Inhaul cable anchoring structure

Abstract

The utility model discloses an inhaul cable anchoring structure which comprises anchoring blocks and inhaul cable anchorage devices, the anchoring blocks are arranged on the bottom face of a box girder top plate, the anchoring blocks are symmetrically arranged on the two sides of a box girder web along the box girder web, and the inhaul cable anchorage devices and inhaul cables are connected and arranged on the anchoring faces of the anchoring blocks. A base plate is arranged between the inhaul cable anchorage device and the anchoring block, and a protective cover is further arranged outside the anchoring block and the inhaul cable anchorage device. The problem that an anchoring structure of an existing stay cable is prone to loosening is solved.

Description

Technical Field

[0001] This utility model relates to the field of bridge structures, and in particular to a cable anchoring structure. Background Technology

[0002] A cable-stayed bridge, also known as a skeletal bridge, is a type of bridge in which the main beam is directly supported by numerous cables to the bridge towers. It is a structural system composed of compression-bearing towers, tension-bearing cables, and bending-bearing beams. It can be regarded as a multi-span elastically supported continuous beam where cables replace piers. This reduces the bending moment within the beam, lowers the building height, reduces the structural weight, and saves materials. A cable-stayed bridge mainly consists of towers, main beams, and cables.

[0003] Existing stay cables are all fixed by cable anchoring structures. The existing cable anchoring structures are relatively simple. However, because stay cables are subjected to large forces, the concrete blocks used for stay cables are prone to deformation due to uneven stress, which will affect the anchoring of the stay cables. In order to solve the above problems, the existing anchoring structures need to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a cable anchoring structure that solves the problem of easy loosening of existing cable anchoring structures.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A cable anchoring structure includes an anchoring block and a cable anchor. The anchoring block is disposed on the bottom surface of the top plate of a box girder and is symmetrically disposed on both sides of the web of the box girder. The cable anchor is connected to the cable and disposed on the anchoring surface of the anchoring block. A pad is provided between the cable anchor and the anchoring block. A protective cover is also provided outside the anchoring block and the cable anchor.

[0007] A pad is placed between the anchor block and the cable anchor to ensure that the anchor block is evenly stressed and is less prone to deformation due to excessive tension, thus making the cable anchorage more stable.

[0008] As a further preferred embodiment of the present invention, the protective cover includes a cover body, the top of the cover body is provided with a moisture-proof and waterproof connecting frame, the middle of the moisture-proof and waterproof connecting frame is provided with bolt holes evenly distributed, and the moisture-proof and waterproof connecting frame includes a frame body and a rubber sealing layer arranged sequentially from top to bottom.

[0009] Since the structure is located above the water surface, the humidity is high. Water exposure can affect the service life of the cable anchors. Therefore, in order to extend the service life of the cable anchors as much as possible, a protective cover is installed on the anchor block and the cable anchors. This protective cover not only protects the structure from external impacts, but also provides moisture and water protection.

[0010] As a further preferred embodiment of this utility model, the bottom surface of the box girder top plate is also provided with a concrete inner retaining structure frame, which is located inside the moisture-proof and waterproof connecting frame.

[0011] Over time, the moisture-proof and waterproof connecting frame will develop some minor deformations. Therefore, in order to minimize the impact of these minor deformations on the moisture-proof and waterproof effect, a concrete inner retaining structure frame is installed on the inside of the moisture-proof and waterproof connecting frame.

[0012] As a further preferred embodiment of this invention, the anchor block is a triangular prism.

[0013] Such an anchoring structure provides stable support for cable anchors.

[0014] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0015] 1. A pad is placed between the anchor block and the cable anchor, which allows the anchor block to be evenly stressed and less prone to deformation due to excessive tension, thus making the cable anchorage more stable.

[0016] 2. Since the structure is located above the water surface, the humidity is high. Water exposure will affect the service life of the cable anchor. Therefore, in order to extend the service life of the cable anchor as much as possible, a protective cover is installed on the anchor block and the cable anchor. This protective cover not only protects the structure from external impacts, but also provides moisture and water protection.

