Fire-resistant steel structure building

Abstract

The utility model discloses a fire-resistant steel structure building which comprises a steel column body, a fire-resistant structure is arranged on the outer wall of the steel column body, the fire-resistant structure comprises an inner-layer fire-resistant plate and an outer-layer fire-resistant plate, and the outer wall of the steel column body is provided with an installation assembly enabling the inner-layer fire-resistant plate to be fixedly installed on the four sides of the steel column body. The outer wall of the steel column main body is provided with an inner-layer fireproof plate, and the outer wall of the inner-layer fireproof plate is provided with a connecting assembly used for installing the inner-layer fireproof plate. According to the fireproof steel structure building, multi-layer protection can be conducted on the steel column body through the fireproof filler, the first fireproof layer, the heat insulation layer and the second fireproof layer, meanwhile, air circulation between the inner-layer fireproof plate and the outer-layer fireproof plate is reduced, flame retardance is further achieved, and the fireproof steel structure building is better in fireproof performance, longer in fireproof time and higher in practicability. Therefore, the steel column has better fire-resistant effect and bearing capacity.

Description

Technical Field

[0001] The utility model relates to the technical field of construction, in particular to a fire-resistant steel structure building. Background Art

[0002] Fire-resistant steel structure buildings refer to buildings built with fire-resistant steel. Fire-resistant steel is generally specified to have a yield strength greater than 2 / 3 of the room temperature yield strength at 600°C within 1 to 3 hours, and has fire-resistant and anti-collapse functions under certain conditions. With the development of science and technology, there are more and more steel structure buildings, and their functions are becoming more and more powerful.

[0003] At present, steel structure buildings generally adopt spray-type steel structure fire protection method to achieve the purpose of fire prevention. This fire protection design method mainly sprays a layer of fireproof material on the surface of the steel structure to protect the steel structure. In addition, the thermal conductivity of steel structure buildings is strong. At the same time, the fire-retardant coating cannot completely prevent fires. It can only prevent combustion within a certain period of time. Fire protection only by fire-retardant coating makes the fire resistance time of steel structure short. When the fire-retardant coating falls off after long-term use, the inner steel structure will be exposed to the outside, causing the steel structure to lose its fire resistance. Utility Model Content

[0004] The purpose of the utility model is to provide a fire-resistant steel structure building to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fire-resistant steel structure building comprises a steel column body, the outer wall of the steel column body is provided with a fire-resistant structure, the fire-resistant structure comprises an inner fire-resistant board and an outer fire-resistant board, the outer wall of the steel column body is provided with an installation component for fixing the inner fire-resistant board on the four sides of the steel column body, and the outer wall of the inner fire-resistant board is provided with a connection component for installing the inner fire-resistant board.

[0007] In a preferred embodiment of the utility model, the inner fireproof board is composed of fireproof filler, a first substrate and a first fireproof layer from the inside to the outside, the fireproof filler is quartz wool, and the first fireproof layer is sprayed on the outer wall of the first substrate.

[0008] In a preferred embodiment of the present invention, the outer fire-resistant board comprises, from the inside to the outside, a heat insulation layer, a second substrate and a second fireproof layer.

[0009] In a preferred embodiment of the present invention, the installation assembly includes a connecting rod, there are multiple groups of inner fire-resistant panels, each group of inner fire-resistant panels has four inner fire-resistant panels, the connecting rod is fixedly installed on the opposite sides of the left and right inner fire-resistant panels, riveting grooves are provided on the inner walls of the front and rear inner fire-resistant panels, and plug rods are fixedly installed on the opposite sides of the front and rear inner fire-resistant panels.

[0010] In a preferred embodiment of the utility model, the connecting assembly includes a base plate, the base plate is fixedly installed on the lower end of the inner fire-resistant plate on the side away from the steel column body, and a first mounting block is fixedly installed on the side of the inner fire-resistant plate away from the steel column body.

[0011] In a preferred embodiment of the present invention, a slide groove is provided on the inner wall of the first mounting block, the slide groove is slidably connected with an I-shaped block, a corner mounting block is fixedly installed on one end of the I-shaped block away from the first mounting block, mounting grooves are provided on the inner walls on both sides of the corner mounting block, and the outer fire-resistant board is installed on both sides of the corner mounting block through the mounting grooves.

