A connecting structure of a glass fiber reinforced plastic bar and a steel bar

Abstract

The application relates to the technical field of building engineering, and provides a connecting structure of a glass fiber reinforced plastic bar and a steel bar, which comprises multiple groups of locking units arranged at intervals along the length direction of the glass fiber reinforced plastic bar, the locking unit comprises a connecting sheet and a locking strip, both ends of the locking strip pass through the connecting sheet and are connected with locking nuts; a locking channel is formed between the locking strip and the connecting sheet, and the glass fiber reinforced plastic bar and the steel bar pass through the locking channel. The connecting structure of the glass fiber reinforced plastic bar and the steel bar can improve the connecting reliability between the glass fiber reinforced plastic bar and the steel bar.

Description

Technical Field

[0001] This application relates to the technical field of building engineering, and in particular to a connection structure between glass fiber reinforced concrete and steel bars. Background Technology

[0002] As a new type of composite material reinforcement, glass fiber reinforcement has excellent corrosion resistance, thermal insulation and high tensile strength. It is also lightweight and easy to cut, making it more suitable for complex construction environments than traditional steel bars. Therefore, it is increasingly widely used in construction projects, especially in scenarios such as subway construction that require temporary support structures. It can avoid the loss of steel bars when cutting them during tunnel boring machine excavation, and greatly improve construction efficiency and structural durability.

[0003] However, in practical engineering, it is often necessary to connect fiberglass reinforcement bars with ordinary steel bars to meet structural stress requirements. Currently, the main connection methods are welding, adhesive bonding, or binding. Welding is prone to damaging the resin matrix of the fiberglass reinforcement bars due to high temperatures, thus compromising their mechanical properties. Adhesive bonding is greatly affected by environmental humidity and temperature, resulting in poor bonding reliability and a tendency for delamination over long-term use. Binding connections lack joint stability, have low connection strength, and are prone to loosening and misalignment, failing to effectively transfer stress.

[0004] The existing connection methods mentioned above all have obvious defects and are difficult to meet the requirements of connection reliability and structural safety in building structures, especially in scenarios such as temporary support for subways. Therefore, there is an urgent need for an improved connection structure between glass fiber reinforcement and steel bars to solve the shortcomings of the existing connection methods. Summary of the Invention

[0005] To improve the reliability of the connection between glass fiber reinforced bars and steel bars, this application provides a connection structure for glass fiber reinforced bars and steel bars.

[0006] The connection structure between glass fiber reinforced bars and steel bars provided in this application adopts the following technical solution: A connection structure for glass fiber reinforced concrete and steel bars includes multiple sets of locking units arranged at intervals along the length of the glass fiber reinforced concrete. Each locking unit includes a connecting piece and a locking strip. Both ends of the locking strip pass through the connecting piece and are connected to locking nuts. A locking channel is formed between the locking strip and the connecting piece, through which both the glass fiber reinforced concrete and the steel bars pass.

[0007] By adopting the above technical solution, when connecting glass fiber reinforced plastic (GFRP) bars and steel bars, one end of the GFRP bar and one end of the steel bar are passed through the locking channel. By tightening the locking nut, the locking channel is narrowed, thereby simultaneously binding the GFRP bar and the steel bar, achieving the connection between them. Multiple sets of locking units are arranged along the length of the GFRP bar to improve the reliability of the connection between the GFRP bar and the steel bar.

[0008] Optionally, the locking channel is provided with a first abutment seat, a second abutment seat, and an isolation seat, with the isolation seat located between the first abutment seat and the second abutment seat; the side walls of the isolation seat and the first abutment seat that are close to each other, and the side walls of the isolation seat and the second abutment seat that are close to each other, all have abutment arc surfaces, which abut against the glass fiber reinforcement or steel reinforcement.

[0009] By adopting the above technical solution, tightening the locking nut reduces the locking channel. Under the push of the locking strip, the distance between the first abutment seat and the isolation seat, and the distance between the second abutment seat and the isolation seat, gradually decreases, thereby pressing against the fiberglass reinforcement or steel bar through the abutment arc surface. The arrangement of the first abutment seat, the second abutment seat, and the isolation seat increases the contact area between the overall structure and the fiberglass reinforcement and steel bar, thereby improving the reliability of the connection between the fiberglass reinforcement and the steel bar.

