WO2021017581A1

WO2021017581A1 - Anchoring apparatus that adapts to longitudinal movement of structure and installation method

Info

Publication number: WO2021017581A1
Application number: PCT/CN2020/091010
Authority: WO
Inventors: 秦顺全; 高宗余; 王恒; 徐伟; 陆勤丰; 傅战工; 胡骏; 郑清刚; 苑仁安; 李少骏; 付岚岚; 张皓清; 李毓龙; 周子明
Original assignee: 中铁大桥勘测设计院集团有限公司
Priority date: 2019-07-26
Filing date: 2020-05-19
Publication date: 2021-02-04
Also published as: EP4006231A1; EP4006231A4; CN110485253B; CN110485253A

Abstract

An anchoring apparatus that adapts to the longitudinal movement of a structure and installation method therefor. The anchoring apparatus that adapts to the longitudinal movement of a structure comprises a flared steel casing tube (1) and a cable guide pipe (8); a cable (6) is threaded through the inside of the cable guide pipe (8), the cable (6) being fixed to an end of the cable guide pipe (8) by means of a cable seal tube (7); the flared steel casing tube (1) is located within the cable guide pipe (8); the inner diameter of the flared steel casing tube (1) gradually lengthens along the direction leading away from the cable seal tube (7); the outer wall of the flared steel casing tube (1) is fixed to the inner wall of the cable guide pipe (8). The installation method for the anchoring apparatus that adapts to the longitudinal movement of a structure comprises the following steps: machining the flared steel casing tube (1) according to the designed horizontal curve; inserting the flared steel casing tube (1) into the cable guide pipe (8) and fixedly connecting same to the inner wall of the cable guide pipe (8), forming an integral body; threading the cable (6) through the inside of the cable guide pipe (8) and performing tensioning. The anchoring apparatus that adapts to the longitudinal movement of a structure increases the contact area of the outer wall of the cable (6) and the inner wall of the flared steel casing tube (1), preventing part of the cable (6) from being subjected to a concentrated cutting force, improving the safety of the anchoring system.

Description

Anchoring device adapted to longitudinal movement of structure and installation method

Technical field

The invention relates to the technical field of bridge anchoring, in particular to an anchoring device and an installation method adapted to the longitudinal movement of the structure.

Background technique

With the development of cable-stayed bridges at home and abroad, their spans are getting bigger and bigger, and the ratio of the main span to the side span is getting bigger and bigger. The cable-stayed bridge has a complex structural system with many influencing factors. The installation of auxiliary piers on the side span can reduce the cantilever length and increase the overall rigidity of the structure during side span construction, thereby reducing the internal force of the main girder and the bottom of the bridge in the completed state. The bending moment, the deflection of the tower top, the vertical deformation of the main beam, and the cable stress make the structural force tend to be in a reasonable state. In order to prevent the rigidity of the main span structure of the cable-stayed bridge from being affected by the deflection of the main girder of the side span, a link is often set at the anchor point of the side span cable to connect to the lower auxiliary pier, so that the tension generated by the vertical component of the cable force can be Bearing directly by the auxiliary pier, the deflection of the main beam of the side span is reduced and the rigidity of the main span is greatly improved.

However, the treatment of the negative reaction force of the auxiliary pier of the cable-stayed bridge has always been a key node in whether the bridge type scheme is established. Anchoring the main girder to the auxiliary pier column through cables is one of the most efficient and economical schemes. However, the key problem of this scheme is that if the main girder is longitudinally displaced after anchoring, as shown in Figure 5, the anchoring device The port of the cable 6 and the cable sealing cylinder 7 will be subjected to a relatively large concentrated cutting force, and the cable 6 will be exposed to a large concentrated cutting force for a long time and is prone to abrasion and fracture, which seriously affects the safety of the anchoring system. Therefore, the existing anchoring scheme can only be applied to small and medium-span bridges with small anchoring force and short longitudinal displacement, and cannot meet the needs of large-span main girder anchoring. At present, there is no solution to the anchoring structure that can adapt to the longitudinal movement of the structure.