[0017] 3. Over time, the moisture-proof and waterproof connecting frame will undergo some minor deformation. Therefore, in order to minimize the impact of these minor deformations on the moisture-proof and waterproof effect, a concrete inner retaining structure frame is installed on the inside of the moisture-proof and waterproof connecting frame.

[0018] 4. The anchor block is a triangular prism, which provides stable support for the cable anchor. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the connection structure between the protective cover and the box girder. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example 1

[0028] Figure 1 , Figure 2 A cable anchoring structure is shown, including an anchoring block 1 and a cable anchor 2. The anchoring block 1 is disposed on the bottom surface of the top plate of the box girder and is symmetrically disposed on both sides of the web of the box girder. The cable anchor 2 is connected to the cable and disposed on the anchoring surface of the anchoring block 1. A pad 3 is provided between the cable anchor 2 and the anchoring block 1. A protective cover 4 is also provided outside the anchoring block 1 and the cable anchor 2.

[0029] A pad is placed between the anchor block and the cable anchor to ensure that the anchor block is evenly stressed and is less prone to deformation due to excessive tension, thus making the cable anchorage more stable.

[0030] Example 2

[0031] This embodiment further describes the protective cover 4 based on specific embodiment 1. The protective cover 4 includes a cover body, and a moisture-proof and waterproof connecting frame 5 is provided on the top of the cover body. Bolt holes are evenly provided in the middle of the moisture-proof and waterproof connecting frame 5. The moisture-proof and waterproof connecting frame 5 includes a frame body 51 and a rubber sealing layer 52 arranged sequentially from top to bottom.

[0032] Since the structure is located above the water surface, the humidity is high. Water exposure can affect the service life of the cable anchors. Therefore, in order to extend the service life of the cable anchors as much as possible, a protective cover is installed on the anchor block and the cable anchors. This protective cover not only protects the structure from external impacts, but also provides moisture and water protection.

[0033] Example 3

[0034] This embodiment adds a concrete inner retaining structure frame 6 to the specific embodiment 2. The bottom surface of the box girder top plate is also provided with a concrete inner retaining structure frame 6, which is located inside the moisture-proof and waterproof connecting frame 5.

[0035] Over time, the moisture-proof and waterproof connecting frame will develop some minor deformations. Therefore, in order to minimize the impact of these minor deformations on the moisture-proof and waterproof effect, a concrete inner retaining structure frame is installed on the inside of the moisture-proof and waterproof connecting frame.

[0036] Example 4

[0037] This embodiment further describes the anchor block 1 based on specific embodiment 1. The anchor block 1 is a triangular prism.

[0038] The anchor block is a triangular prism, and this anchoring structure provides stable support for the cable anchor.

[0039] Although the present invention 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable anchoring structure, characterized in that: It includes an anchor block (1) and a cable anchor (2). The anchor block (1) is set on the bottom surface of the top plate of the box girder. The anchor block (1) is symmetrically set on both sides of the web of the box girder. The cable anchor (2) is connected to the cable and set on the anchoring surface of the anchor block (1). A pad (3) is provided between the cable anchor (2) and the anchor block (1). A protective cover (4) is also provided outside the anchor block (1) and the cable anchor (2).

2. The cable anchoring structure according to claim 1, characterized in that: The protective cover (4) includes a cover body, and a moisture-proof and waterproof connecting frame (5) is provided on the top of the cover body. Bolt holes are evenly provided in the middle of the moisture-proof and waterproof connecting frame (5). The moisture-proof and waterproof connecting frame (5) includes a frame body (51) and a rubber sealing layer (52) arranged sequentially from top to bottom.

3. The cable anchoring structure according to claim 2, characterized in that: The bottom surface of the top plate of the box girder is also provided with a concrete inner retaining structure frame (6), which is located inside the moisture-proof and waterproof connecting frame (5).

4. The cable anchoring structure according to claim 1, characterized in that: The anchor block (1) is a triangular prism.

Images