[0012] In a preferred embodiment of the present invention, second mounting blocks are fixedly mounted on both sides of the outer wall of the inner fire-resistant board, and second mounting grooves are formed on the inner walls of the second mounting blocks.

[0013] In a preferred embodiment of the utility model, a T-block is slidably installed on the inner wall of the second installation groove, and the side of the T-block away from the second installation block is fixedly connected to the outer fire-resistant board, and a fixing plate is arranged between the outer fire-resistant board and the inner fire-resistant board.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0015] Beneficial effects:

[0016] 1. The utility model is provided with a fire-resistant structure. An inner fire-resistant board and an outer fire-resistant board are provided on the outer wall of the steel column body. The inner wall of the outer fire-resistant board is provided with a heat insulation layer, a second substrate and a second fireproof layer. The heat insulation layer can play a heat insulation effect to a certain extent. The inner wall of the inner fire-resistant board is provided with a fireproof filler, a first substrate and a first fireproof layer. The steel column body can be protected by multiple layers through the fireproof filler, the first fireproof layer, the heat insulation layer and the second fireproof layer, so that the steel column body has better fire resistance, longer fire resistance time and better bearing capacity. At the same time, A fixed plate is arranged between the inner and outer fireproof boards to completely fill the gap between the inner and outer fireproof boards, reduce the air circulation between the inner and outer fireproof boards, and further retardant the flame by reducing the oxygen required for combustion. This kind of fire-resistant steel structure building has better fire resistance and longer fire resistance time, making the steel column more fire-resistant and bearing capacity, and solves the problem that only fire-resistant coating is used for fire protection. After the outer fire-resistant coating falls off, the inner steel structure will be exposed to the outside, causing the steel structure to lose its fire resistance.

[0017] 2. The utility model is provided with a connecting assembly and an installation assembly, so that the inner fire-resistant board is easy to be installed on the outer wall of the steel column, and the outer fire-resistant board is easy to be installed on the outside of the inner fire-resistant board, and the outer fire-resistant board is fixedly installed on the outside of the inner fire-resistant board through the mutual limitation of the bottom plate, the first installation block, the I-shaped block, the corner installation block, the second installation block, the T-shaped block and the fixing plate, so that the utility model is easy to install and transport. At the same time, through the limitation of the corner installation block, the inner and outer fire-resistant boards can be more firmly installed on the outside of the steel column body, not easy to fall off, and have higher use value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a structural diagram of a fire-resistant steel structure building.

[0020] Figure 2 Schematic diagram of the explosion structure of the fire-resistant structure in the fire-resistant steel structure building.

[0021] Figure 3 A schematic diagram of the partial structure of the connection components in a fire-resistant steel structure building.

[0022] Figure 4 This is a schematic diagram of the structure of the inner and outer fire-resistant panels in a fire-resistant steel structure building.

[0023] Figure 5 Schematic diagram of the structure for installing components in a fire-resistant steel structure building.

[0024] Figure 6It is a structural schematic diagram of the fire-resistant structure in the fire-resistant steel structure building.

[0025] Figure 7 This is a schematic diagram of the structure of the fixed plate in the fire-resistant steel structure building.

[0026] Figure 8 This is a schematic diagram of the structure of the outer side of the inner layer of fire-resistant board in a fire-resistant steel structure building.

[0027] Fig. 9 This is a structural diagram of the corner mounting blocks in a fire-resistant steel structure building.

[0028] Fig.10 This is a structural diagram of the bottom of the corner mounting block in a fire-resistant steel structure building.

