A multi-directional rotating single-beam anchor head structure and use method

Abstract

The present application relates to a multi-directionally rotatable single-beam anchor head structure and a method of use, which belongs to the field of bridge design. The multi-directionally rotatable single-beam anchor head structure includes a pressure-bearing plate, which is used to bear the axial pressure of the cable strand. Anchor flanges are connected to both sides of the pressure-bearing plate, a positioning plate is used to assist the pressure-bearing plate in fixing the cable strand, and the locking plate includes a first locking plate and a second locking plate. The rotating assembly includes a concave pad and a convex anchor. The rectangular pad is used to fill the excessive gap between the locking plate and the concave pad, making the structure more stable and positioning it through the locking plate; the present application can reduce the structural size of the anchor head, reduce the construction difficulty, extend the service life, and reduce the cost through the cooperation between the pressure-bearing plate, the positioning plate, the locking plate, the concave pad, the rectangular pad and the convex anchor, thereby avoiding connection by fixing methods such as welding, or increasing the volume and size of the anchor head structure to achieve improved performance and stress, resulting in increased cost and inconvenience in replacement.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and in particular to a multi-directionally rotatable single-beam anchor head structure and a method for using the same. Background Art

[0002] Suspension bridges are currently one of the best bridge types available for spans exceeding 1,000 meters. They feature a simple structure and clear force distribution. The main cable anchoring system consists of a rear anchor beam, anchor rods, and anchor heads, which are the force-transmitting structure that transmits the main cable tension to the anchor block. The thick main cable is first spread out through the cable saddle, and then the huge cable force is transmitted to the anchor rod through the anchor head in a direction parallel to the centerline of the anchor rod, and then to the rear anchor beam, and finally to the anchor block concrete.

[0003] The anchor head is the most critical part of the entire force-bearing system. Its layout directly determines the force state of the anchor rod and the rear anchor beam, and it is the lifeline of the entire suspension bridge.

[0004] The most commonly used single-beam anchor head currently has the following four problems:

[0005] 1. Traditional single-beam anchor heads are welded together using rectangular steel plates. Due to the limitations of the anchor body, manufacturing tolerances for the steel plates, and welding deformation between the plates, the centerline of the anchor rod and anchor head is not parallel to the cable strand being anchored, but rather at a certain angle. Therefore, the anchor head not only bears the enormous axial pressure of the cable strand, but also generates lateral pressure perpendicular to the centerline of the anchor head due to the angle. This lateral pressure acts directly on the plane along the thickness of the bearing plate, which minimizes the bearing area and is highly susceptible to strength damage.

[0006] 2. The lateral pressure generated by this process also creates a lateral bending moment in anchor rods tens of meters long. To mitigate the adverse effects of this bending moment, designers typically widen the rod and increase the thickness of its plates until the required load is met. This inevitably results in a significant waste of steel in the anchoring system.

[0007] 3. Because the cable strands are not parallel to the anchor heads, the strands passing through the anchor heads inevitably experience friction with the edges of the plate holes in the anchor head structure. This undoubtedly causes wear and tear on the strands and steel plates. Since the cable strands and anchor heads share the same lifespan as the entire bridge and are permanently non-replaceable, this can easily create structural weaknesses, significantly shortening the bridge's lifespan and creating safety hazards.

[0008] 4. Because the anchor head structure cannot rotate, its tolerance for error is extremely low. Therefore, in addition to strict layout of the cable system during the design process, extensive positioning measures are required during construction to ensure the angular accuracy of the anchor rods. This results in a longer construction period, significantly increasing construction costs and difficulty. Summary of the Invention

[0009] The embodiments of the present application provide a multi-directionally rotatable single-beam anchor head structure and a method of use to address the problem in the related art that existing anchors are not convenient for adaptive alignment with the center line of the cable strand, resulting in reduced lifespan, increased cost, and reduced accuracy.