Summary of the invention

The purpose of the present invention is to overcome the influence of the longitudinal displacement of the main girder on the existing anchoring device in the above-mentioned background art. The port of the cable and the cable sealing cylinder will receive a greater concentrated cutting force, and the cable will be subject to relatively long time. A large concentrated cutting force is prone to hidden dangers of wear and fracture, which seriously affects the safety of the anchoring system. An anchoring device and an installation method adapted to the longitudinal movement of the structure are provided.

The present invention provides an anchoring device adapted to the longitudinal movement of a structure, which is characterized in that it comprises:

A cable catheter, a cable is passed through the cable catheter, and the cable is fixedly connected to one end of the cable catheter through a cable sealing tube;

The flared steel protective tube, the flared steel protective tube is located in the cable conduit, the inner diameter of the flared steel protective tube gradually increases in the direction away from the cable sealing tube, the outer wall of the flared steel protective tube and the inner wall of the cable conduit Fixed connection.

The preferred solution: between the outer wall of the flared steel protective tube and the inner wall of the cable guide tube is provided with a hoop stiffener and a radial stiffener. The hoop stiffener is annular, and the radial stiffener is elongated. The stiffener and the radial stiffener are fixedly connected with the outer wall of the flared steel protective cylinder and the inner wall of the cable guide.

The preferred solution: the radial stiffeners are not less than eight, and the radial stiffeners are evenly arranged along the circumference of the outer wall of the horn-shaped steel protective tube. There are multiple circumferential stiffeners, and the multiple circumferential stiffeners are arranged along the The horn-shaped steel protective tube is evenly spaced in the axial direction, and the inner diameter of the multiple hoop stiffeners gradually increases in the direction away from the cable sealing tube, and the distance between two adjacent hoop stiffeners is not more than 200mm .

The preferred solution: the axis of the flared steel protective tube is collinear with the axis of the cable guide tube, and the inner surface of the flared steel protective tube is a flat curve formed by a combination of straight and circular curves around the axis of the flared steel protective tube It is formed by rotating 360 degrees, and the distance from the circular curve to the axis of the horn-shaped steel protective tube is the radius R of the circular curve;

The inner surface of the horn-shaped steel protective tube is provided with a rubber pad, the rubber pad is attached to the inner wall of the horn-shaped steel protective tube, and the outer wall of the cable is attached to the rubber pad.

Preferred solution: The straight line of the flat curve is parallel to the axis of the trumpet-shaped steel protective tube, and the length of the straight line is not less than 200mm. The distance from the straight line to the axis of the trumpet-shaped steel protective tube is the radius of the cable, the thickness of the rubber pad, and 3mm. The sum of manufacturing errors.

The preferred solution: the straight line of the flat curve is tangent to the circular curve, and the radius of the circular curve R≥P/q, where P is the cable force, and q is the radial bearing capacity of the flared steel casing; the length of the circular curve L≥ 2SR/H, where S is the longitudinal movement of the cable, and H is the height difference between the upper and lower anchor points of the cable.

A preferred solution: one end of the cable guide tube is welded with an anchor backing plate, the other end of the cable guide tube is welded with an anchor plate, both ends of the outer wall of the horn-shaped steel protective tube are respectively provided with end circumferential stiffeners, and end rings The radial stiffening rib is welded to the inner wall of the cable guide tube, and the circumferential stiffening rib and the radial stiffening rib are attached to the inner wall of the cable guide tube.

A preferred solution: the flared steel protective tube is located at one end away from the cable sealing tube in the cable conduit, and the flared steel protective tube is located outside the cable sealing tube.

The preferred solution: the structural material yield strength of the horn-shaped steel protective tube is not less than 345MPa.

