Stay cable matrix arrangement group anchor system

Abstract

The utility model discloses a stay cable matrix arrangement group anchor system which comprises a stay cable group and an anchoring device, the stay cable group comprises a plurality of stay cables in a rectangular array, the anchoring device comprises side plates used for being installed on reinforced concrete and anchoring plates installed on the side plates, and the number of the anchoring plates is the same as the layer number of the stay cables in the height direction. The multiple anchoring plates are distributed at intervals in the height direction, and the stay cables located on the same layer are installed on the same anchoring plate. According to the stay cable matrix arrangement group anchor system, the tension of the multiple stay cables of the matrix arrangement stay cable group is finally concentrated to the whole anchor plate and then transmitted to the reinforced concrete tower wall, the problems that the number of anchor heads is increased and anchoring is not easy due to the fact that the number of the stay cables of the matrix arrangement stay cable group is increased are solved, and the structure stress is clear, safe and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge engineering, in particular to a matrix-arranged group anchor system of inclined cables. Background Art

[0002] A cable-stayed bridge consists of cables, towers, main beams and a bridge deck. The deck load is transmitted to the cables through the main beams, and then to the towers. Cable-stayed bridges are an important form of modern large-span bridges. Especially when building large-span bridges across canyons, bays, large rivers and other places where it is difficult to build piers, suspension bridges and cable-stayed bridges are often chosen.

[0003] Currently, most cable-stayed bridges use single or double cables, which are heavy and time-consuming to install. Replacing cables requires traffic interruption. However, on high-speed rail and railway cable-stayed bridges, actual construction time is only about three hours a day, making it impossible to complete dismantling and installation in a single day using current technology. Furthermore, railway bridges have high deflection requirements, and removing a single cable changes the structural stiffness, making it impossible to meet normal operational requirements. To address these issues, decomposing a single cable into multiple cables is a feasible and effective method, but this requires solving the problem of anchoring these multiple cables. Utility Model Content

[0004] Based on this, it is necessary to provide a cable matrix arrangement group anchor system to solve the problem of decomposing a single cable into multiple cable combinations and the difficulty of anchoring multiple cable combinations.

[0005] A cable-stayed matrix anchor system includes a cable group and an anchoring device, wherein the cable group includes multiple cables in a rectangular array, and the anchoring device includes side plates for installation on reinforced concrete and anchor plates installed on the side plates. The number of anchor plates is the same as the number of layers of the cables in the height direction. The multiple anchor plates are distributed at intervals in the height direction, and the cables on the same layer are installed on the same anchor plate.

[0006] In one embodiment, the side panels are provided in two groups, and the two groups of side panels are respectively installed on two opposite inner walls of reinforced concrete, and the two ends of the anchoring plate are respectively connected to the two groups of side panels.

[0007] In one embodiment, the side panel includes an outer panel and an inner panel, the outer panel is mounted on the inner wall of reinforced concrete, the inner panel is connected to the anchoring plate, and the inner panel is bolted to the outer panel.

[0008] In one embodiment, the bolts in the middle area between the outer plate and the inner plate are tightened first.

[0009] In one embodiment, the anchoring device further includes a top plate and a bottom plate, wherein the top plate is mounted on the top of the side plate and connects the two side plates, and the bottom plate is mounted on the bottom of the side plate and connects the two side plates.

[0010] In one embodiment, both the top plate and the bottom plate are provided with manholes for construction and maintenance.

[0011] In one embodiment, the anchoring device further includes an anchoring integrated block, and the end of each of the inclined cables is installed with the anchoring integrated block, and the anchoring integrated block is installed on the anchoring plate to enable the inclined cables to be installed on the anchoring plate.

[0012] In one embodiment, the stay cable groups are arranged in at least two rows in the transverse direction and in at least two layers in the height direction.

