Bridge long-life anticorrosion cable structure

By installing outer sleeves and rain covers on the bridge cables, combined with fastening rings and concrete fixation, the problems of easy corrosion of cables and loosening of joints were solved, achieving a long service life and safe bridge connection.

CN115787470BActive Publication Date: 2026-05-05JINAN JINYUE HIGHWAY ENGINEERING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JINAN JINYUE HIGHWAY ENGINEERING CO LTD
Filing Date
2022-12-16
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Bridge cables are prone to corrosion and joints can loosen due to vibration, affecting their service life and safety.

Method used

The cable body is fitted with a first outer sleeve and a second outer sleeve, which are fixed by components such as fastening rings, support plates, rotating shafts, and sleeves. A rain cover is installed at the connection point, and the concrete body is used for stable connection to prevent corrosion and vibration loosening.

Benefits of technology

This improved the corrosion resistance and vibration resistance of the cables, extended their service life, and ensured the safety and stability of the bridge.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a long-life, corrosion-resistant cable structure for bridges, relating to the field of bridge technology. The structure includes a bridge base with fixed boxes fixedly connected to both sides of the base. A first connecting anchor head is located inside the top of one fixed box, and a first outer sleeve is fixedly connected to the top of the first connecting anchor head. A first fastening ring is located on the outer wall of the first outer sleeve, and a first drilled hole is located in the middle of the first connecting anchor head. A second connecting anchor head is located inside the top of the other fixed box, and a second outer sleeve is fixedly connected to the top of the second connecting anchor head. A second fastening ring is located on the outer wall of the second outer sleeve, and a second drilled hole is located in the middle of the second connecting anchor head. By connecting the outer sleeves and fixing the bottom angle, the cable is less prone to breakage and movement, ensuring the safety of the bridge.
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Description

Technical Field

[0001] This invention relates to the field of bridge technology, specifically to a long-life, corrosion-resistant cable structure for bridges. Background Technology

[0002] A bridge, generally speaking, refers to a structure erected over rivers, lakes, or seas to allow vehicles and pedestrians to pass smoothly. To adapt to the modern, rapidly developing transportation industry, the term "bridge" has also been extended to refer to structures built across mountains, streams, adverse geological conditions, or to meet other transportation needs, making travel more convenient. A bridge generally consists of a superstructure, substructure, supports, and ancillary structures. The superstructure, also known as the bridge span structure, is the main structure that crosses obstacles. The substructure includes abutments, piers, and foundations. Supports are force-transmitting devices installed at the support points of the bridge span structure and piers or abutments. Ancillary structures refer to bridge approach slabs, tapered slopes, revetments, and diversion works, etc. Bridge cables are the most important load-bearing components supporting the bridge; they are the lifeline of the bridge, and their durability and reliability directly affect the safe operation and service life of the bridge.

[0003] Bridge cables are the lifeline of a bridge. If the cables are corroded, their service life will be shortened. If they break, it will cause the bridge to collapse, thus affecting the safety of the bridge. In addition, the connection joints of bridge cables may loosen due to vibration, causing the cables to move and the cable support to not achieve the best effect. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a long-life, corrosion-resistant cable structure for bridges, solving the problems of easy corrosion of bridge cables and loosening of joints due to vibration.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a long-life, corrosion-resistant cable structure for bridges, comprising a bridge base, wherein fixed boxes are fixedly connected to both sides of the bridge base, a first connecting anchor head is provided inside the top of one fixed box, a first outer sleeve is fixedly connected inside the top of the first connecting anchor head, a first fastening ring is provided on the outer wall of the first outer sleeve, and a first drilled hole is provided inside the middle of the first connecting anchor head; a second connecting anchor head is provided inside the top of the other fixed box, a second outer sleeve is fixedly connected inside the top of the second connecting anchor head, a second fastening ring is provided on the outer wall of the second outer sleeve, and a second drilled hole is provided inside the middle of the second connecting anchor head.

[0006] Preferably, the bottom outer walls of both the first connecting anchor head and the second connecting anchor head are fixedly connected to a concrete body, and the outer walls of the concrete body are fixedly connected to the inner wall of the fixed box.

[0007] Preferably, the first and second drill holes are both threaded with a second threaded rod, and the outer walls of the second threaded rod are both threaded with a second support plate. The two second support plates on opposite sides are provided with a second fastener, and the inner walls of the second fasteners are threaded with the outer walls of the second threaded rod.

[0008] Preferably, the bottom of the outer walls of the first outer tube and the second outer tube are both fixedly connected to a first rain cover, and the bottom of the inner walls of the first rain cover on both sides are respectively fixedly connected to the top of the outer walls of the first connecting anchor and the second connecting anchor.

