Fireproof energy-saving steel structure

Abstract

The utility model relates to the technical field of energy-saving steel structures, in particular to a fire-resistant energy-saving steel structure which comprises a stand column, a center column is fixedly connected to an inner cavity of the stand column, supporting transverse plates are welded to the left side, the right side, the front side and the rear side of the center column, a protection mechanism is filled between the inner cavity of the stand column and the center column, and the protection mechanism comprises a flame-retardant layer. The stand column comprises a column body, the outer surface of the column body is coated with a fireproof coating, the outer surface of the fireproof coating is coated with a corrosion-resistant coating, the outer surface of the corrosion-resistant coating is coated with a hydrophobic coating, and an upper top plate and a lower bottom plate are welded to the top and the bottom of the stand column respectively. The fireproof coating can enable the outer surface of the column body to have good fireproof performance, fire diffusion is effectively prevented, loss is reduced, the center column can play a supporting role, the performance of the stand column is reduced, the supporting performance of the stand column can be enhanced, and using is safer and more reliable.

Description

Technical Field

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

[0002] Steel structure refers to a structural form that can bear and transfer loads and is made of steel plates and hot-rolled, cold-bent or welded profiles connected by connectors. The components or parts are usually connected by welds, bolts or rivets. It has a light weight and is simple to construct.

[0003] After searching, the announcement number is CN216007530U, and the name is an energy-saving and heat-insulating steel structure, including I-shaped steel, and a cavity is opened inside the I-shaped steel. Through research and analysis, it is found that although the compressive strength of the I-shaped steel is improved, thereby ensuring the stability of the I-shaped steel, absorbing noise and reducing the impact of noise on people, the following defects still exist to a certain extent.

[0004] For example, the fire resistance is poor. When a fire occurs, the above steel structure cannot prevent the spread of fire because it does not have fire resistance. At the same time, the load it bears is reduced, and the safety and reliability of use are deteriorated, which can easily lead to major accidents. In addition, the corrosion resistance and hydrophobicity of the steel structure surface are poor. It cannot drain rainwater quickly and is easily eroded, affecting its service life. In order to solve the above technical problems, we have designed a fire-resistant and energy-saving steel structure. Utility Model Content

[0005] The purpose of the utility model is to provide a fire-resistant and energy-saving steel structure, which has the advantages of better fire resistance, effective prevention of fire spread, greater safety and reliability, excellent corrosion resistance and hydrophobicity, and extended service life, and solves the problems of poor fire resistance, inability to prevent fire spread, deterioration of safety and reliability, poor corrosion resistance and hydrophobicity, and affected service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire-resistant and energy-saving steel structure, comprising a column, the inner cavity of the column is fixedly connected to a central column, supporting cross plates are welded to the left and right sides and the front and rear sides of the central column, a protective mechanism is filled between the inner cavity of the column and the central column, the protective mechanism comprises a flame retardant layer, the inner cavity of the flame retardant layer is fixedly connected to a heat insulation layer, the column comprises a column body, the outer surface of the column body is coated with a fire retardant coating, the outer surface of the fire retardant coating is coated with a corrosion-resistant coating, and the outer surface of the corrosion-resistant coating is coated with a hydrophobic coating.

[0007] Preferably, an upper top plate and a lower bottom plate are welded to the top and bottom of the column respectively, and positioning holes are provided at four corners of the surfaces of the upper top plate and the lower bottom plate.

[0008] Preferably, reinforcing plates are welded to the top and bottom of the column surface, and opposite sides of the upper and lower reinforcing plates are respectively welded to the upper top plate and the lower bottom plate.

[0009] Preferably, the outer side of the supporting horizontal plate is fixedly connected to the column, and through openings are provided on all four sides of the surface of the protective mechanism.

[0010] Preferably, the flame retardant layer is made of nano-silicate flame retardant cotton, and the heat insulation layer is made of rock wool felt.

[0011] Preferably, the fire retardant coating is formed by coating a non-expanding steel structure fire retardant coating, the corrosion resistant coating is formed by coating a chlorosulfonated polyethylene paint, and the hydrophobic coating is formed by coating a silicone-based hydrophobic coating.

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

[0013] The fire-retardant coating can make the outer surface of the column have good fire-retardant performance, effectively prevent the spread of fire and reduce losses. The central column can play a supporting role, and the performance of the column is reduced. The internal part can strengthen the supporting performance of the column, making it safer and more reliable to use.

[0014] The hydrophobic coating can make rainwater form a ball and flow down quickly on the surface of the steel structure. It will not adhere to the surface of the steel structure for a long time and cause erosion, thus extending the service life of the steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the structure of the utility model;

[0016] Figure 2 It is a top axonometric view of the local structure of the utility model;

[0017] Figure 3 It is a sectional isometric view of the column and the protective mechanism of the utility model;

[0018] Figure 4 It is a sectional axonometric view of the column of the utility model.

