A ground tensioning and anchoring system and method for cable-stayed arch bridges

Abstract

This invention relates to a ground tensioning and anchoring system and method for cable-stayed arch bridges. The system includes a ground anchor, a tensioning and anchoring beam, a sliding component, and a limiting component. The tensioning and anchoring beam is slidably connected to the ground anchor via the sliding component. The limiting component connects the ground anchor and the tensioning and anchoring beam, and limits the maximum sliding position of the tensioning and anchoring beam. During tensioning, the reaction force of the shear force on the cable forces the tensioning and anchoring beam to slide along the sliding component. That is, the angle of the tensioning and anchoring beam is adaptively and finely adjusted with the cable, ensuring that the cable is perpendicular to the anchoring end and only subjected to axial force. The limiting component restricts the maximum sliding position of the tensioning and anchoring beam, ensuring effective connection between the tensioning and anchoring beam and the ground anchor, preventing the tensioning and anchoring system from failing. This invention eliminates the need for a separate dedicated tensioning and anchoring system. The tensioning and anchoring beam, sliding component, and limiting component can be reused, improving versatility and material utilization, simplifying construction, and ensuring construction quality.

Description

Technical Field

[0001] This invention relates to the field of arch bridge construction technology, and in particular to a ground tensioning and anchoring system and method for arch bridge cable-stayed bridges. Background Technology

[0002] Before the cable-stayed arch bridge is typically installed, the ground anchor is poured first, and the cable-stayed cable insertion holes and tensioning slots are reserved according to the cable angle. During the cable-stayed arch bridge installation, the entire cable bundle is passed through the reserved tensioning slots through the main ground anchor. After the anchorage is installed, the cable bundle is tensioned to the design force value to complete the cable tensioning work.

[0003] Traditional ground tensioning and anchoring systems require the design of tension slots based on the tensioning angle, and the anchor installation angle is fixed. In actual construction, factors such as tower misalignment and cable sag often cause the cable angle to differ from the design. In such cases, the anchor cannot adapt to the actual cable angle, easily causing the steel strands to break, thus affecting construction quality. Furthermore, general tensioning anchors are difficult to adapt to continuous cables, and the quality of on-site fabricated tensioning and anchoring beams is often inconsistent. Summary of the Invention

[0004] The purpose of this invention is to address the problems of existing arch bridge cable ground tensioning and anchoring systems, such as the fixed angle of the ground tensioning end, which is inconsistent with the cable setting angle, leading to cable bending and wear, and the cable being subjected to shear force. In addition, the existing continuous cable tensioning and anchoring beams are not universal, making it difficult to guarantee construction quality and material utilization. This invention provides an arch bridge cable ground tensioning and anchoring system and method.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides a ground tensioning and anchoring system for an arch bridge cable-stayed bridge, comprising a ground anchor, a tensioning and anchoring beam, a sliding component, and a limiting component. The tensioning and anchoring beam is slidably connected to the ground anchor via the sliding component, and the limiting component connects the ground anchor and the tensioning and anchoring beam. The limiting component is used to limit the maximum sliding position of the tensioning and anchoring beam.

[0007] The ground tensioning and anchoring system for arch bridge cables described in this invention utilizes a sliding component to allow the tensioning and anchoring beam to slide relative to the ground anchor. When the tensioning and anchoring beam is used to tension the cable, if the angle of the cable and the angle of the tensioning and anchoring beam are inconsistent, the tensioning and anchoring beam causes the cable to bend. The bend applies shear force to the cable, and the reaction force of this shear force during tensioning compels the tensioning and anchoring beam to slide along the sliding component. In other words, the angle of the tensioning and anchoring beam adaptively adjusts with the cable, eliminating shear force and ensuring that the cable is perpendicular to the anchoring end. Subjected only to axial force, this system avoids bending and wear of the cable. The maximum slippage of the tension anchor beam is limited by the limiting component, ensuring effective connection between the tension anchor beam and the ground anchor, thus preventing system failure. Furthermore, this tension anchor system can adapt to different cable setting angles, eliminating the need for a separate, dedicated tension anchor system. The tension anchor beam, the slippage component, and the limiting component are reusable, improving versatility and material utilization, simplifying construction, and ensuring construction quality. This tension anchor system has a simple structure, is easy to use, and delivers excellent results.

[0008] As a preferred embodiment of the present invention, the sliding path of the sliding component is arc-shaped.

