Stay cable anchoring structure

Abstract

The utility model discloses a stay cable anchoring structure which is characterized in that a groove is formed in an arch rib wall plate, three force transmission plates are arranged in the arch rib wall plate, and the force transmission plates are welded with the arch rib wall plate; and one end of the lug plate is welded with the three force transmission plates, and the other end of the lug plate is connected with the anchoring stay cable. The stay cable anchoring structure is simple in structure, clear in stress and convenient to construct, and solves the problem of connection between a steel pylon with a complex structure and a stay cable.

Description

Technical Field

[0001] The utility model relates to the field of stay cable anchoring structures, in particular to a stay cable anchoring structure. Background Art

[0002] At present, the anchoring of the cable and the cable tower of the cable-stayed bridge mainly adopts the saddle support type, saddle anchoring type, anchor beam type, and support plate type. Among them, the saddle method mainly includes double sleeve type and split wire tube type. The main disadvantages of the double sleeve type are: 1) Several strands of steel strands are in a steel pipe. During construction, there are factors such as mutual extrusion and twisting between the steel strands, resulting in unclear force on the steel strands in the sleeve and the sleeve under the action of external tension; 2) The inner and outer pipe diameters are inconsistent; 3) The grouting of the lower part of the steel strand in the inner sleeve cannot be uniform and dense, and the steel strand is easily corroded, which seriously affects the durability of the cable; the split wire tube type is relatively complex in structure processing and construction, and the cost is relatively high. The anchor beam type has a complex support design, consumes steel, and has a high cost. In addition, the existing anchor decoration demand space is large.

[0003] The existing anchoring forms of cable towers are relatively few and cannot be adapted to the anchoring of cable towers and inclined cables with complex structures. Summary of the invention

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is that the existing steel cable tower anchoring forms are relatively few, and cannot be applied to the anchoring of steel cable towers with complex structures and inclined cables, requiring large space, and having unreasonable force. The utility model provides an inclined cable anchoring structure with simple structure, clear force, and convenient construction, which solves the problem of connecting complex structure steel cable towers with inclined cables.

[0005] To achieve the above-mentioned purpose, the utility model provides a cable-stayed anchoring structure, in which grooves are opened at the arch rib wall panels, three force transfer plates are arranged inside the arch rib wall panels, and the force transfer plates are welded to the arch rib wall panels; it also includes an ear plate, one end of the ear plate is welded to the three force transfer plates, and the other end of the ear plate is connected to the anchoring cable.

[0006] Furthermore, the three force transmission plates include a first force transmission plate, a second force transmission plate and a third force transmission plate, and the first force transmission plate, the second force transmission plate and the third force transmission plate are welded to each other to form a groove shape.

[0007] Furthermore, the first force transmission plate, the second force transmission plate and the third force transmission plate are all configured as parallelograms.

[0008] Furthermore, the thickness of the first force transmission plate, the second force transmission plate and the third force transmission plate is 40 mm.

[0009] Furthermore, the ear plate includes a first ear plate and a second ear plate, the first ear plate is configured such that one end thereof is welded and fixed to the first force transmission plate, the second force transmission plate and the third force transmission plate, and the second ear plate is arranged at the other end of the first ear plate and fixedly connected to the first ear plate.

[0010] Furthermore, the thickness of the first ear plate is 30 mm, and the thickness of the second ear plate is 65 mm.

[0011] Furthermore, a through hole is provided on the second ear plate.

[0012] Furthermore, the portion of the second ear plate that is not connected to the first ear plate is configured to be in an arc shape.

[0013] Technical Effects

[0014] The utility model provides a cable-stayed anchoring structure which has a simple structure, clear force, and convenient construction, and solves the problem of connecting a steel cable tower with a complex structure with a cable-stayed cable.

[0015] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a stay cable anchoring structure of a preferred embodiment of the utility model;

[0017] Figure 2 It is a schematic diagram of three force transfer plates and ear plates of a stay cable anchoring structure of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0019] In the following description, specific details such as specific internal procedures and techniques are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present invention. However, it should be clear to those skilled in the art that the present invention may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present invention.

[0020] like Figure 1As shown, the utility model provides a cable-stayed anchoring structure, in which a groove is opened at the arch rib wall plate, three force transfer plates are arranged inside the arch rib wall plate, and the force transfer plates are welded to the arch rib wall plate; it also includes an ear plate, one end of the ear plate is welded to the three force transfer plates, and the other end of the ear plate is connected to the anchoring cable.

