Carbon fiber and glass fiber composite I-shaped beam structure

Abstract

The invention discloses a carbon fiber and glass fiber composite I-shaped beam structure which comprises a web plate, flanges are fixedly connected to the upper end and the lower end of the web plate, a carbon fiber plate is fixed to the upper ends of the flanges, auxiliary supporting mechanisms are arranged on the two sides of the web plate, and each auxiliary supporting mechanism comprises a mounting plate, a sliding block, a sliding groove, a filling block, a supporting plate and a reinforcing plate. The sliding grooves are formed in the outer sides of the mounting plates, the sliding blocks are located in the sliding grooves, the outer sides of the sliding grooves are connected with the supporting plates, the filling blocks are arranged between the two sliding blocks, the upper surfaces of the supporting plates make contact with flanges, the supporting plates and the front ends of the mounting plates are connected with the reinforcing plates through bolts, the mounting plates are connected with the webs through high-strength bolts and the like, and forming holes are formed in the webs. Through the structure, the composite characteristic of the carbon fibers and the glass fibers is utilized, and the I-shaped section and the auxiliary supporting mechanism are combined, so that efficient load bearing, balance light weight and high strength are achieved, the bending resistance and shear resistance are improved, the device adapts to high-corrosion scenes, and installation and maintenance are convenient and fast.

Description

Technical Field

[0001] The present invention relates to the technical field of construction engineering, and in particular to a carbon fiber and glass fiber composite I-beam structure. Background Art

[0002] Traditional I-beams are widely used in engineering fields such as construction and bridges. Their structural design needs to take into account both load-bearing capacity and lightweight requirements. At present, I-beams are mostly made of steel, single glass fiber or carbon fiber composite materials, but there are obvious limitations. Although steel has high strength, it has the problems of heavy weight and poor corrosion resistance. It is easy to rust in highly corrosive environments such as the seaside and chemical plants, requires frequent maintenance, and increases the bearing pressure of the foundation. Pure glass fiber beams have good shear resistance, but limited tensile and compressive strength, and it is difficult to withstand high loads. Pure carbon fiber beams have excellent mechanical properties, but the material cost is high, which is not conducive to large-scale application.

[0003] In addition, the connection between the flange and the web of the traditional I-beam is prone to stress concentration due to uneven load transfer, which leads to premature damage to the structure. In addition, the auxiliary support components are mostly fixed structures with poor installation adaptability. They need to be replaced as a whole during maintenance, which is costly. Therefore, a composite structure I-beam with high strength, lightweight, corrosion resistance and low cost is needed to solve the pain points of the existing technology. Summary of the Invention

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the present invention to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a carbon fiber and glass fiber composite I-beam structure that can solve the performance shortcomings of existing traditional single-material I-beams and solve the stress concentration problem at the connection between the flange and the web.

[0006] To solve the above technical problems, the present invention provides a carbon fiber and glass fiber composite I-beam structure, which adopts the following technical solution: comprising a web, wherein the upper and lower ends of the web are fixedly connected to flanges, the upper ends of the flanges are fixedly connected to carbon fiber plates, and auxiliary support mechanisms are provided on both sides of the web;

[0007] The auxiliary support mechanism includes a mounting plate, a sliding block, a sliding groove, a filling block, a support plate and a reinforcing plate.

[0008] Optionally, the inner side of the mounting plate is in close contact with the side wall of the web.

[0009] The above technical solution helps to ensure that the auxiliary support mechanism is better connected to the I-beam body, so that the auxiliary support mechanism can more effectively share the force borne by the web.

[0010] Optionally, the sliding grooves are located on the outside of the mounting plate and are two in number, and are located close to the front end and the rear end.

[0011] Through the above technical solution: the support plate can move along the slide groove at a specific position, thereby achieving contact and support with the flange, and also helps to reasonably distribute the supporting force.

[0012] Optionally, the sliders are located on the inner wall of the slide groove and there are two of them, which are located close to the upper end and the lower end. The outer sides of the sliders are fixedly connected to the support plate, and the filling block is located between the two sliders.

[0013] Through the above technical solution: the slider is fixedly connected to the support plate and can slide in the slide groove, which makes it easy to adjust the position of the support plate during installation so that it is in close contact with the flange. The filling block is located between the two sliders and can play a filling and certain supporting role.

[0014] Optionally, the upper surface of the support plate is in close contact with the flange.

[0015] Through the above technical solution: the auxiliary support mechanism can directly provide support for the flange, and transfer part of the load borne by the flange to the mounting plate and the web through the support plate.

[0016] Optionally, the front end of the support plate is fixedly connected to the reinforcement plate via a first bolt, and the front end of the mounting plate is fixedly connected to the reinforcement plate via a second bolt.