[0010] The first aspect of the present application provides a multi-directional rotating single-beam anchor head structure, comprising

[0011] A pressure-bearing plate, the pressure-bearing plate is used to bear the axial pressure of the cable strands, and anchor flanges are connected to both sides of the pressure-bearing plate;

[0012] A positioning plate, the positioning plate is used to assist the pressure plate in fixing the cable strands;

[0013] A locking plate, the locking plate comprising a first locking plate and a second locking plate, the first locking plate being used to re-fix the cable strands, and the second locking plate increasing the supporting stiffness of the locking plate;

[0014] A rotating assembly comprising a concave pad and a convex anchor, wherein one side of the concave pad is provided with an arcuate surface for rotating the convex anchor, and the convex anchor is provided with an arcuate end portion for sliding and rotating in cooperation with the concave pad;

[0015] The rectangular pad is used to fill the excessive gap between the locking plate and the concave pad, making the structure more stable and being positioned by the locking plate.

[0016] In some embodiments, the pressure plate includes a pressure plate surface, a circular hole opened on the pressure plate surface, and a first bolt hole opened on the pressure plate surface for connection.

[0017] In some embodiments, the positioning plate includes a positioning plate surface, a first U-shaped notch formed on the positioning plate, and a second bolt hole formed on the positioning plate.

[0018] In some embodiments, the first locking plate includes a first locking plate surface, a second U-shaped notch formed on the first locking plate, and a third bolt hole formed on the first locking plate.

[0019] In some embodiments, the second locking plate includes a second locking plate surface perpendicularly disposed on the first locking plate surface and a side plate perpendicularly disposed on a side of the second locking plate surface away from the first locking plate surface, wherein the second locking plate surface is located below the cable strand;

[0020] A vertical plate is provided between the side plate and the first locking plate surface. The vertical plate is provided on a side of the second locking plate surface away from the cable strands and is vertically connected to the second locking plate surface.

[0021] In some embodiments, there are a plurality of rectangular pads, each of which includes a first pad surface and a third U-shaped notch formed on the rectangular pad.

[0022] In some embodiments, the concave pad includes a slot and a second pad surface;

[0023] The card slot includes a central hole formed on the concave pad and a fourth U-shaped notch formed on the concave pad and connected to the central hole;

[0024] The second pad surface is provided with an arc-shaped groove which rotates in cooperation with the convex anchor.

[0025] In some embodiments, the interior of the convex anchor is a hollow structure, and the end close to the concave pad is open;

[0026] The convex anchor is provided with an anchor lock connected to the cable strand;

[0027] One end of the convex anchor close to the concave pad is an arcuate surface that rotates in cooperation with the concave pad.

[0028] In some embodiments, the positioning plate is disposed on one side of the pressure plate;

[0029] The first locking plate is arranged on a side of the positioning plate away from the pressure plate;

[0030] The first locking plate is connected to the positioning plate and the pressure plate by bolts;

[0031] The rectangular pad is vertically arranged on the vertical plate;

[0032] The concave pad is arranged on a side of the rectangular pad away from the first locking plate and connected thereto;

[0033] The convex anchor is arranged on a side of the concave pad away from the rectangular pad.

[0034] A second aspect of the present application provides a method for using a multi-directionally rotatable single-beam anchor head structure, comprising the following steps:

[0035] First, weld the two sides of the bearing plate to the I-shaped anchor flanges, then pass the convex anchor along with the cable strands through the circular holes of the bearing plate;

[0036] Then, insert the positioning plate through the first U-shaped notch from the side of the cable strand and sleeve it onto the outside of the cable strand;

[0037] Then, the first locking plate is inserted through the side of the second U-shaped notch of the cable strand and is sleeved on the outside of the cable strand, and bolted through the second bolt hole of the positioning plate and the first bolt hole of the pressure plate in sequence to achieve bolt connection;

[0038] The cable strand is tensioned by a jack and positioned by a first locking plate, and then the concave pad is inserted through the slot from the side of the cable strand and sleeved onto the outside of the cable strand;

[0039] Then, the rectangular pads are inserted and clamped on the outer sides of the cable strands in a staggered manner to fill the gap between the first locking plate and the concave pads to prevent them from loosening and shaking.

[0040] Then, the cable strand is inserted into the convex anchor and connected to the anchor lock, and the arcuate sliding surface between the end of the convex anchor and the concave pad is polished smooth to ensure that the roughness meets the specification;

[0041] Finally, an arc-shaped sliding body is formed between the convex anchor and the concave pad through the huge cable force. When the cable and the anchor head have an angular deviation in any direction, the sliding body will adaptively turn to the direction of the cable centerline.