Another aspect of the present invention provides an installation method of an anchoring device adapted to longitudinal movement of a structure, which includes the following steps:

The cable catheter is composed of a proximal anchor section and a distal anchor section. The cable catheter is divided into a proximal anchor section and a distal anchor section to facilitate the welding of the end circumferential stiffener with the cable catheter;

The horn-shaped steel protective tube is processed according to the designed flat curve, and the rubber pad is attached to the inner wall of the flared steel protective tube;

Weld radial stiffeners, circumferential stiffeners and end circumferential stiffeners on the outer wall of the flared steel protective tube in the set sequence;

Sleeve part of the flared steel protective tube into the near anchor section of the cable conduit, and weld the end of one end of the flared steel protective tube to the inner wall of the cable conduit according to the set position;

Sleeve the distal anchor section of the cable catheter, weld the proximal and distal anchor sections of the cable catheter into a whole, and ensure that the axes of the proximal and distal anchor sections coincide;

Connect the circumferential stiffening rib at the other end of the flared steel protective tube to the inner wall of the cable duct by welding, and the flared steel protective tube and the cable duct form a whole;

Weld an anchor backing plate on one end of the cable duct, and weld the anchor plate on the other end of the cable duct;

Insert the cable into the cable catheter for tensioning.

Based on the above technical solutions, compared with the prior art, the advantages of the present invention are as follows:

1) An anchoring device adapted to the longitudinal movement of the structure of the present invention. The anchoring device is provided with a flared steel protective tube adapted to the longitudinal deviation of the cable in the cable guide tube. The inner surface of the flared steel protective tube is composed of straight lines and circles. The flat curve formed by the curve combination is formed by rotating 360 degrees around the axis of the horn-shaped steel casing. When the cable follows the main beam to deviate longitudinally, the outer wall of the cable is in close contact with the inner wall of the flared steel protective tube to limit the deviation of the port of the cable and the cable sealing tube, and the cable and the cable sealing tube The concentrated cutting force of the port is transferred to the flared steel protective tube. Because the horn-shaped steel protective tube increases the contact area between the outer wall of the cable and the inner wall of the horn-shaped steel protective tube, the local part of the cable body is prevented from being subjected to a large concentrated cutting force, and the safety of the anchoring system is improved.

2) An anchoring device adapted to the longitudinal movement of the structure of the present invention. The anchoring device is attached with a rubber pad on the inner wall of the horn-shaped steel protective cylinder. The rubber pad has good flexibility and wear resistance. The outer wall of the cable When in contact with the rubber pad, the surface wear of the cable can be significantly reduced, and the outer wall of the cable can be protected. The anchoring device welds radial stiffeners, hoop stiffeners and end hoop stiffeners on the outer wall of the flared steel casing in a set sequence. The radial stiffeners, hoop stiffeners and end hoop stiffeners make The cable conduit and the horn-shaped steel protective tube form a whole, which significantly improves the structural strength of the flared steel protective tube and improves the durability of the flared steel protective tube.

3) An anchoring device adapted to the longitudinal movement of the structure of the present invention. The anchoring device needs to be specially designed in the circular curve section of the flared steel protective tube, and its circular curve radius R is not less than the cable force P and the diameter of the flared steel protective tube The ratio of the bearing capacity q; the length L of the circular curve is not less than 2 times the longitudinal displacement of the cable S multiplied by the radius R of the horn-shaped steel protective tube and divided by the height difference H between the upper and lower anchor points of the cable. The size and shape of the horn-shaped steel protective tube of the anchoring device are obtained through precise calculation of mechanics, and meet the performance requirements of the anchoring device.

Description of the drawings

Figure 1 is a schematic structural diagram of an embodiment of the present invention;

Figure 2 is a cross-sectional view along the A-A direction in Figure 1;

Figure 3 is a cross-sectional view along the B-B direction in Figure 1;

4 is a schematic diagram of the longitudinal movement of the cable after using the embodiment of the present invention;

Fig. 5 is a schematic diagram of the longitudinal movement of the cable in the background art.

Reference signs: 1-flared steel protective tube, 2-end circumferential stiffener, 3-circumferential stiffener, 4-radial stiffener, 5-rubber pad, 6-cable, 7-cable dense Sealing cylinder, 8-cable catheter, 9-seal anchor plate, 10-anchor backing plate.

