Bridge approach composite structure with low additional stress

Abstract

The utility model provides a low-additional-stress bridge approach road composite structure, and relates to the technical field of bridge approach roads, the low-additional-stress bridge approach road composite structure comprises two sets of box bodies, the box bodies are poured in the road ground through reinforced concrete, a box type void structure is formed, a mounting table is arranged at the bottom of the inner side of each box body, and pipelines are laid on the two sides of the upper end of each mounting table; a bridge floor is flatly paved in the middle of the top ends of the two groups of box bodies; a bottom plate is arranged at the bottoms of the box bodies and is poured in the road ground through reinforced concrete, a cushion layer and a waterproof layer are laid at the bottom of the bottom plate, and a door opening is formed between the two box bodies and is formed in the bottoms of the two box bodies. According to the utility model, the reinforced concrete box body is arranged, and the bridge floor and the internal pipeline are laid on the top of the box body, so that the requirements of upper passing and laying and overhauling of the internal pipeline can be met simultaneously, the bearing capacity requirement is reduced, and the effects of reducing the cost and facilitating pipeline overhauling are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge approach roads, in particular to a bridge approach road composite structure with low additional stress. Background Art

[0002] As the construction of national infrastructure is intensified, the construction of bridges and pipelines is increasing. Limited by land use and geological conditions, the foundation treatment of bridge approaches and the occupation of pipeline positions by approach construction have become construction problems. Traditional treatment methods generally solve the foundation treatment problem through various composite foundations and other measures. Pipeline laying is generally solved by expropriating more land or laying part of the pipeline under the expressway. Although it can solve the foundation treatment and pipeline laying problems at the approach to a certain extent, it faces problems such as increased investment and inconvenient pipeline maintenance.

[0003] To solve the above problems, we propose a bridge approach composite structure with low additional stress to solve the above problems. Utility Model Content

[0004] In view of the problem that the existing bridge approach structure has high requirements on foundation bearing capacity and occupies pipe positions, the purpose of the utility model is to provide a bridge approach composite structure with low additional stress, which can simultaneously solve the pipeline laying problem and has low investment.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A composite structure of a bridge approach with low additional stress comprises a box body, wherein the box body has two groups and both are cast in the road surface with reinforced concrete to form a box-type hollow cabin structure, a mounting platform is arranged at the inner bottom of the box body, and pipelines are laid on both sides of the upper end of the mounting platform; and a bridge deck is laid flat at the middle of the top end of the two groups of the box bodies.

[0007] Preferably, a bottom plate is provided at the bottom of the box body, and the bottom plate is cast in the road surface using reinforced concrete, and a cushion layer and a waterproof layer are laid at the bottom of the bottom plate.

[0008] Preferably, a door opening is provided between the two groups of the boxes, and the door opening is opened at the bottom of the two groups of boxes to facilitate the staff to move back and forth between the two boxes, thereby providing convenience for the inspection and maintenance of the pipeline.

[0009] Preferably, a ventilation window is provided in the middle of the outer wall of the box body to provide ventilation.

[0010] Preferably, water diversion grooves are provided on the lower sides of both ends of the mounting platform, and the water diversion grooves are laid on both ends of the inner bottom of the box body.

[0011] Preferably, the two groups of boxes share a middle wall.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In this scheme, by setting up a reinforced concrete box, laying a bridge deck and internal pipes on the top of the box, it can simultaneously meet the upper traffic and internal pipe laying and maintenance, and reduce the bearing capacity requirements;

[0014] The utility model has the following advantages:

[0015] 1. It is suitable for the overlapping areas of various pipelines and bridge approaches. The empty compartment inside the box can be used to lay pipelines and realize intensive use of space;

[0016] 2. The pipeline maintenance is convenient without affecting the access road, thus avoiding road congestion;

[0017] 3. The interior of the box is a box-shaped empty cabin with no fill, low additional stress, and low foundation bearing capacity requirements, which can greatly reduce the cost of foundation treatment, simple structure and low investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structural structure of the utility model.

