Special-shaped steel box girder with spatial curved surface

Abstract

The utility model discloses a special-shaped steel box girder with a spatial curved surface, which relates to the technical field of steel box girders and comprises a curved bottom plate, a top plate is arranged above the curved bottom plate, a supporting mechanism is arranged between the curved bottom plate and the top plate, and the supporting mechanism consists of a plurality of supporting components. The supporting assembly is composed of a cross beam, an upper connecting steel block, a supporting steel rod and a lower connecting steel block, the cross beam is located at the upper end of the curved bottom plate, and a mounting groove acting on the cross beam is formed in the upper end of the curved bottom plate. The upper connecting steel block at the bottom of the cross beam is just aligned with the two lower connecting steel blocks on the inner wall of the curved bottom plate, and the supporting steel rods are transversely inserted along the side of the upper clamping groove and the side of the lower clamping groove, so that the inner wall of the curved bottom plate, the two supporting steel rods and the cross beam can form three triangular supporting structures, and therefore the overall strength of the steel box girder is improved; and the supporting mechanism is convenient to mount.

Description

Technical Field

[0001] This utility model relates to the field of steel box girder technology, specifically a spatial curved irregular steel box girder. Background Technology

[0002] Bridges generally refer to structures erected over rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. Steel box girders are a type of beam used in bridge engineering. They are hollow inside with flanges on both sides of the upper part, resembling a box, hence the name. However, existing internal support measures for steel box girders are usually composed of vertical plates, as shown in Chinese patent document CN214739254U. This type of support measure concentrates stress in one place, offering limited improvement in support effectiveness. Therefore, a spatially curved irregular-shaped steel box girder is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a spatial curved irregular steel box girder to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a spatial curved irregular steel box girder, including a curved base plate, a top plate above the curved base plate, and a support mechanism between the curved base plate and the top plate. The support mechanism consists of multiple support components, each consisting of a crossbeam, an upper connecting steel block, a supporting steel rod, and a lower connecting steel block. The crossbeam is located at the upper end of the curved base plate, and an installation groove acting on the crossbeam is opened at the upper end of the curved base plate. An upper connecting steel block integrally formed with the crossbeam is provided at the bottom center of the crossbeam. Upper slots are opened on both sides of the bottom of the upper connecting steel block, and supporting steel rods are slidably inserted into the two upper slots. The two lower connecting steel blocks are fixedly connected to the bottom sides of the inner cavity of the curved base plate, and lower slots adapted to the bottoms of the two supporting steel rods are opened on the upper sides of the two lower connecting steel blocks.

[0005] As a further preferred embodiment of this technical solution, the mounting groove and the crossbeam are mutually compatible.

[0006] As a further preferred embodiment of this technical solution, the plurality of the support components are arranged in a linear array.

[0007] As a further preferred embodiment of this technical solution, sealing plates are fixedly connected to both sides of the upper end of the curved base plate.

[0008] As a further preferred embodiment of this technical solution, the bottom of the top plate is provided with a groove, and the distance between the sidewalls of the two sealing plates that are far apart from each other is equal to the width of the groove.

[0009] As a further preferred embodiment of this technical solution, a plurality of reinforcing plates are fixedly connected to the inner wall of the curved base plate, and the plurality of reinforcing plates are arranged in a linear array.

[0010] As a further preferred embodiment of this technical solution, the length of the crossbeam is greater than the width of the curved bottom plate, and the length of the crossbeam is less than the width of the top plate.

[0011] This utility model provides a spatial curved irregular steel box girder, which has the following beneficial effects:

[0012] This utility model installs the crossbeam in the mounting groove at the upper end of the curved base plate, so that the upper connecting steel block at the bottom of the crossbeam is aligned with the two lower connecting steel blocks on the inner wall of the curved base plate. The support steel rod is inserted laterally along the sides of the upper and lower slots, so that the inner wall of the curved base plate, the two support steel rods and the crossbeam form three triangular support structures, thereby improving the overall strength of the steel box girder, and the support mechanism is easy to install. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 This is a breakdown diagram of the overall structure of this utility model;

[0015] Figure 3 This is a schematic diagram of a portion of the structure of this utility model;

[0016] Figure 4 This is a front view of the overall structure of this utility model;

[0017] In the diagram: 1. Top plate; 2. Curved bottom plate; 3. Sealing plate; 4. Crossbeam; 5. Upper connecting steel block; 6. Supporting steel rod; 7. Lower connecting steel block; 8. Upper slot; 9. Lower slot; 10. Mounting slot; 11. Reinforcing plate; 12. Groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] This utility model provides a technical solution: such as Figures 1 to 4As shown, in this embodiment, a spatial curved irregular steel box girder includes a curved base plate 2, a top plate 1 above the curved base plate 2, and a support mechanism between the curved base plate 2 and the top plate 1. The support mechanism consists of multiple support components arranged in a linear array. Each support component consists of a crossbeam 4, an upper connecting steel block 5, a supporting steel rod 6, and a lower connecting steel block 7. The crossbeam 4 is located at the upper end of the curved base plate 2. An installation groove 10 acting on the crossbeam 4 is opened at the upper end of the curved base plate 2. The installation groove 10 is adapted to the crossbeam 4. An upper connecting steel block 5 integrally formed with the crossbeam 4 is provided at the bottom center of the crossbeam 4. Upper slots 8 are opened on both sides of the bottom of the upper connecting steel block 5. Supporting steel rods 6 are slidably inserted into the two upper slots 8. Two lower connecting steel blocks 7 are fixedly connected to the bottom sides of the inner cavity of the curved base plate 2. Lower slots 9 adapted to the bottom of the two supporting steel rods 6 are opened on the upper sides of the two lower connecting steel blocks 7.

