Composite steel structural panel with fireproof coating

Abstract

The utility model relates to steel sheet technical field, and disclose a kind of composite steel structure board with fireproof coating, including frame, the outer end two sides surface of frame is connected with connecting block one and connecting block two respectively, and connecting plate is pasted respectively in the upper and lower surface two sides of connecting block one and connecting block two, installation slot is respectively set up in the upper and lower surface two sides of frame, and steel plate is respectively set in the inner portion of installation slot, and the synergistic effect of expansion type organic fireproof layer and epoxy zinc-rich layer in steel plate inner side, when fire occurs, expansion type organic fireproof layer is heated rapidly and expands to form carbonized layer, and heat transfer is blocked, and the strength of steel plate is delayed to drop;Epoxy zinc-rich layer forms zinc oxide protective film to prevent steel plate corrosion, double protection ensures that steel plate still maintains structural strength under high temperature fire environment, provides reliable fireproof barrier for building, effectively guarantees personnel life and property safety.

Description

Technical Field

[0001] This utility model relates to the field of steel plate technology, specifically to a composite steel structure plate with a fireproof coating. Background Technology

[0002] Against the backdrop of the rapid development of the modern construction industry, steel structures have been widely used in high-rise buildings, large stadiums, and industrial plants due to their advantages such as high strength, light weight, and short construction period. As an important component of steel structures, the performance of steel structure panels directly affects the safety and functionality of building structures. However, traditional steel structure panels have obvious defects: on the one hand, steel itself has high thermal conductivity, and in the event of a fire, the temperature rises rapidly, which can lead to a sharp drop in the strength of the steel, making it very easy to cause structural collapse and resulting in serious loss of life and property; on the other hand, traditional steel structure panels lack effective fire protection measures, and conventional fireproof coatings have poor durability and are easily corroded by the external environment, making it difficult to maintain stable fire resistance performance in the long term.

[0003] Meanwhile, in terms of structural stability, traditional steel structure panels have a single internal support structure, which makes it difficult to effectively distribute the load. When subjected to large external forces or uneven loads, local stress concentration is likely to occur, leading to structural deformation or even damage. In addition, the single structural design cannot meet the diverse functional requirements of modern buildings such as sound insulation and environmental protection.

[0004] Therefore, developing a composite steel structure panel with a fire-resistant coating has become an urgent problem to be solved in the construction industry, providing a new solution to overcome the technical bottlenecks of traditional steel structure panels. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a composite steel structure panel with a fire-retardant coating, thus solving the aforementioned problems.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a composite steel structure panel with a fireproof coating, comprising a frame, wherein connecting block one and connecting block two are respectively connected to the outer two sides of the frame, connecting plates are respectively attached to the upper and lower sides of connecting block one and connecting block two, and mounting grooves are respectively opened on the upper and lower sides of the frame, and steel plates are respectively arranged inside the mounting grooves.

[0007] Preferably, triangular support members are provided around the inner wall of the frame, and bolts are connected to both sides of the surface of the triangular support members. The other end of each bolt is fixedly connected to the inner wall of the frame.

[0008] Preferably, the inner wall of the frame is connected by several support beams arranged alternately horizontally and vertically, and several sound-absorbing cottons are filled in the gaps between the support beams.

[0009] Preferably, a number of through holes are arranged around the outer edges of the two steel plates, and bolts are installed inside each through hole. The lower ends of the bolts are connected to the mounting grooves on the frame surface.

[0010] Preferably, the outer surfaces of the two steel plates are coated with a silicone acrylic coating, an intumescent organic fireproof layer is connected to the inner surface of the steel plates, an epoxy zinc-rich layer is connected to the inner side of the intumescent organic fireproof layer, and the lower end of the epoxy zinc-rich layer is attached to the outer surface of several support beams.

