Cable-beam connecting and anchoring device for extradosed cable-stayed bridge

Abstract

The utility model relates to the technical field of bridge cable anchoring devices, in particular to an extradosed cable-stayed bridge cable beam connecting and anchoring device which effectively improves stress area, improves stability and prolongs service life and comprises a main beam, a cross beam arranged on the main beam, a main anchor box installed on the cross beam and an anchorage wing plate arranged on the outer wall of the top of the main anchor box. A plurality of reinforcing bolts are arranged on the anchorage wing plate, a dispersing anchor box is arranged at the bottom of the anchorage wing plate, an anchorage plate is arranged at the bottom end of the dispersing anchor box, a plurality of stay cables are installed in the main anchor box, an anchorage device is installed at the bottom end of each stay cable, a fixing block is arranged in the main anchor box, and a connecting block is arranged between the fixing block and the main anchor box. A plurality of through holes are formed in the fixing block, each stay cable penetrates through the anchorage plate, the anchorage device is installed on the outer side of the anchorage plate, the stay cables penetrate through the connecting block, the anchorage wing plate and the cross beam from the interiors of the through holes and are connected through reinforcing bolts, and the dispersing anchor box is arranged in an expanding mode from the top to the bottom.

Description

Technical Field

[0001] This utility model relates to the technical field of bridge cable anchoring devices, specifically to an anchoring device for cable-stayed bridge cables with low towers. Background Technology

[0002] As is well known, in the existing technology, the stay cables of low-tower cable-stayed bridges are connected to the concrete beams by the traditional steel bar anchoring method, which is a rigid connection. During the later operation of the bridge, the stay cables will be subjected to wind or bridge deck vibration, which will cause vibration. The elastic deformation can only be reduced by the prestress of the stay cables themselves.

[0003] A search of the cable-stayed bridge ... Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides an anchoring device for cable-stayed bridge cables with low towers, which increases the stress-bearing area, enhances stability, and extends service life.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a cable-stayed bridge cable-stayed beam connection and anchoring device for a low-tower bridge, comprising a main beam, a crossbeam on the main beam, a main anchor box installed on the crossbeam, an anchor wing plate on the outer wall of the top of the main anchor box, several reinforcing bolts on the anchor wing plate, a distributed anchor box at the bottom of the anchor wing plate, an anchor plate at the bottom end of the distributed anchor box, several stay cables installed inside the main anchor box, an anchor installed at the bottom end of each stay cable, a fixing block inside the main anchor box, a connecting block between the fixing block and the main anchor box, and several through holes on the fixing block.

[0008] Furthermore, each of the aforementioned stay cables passes through an anchor plate, and the anchor is installed on the outside of the anchor plate.

[0009] Furthermore, the stay cable passes through the connecting block via the through hole.

[0010] Furthermore, the anchor flange and the crossbeam are connected by reinforcing bolts.

[0011] Furthermore, the dispersed anchor boxes are arranged in an expanding manner from top to bottom.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides an anchoring device for cable-stayed bridge cables with low towers, which has the following advantages:

[0014] This type of cable-stayed bridge cable-stayed beam connection anchorage device uses dispersed anchor boxes, fixing blocks, and anchor plates to disperse and fix the cable stays through anchorages and anchor plates, thereby effectively increasing the fixed force-bearing area of ​​the cable stays, effectively increasing stability, and increasing the service life of this type of cable-stayed bridge cable-stayed beam connection anchorage device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a side sectional view of the present invention.

[0018] Figure 4 This is a three-dimensional structural diagram of the fixing block of this utility model.

[0019] In the diagram: 1. Main beam; 2. Crossbeam; 3. Main anchor box; 4. Anchor wing plate; 5. Reinforcing bolt; 6. Distributed anchor box; 7. Stay cable; 8. Anchor; 9. Fixing block; 10. Connecting block; 11. Through hole; 12. Anchor plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This utility model discloses an anchoring device for cable-stayed bridge cables with low towers, comprising a main beam 1, a crossbeam 2 mounted on the main beam 1, a main anchor box 3 mounted on the crossbeam 2, an anchor wing plate 4 mounted on the outer wall of the top of the main anchor box 3, the anchor wing plate 4 and the crossbeam 2 being connected by reinforcing bolts 5, several reinforcing bolts 5 being mounted on the anchor wing plate 4, and a distribution anchor box 6 being mounted at the bottom of the anchor wing plate 4, the distribution anchor box 6 expanding from the top to the bottom to effectively increase the distribution surface of the cable stays 7. An anchor plate 12 is provided at the bottom of the distributed anchor box 6. Each stay cable 7 passes through the anchor plate 12. Anchors 8 are installed on the outside of the anchor plate 12. Several stay cables 7 are installed inside the main anchor box 3. An anchor 8 is installed at the bottom of each stay cable 7. A fixing block 9 is provided inside the main anchor box 3. A connecting block 10 is provided between the fixing block 9 and the main anchor box 3. Several through holes 11 are provided on the fixing block 9. The stay cables 7 pass through the connecting block 10 through the through holes 11.

[0022] Anchor 8 is a conventional device known to those skilled in the art and available on the market. In this patent, we are simply using it without making any improvements to its structure or function. For those skilled in the art, the installation method can be performed by following the instructions for use, and will not be described in detail here.

[0023] In summary, this cable-stayed bridge cable-stayed beam connection anchoring device, when in use, fixes the anchor plate 4 to the crossbeam 2 with reinforcing bolts 5, installs the main anchor box 3 on the crossbeam 2, then passes one end of the stay cable 7 through the through hole 11 and the anchor plate 12, and then uses the anchor 8 to fix the stay cable 7 to the anchor plate 12, effectively increasing the fixed force-bearing area of ​​the stay cable 7, effectively increasing stability, and extending service life.

[0024] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A short-tower cable-stayed bridge beam-to-cable anchoring device, comprising a main beam (1), characterized in that: The main beam (1) is provided with a cross beam (2), the cross beam (2) is provided with a main anchor box (3), the outer wall of the top of the main anchor box (3) is provided with an anchor wing plate (4), the anchor wing plate (4) is provided with a plurality of reinforcing bolts (5), the bottom of the anchor wing plate (4) is provided with a dispersion anchor box (6), the bottom end of the dispersion anchor box (6) is provided with an anchor plate (12), the inside of the main anchor box (3) is provided with a plurality of stay cables (7), the bottom end of each stay cable (7) is provided with an anchor device (8), the inside of the main anchor box (3) is provided with a fixed block (9), the fixed block (9) and the main anchor box (3) are provided with a connecting block (10), the fixed block (9) is provided with a plurality of through holes (11).

2. The cable-beam anchorage device for a low-pylon cable-stayed bridge according to claim 1, characterized in that: Each stay cable (7) penetrates the anchor plate (12), and the anchor device (8) is installed on the outer side of the anchor plate (12).

3. The cable-beam anchorage device for a low-pylon cable-stayed bridge according to claim 1, characterized in that: The stay cable (7) penetrates the connecting block (10) from the inside of the through hole (11).

4. The cable-beam anchorage device for a low-pylon cable-stayed bridge according to claim 1, characterized in that: The anchor wing plate (4) and the cross beam (2) are connected through the reinforcing bolt (5).

5. The cable-beam anchorage device for a low-pylon cable-stayed bridge according to claim 1, characterized in that: The dispersion anchor box (6) is arranged in an expanding manner from top to bottom.

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