[0013] In this cable-stayed matrix anchor system, cables on the same level are mounted on a single anchor plate, which is then mounted on side plates, which are then mounted on reinforced concrete. This completes the process of transferring the cable force from the rectangular array of cables to the tower wall. This system concentrates the tension of multiple cables in the matrix array onto a single anchor plate, which is then transferred to the reinforced concrete tower wall. This solves the problem of increased anchorage, which often results from the increased number of cables in a matrix arrangement. Furthermore, the system provides a clearer force distribution and is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0015] Figure 1 Schematic diagram of the structure of a matrix-arranged group anchor system of inclined cables in one embodiment;

[0016] Figure 2 for Figure 1 The plan view of the group anchor system with a matrix arrangement of inclined cables is shown;

[0017] Figure 3 for Figure 1 Large-scale drawing of the anchored integrated block.

[0018] Reference numerals:

[0019] 1-reinforced concrete, 10-stayed cable, 20-side plate, 21-outer plate, 22-inner plate, 23-bolt area first, 30-anchor plate, 40-top plate, 50-bottom plate, 52-manhole, 60-anchor manifold. DETAILED DESCRIPTION

[0020] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the following detailed description of specific embodiments of the present invention is provided in conjunction with the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0023] See also Figure 1 In one embodiment, a stay cable matrix arrangement group anchor system includes a stay cable group and an anchoring device.

[0024] The stay cable group includes multiple stay cables 10 in a rectangular array, replacing a single stay cable 10. This reduces the weight of the stay cables 10 and facilitates installation and replacement of the stay cables 10. In one embodiment, the stay cable group is arranged in at least two rows in the transverse direction and at least two layers in the height direction, with a total of no less than four cables.

[0025] Please also refer to Figure 2 and Figure 3 The anchoring device includes side plates 20 and anchor plates 30. The side plates 20 are used to be installed on the reinforced concrete 1, and the anchor plates 30 are installed on the side plates 20. The number of anchor plates 30 is equal to the number of layers of the inclined cables 10 in the height direction. Multiple anchor plates 30 are spaced apart in the height direction, and the inclined cables 10 on the same layer are installed on the same anchor plate 30. The inclined cables 10 on the same layer are installed on the same anchor plate 30. The anchor plates 30 are installed on the side plates 20, and the side plates 20 are installed on the reinforced concrete 1, completing the process of transmitting the cable force of the rectangular array inclined cables to the tower wall.

[0026] In one embodiment, two groups of side panels 20 are provided, and the two groups of side panels 20 are respectively installed on two opposite inner walls of the reinforced concrete 1. The two ends of the anchor plate 30 are respectively connected to the two groups of side panels 20 to ensure that the anchor plate 30 is firmly installed and provide sufficient tension for the inclined cable 10.

[0027] Based on the above embodiment, the side panel 20 further includes an outer panel 21 and an inner panel 22. The outer panel 21 is installed on the inner wall of the reinforced concrete 1, and the inner panel 22 is connected to the anchor plate 30. The inner panel 22 and the outer panel 21 are connected by bolts. The anchor plate 30 and the inner panel 22 are fixedly connected to form a whole, which can ensure the stability of the connection between the anchor plate 30 and the inner panel 22. The inner panel 22 and the outer panel 21 are detachably connected, which can facilitate the assembly of the anchoring device. The number of inner panels 22 is the same as the number of anchor plates 30. Multiple anchor plates 30 are respectively connected to multiple inner panels 22, and the multiple inner panels 22 are sequentially installed on the outer panel 21 along the height direction.

[0028] In one embodiment, the bolted connection areas of the outer and inner panels 21 and 22 are divided into a pre-bolt area 23 and a general area. Bolts in the pre-bolt area 23 are tightened before the main beam is folded, and bolts in the general area are tightened after folding. This allows the inner panel 22 to deform freely under the horizontal forces of the right and left cable forces, achieving a self-balanced state and preventing them from being transmitted to the pylon wall and causing concrete cracking.

[0029] In one embodiment, the anchoring device further includes a top plate 40 and a bottom plate 50. The top plate 40 is located on top of the side plates 20, connecting the two side plates 20. The bottom plate 50 is located at the bottom of the side plates 20, connecting the two side plates 20, thereby connecting the two side plates 20 as a whole and ensuring the load-bearing capacity of the side plates 20. Furthermore, both the top plate 40 and the bottom plate 50 have manholes 52, through which one can enter the anchoring space for construction or maintenance.

