Novel self-anchored suspension bridge anchoring structure

Abstract

The utility model provides a novel self-anchored suspension bridge anchoring structure which comprises a main cable connecting part and a prestress connecting part, the main cable connecting part is detachably connected with a cable strand anchor head, the prestress connecting part is provided with an anchor hole, the anchor hole is used for anchoring a prestress steel beam, and a screw assembly is arranged between the main cable connecting part and the prestress connecting part. One end of the screw assembly is connected with the prestress connecting part, the other end of the screw assembly is connected with the main cable connecting part, and the screw assembly is used for adjusting the distance between the prestress connecting part and the main cable connecting part; connection of the main cable strand and the prestressed steel beam is achieved through a single screw structure, connection of multiple pull rods is not needed, the installation period is shortened, and meanwhile the problems that due to the fact that the tension direction of the main cable strand is changed, the pull rods at the local positions are uneven in stress, and the service life is shortened are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable anchoring of suspension bridges, and particularly relates to a new type of anchoring structure for self-anchored suspension bridges. Background Technique

[0002] The anchoring of a suspension bridge refers to the process of fixing the main cable of the suspension bridge to the foundation, and the main cable is fixed through an anchor block. The anchor block is an important part of the suspension bridge. The design and construction of the anchor block are key links in the construction of the suspension bridge, which directly affect the service life and safety of the suspension bridge.

[0003] Concrete anchoring construction is widely used in the construction of self-anchored suspension bridges, such as Chongqing E Gongyan Bridge, Nansha Wanlong Bridge, and the single-tower self-anchored suspension bridge on Putian Ligang Avenue.

[0004] The existing self-anchored suspension bridges adopt a post-anchoring method, that is, the anchoring end of the main cable needs to pass through the anchor block, resulting in a longer construction period compared with the front anchor.

[0005] At present, the development of the anchoring structure of the front anchor is limited. The structure of the ground anchor block needs to be applied to the construction of the front anchor. Since the traditional ground anchoring structure has many anchor points, the tie rods need to be bolted one by one, which is cumbersome to operate and not conducive to high-altitude operations.

[0006] For example, Chinese Patent CN 117107636 A discloses a suspension bridge anchoring system using parallel prestressed tendons and its construction method, which includes an anchor block part, a cable strand anchor head part, and a connection part. The anchor block part includes an anchor body, a front anchor backing plate, a rear anchor backing plate, prestressed tendons, a front anchor assembly, a rear anchor assembly, and parallel prestressed tendon ducts; the cable strand anchor head part includes a main cable strand, a cable strand anchor head, and a cable strand connection plate; the connection part includes a connector, a first tie rod, and a second tie rod; the connector includes a bottom plate, a first side plate and a second side plate vertically and fixedly connected to both sides of the bottom plate; the first side plate and the second side plate are respectively hinged to one end of the first tie rod and the second tie rod along the same axis of rotation; the other ends of the first tie rod and the second tie rod are clamped to the upper end surface of the cable strand connection plate; the first tie rod and the second tie rod are arranged in parallel with the main cable strand.

[0007] The anchoring system disclosed in the above patent needs to use multiple tie rods to connect the front anchor backing plate and the rear anchor backing plate, and each single tie rod needs to be bolted at both ends. Since the prestressed steel bundle and the main cable strand bear huge tensile forces, it is time-consuming and laborious to install the bolts.

[0008] Therefore, a suspension bridge anchoring structure that can reduce the construction difficulty of the front anchor surface anchoring of prestressed steel bundle suspension bridges is needed. Summary of the Utility Model

[0009] The utility model provides a novel anchoring structure for a self-anchored suspension bridge, which realizes the connection of the main cable strands and the prestressed steel bundles through a single screw rod structure, eliminating the need for multiple tie rods. This not only reduces the installation period but also addresses the problem of uneven stress on local tie rods and reduced service life caused by the change in the tension direction of the main cable strands for multiple tie rods.

