A high-strength carbon fiber composite column
By combining rectangular steel tubes and carbon fiber cloth in the curtain wall columns, the problems of high cost and complex process in the existing technology have been solved, realizing high-strength and lightweight carbon fiber composite columns, simplifying the production process and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI HENGSHANG DECORATION ENG CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing carbon fiber composite steel pipes used in curtain wall columns suffer from high cost, complex production processes, and heavy weight, especially when applied in large-space environments.
The design combines rectangular steel tubes with carbon fiber cloth. Continuous carbon fiber cloth is adhered to a pair of opposite sides of the column body, and ring-shaped carbon fiber cloth is adhered at equal intervals along the axial direction on the outside. The outer layer is coated with a fluorocarbon coating, which simplifies the production process and saves costs.
This has resulted in a lightweight, aesthetically pleasing, high-strength, and highly resistant composite column, simplifying the production process and reducing production costs.
Smart Images
Figure CN224578917U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curtain wall column technology, and in particular to a high-strength carbon fiber composite column. Background Technology
[0002] Curtain wall mullions are key vertical components in curtain wall structures, playing a crucial role in supporting the curtain wall panels and transferring loads. The design of mullions typically needs to consider requirements such as load-bearing capacity, deflection, and connection strength to ensure good structural performance under conditions such as wind loads and seismic action. Furthermore, the application of single mullions in large-space environments often presents challenges such as large dimensions and heavy components.
[0003] A patent with publication number CN201021738Y, entitled "A Carbon Fiber Resin Composite Steel Pipe," discloses a composite steel pipe in which unidirectional carbon fiber cloth is repeatedly wound and adhered to the pipe in a ring shape while the pipe surface is coated with epoxy vinyl ester resin, forming a carbon fiber resin structure. This utilizes the advantages of high strength and light weight of carbon fiber cloth, aiming to strengthen the pipe while minimizing the overall weight of the composite steel pipe. However, carbon fiber cloth is expensive, and this composite steel pipe structure consumes a large amount of carbon fiber cloth, increasing the cost of pipe use. Furthermore, to enhance the winding effect of the carbon fiber cloth, specialized mechanical clamping equipment and a relatively complex and cumbersome winding process are required. Utility Model Content
[0004] To address the problems existing in the prior art, this utility model provides a high-strength carbon fiber composite column, which combines carbon fiber cloth with steel rectangular tubes, resulting in a lightweight, aesthetically pleasing structure with strong bending resistance.
[0005] To achieve the above objectives, the technical solution of this utility model is as follows:
[0006] A high-strength carbon fiber composite column includes a column body with a rectangular cross-section. A first carbon fiber cloth is adhered to at least a pair of opposite side surfaces of the column body. The first carbon fiber cloth is a continuous structure extending along the axial direction of the column body. The front and rear ends of the first carbon fiber cloth in the extension direction are respectively attached to the two side edges of the side surfaces. A plurality of second carbon fiber cloths are adhered at equal intervals along the axial direction to the outside of the column body. Each second carbon fiber cloth is a ring structure arranged along the circumference of the column body. The second carbon fiber cloths are located on the outer layer of the first carbon fiber cloths.
[0007] Preferably, the column body is made of steel rectangular tubing.
[0008] Preferably, the exterior of the first carbon fiber cloth and the second carbon fiber cloth is provided with a fluorocarbon coating.
[0009] Preferably, the first carbon fiber cloth is adhered to the surface of the column body by a carbon fiber primer, and the first carbon fiber cloth is coated with carbon fiber impregnation adhesive; the second carbon fiber cloth is adhered to the surface of the column body and the first carbon fiber cloth by a carbon fiber primer.
[0010] Preferably, the width of the first carbon fiber cloth is determined according to the surface flatness of the column body.
[0011] Preferably, mounting holes are provided on the column body, and the mounting holes are located on the surface of the column body in areas where carbon fiber cloth is not adhered.
[0012] Compared with the prior art, the beneficial technical effects of this utility model are as follows:
[0013] This invention involves attaching continuous carbon fiber cloth to a pair of opposite sides of the column body and attaching multiple annular carbon fiber cloths at equal intervals along the axial direction to the outside of the column body. This results in a composite column that is lightweight, aesthetically pleasing, high-strength, and has strong bending resistance. Furthermore, it simplifies the production process of the composite column and saves production costs. Attached Figure Description
[0014] Figure 1 A schematic diagram of the structure of the high-strength carbon fiber composite column according to an embodiment of the present invention is shown.
[0015] Figure 2 The process flow diagram for manufacturing high-strength carbon fiber composite columns is shown.
[0016] Marked in the attached diagram:
[0017] 1. Column body; 2. First carbon fiber cloth; 3. Second carbon fiber cloth. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the device proposed by this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer according to the following description. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions, only used to conveniently and clearly assist in illustrating the purpose of the embodiments of this utility model. Please refer to the accompanying drawings to make the objectives, features, and advantages of this utility model more apparent and understandable. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only used to complement the content disclosed in the specification, for those skilled in the art to understand and read, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.
