A Hollow Slab Girder Bridge Structure and Its Construction Technology

A hollow slab beam and beam technology, applied in bridges, bridge parts, bridge materials, etc., can solve the problem of reducing the height of the slope on both sides, and achieve the solution of stress problems, good overall stress performance, manufacturing, transportation and hoisting. handy effect

Active Publication Date: 2017-04-26
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the middle and small bridge projects across rivers, low-height beams are generally used to reduce the slope height on both sides, so prefabricated small box girders and T-beams have disadvantages

Method used

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  • A Hollow Slab Girder Bridge Structure and Its Construction Technology
  • A Hollow Slab Girder Bridge Structure and Its Construction Technology
  • A Hollow Slab Girder Bridge Structure and Its Construction Technology

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Experimental program
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Embodiment Construction

[0032] The present invention will be further elaborated below by describing a preferred specific embodiment in detail in conjunction with the accompanying drawings.

[0033] like Figure 3-Figure 6 A hollow slab girder bridge structure is shown, including: several hollow slab girders 100 spliced ​​together, wherein the hollow slab girder 100 includes a rectangular body 101; the top of the rectangular body 101 extends to both sides with small cantilever arms Steel bars 1011; the end of the rectangular body 101 is provided with beam steel bars 102; the small cantilever steel bars 1011 of the adjacent hollow slab girders 100 are just connected and then filled with concrete to form the bridge deck cast-in-place joint 200, and the adjacent hollow The slab girders 100 are connected together, and the thickness of the bridge deck cast-in-place joint 200 is smaller than the thickness of the rectangular body 101; the beam steel bars 102 of the adjacent hollow slab girders 100 are just c...

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PUM

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Abstract

The invention discloses a hollow plate girder bridge structure. The hollow plate girder bridge structure comprises a plurality of hollow plate girders which are spliced together, wherein each hollow plate girder comprises a rectangular body; the top of each rectangular body extends towards the two side edges to form small cantilever arm steel bars respectively; the ends of the rectangular bodies are provided with cross beam steel bars; after the small cantilever arm steel bars of the adjacent hollow plate girders are connected, concrete is filled up, bridge deck cast-in-place joints are formed, and the adjacent hollow plate girders are connected together; after the cross beam steel bars of the adjacent hollow plate girders are connected, concrete is filled up, cast-in-place cross beam joints are formed, and the adjacent hollow plate girders are connected together. The invention further discloses a construction process of the hollow plate girder bridge structure. The hollow plate girder bridge structure is good in overall stress performance, reliably guarantees the durability of a bridge, and can be applied to a new project and used for replacing an existing hinged hollow plate girder bridge on the basis of reserving original capping beams, stand columns and other substructures.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a hollow slab girder bridge structure and its construction technology. Background technique [0002] The pre-tensioned prefabricated hollow slab (beam) has the characteristics of low structural height, high degree of industrialization, convenient transportation and hoisting, fast construction speed and low project cost. It is widely used in bridge engineering, especially in small and medium bridge projects across rivers. . [0003] Prefabricated hollow slabs (beams) in the prior art, such as figure 1 and figure 2 As shown, the horizontal connection between the beams is generally connected by hinge joints 1' (that is, hinged hollow slab beams), and there is no cross-beam connection between the beams, and the prefabricated beams are generally made of equal-section inflatable capsules 2'. [0004] Hinged hollow slab girders have poor lateral connection performance of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/12E01D21/00E01D101/28
CPCE01D19/125E01D21/00E01D2101/28
Inventor 顾民杰马骉沈炯伟王萍
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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