Detailed ways

The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

It should be noted that the embodiments in this application and the features in the embodiments can be combined with each other if there is no conflict. The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any restriction on the application and its application or use. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Example 1

Referring to Figures 1 to 3, an embodiment of the present invention provides an anchoring device adapted to the longitudinal movement of a structure, including:

The cable guide tube 8 is a cylindrical steel pipe structure. A cable 6 is inserted into the cable tube 8. One end of the cable 6 is fixedly connected to one end of the cable tube 8 through a cable sealing tube 7.

The flared steel protective tube 1 is located in the cable guide tube 8. The flared steel protective tube 1 is located in the cable tube 8 at one end away from the cable sealing tube 7, and the flared steel protective tube 1 is located in the cable Seal the outside of the cylinder 7. The inner diameter of the flared steel protective tube 1 gradually increases in the direction away from the cable sealing tube 7, and the outer wall of the flared steel protective tube 1 is fixedly connected with the inner wall of the cable guide 6. Figure 2 is a cross-sectional view along the AA direction in Figure 1, and Figure 3 is a cross-sectional view along the BB direction in Figure 1, in order to highlight the cross-section of the flared steel protective tube 1 in Figure 3 and the cross-section of the flared steel protective tube 1 in Figure 2 The cross section of the horn-shaped steel protective tube 1 in Fig. 3 has been enlarged instead of the actual size. The axis of the flared steel protective tube 1 is collinear with the axis of the cable guide tube 8. The inner surface of the flared steel protective tube 1 is a flat curve formed by a combination of straight lines and circular curves, which rotates 360 degrees around the axis of the flared steel protective tube 1 Formed, the distance from the circular curve to the axis of the horn-shaped steel protective tube 1 is the radius R of the circular curve.

The straight line of the horizontal curve is tangent to the circular curve, the radius of the circular curve R≥P/q, where P is the cable force, and q is the radial bearing capacity of the horn-shaped steel casing; the length of the circular curve is L≥2SR/H, where S is the longitudinal displacement of the cable 6, and H is the height difference between the upper and lower anchor points of the cable 6. The straight line of the flat curve is parallel to the axis of the trumpet-shaped steel tube 1, and the length of the line is not less than 200mm. The distance from the straight line to the axis of the trumpet-shaped steel tube 1 is the radius of the cable 6, the thickness of the rubber pad 5, and the manufacture of 3mm. The sum of errors. The inner surface of the horn-shaped steel protective tube 1 formed by a straight line rotating around the axis of the flared steel protective tube 1 by 360 degrees is the transition section of the longitudinal movement of the cable 6, and is located at the flared steel protective tube 1 when the cable 6 is moved longitudinally. The cable 6 within the straight line range of the inner surface of the cable does not move longitudinally, that is, it prevents the port of the cable 6 and the cable sealing tube 7 from receiving a large concentrated cutting force.

Circumferential stiffeners 3 and radial stiffeners 4 are arranged between the outer wall of the flared steel protective tube 1 and the inner wall of the cable conduit 8. The circumferential stiffeners 3 and the radial stiffener 4 are welded to the outer wall of the flared steel protective tube 1 connection. There are no less than 8 radial stiffeners 4, and radial stiffeners 4 are evenly arranged along the circumference of the outer wall of the horn-shaped steel protective tube 1. There are multiple circumferential stiffeners 3, and the number of circumferential stiffeners 3 is based on the horn shape. The length of the steel casing 1 is determined. A plurality of circumferential stiffeners 3 are evenly spaced and arranged along the axial direction of the flared steel casing 1, and the inner diameters of the plurality of circumferential stiffeners 3 gradually move away from the cable sealing drum 7 Increase, the distance between two adjacent circumferential stiffeners 3 is not more than 200mm.