[0020] Among them, sealing plates 3 are fixedly connected to the upper two sides of the curved base plate 2.

[0021] The sealing plate 3 can be used to enclose the crossbeam 4 installed in the mounting slot 10.

[0022] The top plate 1 has a groove 12 at its bottom, and the distance between the side walls of the two sealing plates 3 that are far apart from each other is equal to the width of the groove 12.

[0023] This configuration ensures that the bottom of the top plate 1 does not interfere with the sealing plate 3.

[0024] Among them, multiple reinforcing plates 11 are fixedly connected to the inner wall of the curved base plate 2, and the multiple reinforcing plates 11 are arranged in a linear array.

[0025] The structural strength of the curved base plate 2 can be improved by setting the reinforcing plate 11.

[0026] The length of the crossbeam 4 is greater than the width of the curved bottom plate 2, and the length of the crossbeam 4 is less than the width of the top plate 1.

[0027] With this configuration, the two ends of the crossbeam 4 can extend to the sides of the curved base plate 2 to support the extended positions on both sides of the top plate 1.

[0028] This utility model provides a spatial curved irregular steel box girder, the specific working principle of which is as follows:

[0029] When installing the support mechanism, the crossbeam 4 is installed in the mounting groove 10 at the upper end of the curved base plate 2, and the outer wall of the crossbeam 4 is fixed to the inner wall of the mounting groove 10 by welding. At this time, the upper connecting steel block 5 at the bottom of the crossbeam 4 is aligned with the two lower connecting steel blocks 7 on the inner wall of the curved base plate 2. The support steel rod 6 is placed into the interior of the curved base plate 2 from above, and then inserted laterally along the sides of the upper slot 8 and the lower slot 9. The support steel rod 6, the upper connecting steel block 5, and the lower connecting steel block 7 are fixed by welding. Together, the inner wall of the curved base plate 2, the two supporting steel rods 6, and the crossbeam 4 form three triangular support structures, thereby improving the overall strength of the steel box girder. This support mechanism also has the advantage of convenient installation. Then, the crossbeam 4 installed in the installation groove 10 is sealed by the set sealing plate 3, which further improves the firmness of the crossbeam 4 after installation. Finally, the top plate 1 is installed on the upper surface of the curved base plate 2 by concrete pouring. The support plate used for pouring concrete can be removed through the gap between the two supporting steel rods 6.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spatial curved surface special-shaped steel box girder, comprising a curved bottom plate (2), characterized in that: The top plate (1) is arranged above the curved bottom plate (2), a supporting mechanism is arranged between the curved bottom plate (2) and the top plate (1), the supporting mechanism is composed of a plurality of supporting assemblies, the supporting assembly is composed of a cross beam (4), an upper connecting steel block (5), a supporting steel pole (6) and a lower connecting steel block (7), the cross beam (4) is located at the upper end of the curved bottom plate (2), the upper end of the curved bottom plate (2) is provided with a mounting groove (10) acting on the cross beam (4), the bottom middle part of the cross beam (4) is provided with the upper connecting steel block (5) integrated therewith, the bottom sides of the upper connecting steel block (5) are respectively provided with upper clamping grooves (8), the supporting steel poles (6) are respectively and slidably arranged in the two upper clamping grooves (8), the two lower connecting steel blocks (7) are respectively fixedly connected to the bottom sides of the inner cavities of the curved bottom plate (2), and the upper sides of the two lower connecting steel blocks (7) are respectively provided with lower clamping grooves (9) matched with the bottom parts of the two supporting steel poles (6).

2. The spatial curved surface special-shaped steel box girder according to claim 1, characterized in that: The mounting groove (10) is matched with the cross beam (4).

3. The spatial curved surface special-shaped steel box girder according to claim 1, characterized in that: The plurality of supporting assemblies are arranged in a linear array.

4. The spatial curved surface special-shaped steel box girder according to claim 1, characterized in that: The upper sides of the two ends of the curved bottom plate (2) are respectively fixedly connected with the sealing plates (3).

5. The spatial curved surface special-shaped steel box girder according to claim 4, characterized in that: The bottom of the top plate (1) is provided with a groove (12), and the distance between the mutually distant side walls of the two sealing plates (3) is equal to the width of the groove (12).

6. The spatial curved surface special-shaped steel box girder according to claim 1, characterized in that: A plurality of reinforcing plates (11) are fixedly connected to the inner wall of the curved bottom plate (2), and the plurality of reinforcing plates (11) are arranged in a linear array.

7. The spatial curved surface special-shaped steel box girder according to claim 1, characterized in that: The length of the cross beam (4) is greater than the width of the curved bottom plate (2), and the length of the cross beam (4) is less than the width of the top plate (1).

Images