[0009] With this structure, the tension anchor beam moves along an arc-shaped sliding path, meaning the tension anchor beam can rotate at an angle, quickly matching the angle of the buckle setting, and facilitating the adaptive adjustment of the tension anchor beam.

[0010] As a further preferred technical solution of the present invention, the sliding component includes a pre-embedded anchor, an arc-shaped support and a sliding groove. The arc-shaped support is connected to the pre-embedded anchor, the pre-embedded anchor is embedded in the ground anchor, the sliding groove is connected to the tension anchor beam, and the arc-shaped support is slidably fitted in the sliding groove. The arc-shaped support has a convex arc structure, which is thick in the middle and thin at both ends.

[0011] With this structure, by setting the arc-shaped support and the sliding groove, the arc-shaped support is matched in the sliding groove, so that the tension anchor beam can only rotate along the arc direction of the arc-shaped support and cannot be displaced laterally. This restricts the degree of freedom of the tension anchor beam and avoids the tension anchor beam from slipping laterally, thus preventing safety accidents.

[0012] As a further preferred technical solution of the present invention, the limiting component includes a limiting rod, the limiting rod is connected to the tensioning anchor beam, the limiting rod is rotatably connected to the ground anchor, and the rotation direction of the limiting rod is consistent with the arc surface setting direction of the arc surface support.

[0013] With this structure, the limiting tie rod is hinged to the ground anchor, and the rotation direction of the limiting tie rod is consistent with the arc surface setting direction of the arc surface support. This allows the limiting tie rod to change angle with the rotation of the tension anchor beam. The limiting tie rod holds the tension anchor beam and the ground anchor, making the tension anchor beam and the ground anchor relatively stable.

[0014] As a further preferred technical solution of the present invention, the limiting component further includes a limiting hole, the limiting hole being disposed on the ground anchor, the limiting rod being L-shaped, one end of the limiting rod being connected to the tensioning anchor beam, and the other end extending into the limiting hole.

[0015] With this structure, the limiting hole on the ground anchor is matched with one end of the L-shaped limiting rod to achieve a rotatable connection between the limiting rod and the ground anchor.

[0016] As a further preferred technical solution of the present invention, the tensioning anchor beam rotates around the circumference, the arc surface of the arc support is a circumferential surface, and the limiting hole is located at the center of the rotation.

[0017] With this structure, by setting the arc-shaped support and the limiting hole to be circular, and setting the limiting rod to a fixed radius, it is ensured that the tensioning anchor beam always fits on the arc surface of the arc-shaped support during rotation, and the tensioning anchor beam always exerts force on the ground anchor, thus ensuring the effective operation of the tensioning anchoring system.

[0018] As a further preferred technical solution of the present invention, the ground anchor is provided with a reserved tensioning groove, and a limiting hole is provided on each of the two opposite side walls of the reserved tensioning groove. The reserved tensioning groove is used to arrange at least one fastening cable.

[0019] This structure provides two positions for the limiting holes, thus providing two limiting components and improving the stability of the sliding connection between the tensioned anchor beam and the ground anchor.

[0020] As a further preferred technical solution of the present invention, a sliding component is respectively provided on the ground anchor on both sides of the reserved tensioning groove, the tensioning anchor beam spans the reserved tensioning groove, and a sliding component is respectively connected to both ends of the tensioning anchor beam.

[0021] With this structure, the tension anchor beam bridge is placed on both sides of the reserved tension groove. By setting two sliding components, both ends of the tension anchor beam are effectively connected to the ground anchor through a sliding component, thereby improving the stability of the sliding connection between the tension anchor beam and the ground anchor.

[0022] As a further preferred technical solution of the present invention, the buckle is anchored to the tension anchor beam by an anchor.

[0023] Secondly, the present invention also provides a method for ground tensioning and anchoring of arch bridge cables, utilizing the ground tensioning and anchoring system for arch bridge cables as described above, the method comprising the following steps:

[0024] S1. The pre-embedded anchors and the limiting holes are pre-embedded according to the design position, and the ground anchor is cast into shape.

[0025] S2. Install the arc-shaped support on the pre-embedded anchor, install the sliding groove on the tension anchor beam, and set the L-shaped limiting rod in the limiting hole. The sliding groove matches the arc-shaped support, and the limiting rod is detachably connected to the tension anchor beam to temporarily fix the tension anchor beam.