[0010] The utility model provides a novel anchoring structure for a self-anchored suspension bridge, comprising: a main cable connection part and a prestressed connection part. The main cable connection part is detachably connected to the strand anchor head. The prestressed connection part is provided with an anchor hole for anchoring the prestressed steel bundle. A screw rod assembly is arranged between the main cable connection part and the prestressed connection part. One end of the screw rod assembly is connected to the prestressed connection part, and the other end is connected to the main cable connection part. The screw rod assembly is used to adjust the distance between the prestressed connection part and the main cable connection part.

[0011] Preferably, the main cable connection part includes a main cable strand and a strand anchor head, and the strand anchor head anchors the main cable strand;

[0012] The main cable connection part further includes a cavity, and an accommodation chamber is arranged in the cavity for accommodating the strand anchor head;

[0013] One side of the accommodation chamber is provided with an installation opening for the strand anchor head and the main cable strand to enter and exit the accommodation chamber.

[0014] Preferably, the installation opening includes an anchor head inlet and outlet and a strand inlet and outlet. The top end of the anchor head inlet and outlet communicates with the bottom end of the strand inlet and outlet, and the opening of the strand inlet and outlet is smaller than the opening of the anchor head inlet and outlet;

[0015] The top end of the strand inlet and outlet is open, and a main cable through hole is arranged on the top surface of the cavity, and the main cable through hole communicates with the adjacent surface of the strand inlet and outlet.

[0016] Preferably, a limiting groove is arranged on the inner top surface of the accommodation chamber. The top surface of the limiting groove communicates with the main cable through hole, and the diameter of the limiting groove is larger than the diameter of the main cable through hole;

[0017] A blocking block is arranged in the opening of the anchor head inlet and outlet, and the blocking block is arranged on the inner top surface of the anchor head inlet and outlet;

[0018] The blocking block is of a triangular prism structure, and one side edge of the triangular prism structure is hinged to the inner top surface of the anchor head inlet and outlet;

[0019] An accommodation groove is arranged on the inner top surface of the anchor head inlet and outlet for accommodating the blocking block, and a spring is arranged between the inner top surface of the accommodation groove and the top surface of the blocking block.

[0020] Preferably, the prestressed connection part includes a fastening block. The fastening block is provided with a first threaded hole along its length direction for the fastening block to be threadedly connected to the screw rod assembly. An installation hole is arranged on the surface of the fastening block away from the first threaded hole, and one end of the installation hole communicates with one end of the first threaded hole;

[0021] One side of the fastening block close to the mounting hole is provided with a prestressed steel strand anchor plate for anchoring the prestressed steel strand.

[0022] Preferably, the inner wall of the mounting hole is provided with an internal thread for threadedly connecting a threaded tube. One end of the threaded tube away from the mounting hole passes through the prestressed steel strand anchor plate, and a second threaded hole is provided at the center of the prestressed steel strand anchor plate for threadedly connecting the threaded tube.

[0023] A sliding groove is provided on the inner wall of one end of the threaded tube close to the mounting hole, a retaining platform is provided at the bottom end of the sliding groove, and a fastening assembly is slidably arranged in the sliding groove.

[0024] Preferably, the fastening assembly includes a sleeve and a retaining ring. The retaining ring is sleeved on the outer wall of one end of the sleeve. The retaining ring slides between the retaining platform and the inner top surface of the sliding groove. A plurality of strip-shaped grooves are provided at one end of the sleeve away from the sleeve body. Each strip-shaped groove is arranged along the length direction of the sleeve, and each strip-shaped groove is spaced apart on the outer wall of the sleeve.

[0025] Preferably, the screw rod assembly includes a connecting rod. An external thread is provided on the outer wall of the middle section of the connecting rod for threadedly connecting the connecting rod to the mounting hole. One end of the connecting rod is connected to the bottom surface of the cavity, and the other end is slidably arranged in the sleeve.

[0026] A reducing pipe is sleeved on the outer wall of one end of the connecting rod away from the cavity. The diameter of the reducing pipe gradually decreases along the length direction of the connecting rod, and the small-diameter end of the reducing pipe is arranged at one end away from the cavity.

[0027] The inner diameter of one end of the sleeve away from the retaining ring gradually shrinks.