[0010] Optionally, the second abutment is located on the side of the first abutment away from the connecting piece, and the two ends of the locking strip pass through the second abutment, the isolation seat and the first abutment in sequence and are connected to the connecting piece; the first abutment, the second abutment and the isolation seat all have a first through hole for the locking strip to pass through.

[0011] By adopting the above technical solution, the locking strip passes sequentially through the second abutment seat, the isolation seat, and the first through hole of the first abutment seat, and is then connected to the connecting piece by a locking nut. Tightening the locking nut gradually reduces the distance between the first abutment seat and the isolation seat, and between the second abutment seat and the isolation seat, thereby clamping the fiberglass reinforcement and the steel reinforcement and improving the reliability of the connection between the fiberglass reinforcement and the steel reinforcement.

[0012] Optionally, the first abutment is connected to a reinforcing rod, one end of which passes through the isolation seat and the second abutment in sequence and is connected to a reinforcing nut; both the isolation seat and the second abutment have a second through hole for the reinforcing rod to pass through.

[0013] By adopting the above technical solution, the locking strip is tightened with a locking nut, and the reinforcing rod is tightened with a reinforcing nut to taut the first abutment, the isolation seat, and the second abutment, thereby enhancing the clamping effect on the fiberglass reinforcement and the steel reinforcement. In actual operation, by alternately tightening the locking nut and the reinforcing nut, the connection stability of the fiberglass reinforcement and the steel reinforcement is greatly improved.

[0014] Optionally, an insertion channel is formed between the abutting arc surfaces of the first abutting seat and the isolation seat, and between the abutting arc surfaces of the second abutting seat and the isolation seat; an installation groove is provided in the isolation seat, and the two ends of the installation groove are respectively connected to the two insertion channels. An anti-detachment strip is provided in the installation groove, and the two ends of the anti-detachment strip abut against the glass fiber reinforcement and the steel reinforcement respectively.

[0015] By employing the above technical solution, after locking the first abutment seat, the second abutment seat, and the isolation seat, the fiberglass reinforcement and the steel reinforcement are locked within their respective insertion channels. At this time, the two ends of the anti-detachment strip abut against the fiberglass reinforcement and the steel reinforcement respectively, further reducing the possibility of the fiberglass reinforcement or the steel reinforcement detaching from the insertion channel along its own length direction under the locked state, thereby improving the stability of the connection.

[0016] Optionally, the anti-detachment strip is rotatably installed on the inner wall of the mounting groove, and the inner wall of the mounting groove is provided with a first limiting post and a second limiting post respectively; when the first abutment seat and the second abutment seat approach each other, the glass fiber reinforcement and the steel reinforcement force the anti-detachment strip to rotate into the mounting groove, and the two end side walls of the anti-detachment strip abut against the first limiting post and the second limiting post respectively.

[0017] By adopting the above technical solution, the setting of the first and second limiting posts limits the maximum angle of the anti-detachment strip's rotation, thereby ensuring that both ends of the anti-detachment strip are always pressed against the fiberglass reinforcement and the reinforcing steel. The anti-detachment strip, located within the installation groove and in an inclined state, reduces the possibility that the fiberglass reinforcement or reinforcing steel will detach from the insertion channel along its length when locked.

[0018] Optionally, a docking rod is connected between two adjacent locking units, and the two adjacent locking units are connected in series through the docking rod; the isolation seat has a docking groove for the docking rod to be inserted.

[0019] By adopting the above technical solution, two adjacent locking units are connected in series to form a whole through a connecting rod. The connecting rod can share the lateral torsional or bending force of the glass fiber reinforcement and the steel reinforcement, thereby improving the structural rigidity of the connection between the glass fiber reinforcement and the steel reinforcement.

[0020] Optionally, the side wall of the isolation seat is provided with an inlet and outlet for connecting the docking groove; the outer peripheral wall of the docking rod is provided with two cutting surfaces, and the distance between the two cutting surfaces is adapted to the distance between the two opposite side walls of the inlet and outlet.

