Fabricated steel structure fireproof connection node structure

Abstract

The utility model discloses an assembly type steel structure fireproof connection node structure, and relates to the technical field of steel structure connection nodes, the assembly type steel structure fireproof connection node structure comprises four steel structures, each steel structure is integrated with a fireproof mechanism for fire prevention, and the steel structures are connected with the fireproof mechanism. The fireproof mechanism comprises triangular connecting pieces, side expansion fireproof gaskets and heat insulation cotton, and supporting steel is fixedly installed at the ends of the three sides of each triangular connecting piece. The heat insulation cotton, the side expansion fireproof gaskets and the end expansion fireproof gaskets are arranged on the triangular connecting piece and matched with one another, the heat insulation cotton can achieve a good heat insulation effect, the rising speed of the node temperature is delayed, and therefore the fire resistance of the node is improved, and when the fire behavior is serious, the heat insulation effect is good. The side expansion fireproof gaskets and the end expansion fireproof gaskets can expand rapidly to form a thick foam-shaped heat insulation layer to prevent fire from spreading.

Description

Technical Field

[0001] This utility model relates to the field of steel structure connection node technology, and in particular to a prefabricated steel structure fireproof connection node structure. Background Technology

[0002] Prefabricated steel structure nodes are key components that connect various steel structural members in prefabricated steel structure buildings. They ensure that the load-bearing capacity of the nodes is higher than that of the components, so that when the structure is under stress, the components yield and deform before the nodes, thereby maximizing the energy dissipation capacity of the structure and preventing the collapse of the entire structure due to node failure.

[0003] However, the existing prefabricated steel structure connection nodes have the following drawbacks: the nodes of existing steel structures are mostly interconnected with steel materials, which are extremely sensitive to temperature. When the temperature is too high, the strength of the steel at the node decreases, the load-bearing capacity decreases, and the force cannot be effectively transmitted and distributed, thus affecting the stability of the entire steel structure. The deformation capacity of the node is also weakened due to high temperature, making it more prone to brittle failure when bearing load, thus reducing the ductility of the structure. Utility Model Content

[0004] Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a prefabricated steel structure fireproof connection node structure. It solves the problem that the nodes of existing steel structures are mostly interconnected with steel materials, which are extremely sensitive to temperature. When the temperature is too high, the strength of the steel at the node decreases, the load-bearing capacity decreases, and the force cannot be effectively transmitted and distributed, thus affecting the stability of the entire steel structure. The deformation capacity of the node is also weakened due to high temperature, making it more prone to brittle failure when bearing load, thus reducing the ductility of the structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A prefabricated steel structure fireproof connection node structure includes four steel structures. Each steel structure integrates a fireproof mechanism, which includes a triangular connector, side expansion fireproof gaskets, and thermal insulation cotton. Supporting steel is fixedly installed on three sides of each triangular connector. An assembly plate is provided between every two steel structures. An embedded groove is formed at the upper end of the assembly plate. An assembly screw groove is formed at the upper end of each triangular connector. A side groove is formed at the side end of each triangular connector. Thermal insulation cotton is fixedly installed on the inner wall of the side groove. Side expansion fireproof gaskets are fixedly installed on both sides of each triangular connector. An assembly bolt is threaded and rotatably installed on the inner wall of each assembly screw groove. An end expansion fireproof gasket is fixedly installed at the end of each triangular connector.

[0008] Preferably, the steel structures are arranged in pairs, with the steel structures on each side facing opposite directions, and the two groups of driving steel structures facing opposite directions.

[0009] Preferably, the upper end of the mounting plate is provided with at least two mounting slots, and each mounting bolt passes through the inner sidewall of the mounting slot.

[0010] Compared with the prior art, the present invention has the following beneficial effects.

[0011] 1. This device combines heat insulation cotton, side expansion fireproof gaskets, and end expansion fireproof gaskets on the triangular connectors. The heat insulation cotton provides good heat insulation, slows down the temperature rise of the joint, and thus improves the fire resistance of the joint. In the event of a severe fire, the side and end expansion fireproof gaskets will expand rapidly to form a thick foam-like heat insulation layer. This layer, when filled at the connection joint, can effectively block heat, flames, and smoke, preventing the spread of fire.