[0009] Preferably, a connecting block is fixedly connected to the side of the first fastening ring and the second fastening ring that are close to each other. A first support plate is fixedly connected to both the front and rear sides of the side of the connecting block that is close to each other. A rotating shaft is rotatably connected to the middle of the first support plate on both sides. A limit block is fixedly connected to the side of the rotating shaft that is far away from each other. The outer periphery of the side of the limit block that is close to each other is set on the side of the first support plate that is far away from each other. A sleeve is fixedly connected to the outer wall of the rotating shaft. A connecting plate is fixedly connected to the side of the sleeve that is close to each other.

[0010] Preferably, fastening plates are fixedly connected to both the front and rear sides of the first fastening ring and the second fastening ring on the side away from each other. The upper and lower sides of the fastening plate are threaded with first threaded rods. The front and rear sides of the outer wall of the first threaded rods are threaded with first fasteners. The first fasteners on both sides are located on the side away from each other on the fastening plate.

[0011] Preferably, a second rain cover is provided on both sides of the top of the bridge base, and the top of the second rain cover on both sides is fixedly connected to the outer wall of the first connecting anchor and the second connecting anchor respectively. The second rain cover is arched.

[0012] Preferably, both the first outer tube and the second outer tube are provided with evenly distributed cable bodies inside.

[0013] Working Principle: After the main cable is secured, its outer wall is encased in a first and second outer sleeve. Both the first and second outer sleeves are secured by a first and a second fastening ring. The outer walls of the first and second outer sleeves are tightly connected and fixed by a fastening plate, a first threaded rod, and a first fastener on the side furthest from each other. Additionally, connecting blocks are provided on the side of the first and second outer sleeves that are close together. A rotating shaft is provided on the side of the connecting blocks that are close together via a first support plate. The two ends of the rotating shaft engage with limiting blocks to fix the position, preventing it from loosening or falling off due to rotation. The outer walls of the two rotating shafts are connected to the connecting plate via sleeves, allowing the first and second outer sleeves to connect. When the angle of the first and second outer sleeves is adjusted, the rotating shaft can rotate without breaking the connection between the first and second outer sleeves, allowing for angle adjustment. Furthermore, the cable can be fixed in position even when the bridge vibrates. The device will not move. After adjustment, the bottom of the first outer sleeve is connected to the first connecting anchor head, and the bottom of the second outer sleeve is connected to the second connecting anchor head. The bottoms of the first and second connecting anchor heads are connected by the concrete body poured into the fixed box inside the bridge base. The middle part above the fixed box is connected and fixed by the second threaded rods that are connected to the second support plates on both sides through the first and second drill holes. The position is then fixed by the second fasteners, so that the bottoms of the first and second connecting anchor heads can be stably fixed and will not move. The outer walls of the connection points of the first and second outer sleeves and the first and second connecting anchor heads are all equipped with first rainproof covers. The tops of the fastening devices at the bottoms of the first and second connecting anchor heads are also equipped with second rainproof covers to prevent rainwater from entering and corroding the internal structure of the device. This makes the device highly corrosion resistant, has a long service life, and achieves the best shock absorption effect, thereby ensuring the safety of the bridge.

[0014] This invention provides a long-life, corrosion-resistant cable structure for bridges. It has the following advantages:

[0015] 1. This invention sets the main body of the cable inside the first outer sleeve and the second outer sleeve, and the first connecting anchor and the second connecting anchor at the bottom are fixed by the concrete main body inside the fixed box inside the bridge base. In addition, the first rainproof cover and the second rainproof cover are set at the external connection to isolate rainwater, so that the cable is not easily corroded and the service life of the cable is extended, thus preventing the bridge from breaking and collapsing. This achieves the effect of ensuring the safety of the bridge.

[0016] 2. The present invention achieves secondary fixation by combining the first and second drilled holes inside the first and second connecting anchor heads on both sides with the second threaded rod, the second support plate, and the second fastener. Furthermore, the first fastening ring on the outer wall of the first outer sleeve and the second fastening ring on the outer wall of the second outer sleeve are connected to the connecting block, the first support plate, the rotating shaft, the sleeve, and the connecting plate, so that the bridge cable connection joint will not loosen or move due to vibration, thereby achieving a reliable cable support effect. Attached Figure Description

[0017] Figure 1 This is a front perspective view of the present invention;

[0018] Figure 2 This is a side view of the present invention;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4 This is a front perspective view of the connection structure of the present invention;

[0021] Figure 5 This is a partial cross-sectional schematic diagram of the cable outer sleeve structure of the present invention;

[0022] Figure 6 for Figure 3 Enlarged view of point A in the middle.