[0021] By adopting the above technical solution and utilizing the fit between the inlet / outlet and the cutting surface, during the installation of the connecting rod, the cutting surface of the connecting rod is kept flush with the two opposite side walls of the inlet / outlet. Then, the connecting rod is pushed into the connecting groove from the inlet / outlet. After entering the connecting groove, the connecting rod is rotated so that the cutting surface of the connecting rod is not parallel to the two opposite side walls of the inlet / outlet, thus achieving the "fastening" of the connecting rod into the connecting groove and improving the ease of installation of the connecting rod.

[0022] Optionally, a limiting strip is slidably installed on the side wall of the isolation seat, and a pushing block is provided on both the first abutment seat and the second abutment seat. The pushing block has a pushing surface. When the first abutment seat and the second abutment seat are close to the isolation seat, the pushing block pushes the limiting strip through the pushing surface and forces the limiting strip to abut against the cutting surface of the connecting rod.

[0023] By adopting the above technical solution, tightening the locking nut and reinforcing nut brings the first and second abutment seats closer together to clamp the fiberglass reinforcement and steel bars. During this process, both the first and second abutment seats push the limiting strip through their respective pushing blocks, causing the limiting strip to slide and abut against the cutting surface of the connecting rod. This restricts the free rotation of the connecting rod, ensuring that the cutting surface of the connecting rod is not parallel to the two opposite sidewalls of the inlet and outlet, thus improving the installation stability of the connecting rod.

[0024] Optionally, the sidewall of the limiting strip is provided with a positioning protrusion, and a positioning groove is provided on the cutting surface for the positioning protrusion to be inserted.

[0025] By adopting the above technical solution, the limiting strip abuts against the cutting surface, forming an "anti-rotation" effect on the docking rod. Combined with the positioning protrusion embedded in the positioning groove, it restricts the possibility of the docking rod sliding along its own length direction, thereby further improving the installation stability of the docking rod.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting multiple sets of locking units, when connecting fiberglass reinforcement and steel bars, one end of the fiberglass reinforcement and one end of the steel bar are passed through the locking channel. By tightening the locking nut, the locking channel is narrowed, thereby simultaneously tightening the fiberglass reinforcement and steel bar, achieving the connection between them. Multiple sets of locking units are arranged along the length of the fiberglass reinforcement to improve the reliability of the connection between the fiberglass reinforcement and the steel bar.

[0027] 2. By setting up the first abutment seat, the second abutment seat, and the isolation seat, tightening the locking nut reduces the locking channel. Under the push of the locking strip, the distance between the first abutment seat and the isolation seat, and the distance between the second abutment seat and the isolation seat, gradually decreases, thereby pressing against the fiberglass reinforcement or steel reinforcement through the abutment arc surface. The arrangement of the first abutment seat, the second abutment seat, and the isolation seat increases the contact area between the overall structure and the fiberglass reinforcement and steel reinforcement, thereby improving the reliability of the connection between the fiberglass reinforcement and the steel reinforcement.

[0028] 3. By using connecting rods, cutting surfaces, and limiting strips, adjacent locking units are connected in series to form a whole. The connecting rods can share the lateral torsional or bending forces on the fiberglass reinforcement and steel bars, thereby improving the structural rigidity of the connection between the fiberglass reinforcement and steel bars. The limiting strips abut against the cutting surfaces, creating an anti-rotation effect on the connecting rods. Combined with the positioning protrusions embedded in the positioning grooves, this limits the possibility of the connecting rods slipping along their length, further improving the installation stability of the connecting rods. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 This is a schematic diagram illustrating the structure of the connecting piece and the locking strip in Embodiment 1; Figure 3 This is a schematic diagram illustrating the structure of the insertion channel in Example 2; Figure 4 This is an exploded view of the reinforcing rod and reinforcing nut in Example 2; Figure 5 This is a partial cross-sectional view of the anti-detachment strip in Example 3; Figure 6 This is a schematic diagram illustrating the structure of the connecting rod in Example 4; Figure 7 This is a partial cross-sectional view of Embodiment 4 illustrating the limiting strip; Figure 8 This is a partial cross-sectional view of the cutting surface in Example 4.