[0012] Second, this device uses a combination of side grooves and inner grooves to embed the heat insulation cotton into the side grooves and the end expansion fireproof gaskets into the inner grooves, so that the structure forms an integrated assembly. It can better adapt to various complex steel structure connection node forms without affecting the appearance of the structure. Attached Figure Description

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a structural diagram of the steel structure of this utility model;

[0015] Figure 2 This is a structural diagram of the assembly buckle plate of this utility model;

[0016] Figure 3 This is a structural diagram of the supporting steel of this utility model;

[0017] Figure 4 This is a structural diagram of the heat insulation cotton of this utility model.

[0018] Legend: 1. Steel structure; 2. Triangular connector; 21. Assembly screw groove; 22. Side groove; 23. Thermal insulation cotton; 24. Side expansion fireproof gasket; 25. Assembly bolt; 26. End expansion fireproof gasket; 3. Supporting steel; 4. Assembly buckle plate; 41. Mounting groove; 42. Embedded groove. Detailed Implementation

[0019] This application provides a prefabricated steel structure fireproof connection node structure, which effectively solves the technical problem that existing steel structure nodes, which are mostly interconnected steel materials, are extremely sensitive to temperature. When the temperature is too high, the strength of the steel at the node decreases, the load-bearing capacity decreases, and the force cannot be effectively transferred and distributed, thus affecting the stability of the entire steel structure. The deformation capacity of the node is also weakened due to high temperature, making it more prone to brittle failure under load and reducing the ductility of the structure. This device uses heat insulation cotton 23, side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 in combination on the triangular connector 2. The heat insulation cotton 23 can play a good heat insulation role, slowing down the temperature rise of the node, thereby improving the fire resistance of the node. In the case of a more serious fire, the side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 will expand rapidly to form a thick foam-like heat insulation layer, which fills the connection node and can effectively block heat, flames and smoke, preventing the spread of fire.

[0020] Example

[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4The technical solution described in this application effectively addresses the problem that existing steel structure joints, which are mostly interconnected steel materials, are extremely sensitive to temperature. When the temperature is too high, the strength of the steel at the joint decreases, the load-bearing capacity declines, and the force cannot be effectively transmitted and distributed, thus affecting the stability of the entire steel structure. The deformation capacity of the joint is also weakened by high temperatures, making it more prone to brittle failure under load, thus reducing the ductility of the structure. The overall concept is as follows: A prefabricated steel structure fireproof connection joint structure includes four steel structures 1. Each steel structure 1 integrates a fireproof mechanism, which includes three... The triangular connector 2, the side expansion fireproof gasket 24, and the heat insulation cotton 23 are provided. Each triangular connector 2 has a supporting steel 3 fixedly installed on three sides. There is also an assembly buckle 4 between every two steel structures 1. The upper end of the assembly buckle 4 has an embedded groove 42. When assembling multiple steel structures 1, the user can align the assembly screw groove 21 on the steel structure 1 with the mounting groove 41 on the assembly buckle 4, so that the end expansion fireproof gasket 26 is snapped and fixed to the inner side wall of the embedded groove 42. After each steel structure 1 is placed according to its assembly position, it can be fixed to the assembly screw groove 21 and the mounting groove 41 through the assembly bolt 25, thereby completing the assembly of the steel structure 1.

[0022] Each triangular connector 2 has a through mounting screw groove 21 at its upper end and a side groove 22 at its side end. Each heat insulation cotton 23 is fixedly installed on the inner side wall of the side groove 22. Heat insulation cotton 23 is also provided at the side end of the triangular connector 2. The heat insulation cotton 23 has good heat insulation performance and can effectively prevent heat from being transferred to the steel structure node. In the event of a fire, it can slow down the rise rate of the node temperature, thereby improving the fire resistance of the node.

