Corrosion-resistant steel structure shed

By employing multi-layer anti-corrosion coatings and sealing protection measures on the steel structure scaffolding, the problem of reduced structural strength caused by corrosive media erosion in outdoor environments has been solved, thereby improving corrosion resistance and extending service life.

CN224549337UActive Publication Date: 2026-07-24DONGGUAN LIANTAI STEEL STRUCTURE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LIANTAI STEEL STRUCTURE CO LTD
Filing Date
2025-09-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Steel structure sheds are susceptible to corrosion from rain, moisture, salt spray, and other corrosive media in outdoor environments, which can lead to a decrease in structural strength and even safety hazards.

Method used

It adopts a multi-layer anti-corrosion coating design, including a primer layer, an intermediate layer and a topcoat layer, and uses high-strength bolts to connect and fix the support columns, support beams and diagonal braces. Combined with a protective shell and protective cover, it seals and protects the key connections.

Benefits of technology

It significantly improves the corrosion resistance of steel structure scaffolding, extends its service life, enhances its safety, and avoids corrosion problems caused by wear at the joints.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to steel structure shed frame technical field, concretely is a kind of anticorrosive steel structure shed frame, including steel structure frame, steel structure frame includes support column, support beam, diagonal brace and support seat, the upper end of two groups of support column is fixedly connected respectively with the both ends of support beam, the upper end of support beam is fixedly connected respectively with the both ends of diagonal brace and support column, support seat is fixedly connected with the lower end of support column, the surface of support column, support beam, diagonal brace and support seat in steel structure frame is all brushed with primer layer, intermediate layer and finish paint layer;The surface of steel structure frame is protected by primer layer, intermediate layer and finish paint layer, the design of multilayer anticorrosive coating, significantly improve the corrosion resistance of steel structure frame, prolong the service life of steel structure frame, improve the use safety of steel structure frame.
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Description

Technical Field

[0001] This utility model relates to the field of steel structure shed technology, specifically to a corrosion-resistant steel structure shed. Background Technology

[0002] Steel structure engineering is a type of structure primarily made of steel, consisting mainly of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates. These components are typically connected by welds, bolts, or rivets. It is one of the major types of building structures. Among them, steel structure sheds are a type of building facility that uses steel as the main structural material. They are commonly used in various fields such as agriculture, industry, and commerce. Their core characteristic is the use of steel as the main framework, which provides advantages such as structural stability, strong resistance to wind and snow, low cost, and long service life.

[0003] Steel structure scaffolding is widely used in various building scenarios due to its advantages such as high strength, convenient construction and long service life. However, steel structures are exposed to the outdoor environment for a long time and are easily corroded by rainwater, moisture, salt spray and other corrosive media, which leads to a decrease in structural strength and even causes safety hazards.

[0004] Therefore, it is necessary to invent a corrosion-resistant steel structure canopy to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a corrosion-resistant steel structure canopy to solve the problem that steel structures are easily corroded by rainwater, moisture, salt spray and other corrosive media, which leads to a decrease in structural strength and even causes safety hazards.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant steel structure shed, comprising a steel structure frame, wherein the steel structure frame includes supporting columns, supporting beams, diagonal braces, and supporting seats, wherein the two ends of the supporting beams are respectively fixedly connected to the upper ends of two sets of supporting columns, the two ends of the diagonal braces are respectively fixedly connected to the supporting beams and supporting columns, and the supporting seats are fixedly connected to the lower ends of the supporting columns, wherein the surfaces of the supporting columns, supporting beams, diagonal braces, and supporting seats in the steel structure frame are all coated with a primer layer, an intermediate layer, and a topcoat layer.

[0007] By adopting the above technical solution, the supporting columns, supporting beams, diagonal braces and supporting bases are all connected and fixed with high-strength bolts. The primer layer, intermediate layer and topcoat layer protect the surface of the steel structure frame. Through the design of multi-layer anti-corrosion coating, the corrosion resistance of the steel structure frame is significantly improved, the service life of the steel structure frame is extended and the safety of the steel structure frame is improved.

[0008] Optionally, the primer layer is applied to the surfaces of the supporting column, supporting beam, diagonal brace and supporting base respectively, the intermediate layer is applied to the outside of the primer layer, and the topcoat layer is applied to the outside of the intermediate layer.

[0009] By adopting the above technical solution, the primer layer is an epoxy zinc-rich primer, the intermediate layer is an epoxy micaceous iron oxide intermediate paint, and the topcoat layer is a polyurethane topcoat. At the same time, the primer layer can be replaced with an inorganic zinc-rich primer, and the topcoat layer can be replaced with a fluorocarbon topcoat.

