Reinforced beam-column joint enclosure structure made of fiber reinforced composite material

Abstract

The utility model belongs to the technical field of beam-column joint reinforcement, and particularly relates to a reinforced beam-column joint enclosure structure adopting a fiber reinforced composite material, which comprises a beam-column body, an enclosure assembly is arranged on the beam-column body, and the enclosure assembly comprises two first reinforcing plates and two first L-shaped reinforcing plates which are arranged on the beam-column body; the two first reinforcing plates and the two first L-shaped reinforcing plates are hinged to each other, the two first reinforcing plates and the two first L-shaped reinforcing plates form a quadrilateral protection plate for protecting the beam column body, and fiber reinforced composite layers are arranged on the sides, close to the beam column body, of the two first reinforcing plates and the two first L-shaped reinforcing plates; the two first reinforcing plates protect the side edge of the beam column body. According to the device, the reinforcing plate and the fiber reinforced composite layer are combined to enclose the beam-column joint, and higher strength, rigidity and durability, better adaptability and environmental protection performance, lower maintenance cost and higher construction speed can be provided.

Description

Technical Field

[0001] The utility model belongs to the technical field of beam-column joint reinforcement, and specifically relates to a reinforced beam-column joint enclosure structure using a fiber-reinforced composite material. Background Art

[0002] In construction projects, beam-column joints are important load-bearing structural parts, and their reinforcement quality directly affects the overall stability and safety of the building.

[0003] The existing beam-column joints generally include a node position (that is, a 90° position) and a side position. When reinforcement is performed, it is generally reinforced by a reinforcing steel plate to improve the reinforcement effect.

[0004] However, when steel plates are used for reinforcement, due to the complexity of the beam-column node structure, the bonding strength between the steel plates and the original structure is insufficient, and steel plate reinforcement is prone to cause stress concentration, making it difficult to ensure construction quality.

[0005] At the same time, the existing technology also uses carbon fiber cloth for reinforcement, because the characteristics of carbon fiber cloth can provide its light weight, corrosion resistance and high tensile strength, so that it has an excellent reinforcement effect.

[0006] However, when using carbon fiber cloth for reinforcement, at the beam-column joint, due to the complexity of the original structure, the flatness and cleanliness of the concrete surface may affect the bonding effect. If the bonding layer is too thin or uneven, it may cause gaps or peeling between the carbon fiber and the concrete, thus affecting the reinforcement effect. At the beam-column joint, the stress situation is relatively complicated, and the carbon fiber cloth needs to withstand a variety of stresses, including tension, shear force and bending moment. Due to the characteristics of carbon fiber cloth, its stress performance in different directions is different, and it is easy to have uneven stress. This may cause the carbon fiber cloth to be overstressed in some directions and understressed in other directions, thus affecting the reinforcement effect. The reinforcement construction of the beam-column joint is relatively complicated, and the carbon fiber cloth needs to be precisely positioned and fixed. In actual construction, due to the possible differences in the shape and size of the node, the cutting and fixing of the carbon fiber cloth is more difficult. In addition, factors such as humidity and temperature during the construction process may also affect the bonding performance and reinforcement effect of the carbon fiber cloth.

[0007] To this end, we proposed a reinforced beam-column node enclosure structure using fiber-reinforced composite materials. The beam-column nodes are enclosed by a combination of reinforced plates and fiber-reinforced composite layers, which can provide higher strength, stiffness and durability, better adaptability and environmental protection, as well as lower maintenance costs and faster construction speed. Utility Model Content

[0008] The purpose of this utility model is to provide a reinforced beam-column node enclosure structure using fiber reinforced composite materials, which uses a combination of a reinforcement plate and a fiber reinforced composite layer to enclose the beam-column node, and can provide higher strength, stiffness and durability, better adaptability and environmental protection, as well as lower maintenance costs and faster construction speed.

