Fireproof steel structure for building

Abstract

The utility model relates to steel structure technical field, specifically disclose building fireproof steel structure, including installation bottom plate, the upper surface fixed mounting of installation bottom plate has the support beam, the outside of support beam is equipped with two fireproof plate, the outside of support beam is equipped with two support cross beams, the outer surface of support beam is coated with fire -retardant coating, the inside of support beam is opened water storage cavity, the outer surface fixed connection of support beam has two support seat, two the bottom surface fixed connection of support cross beam all has screw thread support clamping block, the outer surface of two screw thread support clamping block respectively with two support seat inner wall contact, the upper surface of installation bottom plate is set up with a plurality of mounting hole. Through the double thermal -insulation of fire -retardant coating and fireproof plate, can make the heating rate of support beam lower than single heat -resistant layer, in addition, the water in water storage cavity can reduce support beam temperature through the heat absorption of vaporization, in turn can make steel structure carry out efficient heat -resistant fire -proofing.

Description

Technical Field

[0001] This utility model relates to the field of steel structures, and in particular to fireproof steel structures for buildings. Background Technology

[0002] Steel structures are widely used in high-rise buildings, large-span stadiums, industrial plants and other fields due to their advantages such as high strength, light weight, short construction period and good seismic performance. However, steel structures have poor fire resistance and the mechanical properties of steel will decrease significantly as the temperature rises.

[0003] Chinese patent CN218264294U discloses a fireproof steel structure for buildings, including a connecting plate 1; a connecting plate 2 is provided on the right side of the connecting plate 1, and an installation mechanism is provided between the connecting plate 2 and the connecting plate 1. Both the connecting plate 1 and the connecting plate 2 include a heat-resistant layer. A reinforcing layer is fixedly connected to the lower side of the heat-resistant layer. A hollow layer is fixedly connected to the lower side of the reinforcing layer. A stabilizing layer is fixedly connected to the lower side of the hollow layer. The heat-resistant layer is made of fireproof steel structure paint, the reinforcing layer is made of carbon fiber material, and the stabilizing layer is made of steel material. By incorporating a heat-resistant layer, a reinforcing layer, a hollow layer, and a stabilizing layer, the fire resistance and high-temperature resistance of the steel structure can be increased, thus avoiding affecting the stability of the steel structure building connections and increasing the safety of the steel structure building. However, the aforementioned patent only uses a heat-resistant layer to provide poor fire protection for the steel structure surface, making it difficult to achieve efficient heat resistance and fire protection for the steel structure. Furthermore, the connection and installation of connecting plate one and connecting plate two are cumbersome, reducing the speed of connecting and installing steel structure components. Therefore, we propose a fire-resistant steel structure for buildings to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a fireproof steel structure for buildings, which solves the problems of poor fireproofing effect of heat-resistant layer on steel structure surface, difficulty in achieving efficient heat resistance and fireproofing of steel structure, and troublesome operation when connecting and installing connecting plate one and connecting plate two, which reduces the speed of connecting and installing steel structure components.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Fire-resistant steel structure for building includes a mounting base plate. A support beam is fixedly mounted on the upper surface of the mounting base plate. Two fireproof plates are provided on the outside of the support beam. Two support crossbeams are provided on the outside of the support beam. The outer surface of the support beam is coated with a fireproof coating. A water storage cavity is opened inside the support beam. Two support seats are fixedly connected to the outer surface of the support beam. Threaded support blocks are fixedly connected to the bottom surface of each of the two support crossbeams. The outer surfaces of the two threaded support blocks are in contact with the inner walls of the two support seats. Multiple mounting holes are opened on the upper surface of the mounting base plate.

[0007] As a preferred embodiment of the fireproof steel structure for building of this utility model, the inner bottom walls of both support seats are provided with threaded holes, and the inner walls of both threaded holes are threaded with locking screws, and the outer surface of the locking screws is threadedly connected to the inner wall of the threaded support block.

[0008] As a preferred embodiment of the fireproof steel structure for building of this utility model, the upper surfaces of the two supporting beams are fixedly connected with fixing plates, and the interior of the two fixing plates is provided with fixing screws.

[0009] As a preferred embodiment of the fireproof steel structure for buildings according to this utility model, the outer surface of the supporting beam is provided with a water injection hole, and the inner wall of the water injection hole is threaded with a sealing plug.