[0017] Through the above technical solution, the first bolt and the second bolt are used to fix the connection, forming a triangular stable structure, which can effectively distribute the load borne by the support plate to the mounting plate and then to the web.

[0018] Optionally, a fixing block is fixedly connected to the outer side of the filling block, and both ends of the fixing block are fixedly connected to the slider via a third bolt.

[0019] Through the above technical solution: the stability of the internal structure of the auxiliary support mechanism is enhanced, ensuring that the components will not move relative to each other when subjected to force.

[0020] Optionally, formed holes are arranged at intervals inside the web along the length direction, and the formed holes pass through the thickness direction of the web. A high-strength bolt is arranged on the left side of the mounting plate, and the right end of the high-strength bolt passes through the formed holes inside the web and the mounting plates on both sides respectively. The outer surface of the high-strength bolt is threadedly connected with a high-strength nut, and an anti-slip pad is arranged between the high-strength nut and the right side mounting plate of the web.

[0021] Through the above technical solution: the mounting plate and the web can be tightly connected, and part of the shear force borne by the web is transmitted to the auxiliary support mechanism. At the same time, high-strength bolts and nuts combined with anti-slip pads can prevent the connection from loosening.

[0022] In summary, the present invention has at least one of the following beneficial effects:

[0023] 1. The carbon fiber plate at the upper end of the flange utilizes the high strength and high modulus of carbon fiber to efficiently bear the tensile and compressive stresses generated by bending loads. The web and flanges are made of glass fiber reinforced composite materials. With their excellent shear resistance, they effectively bear the shear force of the beam and transfer the load between the flanges. The combination of the two materials makes the structure lightweight while achieving high strength, and significantly improves the bending and shear resistance.

[0024] 2. The sliding design of the slider in the slide groove makes it easy to adjust the position of the support plate during installation so that it is in close contact with the flange. The first and second bolts fix the reinforcement plate, and the third bolt fixes the filling block and the slider to ensure that the components of the auxiliary support mechanism are firmly connected and form a stable whole with the main structure. The force transmission path is clear and efficient. High-strength bolts penetrate the formed holes of the web and the mounting plates on both sides. Together with high-strength nuts and anti-slip pads, they ensure a close connection between the mounting plate and the web, and prevent loosening due to vibration or load fluctuations. The anti-slip pads increase friction to further improve the reliability of the connection, ensuring that the structure remains stable during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the reinforcement plate installation structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the filling block installation structure of the present invention;

[0029] Figure 4 It is a schematic diagram of the connection of the auxiliary support mechanisms on both sides of the present invention.

[0030] Explanation of the accompanying drawings: 1. web; 2. flange; 3. carbon fiber plate; 4. mounting plate; 5. slider; 6. support plate; 7. reinforcement plate; 8. first bolt; 9. second bolt; 10. slide groove; 11. filling block; 12. fixing block; 13. third bolt; 14. auxiliary support mechanism; 15. high-strength bolt; 16. high-strength nut; 17. anti-slip pad; 18. forming hole. DETAILED DESCRIPTION

[0031] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be understood as a limitation on the scope of protection of the present invention.

[0032] Reference Figure 1-4 An embodiment of the present invention provides a carbon fiber and glass fiber composite I-beam structure, which includes a web 1, wherein the upper and lower ends of the web 1 are fixedly connected to flanges 2, the upper ends of the flanges 2 are fixedly connected to carbon fiber plates 3, and auxiliary support mechanisms 14 are provided on both sides of the web 1.

[0033] The auxiliary support mechanism 14 includes a mounting plate 4, a slider 5, a slide groove 10, a filling block 11, a support plate 6 and a reinforcement plate 7. The inner side of the mounting plate 4 is in close contact with the side wall of the web 1. The slide groove 10 is located on the outer side of the mounting plate 4 and there are two of them, and they are located near the front and rear ends. The slider 5 is located on the inner wall of the slide groove 10 and there are two of them, and they are located near the upper and lower ends. The outer side of the slider 5 is fixedly connected to the support plate 6, and the filling block 11 is located between the two sliders 5.

[0034] The upper surface of the support plate 6 is in close contact with the flange 2. The front end of the support plate 6 is fixedly connected to the reinforcing plate 7 by the first bolt 8. The front end of the mounting plate 4 is fixedly connected to the reinforcing plate 7 by the second bolt 9. The outer side of the filling block 11 is fixedly connected with a fixing block 12. The two ends of the fixing block 12 are fixedly connected to the slider 5 by a third bolt 13. The inside of the web 1 is provided with formed holes 18 at intervals along the length direction. The formed holes 18 pass through the thickness direction of the web 1. A high-strength bolt 15 is provided on the left side of the mounting plate 4. The right end of the high-strength bolt 15 passes through the formed hole 18 inside the web 1 and the mounting plates 4 on both sides respectively. The outer surface of the high-strength bolt 15 is threadedly connected with a high-strength nut 16. An anti-slip pad 17 is provided between the high-strength nut 16 and the right side mounting plate 4 of the web 1.