[0010] Optionally, a first protective shell is provided at the rear side of the connection between the supporting column, supporting beam and diagonal brace, and a second protective shell is provided at the front side of the connection between the supporting column, supporting beam and diagonal brace.

[0011] By adopting the above technical solution, the first protective shell and the second protective shell work together to protect the connection between the supporting column, the supporting beam and the diagonal brace.

[0012] Optionally, a first sealing sheet is fixedly connected to the front edge of the surface of the first protective shell, the front end of the first sealing sheet is stuck on the surface of the second protective shell, and a first sealing strip is fixedly connected to the interface between the first and second protective shells and the supporting column and the supporting beam.

[0013] By adopting the above technical solution, the first sealing plate seals the interface between the first protective shell and the second protective shell, and the first sealing strip seals the connection between the first and second protective shells and the supporting column and the supporting beam.

[0014] Optionally, multiple sets of first connecting blocks are fixedly connected to the front edge of the surface of the first protective shell, and multiple sets of second connecting blocks are fixedly connected to the rear edge of the surface of the second protective shell, with a first fixing bolt connecting the first connecting block and the second connecting block.

[0015] By adopting the above technical solution, through holes are opened on the surfaces of the first connecting block and the second connecting block. The first fixing bolt is passed through the through holes on the surfaces of the first connecting block and the second connecting block and locked, thereby locking and fixing the first protective shell and the second protective shell.

[0016] Optionally, a first protective cover is provided on the rear side of the connection between the support column and the support base, and a second protective cover is provided on the front side of the connection between the support column and the support base.

[0017] By adopting the above technical solution, the first protective cover and the second protective cover work together to protect the connection between the support column and the support base.

[0018] Optionally, a second sealing sheet is fixedly connected to the front edge of the surface of the first protective cover, the front end of the second sealing sheet is stuck on the surface of the second protective cover, and a second sealing strip is fixedly connected to both the upper and lower ends of the first and second protective covers.

[0019] By adopting the above technical solution, the second sealing strip is used to seal the connection between the first protective cover and the second protective cover, the second sealing strip at the upper end of the first protective cover and the second protective cover is used to seal the connection between them and the supporting column, and the second sealing strip at the lower end of the first protective cover and the second protective cover is used to seal the connection between them and the ground.

[0020] Optionally, multiple sets of third connecting blocks are fixedly connected to the front edge of the surface of the first protective cover, and multiple sets of fourth connecting blocks are fixedly connected to the rear edge of the surface of the second protective cover, with a second fixing bolt provided between the third connecting blocks and the fourth connecting blocks.

[0021] By adopting the above technical solution, through holes are opened on the surfaces of the third connecting block and the fourth connecting block. The second fixing bolt is passed through the through holes on its surface and locked, thereby locking and fixing the first protective cover and the second protective cover.

[0022] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. This utility model protects the surface of the steel structure frame through a primer layer, an intermediate layer, and a topcoat layer. The multi-layer anti-corrosion coating design significantly improves the corrosion resistance of the steel structure frame, extends its service life, and enhances its safety in use. 2. This utility model uses a first protective shell and a second protective shell to protect the connection between the support column, support beam and diagonal brace. The first protective cover and the second protective cover work together to protect the connection between the support column and the support base. This effectively avoids the problem of corrosive media corroding the worn parts after the anti-corrosion layer at the connection of the steel structure frame is worn, and further improves the service life of the steel structure frame. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the steel frame connection structure of this utility model; Figure 3 This is a schematic diagram of the anti-corrosion layer structure on the surface of the steel frame of this utility model; Figure 4 This is a schematic diagram of the structure of the first protective shell and the second protective shell of this utility model; Figure 5 This is a schematic diagram of the structure of the first and second protective covers of this utility model.

[0024] Explanation of reference numerals in the attached figures: 1. Steel frame; 11. Support column; 12. Support beam; 13. Diagonal brace; 14. Support base; 15. Primer layer; 16. Intermediate layer; 17. Topcoat layer; 2. First protective shell; 21. Second protective shell; 22. First sealing plate; 23. First connecting block; 24. Second connecting block; 25. First fixing bolt; 26. First sealing strip; 3. First protective cover; 31. Second protective cover; 32. Second sealing plate; 33. Third connecting block; 34. Fourth connecting block; 35. Second fixing bolt; 36. Second sealing strip. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1 to 3 The diagram shows a corrosion-resistant steel structure shed, comprising a steel frame 1. The steel frame 1 includes supporting columns 11, supporting beams 12, diagonal braces 13, and supporting bases 14. The two ends of the supporting beams 12 are fixedly connected to the upper ends of two sets of supporting columns 11, respectively. The two ends of the diagonal braces 13 are fixedly connected to the supporting beams 12 and supporting columns 11, respectively. The supporting bases 14 are fixedly connected to the lower ends of the supporting columns 11. The surfaces of the supporting columns 11, supporting beams 12, diagonal braces 13, and supporting bases 14 in the steel frame 1 are all coated with a primer layer 15, an intermediate layer 16, and a topcoat layer 17. The primer layer 15 is applied to the surfaces of the supporting columns 11, supporting beams 12, diagonal braces 13, and supporting bases 14, the intermediate layer 16 is applied to the outside of the primer layer 15, and the topcoat layer 17 is applied to the outside of the intermediate layer 16.

