Carbon fiber patch for reinforcing steel structure

By setting a multi-layer structure on the carbon fiber patch body, including an adhesive layer, a waterproof coating, a wear-resistant layer, and a fireproof layer, the problem of poor reinforcement effect of existing carbon fiber patches is solved, and stronger reinforcement effect and durability are achieved, making it suitable for steel structure reinforcement in complex environments.

CN223707202UActive Publication Date: 2025-12-23CHANGSHA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent Information

Application Number
CN202423215684.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-12-23
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing carbon fiber patch reinforcement for steel structures has limited effectiveness, insufficient durability and fire resistance, and limited applicability, affecting service life and safety.

Method used

An adhesive layer, a waterproof coating, a wear-resistant layer, and a fireproof layer are applied to the carbon fiber patch body. Epoxy resin and intumescent fire-retardant coatings are used to form a multi-layer structure to enhance the reinforcement effect and durability.

Benefits of technology

It improves the reinforcement effect and durability of carbon fiber patches, making them suitable for various complex environments, enhancing the safety and stability of steel structures, and extending their service life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of steel structure reinforcement, and discloses a carbon fiber patch for steel structure reinforcement, which comprises a carbon fiber patch body, the surface of the carbon fiber patch body is coated with an adhesive layer, the surface of the rear end of the carbon fiber patch body is fixedly provided with a waterproof coating, the surface of the waterproof coating is fixedly provided with a wear-resistant layer, and the surface of the wear-resistant layer is coated with an adhesive layer. And a fireproof layer is fixed on the surface of the wear-resistant layer. According to the carbon fiber patch for reinforcing the steel structure, the adhesive layer, the waterproof coating, the wear-resistant layer and the fireproof layer are arranged on the carbon fiber patch body, so that the reinforcing effect of the carbon fiber patch body is higher, and the durability and the fireproof performance are higher; the carbon fiber patch can meet the steel structure reinforcing requirements under various complex environments and conditions, the application range is wide, more reliable guarantee can be provided for the safety and stability of the steel structure, and the service life of the carbon fiber patch body is prolonged.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure reinforcing technical field especially relates to a carbon fiber patch for steel structure reinforcing. BACKGROUND

[0002] Steel structure is a kind of structure system commonly used in current building field, is widely used in large-scale building, bridge, petrochemical etc., however, due to long-term use and environmental influence, steel structure can appear rust, bending, deformation etc., cause structural safety hidden danger, influence service life, therefore, need to use a kind of carbon fiber patch for steel structure reinforcing.

[0003] Traditional carbon fiber patch for steel structure reinforcing, although it can improve the carrying capacity and stability of steel structure to some extent, but in the actual application process, its reinforcing effect is often relatively limited, and there is the problem of insufficient durability and fire resistance, and it cannot be applied to the steel structure demand under various complex environments and conditions, thereby leading to the reduction of the application range of carbon fiber patch, affecting reinforcing effect and service life. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that there is a carbon fiber patch for steel structure reinforcing in the prior art, the reinforcing effect is limited, the durability and fire resistance are insufficient, the application range is limited, and the reinforcing effect and service life are affected, and therefore a carbon fiber patch for steel structure reinforcing is provided.

[0005] In order to achieve the above purpose, the following technical scheme is adopted in the present application: a carbon fiber patch for steel structure reinforcing, comprising a carbon fiber patch body, the surface of the carbon fiber patch body is coated with an adhesive layer, the surface of the rear end of the carbon fiber patch body is fixed with a waterproof coating, the surface of the waterproof coating is fixed with a wear-resistant layer, and the surface of the wear-resistant layer is fixed with a fireproof layer.

[0006] Preferably, the carbon fiber patch body is composed of a carbon fiber heating body and an additional layer, and the carbon fiber heating body and the carbon fiber patch body form a double-layer carbon fiber patch.

[0007] Preferably, the material of the waterproof coating is epoxy resin material.

[0008] Preferably, the wear-resistant layer is composed of transverse plastic and longitudinal plastic, and the transverse plastic and the longitudinal plastic are arranged in a mixed manner.

[0009] Preferably, the mixed arrangement between the transverse plastic and the longitudinal plastic is forty-five degree cross arrangement.

[0010] Preferably, the material of the fireproof layer is intumescent fire retardant coating.