[0028] An auxiliary limiting assembly is provided on the outer wall of one end of the sleeve away from the retaining ring. The prestressed steel strand passes through the auxiliary limiting assembly and is connected to the prestressed steel strand anchor plate. The auxiliary limiting assembly cooperates with the reducing pipe to clamp the prestressed steel strand between the front anchor face and the prestressed steel strand anchor plate.

[0029] Preferably, the auxiliary limiting assembly includes a short pipe, a first circular plate, and a second circular plate. The first circular plate and the second circular plate are respectively arranged on both end faces of the short pipe. A plurality of through holes are provided on the surfaces of the first circular plate and the second circular plate. The through holes are in pairs, and one pair of through holes is used for passing the prestressed steel strand.

[0030] Adjusting holes are also provided on the surfaces of the first circular plate and the second circular plate. The sleeve is movably arranged in the adjusting holes. A plurality of clamping blocks are abutted against the outer wall of one end of the sleeve away from the retaining ring. Each clamping block is arranged in a divergent manner with the center of the second circular plate as the center. Each clamping block is respectively arranged in a slide rail. One end of the slide block away from the sleeve is used for abutting against the prestressed steel strand between the two through holes.

[0031] Preferably, a handle is provided on the outer circumferential wall of one end of the connecting rod close to the cavity.

[0032] The working principle and beneficial effects of the present utility model are as follows:

[0033] The present utility model provides a novel self-anchored suspension bridge anchoring structure, including: a main cable connection part and a prestressed connection part. The main cable connection part is detachably connected to the strand anchor head. The prestressed connection part is provided with an anchor hole for anchoring the prestressed steel strand. A screw rod assembly is arranged between the main cable connection part and the prestressed connection part. One end of the screw rod assembly is connected to the prestressed connection part, and the other end is connected to the main cable connection part. The screw rod assembly is used to adjust the distance between the prestressed connection part and the main cable connection part.

[0034] In the present utility model, after the tensioning of the prestressed steel strand is completed, concrete is filled into the prestressed steel pipe. When the concrete reaches the strength requirement, the prestressed steel strand is connected to the main cable strand. During the connection, first, the main cable connection part is detachably connected to the main cable strand, and then the prestressed connection part is anchored to the prestressed steel strand. Secondly, a tensioning machine is used to tension the prestressed steel strand and the main cable strand, and the screw rod assembly is screwed to gradually reduce the distance between the prestressed connection part and the main cable connection part until a tightened state is reached. During the connection process, only the screw rod assembly needs to be screwed to adjust the distance between the prestressed connection part and the main cable connection part. Compared with the installation of multiple tie bolts in the traditional way, the construction on the front anchor surface of the anchor body is more labor-saving and faster. At the same time, the force on a single screw rod can improve the problem of excessive local tie rod force caused by the change of the tension direction, and extend the service life of the structure.

[0035] Other features and advantages of the present utility model will be described in the subsequent specification, and part of them will be obvious from the specification or understood by implementing the present utility model. The objectives and other advantages of the present utility model can be achieved and obtained through the structure specifically pointed out in the written specification and the drawings.

[0036] The technical solution of the present utility model will be further described in detail below through the drawings and embodiments. Description of the Drawings

[0037] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0038] Figure 1 is a schematic installation diagram of the screw rod assembly of the present utility model;

[0039] Figure 2 is a schematic structure diagram of the main cable connection part of the present utility model;

[0040] Figure 3 Structural schematic diagram of the prestressed connection part of the present utility model;

[0041] Figure 4 Cross-sectional view of the main cable connection part of the present utility model;

[0042] Figure 5 Structural schematic diagram of the screw component of the present utility model;

[0043] Figure 6 Structural schematic diagram of the fastening component of the present utility model.