[0011] Preferably, a slider is fixedly connected to the center of the front end surface of the first connecting block, and limiting grooves are respectively opened on both sides of the front end surface of the first connecting block. A sliding groove is opened in the center of the front end surface of the second connecting block, and limiting blocks are fixedly connected to both sides of the front end surface of the second connecting block. The slider is correspondingly slidably sleeved inside the sliding groove, and the limiting blocks are correspondingly slidably sleeved inside the limiting groove.

[0012] Preferably, a plurality of through holes are arranged on both sides of the outer end surface of the connecting plate, and bolts are respectively fitted inside the through holes. The lower ends of the bolts are respectively fixedly connected to the outer end surfaces of the connecting block one and the connecting block two.

[0013] Compared with the prior art, this utility model provides a composite steel structure panel with a fireproof coating, which has the following beneficial effects:

[0014] Through the synergistic effect of the intumescent organic fireproof layer and the epoxy zinc-rich layer on the inner side of the steel plate, when a fire occurs, the intumescent organic fireproof layer expands rapidly upon heating to form a carbonized layer, which blocks heat transfer and slows down the decline in the strength of the steel plate; the epoxy zinc-rich layer forms a zinc oxide protective film to prevent the steel plate from rusting. This dual protection ensures that the steel plate maintains its structural strength in a high-temperature fire environment, providing a reliable fire barrier for the building and effectively protecting the lives and property of people.

[0015] The robust connection between the frame and the steel plate, along with the three-dimensional support network formed by the triangular supports and support beams, ensures that the composite steel structure plate is subjected to stress evenly when subjected to external forces. This prevents the fireproof coating from failing due to structural deformation. At the same time, the silicone acrylic coating provides corrosion protection to the outer steel plate, reducing the erosion of the fireproof coating by the external environment. The combined effect of multiple structures and material protection significantly improves the durability and fire resistance life of the composite steel structure plate, reduces later maintenance costs, and enhances the long-term stability of the building's fire resistance performance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the steel plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of connecting block one and connecting block two of this utility model.

[0020] In the diagram: 1. Frame; 2. Steel plate; 3. Connecting block one; 4. Connecting block two; 5. Connecting plate; 6. Support beam; 7. Sound-absorbing cotton; 8. Triangular support; 9. Bolt one; 10. Silicone acrylic coating; 11. Bolt two; 12. Intumescent organic fireproof layer; 13. Epoxy zinc-rich layer; 14. Bolt three; 15. Slider; 16. Limiting block. Detailed Implementation

[0021] 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 protection scope of the present utility model.

[0022] Please see Figure 1-4 A composite steel structure panel with a fireproof coating includes a frame 1. Connecting blocks 3 and 4 are respectively connected to the outer two sides of the frame 1. Connecting plates 5 are respectively attached to the upper and lower sides of the connecting blocks 3 and 4. Mounting grooves are respectively opened on the upper and lower sides of the frame 1, and steel plates 2 are respectively installed inside the mounting grooves.

[0023] Furthermore, triangular support members 8 are provided around the inner wall of the frame 1, and bolts 9 are connected to both sides of the surface of the triangular support members 8. The other end of each bolt 9 is fixedly connected to the inner wall of the frame 1.

[0024] Furthermore, several support beams 6 are arranged alternately horizontally and vertically on the inner wall of the frame 1, and several sound-absorbing cotton 7 are filled in the gaps between the support beams 6.

[0025] Furthermore, several through holes are arranged around the outer edges of the two steel plates 2, and bolts 11 are installed inside each through hole. The lower ends of the bolts 11 are connected to the mounting grooves on the surface of the frame 1.

[0026] Furthermore, the outer surfaces of the two steel plates 2 are coated with a silicone acrylic coating 10, and an intumescent organic fireproof layer 12 is connected to the inner surface of the steel plates 2. An epoxy zinc-rich layer 13 is connected to the inner side of the intumescent organic fireproof layer 12, and the lower end of the epoxy zinc-rich layer 13 is attached to the outer surface of several support beams 6.

