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Arch Bridge Structure Using Foam Concrete and Corrugated Steel Plate and Its Construction Method

A technology of foam concrete and corrugated steel plate, which is applied in basic structure engineering, arch bridges, bridges, etc., can solve problems such as car jumping and inability to compact bridge heads, achieve enhanced bearing capacity and adaptability to deformation, eliminate bridge head jumping problems, and enhance Effect of resistance to buckling failure

Active Publication Date: 2018-01-09
CHANGAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The arch bridge structure has the characteristics of light weight, strong spanning ability, strong ability to adapt to deformation and high bearing capacity, which effectively solves the problem that the traditional backfill materials on the top of the arch ring and on both sides cannot be compacted and the problem of vehicle jumping at the bridge head

Method used

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  • Arch Bridge Structure Using Foam Concrete and Corrugated Steel Plate and Its Construction Method
  • Arch Bridge Structure Using Foam Concrete and Corrugated Steel Plate and Its Construction Method
  • Arch Bridge Structure Using Foam Concrete and Corrugated Steel Plate and Its Construction Method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] like figure 1 An arch bridge structure using foam concrete and corrugated steel plates is shown, including a left reinforced concrete foundation 12, a right reinforced concrete foundation 10, and an arch ring arranged between the left reinforced concrete foundation 12 and the right reinforced concrete foundation 10 6 and the foam concrete filling body 7 filled above and on both sides of the arch ring 6, the arch ring 6 includes a concrete arch slab 6-2 and a steel plate arch shell 6-1 made of corrugated steel plates, the steel plate arch The shell 6-1 and the concrete arch slab 6-2 are anchored and connected, and the bridge deck pavement structure 9 is laid on the foamed concrete filling body 7 . Specifically, the foam concrete filling body 7 is connected to the roadbed 1 on both sides thereof, and the front and rear sides of the foam concrete filling body 7 are provided with arch bridge side walls 3, and the arch bridge side walls 3 are provided with wing walls 2. Bet...

Embodiment 2

[0084] like image 3 As shown, the difference between the arch bridge structure of this embodiment and the arch bridge structure of Embodiment 1 is that: the left reinforced concrete foundation 12 and the right reinforced concrete foundation 10 are both slab foundations, and the left reinforced concrete foundation 12 A foam concrete foundation on the left side is provided below, and a foam concrete foundation 13 on the right side is provided below the reinforced concrete foundation 10 on the right side. In this embodiment, by designing the left reinforced concrete foundation 12 and the right reinforced concrete foundation 10 as slab foundations, the load acting on the left foam concrete foundation and the right foam concrete foundation 13 can be effectively diffused, reducing The vertical compressive stress is reduced.

[0085] In this embodiment, a tapered slope 14 is provided on the side wall 3 of the arch bridge.

Embodiment 3

[0087] like Figure 4 As shown, the difference between the arch bridge structure of this embodiment and the arch bridge structure of Embodiment 1 is that: the number of the steel plate arch shells 6-1 is two, and the two steel plate arch shells 6-1 are connected by screws. The concrete arch 6-2 is located between the two steel plate arch shells 6-1, and the concrete arch 6-2 is made of self-compacting concrete. It adopts two steel plate arch shells 6-1, which can make the span of the arch bridge structure exceed 16m. And the concrete arch slab 6-2 is made of self-compacting concrete and steel bars, which can enhance the strength of the concrete arch slab 6-2, thereby improving the bearing capacity.

[0088] In this example, to prepare C40-C50 self-compacting concrete, the amount of cementitious material should be 450kg / m 3 ~550kg / m 3 , the water-binder ratio should be less than 0.45, and the unit water consumption should be less than 200kg / m 3 . In order to ensure the wor...

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PUM

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Abstract

The invention discloses an arch bridge structure adopting foam concrete and corrugated steel plates, which comprises a left reinforced concrete foundation, a right reinforced concrete foundation, an arch ring arranged between the left reinforced concrete foundation and the right reinforced concrete foundation, and filling in The foam concrete filling body above and on both sides of the arch ring, the arch ring includes a concrete arch slab and a steel plate arch shell made of corrugated steel plates, the plate arch shell and the concrete arch slab are anchored and connected, and the bridge deck pavement structure is laid on foam concrete on the filler. The arch bridge structure has the characteristics of light weight, strong spanning capacity, strong adaptability to deformation and high bearing capacity. The invention discloses a construction method of an arch bridge structure, which comprises the steps of foundation construction, arch ring construction, foam concrete filling body construction, bridge deck pavement structure pavement construction and the like. The construction method can conveniently and efficiently complete the construction of the arch bridge structure.

Description

technical field [0001] The invention belongs to the technical field of arch bridges, in particular to an arch bridge structure using foam concrete and corrugated steel plates and a construction method thereof. Background technique [0002] In the construction of domestic highways and railways, medium bridges, small bridges and culverts occupy a relatively large proportion, and most of the design of small and medium bridges and culverts adopt reinforced concrete or masonry structures. Reinforced concrete or masonry structure requires a large amount of masonry, complicated construction and long construction period. Under complex geological conditions, foundation treatment, foundation engineering and substructure account for a large amount of work, making construction difficult. Some structures are generally poor in adapting to foundation deformation and seismic performance. When the foundation is unevenly deformed, a large stress will be generated in the structure; if the str...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D4/00E02D27/00E01D21/00E01D101/26
CPCE01D4/00E01D21/00E01D2101/268E02D27/00
Inventor 原喜忠王立鹏欧阳煜
Owner CHANGAN UNIV