[0044] Among them, 1 - main cable connection part; 2 - prestressed connection part; 3 - strand anchor head; 4 - anchor hole; 5 - prestressed steel strand; 6 - screw component; 7 - main cable strand; 8 - cavity; 9 - accommodation bin; 10 - installation port; 11 - anchor head inlet and outlet; 12 - strand inlet and outlet; 13 - main cable through hole; 14 - limit groove; 15 - stop block; 16 - accommodation groove; 17 - spring; 18 - fastening block; 19 - first threaded hole; 20 - installation hole; 21 - prestressed steel strand anchor plate; 22 - internal thread; 23 - threaded pipe; 24 - second threaded hole; 25 - sliding groove; 26 - retaining platform; 27 - sleeve; 28 - retaining ring; 29 - strip-shaped groove; 30 - connecting rod; 31 - external thread; 32 - reducing pipe; 33 - short pipe; 34 - first circular plate; 35 - second circular plate; 36 - through hole; 37 - adjustment hole; 38 - clamping block; 39 - slide rail; 40 - handle. Specific embodiments

[0045] The following is a description of the preferred embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.

[0046] Embodiment 1,

[0047] Please refer to Figures 1 - 6 , a new type of self-anchored suspension bridge anchoring structure, including: a main cable connection part 1 and a prestressed connection part 2. The main cable connection part 1 is detachably connected to the strand anchor head 3. The prestressed connection part 2 is provided with an anchor hole 4 for anchoring the prestressed steel strand 5. A screw component 6 is arranged between the main cable connection part 1 and the prestressed connection part 2. One end of the screw component 6 is connected to the prestressed connection part 2, and the other end is connected to the main cable connection part 1. The screw component 6 is used to adjust the distance between the prestressed connection part 2 and the main cable connection part 1.

[0048] The working principle and beneficial effects of the above embodiment are as follows:

[0049] After the tensioning of the prestressed steel strand 5 is completed, concrete is filled into the prestressed steel pipe. When the concrete reaches the required strength, the prestressed steel strand 5 is connected to the main cable strand 7. During the connection, first, the main cable connection part 1 is detachably connected to the main cable strand 7, and then the prestressed connection part 2 is anchored to the prestressed steel strand 5. Secondly, a tensioning machine is used to tension the prestressed steel strand 5 and the main cable strand 7, and the screw rod assembly 6 is screwed, so that the distance between the prestressed connection part 2 and the main cable connection part 1 gradually decreases until a tightened state is reached. During the connection process, only the screw rod assembly 6 needs to be screwed to adjust the distance between the prestressed connection part 2 and the main cable connection part 1. Compared with the installation of multiple tie bolts in the traditional way, the construction on the front anchor face of the anchor body is more labor-saving and faster. At the same time, the force on a single screw rod can improve the problem of excessive local tie rod force caused by the change of the tension direction, and extend the service life of the structure.

[0050] Embodiment 2

[0051] Please refer to Figures 1 - 6 , the main cable connection part 1 includes the main cable strand 7 and the strand anchor head 3, and the strand anchor head 3 anchors the main cable strand 7;

[0052] The main cable connection part 1 further includes a cavity 8, and a receiving bin 9 is arranged in the cavity 8, and the receiving bin 9 is used to accommodate the strand anchor head 3;

[0053] One side of the receiving bin 9 is provided with an installation opening 10, and the installation opening 10 is used for the strand anchor head 3 and the main cable strand 7 to enter and exit the receiving bin 9.

[0054] The working principle and beneficial effects of the above embodiment are as follows:

[0055] When the main cable connection part 1 connects the main cable strand 7, the main cable strand 7 and the strand anchor head 3 after anchoring are put into the receiving bin 9 of the cavity 8 together from one side of the installation opening 10. As the main cable strand 7 is affected by tension, the main cable strand 7 will abut against the inner top surface of the receiving bin 9, realizing the rapid installation of the main cable strand 7 and the cavity 8.

[0056] Embodiment 3

[0057] Please refer to Figures 1 - 6 , the installation opening 10 includes an anchor head inlet / outlet 11 and a strand inlet / outlet 12. The top end of the anchor head inlet / outlet 11 is connected to the bottom end of the strand inlet / outlet 12, and the opening of the strand inlet / outlet 12 is smaller than the opening of the anchor head inlet / outlet 11;

[0058] The top end of the strand inlet / outlet 12 is open, and a main cable through hole 13 is arranged on the top surface of the cavity 8, and the main cable through hole 13 is connected to the adjacent surface of the strand inlet / outlet 12.

