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A kind of small bridge and its construction method

A bridge and small technology, which is applied to the structure and construction of small bridges, can solve the problems that wood is not resistant to corrosion, and wooden bridges are easily washed out or washed away.

Inactive Publication Date: 2018-08-28
JIANGSU SITONG ROAD & BRIDGE ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The original method of building this kind of bridge is to use wood directly on both sides of the bank. The problem is that the wood itself is not corrosion-resistant. In addition, sometimes the river is flooded, and the wooden bridge is easy to be washed away or washed away. Design a low-cost, durable Such bridges are necessary

Method used

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  • A kind of small bridge and its construction method
  • A kind of small bridge and its construction method
  • A kind of small bridge and its construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] as attached figure 1 As shown, a small bridge includes a bridge span structure, an abutment and a foundation, and the main stress-bearing part of the bridge span structure is a number of steel pipes spanning both banks. Steel pipes have low self-weight and can obtain large bearing capacity, which is very suitable for such small bridges.

[0028] as attached figure 2 As shown, the abutment is composed of steel pipes, steel plates and bolts. The steel plates clamp the steel pipes up and down, and the bolts penetrate the steel plates and steel pipes from top to bottom. The foundation is the steel plates buried in the soil. There are some nuts matched with bolts under the steel plate, and the nuts and bolts fix the steel pipe between the upper and lower steel plates. Several nuts matching the bolts are fixed on the foundation, and the steel plate and the bolts are connected through the nuts. The length of the bolt is greater than the height difference between the abutme...

Embodiment 2

[0037] The difference between embodiment 2 and embodiment 1 is that, as attached Figure 4 As shown, the steel plates on the abutments at each end hold more than one structure of steel pipes, and these structures share a foundation or each has an independent foundation. This design is very effective in the later maintenance of the bridge. When the originally designed abutment and foundation are deformed and become unstable, this structure can be added at both ends of the bridge.

Embodiment 3

[0039] Embodiment 3 The difference of Embodiment 1 is that in step b of a construction method for a small bridge, the soil layer at the bottom of the cave is compacted, the concrete pile foundation is poured, and the foundation is buried in the pile foundation. If there are many floods in the small river and the bank structure is unstable, the compressive strength and stability of the bridge can be improved by embedding the foundation in the concrete pile foundation.

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Abstract

The invention aims to provide a low-cost long-service-life bridge, wherein the bridge is suitable for brooks and small rivers, only people and domestic animals can pass the bridge, and the span of the bridge is 1-10 meters. The small-sized bridge comprises a bridge span structure, bridge abutments and bases, wherein the main stress part of the bridge span structure comprises a plurality of steel pipes which span a river and are attached to two banks; the bridge abutments are formed by steel pipes, steel plates and bolts; the upper and lower steel plates clamp the steel pipes; the bolts penetrate through the steel plates and the steel pipes from top to bottom; the bases are steel plates which are buried in soil, and the steel plates are connected with the bolts of the bridge abutments by virtue of threaded structures. As shown above, the bridge is simple in structure, and easy to construct, and meanwhile, the whole material is steel, so the bridge is long in service life.

Description

technical field [0001] The invention relates to the technical field of bridges, in particular to a structure of a small bridge and a construction method thereof. Background technique [0002] According to the definition of Baidu Encyclopedia, a bridge refers to a building built for roads to cross natural or artificial obstacles. [0003] The bridge is generally composed of the following parts: 1. The bridge span structure is the main load-bearing structure that crosses obstacles when the line is interrupted. 2. Piers and abutments are buildings that support the bridge span structure and transmit live loads such as dead loads and vehicles to the foundation. The bridge abutment is usually set at both ends of the bridge. In addition to the above functions, it is also connected with the embankment to resist the earth pressure of the embankment and prevent the landslide and collapse of the embankment filling. 3. The bottom part of the foundation piers and abutments that transfe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D1/00E01D21/00
Inventor 张美娇李羲张银山
Owner JIANGSU SITONG ROAD & BRIDGE ENG
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