[0042] The embodiment of the present application provides a multi-directionally rotatable single-bundle anchor head structure and a method of use. Since the force on the cable strand is borne by the pressure plate, the cable strand is positioned and fixed by the positioning plate, the cable strand is fixed again by the first locking plate, and the second locking plate is used to increase the supporting stiffness of the locking plate, the rectangular pad located above the second locking plate is made more stable, avoiding shaking and supporting the cable strand, and preventing the second locking plate from falling downward and tilting under force for a long time, resulting in a change in force intensity, making it difficult for the center line of the convex anchor to be coaxial with the center line of the cable strand.

[0043] By adaptively rotating the convex anchor on the concave pad to change its orientation, the convex anchor can adaptively rotate and slide when an angular deviation occurs between the convex anchor and the cable in any direction, so that the convex anchor is turned toward the centerline of the cable, and the centerline of the convex anchor is coaxial with the centerline of the cable, so that the force direction of the entire anchor head is consistent with the direction of the cable, eliminating the adverse effects of eccentric bending moment on the anchor head and anchor rod structure, making force transmission more uniform, avoiding the non-rotatability of the anchor head structure, and having extremely low fault tolerance. At the same time, it also avoids the need to add a large number of additional positioning measures to ensure the angular accuracy of the anchor rod, resulting in a prolonged construction period and a significant increase in construction cost and difficulty.

[0044] Through the coordination among the pressure plate, positioning plate, locking plate, concave pad, rectangular pad and convex anchor, the structural dimensions of the anchor head are reduced, the construction difficulty is reduced, the service life is extended, the cost is reduced, and the traditional welding method is avoided for fixation, which is prone to welding deformation and errors, and is prone to lateral pressure acting directly on the plane in the thickness direction of the pressure plate. This pressure-bearing area is the smallest and is prone to strength damage. It also avoids increasing the volume and size of the anchor head structure, resulting in increased costs and inconvenience in replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0046] Figure 1 A schematic diagram of the structure provided in an embodiment of the present application;

[0047] Figure 2 A schematic diagram of the structure of the pressure plate provided in this application;

[0048] Figure 3 A schematic diagram of the structure of the positioning plate provided in this application;

[0049] Figure 4 A first structural schematic diagram of the locking plate provided in this application;

[0050] Figure 5 A second structural schematic diagram of the locking plate provided in this application;

[0051] Figure 6 A schematic diagram of the structure of the rectangular pad provided in this application;

[0052] Figure 7 This is a schematic structural diagram of the concave pad provided in this application.

[0053] 1. Pressure plate; 2. Positioning plate; 3. First locking plate; 4. Second locking plate; 5. Rectangular pad; 6. Concave pad; 7. Convex anchor; 8. Anchor flange; 11. Circular hole; 12. Pressure plate surface; 13. First bolt hole; 21. First U-shaped notch; 22. Positioning plate surface; 23. Second bolt hole; 31. Second U-shaped notch; 32. First locking plate surface; 33. Third bolt hole; 41. Second locking plate surface; 42. Vertical plate; 43. Side plate; 51. Third U-shaped notch; 52. First pad surface; 61. Slot; 62. Arc-shaped groove; 63. Second pad surface. DETAILED DESCRIPTION

[0054] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0055] The embodiments of the present application provide a multi-directionally rotatable single-beam anchor head structure and a method of use, which can solve the problems of the existing anchor head structure being complex, resulting in difficult construction, high cost and short service life.

[0056] See also Figure 1-7 As shown, the first aspect of the embodiment of the present application provides a multi-directional rotation single-beam anchor head structure, which can make the multi-directional rotation of the anchor head suitable for different angles, improve the accuracy of the anchor rod, and the overall force strength, including

[0057] Pressure plate 1, positioning plate 2, locking plate, rotating assembly and rectangular pad 5.

[0058] The pressure plate 1 is used to bear the axial pressure of the lock strand.