[0027] Among them, the supporting column 11 and the supporting base 14 are made of Q235B steel, and the supporting beam 12 and the diagonal brace 13 are made of Q345B steel. The bolts at the connection are 8.8 grade high-strength bolts. During the installation process, the supporting base 14 is first pre-embedded at the installation point. Then, the supporting column 11 is erected on the upper side of the supporting base 14 and connected and fixed with high-strength bolts. Next, the supporting beam 12 is connected and fixed to the supporting columns 11 at both ends with high-strength bolts. Then, the two ends of the diagonal brace 13 are connected to the supporting column 11 and the supporting beam 12 with high-strength bolts to further improve the stability and structural strength of the steel structure frame 1. The anti-corrosion layer is provided by the combination of primer layer 15, intermediate layer 16 and topcoat layer 17 to provide multi-layer protection, effectively isolating the corrosive media from the steel structure and extending the service life of the steel structure.

[0028] Meanwhile, during the anti-corrosion coating process, the primer layer 15 is first applied to the surface of the steel structure frame 1. After the primer layer 15 has cured, the intermediate layer 16 is applied to its surface. After the intermediate layer 16 has cured, the topcoat layer 17 is applied to its surface. During the coating process, the uniformity of the coating and the absence of missed areas are ensured.

[0029] See Figure 1 , Figure 4 and Figure 5 A first protective shell 2 is provided at the rear side of the connection between the supporting column 11, supporting beam 12, and diagonal brace 13. A second protective shell 21 is provided at the front side of the connection between the supporting column 11, supporting beam 12, and diagonal brace 13. A first sealing plate 22 is fixedly connected to the front edge of the surface of the first protective shell 2, and the front end of the first sealing plate 22 is stuck on the surface of the second protective shell 21. A first sealing strip 26 is fixedly connected to the interface between the first protective shell 2 and the supporting column 11 and supporting beam 12 in both the first protective shell 2 and the second protective shell 21. Multiple sets of first connecting blocks 23 are fixedly connected to the front edge of the surface of the first protective shell 2, and multiple sets of second connecting blocks 24 are fixedly connected to the rear edge of the surface of the second protective shell 21. The first connecting blocks 23 and the second connecting blocks 24 are connected to each other. A first fixing bolt 25 is connected between the support column 11 and the support base 14. A first protective cover 3 is provided on the rear side of the connection between the support column 11 and the support base 14. A second protective cover 31 is provided on the front side of the connection between the support column 11 and the support base 14. A second sealing plate 32 is fixedly connected to the front edge of the surface of the first protective cover 3. The front end of the second sealing plate 32 is stuck on the surface of the second protective cover 31. A second sealing strip 36 is fixedly connected to both the upper and lower ends of the first protective cover 3 and the second protective cover 31. Multiple sets of third connecting blocks 33 are fixedly connected to the front edge of the surface of the first protective cover 3. Multiple sets of fourth connecting blocks 34 are fixedly connected to the rear edge of the surface of the second protective cover 31. A second fixing bolt 35 is provided between the third connecting block 33 and the fourth connecting block 34.

[0030] Furthermore, due to the height of the steel structure frame, the anti-corrosion layer is usually applied to the ground before connecting the supporting columns 11, supporting beams 12, diagonal braces 13, and supporting seats 14. These components are all connected by bolts, which are prone to wear during installation and use. Corrosive media can then corrode the surface of the steel structure frame 1 through these worn areas. Therefore, by fixing the first protective shell 2 and the second protective shell 21 to the connection points of the supporting columns 11, supporting beams 12, and diagonal braces 13, and fixing the first protective cover 3 and the second protective cover 31 to the connection points of the diagonal braces 13 and supporting seats 14, the connection points of the supporting columns 11, supporting beams 12, diagonal braces 13, and supporting seats 14 are protected, preventing corrosive media from contacting the worn areas and thus avoiding corrosion.

