Reinforced modular shallow-buried telescopic device for bridge

Abstract

The utility model relates to the technical field of bridge expansion devices, and discloses a reinforced modular shallow-buried expansion device for a bridge, which comprises middle beam shallow-buried deformed steel, the top of the middle beam shallow-buried deformed steel is fixedly connected with reinforced T-shaped steel, and the top of the reinforced T-shaped steel is provided with a displacement control box. Side beam RG deformed steel is installed on the left side and the right side of the bottom of the displacement control box, a displacement box is installed at the rear end of the top of the middle beam shallow-buried deformed steel, the tops of the two pieces of side beam RG deformed steel are fixedly connected with a plurality of anchoring rib assemblies, and the sides, away from each other, of the middle beam shallow-buried deformed steel are fixedly connected with a plurality of reinforcing corners. In the utility model, the reinforcing T-shaped steel and the reinforcing angle are arranged on the middle beam shallow-buried deformed steel, one end of the reinforcing T-shaped steel is connected with the cross beam to improve the stability of the cross beam, and the other end of the reinforcing T-shaped steel is close to the chain plate box and integrally reinforced below the middle beam, so that the safety in driving can be provided, and the strength of the middle beam deformed steel is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion devices, in particular to a reinforced modular shallow buried expansion device for bridges. Background Art

[0002] The bridge expansion device is a very important component of bridge engineering. It can adjust the length of the bridge when the length of the bridge changes to ensure the safety and stability of the bridge. In recent years, with the rapid development of my country's transportation industry, the construction of bridge projects has increased, and the application of bridge expansion devices has become more and more extensive. However, during the use of bridge expansion devices, they are often affected by various factors, resulting in a decrease in their performance or even damage. In order to improve the use effect and durability of bridge expansion devices, it is very important to reasonably design, select and construct them.

[0003] The most commonly used bridge expansion devices are modular expansion devices and comb plate expansion devices. The modular expansion device is composed of side beams, middle beams, cross beams and linkage mechanisms. In particular, the shallow-buried expansion device has a smaller cross-section than the middle beam of the ordinary modular expansion device due to the limitation of the installation structure. The cross-sectional area of ​​the ordinary expansion device's cross beam is 4926mm², and the cross-sectional area of ​​the shallow-buried steel cross beam is 4385mm², which is 11% smaller than that of the ordinary middle beam. The contact area with the cross beam is small. This structure will have the risk of tearing the welding surface of the middle beam and the cross beam and the danger of deformation or even shearing of the middle beam steel during the operation of the bridge. Therefore, a reinforced modular shallow-buried expansion device for bridges is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a reinforced modular shallow buried telescopic device for bridges, aiming to improve the risk of tearing of the welding surface of the central beam and the cross beam and the problem of deformation or even shearing of the central beam steel during the operation of the bridge in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a reinforced modular shallow buried telescopic device for bridges, comprising a shallow buried special-shaped steel of a central beam, the top of the shallow buried special-shaped steel of the central beam is fixedly connected with a reinforced T-shaped steel, the top of the reinforced T-shaped steel is installed with a displacement control box, the bottom left and right sides of the displacement control box are installed with side beam RG special-shaped steel, the top rear end of the shallow buried special-shaped steel of the central beam is installed with a displacement box, the tops of the two side beam RG special-shaped steels are fixedly connected with a plurality of anchor bar assemblies, and the farthest sides of the shallow buried special-shaped steel of the central beam are fixedly connected with a plurality of reinforced angles.

[0006] Through the above technical solution:

[0007] As a further description of the above technical solution:

[0008] The tops of the two side beam RG special-shaped steels are fixedly connected to the outer shell, and the left and right sides of the displacement control box are arranged between adjacent outer shells.

[0009] The outer walls of the displacement box are each installed with a plurality of protective plates.

[0010] The farthest side of the reinforced T-shaped steel is fixedly connected with a reinforcement plate.

[0011] The plurality of anchor bar assemblies are distributed at equal distances.

[0012] The outer walls of the plurality of anchor bar assemblies are all rounded.

[0013] The two side beam RG special-shaped steels are symmetrically designed.

[0014] The reinforcement angle is in a triangular shape.

[0015] The utility model has the following beneficial effects:

[0016] In the utility model, reinforced T-shaped steel and reinforced angle are installed on the shallow buried special-shaped steel of the middle beam. One end of the reinforced T-shaped steel is connected to the cross beam to improve the stability of the cross beam, and the other end is close to the chain plate box. The whole is reinforced under the middle beam, which can provide safety during driving and greatly improve the strength of the special-shaped steel of the middle beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front end structure of a reinforced modular shallow buried telescopic device for bridges proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the back structure of a reinforced modular shallow buried telescopic device for bridges proposed by the utility model;

[0019] Figure 3 The utility model is a schematic diagram of a middle beam reinforcement form of a reinforced modular shallow buried telescopic device for a bridge.