[0027] Furthermore, a slider 15 is fixedly connected to the center of the front surface of the first connecting block 3, and limiting grooves are respectively opened on both sides of the front surface of the first connecting block 3. A sliding groove is opened in the center of the front surface of the second connecting block 4, and limiting blocks 16 are fixedly connected to both sides of the front surface of the second connecting block 4. The slider 15 is correspondingly slidably sleeved inside the sliding groove, and the limiting block 16 is correspondingly slidably sleeved inside the limiting groove.

[0028] Furthermore, several through holes are arranged on both sides of the outer end surface of the connecting plate 5, and bolts 3 14 are respectively fitted inside the through holes. The lower ends of the bolts 3 14 on both sides are fixedly connected to the outer end surfaces of the connecting block 1 3 and the connecting block 2 4.

[0029] 1. Framework

[0030] Frame 1 is the main supporting structure of the composite steel structure panel. Mounting grooves are provided on both sides of its upper and lower surfaces for installing steel plates 2, allowing the steel plates 2 to be firmly embedded and fixedly connected to frame 1 using bolts 11. Connecting blocks 3 and 4 are respectively connected to the outer two sides of frame 1, providing interfaces for splicing between composite steel structure panels. Meanwhile, triangular support members 8 are installed around the inner walls of frame 1, fixed with bolts 9. Several support beams 6 are also arranged alternately horizontally and vertically inside. The triangular support members 8 and support beams 6 together form a three-dimensional support network, enhancing the stability and load-bearing capacity of frame 1 and ensuring that the load is evenly distributed when subjected to external forces.

[0031] 2. Steel plate

[0032] Steel plate 2 is embedded in the mounting grooves on both sides of the upper and lower surfaces of frame 1, and is fixedly connected to the mounting grooves on the surface of frame 1 by bolts 11, ensuring a tight fit with frame 1. The outer surface of steel plate 2 is coated with a silicone acrylic coating 10, which protects the steel plate and resists external corrosion; the inner surface is sequentially connected with an intumescent organic fireproof layer 12 and an epoxy zinc-rich layer 13. The intumescent organic fireproof layer 12 expands when heated in a fire to form a carbonized layer, blocking heat transfer; the epoxy zinc-rich layer 13 protects the steel plate through electrochemical protection, ensuring that the steel plate maintains its structural strength under extreme conditions such as fire. The lower end of the epoxy zinc-rich layer 13 on the inner side of steel plate 2 is attached to the outer surface of several supporting beams 6, further enhancing the overall structure.

[0033] 3. Connecting Block 1

[0034] Connecting block 1 (3) is attached to one side of the outer end of frame 1. A slider 15 is fixedly connected to the center of its front surface, and limiting grooves are provided on both sides. Connecting block 1 (3) plays an important role in the splicing of composite steel structure panels. The slider 15 can be slidably fitted into the sliding groove on the front surface of connecting block 2 (4), and the limiting grooves on both sides are slidably fitted into the limiting blocks 16 on both sides of the front surface of connecting block 2 (4), realizing positioning and sliding connection, and facilitating the splicing and installation of composite steel structure panels in cooperation with connecting block 2 (4).

[0035] 4. Connecting Block Two

[0036] Connecting block 2 4 is connected to the other side surface of the outer end of frame 1. A sliding groove is opened in the center of its front surface, and limiting blocks 16 are fixedly connected to both sides. It cooperates with connecting block 1 3. When splicing composite steel structure panels, the sliding groove of connecting block 2 4 slides and engages with the sliding block 15 of connecting block 1 3, and the limiting blocks 16 slide and engage with the limiting groove of connecting block 1 3, so as to realize the positioning and sliding splicing between adjacent composite steel structure panels and ensure the stability of the spliced ​​structure.