[0059] The working principle and beneficial effects of the above embodiment are as follows:

[0060] The opening width of the anchor head inlet / outlet 11 is greater than that of the strand inlet / outlet 12. After the strand anchor head 3 enters the accommodation bin 9, the strand anchor head 3 is pulled towards the inner top surface of the accommodation bin 9. Since the opening of the inner side of the strand inlet / outlet 12 is small, the side of the strand anchor head 3 can be clamped through it, improving the installation strength.

[0061] Example 4

[0062] Please refer to Figures 1 - 6 , a limiting groove 14 is provided on the inner top surface of the accommodation bin 9. The top surface of the limiting groove 14 communicates with the main cable through hole 13, and the diameter of the limiting groove 14 is greater than that of the main cable through hole 13;

[0063] A stop block 15 is provided inside the opening of the anchor head inlet / outlet 11, and the stop block 15 is arranged on the inner top surface of the anchor head inlet / outlet 11;

[0064] The stop block 15 has a triangular prism structure, and one of the side edges of the triangular prism structure is hinged to the inner top surface of the anchor head inlet / outlet 11;

[0065] An accommodation groove 16 is provided on the inner top surface of the anchor head inlet / outlet 11. The accommodation groove 16 is used to accommodate the stop block 15, and a spring 17 is arranged between the inner top surface of the accommodation groove 16 and the top surface of the stop block 15.

[0066] The working principle and beneficial effects of the above embodiments are as follows:

[0067] After the main cable strand 7 is tensioned, the strand anchor head 3 enters the limiting groove 14, and the strand anchor head 3 is further limited through the limiting groove 14. When the strand anchor head 3 moves towards the accommodation bin 9 at the anchor head inlet / outlet 11, the strand anchor head 3 abuts against one side of the side edge of the triangular prism structure, and continues to move to push the stop block 15 of the triangular prism structure to move towards the accommodation groove 16 around the hinge. After the strand anchor head 3 completely enters the accommodation bin 9, the strand anchor head 3 is reset under the influence of the elastic force of the spring 17, and the side wall of one side of the triangular prism structure is used to block the strand anchor head 3, preventing the strand anchor head 3 from coming out of the accommodation bin 9 before the main cable strand 7 is tensioned.

[0068] Example 5

[0069] Please refer to Figures 1 - 6 , the prestressed connection part 2 includes a fastening block 18. The fastening block 18 is provided with a first threaded hole 19 along the length direction. The first threaded hole 19 is used for the fastening block 18 to be threadedly connected to the screw rod assembly 6. One side of the fastening block 18 away from the first threaded hole 19 is provided with a mounting hole 20, and one end of the mounting hole 20 communicates with one end of the first threaded hole 19;

[0070] One side of the fastening block 18 close to the mounting hole 20 is provided with a prestressed steel strand anchor plate 21, and the prestressed steel strand anchor plate 21 is used for anchoring the prestressed steel strand 5.

[0071] The inner wall of the installation hole 20 is provided with an internal thread 22 for threadedly connecting a threaded pipe 23. One end of the threaded pipe 23 away from the installation hole 20 is arranged through a prestressed steel strand anchor plate 21. A second threaded hole 24 is arranged at the center of the prestressed steel strand anchor plate 21 for threadedly connecting the threaded pipe 23.

[0072] One end of the inner wall of the threaded pipe 23 close to the installation hole 20 is provided with a sliding groove 25. A retaining platform 26 is arranged at the bottom end of the sliding groove 25. A fastening component is slidably arranged in the sliding groove 25.

[0073] The fastening component includes a sleeve 27 and a retaining ring 28. The retaining ring 28 is sleeved on the outer wall of one end of the sleeve 27 circumferentially. The retaining ring 28 slides between the retaining platform 26 and the inner top surface of the sliding groove 25. A plurality of strip-shaped grooves 29 are arranged at one end of the sleeve 27 away from the sleeve 27. Each strip-shaped groove 29 is arranged along the length direction of the sleeve 27. Each strip-shaped groove 29 is arranged at intervals on the outer wall of the sleeve 27 circumferentially.

[0074] The screw rod assembly 6 includes a connecting rod 30. An external thread 31 is arranged on the outer wall of the middle section of the connecting rod 30 for threadedly connecting the connecting rod 30 with the installation hole 20. One end of the connecting rod 30 is connected to the bottom surface of the cavity 8, and the other end is slidably arranged in the sleeve 27.