[0020] Legend:

[0021] 1. Side beam RG special-shaped steel; 2. Middle beam shallow buried special-shaped steel; 3. Reinforced T-shaped steel; 4. Reinforced angle; 5. Anchor bar assembly; 6. Displacement control box; 7. Displacement box; 8. Outer shell; 9. Protective plate; 10. Reinforcement plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a reinforced modular shallow buried telescopic device for a bridge, comprising a shallow buried special-shaped steel 2 of a central beam, a reinforced T-shaped steel 3 is fixedly connected to the top of the central beam shallow buried special-shaped steel 2, a displacement control box 6 is installed on the top of the reinforced T-shaped steel 3, side beam RG special-shaped steel 1 is installed on the left and right sides of the bottom of the displacement control box 6, a displacement box 7 is installed on the top rear end of the central beam shallow buried special-shaped steel 2, a plurality of anchor bar assemblies 5 are fixedly connected to the tops of the two side beam RG special-shaped steels 1, a plurality of reinforced corners 4 are fixedly connected to the far side of the central beam shallow buried special-shaped steel 2, a plurality of anchor bar assemblies 5 are equidistantly distributed, the outer walls of the plurality of anchor bar assemblies 5 are rounded, the two side beam RG special-shaped steels 1 are symmetrically designed, and the reinforced corners 4 are triangular in shape.

[0024] Specifically, the side beam RG special-shaped steel 1 adopts RG steel, and the shallow buried special-shaped steel 2 of the middle beam adopts shallow buried middle beam steel, which effectively reduces the assembly height of the telescopic device. Reinforced T-shaped steel 3 is welded on the shallow buried special-shaped steel 2 of the middle beam, and multiple reinforcing angles 4 are fixed, which can effectively increase the stress of the shallow buried special-shaped steel 2 of the middle beam, and provide displacement caused by deflection deformation during driving without any influence when providing temperature change displacement. Reinforced T-shaped steel 3 and reinforcing angle 4 are installed on the shallow buried special-shaped steel 2 of the middle beam. One end of the reinforced T-shaped steel 3 is connected to the crossbeam to improve the stability of the crossbeam, and the other end is close to the chain box and is reinforced under the middle beam as a whole. It can provide safety during driving and greatly improve the strength of the special-shaped steel of the middle beam.

[0025] Reference Figure 1 , Figure 2 and Figure 3 The tops of the two side beams RG special-shaped steels 1 are fixedly connected with the shell 8, and the left and right sides of the displacement control box 6 are arranged between the adjacent shells 8.

[0026] Specifically, a shell 8 is installed on the top of the side beam RG special-shaped steel 1, and the shell 8 can protect the control box 6 to avoid collision damage during use.

[0027] Reference Figure 1 , Figure 2 and Figure 3The outer wall of the displacement box 7 is installed with a plurality of protective plates 9, and the opposite side of the reinforced T-shaped steel 3 is fixedly connected with a reinforcing plate 10.

[0028] Specifically, a plurality of protective plates 9 are installed around the interior of the displacement box 7 . The protective plates 9 can reduce the friction generated when the displacement box 7 is in use, thereby increasing the service life of the displacement box 7 .

[0029] Working principle: the side beam RG special-shaped steel 1 adopts RG steel, and the shallow buried special-shaped steel 2 of the middle beam adopts shallow buried middle beam steel, which effectively reduces the assembly height of the telescopic device. The shallow buried special-shaped steel 2 of the middle beam is welded with a reinforced T-shaped steel 3, and is fixed with multiple reinforced angles 4, which can effectively increase the stress of the shallow buried special-shaped steel 2 of the middle beam, and provide the displacement caused by the deflection deformation during driving without any influence when providing temperature change displacement. The shallow buried special-shaped steel 2 of the middle beam is installed with a reinforced T-shaped steel 3 and a reinforced angle 4. One end of the reinforced T-shaped steel 3 is connected to the cross beam to improve the stability of the cross beam, and the other end is close to the chain plate box. The whole is reinforced under the middle beam, which can provide safety during driving and greatly improve the strength of the special-shaped steel of the middle beam. The lower side of the shallow buried special-shaped steel 2 of the middle beam is provided with a reinforced T-shaped steel 3 and a reinforced angle 4. The cross-sectional area of ​​the shallow buried special-shaped steel 2 of the middle beam is increased by 1000mm², which is increased by about 20%, which can effectively reduce the lateral and vertical deformation during driving, and increase safety and stability.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reinforced modular shallow-buried telescopic device for a bridge, comprising a shallow-buried special-shaped steel (2) of a middle beam, characterized in that: The top of the shallow-buried center beam special-shaped steel (2) is fixedly connected to a reinforced T-shaped steel (3), the top of the reinforced T-shaped steel (3) is installed with a displacement control box (6), the bottom left and right sides of the displacement control box (6) are installed with side beam RG special-shaped steel (1), the top rear end of the shallow-buried center beam special-shaped steel (2) is installed with a displacement box (7), the tops of the two side beam RG special-shaped steels (1) are fixedly connected to a plurality of anchor bar assemblies (5), and the farthest sides of the shallow-buried center beam special-shaped steel (2) are fixedly connected to a plurality of reinforced corners (4).

2. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: The tops of the two side beam RG special-shaped steels (1) are fixedly connected to a housing (8), and the left and right sides of the displacement control box (6) are arranged between adjacent housings (8).

3. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: Multiple protective plates (9) are installed on the outer walls of the displacement box (7).

4. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: The farthest side of the reinforced T-shaped steel (3) is fixedly connected with a reinforcing plate (10).

5. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: The plurality of anchor bar assemblies (5) are distributed at equal distances.

6. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: The outer walls of the plurality of anchor bar assemblies (5) are all rounded.

7. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: The two side beam RG special-shaped steels (1) are symmetrically designed.

8. The reinforced modular shallow buried telescopic device for bridges according to claim 1, characterized in that: The reinforcement angle (4) is in a triangular shape.

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