[0023] The components are as follows: 1. First outer sleeve; 2. First fastening ring; 3. Connecting block; 4. First support plate; 5. Limiting block; 6. Connecting plate; 7. Sleeve; 8. Cable body; 9. Second outer sleeve; 10. First rain cover; 11. First connecting anchor head; 12. First threaded rod; 13. Second fastening ring; 14. Bridge base; 15. Second rain cover; 16. Fastening plate; 17. First fastener; 18. Rotating shaft; 19. Second threaded rod; 20. Second support plate; 21. Second fastener; 22. First borehole; 23. Concrete body; 24. Fixed box; 25. Second borehole; 26. Second connecting anchor head. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example:

[0026] like Figure 1-6As shown, this embodiment of the invention provides a long-life, corrosion-resistant cable structure for bridges, including a bridge base 14. Fixed boxes 24 are fixedly connected to both sides of the bridge base 14. A first connecting anchor head 11 is provided inside the top of one fixed box 24, and a first outer sleeve 1 is fixedly connected inside the top of the first connecting anchor head 11. A first fastening ring 2 is provided on the outer wall of the first outer sleeve 1, and a first drilled hole 22 is provided inside the middle of the first connecting anchor head 11. A second connecting anchor head 26 is provided inside the top of the other fixed box 24, and a second outer sleeve 9 is fixedly connected inside the top of the second connecting anchor head 26. A second fastening ring 13 is provided on the outer wall of the second outer sleeve 9, and a second drilled hole 25 is provided inside the middle of the second connecting anchor head 26. The fixed boxes 24 inside the bridge base 14 are used to fix the positions of the first connecting anchor head 11 and the second connecting anchor head 26. The first outer sleeve 1 and the second outer sleeve 9 are fitted together by the first fastening ring 2 and the second fastening ring 13 to facilitate the connection between the first outer sleeve 1 and the second outer sleeve 9.

[0027] The bottom outer walls of the first connecting anchor head 11 and the second connecting anchor head 26 are both fixedly connected to a concrete body 23. The outer walls of the concrete body 23 are both fixedly connected to the inner wall of the fixed box 24. By pouring concrete body 23 into the fixed box 24 at the bottom of the first connecting anchor head 11 and the second connecting anchor head 26, the position of the concrete body 23 can be fixed.

[0028] Both the first drill hole 22 and the second drill hole 25 are threaded with a second threaded rod 19. The outer walls of the second threaded rod 19 are threaded with second support plates 20 on both sides. The two second support plates 20 are provided with second fasteners 21 on the side away from each other. The inner walls of the second fasteners 21 are threaded with the outer walls of the second threaded rod 19. By setting the combination of the second threaded rod 19, the second support plates 20, and the second fasteners 21, the first connecting anchor head 11 and the second connecting anchor head 26 can be fixed a second time, thereby achieving a more stable effect.

[0029] The bottom of the outer walls of the first outer tube 1 and the second outer tube 9 are both fixedly connected to the first rain cover 10. The bottom of the inner walls of the first rain cover 10 on both sides are respectively fixedly connected to the top of the outer walls of the first connecting anchor 11 and the second connecting anchor 26. By setting the first rain cover 10 at the connection, rainwater will not seep into the connection and cause the cable to corrode and affect the effect.

[0030] A connecting block 3 is fixedly connected to the side of the first fastening ring 2 and the second fastening ring 13 that are close to each other. A first support plate 4 is fixedly connected to both the front and rear sides of the side of the connecting block 3 that are close to each other. A rotating shaft 18 is rotatably connected to the middle of the first support plate 4 on both sides. A limit block 5 is fixedly connected to the side of the rotating shaft 18 that is far away from each other. The outer periphery of the side of the limit block 5 that is close to each other is set on the side of the first support plate 4 that is far away from each other. A sleeve 7 is fixedly connected to the outer wall of the rotating shaft 18. A connecting plate 6 is fixedly connected to the side of the sleeve 7 that is close to each other. A connecting block 3 is provided on the side of the first fastening ring 2 and the second fastening ring 13 that are close to each other. A rotating shaft 18 is set on one side of the connecting block 3 via the first support plate 4. The two ends of the rotating shaft 18 are connected to the limiting block 5 to fix the position, so that it will not loosen or fall off due to rotation. The outer walls of the two rotating shafts 18 are connected to the connecting plate 6 via the sleeve 7, so that the first outer sleeve 1 and the second outer sleeve 9 can be connected. When the angle of the first outer sleeve 1 and the second outer sleeve 9 is adjusted, the rotating shaft 18 can rotate. The connection between the first outer sleeve 1 and the second outer sleeve 9 will not be broken and the angle can be adjusted. In addition, when the bridge vibrates, the position can be fixed so that the cable will not move.