[0030] Explanation of reference numerals in the attached drawings: 1. Locking unit; 2. Connecting piece; 21. Strip groove; 3. Locking strip; 31. Locking nut; 32. Locking channel; 4. First abutment seat; 41. Reinforcing rod; 42. Reinforcing nut; 43. Pushing block; 431. Pushing surface; 44. First positioning groove; 5. Second abutment seat; 51. Second positioning groove; 6. Isolation seat; 61. Abutment arc surface; 62. First through hole; 63. Second through hole; 64. Insertion channel; 65. Mounting groove; 651. First limiting post; 652. Second limiting post; 66. Limiting strip; 661. Positioning protrusion; 67. Sliding groove; 7. Anti-detachment strip; 8. Connecting rod; 81. Cutting surface; 811. Positioning groove; 812. Second chamfered surface; 9. Connecting ear; 91. Connecting groove; 92. Inlet / outlet; 93. First chamfered surface. Detailed Implementation

[0031] The following combination Figures 1-8 This application will be described in further detail. Example 1

[0032] This application discloses a connection structure between glass fiber reinforcement and steel reinforcement.

[0033] Reference Figure 1 , Figure 2 A connection structure between glass fiber reinforced plastic (GFRP) bars and steel bars includes multiple sets of locking units 1, which are arranged at intervals along the length of the GFRP bars. Each locking unit 1 includes a connecting piece 2 and a locking strip 3. The surface of the connecting piece 2 is provided with a strip groove 21, and there are two strip grooves 21, which are arranged at intervals along the length of the connecting piece 2.

[0034] The locking strip 3 is U-shaped and is formed by bending. Both ends of the locking strip 3 pass through the two slots 21 of the connecting piece 2, and each end of the locking strip 3 is connected to a locking nut 31. The locking nut 31 is fitted onto the outer peripheral wall of the locking strip 3 and threadedly connected to the locking strip 3 (thread not shown in the figure). A first washer is installed between each locking nut 31 and the connecting piece 2. A locking channel 32 is formed between the locking strip 3 and the connecting piece 2, through which both the fiberglass reinforcement and the steel reinforcement pass.

[0035] The implementation principle of Embodiment 1 of this application is as follows: When connecting glass fiber reinforced plastic (GFRP) bars and steel bars, one end of the GFRP bar and one end of the steel bar are passed through the locking channel 32. By tightening the locking nut 31, the locking channel 32 is narrowed, thereby simultaneously tightening the GFRP bar and the steel bar, achieving the connection between the GFRP bar and the steel bar. Multiple sets of locking units 1 are arranged along the length of the GFRP bar to improve the reliability of the connection between the GFRP bar and the steel bar. Example 2

[0036] This application discloses a connection structure between glass fiber reinforcement and steel reinforcement.

[0037] The difference between the glass fiber reinforced concrete and steel bar connection structure disclosed in this application and Embodiment 1 is that: Reference Figure 3 , Figure 4 In this embodiment, a first abutment seat 4, a second abutment seat 5, and an isolation seat 6 are respectively arranged in the locking channel 32. The second abutment seat 5 is located on the side of the first abutment seat 4 away from the connecting piece 2, and the isolation seat 6 is located between the first abutment seat 4 and the second abutment seat 5.

[0038] The two ends of the locking strip 3 pass through the second abutment 5, the isolation seat 6 and the first abutment 4 in sequence and are connected to the connecting piece 2. The first abutment 4, the second abutment 5 and the isolation seat 6 are all provided with a first through hole 62 for the locking strip 3 to pass through.

[0039] Multiple reinforcing rods 41 are fixedly connected to the first abutment seat 4. One end of each reinforcing rod 41 is fixedly connected to the side wall of the first abutment seat 4 near the isolation seat 6, and the other end passes through the isolation seat 6 and the second abutment seat 5 in sequence and is connected to a reinforcing nut 42. The reinforcing nut 42 is sleeved on the outer peripheral wall of the reinforcing rod 41 and threadedly connected to the reinforcing rod 41 (the thread is not shown in the figure). A second washer is installed between each reinforcing nut 42 and the second abutment seat 5. Both the isolation seat 6 and the second abutment seat 5 have a second through hole 63 for the reinforcing rod 41 to pass through.

[0040] The sidewalls of the isolation seat 6 and the first abutment seat 4 that are close to each other, and the sidewalls of the isolation seat 6 and the second abutment seat 5 that are close to each other, all have abutment arc surfaces 61, which abut against the fiberglass reinforcement or steel reinforcement. Insertion channels 64 are formed between the abutment arc surfaces 61 of the first abutment seat 4 and the isolation seat 6, and between the abutment arc surfaces 61 of the second abutment seat 5 and the isolation seat 6, respectively. Fiberglass reinforcement and steel reinforcement are respectively inserted into two insertion channels 64.