[0030] In one embodiment, the anchoring device further includes an anchoring integrated block 60, the number of which is the same as the number of the inclined cables 10, and an anchoring integrated block 60 is installed at the end of each inclined cable 10. The anchoring integrated block 60 is installed on the anchoring plate 30 to enable the inclined cable 10 to be installed on the anchoring plate 30, thereby ensuring the stability of the anchoring of the inclined cable 10 on the anchoring plate 30.

[0031] In one embodiment, the outer plate 21, inner plate 22, anchor plate 30, top plate 40, and bottom plate 50 are all made of steel plates to ensure sufficient strength of the anchoring device. It is understood that in other embodiments, the outer plate 21, inner plate 22, anchor plate 30, top plate 40, and bottom plate 50 may also be made of other materials as long as they have sufficient strength.

[0032] The construction process of the above-mentioned cable-stayed matrix anchor group system is as follows:

[0033] Anchor manifolds 60 are installed at both ends of each inclined cable 10. Each layer of anchor manifolds 60 are fixed to the same anchor plate 30 to form an integral structure. The same method is then used to attach the inclined cables 10 of other layers to the anchor plate 30 through the anchor manifolds 60, forming a multi-layer unit structure.

[0034] One end of the anchor plate 30 is connected to the inner plate 22 , and the other end of the anchor plate 30 is connected to another inner plate 22 , so that all the cable forces of multiple inclined cables 10 at a single location are concentrated on the inner plate 22 .

[0035] The outer plate 21 is installed outside the inner plate 22, and the inner plate 22 and the outer plate 21 are connected with high-strength bolts. Finally, the outer plate 21 is embedded into the inner wall of the reinforced concrete tower 1, and the cable force of the inclined cable group 10 is concentratedly transferred to the tower wall, completing the entire transfer process.

[0036] The above-mentioned matrix-arranged cable group anchor system finally concentrates the tension of multiple cables 10 in the matrix-arranged cable group into a whole anchor plate 30 and then transmits it to the reinforced concrete tower wall 1, thereby solving the problem of increased number of anchor heads and difficulty in anchoring caused by the increased number of cables 10 in the matrix-arranged cable group. The structure is clearly stressed and safe and reliable.

[0037] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A stay cable matrix arrangement group anchor system, characterized in that: It includes a cable group and an anchoring device, wherein the cable group includes multiple cables in a rectangular array, and the cable group is used to replace a single cable. The anchoring device includes a side plate for installation on reinforced concrete and an anchor plate installed on the side plate. The number of the anchor plates is the same as the number of layers of the cables in the height direction. The multiple anchor plates are distributed at intervals in the height direction, and the cables on the same layer are installed on the same anchor plate.

2. The cable-stayed matrix anchor system according to claim 1, characterized in that: There are two groups of side panels, which are respectively installed on two opposite inner walls of reinforced concrete, and the two ends of the anchoring plate are respectively connected to the two groups of side panels.

3. The cable-stayed matrix anchor system according to claim 2, characterized in that: The side plate includes an outer plate and an inner plate, the outer plate is installed on the inner wall of the reinforced concrete, the inner plate is connected to the anchor plate, and the inner plate is bolted to the outer plate.

4. The cable-stayed matrix anchor system according to claim 3, characterized in that: The bolts in the middle area between the outer plate and the inner plate are tightened first.

5. The cable-stayed matrix anchor system according to claim 2, characterized in that: The anchoring device further includes a top plate and a bottom plate, wherein the top plate is mounted on the top of the side plates and connects the two side plates, and the bottom plate is mounted on the bottom of the side plates and connects the two side plates.

6. The cable-stayed matrix anchor system according to claim 5, characterized in that: The top plate and the bottom plate are both provided with manholes for construction and maintenance.

7. The cable-stayed matrix anchor system according to claim 1, characterized in that: The anchoring device further includes an anchoring integrated block, and the end of each of the inclined cables is installed with the anchoring integrated block, and the anchoring integrated block is installed on the anchoring plate to enable the inclined cables to be installed on the anchoring plate.

8. The stay cable matrix anchor system according to claim 1, characterized in that: The stay cable groups are arranged in at least two rows in the transverse direction and in at least two layers in the height direction.

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