[0031] Fastening plates 16 are fixedly connected to the front and rear sides of the first fastening ring 2 and the second fastening ring 13 on the side away from each other. The upper and lower sides of the fastening plate 16 are threaded with first threaded rods 12. The front and rear sides of the outer wall of the first threaded rods 12 are threaded with first fasteners 17. The first fasteners 17 on the side closer to each other are set on the side away from the fastening plate 16. The combination of fastening plates 16, first threaded rods 12 and first fasteners 17 on the first fastening ring 2 and the second fastening ring 13 can tightly fit and fix the first outer sleeve 1 and the second outer sleeve 9.

[0032] A second rain cover 15 is provided on both sides of the top of the bridge base 14. The top of the second rain cover 15 on both sides is fixedly connected to the outer wall of the first connecting anchor 11 and the second connecting anchor 26 respectively. The second rain cover 15 is arched. By setting the second rain cover 15, rainwater can be isolated from the internal device, so that the bridge support effect will not be affected by bottom corrosion.

[0033] Both the first outer tube 1 and the second outer tube 9 are provided with evenly distributed cable bodies 8. By placing the cable bodies 8 inside the first outer tube 1 and the second outer tube 9, the cable bodies 8 can be protected, making them corrosion-resistant and with a longer service life.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long-life, corrosion-resistant cable structure for bridges, comprising a bridge base (14), characterized in that: The bridge base (14) has fixed boxes (24) fixedly connected to both sides inside. A first connecting anchor (11) is provided inside the top of the fixed box (24) on one side. A first outer sleeve (1) is fixedly connected inside the top of the first connecting anchor (11). A first fastening ring (2) is provided on the outer wall of the first outer sleeve (1). A first drill hole (22) is provided inside the middle of the first connecting anchor (11). A second connecting anchor (26) is provided inside the top of the fixed box (24) on the other side. A second outer sleeve (9) is fixedly connected inside the top of the second connecting anchor (26). A second fastening ring (13) is provided on the outer wall of the second outer sleeve (9). A second drill hole (25) is provided inside the middle of the second connecting anchor (26). The bottom outer walls of the first connecting anchor (11) and the second connecting anchor (26) are both fixedly connected to a concrete body (23), and the outer walls of the concrete body (23) are both fixedly connected to the inner wall of the fixed box (24); The first drill hole (22) and the second drill hole (25) are both threaded with a second threaded rod (19). The outer walls of the second threaded rod (19) are both threaded with a second support plate (20). The two sides of the second support plate (20) are both provided with a second fastener (21) on the side away from each other. The inner walls of the second fastener (21) are all threaded with the outer walls of the second threaded rod (19). The bottom of the outer walls of the first outer tube (1) and the second outer tube (9) are both fixedly connected to the first rain cover (10), and the bottom of the inner walls of the first rain cover (10) on both sides are respectively fixedly connected to the top of the outer walls of the first connecting anchor (11) and the second connecting anchor (26); The bridge base (14) is provided with a second rain cover (15) on both sides of the top. The top of the second rain cover (15) on both sides is fixedly connected to the outer wall of the first connecting anchor (11) and the second connecting anchor (26) respectively. The second rain cover (15) is arched.

2. The long-life, corrosion-resistant cable structure for bridges according to claim 1, characterized in that: A connecting block (3) is fixedly connected to the first fastening ring (2) and the second fastening ring (13) on the side close to each other. A first support plate (4) is fixedly connected to the front and back sides of the connecting block (3) on the side close to each other. A rotating shaft (18) is rotatably connected to the middle of the first support plate (4) on both sides. A limit block (5) is fixedly connected to the side of the rotating shaft (18) on both sides away from each other. The outer periphery of the limit block (5) on the side close to each other is set on the side of the first support plate (4) away from each other. A sleeve (7) is fixedly connected to the outer wall of the rotating shaft (18). A connecting plate (6) is fixedly connected to the side of the sleeve (7) close to each other.

3. The long-life, corrosion-resistant cable structure for bridges according to claim 1, characterized in that: The first fastening ring (2) and the second fastening ring (13) are fixedly connected to fastening plates (16) on the front and back sides of the side away from each other. The fastening plates (16) are threaded to the upper and lower sides of the inside. The first threaded rods (12) are threaded to the front and back sides of the outer wall of the first threaded rods (12). The first fasteners (17) on both sides are set on the side away from each other on the fastening plates (16) on the side closer to each other.

4. The long-life, corrosion-resistant cable structure for bridges according to claim 1, characterized in that: Both the first outer tube (1) and the second outer tube (9) are provided with evenly distributed cable bodies (8).

Citation Information

Patent Citations

  • Steel anchor plate type cable-girder anchorage structure used for cable-stayed bridge concrete girder

    CN108660911A

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