The rubber pad 5 has a thickness of about 10 mm. The rubber pad 5 is attached to the inner wall of the horn-shaped steel casing 1; when the cable 6 moves longitudinally, the outer wall of the cable 6 is attached to the rubber pad 5.

working principle

The anchoring device adapted to the longitudinal movement of the structure of the present invention is provided with a horn-shaped steel protective tube 1 in the cable guide 8 adapted to the longitudinal deviation of the cable 6, and the inner surface of the flared steel protective tube 1 is formed by a straight line The flat curve combined with the circular curve is formed by rotating 360 degrees around the axis of the flared steel protective tube 1. When the cable 6 follows the main beam to deviate longitudinally, the outer wall of the cable 6 is in close contact with the inner wall of the horn-shaped steel protective tube 1 to limit the deviation between the port of the cable 6 and the cable sealing tube 7, and the cable 6 The concentrated cutting force of the port of the cable sealing cylinder 7 is transferred to the flared steel protective cylinder 1. As shown in Figure 4, because the horn-shaped steel protective tube 1 increases the contact area between the outer wall of the cable 6 and the inner wall of the horn-shaped steel protective tube 1, it prevents the cable body of the cable 6 from being locally subjected to a large concentrated cutting force and improves The safety of the anchoring system is improved.

In order to improve the structural strength of the flared steel casing 1, the anchoring device welds the radial stiffener 4, the circumferential stiffener 3 and the end circumferential stiffener 2 on the outer wall of the horn-shaped steel casing 1 in a set sequence. The radial stiffener 4, the circumferential stiffener 3 and the end circumferential stiffener 2 make the cable guide tube 8 and the flared steel protective tube 1 form a whole, which significantly improves the structural strength of the flared steel protective tube 1 and improves the flared steel Durability of the protective tube 1. In order to reduce the surface wear of the cable 6, the anchoring device has a rubber pad 5 attached to the inner wall of the horn-shaped steel protective cylinder 1. The rubber pad 5 has good flexibility and wear resistance. The outer wall of the cable 6 and the rubber When the pad 5 is in contact, the surface wear of the cable 6 can be significantly reduced, and the outer wall of the cable 6 can be protected.

In order to meet the performance requirements of the anchoring device, the shape and size of the high horn-shaped steel protective tube 1 are specially designed according to the circular curve section of the horn-shaped steel protective tube according to actual engineering needs. The radius of the circular curve R is not less than the ratio of the cable force P and the radial bearing capacity q of the flared steel protective tube; the length L of the circular curve is not less than 2 times the longitudinal movement of the cable S multiplied by the flared steel protective tube The radius R is divided by the height difference H between the upper and lower anchor points of the cable. The size and shape of the anchoring device in the horn-shaped steel protective tube 1 are obtained by precise calculation of mechanics, which meets the performance requirements of the anchoring device.

In the preferred embodiment, one end of the cable guide tube 8 is welded with an anchor backing plate 10, the other end of the cable guide tube 8 is welded with an anchor plate 9 and both ends of the outer wall of the flared steel protective tube 1 are respectively provided with end circumferential stiffeners 2 , The end circumferential stiffening rib 2 is welded to the inner wall of the cable guide tube 8, and the circumferential stiffening rib 3 and the radial stiffening rib 4 are attached to the inner wall of the cable guide tube 8. The structural material yield strength of the horn-shaped steel protective tube 1, the end circumferential stiffener 2, the circumferential stiffener 3 and the radial stiffener 4 is not less than 345MPa, which improves the radial force bearing capacity of the anchoring device.

Example 2

Referring to Figures 1 to 3, another aspect of the present invention provides a method for installing an anchoring device adapted to the longitudinal movement of a structure, which includes the following steps:

Step 1. The cable catheter 8 is composed of a proximal anchor section and a distal anchor section. The proximal anchor section is the end close to the cable sealing cylinder 7, and the distal anchor section is the end far away from the cable sealing cylinder 7. The cable catheter 8 is divided into proximal sections. The anchor section and the remote anchor section are used to facilitate the welding of the end circumferential stiffener 2 and the cable guide tube 8.

