Novel extradosed cable-stayed bridge structure

Abstract

The utility model discloses a novel extradosed cable-stayed bridge structure which comprises a bridge body, a plurality of Y-shaped cable bent towers are fixedly arranged on one side of the bottom end of the bridge body, a plurality of stay cables are fixedly arranged between the two sides of the Y-shaped cable bent towers and the bridge body, and anchoring structures are fixedly arranged at the joints of the Y-shaped cable bent towers and the bridge body and the stay cables respectively. According to the novel extradosed cable-stayed bridge structure, a plurality of annular clamping pieces are clamped with a plurality of annular clamping grooves in a limiting mode, so that a plurality of annular bases and a plurality of protective covers can be conveniently and preliminarily connected; a plurality of annular seats and a plurality of protective covers can be further fixedly connected conveniently through limiting and clamping of a plurality of limiting elastic pieces and a plurality of limiting grooves, and sealing treatment can be conveniently conducted on the connecting positions of a plurality of stay cables and a plurality of anchoring structures through matched arrangement of the annular seats and the protective covers; and the connecting part of the stay cable and the anchoring structure is prevented from being exposed outside for a long time and easily damaged.

Description

Technical Field

[0001] The utility model relates to the field of low tower cable-stayed bridges, and particularly to a novel structure of a low tower cable-stayed bridge. Background Technique

[0002] Due to the arrangement of stay cables, the low tower cable-stayed bridge reduces the load borne by the main girder, so the scale of the superstructure can be reduced, its self-weight can be decreased, or the structural span can be increased. It is a commonly used bridge type for medium and large-span bridges and is widely applied. The low tower cable-stayed bridge often has a single tower at the pier top, which is arranged in the median strip of the upper and lower lanes to reduce the impact on the traffic lane. However, the connection between the stay cables and the anchoring structure on the existing low tower cable-stayed bridge is exposed for a long time, and thus is vulnerable to damage, which affects its service life.

[0003] To solve the above problems, a novel structure of a low tower cable-stayed bridge is proposed herein. Content of the Utility Model

[0004] The purpose of the utility model is to provide a novel structure of a low tower cable-stayed bridge to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A novel structure of a low tower cable-stayed bridge, including a bridge body. On one side of the bottom end of the bridge body, a number of Y-shaped cable towers are fixedly arranged. On both sides of the number of Y-shaped cable towers and the bridge body, a number of stay cables are fixedly arranged. At the connection between the number of Y-shaped cable towers and the bridge body and the number of stay cables respectively, an anchoring structure is fixedly arranged. At the connection between the number of anchoring structures and the number of stay cables respectively, an annular seat is fixedly arranged. On the surface of the number of annular seats, a protective cover is snap-fitted. In the middle of the number of protective covers, an installation groove is opened. The number of installation grooves is respectively arranged corresponding to the number of stay cables. Inside the number of installation grooves, a sealing ring is fixedly arranged.

[0006] The initial connection between the number of annular seats and the number of protective covers is facilitated by the limit snap-fitting of a number of annular fasteners and a number of annular slots respectively. The further fixed connection between the number of annular seats and the number of protective covers is facilitated by the limit snap-fitting of a number of limiting elastic pieces and a number of limiting grooves respectively. The cooperation setting of the number of annular seats and the number of protective covers is convenient for sealing the connection between the number of stay cables and the number of anchoring structures, avoiding the connection between the stay cables and the anchoring structures being exposed for a long time and thus being vulnerable to damage.

[0007] Preferably, annular grooves are formed at the joints between several of the annular seats and several of the protective covers. Annular clamping members are respectively arranged inside the several annular grooves in a clamped manner. The several annular clamping members are respectively fixedly connected with the several protective covers. The initial connection between the several annular seats and the several protective covers is facilitated by the limiting clamping of the several annular clamping members with the several annular grooves.

[0008] Preferably, placement grooves are formed on both sides of the several annular clamping members. Limiting elastic pieces are respectively fixedly arranged inside the several placement grooves. Limiting grooves are formed on both sides of the inner walls of the several annular grooves. The several limiting elastic pieces are respectively connected with the several limiting grooves in a clamped manner. The further fixed connection between the several annular seats and the several protective covers is facilitated by the limiting clamping of the several limiting elastic pieces with the several limiting grooves.

[0009] Preferably, guardrails are respectively fixedly arranged on both sides of the top end of the bridge body. Both of the two guardrails include several support columns. Handrails are fixedly arranged at the top between the several support columns. Several reinforcing rods are fixedly connected to the bottom end of the handrails. The setting of the two guardrails can play a protective role.

[0010] Preferably, piers are respectively fixedly connected to the bottom ends of the several Y-shaped pylons. Several bridge piles are respectively fixedly connected to the bottom ends of the several piers. The setting of the several piers and the several bridge piles facilitates the stable support of the bridge body.