[0041] The first abutment 4 has a first positioning groove 44 on its side wall away from the isolation seat 6, and the connecting piece 2 is partially embedded in the first positioning groove 44. The second abutment 5 has a second positioning groove 51 on its side wall away from the isolation seat 6, and the locking strip 3 is partially embedded in the second positioning groove 51.

[0042] The implementation principle of Embodiment 2 of this application is as follows: Tightening the locking nut 31 reduces the locking channel 32. Under the push of the locking strip 3, the distance between the first abutment seat 4 and the isolation seat 6, and the distance between the second abutment seat 5 and the isolation seat 6, gradually decreases, thereby abutting against the fiberglass reinforcement or steel bar through the abutment arc surface 61. The arrangement of the first abutment seat 4, the second abutment seat 5, and the isolation seat 6 increases the contact area between the overall structure and the fiberglass reinforcement and steel bar, thereby improving the reliability of the connection between the fiberglass reinforcement and the steel bar.

[0043] The locking strip 3 is tightened by the locking nut 31, and the reinforcing rod 41 is tightened by the reinforcing nut 42, thereby tightening the first abutment seat 4, the isolation seat 6, and the second abutment seat 5, enhancing the clamping effect on the fiberglass reinforcement and the steel reinforcement. In actual operation, by alternately tightening the locking nut 31 and the reinforcing nut 42, the connection stability of the fiberglass reinforcement and the steel reinforcement is greatly improved. Example 3

[0044] This application discloses a connection structure between glass fiber reinforcement and steel reinforcement.

[0045] The difference between the glass fiber reinforced concrete and steel bar connection structure disclosed in this application and that in embodiment 2 is as follows: Reference Figure 5 In this embodiment, the isolation seat 6 has an installation groove 65, and the two ends of the installation groove 65 are respectively connected to two insertion channels 64. An anti-detachment strip 7 is installed in the installation groove 65, and the two ends of the anti-detachment strip 7 abut against the fiberglass reinforcement and the reinforcing steel, respectively. The anti-detachment strip 7 is rotatably connected to the inner wall of the installation groove 65, and the inner wall of the installation groove 65 is fixedly installed with a first limiting post 651 and a second limiting post 652. When the first abutment seat 4 and the second abutment seat 5 approach each other, the fiberglass reinforcement and the reinforcing steel force the anti-detachment strip 7 to rotate into the installation groove 65, and the two end sidewalls of the anti-detachment strip 7 abut against the first limiting post 651 and the second limiting post 652, respectively.

[0046] The number of anti-detachment strips 7 is arranged at intervals along the length of the insertion channel 64, and the number of the first limiting post 651 and the second limiting post 652 are set accordingly.

[0047] The implementation principle of Embodiment 3 of this application is as follows: tightening the locking nut 31 and the reinforcing nut 42 to tighten the first abutment seat 4, the isolation seat 6, and the second abutment seat 5, thereby clamping and fixing the glass fiber reinforcement and the steel reinforcement. At this time, the two ends of the anti-detachment strip 7 are rotated at a certain angle under the push of the glass fiber reinforcement and the steel reinforcement, so that the side walls of the two ends of the anti-detachment strip 7 abut against the first limiting post 651 and the second limiting post 652 respectively.

[0048] The first limiting post 651 and the second limiting post 652 support the side walls at both ends of the anti-detachment strip 7, thereby achieving an inclined shape for the anti-detachment strip 7, with its two ends respectively abutting against the glass limiting rib and the reinforcing bar. The effect is that when an external force is applied to the glass fiber optic rib and the reinforcing bar in a mutually distancing manner, the anti-detachment strip 7, subjected to the frictional force of the glass fiber optic rib / reinforcing bar, tends to flip towards the insertion channel 64 to press against the glass fiber optic rib / reinforcing bar. That is, the greater the external force, the greater the pressing force from the anti-detachment strip 7 on the glass fiber optic rib / reinforcing bar, reducing the possibility of the glass fiber optic rib or reinforcing bar detaching from the insertion channel 64 along its length in the locked state, and improving the tensile strength and connection stability of the overall structure. Example 4

[0049] This application discloses a connection structure between glass fiber reinforcement and steel reinforcement.