[0059] The positioning plate 2 is used to assist the pressure plate 1 in fixing the locking strands.

[0060] Among them, the locking plate includes a first locking plate 3 and a second locking plate 4. The first locking plate 3 is used to fix the locking strand again to fix the locking strand. The second locking plate 4 is used to increase the supporting stiffness of the locking plate, so that the rectangular pad 5 located above the second locking plate 4 is more stable, avoiding shaking and supporting the cable strand.

[0061] Among them, the rotating component includes a concave pad 6 and a convex anchor 7. One side of the concave pad 6 is provided with an arc surface that allows the convex anchor 7 to rotate, and the convex anchor 7 is provided with an arc end that cooperates with the concave pad 6 to slide and rotate.

[0062] The curved end of the convex anchor 7 and the curved groove 62 of the concave backing plate 6 allow the convex anchor 7 to adaptively rotate and slide when an angular deviation occurs between the convex anchor 7 and the cable strand in any direction, so that the convex anchor 7 is turned toward the centerline of the cable strand, and the centerline of the convex anchor 7 is coaxial with the centerline of the cable strand.

[0063] The rectangular pad 5 is used to fill the excessive gap between the locking plate and the concave pad 6, so that the connection is more stable and is positioned and fixed by the locking plate.

[0064] After the locking plate and the concave pad 6 are installed, there will be a gap between the first locking plate 3 and the concave pad 6, which is filled with a plurality of rectangular pads 5 to avoid the gap making the structure unstable and causing shaking.

[0065] When it is necessary to replace each component, the bolts connecting the components can be loosened and the components can be directly removed from the cable strands along the grooves for replacement, thereby maintaining the components in the best condition, extending their service life, and avoiding the need for overall replacement that leads to increased costs and construction inconvenience.

[0066] In some optional embodiments, see Figure 1-4As shown, the pressure plate 1 includes a pressure plate surface 12, a circular hole 11 provided on the pressure plate surface 12, and a first bolt hole 13 provided on the pressure plate surface 12 for connection.

[0067] During assembly, the cable strand is first passed through the circular hole 11 of the pressure plate 1, and the pressure plate 1 bears the force of the cable strand. The diameter of the circular hole 11 is larger than the diameter of the cable strand. The pressure plate 1 must also have a certain thickness and width to ensure that it can withstand the axial pressure of the cable strand. The bolt can be passed through the first bolt hole 13 to bolt the pressure plate 1 to the positioning plate 2 and the first locking plate 3.

[0068] In some optional embodiments, see Figure 1-4 As shown, the positioning plate 2 includes a positioning plate surface 22, a first U-shaped notch 21 opened on the positioning plate 2 and a second bolt hole 23 opened on the positioning plate 2.

[0069] The positioning plate 2 is placed on one side of the pressure plate 1. The diameter of the first U-shaped slot 21 is larger than the diameter of the cable strand, so that it can pass through the main cable strand. The center of the first U-shaped slot 21 coincides with the center of the circular hole 11, so that they remain on the same axis. The positioning plate 2 is connected to the pressure plate 1 and the first locking plate 3 through the second bolt hole 23.

[0070] The cable strand can be inserted into the interior of the positioning plate 2 through the first U-shaped notch 21 of the positioning plate 2, so that the positioning plate 2 can be positioned and fixed on it, and the positioning plate 2 can be put on the outside of the cable strand from any side of the cable strand, as shown in FIG. Figure 1 The cable is inserted from front to back to the outside of the cable strand, or from back to front to the outside of the cable strand.

[0071] In some optional embodiments, see Figure 1-4 As shown, the first locking plate 3 includes a first locking plate surface 32 , a second U-shaped notch 31 formed on the first locking plate 3 , and a third bolt hole 33 formed on the first locking plate 3 .

[0072] When the second U-shaped notch 31 and the first U-shaped notch 21 are inserted into the outside of the cable strand, the entry direction is opposite, that is, the final direction of the notch is opposite, so that they form a staggered arrangement, which makes the cable strand more stable. The first locking plate 3 is clamped to the outside of the cable strand through the second U-shaped notch 31 to fix the cable strand. The first locking plate 3 is bolted to the positioning plate 2 and the pressure plate 1 through the third bolt hole 33.