[0075] A reducing pipe 32 is sleeved on the outer wall of one end of the connecting rod 30 away from the cavity 8. The diameter of the reducing pipe 32 gradually decreases along the length direction of the connecting rod 30. The small-diameter end of the reducing pipe 32 is arranged at one end away from the cavity 8.

[0076] The inner diameter of one end of the sleeve 27 away from the retaining ring 28 gradually decreases.

[0077] An auxiliary limiting component is arranged on the outer wall of one end of the sleeve 27 away from the retaining ring 28. The prestressed steel strand 5 passes through the auxiliary limiting component and is connected to the prestressed steel strand anchor plate 21. The auxiliary limiting component cooperates with the reducing pipe 32 to clamp the prestressed steel strand 5 between the front anchor surface and the prestressed steel strand anchor plate 21.

[0078] The auxiliary limiting component includes a short pipe 33, a first circular plate 34, and a second circular plate 35. The first circular plate 34 and the second circular plate 35 are respectively arranged on both end faces of the short pipe 33. A plurality of through holes 36 are arranged on the surfaces of the first circular plate 34 and the second circular plate 35. The through holes 36 are in pairs. One pair of through holes 36 is used for passing through the prestressed steel strand 5.

[0079] The surfaces of the first circular plate 34 and the second circular plate 35 are also provided with adjusting holes 37. A sleeve 27 is movably arranged in the adjusting hole 37. The outer wall of one end of the sleeve 27 away from the retaining ring 28 abuts against a plurality of clamping blocks 38. Each clamping block 38 is arranged in a divergent manner with the center of the second circular plate 35 as the center. Each of the clamping blocks 38 is respectively arranged in a slide rail 39. One end of the slider away from the sleeve 27 is used to abut against the prestressed steel strand 5 between the two through holes 36.

[0080] The working principle and beneficial effects of the above embodiment are as follows:

[0081] When adjusting the distance between the prestressed connection part 2 and the main cable connection part 1 by using the screw assembly 6, the fastening block 18 is fixed by using a wrench, and the connecting rod 30 is rotated. The connecting rod 30 drives the cavity 8 to rotate, and the strand anchor head 3 rotates relative to the cavity 8 in the receiving bin 9. When the connecting rod 30 rotates, it drives the fastening block 18 to move along the outer wall of the connecting rod 30 towards the cavity 8. The fastening block 18 drives the prestressed steel strand anchor plate 21 to move, so as to drive the end of the prestressed steel strand 5 towards the main cable strand 7 through the prestressed steel strand anchor plate 21, achieving the purpose of adjusting the distance between the main cable strand 7 and the prestressed steel strand 5.

[0082] At the same time, when the fastening block 18 moves along the connecting rod 30, it drives the sleeve 27 to move. When the sleeve 27 moves until the retaining ring 28 abuts against the retaining table 26, the retaining ring 28 pulls the sleeve 27 so that the sleeve 27 no longer moves towards the main cable strand 7. The bottom end of the connecting rod 30 moves downward relative to the sleeve 27. When the reduced-diameter pipe 32 on the outer wall of the bottom end of the connecting rod 30 fits with the sleeve 27, the connecting rod 30 continues to move downward. Since the bottom end of the reduced-diameter pipe 32 is thin and the upper end is thick, when the upper diameter increases and contacts the converging end of the lower end of the sleeve 27, it will expand the lower end of the sleeve 27. The strip-shaped groove 29 at the lower end of the sleeve 27 is used for the reduced-diameter pipe 32 to expand the sleeve 27. After the sleeve 27 is expanded, the clamping block 38 abutted against the bottom end of the sleeve 27 moves to the side away from the sleeve 27, so that the clamping block 38 moves towards the prestressed steel strand 5 in the slide rail 39. Along with the continuous downward movement of the connecting rod 30, the diameter of the expanded lower end of the sleeve 27 increases, and the moving distance of the clamping block 38 increases, so that the force of the clamping block 38 on one side of the prestressed steel strand 5 gradually increases, and the inner wall of the short pipe 33 abuts against the other side of the prestressed steel strand 5, thereby fixing the prestressed steel strand 5 between the front anchor face and the main cable strand 7. When the main cable strand 7 is affected by wind force or the prestressed steel strand 5 is affected by bridge vibration, causing the main cable strand 7 and the prestressed steel strand 5 to vibrate, the auxiliary limiting component can improve the problem of the vibration of the anchoring structure by tightening, and transfer the lateral torque generated by the vibration to the connecting rod 30, which can improve the problem of the connecting rod 30 falling off from the thread on the fastening block 18 caused by the vibration.