[0050] The difference between the glass fiber reinforced concrete and steel bar connection structure disclosed in this application and that in embodiment 2 is as follows: Reference Figure 6 , Figure 7 , Figure 8 In this embodiment, a connecting rod 8 is installed between two adjacent locking units 1, and the two adjacent locking units 1 are connected in series through the connecting rod 8. A connecting ear 9 is fixedly installed on the side wall of the isolation seat 6 in the locking unit 1. The surface of the connecting ear 9 is provided with a connecting groove 91 for the connecting rod 8 to be inserted. The inner diameter of the connecting groove 91 is adapted to the outer diameter of the connecting rod 8.

[0051] The connecting ear 9 has an inlet / outlet 92 on its side wall away from the isolation seat 6. The inlet / outlet 92 connects to the docking groove 91 to allow the docking rod 8 to enter and exit. The outer peripheral wall of the docking rod 8 has two cutting surfaces 81. The distance between the two cutting surfaces 81 is adapted to the distance between the two opposite side walls of the inlet / outlet 92. The connecting ear 9 has a first chamfered surface 93 on its side wall at the inlet / outlet 92.

[0052] The side wall of the isolation seat 6 is provided with a sliding groove 67, and a limiting strip 66 is slidably installed in the sliding groove 67. Pushing blocks 43 are fixedly installed on the side walls of the first abutment seat 4 and the second abutment seat 5 that are close to each other. The pushing blocks 43 have a pushing surface 431. When the first abutment seat 4 and the second abutment seat 5 are close to the isolation seat 6, the pushing blocks 43 push the limiting strip 66 through the pushing surface 431 and force the limiting strip 66 to abut against the cutting surface 81 of the connecting rod 8.

[0053] A positioning protrusion 661 is fixedly installed on the side wall of the limiting strip 66 near the docking rod 8. A positioning groove 811 for the positioning protrusion 661 to be inserted is provided on the cutting surface 81. A second chamfered surface 812 is provided on the side wall of the docking rod 8 located in the positioning groove 811.

[0054] The implementation principle of Embodiment 4 of this application is as follows: When installing the connecting rod 8, the cutting surface 81 of the connecting rod 8 is kept flush with the two opposite side walls of the inlet and outlet 92, and then the connecting rod 8 is pushed into the connecting groove 91 from the inlet and outlet 92. After entering the connecting groove 91, the connecting rod 8 is rotated so that the cutting surface 81 of the connecting rod 8 is not parallel to the two opposite side walls of the inlet and outlet 92, thus realizing the "fastening" of the connecting rod 8 into the connecting groove 91.

[0055] Tighten the locking nut 31 and the reinforcing nut 42 to bring the first abutment seat 4 and the second abutment seat 5 closer together to clamp the fiberglass reinforcement and the steel reinforcement. During this process, both the first abutment seat 4 and the second abutment seat 5 push the limiting strip 66 through their respective pushing blocks 43, causing the limiting strip 66 to slide and abut against the cutting surface 81 of the connecting rod 8, thereby restricting the free rotation of the connecting rod 8 and ensuring that the cutting surface 81 of the connecting rod 8 is not parallel to the two opposite side walls of the inlet and outlet 92, thus improving the installation stability of the connecting rod 8. When the limiting strip 66 abuts against the cutting surface 81, the positioning protrusion 661 is embedded in the positioning groove 811, thereby limiting the possibility of the connecting rod 8 sliding along its own length direction, further improving the installation stability of the connecting rod 8.

[0056] Two adjacent locking units 1 are connected in series to form a whole through a connecting rod 8. The connecting rod 8 can share the lateral torsional or bending force of the glass fiber reinforcement and the steel reinforcement, thereby improving the structural rigidity of the connection between the glass fiber reinforcement and the steel reinforcement.

[0057] The above are preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connection structure between glass fiber reinforced concrete and steel bars, characterized in that: It includes multiple sets of locking units (1) arranged at intervals along the length of the glass fiber reinforcement. Each locking unit (1) includes a connecting piece (2) and a locking strip (3). Both ends of the locking strip (3) pass through the connecting piece (2) and are connected to locking nuts (31). A locking channel (32) is formed between the locking strip (3) and the connecting piece (2). Both the glass fiber reinforcement and the steel reinforcement pass through the locking channel (32).

