Steel box girder structure

Abstract

The utility model relates to the technical field of building steel structures, and provides a steel box girder structure which comprises a pier, a plurality of steel box girder bodies are fixedly connected to the top end of the pier, a plurality of sets of supporting linings are fixedly arranged in the steel box girder bodies, and a top plate is fixedly arranged at the top ends of the steel box girder bodies. According to the utility model, a plurality of positioning guide points are provided during installation, so that a positioning function can be realized during installation, combination and fixation are facilitated, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building steel structures, in particular to a steel box girder structure. Background Technique

[0002] The steel box girder is a commonly used structural form in bridge engineering, usually made of steel, with a hollow interior and flanges on both upper sides, similar to a box.

[0003] The design of the steel box girder structure provides important technical support for modern bridge construction with its excellent strength, outstanding stability and construction convenience. However, despite these remarkable advantages, the overall structural size of the steel box girder is huge, and multiple precise positioning and complex combined fixing operations are required during the installation process. These factors increase the construction difficulty and, correspondingly, reduce the construction efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art that the overall structural size of the steel box girder is huge, multiple precise positioning and complex combined fixing operations are required during the installation process, these factors increase the construction difficulty and, correspondingly, reduce the construction efficiency.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: a steel box girder structure, including bridge piers, a plurality of steel box girder bodies are fixedly connected to the tops of the bridge piers, multiple groups of support linings are fixedly arranged inside the steel box girder bodies, a top plate is fixedly arranged at the top of the steel box girder bodies, the steel box girder body includes a bridge support frame, a plurality of installation grooves are opened inside the bottom end of the bridge support frame, side grooves are opened at the side edges of the bottom end of the bridge support frame, the support lining includes a plurality of obliquely arranged support rods, a bottom mounting plate is fixedly connected between the lower ends of adjacent support rods, a top mounting plate is fixedly connected to the top of adjacent bottom mounting plates, the top mounting plate supports the bottom end of the top plate, a side plate is fixedly connected to the lower end of the side support rod, and the side plates on both sides of multiple groups of support linings are clamped and fixedly connected inside the side grooves on both sides of the bottom end of the steel box girder body, and multiple bottom mounting plates at the lower ends of multiple groups of support linings are respectively clamped and fixed inside the multiple installation grooves at the bottom end of the steel box girder body. Through the cooperation of the bridge support frame, side grooves, bottom mounting plates and side plates, a positioning function can be achieved during installation, which is convenient for combined fixing and improves the installation efficiency.

[0006] As a preferred implementation manner, it further includes positioning plates, the positioning plates are fixedly connected between each group of adjacent side plates and each group of adjacent bottom mounting plates, positioning columns are fixedly connected to the corresponding positions of the multiple positioning plates inside the installation grooves and side grooves, and the positioning plates are slidably connected with the positioning columns. Through the cooperation of the positioning plates and the side plates, a guiding function for the installation of the support lining is achieved, and the connection efficiency is improved.

[0007] As a preferred embodiment, side plates are fixedly connected to both sides of the upper end of the bridge support frame. A plurality of connecting grooves are evenly formed at the ends of the side plates, and both ends of the top plate are clamped and fixed inside the connecting grooves. Through the cooperation of the connecting grooves and the side of the top plate, it is convenient to fixedly install the top plate.

[0008] As a preferred embodiment, a ladder is fixedly installed on the side end of the bridge pier, and a support platform is fixedly connected to the upper end of the ladder, which is convenient for maintenance personnel to rest.

[0009] As a preferred embodiment, a connecting ladder is fixedly installed at the upper end of the bridge pier where it is located on the upper end of the support platform. The connecting ladder and the ladder are staggered in position. An articulated plate is hingedly arranged at the corresponding position of the connecting ladder at the lower end of the steel box girder body. Through the articulated plate, construction personnel can enter the inside of the steel box girder body for observation and maintenance. The staggered distribution of the connecting ladder and the ladder can prevent falling when climbing mistakes occur, improving the climbing safety.

[0010] As a preferred embodiment, guardrails are fixedly connected to the sides of the support platform to prevent maintenance personnel from accidentally falling.