[0037] 5. Connecting plate

[0038] Connecting plate 5 is attached to the upper and lower surfaces of connecting block 3 and connecting block 4, with several through holes arranged on both sides of its outer end surface. After the composite steel structure panels are spliced, bolts 14 are inserted into these through holes, and the lower ends of bolts 14 are fixedly connected to the outer end surfaces of connecting block 3 and connecting block 4, respectively, thereby firmly connecting the adjacent composite steel structure panels into a whole, ensuring that the structure can work together under stress and enhancing the overall stability of the structure.

[0039] 6. Support beam

[0040] The support beams 6 are arranged alternately horizontally and vertically within the frame 1, situated within the internal space of the frame 1. The support beams 6, together with the triangular support members 8 surrounding the inner walls of the frame 1, form a three-dimensional support network. When the composite steel structure panel is subjected to external forces, the support beams 6 effectively distribute the load, preventing localized stress concentration that could lead to structural damage. Simultaneously, the gaps between the support beams 6 provide space for the filling of the sound-absorbing cotton 7, and the support beams 6 also provide support for the sound-absorbing cotton 7, enabling it to stably perform its sound absorption and noise reduction functions.

[0041] 7. Sound-absorbing cotton

[0042] Sound-absorbing cotton 7 is filled in the gaps of the supporting beams 6. Utilizing its porous structure, it effectively absorbs and attenuates sound wave energy when it enters the composite steel structure panel, converting sound energy into heat energy. This achieves excellent sound absorption and noise reduction, meeting the building's sound insulation requirements. The sound-absorbing cotton 7 filling the gaps of the supporting beams 6 not only serves a sound-absorbing function but also enhances the overall integrity of the structure to a certain extent, buffering the impact of external forces on the structure.

[0043] 8. Triangular support components

[0044] Triangular support members 8 are installed around the inner wall of the frame 1 and are fixedly connected to the inner wall of the frame 1 by bolts 9. Utilizing the stability principle of triangles, the triangular support members 8 can effectively enhance the overall deformation resistance and load-bearing capacity of the frame 1. Together with the support beams 6 arranged alternately horizontally and vertically inside the frame 1, they form a three-dimensional support network, jointly ensuring the structural stability of the composite steel structure plate under external forces, so that the structure can work reliably under various working conditions.

[0045] 9. Bolt 1

[0046] Bolt 9 is used to fix the triangular support 8 to the inner wall of the frame 1. One end of the bolt is connected to both sides of the surface of the triangular support 8, and the other end is fixed to the inner wall of the frame 1. By tightening bolt 9, the triangular support 8 is tightly connected to the frame 1, ensuring that the triangular support 8 can play a role in enhancing the stability and load-bearing capacity of the frame 1. It is a key connector for constructing the stable support structure inside the frame 1.

[0047] 10. Silicone-acrylic surface coating

[0048] The silicone acrylic coating 10 is applied to the outer surface of the steel plate 2 and serves as the outer protective coating of the steel plate 2. This coating has good weather resistance and chemical stability, effectively resisting external environmental erosion, preventing the steel plate 2 from being oxidized and corroded, protecting the surface quality of the steel plate 2, and extending the service life of the steel plate 2. It also indirectly protects the fireproof coating on the inner side of the steel plate 2, allowing it to maintain good performance under normal operating conditions.

[0049] 11. Bolt Two

[0050] Bolt 211 is used to fix the steel plate 2 to the mounting groove surface opened on the surface of the frame 1. After the steel plate 2 is embedded in the mounting groove of the frame 1, bolt 211 is passed through the through holes opened on the outer perimeter of the steel plate 2 and tightened to fix it on the frame 1, thereby realizing a firm connection between the steel plate 2 and the frame 1. This ensures that the steel plate 2 can stably perform its structural support and fireproof functions in the composite steel structure panel, and is an important component connecting the steel plate 2 and the frame 1.

[0051] 12. Intumescent organic fire-resistant layer

[0052] The intumescent organic fireproof layer 12 is attached to the inner surface of the steel plate 2 and is a key component of the fire protection system for the composite steel structure panel. In the event of a fire, as the ambient temperature rises, the intumescent organic fireproof layer 12 expands rapidly, forming a dense, foam-like carbonized layer. This carbonized layer effectively blocks heat transfer, slows the rate of temperature rise in the steel plate 2, and thus delays the decrease in the strength of the steel plate 2. This provides valuable time for the evacuation of people inside the building and for fire rescue, playing a crucial role in fire protection.