[0010] As a preferred embodiment of the fireproof steel structure for building of this utility model, rectangular holes are provided on the opposite sides of the two fireproof boards, two rectangular threaded seats are fixedly connected to the outer surface of the support beam, and a threaded locking button is provided on one side of one of the fireproof boards.

[0011] As a preferred embodiment of the fireproof steel structure for building of this utility model, the outer surface of the support beam is provided with a threaded opening, and the outer surfaces of the two fixing screws are respectively adapted to the inner wall threads of the two threaded openings.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The fire-resistant steel structure of this building uses a double insulation method of fire-resistant coating and fireproof board, which reduces the heating rate of the supporting beams compared to a single heat-resistant layer. In addition, the water in the water storage cavity absorbs heat through vaporization, which can reduce the temperature of the supporting beams and delay the time for the supporting beams to reach the critical instability temperature. This enables the steel structure to achieve efficient heat resistance and fire protection. Through the insertion of threaded support blocks and support seats, as well as the threaded locking design, the supporting beams and supporting crossbeams can be quickly installed and fixed, improving installation efficiency. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0015] Figure 1 This is a three-dimensional structural diagram of the fireproof steel structure for buildings according to this utility model, viewed from the front.

[0016] Figure 2 This is a frontal sectional view of the fireproof steel structure for buildings according to this utility model.

[0017] Figure 3This is a side sectional view of the fireproof steel structure for building according to this utility model;

[0018] Figure 4 This utility model relates to a fireproof steel structure for buildings. Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Mounting base plate; 2. Support beam; 3. Fireproof board; 4. Support beam; 5. Support seat; 6. Water storage cavity; 7. Water injection hole; 8. Sealing plug; 9. Rectangular hole; 10. Rectangular threaded seat; 11. Threaded locking button; 12. Threaded support block; 13. Locking screw; 14. Threaded hole; 15. Fireproof coating; 16. Fixing plate; 17. Fixing screw; 18. Threaded opening; 19. Mounting hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. Unless otherwise specified, the methods used in the present utility model are conventional methods; unless otherwise specified, the raw materials and apparatus used are conventional commercially available products.

[0021] Please see Figures 1-4 In this utility model, a fireproof steel structure for building includes an installation base plate 1. A support beam 2 is fixedly installed on the upper surface of the installation base plate 1. Two fireproof plates 3 are provided on the outside of the support beam 2. The fireproof plates 3 are made of non-combustible materials such as rock wool and calcium silicate, which directly block the impact of flames and heat radiation, forming a physical fire barrier and reducing the direct effect of external heat on the fireproof coating 15 and the support beam 2. Two support beams 4 are provided on the outside of the support beam 2. The outer surface of the support beam 2 is coated with a fireproof coating 15. A water storage cavity 6 is opened inside the support beam 2. Two support seats 5 are fixedly connected to the outer surface of the support beam 2. Threaded support blocks 12 are fixedly connected to the bottom surface of the two support beams 4. The outer surfaces of the two threaded support blocks 12 are in contact with the inner walls of the two support seats 5 respectively. Multiple installation holes 19 are opened on the upper surface of the installation base plate 1.

[0022] In this embodiment: the threaded support block 12 and the support base 5 cooperate to achieve a lateral connection with the support beam 2, thereby enhancing the overall structural integrity. The support base 5 can provide an installation interface for the support beam 4. The threaded hole 14 and the locking screw 13 cooperate to achieve a tight connection with the threaded support block 12. The fireproof coating 15 is applied to the surface of the support beam 2. When exposed to high temperature, it expands to form a heat insulation layer, further improving the fireproof performance.

[0023] As a technical optimization of this utility model, threaded holes 14 are provided on the inner bottom walls of the two support seats 5, and locking screws 13 are threadedly connected to the inner walls of the two threaded holes 14. The outer surfaces of the locking screws 13 are threadedly connected to the inner walls of the threaded support blocks 12. Fixing plates 16 are fixedly connected to the upper surfaces of the two support beams 4. Fixing screws 17 are provided inside the two fixing plates 16. Threaded openings 18 are provided on the outer surfaces of the support beams 2, and the outer surfaces of the two fixing screws 17 are respectively adapted to the inner threads of the two threaded openings 18.

