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Cement concrete bridge deck pavement layer with temperature adjusting function

A cement concrete and bridge deck paving technology, applied in bridges, bridge parts, pavement details, etc., can solve problems such as corrosion of steel bars, and achieve the effects of eliminating damage, prolonging service life and reducing cracks

Active Publication Date: 2014-03-19
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a cement concrete bridge deck pavement with the function of temperature adjustment for the existing cement concrete bridge deck pavement, which is prone to cracks and steel bar corrosion, and the unfavorable situation that freezing in winter affects normal use.

Method used

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  • Cement concrete bridge deck pavement layer with temperature adjusting function
  • Cement concrete bridge deck pavement layer with temperature adjusting function
  • Cement concrete bridge deck pavement layer with temperature adjusting function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] see Figure 1-Figure 4 , the present invention has a cement concrete bridge deck pavement layer with temperature regulation function, the cement concrete bridge deck pavement layer is made up of FRP bar 3, hollow FRP bar 4, hollow FRP buckle pipe 5 and cement concrete, FRP bar 3 Vertically and evenly distributed in the bridge deck pavement layer, the hollow FRP bars 4 are evenly distributed in the horizontal direction in the bridge deck pavement layer, and two adjacent hollow FRP bars 4 are connected by hollow FRP buckle pipes 5, and the hollow FRP bars 4 and hollow The FRP button pipes 5 are connected to form a connected hollow channel, and the hollow channel is provided with a water inlet 1 and a water outlet 2 . The two ends of the hollow FRP bar 4 are provided with the ends 6 perpendicular to the hollow FRP bar 4 and integrated with it, and the two ends of the hollow FRP buckle tube 5 are provided with the ends 6 perpendicular to the hollow FRP buckle tube 5 and int...

Embodiment 2

[0036] The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that the polymer 11 is unsaturated polyester, the fiber reinforcement material 9 is carbon fiber, the metal powder 10 is iron powder, and the weight of the carbon fiber reinforcement material 9 occupies the hollow space. 65% of the weight of the carbon fiber reinforced polymer rib 4, the weight of the glue matrix accounts for 35% of the weight of the hollow carbon fiber reinforced polymer rib 4, and the weight of the iron powder 10 accounts for 25% of the weight of the glue matrix.

Embodiment 3

[0038] The structure of this embodiment is basically the same as that of Embodiment 1. The difference is that the polymer 11 is epoxy resin, the fiber reinforcement material 9 is basalt fiber, the metal powder 10 is steel powder, and the weight of the basalt fiber reinforcement material 9 is Accounting for 75% of the weight of the hollow basalt fiber reinforced polymer bars 4, the weight of the glue matrix accounts for 25% of the weight of the hollow basalt fiber reinforced polymer bars 4, and the weight of the steel powder 10 accounts for 15% of the weight of the glue matrix.

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Abstract

The invention discloses a cement concrete bridge deck pavement layer with a temperature adjusting function and belongs to the technical field of bridge construction. The cement concrete bridge deck pavement layer is composed of fiber reinforcement polymer (FRP) ribs, hollow FRP ribs, hollow FRP clamping pipes and cement concrete. The FRP ribs are distributed in the bridge deck pavement layer evenly and longitudinally, the hollow FRP ribs are distributed in the bridge deck pavement layer evenly and transversely, adjacent two hollow FRP ribs are connected through the hollow FRP clamping pipes, the hollow FRP ribs and the hollow FRP clamping pipes are connected to form communicated hollow ducts, and water inlets and water outlets are formed in the hollow ducts. By means of the cement concrete bridge deck pavement layer, the internal temperature of the cement concrete can be effectively adjusted, development of the cement concrete strength is guaranteed, cracks are reduced, ice and snow on the bridge surface in winter can be melted fast, damage of deicing salt on a bridge main body structure is removed, and the cement concrete bridge deck pavement layer has great significance on prolonging the service life of a bridge.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a cement concrete bridge deck pavement layer with a temperature regulating function. Background technique [0002] The bridge deck pavement is a special auxiliary structure in bridge engineering. It mainly plays the role of protecting the main body of the bridge structure and providing a comfortable and safe road surface for driving. withstand external loads. Cement concrete bridge deck pavement is one of the main structural forms of bridge deck pavement, and it is mainly used when the main structure of the bridge is relatively rigid, such as when the main girder is a reinforced concrete structure. [0003] The cement concrete bridge deck pavement is a thin-slab structure exposed to the air in a large area. Cracks are easily formed on the concrete surface. After the cracks appear, the impermeability of the bridge deck pavement is greatly reduced, resulting in rainwat...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01C11/26
Inventor 赵军李光辉
Owner ZHENGZHOU UNIV