[0029] In the figure: steel column body 1, inner fire-resistant board 2, outer fire-resistant board 3, fire-proof filler 201, first substrate 202, first fire-proof layer 203, heat insulation layer 301, second substrate 302, second fire-proof layer 303, connecting rod 21, rivet groove 22, plug rod 23, bottom plate 41, first mounting block 42, slide groove 4201, I-shaped block 43, corner mounting block 44, mounting groove 4401, second mounting block 45, second mounting groove 4501, T-block 46, fixing plate 47. DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] Example 1: Figure 1-10 , comprising a steel column body 1, the outer wall of the steel column body 1 is provided with a fire-resistant structure, the fire-resistant structure comprises an inner fire-resistant board 2 and an outer fire-resistant board 3, the outer wall of the steel column body 1 is provided with a mounting assembly for fixing the inner fire-resistant board 2 on four sides of the steel column body 1, and the outer wall of the inner fire-resistant board 2 is provided with a connecting assembly for mounting the inner fire-resistant board 2; the inner fire-resistant board 2 is composed of a fire-proof filler 201, a first substrate 202 and a first fire-proof layer 203 from the inside to the outside, the fire-proof filler 201 is quartz wool, and the first fire-proof layer 203 is sprayed on the outer wall of the first substrate 202; the outer fire-resistant board 3 is composed of a heat insulation layer 301, a second substrate 302 and a second fire-proof layer 303 from the inside to the outside;

[0032] The specific practical scenario of this embodiment is as follows: quartz wool is an artificial fiber material made of silicate, which does not release substances harmful to health and has good heat insulation, sound insulation, fire prevention and other properties. The inner wall of the inner fireproof board 2 is filled with quartz wool, and the first fireproof layer 203 of the outer layer of the first substrate 202 is formed by spraying fireproof coating. Fireproof coating is a special coating used on the surface of combustible substrates to reduce the flammability of the surface of the coated material, block the rapid spread of fire, and improve the fire resistance limit of the coated material; applied to On the first substrate 202, a special coating is applied to improve the fire resistance limit of the component; the fireproof coating adopts the existing technology, and the second fireproof layer 303 on the outer layer of the second substrate 302 is also formed by spraying the fireproof coating, and the heat insulation layer 301 on the inner side of the outer fireproof board 3 is made of glass fiber, and the heat insulation layer 301 has a good heat insulation effect. The fireproof filler 201, the first fireproof layer 203, the heat insulation layer 301 and the second fireproof layer 303 can provide multi-layer protection for the steel column body 1, so that the fire resistance of the steel column body 1 is better;

[0033] Example 2: Figure 1-10 , comprising a steel column body 1, the outer wall of the steel column body 1 is provided with a fire-resistant structure, the fire-resistant structure comprises an inner fire-resistant board 2 and an outer fire-resistant board 3, the outer wall of the steel column body 1 is provided with a mounting assembly that enables the inner fire-resistant board 2 to be fixedly mounted on four sides of the steel column body 1, and the outer wall of the inner fire-resistant board 2 is provided with a connecting assembly for mounting the inner fire-resistant board 2; the mounting assembly comprises a connecting rod 21, the number of the inner fire-resistant boards 2 is multiple, and the number of the inner fire-resistant boards 2 in each group is four, the connecting rod 21 is fixedly mounted on the opposite sides of the left and right inner fire-resistant boards 2, the inner walls of the inner fire-resistant boards 2 on the front and rear sides are provided with rivet grooves 22, and the opposite sides of the inner fire-resistant boards 2 on the front and rear sides are fixedly mounted with plug rods 23;

[0034] The specific practical scenario of this embodiment is as follows: the connecting rod 21 is a connecting piece for riveting the inner refractory panels 2 on the left and right sides and the two inner refractory panels 2 on the front and back sides. The connecting rod 21 rivets the adjacent inner refractory panels 2 through the rivet groove 22, so that the two adjacent inner refractory panels 2 are riveted together. The plug rod 23 is a connecting piece for riveting the two inner refractory panels 2 on the front and back sides and the steel column body 1. The inner walls on the front and back sides of the steel column body 1 are provided with a second rivet groove. The plug rod 23 rivets the steel column body 1 through the second rivet groove, so that the two inner refractory panels 2 on the front and back sides and the steel column body 1 are riveted together. At the same time, the inner sides of the two inner refractory panels 2 are painted with high-temperature refractory paint, so that the two inner refractory panels 2 on the front and back sides can be bonded to the outer wall of the steel column body 1. Through bonding and riveting, the inner refractory panels 2 can be firmly installed on the outside of the steel column body 1.