[0019] Example
[0020] like Figure 1 As shown, this embodiment proposes a high-strength carbon fiber composite column, including a column body 1 with a rectangular cross-section. A first carbon fiber cloth 2 is adhered to the two side walls of the column body 1. The first carbon fiber cloth 2 is a continuous structure extending along the axial direction of the column body. The first carbon fiber cloth 2 is adhered to the side surface of the column body 1 using carbon fiber adhesive. The carbon fiber cloth has good load-bearing and stress-bearing effects in a continuous direction. Several second carbon fiber cloths 3 are evenly and intermittently adhered to the exterior of the column body 1 along the axial direction. The second carbon fiber cloths 3 have a ring-shaped structure and are adhered to the surfaces of the column body 1 using carbon fiber adhesive. The intermittent arrangement of the second carbon fiber cloths 3 can simultaneously improve the strength of the column body 1 and reduce costs.
[0021] Figure 2 An example of a high-strength carbon fiber composite column with this structural design is shown. The column body 1 uses a 150mm*300mm*12m steel rectangular tube. The first carbon fiber cloth 2 and the second carbon fiber cloth 3 are both 100mm wide strips of carbon fiber cloth. The distance from the upper and lower edges of the first carbon fiber cloth 2 to its side surface is equal, and its ends are attached to the edges of the side surface. The centerline spacing between adjacent second carbon fiber cloths 3 is 300mm. This example of a composite column is reinforced by an outer layer of 100mm wide carbon fiber cloth, enabling the fabrication of large-span columns. The carbon fiber cloth has a tensile strength exceeding 3000MPa, an elastic modulus exceeding 200Gpa, and an elongation exceeding 1.5%, achieving the technical objectives of being lightweight and aesthetically pleasing, high-strength, having good bending resistance, and reducing weight. In practical applications, the width of the first carbon fiber cloth 2 depends on the flatness of the steel rectangular tube surface.
[0022] The manufacturing method of the high-strength carbon fiber composite column in this example is as follows: Figure 2 As shown, the process includes the following steps:
[0023] Step 1: Clean the surface of the column body 1, remove rust, oil stains and burrs, and grind it smooth with an angle grinder.
[0024] Step 2: Apply carbon fiber primer to the surface of the 150mm side of the column body 1. Adhere the 100mm wide first carbon fiber cloth 2 to the surface of the column body 1. Apply carbon fiber impregnation adhesive evenly along the length of the first carbon fiber cloth 2 until it is fully saturated and smoothed. Repeat the same process on the other 150mm side to obtain a steel rectangular tube with the first carbon fiber cloth 2 on both sides.
[0025] Step 3: Apply carbon fiber primer to the circumferential surface of the column body 1 at axial intervals of 300mm, and then adhere a 100mm wide second carbon fiber cloth 3 to the surface of the steel rectangular tube.
[0026] Step 4: After all curing is completed, install holes are processed according to actual needs, avoiding the carbon fiber cloth on the surface of the column body 1.
[0027] Step 5: After processing is completed, the outer surface of the entire tube of column body 1 is coated with paint putty, sanded smooth, and then fluorocarbon spraying is applied to make the composite column more aesthetically pleasing.
[0028] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0029] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A high-strength carbon fiber composite post, characterized by: The column body (1) has a rectangular cross section. A first carbon fiber cloth (2) is adhered to at least a pair of opposite side surfaces of the column body (1). The first carbon fiber cloth (2) is a continuous structure extending along the axial direction of the column body (1). The front and rear ends of the first carbon fiber cloth (2) are respectively attached to the two side edges of the side surface. Several second carbon fiber cloths (3) are adhered to the outside of the column body (1) at equal intervals along the axial direction. Each second carbon fiber cloth (3) is a ring structure arranged along the circumference of the column body (1). The second carbon fiber cloth (3) is located on the outer layer of the first carbon fiber cloth (2).
2. The high strength carbon fiber composite post of claim 1, wherein: The column body (1) is made of steel rectangular tube.
3. The high strength carbon fiber composite post of claim 1, wherein: The first carbon fiber cloth (2) and the second carbon fiber cloth (3) are provided with a fluorocarbon coating on their exterior.
4. The high strength carbon fiber composite post of claim 1, wherein: The first carbon fiber cloth (2) is adhered to the surface of the column body (1) by carbon fiber base adhesive, and the first carbon fiber cloth (2) is coated with carbon fiber impregnation adhesive; the second carbon fiber cloth (3) is adhered to the surface of the column body (1) and the first carbon fiber cloth (2) by carbon fiber base adhesive.
5. The high strength carbon fiber composite post of claim 1, wherein: The width of the first carbon fiber cloth (2) is determined according to the surface flatness of the column body (1).
6. The high strength carbon fiber composite post of claim 1, wherein: The column body (1) has mounting holes, which are located on the surface of the column body (1) in areas where carbon fiber cloth is not adhered.