[0053] 13. Zinc-rich epoxy layer

[0054] The epoxy zinc-rich layer 13 is connected to the inner side of the intumescent organic fireproof layer 12, and its lower end is attached to the outer surface of several supporting beams 6. It protects the steel plate 2 by sacrificing itself through the principle of electrochemical protection. Even if the surface of the steel plate 2 is damaged, the zinc in the zinc-rich layer will preferentially react with oxygen in the air to form a dense zinc oxide protective film, preventing further corrosion of the steel plate 2 and ensuring that the steel plate 2 can still maintain a certain structural strength under extreme conditions such as fire.

[0055] 14. Bolt Three

[0056] Bolt 3.14 is used to fix the connecting plate 5, firmly connecting adjacent composite steel structure plates. After the connecting plate 5 is attached to the upper and lower surfaces of connecting block 1.3 and connecting block 2.4, bolt 3.14 is inserted into the through holes opened on both sides of the outer end surface of the connecting plate 5 and tightened to fix it to the outer end surfaces of connecting block 1.3 and connecting block 2.4, thereby connecting the adjacent composite steel structure plates into a whole, so that the structure can work together when under stress, ensuring the overall stability of the composite steel structure plates after splicing.

[0057] 15. Slider

[0058] The slider 15 is fixedly connected to the center of the front surface of the connecting block 3 and the connecting block 4, and is a key structural component for splicing the connecting block 3 and the connecting block 4. During the splicing of the composite steel structure panels, the slider 15 is correspondingly slidably sleeved inside the groove on the front surface of the connecting block 4. Through this sliding sleeve method, the positioning and sliding connection between adjacent composite steel structure panels are realized, which facilitates installation while ensuring that the spliced ​​structure has good stability and integrity.

[0059] 16. Limiting block

[0060] The limiting block 16 is fixed on both sides of the front surface of the connecting block 2 4. Its outer dimensions match the limiting grooves opened on both sides of the front surface of the connecting block 1 3. The limiting block 16 is embedded in the limiting groove of the connecting block 1 3. It forms a dual positioning mechanism with the cooperation of the slider 15 and the sliding groove to prevent the connecting block 1 3 and the connecting block 2 4 from being misaligned during splicing. The tight fit between the limiting block 16 and the limiting groove can effectively transmit and disperse the external force on the splicing part, and enhance the structural strength and stability of the splicing part of the composite steel structure plate.