[0073] In this embodiment, the second locking plate 4 includes a second locking plate surface 41 vertically arranged on the first locking plate surface 32, and a side plate 43 vertically arranged on the side of the second locking plate surface 41 away from the first locking plate surface 32, and the second locking plate surface 41 is located below the cable strand.

[0074] The second locking plate 4 and the first locking plate 3 are welded and assembled during manufacturing. When the first locking plate 3 is inserted into the outside of the cable strand from the side, the second locking plate 4 will be placed under the cable strand.

[0075] A vertical plate 42 is fixed between the side plate 43 and the first locking plate surface 32. The vertical plate 42 is arranged on the side of the second locking plate surface 41 away from the cable strand and is vertically connected to the second locking plate surface 41. The vertical plate 42 is used to support between the second locking plate surface 41 and the anchor flange 8 to prevent the second locking plate 4 from falling downward and tilting under force for a long time, resulting in changes in force strength, making it difficult for the center line of the convex anchor 7 to be coaxial with the center line of the cable strand, thereby increasing the supporting stiffness of the locking plate.

[0076] In some optional embodiments, see Figure 1-6 As shown, there are several rectangular pads 5, which are used to fill the excessive gap between the locking plate and the concave pad 6, so that the connection is more stable and is positioned and fixed by the locking plate.

[0077] When the cable strand is tensioned, the rectangular pad 5 allows the cable strand to pass through the third U-shaped notch 51 .

[0078] In some optional embodiments, see Figure 1-7 As shown, the concave pad 6 includes a slot 61 and a second pad surface 63. The slot 61 includes a hollow portion opened on the concave pad 6 and a fourth U-shaped notch opened on the concave pad 6 and connected to the central hole. The diameter of the central hole is equal to the width of the fourth U-shaped notch, which facilitates the rotation and change of orientation of the cable strand and the convex anchor 7.

[0079] An arcuate groove 62 which can rotate in coordination with the convex anchor 7 is provided on the second pad surface 63 , so that the convex anchor 7 can rotate on the concave pad 6 and change its orientation.

[0080] The arc radius and anti-slip coefficient of the arc groove 62 are determined according to the maximum rotation angle required by the actual project. On the horizontal side, the concave pad 6 and the rectangular pad 5 are tightly pressed against each other by the pressure of the cable strands.

[0081] In some optional embodiments, see Figure 1-7 As shown, the interior of the convex anchor 7 is hollow, and the end close to the concave pad 6 is open.

[0082] The cable strand is inserted into the hollow interior of the convex anchor 7 , and an anchor lock is fixed inside the convex anchor 7 , which is connected and fixed to the cable strand through the anchor lock.

[0083] The end of the convex anchor 7 close to the concave pad 6 is an arc-shaped surface that rotates with the concave pad 6, so that the end of the convex anchor 7 close to the concave pad 6 can rotate on the concave pad 6. Its arc radius and anti-slip coefficient are determined according to the maximum rotation angle required by the actual project.

[0084] See also Figure 1-7 As shown, the second aspect of the present application provides a method for a multi-directionally rotating single-beam anchor head structure, comprising the following steps:

[0085] The first step is to weld the upper and lower sides of the pressure plate 1 to the I-shaped anchor flange 8, and then pass the convex anchor 7 together with the cable strand through the circular hole 11 of the pressure plate 1;

[0086] Step 2: Insert the positioning plate 2 along the first U-shaped notch 21 from the side of the cable strand and sleeve it onto the outside of the cable strand;

[0087] Step 3: Then, the second U-shaped notch 31 of the first locking plate 3 is also inserted from the side of the cable strand and sleeved on the outside of the cable strand, and the insertion direction is opposite to that of the positioning plate 2. Bolts are sequentially passed through the second bolt holes 23 of the positioning plate 2 and the first bolt holes 13 of the pressure plate 1 to bolt them together. The second locking plate 4 and the first locking plate 3 are welded and assembled during manufacturing. After the first locking plate 3 is inserted into the outside of the cable strand, the second locking plate 4 is simultaneously placed on the outside of the cable strand and located between the cable strand and the anchor flange 8.

