Hollow slab bridge structure with integral pavement layer and construction method of hollow slab bridge structure

A technology of hollow slab bridges and construction methods, which is applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., and can solve the threat of loss of hinged joint structure, lateral transmission load, single-slab stress, service life of assembled hollow slab bridges, and driving safety and other problems to achieve the effect of overcoming the difficulty of chiseling and improving reliability and durability

Active Publication Date: 2014-01-29
FUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous development of hinge joint disease, the hinge joint structure gradually loses the ability to transmit loads laterally, which eventually leads to the phenomenon of single-slab stress, which poses a huge threat to the service life and driving safety of prefabricated hollow slab bridges

Method used

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  • Hollow slab bridge structure with integral pavement layer and construction method of hollow slab bridge structure
  • Hollow slab bridge structure with integral pavement layer and construction method of hollow slab bridge structure
  • Hollow slab bridge structure with integral pavement layer and construction method of hollow slab bridge structure

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Embodiment Construction

[0017] Such as Figure 1-2 As shown, a hollow slab bridge structure with an integrated pavement layer includes a prefabricated hollow slab 1 and an integrated pavement layer 2 . The prefabricated hollow slab has a structural steel bar 3' on the top of the slab that protrudes from the surface and connects with the integrated pavement layer. The structural steel bars 3' for the connection of the layers are composed of the longitudinal steel bars 4 of the integrated pavement layer and the transverse steel bars 7 of the integrated pavement layer.

[0018] In this embodiment, the cross-sectional shape of the prefabricated hollow slab 1 is a rectangle with round holes. The structural steel bar 3' connecting the top with the integrated pavement layer is the erecting steel bar of the integrated pavement layer reinforcement mesh, which is arranged in a staggered manner with the stirrup bars 3 in the hollow slab along the longitudinal bridge direction; the integrated pavement layer 2 ...

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Abstract

The invention relates to a hollow slab bridge structure with an integral pavement layer and a construction method of the hollow slab bridge structure. The hollow slab bridge structure comprises a prefabricated hollow plate and the integral pavement layer, and is characterized in that constructional reinforcements which extend out of the surface of the top of the prefabricated hollow plate are connected with the integral pavement layer; and a double-layered reinforcing mesh is arranged on the integral pavement layer. The integral pavement layer has high durability and integrity; load can be transversely distributed well; by the constructional reinforcements which extend out of the top of the hollow plate and are connected with the integral pavement layer, the hollow plate can be effectively connected with the integral pavement layer. Because a hinge joint structure is omitted, the shortcomings that constructional reinforcements of the existing domestic assembly type hollow slab bridge hinge joint combination surface are dug out difficultly, are stressed uncertainly, and are easily damaged in practical application are overcome.

Description

technical field [0001] The invention relates to a hollow slab bridge structure with an integral pavement layer and a construction method thereof, belonging to the technical field of civil engineering. Background technique [0002] According to relevant data, as of 2010, the proportion of prefabricated hollow slab girder bridges in my country's highway bridge system reached 64%. This type of bridge has the advantages of low building height, easy prefabrication, and simple design and construction. At present, the prefabricated hollow slab bridge commonly used in China first pulls the structural reinforcement on the joint surface of the hollow slab and the hinge joint to the position close to the side formwork when prefabricating the slab girder, and pulls it out after the formwork is removed, but it is often easy for the structural reinforcement to be embedded in the concrete. phenomenon, causing difficulties in pulling out. The size of the hinged joint structure is relative...

Claims

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Application Information

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IPC IPC(8): E01D19/12E01D21/00
Inventor陈宝春郑瑞君吴庆雄
OwnerFUZHOU UNIV