[0024] In this embodiment: by cooperating with the threaded hole 14 and the threaded support block 12, and using the threaded connection of the locking screw 13, the support beam 4 and the support base 5 can be fixed to prevent displacement. In addition, by connecting the fixing screw 17 to the threaded port 18 on the surface of the support beam 2, the connection strength between the support beam 4 and the support beam 2 is further enhanced, ensuring effective load transfer.

[0025] As a technical optimization of this utility model, the outer surface of the support beam 2 is provided with a water injection hole 7, and the inner wall of the water injection hole 7 is threaded with a sealing plug 8. The two fireproof plates 3 are provided with rectangular holes 9 on their opposite sides. The outer surface of the support beam 2 is fixedly connected with two rectangular threaded seats 10, and a threaded locking button 11 is provided on one side of one fireproof plate 3.

[0026] In this embodiment: water is injected into the water storage cavity 6 through the water injection hole 7, while the sealing plug 8 ensures the sealing of the water storage cavity 6 to prevent water leakage. Through the setting of the rectangular hole 9, the rectangular threaded seat 10 and the threaded locking button 11, the fireproof plate 3 can be fitted into the surface of the rectangular threaded seat 10 through the rectangular hole 9, and can be quickly installed and disassembled through the threaded locking button 11, which is convenient for maintenance and replacement of the fireproof plate 3, while ensuring a tight fit between the fireproof plate 3 and the support beam 2.

[0027] The working principle of this utility model is as follows: First, the supporting beam 4 is inserted into the support base 5 through the threaded support block 12. The contact surface with the supporting beam 2 is coated with a fireproof layer and filled with fireproof sealant. Then, the fixing screw 17 and the locking screw 13 are rotated so that they can be rotated into the inside of the threaded opening 18 and the inside of the threaded support block 12, respectively, thereby completing the installation of the supporting beam 4. Then, two fireproof plates 3 are installed on the outside of the supporting beam 2. The two fireproof plates 3 and the fireproof coating 15 can directly delay the heating of the steel. In addition, in the event of a fire, the water in the water storage cavity 6 can absorb heat and thus cool down the supporting beam 2.

[0028] However, the above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model. For those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

Claims

1. A fire-resistant steel structure for building construction, characterized in that: The system includes a mounting base plate (1), on which a support beam (2) is fixedly mounted. Two fireproof plates (3) are provided on the outside of the support beam (2), and two support crossbeams (4) are provided on the outside of the support beam (2). The outer surface of the support beam (2) is coated with a fireproof coating (15). A water storage cavity (6) is opened inside the support beam (2). Two support seats (5) are fixedly connected to the outer surface of the support beam (2). Threaded support blocks (12) are fixedly connected to the bottom surface of the two support crossbeams (4). The outer surfaces of the two threaded support blocks (12) are in contact with the inner walls of the two support seats (5). Multiple mounting holes (19) are opened on the upper surface of the mounting base plate (1).

2. The fireproof steel structure for buildings according to claim 1, characterized in that: Both of the support bases (5) have threaded holes (14) on their inner bottom walls. The inner walls of both threaded holes (14) are threaded with locking screws (13), and the outer surface of the locking screws (13) is threaded to the inner wall of the threaded support block (12).

3. The fireproof steel structure for buildings according to claim 1, characterized in that: The upper surfaces of the two supporting beams (4) are fixedly connected with fixing plates (16), and the interior of the two fixing plates (16) is provided with fixing screws (17).

4. The fireproof steel structure for buildings according to claim 1, characterized in that: The outer surface of the support beam (2) is provided with a water injection hole (7), and the inner wall of the water injection hole (7) is threaded with a sealing plug (8).

5. The fireproof steel structure for buildings according to claim 1, characterized in that: The two fireproof boards (3) are provided with rectangular holes (9) on their opposite sides. The outer surface of the support beam (2) is fixedly connected with two rectangular threaded seats (10). One side of the fireproof board (3) is provided with a threaded locking button (11).

6. The fireproof steel structure for buildings according to claim 1, characterized in that: The outer surface of the support beam (2) is provided with a threaded opening (18), and the outer surfaces of the two fixing screws (17) are respectively adapted to the inner wall threads of the two threaded openings (18).

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