[0011] The technical effects and advantages of the present application are as follows:

[0012] In the present application, the adhesive layer, waterproof coating, wear-resistant layer and fireproof layer are arranged on the carbon fiber patch body, so that the reinforcing effect of the carbon fiber patch body is stronger, the durability and fireproof performance are higher, and the multi-layer structure of the carbon fiber patch reinforcing method can be applied to the reinforcing requirements of steel structures under various complex environments and conditions, has a wide application range, can provide more reliable protection for the safety and stability of the steel structure, and prolongs the service life of the carbon fiber patch body. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a front view structural schematic diagram of the present application;

[0014] Figure 2 It is a carbon fiber patch body structure schematic diagram of the present application;

[0015] Figure 3 It is a wear-resistant layer structure schematic diagram of the present application.

[0016] Legend: 1, carbon fiber patch body; 2, adhesive layer; 3, waterproof coating; 4, wear-resistant layer; 5, fireproof layer; 101, carbon fiber heating body; 102, additional layer; 401, horizontal plastic; 402, vertical plastic. DETAILED DESCRIPTION

[0017] The present application will be further described in detail in combination with the drawings and preferred embodiments. These drawings are all simplified schematic diagrams, and only illustrate the basic structure of the present application in a schematic manner, so that only the components related to the present application are shown.

[0018] Referring to Figures 1-3 The present application provides a technical solution: a carbon fiber patch for reinforcing steel structure, comprising a carbon fiber patch body 1, the surface of the carbon fiber patch body 1 is coated with an adhesive layer 2, the surface of the rear end of the carbon fiber patch body 1 is fixed with a waterproof coating 3, the surface of the waterproof coating 3 is fixed with a wear-resistant layer 4, and the surface of the wear-resistant layer 4 is fixed with a fireproof layer 5. By arranging the adhesive layer 2, waterproof coating 3, wear-resistant layer 4 and fireproof layer 5 on the carbon fiber patch body 1, the reinforcing effect of the carbon fiber patch body 1 is stronger, the durability and fireproof performance are higher, and the multi-layer structure of the carbon fiber patch reinforcing method can be applied to the reinforcing requirements of steel structures under various complex environments and conditions, has a wide application range, and can provide more reliable protection for the safety and stability of the steel structure.

[0019] Referring to Figure 2As shown in this embodiment, the carbon fiber patch body 1 is composed of a carbon fiber heating element 101 and an additional layer 102. The additional layer 102 and the carbon fiber patch body 1 form a double-layer carbon fiber patch. By setting the additional layer 102, a double-layer carbon fiber patch is formed between the additional layer 102 and the carbon fiber patch body 1, thereby further enhancing the strength and stiffness of the steel structure, improving the overall stability of the structure, and the double-layer reinforcement has a wide range of applications, stable strength improvement, and can cope with more complex load and stress conditions. The carbon fiber heating element 101 is the core component of the carbon fiber patch body 1, and has good electrical conductivity and strong tensile strength.

[0020] Reference Figure 1 As shown in this embodiment: the waterproof coating 3 is made of epoxy resin. By using epoxy resin for the waterproof coating 3, its good waterproof performance and corrosion resistance can protect the carbon fiber patch and steel structure from moisture and corrosion.

[0021] Reference Figure 3 As shown in this embodiment, the wear-resistant layer 4 is composed of transverse plastic 401 and longitudinal plastic 402. The transverse plastic 401 and longitudinal plastic 402 are arranged in a mixed manner, and the mixed arrangement of the transverse plastic 401 and longitudinal plastic 402 is a 45-degree cross arrangement. By setting the arrangement of the heat-resistant material on the surface of the wear-resistant layer 4 to a 45-degree cross arrangement, the material in the wear-resistant layer 4 can more evenly distribute stress when subjected to wear, avoiding excessive wear in one direction, reducing overall failure caused by local excessive wear, thereby extending the service life of the wear-resistant layer 4. Furthermore, the cross-arranged wear-resistant layer 4 can provide better resistance when subjected to shear force.

[0022] Reference Figure 1 As shown in this implementation plan: the fireproof layer 5 is made of intumescent fireproof coating. By using intumescent fireproof coating as the material of fireproof layer 5, better fireproof performance can be achieved in the carbon fiber patch for steel structure reinforcement. Moreover, it can quickly undergo a chemical reaction at high temperature to form a dense carbonized protective layer. This protective layer can not only effectively isolate heat transfer and slow down the spread of fire, but also prevent the flame from directly eroding the steel structure to a certain extent. It also has good environmental protection performance and will not cause pollution to the environment.