[0035] Example 3: Figure 1-10, comprising a steel column body 1, the outer wall of the steel column body 1 is provided with a fire-resistant structure, the fire-resistant structure comprises an inner fire-resistant board 2 and an outer fire-resistant board 3, the outer wall of the steel column body 1 is provided with a mounting assembly that enables the inner fire-resistant board 2 to be fixedly mounted on four sides of the steel column body 1, the outer wall of the inner fire-resistant board 2 is provided with a connecting assembly for mounting the inner fire-resistant board 2; the connecting assembly comprises a connecting assembly comprising a bottom plate 41, the bottom plate 41 is fixedly mounted on the lower end of the side of the inner fire-resistant board 2 away from the steel column body 1, the side of the inner fire-resistant board 2 away from the steel column body 1 is fixedly mounted with a first mounting block 42; the inner wall of the first mounting block 42 is provided with a slide groove 4201, the slide groove 4201 An I-shaped block 43 is slidably connected, and a corner mounting block 44 is fixedly installed on one end of the I-shaped block 43 away from the first mounting block 42, and mounting grooves 4401 are provided on the inner walls of both sides of the corner mounting block 44, and the outer fire-resistant board 3 is installed on both sides of the corner mounting block 44 through the mounting grooves 4401; second mounting blocks 45 are fixedly installed on both sides of the outer wall of the inner fire-resistant board 2, and a second mounting groove 4501 is provided on the inner wall of the second mounting block 45; a T-shaped block 46 is slidably installed on the inner wall of the second mounting groove 4501, and the T-shaped block 46 is fixedly connected to the outer fire-resistant board 3 on the side away from the second mounting block 45, and a fixing plate 47 is provided between the outer fire-resistant board 3 and the inner fire-resistant board 2;

[0036] The specific practical scenario of this embodiment is: there is an interference fit between the T-block 46 and the second mounting groove 4501; there are four fixing plates 47, and the four fixing plates 47 can be inserted from the gap between the outer fire-resistant board 3 and the inner fire-resistant board 2. The fixing plates 47 can act as riveted connectors to completely fill the gap between the outer fire-resistant board 3 and the inner fire-resistant board 2, and the lower end of the fixing plate 47 is firmly against the upper end of the bottom plate 41, and the upper end of the fixing plate 47 is flush with the upper ends of the outer fire-resistant board 3 and the inner fire-resistant board 2. The fixing plates 47 have two inner corners. There is a first fitting groove, and a second fitting groove is opened on the inner wall of the fixing plate 47, and the second fitting groove is located outside the first fitting groove. When the fixing plate 47 is nailed between the outer fire-resistant board 3 and the inner fire-resistant board 2, the first mounting block 42 is located on the inner wall of the first fitting groove, and the second mounting block 45 is located on the inner wall of the second fitting groove. The inner wall of the second fitting groove is fitted with the outer wall of the second mounting block 45 with the T-block 46 installed, and the inner wall of the first fitting groove is fitted with the outer wall of the first mounting block 42 with the I-shaped block 43 installed; the lower end of the first mounting block 42 is fixedly connected to the bottom plate 41, and the lower end of the second mounting block 45 is fixedly connected to the bottom plate 41;

[0037] The above structures and principles are all common standard parts or parts known to those skilled in the art, and their structures and principles can be known by those skilled in the art through technical manuals or conventional experimental methods;

[0038] The working principle of the utility model is as follows: the insertion rods 23 on the opposite sides of the front and rear two inner refractory boards 2 are nailed into the front and rear sides of the steel column body 1, and the opposite sides of the front and rear two inner refractory boards 2 are coated with high-temperature refractory glue, and the front and rear two inner refractory boards 2 are adhered to the two sides of the steel column body 1 by the high-temperature refractory glue, and then the connecting rods 21 on both sides of the two inner refractory boards 2 installed with connecting rods 21 are smashed into the rivet grooves 22, so that the two adjacent inner refractory boards 2 can be riveted together, and the two I-shaped blocks 43 on the inner sides of the four corner mounting blocks 44 are slidably installed into the slide grooves 4201 opened inside the first mounting block 42, and then the second fireproof layer 303 is slidably installed in the mounting grooves 4401 on the opposite sides of the two adjacent corner mounting blocks 44, and at this time, the T-block 46 on the inner side of the outer refractory board 3 is just slidably installed into the second mounting groove 4501 opened on the inner wall of the second mounting block 45, and the above operation is repeated to install the outer refractory boards on all four sides of the inner refractory board 2 3, then insert the fixing plate 47 between the inner layer fireproof board 2 and the outer layer fireproof board 3, so that the two first fitting grooves at the corners of the fixing plate 47 are inserted into the outer wall of the first mounting block 42 and the I-shaped block 43, and the second mounting block 45 is inserted into the second fitting groove located outside the first fitting groove, and the four fixing plates 47 are completely nailed between the inner layer fireproof board 2 and the outer layer fireproof board 3. The friction between the fixing plate 47, the inner layer fireproof board 2 and the outer layer fireproof board 3 is too large, so that the fixing plate 47 The fixed plate 47 cannot be pulled out, so that the T-block 46 is fixedly installed inside the second mounting block 45. The four fixed plates 47 completely fill the gap between the inner fireproof board 2 and the outer fireproof board 3, so that the inner fireproof board 2 and the outer fireproof board 3 are fixedly installed on the four sides of the steel column body 1. The steel column body 1 is provided with multi-layer protection through the second fireproof layer 303, the second base plate 302, the heat insulation layer 301, the first fireproof layer 203, the first base plate 202, and the fireproof filler 201;

