Fabricated support for mounting steel box girder

Abstract

The utility model discloses an assembly type support for installing a steel box girder, and belongs to the field of temporary supports for steel box girders. A vertical pipe at the bottommost end is installed on a concrete base; the two ends of the supporting frame are connected with mounting seats through connecting blocks, vertical supports are mounted at the lower ends of the mounting seats, inclined supports are arranged on the side faces of the vertical supports, mounting blocks are arranged at the lower ends of the vertical supports and the lower ends of the inclined supports, the platform beam is fixed to the ground through the mounting blocks, and the vertical supports, the inclined supports and the vertical pipes support the platform beam. And due to the assembly type design, all the components can be simply, conveniently and quickly connected through fastening pieces such as bolts and nuts, and the construction efficiency is greatly improved. In addition, the parts of the support are designed in an adaptive mode, and flexible combination and adjustment can be conducted according to the specific construction environment and the installation requirement of the steel box girder. Through the design of the supporting frame and the stabilizing frame, the stability of the support is further enhanced. And meanwhile, the vertical pipe at the lowest end is mounted on the concrete base, so that the stability of the bracket is further consolidated.

Description

Technical Field

[0001] The utility model relates to the field of temporary brackets for steel box girders, in particular to an assembled bracket for installing steel box girders. Background Art

[0002] The prefabricated bracket used in the installation of steel box girders is a prefabricated, reusable, safer construction material, and does not affect the normal passage of vehicles on the road during the urban elevated road reconstruction process. Its use improves the efficiency of steel box girder erection, significantly shortens the construction period, and saves costs, achieving the goals of accelerating construction progress, reducing construction costs, and controlling construction quality. It has a good prospect for promotion and application.

[0003] After searching, it was found that the "Assembled double-door temporary support for the installation of elevated steel box girders" disclosed by Chinese patent publication number CN219753024U includes two groups of assembled temporary supports and scissors struts connecting the two groups of assembled temporary supports; each group of the assembled temporary supports includes at least a platform beam, two support foundations and four assembled columns.

[0004] The use of prefabricated supports in steel box girder installation aims to improve construction efficiency, reduce costs, and ensure quality. However, in actual use, stability issues have become increasingly prominent, particularly regarding the robustness of connection nodes. During bridge construction, the supports must withstand the weight of the steel box girder and the construction loads. Unstable node connections can cause the supports to deform or fail, delaying construction progress and potentially posing safety risks. Furthermore, factors such as material selection and structural design also affect support stability.

[0005] Another significant issue is the lack of flexibility in prefabricated supports. Bridge construction environments are diverse and complex, and supports must be flexibly adjusted and optimized based on actual conditions. However, if the support design is too rigid and lacks adaptability and adjustability, it will be difficult to adapt to these changes, thus affecting assembly efficiency. Utility Model Content

[0006] The main purpose of the utility model is to provide an assembled bracket for installing a steel box girder, which can effectively solve the problems raised in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An assembled bracket for installing a steel box girder comprises a platform beam, a platform frame and an oblique frame, wherein the platform frame is mounted on the upper end of the platform beam, and an oblique frame is provided between the platform beam and the platform frame, a passage for pedestrians is installed on the platform beam, support frames are provided at the lower parts of both ends of the platform beam, and fixing holes are opened on the end surfaces of the two support frames, and stabilizing frames are installed at the fixing holes of the support frames, and connecting blocks are connected to both ends of the support frames;

[0009] The lower end of the stabilizing frame is provided with a plurality of risers, which are stacked and fixed by connecting flanges and bolts, and the bottommost riser is installed on a concrete base;

[0010] The two ends of the support frame are connected to the mounting seats through connecting blocks, and the lower ends of the mounting seats are installed with vertical brackets. The sides of the vertical brackets are provided with oblique brackets, and the lower ends of the vertical brackets and the oblique brackets are provided with mounting blocks, which are fixed to the ground through the mounting blocks. The vertical brackets, oblique brackets and risers support the platform beams.

[0011] As a preferred solution of the present invention, the platform beam and its adapted walkway are fixed by bolts and nuts, and the platform frame and the inclined frame are fixed to the platform beam by bolts and nuts, and the platform beam and the supporting frame are fixed by bolts and nuts;

[0012] As a preferred solution of the present invention, the cross section of a single support frame is designed in an "H" shape, the fixing holes on the stabilizing frame and the support frame are aligned, and are fixed by bolts, nuts and washers;

[0013] As a preferred solution of the present invention, the connecting block and the supporting frame are designed as one piece, and the connecting block is adapted to the mounting seat, and the mounting seat is adapted to the vertical bracket;

[0014] As a preferred solution of the present invention, the vertical bracket, the mounting block and the oblique bracket are designed as one body, and a rubber sheet is bonded to the bottom surface of the mounting block;