[0026] S3. Pull the tensioning end of the buckle to the ground anchor. The buckle passes through the reserved tensioning groove and the tensioning anchor beam in sequence. Release the temporary fixation of the tensioning anchor beam. After tensioning the buckles one by one, anchor them to the tensioning anchor beam through the anchor. During the tensioning process, the tensioning anchor beam rotates adaptively on the arc support.

[0027] The present invention employs a ground tensioning and anchoring method for arch bridge cables. By configuring the arc-shaped support and the sliding groove, the tensioning anchoring beam can slide relative to the ground anchor. When the tensioning anchoring beam is used to tension and anchor the cables, if the cable's setting angle is inconsistent with the anchoring beam's setting angle, the anchoring beam causes the cable to bend. The bend applies shear force to the cable. During tensioning, the reaction force of the shear force on the cable forces the anchoring beam to slide along the arc surface of the arc-shaped support. In other words, the setting angle of the anchoring beam adaptively adjusts with the cable, eliminating shear force and ensuring the cable's stability relative to the ground anchor. The anchoring end is vertical and only subjected to axial force, avoiding bending and wear of the cable. The maximum slippage position of the tensioned anchoring beam is limited by the limiting tie rod, ensuring effective connection between the tensioned anchoring beam and the ground anchor, and preventing failure of the tensioned anchoring system. Simultaneously, this tensioned anchoring system can adapt to different cable setting angles, eliminating the need for a separate dedicated tensioned anchoring system. The tensioned anchoring beam, the slip component, and the limiting component are reusable, improving versatility and material utilization, simplifying construction, and ensuring construction quality. This tensioned anchoring method is simple to follow, easy to operate, and effective.

[0028] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0029] 1. The ground tensioning and anchoring system for arch bridge cables according to the present invention, by setting the sliding component, allows the tensioning anchoring beam to slide relative to the ground anchor. When the tensioning anchoring beam is used to tension and anchor the cables, if the setting angle of the cables is inconsistent with the setting angle of the tensioning anchoring beam, the tensioning anchoring beam causes the cables to bend. The bend applies shear force to the cables. During tensioning, the reaction force of the shear force on the cables forces the tensioning anchoring beam to slide along the sliding component. That is, the setting angle of the tensioning anchoring beam adaptively fine-tunes with the cables, eliminating shear force and ensuring that the cables are perpendicular to the anchoring end. This system operates under axial force only, preventing cable bending and wear. The maximum slippage of the tension anchor beam is limited by the limiting component, ensuring effective connection between the tension anchor beam and the ground anchor, thus preventing system failure. Furthermore, this tension anchor system can adapt to different cable setting angles, eliminating the need for a separate, dedicated system. The tension anchor beam, slippage component, and limiting component are reusable, improving versatility and material utilization, simplifying construction, and ensuring construction quality. The system is simple in structure, easy to use, and effective.

[0030] 2. The ground tensioning and anchoring method for arch bridge cables described in this invention, through the cooperation of the arc-shaped support and the sliding groove, allows the tensioning anchoring beam to slide relative to the ground anchor. When the tensioning anchoring beam is used to tension and anchor the cable, if the angle of the cable setting is inconsistent with the angle of the tensioning anchoring beam, the tensioning anchoring beam causes the cable to bend. The bend applies shear force to the cable. During tensioning, the reaction force of the shear force on the cable forces the tensioning anchoring beam to slide along the arc surface of the arc-shaped support. That is, the setting angle of the tensioning anchoring beam adaptively adjusts with the cable, eliminating shear force and ensuring the cable is in contact with the ground anchor. The anchoring end is vertical and only subjected to axial force, avoiding bending and wear of the cable. The maximum slippage position of the tensioned anchoring beam is limited by the limiting tie rod, ensuring effective connection between the tensioned anchoring beam and the ground anchor, and preventing failure of the tensioned anchoring system. Simultaneously, this tensioned anchoring system can adapt to different cable setting angles, eliminating the need for a separate dedicated tensioned anchoring system. The tensioned anchoring beam, the slip component, and the limiting component are reusable, improving versatility and material utilization, simplifying construction, and ensuring construction quality. This tensioned anchoring method is simple to follow, easy to operate, and effective. Attached Figure Description

[0031] Figure 1 A schematic plan view of the ground tensioning and anchoring system for the cable-stayed arch bridge.

[0032] Figure 2 This is a schematic elevation view of the ground tensioning and anchoring system for the cable-stayed arch bridge.