[0083] Embodiment 6

[0084] Please refer to Figures 1 - 6, a handle 40 is provided on the outer circumferential wall of the connecting rod 30 near one end of the cavity 8.

[0085] The working principle and beneficial effects of the above embodiments are as follows:

[0086] The handle 40 is used to more conveniently turn the connecting rod 30 to rotate.

[0087] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A novel anchoring structure of a self-anchored suspension bridge, characterized in that: include: A main cable connection part (1) and a prestressed connection part (2), wherein the main cable connection part (1) is detachably connected to a cable strand anchor head (3), the prestressed connection part (2) is provided with an anchor hole (4), the anchor hole (4) is used to anchor a prestressed steel strand (5), a screw assembly (6) is provided between the main cable connection part (1) and the prestressed connection part (2), one end of the screw assembly (6) is connected to the prestressed connection part (2), and the other end is connected to the main cable connection part (1), and the screw assembly (6) is used to adjust the distance between the prestressed connection part (2) and the main cable connection part (1).

2. A novel self-anchored suspension bridge anchoring structure as claimed in claim 1, characterized in that: The main cable connection part (1) comprises a main cable strand (7) and a strand anchor head (3), wherein the strand anchor head (3) is anchored to the main cable strand (7); The main cable connecting part (1) further comprises a cavity (8), wherein a receiving chamber (9) is arranged in the cavity (8), and the receiving chamber (9) is used to receive the cable strand anchor head (3); One side of the accommodating chamber (9) is provided with an installation opening (10), and the installation opening (10) is used for the cable strand anchor head (3) and the main cable strand (7) to enter and exit the accommodating chamber (9).

3. A novel self-anchored suspension bridge anchoring structure as claimed in claim 2, characterized in that: The installation opening (10) comprises an anchor head inlet and outlet (11) and a cable strand inlet and outlet (12); the top end of the anchor head inlet and outlet (11) is connected to the bottom end of the cable strand inlet and outlet (12); and the opening of the cable strand inlet and outlet (12) is smaller than the opening of the anchor head inlet and outlet (11); The top end of the cable strand inlet and outlet (12) is open, and a main cable through hole (13) is provided on the top surface of the cavity (8). The main cable through hole (13) is communicated with the adjacent surface of the cable strand inlet and outlet (12).

4. A novel self-anchored suspension bridge anchoring structure as claimed in claim 3, characterized in that: A limiting groove (14) is provided on the inner top surface of the accommodating compartment (9), the top surface of the limiting groove (14) is connected to the main cable through hole (13), and the diameter of the limiting groove (14) is greater than the diameter of the main cable through hole (13); A stopper (15) is arranged in the opening of the anchor head inlet and outlet (11), and the stopper (15) is arranged on the top surface of the anchor head inlet and outlet (11); The stopper (15) is a triangular prism structure, one side of which is hinged to the inner top surface of the anchor head inlet and outlet (11); The inner top surface of the anchor head inlet and outlet (11) is provided with a receiving groove (16), the receiving groove (16) is used to receive the stopper (15), and a spring (17) is provided between the inner top surface of the receiving groove (16) and the top surface of the stopper (15).

5. A novel self-anchored suspension bridge anchoring structure as claimed in claim 2, characterized in that: The prestressed connection part (2) comprises a fastening block (18), the fastening block (18) is provided with a first threaded hole (19) along the length direction, the first threaded hole (19) is used for the fastening block (18) to be threadedly connected to the screw assembly (6), the fastening block (18) is provided with a mounting hole (20) on a side away from the first threaded hole (19), one end of the mounting hole (20) is connected to one end of the first threaded hole (19); A prestressed steel bundle anchor plate (21) is provided on one side of the fastening block (18) close to the mounting hole (20), and the prestressed steel bundle anchor plate (21) is used for anchoring the prestressed steel bundle (5).