[0009] The technical solutions adopted in this utility are as follows:

[0010] A reinforced beam-column node enclosure structure using fiber-reinforced composite materials, comprising a beam-column body, on which an enclosure component is arranged;

[0011] The enclosure component includes two first reinforcement plates and two first L-shaped reinforcement plates arranged on the beam-column body, the two first reinforcement plates and the two first L-shaped reinforcement plates are hingedly connected to each other, the two first reinforcement plates and the two first L-shaped reinforcement plates form a quadrilateral protection plate for protecting the beam-column body, the two first reinforcement plates and the two first L-shaped reinforcement plates are provided with a fiber-reinforced composite layer on one side close to the beam-column body, the two first reinforcement plates protect the side edges of the beam-column body, the two first L-shaped reinforcement plates protect the nodes of the beam-column body, the two first reinforcement plates are provided with a first adjustment component for adjusting the length, and the two first L-shaped reinforcement plates are provided with a second adjustment component for adjusting the length.

[0012] Furthermore, the first reinforcement plate is composed of a first connecting plate and a second connecting plate, and the first L-shaped reinforcement plate is composed of a first L-shaped connecting plate and a second L-shaped connecting plate.

[0013] Furthermore, the first adjustment component includes a first connecting rod fixedly connected to the first connecting plate and a first connecting groove and a first fixing hole provided on the second connecting plate, the first fixing hole is connected to the first connecting groove, a plurality of second fixing holes are provided on the first connecting rod, and the first connecting rod is inserted into the first connecting groove, and the first fixing hole and the second fixing hole are inserted with the first fixing rod.

[0014] Furthermore, the second adjustment component includes a second connecting rod fixedly connected to the first L-shaped connecting plate and a second connecting groove and a third fixing hole provided on the second L-shaped connecting plate, the third fixing hole is connected to the second connecting groove, a plurality of fourth fixing holes are provided on the second connecting rod, and the second connecting rod is inserted into the second connecting groove, and the second fixing rod is inserted into the third fixing hole and the fourth fixing hole.

[0015] Furthermore, the first connecting rod matches the first connecting groove.

[0016] Furthermore, an inclined reinforcement rod is arranged on the outer side of the first L-shaped reinforcement plate.

[0017] The technical effects achieved by this utility model are:

[0018] The lengths of the two first reinforcement plates and the two first L-shaped reinforcement plates are adjusted respectively by the first adjustment component and the second adjustment component to match the beam-column body, an adhesive colloid is applied to the beam-column body, and then the fiber-reinforced composite layer on the inner wall of the quadrilateral protective plate formed by the two first reinforcement plates and the two first L-shaped reinforcement plates is bonded to the beam-column body for connection, thereby providing enclosure. The combination of reinforcement plates and fiber-reinforced composite layers for enclosing beam-column nodes can provide higher strength, stiffness and durability, better adaptability and environmental protection, as well as lower maintenance costs and faster construction speeds. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a front view of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the first reinforcement plate and the first L-shaped reinforcement plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the first adjustment component of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the second adjustment component of the utility model;

[0024] Figure 6 It is a structural schematic diagram of the first reinforcement plate and the first L-shaped reinforcement plate of the utility model when they are spread out.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 1. Beam-column body; 2. First reinforcement plate; 3. First L-shaped reinforcement plate; 4. Fiber reinforced composite layer; 5. First connecting plate; 6. Second connecting plate; 7. First L-shaped connecting plate; 8. Second L-shaped connecting plate; 9. First connecting rod; 11. First fixing hole; 12. First fixing rod; 13. Second connecting rod; 15. Third fixing hole; 16. Second fixing rod; 17. Reinforcement rod. DETAILED DESCRIPTION

[0027] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with the embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the present invention, and does not strictly limit the scope of protection specifically requested by the present invention.

[0028] like Figure 1-6 As shown, the technical solution adopted by the present invention is as follows: a reinforced beam-column node enclosure structure using fiber-reinforced composite materials, comprising a beam-column body 1, on which an enclosure component is arranged;

[0029] The enclosure component includes two first reinforcement plates 2 and two first L-shaped reinforcement plates 3 arranged on the beam-column body 1, the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 are hingedly connected to each other, the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 form a quadrilateral protection plate for protecting the beam-column body 1, the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 are provided with a fiber reinforced composite layer 4 on one side close to the beam-column body 1, the two first reinforcement plates 2 protect the side of the beam-column body 1, the two first L-shaped reinforcement plates 3 protect the nodes of the beam-column body 1, the two first reinforcement plates 2 are provided with a first adjustment component for adjusting the length, and the two first L-shaped reinforcement plates 3 are provided with a second adjustment component for adjusting the length.