[0061] Instructions for use

[0062] Frame 1 serves as the main supporting structure. Triangular support members 8, arranged around its inner walls, are fixed to the inner walls of the frame via bolts 9, forming a stable triangular structure that effectively enhances the overall deformation resistance and load-bearing capacity of the frame. The alternating horizontal and vertical support beams 6 inside frame 1 further distribute the load, working together with the triangular support members 8 to form a three-dimensional support network. This allows the structure to evenly transmit stress when subjected to external forces, preventing localized stress concentration that could lead to structural damage. Sound-absorbing cotton 7 fills the gaps between the support beams 6. When sound waves enter the composite steel structure plate, the porous structure of the sound-absorbing cotton effectively absorbs and attenuates the sound wave energy, converting sound energy into heat energy, thus achieving excellent sound absorption and noise reduction effects, meeting the requirements of applications demanding sound insulation performance. The silicone acrylic coating 10 applied to the outer surface of steel plate 2 has good weather resistance and chemical stability, effectively resisting external environmental erosion, protecting the steel plate from oxidation and corrosion, and extending its service life. The inner side of steel plate 2 is sequentially connected to an intumescent organic fireproof layer 12 and an epoxy zinc-rich layer 13. In the event of a fire, as the ambient temperature rises, the intumescent organic fireproof layer 12... Upon heating, the steel expands rapidly, forming a dense, foam-like carbonized layer. This carbonized layer effectively blocks heat transfer, slows down the rate of temperature rise in the steel plate, and thus delays the decrease in steel plate strength. The zinc in the epoxy zinc-rich layer 13 also preferentially reacts with oxygen in the air to form a dense zinc oxide protective film, preventing further corrosion of the steel plate and ensuring that the steel plate maintains a certain structural strength even in extreme conditions such as fires. The connecting blocks 3 and 4 on both sides of the outer end of the frame 1 are connected by the slider 15 and the sliding groove, and the limiting block 16 and the limiting groove, respectively. The positioning and sliding connection facilitates the splicing and installation between the composite steel structure panels. The connecting plate 5 is fixed to the connecting block 3 and the connecting block 4 by bolt 314, which firmly connects the adjacent composite steel structure panels into a whole, ensuring that the structure can work together when under stress. At the same time, the steel plate 2 is fixedly connected to the mounting groove on the surface of the frame 1 by bolt 21, ensuring a tight connection between the steel plate and the frame. This makes the entire composite steel structure panel form an organic whole in terms of stress, sound insulation, fire prevention and other functions, meeting the performance requirements of the building structure in different usage scenarios.

[0063] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A composite steel structure panel with a fire-retardant coating, comprising a frame (1), characterized in that: The outer two sides of the frame (1) are respectively connected to connecting block one (3) and connecting block two (4). Connecting plates (5) are attached to the upper and lower surfaces of connecting block one (3) and connecting block two (4). Mounting grooves are opened on the upper and lower surfaces of the frame (1), and steel plates (2) are respectively installed inside the mounting grooves.

2. The composite steel structure panel with a fire-retardant coating according to claim 1, characterized in that: The frame (1) is provided with triangular support members (8) on all four sides of the inner wall. Bolts (9) are connected to both sides of the surface of the triangular support members (8). The other end of the bolts (9) is fixedly connected to the inner wall of the frame (1).

3. A composite steel structure panel with a fire-retardant coating according to claim 2, characterized in that: The inner wall of the frame (1) is connected by several support beams (6) arranged alternately horizontally and vertically, and several sound-absorbing cotton (7) are filled in the gaps between the support beams (6).

4. A composite steel structure panel with a fire-retardant coating according to claim 1, characterized in that: Several through holes are arranged around the outer edges of the two steel plates (2). Bolts (11) are installed inside each through hole. The lower ends of the bolts (11) are connected to the mounting grooves on the surface of the frame (1).

5. A composite steel structure panel with a fire-retardant coating according to claim 4, characterized in that: The outer surfaces of the two steel plates (2) are coated with a silicone acrylic coating (10), and an intumescent organic fireproof layer (12) is connected to the inner surface of the steel plates (2). An epoxy zinc-rich layer (13) is connected to the inner side of the intumescent organic fireproof layer (12), and the lower end of the epoxy zinc-rich layer (13) is attached to the outer surface of several support beams (6).

6. A composite steel structure panel with a fire-retardant coating according to claim 1, characterized in that: A slider (15) is fixedly connected to the center of the front surface of the first connecting block (3). Limiting grooves are opened on both sides of the front surface of the first connecting block (3). A sliding groove is opened in the center of the front surface of the second connecting block (4). Limiting blocks (16) are fixedly connected to both sides of the front surface of the second connecting block (4). The slider (15) is correspondingly slidably sleeved inside the sliding groove, and the limiting block (16) is correspondingly slidably sleeved inside the limiting groove.

7. A composite steel structure panel with a fire-retardant coating according to claim 1, characterized in that: The connecting plate (5) has several through holes arranged on both sides of its outer end surface. Bolts (14) are fitted inside the through holes. The lower ends of the bolts (14) on both sides are fixedly connected to the outer end surfaces of the connecting block (3) and the connecting block (4).

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