Reinforcing structure of light steel keel partition wall fireproof door

Abstract

A light steel keel partition wall fireproof door reinforcing structure comprises a square steel frame located in a door opening and a fireproof door frame fixed to the square steel frame, the square steel frame comprises a cross beam and stand columns on the two sides of the cross beam, a space defined by the fireproof door frame and the square steel frame is filled with concrete, and angle steel reinforcing pieces are welded to the square steel frame. And the angle steel reinforcer extends into the concrete to reinforce the bond stress of the door frame to the concrete. The angle steel reinforcers penetrate into grouting concrete of the fireproof door frame to form strong bond stress, shearing force and pulling force caused by opening and closing of a traditional fireproof door are effectively achieved, steel components and the grouting concrete work in a coordinated mode, the overall stress performance is improved, durability is improved, and the installation and reinforcement problems of the light steel keel partition wall fireproof door or a heavy door are solved.

Description

Technical Field

[0001] This application relates to the field of building construction, specifically to a reinforcement structure for fireproof doors in light steel keel partition walls. Background Technology

[0002] Currently, due to the need for prefabricated buildings, the use of light steel keel partition walls to replace masonry walls is gradually increasing. Light steel keel partition walls have advantages such as a high degree of prefabrication, less on-site wet work, and high work efficiency. However, they also have problems such as difficulty in installing equipment on the wall and installing and reinforcing doors and windows. Utility Model Content

[0003] The purpose of this utility model is to provide a reinforcement structure for fire doors in light steel keel partition walls, in order to solve the problem of difficulty in installing and reinforcing fire doors inside light steel keel partition walls.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A fire door reinforcement structure for a light steel keel partition wall includes a square steel frame located inside the doorway and a fire door frame fixed on the square steel frame. The square steel frame includes a crossbeam and columns on both sides of the crossbeam. The structure is characterized in that the space enclosed by the fire door frame and the square steel frame is filled with concrete, and angle steel reinforcing members are welded to the square steel frame. The angle steel reinforcing members extend into the concrete to enhance the bonding force of the door frame with the concrete.

[0006] Furthermore, the light steel keel partition wall includes a square steel keel frame, fiber cement pressure plates on both sides of the wall, and thermal insulation rock wool filled in the frame.

[0007] Furthermore, a reinforcing support is provided between the crossbeam and the vertical keel of the square steel keel frame, the reinforcing support including a vertical plate and a rib plate provided on the back of the vertical plate.

[0008] Furthermore, the rib plate is flush with the bottom surface of the reinforcing support and is welded and fixed to the crossbeam. The upright plate is provided with through holes and is fixed to the vertical keel by self-tapping screws.

[0009] Furthermore, the angle steel reinforcement is 100~120mm long and has a model number of 30*30*3mm.

[0010] In addition, two angle steel reinforcements are welded and fixed on one side of the column. The lower angle steel reinforcement is 400-500mm from the ground, and the upper angle steel reinforcement is 400-500mm from the crossbeam.

[0011] More preferably, an angle steel reinforcement is welded to the bottom surface of the crossbeam and is centrally located.

[0012] Compared with the prior art, this utility model has the following features and beneficial effects:

[0013] The angle steel reinforcement in this application is deeply embedded in the grouting concrete of the fire door frame, forming a strong gripping force. This effectively reduces the shear and tensile forces caused by the opening and closing of traditional fire doors, allowing the steel components and grouting concrete to work in coordination, improving the overall load-bearing performance, increasing durability, and solving the problem of installation and reinforcement of fire doors or heavy doors in light steel keel partition walls. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of the square steel frame involved in this application;

[0015] Figure 2 This is a diagram illustrating the connection between the square steel frame and the angle steel reinforcement involved in this application.

[0016] Figure 3 This is a schematic diagram of the reinforced support structure involved in this application.

[0017] Attached reference numerals: 1-Square steel keel frame; 2-Fiber cement pressure board; 3-Insulating rock wool; 4-Square steel frame; 41-Beam; 42-Column; 5-Fireproof door frame; 6-Concrete; 7-Angle steel reinforcement; 8-Reinforced support; 81-Upright plate; 82-Rib plate. Detailed Implementation

[0018] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0019] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0020] Example 1

[0021] A light steel keel partition wall fire door reinforcement structure, such as Figures 1-3 As shown, it includes a square steel frame 4 located inside the doorway and a fireproof door frame 5 fixed on the square steel frame 4. The square steel frame 4 includes a crossbeam 41 and columns 42 on both sides of the crossbeam 41. The space enclosed by the fireproof door frame 5 and the square steel frame 4 is filled with concrete 6. Angle steel reinforcements 7 are welded onto the square steel frame 4. The angle steel reinforcements 7 extend into the concrete 6 to strengthen the door frame's grip on the concrete. The angle steel reinforcements are vertically arranged, and one side of the plate is attached to the crossbeam 41 or column 42 and then welded and fixed.