[0019] In the figure: 1. column; 2. upper top plate; 3. reinforcement plate; 4. lower bottom plate; 5. positioning hole; 6. protection mechanism; 7. center column; 8. supporting cross plate; 9. flame retardant layer; 10. thermal insulation layer; 11. column; 12. fire retardant coating; 13. corrosion resistant coating; 14. hydrophobic coating. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4A fire-resistant energy-saving steel structure comprises a column 1, the inner cavity of the column 1 is fixedly connected with a central column 7, the left and right sides and the front and rear sides of the central column 7 are welded with supporting cross plates 8, a protective mechanism 6 is filled between the inner cavity of the column 1 and the central column 7, the protective mechanism 6 comprises a flame retardant layer 9, the inner cavity of the flame retardant layer 9 is fixedly connected with a heat insulation layer 10, the column 1 comprises a column body 11, the outer surface of the column body 11 is coated with a fire retardant coating 12, the outer surface of the fire retardant coating 12 is coated with a corrosion resistant coating 13, and the outer surface of the corrosion resistant coating 13 is coated with a hydrophobic coating 14;

[0021] See also Figure 1 The top and bottom of the column 1 are respectively welded with an upper top plate 2 and a lower bottom plate 4. By setting the upper top plate 2 and the lower bottom plate 4, it is convenient to fix the external structure with the column 1. The four corners of the surface of the upper top plate 2 and the lower bottom plate 4 are provided with positioning holes 5. By setting the positioning holes 5, it is convenient to pass the bolts through for installation and fixing;

[0022] See also Figure 1 The top and bottom of the column 1 are welded with reinforcing plates 3, and the opposite sides of the upper and lower reinforcing plates 3 are welded to the upper top plate 2 and the lower bottom plate 4 respectively;

[0023] See also Figure 3 The outer side of the supporting horizontal plate 8 is fixedly connected to the column 1, and through openings are provided around the surface of the protective mechanism 6. By setting the supporting horizontal plate 8, it is convenient for the supporting horizontal plate 8 to pass through the protective mechanism 6;

[0024] See also Figure 3 The flame retardant layer 9 is made of nano-silicate flame retardant cotton. By setting the flame retardant layer 9, the spread of external fire can be effectively prevented. The heat insulation layer 10 is made of rock wool felt. By setting the heat insulation layer 10, the external high temperature can be effectively prevented from being transmitted to the central column 7, thereby preventing the central column 7 from deteriorating in performance due to high temperature.

[0025] See also Figure 4 The fireproof coating 12 is formed by coating a non-expanding steel structure fireproof coating, the corrosion-resistant coating 13 is formed by coating a chlorosulfonated polyethylene paint, and the hydrophobic coating 14 is formed by coating a silicone-based hydrophobic coating.

[0026] When in use, a fire-retardant coating 12 is coated on the outer surface of the column 1, which can make the outer surface of the column 11 have good fire-retardant performance, effectively prevent the spread of fire and reduce losses. At the same time, a central column 7 is fixedly connected to the inner cavity of the column 1, and the central column 7 can play a supporting role. When the column 1 is roasted in a fire for a long time, the performance will decline. At this time, the internal central column 7 can enhance the supporting performance of the column 1, and the use is safer and more reliable. A corrosion-resistant coating 13 and a hydrophobic coating 14 are provided on the outer surface of the column 1. The hydrophobic coating 14 can make rainwater form a spherical shape and flow down quickly on the surface of the steel structure. It will not adhere to the surface of the steel structure for a long time to cause erosion, thereby extending the service life of the steel structure.

[0027] To sum up: this fire-resistant and energy-saving steel structure, through the coordinated use of the protective mechanism 6, the central column 7, the supporting cross plate 8, the column 11, the fire-resistant coating 12, the corrosion-resistant coating 13 and the hydrophobic coating 14, solves the problems of poor fire resistance, inability to prevent the spread of fire, poor safety and reliability, poor corrosion resistance and hydrophobic performance, and affected service life.

Claims

1. A fire-resistant energy-saving steel structure, comprising a column (1), characterized in that: The inner cavity of the column (1) is fixedly connected to a central column (7), and supporting cross plates (8) are welded to the left and right sides and the front and rear sides of the central column (7). A protective mechanism (6) is filled between the inner cavity of the column (1) and the central column (7), and the protective mechanism (6) comprises a flame retardant layer (9). The inner cavity of the flame retardant layer (9) is fixedly connected to a heat insulation layer (10). The column (1) comprises a column body (11), and the outer surface of the column body (11) is coated with a fire retardant coating (12), the outer surface of the fire retardant coating (12) is coated with a corrosion resistant coating (13), and the outer surface of the corrosion resistant coating (13) is coated with a hydrophobic coating (14).

2. A fire-resistant energy-saving steel structure according to claim 1, characterized in that: An upper top plate (2) and a lower bottom plate (4) are respectively welded to the top and bottom of the column (1), and positioning holes (5) are provided at four corners of the surfaces of the upper top plate (2) and the lower bottom plate (4).

3. A fire-resistant energy-saving steel structure according to claim 2, characterized in that: Reinforcement plates (3) are welded to the top and bottom of the surface of the column (1), and opposite sides of the upper and lower reinforcement plates (3) are respectively welded to the upper top plate (2) and the lower bottom plate (4).

4. The fire-resistant energy-saving steel structure according to claim 1, characterized in that: The outer side of the supporting horizontal plate (8) is fixedly connected to the upright column (1), and the surface of the protective mechanism (6) is provided with through openings on all four sides.

5. The fire-resistant energy-saving steel structure according to claim 1, characterized in that: The flame retardant layer (9) is made of nano-silicate flame retardant cotton, and the heat insulation layer (10) is made of rock wool felt.

6. The fire-resistant energy-saving steel structure according to claim 1, characterized in that: The fireproof coating (12) is formed by coating a non-expanding steel structure fireproof coating, the corrosion-resistant coating (13) is formed by coating a chlorosulfonated polyethylene paint, and the hydrophobic coating (14) is formed by coating a siloxane-based hydrophobic coating.

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