[0015] As a preferred solution of the present invention, the side walls of the riser are annularly distributed with side strips, the riser and the connecting flange are designed as one piece, the concrete base is embedded in a pit on the ground, and the concrete base is fixed to the connecting flange by bolts.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the present utility model, this bracket cleverly combines the design of the platform beam, platform frame and inclined frame, and through the firm fixation of fasteners such as bolts and nuts, it ensures the stability of its structure and its ability to withstand large loads, thereby ensuring safety and stability during the construction process. Its assembled design allows the various components to be connected easily and quickly through fasteners such as bolts and nuts, greatly improving construction efficiency. In addition, the components of the bracket adopt an adaptive design, which can be flexibly combined and adjusted according to the specific construction environment and the installation requirements of the steel box girder. The stability of the bracket is further enhanced by the design of the support frame and the stabilizing frame. At the same time, the lowest end riser is installed on the concrete base, further consolidating the stability of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a front view of the overall structure of the utility model;

[0020] Figure 3 This is a side view of the overall structure of the utility model;

[0021] Figure 4 This is a diagram showing the support frame, support columns and support beams of the present invention;

[0022] Figure 5 This is a schematic diagram of the support frame, support columns and support beams of the utility model.

[0023] In the figure: 1. Support frame; 11. Vertical bracket; 12. Diagonal bracket; 13. Mounting block; 14. Mounting base; 2. Support column; 21. Concrete base; 22. Connecting flange; 23. Riser; 3. Support beam; 31. Support frame; 32. Stabilizing frame; 33. Fixing hole; 34. Connecting block; 4. Platform beam; 5. Platform frame; 6. Diagonal frame. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 - Figure 5 As shown, a prefabricated bracket for installing a steel box girder mainly includes a platform beam 4, a platform frame 5, and an inclined frame 6. The platform frame 5 is mounted on the upper end of the platform beam 4, and the two are supported and fixed by the inclined frame 6. This design makes the platform beam 4 more stable and can withstand greater loads.

[0026] In order to facilitate construction workers to walk on the support, we installed a special passage on the platform beam 4. At the same time, considering the stability of the support, we set support frames 31 at the lower part of both ends of the platform beam 4; the supporting beam 3 includes a support frame 31 and a stabilizing frame 32. The end face of the support frame 31 is provided with fixing holes 33, through which we can connect the stabilizing frame 32 to the support frame 31. The lower end of the stabilizing frame 32 is connected to a plurality of risers 23, which are stacked and fixed by connecting flanges 22 and bolts. In order to increase stability, the lowest riser 23 is installed on the concrete base 21.

[0027] The support frame 31 is connected to mounting bases 14 at both ends via connecting blocks 34. Vertical brackets 11 are mounted at the lower ends of mounting bases 14. The support frame 1 comprises vertical brackets 11 and diagonal brackets 12, with diagonal brackets 12 flanking the vertical brackets 11. These brackets, along with mounting blocks 13, form a stable support system, allowing the frame to be securely fixed to the ground.

[0028] During assembly, bolts and nuts were used as the primary connection method. These fastened the platform beam 4 to its corresponding walkway, the platform frame 5 and diagonal frame 6 to the platform beam 4, and the platform beam 4 to the support frame 31. This simple and secure connection method met the requirements of various complex construction environments.

[0029] The cross-section of a single support frame 31 is H-shaped, which not only increases its load-bearing capacity but also enhances the aesthetics of the stand. The fixing holes 33 on the stabilizing frame 32 and the support frame 31 are aligned, ensuring a precise connection. Bolts, nuts, and washers are used to secure the connection, ensuring a tight and stable fit.

[0030] The connecting block 34 and the support frame 31 are integrally designed, which not only improves the integrity of the bracket but also makes the connection more secure and reliable. The connecting block 34 is compatible with the mounting base 14, and the mounting base 14 is also compatible with the vertical bracket 11. This adaptive design allows the various components of the bracket to fit together perfectly, forming a complete support system.

[0031] The vertical bracket 11, mounting block 13 and diagonal bracket 12 are integrally designed, which simplifies the bracket structure and improves its overall stability. The bottom surface of the mounting block 13 is bonded with a rubber sheet, which increases the friction between the bracket and the ground, further improving the stability of the bracket.

[0032] Support column 2 consists of a vertical tube 23 and a concrete base 21. The sidewalls of vertical tube 23 are annularly arranged with side strips, which not only increase the strength of vertical tube 23 but also strengthen the connection between vertical tube 23 and connecting flange 22. Vertical tube 23 and connecting flange 22 are integrally designed, simplifying the bracket assembly process. Concrete base 21 is embedded in a hole in the ground and secured to connecting flange 22 with bolts, ensuring that the bracket will not shake or tilt when subjected to external forces.

[0033] This prefabricated bracket for steel box girder installation has the advantages of stable structure, simple assembly and strong adaptability. Its design fully considers the actual needs and safety requirements of construction, providing strong support and guarantee for the installation of steel box girder.