[0011] Preferably, a foundation stone is fixedly arranged on one side of the bottom end of the bridge body. A support frame is fixedly arranged at the joint between the foundation stone and the bridge body. The stable support of one end of the bridge body is facilitated by the combined setting of the foundation stone and the support frame.

[0012] Preferably, several steel profiles are fixedly arranged on the side of the bottom end of the bridge body away from the foundation stone. Several steel pipe piles are respectively arranged at the bottom ends of the several steel profiles. The stable support of the other end of the bridge body is facilitated by the combined setting of the several steel profiles and the several steel pipe piles.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] The initial connection between the several annular seats and the several protective covers is facilitated by the limiting clamping of the several annular clamping members with the several annular grooves. The further fixed connection between the several annular seats and the several protective covers is facilitated by the limiting clamping of the several limiting elastic pieces with the several limiting grooves. The sealing treatment of the joints between the several stay cables and the several anchoring structures is facilitated by the combined setting of the several annular seats and the several protective covers, avoiding the joints between the stay cables and the anchoring structures from being exposed for a long time and thus being easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the front view of the present utility model;

[0016] Figure 2 is the structural diagram of the guardrail of the present utility model;

[0017] Figure 3 is the cross-sectional view of the partial structure of the present utility model;

[0018] Figure 4 is the enlarged view of partial A of the present utility model.

[0019] In the figure: 1, bridge body; 2, foundation stone; 3, support frame; 4, section steel; 5, steel pipe pile; 6, Y-shaped cable tower; 7, bridge pier; 8, bridge pile; 9, anchoring structure; 10, stay cable; 11, guardrail; 111, pillar; 112, handrail; 113, reinforcing bar; 12, annular seat; 13, protective cover; 14, installation groove; 15, sealing ring; 16, placement groove; 17, limiting elastic piece; 18, limiting groove; 19, annular clamping groove; 20, annular clamping part. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0021] Please refer to Figures 1-4 , the present utility model provides a novel low tower cable-stayed bridge structure, including a bridge body 1, and a plurality of Y-shaped cable towers 6 are fixedly arranged on one side of the bottom end of the bridge body 1. A plurality of stay cables 10 are fixedly arranged between both sides of the plurality of Y-shaped cable towers 6 and the bridge body 1. Anchoring structures 9 are fixedly arranged at the joints of the plurality of Y-shaped cable towers 6 and the bridge body 1 with the plurality of stay cables 10 respectively. Annular seats 12 are fixedly arranged at the joints of the plurality of anchoring structures 9 and the plurality of stay cables 10 respectively. Protective covers 13 are snap-fitted on the surfaces of the plurality of annular seats 12. Installation grooves 14 are respectively opened in the middle of the plurality of protective covers 13. The plurality of installation grooves 14 are respectively arranged corresponding to the plurality of stay cables 10. Sealing rings 15 are fixedly arranged on the inner sides of the plurality of installation grooves 14. The preliminary connection of the plurality of annular seats 12 and the plurality of protective covers 13 is facilitated by the limiting engagement of the plurality of annular clamping parts 20 with the plurality of annular clamping grooves 19 respectively. The further fixed connection of the plurality of annular seats 12 and the plurality of protective covers 13 is facilitated by the limiting engagement of the plurality of limiting elastic pieces 17 with the plurality of limiting grooves 18 respectively. The cooperation of the plurality of annular seats 12 and the plurality of protective covers 13 facilitates the sealing treatment of the joints of the plurality of stay cables 10 and the plurality of anchoring structures 9, and avoids the joints of the stay cables 10 and the anchoring structures 9 being exposed for a long time and thus being easily damaged.

[0022] A plurality of annular seats 12 are respectively provided with annular card slots 19 at the joints with a plurality of protective covers 13. Annular fasteners 20 are respectively and detachably arranged inside the plurality of annular card slots 19. The plurality of annular fasteners 20 are respectively fixedly connected to the plurality of protective covers 13. Placement grooves 16 are respectively provided on both sides of the plurality of annular fasteners 20. Limiting elastic pieces 17 are respectively and fixedly arranged inside the plurality of placement grooves 16. Limiting grooves 18 are respectively provided on both sides of the inner walls of the plurality of annular card slots 19. The plurality of limiting elastic pieces 17 are respectively engaged and connected with the plurality of limiting grooves 18. Protective fences 11 are respectively and fixedly arranged on both sides of the top end of the bridge body 1. Both of the two protective fences 11 include a plurality of columns 111. A handrail 112 is fixedly arranged at the top between the plurality of columns 111. A plurality of reinforcing bars 113 are fixedly connected to the bottom end of the handrail 112;

[0023] During use, the initial connection of the plurality of annular seats 12 and the plurality of protective covers 13 is facilitated by the limiting engagement of the plurality of annular fasteners 20 with the plurality of annular card slots 19. The further fixed connection of the plurality of annular seats 12 and the plurality of protective covers 13 is facilitated by the limiting engagement of the plurality of limiting elastic pieces 17 with the plurality of limiting grooves 18. The protective effect can be achieved through the arrangement of the two protective fences 11;