[0031] Specifically, during installation, the first protective shell 2 and the second protective shell 21 are respectively snapped into the rear and front sides of the connection between the support column 11, the support beam 12, and the diagonal brace 13. The first fixing bolt 25 is then inserted through the through holes on the surfaces of the first connecting block 23 and the second connecting block 24 to lock and fix the first protective shell 2 and the second protective shell 21. At this time, the first sealing plate 22 seals the connection between the first protective shell 2 and the second protective shell 21, and the first sealing strip 26 seals the connection between the first protective shell 2 and the second protective shell 21 and the support column 11 and the support beam 12. Simultaneously, the first protective cover 3 and the second protective shell 21 are... The protective covers 31 are respectively clipped onto the rear and front sides of the connection between the support column 11 and the support base 14, and the second fixing bolts 35 are passed through the through holes on the surfaces of the third connecting block 33 and the fourth connecting block 34 to lock and fix the first protective cover 3 and the second protective cover 31. At this time, the second sealing plate 32 seals the connection between the first protective cover 3 and the second protective cover 31. The second sealing strip 36 at the upper end of the first protective cover 3 and the second protective cover 31 is used to seal the connection between them and the support column 11. The second sealing strip 36 at the lower end of the first protective cover 3 and the second protective cover 31 is used to seal the connection between them and the ground.

[0032] The working principle of this utility model is as follows: The surface of the steel structure frame 1 is protected by a primer layer 15, an intermediate layer 16, and a topcoat layer 17. The multi-layer anti-corrosion coating design significantly improves the corrosion resistance of the steel structure frame 1, extends its service life, and enhances its safety. At the same time, the first protective shell 2 and the second protective shell 21 work together to protect the connection between the support column 11, the support beam 12, and the diagonal brace 13. The first protective cover 3 and the second protective cover 31 work together to protect the connection between the support column 11 and the support base 14. This effectively avoids the problem of corrosive media corroding the worn areas after the anti-corrosion layer at the connection of the steel structure frame 1 is worn, further improving the service life of the steel structure frame 1.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A corrosion-resistant steel structure shed, comprising a steel structure frame (1), characterized in that: The steel frame (1) includes a support column (11), a support beam (12), a diagonal brace (13), and a support base (14). The two ends of the support beam (12) are fixedly connected to the upper ends of the two sets of support columns (11), the two ends of the diagonal brace (13) are fixedly connected to the support beam (12) and the support column (11), and the support base (14) is fixedly connected to the lower end of the support column (11). The surfaces of the support column (11), support beam (12), diagonal brace (13), and support base (14) in the steel frame (1) are all coated with a primer layer (15), an intermediate layer (16), and a topcoat layer (17).

2. The corrosion-resistant steel structure shed according to claim 1, characterized in that: The primer layer (15) is applied to the surfaces of the support column (11), support beam (12), diagonal brace (13) and support base (14), respectively. The intermediate layer (16) is applied to the outside of the primer layer (15), and the topcoat layer (17) is applied to the outside of the intermediate layer (16).

3. The corrosion-resistant steel structure shed according to claim 1, characterized in that: A first protective shell (2) is provided on the rear side of the connection between the support column (11), the support beam (12) and the diagonal brace (13), and a second protective shell (21) is provided on the front side of the connection between the support column (11), the support beam (12) and the diagonal brace (13).

4. The corrosion-resistant steel structure shed according to claim 3, characterized in that: A first sealing sheet (22) is fixedly connected to the front edge of the surface of the first protective shell (2). The front end of the first sealing sheet (22) is stuck on the surface of the second protective shell (21). A first sealing strip (26) is fixedly connected to the interface between the first protective shell (2) and the second protective shell (21) and the support column (11) and the support beam (12).

5. The corrosion-resistant steel structure shed according to claim 4, characterized in that: Multiple sets of first connecting blocks (23) are fixedly connected to the front edge of the surface of the first protective shell (2), and multiple sets of second connecting blocks (24) are fixedly connected to the rear edge of the surface of the second protective shell (21). A first fixing bolt (25) is connected between the first connecting block (23) and the second connecting block (24).

6. The corrosion-resistant steel structure shed according to claim 1, characterized in that: A first protective cover (3) is provided on the rear side of the connection between the support column (11) and the support base (14), and a second protective cover (31) is provided on the front side of the connection between the support column (11) and the support base (14).

7. The corrosion-resistant steel structure shed according to claim 6, characterized in that: A second sealing plate (32) is fixedly connected to the front edge of the surface of the first protective cover (3). The front end of the second sealing plate (32) is stuck on the surface of the second protective cover (31). The upper and lower ends of the first protective cover (3) and the second protective cover (31) are both fixedly connected to a second sealing strip (36).

8. The corrosion-resistant steel structure shed according to claim 7, characterized in that: Multiple sets of third connecting blocks (33) are fixedly connected to the front edge of the surface of the first protective cover (3), and multiple sets of fourth connecting blocks (34) are fixedly connected to the rear edge of the surface of the second protective cover (31). A second fixing bolt (35) is provided between the third connecting block (33) and the fourth connecting block (34).