[0011] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0012] 1. In the present utility model, components such as positioning columns, positioning plates, bottom mounting plates, connecting grooves, and side grooves are provided. There are multiple positioning and guiding points during installation, which can play a positioning function during installation, facilitate combined fixation, and improve the installation efficiency.

[0013] 2. In the present utility model, components such as ladders, connecting ladders, articulated plates, and support platforms are provided. Through the connecting ladder and the articulated plate, maintenance can be carried out inside the steel box girder. The guardrails on the support plate and the staggered ladders and connecting ladders can play a safety protection function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of a steel box girder structure provided by the present utility model;

[0015] Figure 2 It is a partial structural schematic diagram of a steel box girder structure provided by the present utility model;

[0016] Figure 3 It is a partial structural schematic diagram of a steel box girder structure provided by the present utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the steel box girder body of a steel box girder structure provided by the present utility model;

[0018] Figure 5Schematic diagram of a support lining structure for a steel box girder structure provided by the present utility model.

[0019] Legend:

[0020] 1. Pier; 2. Ladder; 3. Support platform; 4. Guardrail; 5. Steel box girder body; 501. Bridge support frame; 502. Installation groove; 503. Positioning column; 504. Side plate; 505. Connection groove; 506. Side groove; 6. Top plate; 7. Support lining; 701. Support rod; 702. Bottom mounting plate; 703. Positioning plate; 704. Top mounting plate; 705. Side plate; 8. Hinge plate; 9. Connection ladder. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a steel box girder structure, including a pier (1), a plurality of steel box girder bodies (5) are fixedly connected to the top end of the pier (1), a plurality of groups of support linings (7) are fixedly arranged inside each of the steel box girder bodies (5), a top plate (6) is fixedly arranged at the top end of the steel box girder body (5), the steel box girder body (5) includes a bridge support frame (501), a plurality of installation grooves (502) are opened inside the bottom end of the bridge support frame (501), a side groove (506) is opened at the side of the bottom end of the bridge support frame (501), the support lining (7) includes a plurality of inclined support rods (701), a bottom mounting plate (702) is fixedly connected between the lower ends of adjacent support rods (701), a top mounting plate (704) is fixedly connected to the top end of adjacent bottom mounting plates (702), the top mounting plate (704) supports the bottom end of the top plate (6), a side plate (705) is fixedly connected to the lower end of the side support rod (701), the side plates (705) on both sides of a plurality of groups of support linings (7) are clamped and fixedly connected inside the side grooves (506) on both sides of the bottom end of the steel box girder body (5), a plurality of bottom mounting plates (702) at the lower ends of a plurality of groups of support linings (7) are respectively clamped and fixed inside the plurality of installation grooves (502) at the bottom end of the steel box girder body (5). Through the cooperation of the bridge support frame (501), the side groove (506), the bottom mounting plate (702) and the side plate (705), a positioning function can be achieved during installation, which is convenient for combined fixation and improves the installation efficiency.

[0023] Such as Figures 1-5As shown, it further includes a positioning plate (703). The positioning plate (703) is fixedly connected between each group of adjacent side plates (705) and each group of adjacent bottom mounting plates (702). Positioning columns (503) are fixedly connected inside the mounting groove (502) and the side groove (506) corresponding to the plurality of positioning plates (703). The positioning plate (703) is slidably connected to the positioning column (503). Through the cooperation of the positioning plate (703) and the side plate (705), it functions to guide the installation of the support lining (7), improving the connection efficiency.

[0024] As Figures 1-5 shown, both sides of the upper end of the bridge support frame (501) are fixedly connected with side plates (504). A plurality of connecting grooves (505) are evenly formed at the ends of the side plates (504). Both ends of the top plate (6) are clamped and fixed inside the connecting grooves (505). Through the cooperation of the connecting grooves (505) and the side of the top plate (6), it is convenient to fixedly install the top plate (6).

[0025] As Figures 1-5 shown, a ladder (2) is fixedly installed on the side end of the pier (1). The upper end of the ladder (2) is fixedly connected with a support platform (3), which is convenient for maintenance personnel to rest.