[0023] Each triangular connector 2 has a side expansion fireproof gasket 24 fixedly installed at both ends. Each assembly screw groove 21 has an assembly bolt 25 rotatably installed through the thread on the inner side wall. Each triangular connector 2 has an end expansion fireproof gasket 26 fixedly installed at the end. Side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 are provided at both ends and the end of the triangular connector 2. The side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 are generally composed of organic resin, inorganic filler, expansion agent, flame retardant, etc. The side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 are provided at the joint of the triangular connector 2 and the joint of the triangular connector 2 and the assembly buckle plate 4. When exposed to high temperature, the side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 will expand rapidly to form a thick foam-like heat insulation layer. It fills the connection node and can effectively block heat, flame and smoke, and prevent the spread of fire.

[0024] The steel structure 1 is in pairs, with the directions of the two steel structures 1 on each side being opposite. The directions of the two sets of driving steel structures 1 are opposite. The upper end of the mounting plate 4 is provided with at least two mounting grooves 41, and each mounting bolt 25 passes through the inner wall of the mounting groove 41.

[0025] To address the problems existing in the prior art, this utility model provides a prefabricated steel structure fireproof connection node structure. This device uses heat insulation cotton 23, side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 arranged on the triangular connector 2. The heat insulation cotton 23 can play a good heat insulation role, slowing down the temperature rise of the node, thereby improving the fire resistance of the node. In the case of a more serious fire, the side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 will expand rapidly to form a thick foam-like heat insulation layer. This layer is filled at the connection node and can effectively block heat, flames and smoke, preventing the spread of fire.

[0026] Steel structure 1: serving as the main body of the prefabricated steel structure.

[0027] Triangular connector 2: used to connect the supporting steel 3. The triangular shape enhances the stability of the connection node.

[0028] Assembly screw groove 21: It is opened at the upper end of the triangular connector 2, and after being aligned with the mounting groove 41 on the mounting plate 4, it allows the assembly bolt 25 to pass through.

[0029] Side groove 22: It is opened at the side end of the triangular connector 2 and is used to embed the heat insulation cotton 23, providing installation space for the heat insulation cotton 23 and ensuring that the heat insulation cotton 23 is tightly connected to the triangular connector 2.

[0030] Insulation cotton 23: It is fixedly installed on the inner side wall of the side groove 22. With its good heat insulation performance, it effectively prevents heat from being transferred to the steel structure node, slows down the temperature rise rate of the node, and improves the fire resistance of the node.

[0031] Side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26: Composed of organic resin, inorganic filler, expansion agent, flame retardant, etc., they rapidly expand at high temperatures to form a foam-like heat insulation layer, which is filled at the connection joint to block heat, flame and smoke and prevent the spread of fire.

[0032] Assembly bolt 25: It is installed through the assembly bolt groove 21 and the mounting groove 41 to fasten the steel structure 1, the triangular connector 2 and the assembly buckle plate 4, so as to ensure the overall strength and stability of the steel structure after assembly.

[0033] Support steel 3: It is fixedly installed on the three ends of the triangular connector 2 to provide auxiliary support.

[0034] Assembly plate 4: used to connect adjacent steel structures 1, the mounting groove 41 on it mates with the assembly screw groove 21 of the triangular connector 2.

[0035] Mounting groove 41: It is opened through the upper end of the mounting plate 4, corresponding to the mounting screw groove 21, to provide an installation channel for the mounting bolt 25 and ensure that the steel structure 1 is firmly connected to the mounting plate 4.

[0036] Embedded groove 42: It is opened through the upper end of the mounting plate 4 and is used to embed the end expansion fireproof gasket 26, so that the end expansion fireproof gasket 26 is firmly installed and closely fits the mounting plate 4, thereby improving the fireproof effect.

[0037] Working principle:

[0038] When assembling multiple steel structures 1, the user can align the mounting screw grooves 21 on the steel structure 1 with the mounting grooves 41 on the mounting plate 4, so that the end expansion fireproof gaskets 26 are snapped and fixed to the inner side wall of the embedded groove 42. After each steel structure 1 is placed according to its assembly position, it can be fixed to the mounting screw grooves 21 and mounting grooves 41 by mounting bolts 25, thus completing the assembly of the steel structure 1. Side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 are provided at both ends of the triangular connector 2. The side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 are generally made of organic resin, inorganic fillers, expansion agents, etc. Composed of flame retardants and other components, side-expanding fireproof gaskets 24 and end-expanding fireproof gaskets 26 are installed at the joints of the triangular connectors 2 and 2, and at the joints of the triangular connectors 2 and the mounting plate 4. When exposed to high temperatures, the side-expanding fireproof gaskets 24 and end-expanding fireproof gaskets 26 rapidly expand, forming a thick foam-like heat insulation layer. This layer, filling the connection joints, effectively blocks heat, flames, and smoke, preventing the spread of fire. Heat insulation cotton 23 is also provided at the side ends of the triangular connectors 2. Heat insulation cotton 23 has excellent heat insulation properties, effectively preventing heat transfer to the steel structure joints and delaying the temperature rise of the joints in the event of a fire. The increased speed enhances the fire resistance of the joints, helping to maintain the stability of the steel structure during a fire. In existing steel structures, the joints are mostly interconnected steel components, which are extremely sensitive to temperature. Excessive temperature reduces the strength and load-bearing capacity of the steel at the joints, hindering the effective transmission and distribution of force, thus affecting the overall stability of the steel structure. The deformation capacity of the joints also weakens due to high temperatures, making them more prone to brittle failure under load and reducing the structure's ductility. This device addresses this by incorporating heat-insulating cotton 23, side-expanding fireproof gaskets 24, and end-expanding fireproof gaskets 26 on the triangular connector 2. The heat-insulating cotton 23 provides better insulation. The insulation effect slows down the temperature rise of the joint, thereby improving the fire resistance of the joint. In the event of a severe fire, the side expansion fireproof gaskets 24 and end expansion fireproof gaskets 26 will expand rapidly to form a thick foam-like insulation layer. This layer, filled at the connection joint, can effectively block heat, flames and smoke, preventing the spread of fire. The device uses a combination of side grooves 22 and inner grooves 42, so that the insulation cotton 23 is embedded in the side grooves 22 and the end expansion fireproof gaskets 26 are embedded in the inner grooves 42, making the structure an integrated assembly. It can adapt well to various complex steel structure connection joint forms without affecting the appearance of the structure.

[0039] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A prefabricated steel structure fireproof connection node structure, comprising steel structures (1), wherein the number of steel structures (1) is four, characterized in that, Each of the steel structures (1) is equipped with a fire-resistant mechanism for fire prevention; The fireproof mechanism includes a triangular connector (2), a side expansion fireproof pad (24), and heat insulation cotton (23). Each of the three sides of the triangular connector (2) is fixedly installed with a supporting steel (3). A mounting plate (4) is provided between each two steel structures (1). The upper end of the mounting plate (4) is provided with an embedded groove (42).

2. The prefabricated steel structure fireproof connection node structure as described in claim 1, characterized in that: Each of the triangular connectors (2) has a through mounting screw groove (21) at its upper end.

3. The fireproof connection node structure for prefabricated steel structures as described in claim 2, characterized in that: Each of the triangular connectors (2) has a side groove (22) through it at its side end, and each of the heat insulation cotton (23) is fixedly installed on the inner side wall of the side groove (22).

4. The prefabricated steel structure fireproof connection node structure as described in claim 3, characterized in that: Each of the triangular connectors (2) has a side expansion fireproof gasket (24) fixedly installed on both ends.

5. The fireproof connection node structure for prefabricated steel structures as described in claim 4, characterized in that: Each of the assembly screw grooves (21) has an assembly bolt (25) rotatably mounted through the thread on its inner sidewall, and each of the triangular connectors (2) has an end expansion fireproof gasket (26) fixedly mounted at its end.

6. The fireproof connection node structure for prefabricated steel structures as described in claim 5, characterized in that: The steel structure (1) is in pairs, and the steel structures (1) on each side are in opposite directions.

7. The prefabricated steel structure fireproof connection node structure as described in claim 6, characterized in that: The two sets of driving steel structures (1) are in opposite directions.

8. The fireproof connection node structure for prefabricated steel structures as described in claim 7, characterized in that: The upper end of the mounting plate (4) is provided with at least two mounting slots (41), and each mounting bolt (25) passes through the inner sidewall of the mounting slot (41).

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