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A fire-resistant steel structure building, comprising a steel column body (1), characterized in that: The outer wall of the steel column body (1) is provided with a fire-resistant structure, and the fire-resistant structure includes an inner fire-resistant board (2) and an outer fire-resistant board (3). The outer wall of the steel column body (1) is provided with a mounting assembly that allows the inner fire-resistant board (2) to be fixedly mounted on four sides of the steel column body (1). The outer wall of the inner fire-resistant board (2) is provided with a connecting assembly for mounting the inner fire-resistant board (2).

2. The fire-resistant steel structure building according to claim 1, characterized in that: The inner fireproof board (2) comprises, from the inside to the outside, a fireproof filler (201), a first substrate (202) and a first fireproof layer (203), wherein the fireproof filler (201) is quartz wool, and the first fireproof layer (203) is sprayed on the outer wall of the first substrate (202).

3. The fire-resistant steel structure building according to claim 1, characterized in that: The outer fireproof board (3) comprises, from the inside to the outside, a heat insulation layer (301), a second substrate (302) and a second fireproof layer (303).

4. The fire-resistant steel structure building according to claim 1, characterized in that: The installation assembly comprises a connecting rod (21), the inner layer fireproof panels (2) are provided in a plurality of groups, each group of inner layer fireproof panels (2) comprises four inner layer fireproof panels (2), the connecting rod (21) is fixedly installed on opposite sides of the left and right inner layer fireproof panels (2), the inner walls of the inner layer fireproof panels (2) on the front and rear sides are provided with rivet grooves (22), and the opposite sides of the inner layer fireproof panels (2) on the front and rear sides are both fixedly provided with plug rods (23).

5. The fire-resistant steel structure building according to claim 1, characterized in that: The connection assembly comprises a bottom plate (41), wherein the bottom plate (41) is fixedly mounted on the lower end of a side of the inner layer fireproof plate (2) away from the steel column body (1), and a first mounting block (42) is fixedly mounted on the side of the inner layer fireproof plate (2) away from the steel column body (1).

6. The fire-resistant steel structure building according to claim 5, characterized in that: A slide groove (4201) is provided on the inner wall of the first mounting block (42), and the slide groove (4201) is slidably connected to an I-shaped block (43). A corner mounting block (44) is fixedly installed on one end of the I-shaped block (43) away from the first mounting block (42), and mounting grooves (4401) are provided on the inner walls on both sides of the corner mounting block (44), and the outer layer fire-resistant board (3) is installed on both sides of the corner mounting block (44) through the mounting grooves (4401).

7. The fire-resistant steel structure building according to claim 6, characterized in that: Second mounting blocks (45) are fixedly mounted on both sides of the outer wall of the inner layer fireproof board (2), and a second mounting groove (4501) is formed on the inner wall of the second mounting block (45).

8. The fire-resistant steel structure building according to claim 7, characterized in that: A T-shaped block (46) is slidably mounted on the inner wall of the second mounting groove (4501), and the side of the T-shaped block (46) away from the second mounting block (45) is fixedly connected to the outer fire-resistant board (3), and a fixing plate (47) is arranged between the outer fire-resistant board (3) and the inner fire-resistant board (2).

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