6. A novel self-anchored suspension bridge anchoring structure as claimed in claim 5, characterized in that: The inner wall of the mounting hole (20) is provided with an internal thread (22), and the internal thread (22) is used for threaded connection with a threaded pipe (23). One end of the threaded pipe (23) away from the mounting hole (20) passes through the prestressed steel strand anchor plate (21). A second threaded hole (24) is provided at the center of the prestressed steel strand anchor plate (21), and the second threaded hole (24) is used for threaded connection with the threaded pipe (23). A sliding groove (25) is arranged on the inner wall of one end of the threaded tube (23) close to the mounting hole (20), a stopper (26) is arranged at the bottom end of the sliding groove (25), and a fastening component is slidably arranged in the sliding groove (25).

7. A novel self-anchored suspension bridge anchoring structure as claimed in claim 6, characterized in that: The fastening assembly comprises a sleeve (27) and a retaining ring (28). The retaining ring (28) is sleeved on the circumferential outer wall of one end of the sleeve (27). The retaining ring (28) slides between the retaining platform (26) and the inner top surface of the sliding groove (25). A plurality of strip grooves (29) are arranged at one end of the sleeve (27) away from the sleeve (27). Each of the strip grooves (29) is arranged along the length direction of the sleeve (27). Each of the strip grooves (29) is arranged at intervals on the circumferential outer wall of the sleeve (27).

8. A novel self-anchored suspension bridge anchoring structure as claimed in claim 7, characterized in that: The screw assembly (6) comprises a connecting rod (30), the outer wall of the middle section of the connecting rod (30) is provided with an external thread (31), the external thread (31) is used for the connecting rod (30) to be threadedly connected to the mounting hole (20), one end of the connecting rod (30) is connected to the bottom surface of the cavity (8), and the other end is slidably arranged in the sleeve (27); A reducer (32) is sleeved on the outer wall of one end of the connecting rod (30) away from the cavity (8); the diameter of the reducer (32) gradually decreases along the length direction of the connecting rod (30); and the small diameter end of the reducer (32) is arranged away from one end of the cavity (8); The inner diameter of one end of the sleeve (27) away from the retaining ring (28) gradually decreases; An auxiliary limiting assembly is provided on the circumferential outer wall of one end of the sleeve (27) away from the retaining ring (28); the prestressed steel bundle (5) passes through the auxiliary limiting assembly to be connected to the prestressed steel bundle anchor plate (21); the auxiliary limiting assembly cooperates with the reducer (32) to clamp the prestressed steel bundle (5) between the front anchor surface and the prestressed steel bundle anchor plate (21).

9. A novel self-anchored suspension bridge anchoring structure as claimed in claim 8, characterized in that: The auxiliary limiting assembly comprises a short tube (33), a first circular plate (34), and a second circular plate (35); the first circular plate (34) and the second circular plate (35) are respectively arranged on the two end surfaces of the short tube (33); a plurality of through holes (36) are arranged on the surfaces of the first circular plate (34) and the second circular plate (35); the through holes (36) are arranged in groups of two, and a group of the through holes (36) is used to pass through the prestressed steel strand (5); The surfaces of the first circular plate (34) and the second circular plate (35) are also provided with adjustment holes (37), and a sleeve (27) is movably arranged in the adjustment hole (37). An outer wall of one end of the sleeve (27) away from the retaining ring (28) is abutted with a plurality of clamping blocks (38), and each clamping block (38) is arranged in a divergent manner with the center of the second circular plate (35) as the center. Each of the clamping blocks (38) is respectively arranged in a slide rail (39), and an end of the slide block away from the sleeve (27) is used to abut against the prestressed steel bundle (5) between the two through holes (36).

10. A novel self-anchored suspension bridge anchoring structure as claimed in claim 8, characterized in that: A handle (40) is provided on the circumferential outer wall of one end of the connecting rod (30) close to the cavity (8).

Images