Novel steel box girder

Abstract

The utility model discloses a novel steel box girder which comprises a square body, a jig frame is arranged on one side of the square body, the square body is composed of two hollow box bodies, each hollow box body comprises a top plate connected with the jig frame, a bottom plate parallel to the top plate and a plurality of web plates, and the web plates are arranged between the top plate and the bottom plate. The steel box girder has the advantages of being simple in structure and low in quality requirement, and therefore the situation that the steel box girder is reworked due to the fact that the quality of the steel box girder is not qualified can be greatly reduced, and the construction period is prevented from being prolonged and construction cost is prevented from being increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to bridge and tunnel building technical field, concretely relates to a novel steel box girder. BACKGROUND

[0002] Steel box girder is also called steel plate box girder, and is a common structure form of large-span bridge.

[0003] The current steel box girder is extremely high in quality requirement due to complex structure design. However, in actual construction, it is impossible to completely construct according to the standard, so the quality cannot be guaranteed, and the problem of rework due to unqualified steel box girder quality often exists, which causes the extension of construction period and the increase of construction cost.

[0004] Therefore, it is necessary to propose a novel steel box girder, which is simple in structure and low in quality requirement, so as to greatly reduce the rework due to unqualified steel box girder quality, avoid the extension of construction period and the increase of construction cost. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the defects of the prior art, and proposes a novel steel box girder, which is simple in structure and low in quality requirement, so as to greatly reduce the rework due to unqualified steel box girder quality, avoid the extension of construction period and the increase of construction cost.

[0006] The utility model aims at overcoming the defects of the prior art, and proposes a novel steel box girder, which is simple in structure and low in quality requirement, so as to greatly reduce the rework due to unqualified steel box girder quality, avoid the extension of construction period and the increase of construction cost.

[0007] Two hollow box bodies are adjacently arranged, and a first reinforcing rib for connecting the two hollow box bodies is arranged on the adjacent side of the two hollow box bodies.

[0008] A second reinforcing rib for connecting the cradle is arranged on the top plate, and the second reinforcing rib is in U shape.

[0009] A plurality of third reinforcing ribs are uniformly arranged on the inner wall of the web plate.

[0010] A plurality of fourth reinforcing ribs are uniformly arranged on the inner wall of the bottom plate.

[0011] An entrance and exit is arranged on the hollow box body.

[0012] Wing plates connected with the cradle are arranged on the upper end of the two sides of the square body.

[0013] A support is arranged in the hollow box body.

[0014] The bottom plate and the top plate are provided with T-shaped grooves on one side adjacent to the web plate, the T-shaped grooves are open at one end and sealed at the other end, the web plate is provided with connecting parts at the upper and lower ends matched with the T-shaped grooves, and the connecting parts are detachably arranged in the T-shaped grooves.

[0015] The inner walls of the two sides of the T-shaped groove are uniformly provided with a plurality of limiting grooves, a sliding rod is slidably arranged in the limiting groove, a wedge block is arranged at the end of the sliding rod, a reset spring is arranged on the sliding rod, and the two ends of the reset spring are respectively abutted with the wedge block and the inner wall of the limiting groove, and the two sides of the connecting part are provided with wedge-shaped openings corresponding to the number and position of the wedge blocks.

[0016] The utility model discloses a beneficial effect is: the utility model discloses merely through setting up two hollow box bodies and forming the square body, only can played to the stable support of the jig, relative to the existing steel box girder, the structure of whole steel box girder is simplified, and the quality requirement is reduced, thereby can greatly reduce the rework condition of unqualified steel box girder quality, avoid the extension of construction period and the increase of construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the schematic diagram of the utility model;

[0018] Figure 2 It is the connecting part connecting view;

[0019] Figure 3 It is the limiting groove connecting view;

[0020] In the drawing, 1, hollow box body; 2, top plate; 3, bottom plate; 4, web plate; 5, jig; 6, first reinforcing rib; 7, second reinforcing rib; 8, third reinforcing rib; 9, fourth reinforcing rib; 10, entrance and exit; 11, wing plate; 12, square body; 13, support; 14, T-shaped groove; 15, connecting part; 16, limiting groove; 17, sliding rod; 18, wedge block; 19, reset spring; 20, wedge-shaped opening. DETAILED DESCRIPTION

[0021] The technical scheme of the utility model will be described clearly and completely in combination with embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] It is explained that the orientation concepts of "left", "right", "up", "down", "front", "back", "inner" and "outer" in the following scheme are all relative directions, which will not be listed one by one here.