[0088] Step 4: Use the jack to tension the cable strand while using the first locking plate 3 to position it. Then, insert the concave pad 6 through the slot 61 from either side of the cable strand and snap it onto the outside of the cable strand, between the convex anchor 7 and the first locking plate 3.

[0089] Step 5: Insert the rectangular pads 5 on both sides of the cable strand in an interlaced manner and snap them into place on the outside of the cable strand to fill the gap between the first locking plate 3 and the concave pad 6 to prevent them from loosening or shaking.

[0090] Step 6: Then, the cable strand is passed through the convex anchor 7 and connected to the anchor lock, and the arcuate sliding surface between the end of the convex anchor 7 and the concave pad 6 is polished to make the roughness meet the specification;

[0091] Step 7: Finally, a curved sliding body is formed between the convex anchor 7 and the concave pad 6 by the huge cable strand force. When the cable strand and the anchor head have an angular deviation in any direction, the sliding body will adaptively turn to the direction of the cable strand centerline.

[0092] The working principle and process of this application:

[0093] First, weld the two sides of the pressure plate 1 to the I-shaped anchor flanges 8, then pass the convex anchor 7 together with the cable strands through the circular hole 11 of the pressure plate 1;

[0094] Then pass the positioning plate 2 through the cable strand from bottom to top along the first U-shaped notch 21;

[0095] Then, the second U-shaped notch 31 of the first locking plate 3 is inserted from the side of the cable strand and sleeved onto the outside of the cable strand. Bolts are sequentially passed through the second bolt holes 23 of the positioning plate 2 and the first bolt holes 13 of the pressure plate 1 to connect them. The second locking plate 4 and the first locking plate 3 are welded and assembled during manufacturing. After the first locking plate 3 is inserted into the outside of the cable strand, the second locking plate 4 is simultaneously placed on the outside of the cable strand and located between the cable strand and the anchor flange 8.

[0096] The cable strand is tensioned by a jack and positioned using the first locking plate 3. The concave pad 6 is then inserted through the slot 61 from either side of the cable strand and snapped onto the outside of the cable strand, positioned between the convex anchor 7 and the first locking plate 3.

[0097] Then, the rectangular pads 5 are inserted and clamped to the outer sides of the cable strands in an interlaced manner, so as to fill the gap between the first locking plate 3 and the concave pad 6 to prevent them from loosening and shaking.

[0098] Then, the cable strand is passed through the convex anchor 7 and connected to the anchor lock, and the arcuate sliding surface between the end of the convex anchor 7 and the concave pad 6 is polished smooth to ensure that the roughness meets the specification.

[0099] Finally, an arc-shaped sliding body is formed between the convex anchor 7 and the concave pad 6 by the huge cable strand force. When the cable strand and the anchor head have an angular deviation in any direction, the sliding body will adaptively turn to the direction of the cable strand centerline.

[0100] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0101] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0102] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A multi-directional rotating single-beam anchor head structure, characterized in that: include: A pressure plate (1), the pressure plate (1) is used to bear the axial pressure of the cable strand, and both sides of the pressure plate (1) are connected to anchor flanges (8); A positioning plate (2), the positioning plate (2) being used to assist the pressure plate (1) in fixing the cable strands; A locking plate, the locking plate comprising a first locking plate (3) and a second locking plate (4), the first locking plate (3) being used to fix the cable strand again, the second locking plate (4) increasing the supporting stiffness of the locking plate, the second locking plate (4) comprising a second locking plate surface (41) vertically arranged on the first locking plate surface (32) and a side plate (43) vertically arranged on the side of the second locking plate surface (41) away from the first locking plate surface (32), the second locking plate surface (41) being located below the cable strand, a vertical plate (42) being arranged between the side plate (43) and the first locking plate surface (32), the vertical plate (42) being arranged on the side of the second locking plate surface (41) away from the cable strand and being vertically connected to the second locking plate surface (41); A rotating assembly, the rotating assembly comprising a concave pad (6) and a convex anchor (7), the concave pad (6) having an arcuate surface on one side thereof for rotating the convex anchor (7), the convex anchor (7) having an arcuate end portion for sliding and rotating in cooperation with the concave pad (6), the concave pad (6) comprising a slot (61) and a second pad surface (63), the slot (61) comprising a middle hole provided on the concave pad (6) and a fourth U-shaped notch provided on the concave pad (6) and connected to the middle hole, the second pad surface (63) having an arcuate groove (62) for rotating in cooperation with the convex anchor (7); A rectangular pad (5), wherein there are a plurality of rectangular pads (5), each of which comprises a first pad surface (52) and a third U-shaped notch (51) formed on the rectangular pad (5), and wherein the rectangular pad (5) is used to fill an excessively large gap between the locking plate and the concave pad (6), thereby making the structure more stable and being positioned by the locking plate.