[0026] As Figures 1-5 shown, a connecting ladder (9) is fixedly installed at the upper end of the pier (1) where it is located on the support platform (3). The connecting ladder (9) is staggered with the ladder (2) in position. An articulated plate (8) is hingedly arranged at the lower end of the steel box girder body (5) corresponding to the connecting ladder (9). Through the articulated plate (8), construction personnel can enter the inside of the steel box girder body (5) for observation and maintenance. The staggered distribution of the connecting ladder (9) and the ladder (2) can prevent falling when climbing mistakes occur, improving the climbing safety.

[0027] As Figures 1-5 shown, guardrails (4) are fixedly connected to both sides of the support platform (3) to prevent maintenance personnel from accidentally falling.

[0028] Working principle: During installation and connection, the support lining (7) is hoisted up. Preliminary positioning is carried out through the cooperation between the installation groove (502) and the side groove (506) and the side plate (705) and the support rod (701). Then, the holes on the positioning plate (703) are aligned with the positioning column (503), and precise positioning is carried out through the guidance of the positioning column (503) on the positioning plate (703). By lowering the support lining (7), the bottom mounting plate (702) and the side plate (705) inside are clamped at the installation groove (502) and the side groove (506) inside the steel box girder body (5). Then, through fixing methods such as bolt welding, the installation of the support lining (7) can be completed. When hoisting the top plate (6), the two sides of the top plate (6) are hoisted and positioned at the connection groove (505) position, and then installed through connection methods such as bolts, so that the top mounting plate (704) supports the top plate (6), and the installation of the top plate (6) is completed, that is, the assembly and installation of the steel box girder body (5) are completed. There are multiple positioning and guiding points during installation, which can play a positioning function during installation, facilitate combined fixing, and improve the installation efficiency.

[0029] The above are only the preferred embodiments of the present invention, and are not limitations on the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A steel box girder structure, comprising a bridge pier (1), characterized in that, At the top end of the pier (1), a plurality of steel box girders (5) are fixedly connected. Inside each of the steel box girders (5), multiple groups of support linings (7) are fixedly arranged. At the top end of the steel box girder (5), a top plate (6) is fixedly arranged. The steel box girder (5) includes a bridge support frame (501). Inside the bottom end of the bridge support frame (501), a plurality of installation grooves (502) are formed. At the side edge of the bottom end of the bridge support frame (501), a side groove (506) is formed. The support lining (7) includes a plurality of inclined support rods (701). Between the lower ends of adjacent support rods (701), a bottom mounting plate (702) is fixedly connected. At the top end of adjacent bottom mounting plates (702), a top mounting plate (704) is fixedly connected. The top mounting plate (704) supports the bottom end of the top plate (6). At the lower end of the side support rod (701), a side plate (705) is fixedly connected. The side plates (705) on both sides of multiple groups of support linings (7) are clamped and fixedly connected inside the side grooves (506) on both sides of the bottom end of the steel box girder (5). The multiple bottom mounting plates (702) at the lower ends of multiple groups of support linings (7) are respectively clamped and fixed inside the multiple installation grooves (502) at the bottom end of the steel box girder (5).

2. The steel box girder structure according to claim 1, characterized in that: It further includes a positioning plate (703). The positioning plate (703) is fixedly connected between each group of adjacent side plates (705) and each group of adjacent bottom mounting plates (702). Inside the installation groove (502) and the side groove (506), positioning columns (503) are fixedly connected corresponding to the multiple positioning plates (703). The positioning plate (703) is slidably connected with the positioning column (503).

3. A steel box girder structure according to claim 1, characterized in that: On both sides of the upper end of the bridge support frame (501), side plates (504) are fixedly connected. At the end of the side plate (504), a plurality of connection grooves (505) are evenly formed. Both ends of the top plate (6) are clamped and fixed inside the connection grooves (505).

4. A steel box girder structure according to claim 1, characterized in that: On the side end of the pier (1), a ladder (2) is fixedly installed. At the upper end of the ladder (2), a support platform (3) is fixedly connected.

5. A steel box girder structure according to claim 4, characterized in that: At the upper end of the pier (1) where the support platform (3) is located, a connecting ladder (9) is fixedly installed. The connecting ladder (9) is staggered with the ladder (2) in position. At the position corresponding to the connecting ladder (9) at the lower end of the steel box girder (5), a hinge plate (8) is hingedly arranged.

6. A steel box girder structure according to claim 4, characterized in that: On the side of the support platform (3), guardrails (4) are fixedly connected.

Images