Step 2. Process the flared steel shield 1 according to the designed flat curve. The radius R of the flared steel shield 1 is not less than the ratio of the cable force P and the radial bearing capacity q of the flared steel tube; The length L is not less than 2 times the longitudinal displacement of the cable S multiplied by the radius R of the flared steel protective tube and divided by the height difference H between the upper and lower anchor points of the cable.

Step 3. After the flared steel shield 1 is processed and formed, a rubber pad 5 is attached to the inner wall of the flared steel shield 1.

Step 4. Weld the radial stiffener 4, the circumferential stiffener 3 and the end circumferential stiffener 2 on the outer wall of the flared steel protective tube 1 in a set sequence.

Step 5. Sleeve part of the horn-shaped steel protective tube 1 into the near anchor section of the cable guide 8, according to the set position, ring the end of the horn-shaped steel protective tube 1 close to one end of the cable sealing tube 7 to the stiffener 2 and the cable The inner wall of the conduit 8 is welded and connected.

Step 6. Set in the distal anchor section of the cable catheter 8, weld the proximal and distal anchor sections of the cable catheter 8 into a whole, and ensure that the axes of the proximal and distal anchor sections coincide.

Step 7: Weld and connect the ring stiffener 2 at the end of the flared steel protective tube 1 away from the end of the cable sealing tube 7 to the inner wall of the cable guide tube 8 to form the horn-shaped steel protective tube 1 and the cable guide tube 8 as a whole.

Step 8: Weld the anchor backing plate 10 at the end of the cable guide tube 8 close to the cable sealing tube 7, and weld the anchor plate 9 at the end of the cable tube 8 away from the cable sealing tube 7.

Step 9. Finally, the cable 6 is inserted into the cable conduit 8 for tensioning, and the main beam is connected with the auxiliary pier.

Those skilled in the art can make various modifications and variations to the embodiments of the present invention. If these modifications and variations are within the scope of the claims of the present invention and equivalent technologies, these modifications and variations are also within the protection scope of the present invention. .

The content not described in detail in the specification is the prior art well known to those skilled in the art.

Claims

An anchoring device adapted to the longitudinal movement of a structure is characterized in that it comprises:

A cable catheter (8), a cable (6) is inserted into the cable catheter (8), and the cable (6) is fixedly connected to one end of the cable catheter (8) through the cable sealing cylinder (7);

The flared steel protective tube (1), the flared steel protective tube (1) is located in the cable guide tube (8), and the inner diameter of the flared steel protective tube (1) gradually increases in the direction away from the cable sealing tube (7) Large, the outer wall of the horn-shaped steel protective cylinder (1) is fixedly connected with the inner wall of the cable guide tube (8).
The anchoring device adapted to the longitudinal movement of the structure according to claim 1, characterized in that:

Circumferential stiffeners (3) and radial stiffeners (4) are arranged between the outer wall of the flared steel protective tube (1) and the inner wall of the cable guide (8), and the circumferential stiffeners (3) are circular , The radial stiffener (4) is elongated, and the circumferential stiffener (3) and the radial stiffener (4) are fixedly connected with the outer wall of the horn-shaped steel protective tube (1) and the inner wall of the cable guide tube (8).
The anchoring device adapted to the longitudinal movement of the structure according to claim 2, characterized in that:

The radial stiffening ribs (4) are no less than 8, and the radial stiffening ribs (4) are evenly arranged along the circumference of the outer wall of the flared steel casing (1), and the circumferential stiffening ribs (3) are provided with multiple The multiple circumferential stiffeners (3) are evenly spaced and arranged along the axial direction of the horn-shaped steel protective tube (1), and the inner diameter of the multiple circumferential stiffeners (3) is along the distance away from the cable sealing tube (7). The direction gradually increases, and the distance between two adjacent circumferential stiffeners (3) is not more than 200mm.
The anchoring device adapted to the longitudinal movement of the structure according to claim 1, characterized in that:

The axis of the flared steel protective tube (1) is collinear with the axis of the cable guide (8), and the inner surface of the flared steel protective tube (1) is a flat curve formed by a straight line and a circular curve around the horn The axis of the shaped steel protective tube (1) is formed by rotating 360 degrees, and the distance from the circular curve to the axis of the flared steel protective tube (1) is the radius R of the circular curve;

The inner surface of the horn-shaped steel protective tube (1) is provided with a rubber pad (5), and the rubber pad (5) is attached to the inner wall of the horn-shaped steel protective tube (1), and the outer wall of the cable (6) Fit the rubber pad (5).
The anchoring device adapted to the longitudinal movement of the structure according to claim 4, characterized in that:

The straight line of the flat curve is parallel to the axis of the trumpet-shaped steel protective tube (1), the length of the straight line is not less than 200mm, and the distance from the straight line to the axis of the trumpet-shaped steel protective tube (1) is the radius of the cable (6), The thickness of the rubber pad (5) and the manufacturing error of 3mm.
The anchoring device adapted to the longitudinal movement of the structure according to claim 4, characterized in that:

The straight line of the flat curve is tangent to the circular curve, and the radius of the circular curve R≥P/q, where P is the cable force, and q is the radial bearing capacity of the horn-shaped steel protective tube; the length of the circular curve L≥2SR/H , Where S is the longitudinal displacement of the cable (6), and H is the height difference between the upper and lower anchor points of the cable (6).
The anchoring device adapted to the longitudinal movement of the structure according to claim 1, characterized in that:

One end of the cable guide tube (8) is welded with an anchor backing plate (10), the other end of the cable guide tube (8) is welded with an anchor plate (9), and both ends of the outer wall of the flared steel protective tube (1) are respectively The end circumferential stiffener (2) is provided, the end circumferential stiffener (2) is welded to the inner wall of the cable guide (8), and the circumferential stiffener (3) and the radial stiffener (4) are connected The inner wall of the cable catheter (8) fits.
The anchoring device adapted to the longitudinal movement of the structure according to claim 1, characterized in that:

The horn-shaped steel protective tube (1) is located at one end away from the cable sealing tube (7) in the cable conduit (8), and the horn-shaped steel protective tube (1) is located outside the cable sealing tube (7).
The anchoring device adapted to the longitudinal movement of the structure according to claim 1, characterized in that:

The structural material yield strength of the horn-shaped steel protective tube (1) is not less than 345MPa.
The method for installing an anchoring device adapted to the longitudinal movement of the structure according to any one of claims 1-9, characterized in that it comprises the following steps:

The cable catheter (8) is composed of a proximal anchor section and a distal anchor section. The cable catheter (8) is divided into a proximal anchor section and a distal anchor section to facilitate the welding of the end circumferential stiffener (2) and the cable catheter (8) ；

The horn-shaped steel protective tube (1) is processed according to the designed horizontal curve, and the rubber pad (5) is attached to the inner wall of the flared steel protective tube (1);

Weld the radial stiffener (4), the circumferential stiffener (3) and the end circumferential stiffener (2) on the outer wall of the flared steel protective tube (1) in the set sequence;

Sleeve part of the horn-shaped steel protective tube (1) into the near anchor section of the cable guide (8), and ring the end of one end of the flared steel protective tube (1) to the stiffener (2) and the cable The inner wall of the conduit (8) is welded and connected;

Sleeve the distal anchor section of the cable catheter (8), weld the proximal and distal anchor sections of the cable catheter (8) into a whole, and ensure that the axes of the proximal and distal anchor sections coincide;

Connect the ring stiffener (2) at the other end of the flared steel protective tube (1) to the inner wall of the cable guide tube (8) by welding, and form a flared steel tube (1) with the cable guide tube (8) overall;

Weld an anchor backing plate (10) on one end of the cable guide tube (8), and weld the anchor plate (9) on the other end of the cable guide tube (8);

The cable (6) is inserted into the cable catheter (8) for tensioning.