[0033] The markings in the diagram are: 1-Ground anchor, 2-Pre-reserved tension groove, 3-Tension anchor beam, 4-Pre-embedded anchor, 5-Arc support, 6-Slide groove, 7-Limiting tie rod, 8-Limiting hole, 9-Clamping cable, 10-Anchor. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the accompanying drawings.

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] Example 1

[0037] like Figure 1 and Figure 2 As shown, the ground tensioning and anchoring system for arch bridge cable-stayed bridges according to the present invention includes a ground anchor 1, a tensioning and anchoring beam 3, a sliding component, and a limiting component.

[0038] In this embodiment, as Figure 1 As shown, the ground anchor 1 is provided with a reserved tension groove 2, which is used for at least one buckle 9 to pass through. On the end face of the ground anchor 1 on both sides of the reserved tension groove 2, a sliding component is respectively provided, and a limiting component is respectively provided on two opposite side walls in the reserved tension groove 2.

[0039] Specifically, the sliding assembly includes a pre-embedded anchor 4, an arc-shaped support 5, and a sliding groove 6. The pre-embedded anchor 4 is embedded in the ground anchor 1 and includes a pre-embedded steel plate and a shear key. The pre-embedded steel plate is embedded in the surface of the ground anchor 1, and the shear key is embedded in the ground anchor 1. The arc-shaped support 5 is a steel support and is connected to the pre-embedded anchor 4. It can be pre-bolted or welded. The arc-shaped support 5 has a convex arc structure, thick in the middle and thin at both ends. Figure 1 As shown, a groove 6 is connected to each end of the side of the tensioning anchor beam 3 along its length. The tensioning anchor beam 3 is configured to span the reserved tensioning groove 2. Figure 2As shown, the length of the chute 6 is equal to the thickness of the tension anchor beam 3. The arc-shaped support 5 is slidably fitted in the chute 6. The length of the arc-shaped support 5 is greater than the length of the chute 6. Through the cooperation of the chute 6 and the arc-shaped support 5, the chute 6 can rotate and slide along the length direction of the arc-shaped support 5 (i.e., the arc setting direction). However, in the width direction of the arc-shaped support 5 (i.e., the transverse direction of the chute 6), no displacement can occur due to the cooperation between the two. Therefore, the sliding path of the sliding component is arc-shaped. The tension anchor beam 3 can rotate relative to the ground anchor 1 at a certain angle under the cooperation of the chute 6 and the arc-shaped support 5. With this structure, by setting the arc-shaped support 5 and the chute 6, the arc-shaped support 3 can rotate... The surface support 5 is matched in the sliding groove 6, so that the tension anchor beam 3 can only rotate along the arc direction of the arc surface support 5, and cannot be laterally misaligned, thus restricting the degree of freedom of the tension anchor beam 3 and preventing the tension anchor beam 3 from slipping laterally and causing safety accidents. The tension anchor beam 3 is bridged on both sides of the reserved tension groove 2. By setting two sliding components, both ends of the tension anchor beam 3 are effectively connected to the ground anchor 1 through a sliding component, improving the stability of the sliding connection between the tension anchor beam 3 and the ground anchor 1. The tension anchor beam 3 moves along the arc-shaped sliding path, that is, the tension anchor beam 3 can rotate at an angle, quickly matching the angle set by the buckle 9, and facilitating the adaptive adjustment of the tension anchor beam 3.

[0040] Specifically, the limiting assembly includes a limiting rod 7 and a limiting hole 8. The limiting hole 8 is provided on each of the two opposite sidewalls of the pre-reserved tension groove 2. The limiting rod 7 is L-shaped, with an external thread fitted onto one end of the rod body and the other end extending into the limiting hole 8. Figure 1As shown, the tension anchor beam 3 has a through hole, and the threaded end of the limiting rod 7 passes through the through hole. The limiting rod 7 is detachably connected to the tension anchor beam 3 by a nut. The limiting rod 7 is rotatably connected to the ground anchor 1 through the limiting hole 8. The rotation direction of the limiting rod 7 is consistent with the arc surface setting direction of the arc surface support 5. Therefore, the limiting rod 7 pulls the tension anchor beam 3, limiting its maximum slippage position. With this structure, the limiting rod 7 is hinged to the ground anchor 1, and the rotation direction of the limiting rod 7... The direction of the limiting rod 7 is aligned with the arc surface of the arc support 5, allowing the angle of the limiting rod 7 to change with the rotation of the tension anchor beam 3. The limiting rod 7 holds the tension anchor beam 3 and the ground anchor 1, making them relatively stable. By setting the limiting hole 8 on the ground anchor 1 and cooperating with one end of the L-shaped limiting rod 7, the limiting rod 7 and the ground anchor 1 are rotatably connected. Two positions for setting the limiting hole 8 are provided, that is, two limiting components can be provided, improving the stability of the sliding connection between the tension anchor beam 3 and the ground anchor 1.