[0024] The bottom ends of a plurality of Y-shaped pylons 6 are respectively fixedly connected to bridge piers 7. The bottom ends of the plurality of bridge piers 7 are respectively fixedly connected to a plurality of bridge piles 8. A foundation stone 2 is fixedly arranged on one side of the bottom end of the bridge body 1. A support frame 3 is fixedly arranged at the connection between the foundation stone 2 and the bridge body 1. A plurality of profiled steels 4 are fixedly arranged on the side of the bottom end of the bridge body 1 away from the foundation stone 2. A plurality of steel pipe piles 5 are respectively arranged at the bottom ends of the plurality of profiled steels 4;

[0025] During use, the stable support of the bridge body 1 is facilitated by the arrangement of the plurality of bridge piers 7 and the plurality of bridge piles 8. The stable support of one end of the bridge body 1 is facilitated by the combined arrangement of the foundation stone 2 and the support frame 3. The stable support of the other end of the bridge body 1 is facilitated by the combined arrangement of the plurality of profiled steels 4 and the plurality of steel pipe piles 5.

[0026] When the embodiment of the present application is in use: the initial connection of the plurality of annular seats 12 and the plurality of protective covers 13 is facilitated by the limiting engagement of the plurality of annular fasteners 20 with the plurality of annular card slots 19. The further fixed connection of the plurality of annular seats 12 and the plurality of protective covers 13 is facilitated by the limiting engagement of the plurality of limiting elastic pieces 17 with the plurality of limiting grooves 18. The connection between the plurality of stay cables 10 and the plurality of anchoring structures 9 is hermetically treated through the combined arrangement of the plurality of annular seats 12 and the plurality of protective covers 13, avoiding the long-term exposure of the connection between the stay cables 10 and the anchoring structures 9 and thus being vulnerable to damage.

[0027] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel low-tower cable-stayed bridge structure, comprising a bridge body (1), characterized in that: A plurality of Y-shaped cable towers (6) are fixedly arranged on one side of the bottom end of the bridge body (1); a plurality of inclined cables (10) are fixedly arranged between the two sides of the plurality of Y-shaped cable towers (6) and the bridge body (1); anchoring structures (9) are fixedly arranged at the connection points between the plurality of Y-shaped cable towers (6) and the bridge body (1) and the plurality of inclined cables (10); annular seats (12) are fixedly arranged at the connection points between the plurality of anchoring structures (9) and the plurality of inclined cables (10); protective covers (13) are snap-fitted on the surfaces of the plurality of annular seats (12); mounting grooves (14) are provided in the middle of the plurality of protective covers (13); the plurality of mounting grooves (14) are respectively arranged corresponding to the plurality of inclined cables (10); and sealing rings (15) are fixedly arranged on the inner sides of the plurality of mounting grooves (14).

2. The novel low-tower cable-stayed bridge structure according to claim 1 is characterized in that: Annular grooves (19) are provided at the connection points between the plurality of annular seats (12) and the plurality of protective covers (13), annular clamping members (20) are clamped inside the plurality of annular grooves (19), and the plurality of annular clamping members (20) are fixedly connected to the plurality of protective covers (13).

3. The novel low-tower cable-stayed bridge structure according to claim 2 is characterized by: Both sides of the plurality of annular clamping members (20) are provided with placement grooves (16), and limiting spring sheets (17) are fixedly arranged inside the plurality of placement grooves (16). Both sides of the inner walls of the plurality of annular clamping grooves (19) are provided with limiting grooves (18), and the plurality of limiting spring sheets (17) are respectively engaged and connected with the plurality of limiting grooves (18).

4. The novel low-tower cable-stayed bridge structure according to claim 1 is characterized by: Guardrails (11) are fixedly arranged on both sides of the top of the bridge body (1), and the two guardrails (11) each include a plurality of pillars (111). A handrail (112) is fixedly arranged on the top between the plurality of pillars (111), and a plurality of reinforcing rods (113) are fixedly connected to the bottom end of the handrail (112).

5. The novel low-tower cable-stayed bridge structure according to claim 1 is characterized in that: The bottom ends of the plurality of Y-shaped cable towers (6) are fixedly connected to bridge piers (7), and the bottom ends of the plurality of bridge piers (7) are fixedly connected to a plurality of bridge piles (8).

6. The novel low-tower cable-stayed bridge structure according to claim 1 is characterized by: A foundation stone (2) is fixedly provided on one side of the bottom end of the bridge body (1), and a support frame (3) is fixedly provided at the connection between the foundation stone (2) and the bridge body (1).

7. The novel low-tower cable-stayed bridge structure according to claim 6 is characterized by: A plurality of steel sections (4) are fixedly arranged on a side of the bottom end of the bridge body (1) away from the foundation stone (2), and a plurality of steel pipe piles (5) are arranged at the bottom ends of the plurality of steel sections (4).

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