[0030] The above working principle is: first, people adjust the lengths of the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 respectively through the first adjustment component and the second adjustment component to make them match the beam-column body 1, apply adhesive colloid on the beam-column body 1, and then make the fiber-reinforced composite layer 4 on the inner wall of the quadrilateral protective plate formed by the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 bonded to the beam-column body 1 for connection, thereby providing enclosure.

[0031] In the prior art, the beam-column joint reinforcement method mainly uses reinforcement plates or carbon fiber cloth for reinforcement. When reinforcement plates are used for reinforcement, due to the complexity of the beam-column joint structure, the reinforcement effect of the reinforcement plates is often not ideal. The main reasons are as follows:

[0032] 1. Insufficient bonding between the reinforcement plate and the original structure: Due to the weak bonding between the original concrete structure and the reinforcement plate at the beam-column joint, the reinforcement effect of the reinforcement plate cannot be fully exerted. Under stress, the reinforcement plate is prone to detach from the original concrete, affecting the reinforcement effect.

[0033] 2. Reinforcement with reinforcement plates can easily cause stress concentration: At the beam-column nodes, due to the original structural defects and damage, reinforcement with reinforcement plates may cause stress concentration, making the stress at the nodes more unfavorable and easily causing crack expansion and structural damage.

[0034] 3. It is difficult to ensure the construction quality of reinforcement with reinforcement plates: The reinforcement construction of beam-column joints is relatively complicated and requires high construction accuracy. However, the construction quality of the processing and installation of reinforcement plates is difficult to ensure, and errors are prone to occur, affecting the reinforcement effect.

[0035] In terms of stress analysis, the traditional reinforcement method of reinforcement plate mainly relies on the strength and stiffness of the reinforcement plate to improve the bearing capacity of the beam-column node. However, due to the above reasons, the stress performance of the reinforcement plate cannot be fully utilized and the reinforcement effect is not ideal.

[0036] The traditional reinforcement method of beam-column joints mainly uses carbon fiber cloth, but the reasons why the reinforcement effect is not ideal are mainly due to the following points:

[0037] 1. Bonding problem between carbon fiber and original structure: The bonding between carbon fiber cloth and original concrete structure is a key factor. At the beam-column joint, due to the complexity of the original structure, the flatness and cleanliness of the concrete surface may affect the bonding effect. If the bonding layer is too thin or uneven, it may cause gaps or peeling between the carbon fiber and concrete, thus affecting the reinforcement effect.

[0038] 2. Uneven stress: At the beam-column joint, the stress situation is relatively complex, and the carbon fiber cloth needs to withstand a variety of stresses, including tension, shear force, and bending moment. Due to the characteristics of carbon fiber cloth, its stress performance in different directions is different, and it is easy to have uneven stress. This may cause the carbon fiber cloth to be overstressed in some directions and understressed in other directions, thus affecting the reinforcement effect.

[0039] 3. Difficulty in construction: The reinforcement construction of beam-column joints is relatively complex, requiring precise positioning and fixing of carbon fiber cloth. In actual construction, the shape and size of the joints may vary, making it more difficult to cut and fix the carbon fiber cloth. In addition, factors such as humidity and temperature during construction may also affect the bonding performance and reinforcement effect of the carbon fiber cloth.

[0040] In terms of stress analysis, the traditional carbon fiber reinforcement method mainly relies on the strength and stiffness of carbon fiber to improve the bearing capacity of beam-column joints. However, due to the above reasons, the stress performance of carbon fiber cannot be fully utilized and the reinforcement effect is not ideal.

[0041] The utility model has the following advantages by arranging a fiber-reinforced composite layer 4 on the reinforcement plate:

[0042] 1. Higher strength and rigidity: The reinforcement plate itself has high strength and rigidity, and can provide good support and protection. The fiber-reinforced composite layer 4 can further improve the strength and rigidity of the enclosure structure, making it more stable.

[0043] 2. Better durability: The combination of the reinforcement plate and the fiber-reinforced composite layer 4 can improve the durability of the enclosure structure. The composite layer can effectively prevent the influence of the external environment on the reinforcement plate and extend the service life of the enclosure structure.