2. The connection structure between glass fiber reinforced concrete and steel bars according to claim 1, characterized in that: The locking channel (32) is provided with a first abutment seat (4), a second abutment seat (5) and an isolation seat (6), with the isolation seat (6) located between the first abutment seat (4) and the second abutment seat (5). The side walls of the isolation seat (6) and the first abutment seat (4) that are close to each other, and the side walls of the isolation seat (6) and the second abutment seat (5) that are close to each other, all have abutment arc surfaces (61), which abut against the glass fiber reinforcement or steel reinforcement.

3. The connection structure between glass fiber reinforced concrete and steel bars according to claim 2, characterized in that: The second abutment (5) is located on the side of the first abutment (4) away from the connecting piece (2). The two ends of the locking strip (3) pass through the second abutment (5), the isolation seat (6) and the first abutment (4) in sequence and are connected to the connecting piece (2). The first abutment (4), the second abutment (5) and the isolation seat (6) all have a first through hole (62) through which the locking strip (3) passes.

4. The connection structure between glass fiber reinforced bars and steel bars according to claim 2, characterized in that: The first abutment (4) is connected to a reinforcing rod (41). One end of the reinforcing rod (41) passes through the isolation seat (6) and the second abutment (5) in sequence and is connected to a reinforcing nut (42). The isolation seat (6) and the second abutment (5) both have a second through hole (63) through which the reinforcing rod (41) passes.

5. The connection structure between glass fiber reinforced concrete and steel bars according to claim 2, characterized in that: Insertion channels (64) are formed between the abutting arc surfaces (61) of the first abutting seat (4) and the isolation seat (6), and between the abutting arc surfaces (61) of the second abutting seat (5) and the isolation seat (6); an installation groove (65) is provided in the isolation seat (6), and the two ends of the installation groove (65) are respectively connected to the two insertion channels (64). An anti-detachment strip (7) is provided in the installation groove (65), and the two ends of the anti-detachment strip (7) abut against the glass fiber reinforcement and the steel reinforcement respectively.

6. The connection structure between glass fiber reinforced concrete and steel bars according to claim 5, characterized in that: The anti-detachment strip (7) is rotatably installed on the inner wall of the mounting groove (65). The inner wall of the mounting groove (65) is provided with a first limiting post (651) and a second limiting post (652). When the first abutment seat (4) and the second abutment seat (5) approach each other, the glass fiber reinforcement and the steel reinforcement force the anti-detachment strip (7) to rotate into the mounting groove (65), and the two end side walls of the anti-detachment strip (7) abut against the first limiting post (651) and the second limiting post (652) respectively.

7. The connection structure between glass fiber reinforced concrete and steel bars according to claim 2, characterized in that: A docking rod (8) is connected between two adjacent locking units (1), and the two adjacent locking units (1) are connected in series through the docking rod (8); the isolation seat (6) has a docking groove (91) for the docking rod (8) to be inserted.

8. The connection structure between glass fiber reinforced concrete and steel bars according to claim 7, characterized in that: The side wall of the isolation seat (6) is provided with an inlet and outlet (92) for connecting the docking groove (91); the outer peripheral wall of the docking rod (8) is provided with two cutting surfaces (81), and the distance between the two cutting surfaces (81) is adapted to the distance between the two opposite side walls of the inlet and outlet (92).

9. The connection structure between glass fiber reinforced concrete and steel bars according to claim 8, characterized in that: The isolation seat (6) has a limit strip (66) slidably installed on its side wall. The first abutment seat (4) and the second abutment seat (5) are each provided with a push block (43), and the push block (43) has a push surface (431). When the first abutment seat (4) and the second abutment seat (5) approach the isolation seat (6), the push block (43) pushes the limit strip (66) through the push surface (431) and forces the limit strip (66) to abut against the cutting surface (81) of the docking rod (8).

10. The connection structure between glass fiber reinforced bars and steel bars according to claim 9, characterized in that: The side wall of the limiting strip (66) is provided with a positioning protrusion (661), and a positioning groove (811) is provided on the cutting surface (81) for the positioning protrusion (661) to be inserted.

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