[0041] Specifically, the buckle 9 passes through the reserved tensioning groove 2 and the tensioning anchor beam 3 in sequence, and is anchored to the tensioning anchor beam 3 by the anchor 10.

[0042] In one specific embodiment, the tension anchor beam 3 rotates circumferentially, the arc surface of the arc support 5 is a circumferential surface, and the limiting hole 8 is located at the center of rotation. With this structure, by setting the arc support 5 and the limiting hole 8 to be concentric, the limiting rod 7 is set with a fixed radius, ensuring that the tension anchor beam 3 always engages with the arc surface of the arc support 5 during rotation, and the tension anchor beam 3 always exerts force on the ground anchor 1, ensuring the effective operation of the tension anchor system.

[0043] This embodiment describes a ground tensioning and anchoring system for an arch bridge cable-stayed bridge. By setting the sliding component, the tensioning and anchoring beam 3 can slide relative to the ground anchor 1. When the tensioning and anchoring beam 3 is used to tension and anchor the cable 9, if the angle of the cable 9 is inconsistent with the angle of the tensioning and anchoring beam 3, the tensioning and anchoring beam 3 causes the cable 9 to bend. The bend applies shear force to the cable 9. During tensioning, the reaction force of the shear force on the cable 9 forces the tensioning and anchoring beam 3 to slide along the sliding component. That is, the angle of the tensioning and anchoring beam 3 adaptively fine-tunes with the cable 9, eliminating shear force and ensuring the cable 9 remains firmly anchored. With its end perpendicular and subjected only to axial force, the tension anchor beam 3 avoids bending and wear of the buckle 9. The maximum slippage of the tension anchor beam 3 is limited by the limiting component, ensuring effective connection between the tension anchor beam 3 and the ground anchor 1 and preventing system failure. Simultaneously, this tension anchor system can adapt to different buckle 9 setting angles, eliminating the need for a separate dedicated tension anchor system. The tension anchor beam 3, the slip component, and the limiting component are reusable, improving versatility and material utilization, simplifying construction, and ensuring construction quality. This tension anchor system has a simple structure, is easy to use, and performs well.

[0044] Example 2

[0045] like Figure 1 and Figure 2 As shown, the present invention provides a ground tensioning and anchoring method for arch bridge cables, utilizing the ground tensioning and anchoring system for arch bridge cables as described in Example 1. The method includes the following steps:

[0046] S1. The pre-embedded anchor 4 and the limiting hole 8 are pre-embedded according to the design position, and the ground anchor 1 is cast into shape.

[0047] S2. Install the arc-shaped support 5 on the pre-embedded anchor 4, install the sliding groove 6 on the tension anchor beam 3, and set the L-shaped limiting rod 7 in the limiting hole 8. The sliding groove 6 matches the arc-shaped support 5, and the limiting rod 7 is detachably connected to the tension anchor beam 3 to temporarily fix the tension anchor beam 3.

[0048] S3. Pull the tensioning end of the buckle 9 to the ground anchor 1. The buckle 9 passes through the reserved tensioning groove 2 and the tensioning anchor beam 3 in sequence. Release the temporary fixation of the tensioning anchor beam 3. After tensioning the buckles 9 one by one, anchor them to the tensioning anchor beam 3 through the anchor 10. During the tensioning process, the tensioning anchor beam 3 rotates adaptively on the arc support 5.