[0023] Working principle: By applying an adhesive layer 2, a waterproof coating 3, a wear-resistant layer 4, and a fireproof layer 5 to the carbon fiber patch body 1, the user greatly enhances the reinforcement effect of the carbon fiber patch body 1, significantly improving its durability and fire resistance. This multi-layered carbon fiber patch reinforcement method not only ensures a strong bond between the carbon fiber patch and the steel structure, but also provides comprehensive protection for the steel structure through layer-by-layer protection. By adding an additional layer 102, a double-layer carbon fiber patch is formed between the additional layer 102 and the carbon fiber patch body 1, thereby further enhancing the strength and stiffness of the steel structure, improving the overall stability of the structure, and the double layer... The reinforcement process has a wide range of applications, provides stable strength enhancement, and can cope with more complex loads and stress conditions. The carbon fiber heating element 101 is the core component of the carbon fiber patch body 1, possessing excellent electrical conductivity and strong tensile strength. The adhesive layer 2, acting as a bridge between the carbon fiber patch and the steel structure, utilizes a high-performance epoxy resin adhesive to ensure a tight bond and strong adhesion between the two. This adhesive not only has excellent weather resistance and chemical stability but also maintains its bonding performance in extreme environments, thus ensuring the durability of the carbon fiber patch reinforcement effect. The waterproof coating 3 effectively prevents moisture from penetrating the carbon fiber patch and the steel structure. To prevent corrosion, advanced waterproof materials and technologies are used. Waterproof coating 3 forms a dense waterproof barrier, preventing water penetration and protecting the carbon fiber patch and steel structure from corrosion and rust. The addition of wear-resistant layer 4 further enhances the durability of the carbon fiber patch. This layer uses high-hardness wear-resistant materials to resist various mechanical wear and scratches, extending the service life of the carbon fiber patch. Simultaneously, wear-resistant layer 4 can also reduce damage to the steel structure from external impacts to a certain extent, improving the overall structural stability. Fireproof layer 5, using high-performance fireproof materials such as intumescent fire-retardant coatings, can rapidly form a protective layer at high temperatures. Effectively insulates heat transfer, slows the spread of fire, and provides valuable fire protection time for steel structures. This improved fire resistance makes the carbon fiber patch reinforcement method more suitable for steel structure reinforcement needs in various complex environments and conditions. By arranging the heat-resistant material on the surface of the wear-resistant layer 4 in a 45-degree cross pattern, the material in the wear-resistant layer 4 can more evenly distribute stress when subjected to wear, avoiding excessive wear in one direction and reducing overall failure caused by localized excessive wear, thereby extending the service life of the wear-resistant layer 4. Furthermore, the cross-arranged wear-resistant layer 4 can provide better resistance when subjected to shear force.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A carbon fiber patch for steel structure reinforcement, comprising a carbon fiber patch body (1), characterized in that: The surface of the carbon fiber patch body (1) is covered with an adhesive layer (2), a waterproof coating (3) is fixed to the rear end surface of the carbon fiber patch body (1), a wear-resistant layer (4) is fixed to the surface of the waterproof coating (3), and a fireproof layer (5) is fixed to the surface of the wear-resistant layer (4).

2. The carbon fiber patch for steel structure reinforcement according to claim 1, characterized in that: The carbon fiber patch body (1) is composed of a carbon fiber heating element (101) and an additional layer (102), and the carbon fiber heating element (101) and the carbon fiber patch body (1) form a double-layer carbon fiber patch.

3. The carbon fiber patch for steel structure reinforcement according to claim 1, characterized in that: The waterproof coating (3) is made of epoxy resin.

4. A carbon fiber patch for steel structure reinforcement according to claim 1, characterized in that: The wear-resistant layer (4) comprises transverse plastic (401) and longitudinal plastic (402), which are arranged in a mixed manner.

5. A carbon fiber patch for steel structure reinforcement according to claim 4, characterized in that: The transverse plastic (401) and longitudinal plastic (402) are arranged in a 45-degree cross arrangement.

6. A carbon fiber patch for steel structure reinforcement according to claim 1, characterized in that: The fireproof layer (5) is made of intumescent fireproof coating.