[0044] 3. Better adaptability: The reinforcement plate can be bent or cut as needed to better adapt to the shape and size of the beam-column node. At the same time, the fiber-reinforced composite layer 4 can also be customized as needed to better adapt to the protection requirements of the beam-column body 1.

[0045] 4. Lower maintenance cost: Since both the reinforcement plate and the fiber reinforced composite layer 4 have good durability, the frequency of repair and replacement can be reduced, thereby reducing maintenance costs.

[0046] 5. Better environmental protection: Compared with the traditional reinforcement method, the method of combining the reinforcement plate with the fiber reinforced composite layer 4 can reduce the impact on the environment because this material is recyclable and conforms to the concept of sustainable development.

[0047] 6. Faster construction speed: Since the reinforcement plate and the fiber reinforced composite layer 4 are pre-fabricated, they can be directly installed during construction without the need for complicated processing or treatment, thereby speeding up the construction speed.

[0048] In general, the use of a combination of a reinforcement plate and a fiber reinforced composite layer 4 to enclose the beam-column joint can provide higher strength, stiffness and durability, better adaptability and environmental protection, as well as lower maintenance costs and faster construction speed.

[0049] In this embodiment, the first reinforcement plate 2 is composed of a first connecting plate 5 and a second connecting plate 6, and the first L-shaped reinforcement plate 3 is composed of a first L-shaped connecting plate 7 and a second L-shaped connecting plate 8. This arrangement can facilitate the length adjustment of the first reinforcement plate 2 and the first L-shaped reinforcement plate 3, so as to adapt to the size of the beam-column body 1.

[0050] like Figure 6 As shown, the first adjustment component includes a first connecting rod 9 fixedly connected to the first connecting plate 5 and a first connecting groove and a first fixing hole 11 opened on the second connecting plate 6. The first fixing hole 11 is communicated with the first connecting groove. A plurality of second fixing holes are opened on the first connecting rod 9, and the first connecting rod 9 is inserted into the first connecting groove. The first fixing hole 11 and the second fixing hole are inserted with the first fixing rod 12. When people need to adjust the size of the first reinforcement plate 2, they only need to make the first connecting rod 9 enter the first connecting groove or pull it out. At this time, the second fixing hole and the second fixing hole are aligned, and the first fixing rod 12 is inserted to complete the fixation and adjustment.

[0051] The second adjustment component includes a second connecting rod 13 fixedly connected to the first L-shaped connecting plate 7 and a second connecting groove and a third fixing hole 15 provided on the second L-shaped connecting plate 8. The third fixing hole 15 is communicated with the second connecting groove. A plurality of fourth fixing holes are provided on the second connecting rod 13, and the second connecting rod 13 is inserted into the second connecting groove. The third fixing hole 15 and the fourth fixing hole are inserted with a second fixing rod 16. When people need to adjust the size of the first L-shaped reinforcement plate 3, they only need to make the second connecting rod 13 enter the second connecting groove or pull it out. At this time, the third fixing hole 15 and the fourth fixing hole are aligned, and the fixing and adjustment are completed by inserting the second fixing rod 16.

[0052] Among them, in order to ensure normal installation, the first connecting rod 9 matches the first connecting groove and the second connecting rod 13 matches the second connecting groove. The matching here is a clearance fit, that is, the first connecting rod 9 enters the first connecting groove and the second connecting rod 13 enters the second connecting groove without shaking due to external reasons, resulting in poor reinforcement effect.

[0053] like Figure 2 As shown, an inclined reinforcement rod 17 is arranged on the outer side of the first L-shaped reinforcement plate 3, and the reinforcement rod 17 further enhances the reinforcement effect.

[0054] Since the utility model fixes the entire device in the form of bonding, in order to reduce weight, the first reinforcement plate and the first L-shaped reinforcement plate 3 can be made of a strong and light material, such as graphene.

[0055] What can be selected is: the first reinforcement plate and the first L-shaped reinforcement plate 3 can be fixed by bolts, so as to strengthen the fixation, and the materials that can be selected are glass fiber reinforced plastics and steel plates.