[0035] Working principle: The I-beam achieves efficient load-bearing through the composite properties of carbon fiber and glass fiber. Its main structure is that a 3-5mm thick carbon fiber plate 3 is attached to the two flanges 2 of the glass fiber I-beam to make it a load-bearing whole. The carbon fiber plate 3 at the upper end of the flange 2 uses the high strength and high modulus characteristics of carbon fiber to mainly bear the tensile stress and compressive stress generated by the bending load. The web 1 and flange 2 are made of glass fiber reinforced composite materials. With the excellent shear resistance and moderate cost of glass fiber, it bears the shear force of the beam body and transfers the load between the flanges 2. The overall I-section design is adopted. The upper and lower flanges 2 improve the bending resistance by increasing the section moment of inertia. The web 1 connects the upper and lower flanges 2 and resists shear deformation, so that the load is evenly transferred from the flange 2 to the web 1 to avoid local stress concentration.

[0036] Installation of the auxiliary support mechanism 14: During installation, first place the mounting plate 4 on both sides of the web 1, then slide the slider 5 to make the support plates 6 at the upper and lower ends closely contact the upper and lower flanges 2, and use the reinforcing plate 7 and the first bolt 8 and the second bolt 9 to fix the support plate 6 to the mounting plate 4. Through this installation process, ensure that the auxiliary support mechanism 14 forms a stable connection with the main structure, thereby realizing effective force transmission. After the installation is completed, the mounting plate 4 is tightly connected to the web 1 through the high-strength bolts 15, and part of the shear force borne by the web 1 is transmitted to the auxiliary support mechanism 14. The high-strength bolts 15 pass through the formed holes 18 of the web 1 and the mounting plates 4 on both sides, and cooperate with the high-strength nuts 16 and anti-slip pads 17 to ensure that the connection is tight to prevent loosening due to vibration or load fluctuations. At the same time, the anti-slip pads 17 increase friction.

[0037] The reinforcing plate 7 is connected to the support plate 6 and the mounting plate 4 by the first bolt 8 and the second bolt 9 respectively, forming a triangular stable structure. The load of the flange 2 borne by the support plate 6 is distributed to the mounting plate 4, and then transmitted to the web 1, thereby improving the supporting stiffness of the auxiliary mechanism. The composite structure of glass fiber and carbon fiber takes advantage of the material properties when the various components are subjected to stress, achieving a balance between lightweight and high strength. Due to its excellent corrosion resistance, it can replace steel beams for use in high-corrosion scenarios such as seaside and chemical plants.

[0038] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A carbon fiber and glass fiber composite I-beam structure, comprising a web (1), characterized in that: The upper and lower ends of the web (1) are fixedly connected to flanges (2), the upper ends of the flanges (2) are fixedly connected to carbon fiber plates (3), and auxiliary support mechanisms (14) are provided on both sides of the web (1); The auxiliary support mechanism (14) comprises a mounting plate (4), a slider (5), a slide groove (10), a filling block (11), a support plate (6) and a reinforcement plate (7).

2. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: The inner side of the mounting plate (4) is in close contact with the side wall of the web (1).

3. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: The sliding grooves (10) are located outside the mounting plate (4) and are two in number, and are located near the front end and the rear end.

4. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: The sliders (5) are located on the inner wall of the slide groove (10) and are two in number, and are located near the upper end and the lower end. The outer sides of the sliders (5) are fixedly connected to the support plate (6), and the filling block (11) is located between the two sliders (5).

5. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: The upper surface of the support plate (6) is in close contact with the flange (2).

6. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: The front end of the support plate (6) is fixedly connected to the reinforcing plate (7) via a first bolt (8), and the front end of the mounting plate (4) is fixedly connected to the reinforcing plate (7) via a second bolt (9).

7. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: A fixing block (12) is fixedly connected to the outside of the filling block (11), and both ends of the fixing block (12) are fixedly connected to the slider (5) via a third bolt (13).

8. The carbon fiber and glass fiber composite I-beam structure according to claim 1, characterized in that: The web (1) is provided with formed holes (18) at intervals along the length direction, and the formed holes (18) pass through the thickness direction of the web (1). A high-strength bolt (15) is provided on the left side of the mounting plate (4), and the right end of the high-strength bolt (15) passes through the formed holes (18) inside the web (1) and the mounting plates (4) on both sides respectively. The outer surface of the high-strength bolt (15) is threadedly connected with a high-strength nut (16), and an anti-slip pad (17) is provided between the high-strength nut (16) and the right side mounting plate (4) of the web (1).

Images