite bridge deck structure of the present invention comprises orthotropic steel plate 1, and the orthotropic steel plate 1 is provided with rib shear key 5, and is arranged on the upper surface of orthotropic steel plate 1 The interior of the layer is filled with a composite material layer 2 of a core material 8 made of paulownia wood with a thickness of 5 cm. On both sides of the core material 8, 5 layers of biaxial glass fiber cloth with a thickness of 3 mm and a composite material cured with vinyl resin are laid. The material is to form a composite material layer 2, and the upper layer of glass fiber cloth on the composite material layer 2 is a rough surface layer 4 composed of a loop fabric, which is prepared by a vacuum introduction process, and finally a layer of asphalt mixture with a thickness of 3 cm is poured. wear layer 3.

Embodiment 3

[0030] The factory prefabricated orthotropic steel plate-composite material composite bridge deck structure of the present invention comprises orthotropic steel plate 1, and the orthotropic steel plate 1 is provided with rib shear key 5, and is arranged on the upper surface of orthotropic steel plate 1 The interior of the layer is filled with a composite material layer 2 of a core material 3 made of paulownia wood with a thickness of 5 cm. The composite material webs 7 are regularly arranged along the thickness direction of the core material 3, and the webs 7 are perpendicular to the orthotropic steel plate 1. Both sides of 8 are laid with 5 layers of composite material made of four-axis basalt fiber cloth and epoxy resin cured to form the composite material layer 2, and the upper layer of glass fiber cloth on the composite material layer 2 is a rough fabric made of looped fabric. The surface layer 4 is prepared by a vacuum introduction process, and finally a layer of concrete ...

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Abstract

The invention discloses a factory-made orthotropic steel plate and composite combined deck structure. The deck structure comprises an orthotropic steel plate (1), a composite layer (2) and a wearing layer (3), wherein the upper side of the orthotropic steel plate (1) is provided with the composite layer (2) and the wearing layer (3) in sequence; the composite layer (2) is mutually connected with the orthotropic steel plate (1) below the lower side of the composite layer (2) through resin; the top face of the composite layer (2) is provided with a rough surface layer (4); and the wearing layer (3) is cast at the upper side of the rough surface layer (4). Through additionally installing the composite layer between the orthotropic steel plate and the wearing layer, the deck structure disclosed by the invention is light in weight, high in strength, high in rigidity, good in peeling resistance, moisture resistance and corrosion resistance and high in high-temperature stability and low-temperature anti-cracking performance and has the outstanding features that assembly construction is simple and rapid; water is resisted; a pavement layer is prevented from being cracked; and the orthotropic steel deck structure is prevented from being corroded. The factory-made orthotropic steel plate and composite combined deck structure is suitable for building and repairing various steel deck structures.

Description

technical field [0001] The invention relates to the technical field of bridge deck pavement structures, in particular to a composite bridge deck structure that can be used as a composite bridge deck in bridge structures, specifically a light-weight, high-strength, corrosion-resistant factory prefabricated orthogonal deck structure. Heterotropic steel plate-composite composite bridge deck structure. Background technique [0002] The traditional orthotropic steel deck system is mostly composed of orthotropic steel deck and asphalt mixture pavement. As the operation time increases, it is easy to cause damage to the asphalt mixture pavement layer and fatigue cracking of the steel bridge deck structure, causing potential safety hazards. Contents of the invention [0003] The object of the present invention is to solve the problems existing in the prior art, and provide a factory-prefabricated orthotropic steel plate-composite composite bridge deck structure which is anti-fati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/12
Inventor 刘伟庆方海徐超
Owner NANJING UNIV OF TECH
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