2. The multi-directionally rotatable single-beam anchor head structure according to claim 1, characterized in that: The pressure plate (1) comprises a pressure plate surface (12), a circular hole (11) provided on the pressure plate surface (12), and a first bolt hole (13) provided on the pressure plate surface (12) for connection.

3. The multi-directionally rotatable single-beam anchor head structure according to claim 2, characterized in that: The positioning plate (2) comprises a positioning plate surface (22), a first U-shaped notch (21) provided on the positioning plate (2), and a second bolt hole (23) provided on the positioning plate (2).

4. The multi-directionally rotatable single-beam anchor head structure according to claim 3, characterized in that: The first locking plate (3) comprises a first locking plate surface (32), a second U-shaped notch (31) provided on the first locking plate (3), and a third bolt hole (33) provided on the first locking plate (3).

5. The multi-directionally rotatable single-beam anchor head structure according to claim 4, characterized in that: The interior of the convex anchor (7) is a hollow structure, and the end close to the concave pad (6) is open; The convex anchor (7) is provided with an anchor lock connected to the cable strand; One end of the convex anchor (7) close to the concave pad (6) is an arcuate surface that rotates in coordination with the concave pad (6).

6. The multi-directionally rotatable single-beam anchor head structure according to claim 5, characterized in that: The positioning plate (2) is arranged on one side of the pressure plate (1); The first locking plate (3) is arranged on a side of the positioning plate (2) away from the pressure plate (1); The first locking plate (3) is connected to the positioning plate (2) and the pressure plate (1) via bolts; The rectangular pad (5) is vertically arranged on the vertical plate (42); The concave pad (6) is arranged on a side of the rectangular pad (5) away from the first locking plate (3) and is connected thereto; The convex anchor (7) is arranged on a side of the concave pad (6) away from the rectangular pad (5).

7. A method for using a multi-directionally rotating single-beam anchor head structure, characterized in that: The method uses the multi-directionally rotatable single-beam anchor head structure according to claim 6, and the method includes the following steps: First, weld the two sides of the pressure plate (1) to the I-shaped anchor flange (8), and then pass the convex anchor (7) together with the cable strand through the circular hole (11) of the pressure plate (1); Then, the positioning plate (2) is inserted from the side of the cable strand through the first U-shaped notch (21) and is sleeved on the outside of the cable strand; Then, the first locking plate (3) is inserted from the side of the cable strand through the second U-shaped notch (31) and is sleeved on the outside of the cable strand, and bolted together by passing bolts sequentially through the second bolt hole (23) of the positioning plate (2) and the first bolt hole (13) of the pressure plate (1); The cable strand is tensioned by a jack and positioned by a first locking plate (3), and then the concave pad (6) is inserted from the side of the cable strand through the slot (61) and sleeved on the outside of the cable strand; Then, the rectangular pads (5) are inserted into the side of the cable strands in an interlaced manner and snapped onto the outside of the cable strands, so as to fill the gap between the first locking plate (3) and the concave pads (6) and prevent them from loosening and shaking; Then, the cable strand is passed into the convex anchor (7) and connected to the anchor lock, and the arcuate sliding surface between the end of the convex anchor (7) and the concave pad (6) is polished smooth so that the roughness meets the specification; Finally, a curved sliding body is formed between the convex anchor (7) and the concave pad (6) by the huge cable strand force. When the cable strand and the anchor head have an angular deviation in any direction, the sliding body will adaptively turn to the direction of the cable strand centerline.

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