[0049] This embodiment describes a ground tensioning and anchoring method for an arch bridge cable. By coordinating the arc-shaped support 5 and the sliding groove 6, the tensioning anchoring beam 3 can slide relative to the ground anchor 1. When the tensioning anchoring beam 3 is used to tension and anchor the cable 9, if the angle of the cable 9 is inconsistent with the angle of the tensioning anchoring beam 3, the tensioning anchoring beam 3 causes the cable 9 to bend. The bend applies shear force to the cable 9. During tensioning, the reaction force of the shear force on the cable 9 forces the tensioning anchoring beam 3 to slide along the arc surface of the arc-shaped support 5. In other words, the angle of the tensioning anchoring beam 3 adaptively fine-tunes with the cable 9, eliminating shear force and ensuring... The ligature 9 is perpendicular to the anchoring end and is only subjected to axial force, preventing bending and wear. The maximum slippage position of the tension anchoring beam 3 is limited by the limiting tie rod 7, ensuring effective connection between the tension anchoring beam 3 and the ground anchor 1 and preventing failure of the tension anchoring system. Simultaneously, this tension anchoring system can adapt to different ligature 9 setting angles, eliminating the need for a separate dedicated tension anchoring system. The tension anchoring beam 3, the slip component, and the limiting component are reusable, improving versatility and material utilization, simplifying construction, and ensuring construction quality. This tension anchoring method is simple, easy to operate, and effective.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A ground tensioning and anchoring system for cable-stayed arch bridges, characterized in that, It includes a ground anchor (1), a tension anchor beam (3), a sliding component and a limiting component. The tension anchor beam (3) is slidably connected to the ground anchor (1) through the sliding component. The limiting component connects the ground anchor (1) and the tension anchor beam (3). The limiting component is used to limit the maximum sliding position of the tension anchor beam (3). The sliding path of the sliding component is arc-shaped; The sliding assembly includes a pre-embedded anchor (4), an arc-shaped support (5), and a sliding groove (6). The arc-shaped support (5) is connected to the pre-embedded anchor (4), which is embedded in the ground anchor (1). The sliding groove (6) is connected to the tension anchor beam (3). The arc-shaped support (5) is slidably fitted in the sliding groove (6). The arc-shaped support (5) has a convex arc surface structure. The limiting component includes a limiting rod (7), which is connected to the tension anchor beam (3) and rotatably connected to the ground anchor (1). The rotation direction of the limiting rod (7) is consistent with the arc setting direction of the arc support (5).

2. The ground tensioning and anchoring system for arch bridge cables according to claim 1, characterized in that, The limiting component also includes a limiting hole (8), which is located on the ground anchor (1). The limiting rod (7) is L-shaped, with one end connected to the tension anchor beam (3) and the other end extending into the limiting hole (8).

3. The ground tensioning and anchoring system for arch bridge cables according to claim 2, characterized in that, The tension anchor beam (3) rotates around the circumference, the arc surface of the arc support (5) is a circumferential surface, and the limiting hole (8) is located at the center of rotation.

4. The ground tensioning and anchoring system for arch bridge cables according to claim 3, characterized in that, The ground anchor (1) is provided with a reserved tensioning groove (2), and a limiting hole (8) is provided on each of the two opposite side walls of the reserved tensioning groove (2). The reserved tensioning groove (2) is used to arrange at least one fastening cable (9).

5. The ground tensioning and anchoring system for arch bridge cables according to claim 4, characterized in that, A sliding component is respectively installed on the ground anchor (1) on both sides of the reserved tensioning groove (2), the tensioning anchor beam (3) spans the reserved tensioning groove (2), and a sliding component is respectively connected to both ends of the tensioning anchor beam (3).

6. The ground tensioning and anchoring system for arch bridge cables according to claim 5, characterized in that, The sling (9) is anchored to the tension anchor beam (3) by the anchor (10).

7. A method for ground tensioning and anchoring of cable-stayed arch bridges, characterized in that, The method using the ground tensioning and anchoring system for arch bridge cables as described in claim 6 includes the following steps: S1. The pre-embedded anchor (4) and the limiting hole (8) are pre-embedded according to the design position, and the ground anchor (1) is cast to form; S2. Install the arc-shaped support (5) on the pre-embedded anchor (4), install the sliding groove (6) on the tension anchor beam (3), set the L-shaped limiting rod (7) in the limiting hole (8), the sliding groove (6) matches the arc-shaped support (5), the limiting rod (7) is detachably connected to the tension anchor beam (3) to temporarily fix the tension anchor beam (3); S3. Pull the tensioning end of the buckle (9) to the ground anchor (1). The buckle (9) passes through the reserved tensioning groove (2) and the tensioning anchor beam (3) in sequence. Release the temporary fixation of the tensioning anchor beam (3). After tensioning the buckle (9) one by one, anchor it to the tensioning anchor beam (3) through the anchor (10). During the tensioning process, the tensioning anchor beam (3) rotates adaptively on the arc support (5).

Images