[0019] In the figure: 1. Road surface; 2. Box; 3. Base plate; 4. Mounting platform; 5. Pipeline; 6. Water gutter; 7. Doorway; 8. Ventilation window; 9. Middle wall; 10. Bridge deck. DETAILED DESCRIPTION

[0020] The technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:

[0021] Example: Refer to Figure 1 As shown, a composite structure of a bridge approach with low additional stress in this embodiment includes a box body 2. There are two groups of box bodies 2, and both are cast in the road surface 1 with reinforced concrete to form a box-type empty cabin structure. A mounting platform 4 is provided at the inner bottom of the box body 2. Pipes 5 are laid on both sides of the upper end of the mounting platform 4. The pipes 5 are laid in the empty cabin inside the box body 2, thereby providing convenience for the laying and maintenance of the pipes 5.

[0022] And, the middle part of the top end of the two sets of boxes 2 is paved with a bridge deck 10. The bridge deck 10 is used for vehicles to travel.

[0023] A bottom plate 3 is provided at the bottom of the box body 2. The bottom plate 3 is poured in the road surface 1 with reinforced concrete. A cushion layer and a waterproof layer are laid at the bottom of the bottom plate 3 to play a waterproof and supporting role.

[0024] A door opening 7 is provided between the two groups of boxes 2. The door opening 7 is opened at the bottom of the two groups of boxes 2. The door opening 7 is convenient for staff to walk back and forth between the two groups of boxes 2, providing convenience for the maintenance and inspection of the boxes 2.

[0025] In some examples, a ventilation window 8 is provided in the middle of the outer wall of the box body 2 to provide ventilation.

[0026] In some examples, water diversion grooves 6 are provided at the lower sides of both ends of the mounting platform 4. The water diversion grooves 6 are laid at both ends of the inner bottom of the box body 2, and the water diversion grooves 6 are used for drainage.

[0027] In some examples, two groups of cabinets 2 share a middle wall 9 .

[0028] The working principle of the utility model is:

[0029] By providing a reinforced concrete box 2, a bridge deck 10 and an internal pipeline 5 are laid on the top of the box 2, which can simultaneously meet the needs of the upper bridge deck 10 for passage and the laying and maintenance of the internal pipeline 5, and reduce the bearing capacity requirements;

[0030] Specific implementation methods

[0031] First, a cabin of the reinforced concrete box body 2 is constructed at a selected position on the road surface 1, and then a mounting platform 4 is laid in the cabin of the box body 2. Then, the pipeline 5 is laid on the mounting platform 4. Finally, the top of the box body 2 is capped and the bridge deck 10 is erected. Therefore, the utility model can simultaneously meet the needs of the upper bridge deck 10 for passage and the laying and maintenance of the internal pipeline 5, and reduce the bearing capacity requirements.

[0032] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A composite structure of a bridge approach with low additional stress, characterized in that: It comprises a box body (2), wherein the box body (2) has two groups and both are cast in the road surface (1) using reinforced concrete to form a box-shaped empty cabin structure, a mounting platform (4) is provided at the inner bottom of the box body (2), and pipes (5) are laid on both sides of the upper end of the mounting platform (4); Furthermore, the middle parts of the top ends of the two groups of boxes (2) are paved with a bridge deck (10).

2. A low additional stress bridge approach composite structure according to claim 1, characterized in that: A bottom plate (3) is provided at the bottom of the box body (2); the bottom plate (3) is cast in the road surface (1) using reinforced concrete; a cushion layer and a waterproof layer are provided at the bottom of the bottom plate (3).

3. A composite structure of a bridge approach with low additional stress according to claim 2, characterized in that: A door opening (7) is provided between the two groups of box bodies (2), and the door opening (7) is opened at the bottom of the two groups of box bodies (2).

4. A low additional stress bridge approach composite structure according to claim 3, characterized in that: A ventilation window (8) is provided in the middle of the outer wall of the box body (2).

5. A composite structure of a bridge approach with low additional stress according to claim 4, characterized in that: Water diversion grooves (6) are provided at the lower sides of both ends of the mounting platform (4), and the water diversion grooves (6) are laid at both ends of the inner bottom of the box body (2).

6. A composite structure of a bridge approach with low additional stress according to claim 5, characterized in that: The two groups of boxes (2) share a middle wall (9).

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