[0023] The utility model provides a novel steel box girder, including square body 12. Square body 12 is formed by two connected hollow box 1. Hollow box 1 includes top plate 2 and bottom plate 3 arranged in parallel. The four sides of the top plate 2 and the bottom plate 3 are provided with webs 4. The square body 12 is provided with a cradle 5 on the upper side. The top plate 2 is provided with a U-shaped second reinforcing rib 7, so that the cradle 5 is firmly arranged on the upper side of the square body 12. The square body 12 is provided with a wing plate 11 connected to the cradle 5 on both sides. The webs 4 on the adjacent side of the two hollow boxes 1 are stably connected by a first reinforcing rib 6. The inner wall of the web 4 is provided with a third reinforcing rib 8, and the inner wall of the bottom plate 3 is provided with a fourth reinforcing rib 9. The hollow box 1 is provided with an entrance and exit 10. The hollow box 1 is provided with a support 13.

[0024] The lower side of the top plate 2 and the upper side of the bottom plate 3 are provided with T-shaped grooves 14 corresponding to the position and number of the webs 4. The rear end of the T-shaped groove 14 is closed, and the front end is open. The two sides of the web 4 are provided with connecting parts 15 matching the shape of the T-shaped groove 14. The inner walls of the two sides of the T-shaped groove 14 are uniformly provided with a plurality of limiting grooves 16 along the extension direction. The limiting grooves 16 are slidably provided with a slide rod 17. The slide rod 17 is provided with a wedge block 18 near one end of the connecting part 15. The side near the front end of the wedge block 18 is a slope, and the side near the rear end is a plane. The slide rod 17 is provided with a return spring 19. The two ends of the return spring 19 are connected to the wedge block 18 and the limiting groove 16 respectively. The two sides of the connecting part 15 are provided with wedge-shaped openings 20 corresponding to the number, position and shape of the wedge block 18. When the connecting part 15 is installed in the T-shaped groove 14, the wedge block 18 is firmly abutted in the wedge-shaped opening 20 under the action of the return spring 19.

[0025] The above is only the preferred embodiment of the utility model, it should be understood that the utility model is not limited to the form disclosed in this paper, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified by the above description or related technical or knowledge within the scope of the concept described in this paper. The modification and change made by the person skilled in the art without departing from the spirit and scope of the utility model shall be within the protection scope of the claims attached to the utility model.

Claims

1. A new type of steel box girder, characterized in that, The utility model provides a square body, one side of the square body is provided with a tire frame, the square body is composed of two hollow boxes, the hollow box includes a top plate connected with the tire frame, a bottom plate parallel with the top plate and a plurality of webs, the web is arranged between the top plate and the bottom plate.

2. A new type of steel box girder according to claim 1, characterized by: Two adjacent hollow boxes are provided, and a first reinforcing rib for connecting the two is arranged on one side of the two adjacent hollow boxes.

3. A new type of steel box girder according to claim 1, characterized by: A second reinforcing rib in the form of a U-shaped is arranged on the top plate for connecting with the tire frame.

4. A new type of steel box girder according to claim 1, characterized by: A plurality of third reinforcing ribs are uniformly arranged on the inner wall of the web.

5. A new type of steel box girder according to claim 1, characterized by: A plurality of fourth reinforcing ribs are uniformly arranged on the inner wall of the bottom plate.

6. A new type of steel box girder according to claim 1, characterized by: An entrance and exit is formed on the hollow box.

7. A new type of steel box girder according to claim 1, characterized by: Wing plates connected with the tire frame are arranged on the upper ends of both sides of the square body.

8. A new type of steel box girder according to claim 1, characterized by: A support is arranged in the hollow box.

9. A new type of steel box girder according to claim 1, characterized by: T-shaped grooves matched with the positions and number of the webs are formed on the adjacent sides of the bottom plate and the top plate, one end of the T-shaped groove is open, and the other end is sealed, the upper and lower ends of the web are provided with connecting parts matched with the T-shaped groove, and the connecting parts are detachably arranged in the T-shaped groove.

10. A new type of steel box girder according to claim 9, characterized by: A plurality of limiting grooves are uniformly formed on the inner walls of both sides of the T-shaped groove, a sliding rod is slidably arranged in the limiting groove, a wedge-shaped block is arranged at the end of the sliding rod, a reset spring is sleeved on the sliding rod, the two ends of the reset spring are respectively abutted with the wedge-shaped block and the inner wall of the limiting groove, and wedge-shaped openings matched with the number and positions of the wedge-shaped blocks are formed on both sides of the connecting part.

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