[0056] The installation steps of the utility model are:

[0057] 1. First, the first reinforcement plate and the first L-shaped reinforcement plate 3 are adjusted by the first adjustment component and the second adjustment component to make them conform to the size of the beam column body 1.

[0058] 2. Apply adhesive to the beam column body 1, and then bond the fiber reinforced composite layer 4 to fix the entire device.

[0059] 3. Assemble and fix through the first adjustment component and the second adjustment component.

[0060] 4. Carry out inspection.

[0061] The working principle of the utility model is as follows: firstly, people adjust the lengths of the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 respectively through the first adjustment component and the second adjustment component so as to match them with the beam-column body 1, apply adhesive colloid on the beam-column body 1, and then make the fiber-reinforced composite layer 4 on the inner wall of the quadrilateral protective plate formed by the two first reinforcement plates 2 and the two first L-shaped reinforcement plates 3 bonded to the beam-column body 1 for connection, so as to carry out enclosure, and then make the first fixing rod 12 and the second fixing rod 16 inserted for fixing, so as to complete the assembly. The device can provide higher strength, rigidity and durability, better adaptability and environmental protection, lower maintenance cost and faster construction speed by combining the reinforcement plate with the fiber-reinforced composite layer 4 to enclose the beam-column node.

[0062] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A reinforced beam-column node enclosure structure using fiber-reinforced composite materials, comprising a beam-column body (1), wherein an enclosure component is arranged on the beam-column body (1); Features: The enclosure component comprises two first reinforcement plates (2) and two first L-shaped reinforcement plates (3) arranged on the beam-column body (1); the two first reinforcement plates (2) and the two first L-shaped reinforcement plates (3) are hingedly connected to each other; the two first reinforcement plates (2) and the two first L-shaped reinforcement plates (3) form a quadrilateral protection plate for protecting the beam-column body (1); the two first reinforcement plates (2) and the two first L-shaped reinforcement plates (3) are provided with a fiber-reinforced composite layer (4) on one side close to the beam-column body (1); the two first reinforcement plates (2) protect the side of the beam-column body (1); the two first L-shaped reinforcement plates (3) protect the node of the beam-column body (1); the two first reinforcement plates (2) are provided with a first adjustment component for adjusting the length; and the two first L-shaped reinforcement plates (3) are provided with a second adjustment component for adjusting the length.

2. The reinforced beam-column node enclosure structure using fiber reinforced composite materials according to claim 1 is characterized in that: The first reinforcement plate (2) is composed of a first connecting plate (5) and a second connecting plate (6), and the first L-shaped reinforcement plate (3) is composed of a first L-shaped connecting plate (7) and a second L-shaped connecting plate (8).

3. The reinforced beam-column node enclosure structure using fiber reinforced composite materials according to claim 2 is characterized in that: The first adjustment component comprises a first connecting rod (9) fixedly connected to the first connecting plate (5) and a first connecting groove and a first fixing hole (11) provided on the second connecting plate (6); the first fixing hole (11) is connected to the first connecting groove; a plurality of second fixing holes are provided on the first connecting rod (9); the first connecting rod (9) is inserted into the first connecting groove; and a first fixing rod (12) is inserted into the first fixing hole (11) and the second fixing hole.

4. The reinforced beam-column node enclosure structure using fiber reinforced composite materials according to claim 2 is characterized in that: The second adjustment assembly comprises a second connecting rod (13) fixedly connected to the first L-shaped connecting plate (7) and a second connecting groove and a third fixing hole (15) provided on the second L-shaped connecting plate (8), wherein the third fixing hole (15) is connected to the second connecting groove, a plurality of fourth fixing holes are provided on the second connecting rod (13), and the second connecting rod (13) is inserted into the second connecting groove, and a second fixing rod (16) is inserted into the third fixing hole (15) and the fourth fixing hole.

5. The reinforced beam-column node enclosure structure using fiber reinforced composite materials according to claim 3 is characterized in that: The first connecting rod (9) matches the first connecting groove.

6. The reinforced beam-column node enclosure structure using fiber reinforced composite materials according to claim 1, characterized in that: An inclined reinforcement rod (17) is arranged on the outer side of the first L-shaped reinforcement plate (3).

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