[0034] Working process: Check whether all bracket components are intact and confirm that bolts, nuts and other fasteners are complete; mark the installation position of the bracket on the ground to ensure that the bracket layout meets the design requirements; prepare the required installation tools, such as wrenches, screwdrivers, spirit levels, etc.; place the platform beam 4 in the predetermined position and use a spirit level to ensure it is level; install the platform frame 5 on the upper end of the platform beam 4, and support and fix it with the diagonal frame 6 to ensure stability; install the support frame 31 at the lower part of both ends of the platform beam 4 to ensure that the support frame 31 is perpendicular to the platform beam 4; align the stabilizing frame 32 with the support frame 31 through the fixing holes 33, and fix them with bolts, nuts and gaskets; stack the risers 23 to ensure that the side bars of each riser 23 fit tightly with the connecting flange 22, and then fix them with bolts; install the bottom riser 23 on the concrete base 21 to ensure that the bracket is stable; use the connecting block 34 to connect the support frame 31 to the mounting base 14, and then install the vertical bracket 11 and the diagonal bracket 12 to form a complete support system.

[0035] The bracket of the utility model cleverly combines the design of the platform beam, platform frame and inclined frame, and through the firm fixation of fasteners such as bolts and nuts, it ensures the stability of its structure and its ability to withstand large loads, thereby ensuring safety and stability during the construction process. Its assembled design allows the various components to be connected easily and quickly through fasteners such as bolts and nuts, greatly improving construction efficiency. In addition, the components of the bracket adopt an adaptive design, which can be flexibly combined and adjusted according to the specific construction environment and the installation requirements of the steel box girder. The stability of the bracket is further enhanced by the design of the support frame and the stabilizing frame. At the same time, the lowest end riser is installed on the concrete base, which further consolidates the stability of the bracket;

[0036] The above are preferred embodiments of the present invention and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformations, simple replacements, etc. based on the technical solution of the present invention shall fall within the scope of protection of the present invention.

Claims

1. An assembled bracket for installing a steel box beam, comprising a platform beam (4), a platform frame (5) and an inclined frame (6), wherein the platform frame (5) is installed on the upper end of the platform beam (4), and an inclined frame (6) is provided between the platform beam (4) and the platform frame (5), and a passage for people to walk on is installed on the platform beam (4), characterized in that: Support frames (31) are provided at the lower parts of both ends of the platform beam (4), and fixing holes (33) are provided on the end surfaces of the two support frames (31). Stabilizing frames (32) are installed at the fixing holes (33) of the support frames (31), and connecting blocks (34) are connected to both ends of the support frames (31); The lower end of the stabilizing frame (32) is provided with a plurality of risers (23), and the plurality of risers (23) are stacked and fixed by connecting flanges (22) and bolts, and the bottommost riser (23) is installed on a concrete base (21); Both ends of the support frame (31) are connected to mounting seats (14) via connecting blocks (34), and a vertical bracket (11) is installed at the lower end of the mounting seat (14). An oblique bracket (12) is provided on the side of the vertical bracket (11), and mounting blocks (13) are provided at the lower ends of the vertical bracket (11) and the oblique bracket (12). The vertical bracket (11), the oblique bracket (12) and the vertical pipe (23) are fixed to the ground via the mounting blocks (13). The vertical bracket (11), the oblique bracket (12) and the vertical pipe (23) support the platform beam (4).

2. The assembled bracket for installing a steel box girder according to claim 1, characterized in that: The platform beam (4) and the adapted pedestrian passage are fixed via bolts and nuts, and the platform frame (5) and the inclined frame (6) are fixed to the platform beam (4) via bolts and nuts, and the platform beam (4) and the supporting frame (31) are fixed via bolts and nuts.

3. The assembled bracket for installing a steel box girder according to claim 2, characterized in that: The cross section of a single support frame (31) is designed to be "H"-shaped, and the fixing holes (33) on the stabilizing frame (32) and the support frame (31) are aligned and fixed by bolts, nuts and washers.

4. The assembled bracket for installing a steel box girder according to claim 3, characterized in that: The connecting block (34) and the supporting frame (31) are designed as one piece, and the connecting block (34) is adapted to the mounting seat (14), and the mounting seat (14) is adapted to the vertical bracket (11).

5. The assembled bracket for installing a steel box girder according to claim 4, characterized in that: The vertical bracket (11), the mounting block (13) and the oblique bracket (12) are designed as an integral whole, and a rubber sheet is bonded to the bottom surface of the mounting block (13).

6. The assembled bracket for installing a steel box girder according to claim 5, characterized in that: The side wall of the vertical pipe (23) is annularly provided with side strips. The vertical pipe (23) and the connecting flange (22) are designed as an integral whole. The concrete base (21) is embedded in a hole in the ground. The concrete base (21) is fixed to the connecting flange (22) by bolts.

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