[0021] Among them, Figure 2 As shown, the three force transmission plates include a first force transmission plate N1, a second force transmission plate N2 and a third force transmission plate N3. The first force transmission plate N1, the second force transmission plate N2 and the third force transmission plate N3 are welded to each other to form a groove shape.

[0022] The first force transmission plate N1, the second force transmission plate N2 and the third force transmission plate N3 are all arranged in parallelograms. The cable tower is in an arc shape, usually composed of four arch ribs, and the cross-sections of the arch rib wall panels are all quadrilaterals. Therefore, the first force transmission plate N1, the second force transmission plate N2 and the third force transmission plate N3 are arranged in parallelograms to facilitate welding with the arch rib wall panels.

[0023] The thickness of the first force transmission plate N1, the second force transmission plate N2 and the third force transmission plate N3 is 40 mm.

[0024] The ear plate includes a first ear plate N5 and a second ear plate N4. The first ear plate N5 is configured to be welded and fixed to the first force transmission plate N1, the second force transmission plate N2 and the third force transmission plate N3 at one end. The second ear plate N4 is arranged at the other end of the first ear plate and fixedly connected to the first ear plate.

[0025] The thickness of the first ear plate N5 is 30mm, and the thickness of the second ear plate N4 is 65mm. Different sizes meet different strength requirements. N4 bears the internal and external forces of the cable surface, and N5 bears the axial force. A through hole is provided on the second ear plate N4. The ear plate at the end of the inclined cable is connected to the ear plate of the inclined cable anchoring structure through a pin.

[0026] The part of the second ear plate N4 not connected to the first ear plate is arranged in an arc shape, which makes the force clear, saves steel, and facilitates the cable to move up and down along the pin shaft.

[0027] The utility model provides a force transmission path of a cable-stayed anchor structure as follows: cable-pin-anchor ear plate-arch rib wall plate-arch rib, the cable is pulled on the second ear plate N4, the second ear plate N4 transmits force to the first ear plate N5, the first ear plate N5 transmits force to the third force transmission plate N3, the third force transmission plate N3 transmits force to the side wall of the bridge tower, and the force is clear.

[0028] In the embodiment of the utility model, the construction process of a cable-stayed anchor structure is: when constructing a steel structure cable tower, a groove is cut at the arch rib wall panel, and the ear plate of the cable-stayed anchor structure is extended into the interior of the steel tower and welded to the force transfer plate, and the force transfer plate is then welded to the arch rib wall panel, thereby completing the construction of the cable-stayed anchor structure, which has a simple structure and simple construction.

[0029] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A cable anchoring structure, characterized in that: A groove is opened at the arch rib wall plate, and three force transfer plates are arranged inside the arch rib wall plate, and the force transfer plates are welded to the arch rib wall plate; it also includes an ear plate, one end of which is welded to the three force transfer plates, and the other end of the ear plate is connected to the anchoring inclined cable; the three force transfer plates include a first force transfer plate, a second force transfer plate and a third force transfer plate, and the first force transfer plate, the second force transfer plate and the third force transfer plate are welded to each other to form a groove shape; the first force transfer plate, the second force transfer plate and the third force transfer plate are all arranged in a parallelogram shape.

2. A stay cable anchoring structure according to claim 1, characterized in that: The thickness of the first force transmission plate, the second force transmission plate and the third force transmission plate is 40 mm.

3. The cable anchoring structure according to claim 1, characterized in that: The ear plate includes a first ear plate and a second ear plate. The first ear plate is configured such that one end thereof is welded and fixed to the first force transmission plate, the second force transmission plate and the third force transmission plate, and the second ear plate is arranged at the other end of the first ear plate and fixedly connected to the first ear plate.

4. A stay cable anchoring structure as claimed in claim 3, characterized in that: The thickness of the first ear plate is 30 mm, and the thickness of the second ear plate is 65 mm.

5. The cable anchoring structure according to claim 3, characterized in that: The second ear plate is provided with a through hole.

6. A stay cable anchoring structure as claimed in claim 3, characterized in that: The portion of the second ear plate not connected to the first ear plate is configured in an arc shape.

Images