[0022] The door and window openings are reinforced by adding a 50*100*3 square steel frame 4 around them. The doors and windows are directly fixed to the square steel frame 4 during installation. The light steel keel partition wall includes a square steel keel frame 1, fiber cement pressure plates 2 on both sides of the wall, and thermal insulation rock wool 3 filled in the frame.

[0023] Example 2

[0024] Based on Embodiment 1, a reinforcing support 8 is also provided between the crossbeam 41 and the vertical keel of the square steel keel frame 1. The reinforcing support 8 includes a vertical plate 81 and a rib plate 82 located on the back of the vertical plate 81. The rib plate 82 is flush with the bottom surface of the reinforcing support 8 and is welded and fixed to the crossbeam 4. The vertical plate 81 has through holes and is fixed to the vertical keel by self-tapping screws. The angle steel reinforcing member 7 is 100~120mm long and has a model of 30*30*3mm. Two angle steel reinforcing members 7 are welded and fixed on one side of the column 42. The lower angle steel reinforcing member 7 is 400~500mm from the ground, and the upper angle steel reinforcing member 7 is 400~500mm from the crossbeam 41. An angle steel reinforcing member 7 is welded to the bottom surface of the crossbeam 41 and is centrally located.

[0025] This application addresses the technical problem that the bonding ability between square steel pipes and the grouting concrete of fire door frames is not strong, and that the square steel is prone to detaching from the concrete during the use of fire doors, thus affecting the integrity of the fire door frame. This application welds 100mm long angle steel of model L30*30*3mm onto the steel column (steel beam), so that the angle steel penetrates into the grouting concrete of the fire door frame, forming a strong bond force, effectively reducing the shear and tensile forces brought about by the opening and closing of traditional fire doors, enabling the steel components and grouting concrete to work in coordination, improving the overall stress performance and increasing durability.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fire door reinforcement structure for a light steel keel partition wall, comprising a square steel frame (4) located within a doorway and a fire door frame (5) fixed to the square steel frame (4), wherein the square steel frame (4) includes a crossbeam (41) and columns (42) on both sides of the crossbeam (41), characterized in that: The space enclosed by the fireproof door frame (5) and the square steel frame (4) is filled with concrete (6). Angle steel reinforcement (7) is welded on the square steel frame (4). The angle steel reinforcement (7) extends into the concrete (6) to strengthen the door frame's grip on the concrete.

2. The light steel keel partition wall fire door reinforcement structure as described in claim 1, characterized in that: The light steel keel partition wall includes a square steel keel frame (1), fiber cement pressure plates (2) on both sides of the wall, and thermal insulation rock wool (3) filled in the frame.

3. The fire door reinforcement structure for a light steel keel partition wall as described in claim 2, characterized in that: A reinforcing support (8) is provided between the crossbeam (41) and the vertical keel of the square steel keel frame (1). The reinforcing support (8) includes a vertical plate (81) and a rib plate (82) provided on the back of the vertical plate (81).

4. The light steel keel partition wall fire door reinforcement structure as described in claim 3, characterized in that: The rib (82) is flush with the bottom surface of the reinforcing support (8) and is welded and fixed to the crossbeam (4). The upright plate (81) is provided with through holes and is fixed to the vertical keel by self-tapping screws.

5. The fire door reinforcement structure for a light steel keel partition wall as described in claim 3, characterized in that: The angle steel reinforcement (7) is 100~120mm long and has a model number of 30*30*3mm.

6. The fire door reinforcement structure for a light steel keel partition wall as described in claim 3, characterized in that: Two angle steel reinforcements (7) are welded and fixed on a single-sided column (42). The lower angle steel reinforcement (7) is 400~500mm from the ground, and the upper angle steel reinforcement (7) is 400~500mm from the crossbeam (41).

7. A light steel keel partition wall fire door reinforcement structure as described in any one of claims 1 to 6, characterized in that: An angle steel reinforcement (7) is welded to the bottom surface of the crossbeam (41) and is arranged in the center.

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