WO2024036497A1

WO2024036497A1 - Deck cable and stabilizing cable anchoring system for cableway bridge, and construction method

Info

Publication number: WO2024036497A1
Application number: PCT/CN2022/112916
Authority: WO
Inventors: 杜俊波; 杨萍; 刘新华; 刘正军; 康金刚; 王鸿儒; 王志鹏
Original assignee: 中交第二公路工程局有限公司
Priority date: 2022-08-17
Filing date: 2022-08-17
Publication date: 2024-02-22

Abstract

The present invention belongs to the technical field of bridge design and construction, and particularly relates to a deck cable and stabilizing cable anchoring system for a cableway bridge, and a construction method. The deck cable and stabilizing cable anchoring system for a cableway bridge comprises a cable rotating saddle, a cable rotating saddle foundation beam, a balance beam, tail end concrete, an anchor cable, a deck cable and a stabilizing cable, wherein the cable rotating saddle comprises stabilizing cable rotating saddles and a deck cable rotating saddle, the deck cable rotating saddle being arranged in the middle of the top of the cable rotating saddle foundation beam, the stabilizing cable rotating saddles are arranged on two sides of the cable rotating saddle foundation beam, the deck cable passing through the deck cable rotating saddle to be anchored to a rear anchor surface of the balance beam, the stabilizing cable passing through the stabilizing cable rotating saddle to be anchored to the rear anchor surface of the balance beam, the anchor cable being anchored to a front anchor surface of the balance beam at one end, and is anchored in rock mass on a bank of the cableway bridge at the other end. According to the present invention, the balance beam is used as a conversion structure for transmitting cable forces from the deck cable and the stabilizing cable to an anchor cable system, the anchoring system for a cableway bridge has high safety, good economical viability and good durability, and the deck cable, the stabilizing cable and the anchor cable are easier to tension in a construction stage and to replace later.

Description

A cableway bridge deck cable and stabilizing cable anchoring system and construction method

Technical field

The invention belongs to the technical field of bridge design and construction, and particularly relates to a cableway bridge deck cable and stabilizing cable anchoring system and a construction method.

Background technique

A cableway bridge is a suspension system bridge that spans a steep valley. It usually has anchoring systems on both sides, and then sets deck cables and stabilizing cables as load-bearing cable bodies, beams, bridge decks, bridge deck pressure plates, curbs, and handrails. The railings serve as the bridge deck system for the passage of people and vehicles on both sides of the strait. The bridge deck cables and stabilizing cables transfer all the loads they bear to the anchor system. Therefore, the safety, stability and durability of the cable bridge anchoring system are crucial to the operation and operation of the cable bridge. The key to later maintenance is.

At present, the anchoring systems of cableway bridges mostly adopt the ridge type, anchor pile type, and anchor rod (cable) type. The bridge deck cables and stabilizing cables are either directly anchored on the anchor beams or anchor piles, or through steel adjustment devices or steel adjustment devices. The screw rod is connected to the anchor rod (cable). This anchoring method often makes it difficult to replace the bridge deck cables and stabilizing cables in the later stage, or the anchoring system has limited bearing capacity and cannot be replaced when the operational load of the cableway bridge increases. However, the profile steel adjustment device and steel adjustment screw It is easy to corrode, resulting in insufficient durability of the entire bridge, and there are major safety hazards and other problems.

Contents of the invention

In view of the above problems, the purpose of the present invention is to provide a cableway bridge deck cable and stabilizing cable anchoring system and method. By using reinforced concrete balance beams, the safety, economy and durability of the cableway bridge anchoring system are better, and the bridge The tensioning and later replacement of surface cables, stabilizing cables and anchor cables during the construction phase are more convenient and have better economic and social benefits.

The technical solution of the present invention is: a cableway bridge deck cable and stabilizing cable anchoring system, including a swing cable saddle, a swing saddle foundation beam, a balance beam, tail end concrete, an anchor cable, a bridge deck cable, and a stabilizing cable. The swing cable saddle includes a stabilizing cable swing saddle and a bridge deck cable swing saddle. The deck cable swing saddle is arranged in the middle of the top of the foundation beam of the swing saddle. There are two sides on both sides of the top of the foundation beam of the swing saddle. The stable cable saddle, the foundation beam, the balance beam, and the tail concrete of the saddle are all reinforced concrete structures. The front end of the tail concrete is fixedly connected to the balance beam, and the rear end of the tail concrete is The end is supported on the surface of the rock mass on the shore of the cableway bridge. The bridge deck cable passes through the bridge deck cable and is anchored to the rear anchor surface of the balance beam. The stabilizing cable passes through the stabilizing cable and cable saddle. It is anchored with the rear anchor surface of the balance beam, one end of the anchor cable is anchored with the front anchor surface of the balance beam, and one end is anchored in the rock mass on the shore of the cableway bridge.

The stable cable saddle and the deck cable saddle are both made of semicircular steel plates. Both ends of the saddle are sealed with steel plates. The lower end of the saddle is provided with a grouting hole and the upper end is provided with an exhaust hole.

The top surfaces of the stabilizing cable saddles and the deck cable saddles are provided with positioning steel plates to limit the lateral displacement of the bridge deck cables and the stabilizing cables. The stabilizing cable saddles and deck cable saddles Apply lubricating grease into the saddle groove of the cable body formed by the saddle surface steel plate and the positioning steel plate.

The vertical height of the balance beam is higher than the concrete at the tail end. The front end surface of the balance beam is the anchor cable anchoring surface. The anchor cable anchor points are divided into 3 layers from top to bottom. The cross-bridge distance between the anchor cable anchor points of each layer is 1.5 m, the vertical spacing between each layer is 1m, and the horizontal inclination angle of the anchor cables of each layer gradually increases from top to bottom.

The rear end surface of the balance beam is the anchoring surface for the bridge deck cables and stabilizing cables. The anchoring points are arranged in two layers from top to bottom. The anchoring points of the bridge deck cables and stabilizing cables remain unchanged across the bridge and are staggered vertically. Setting, vertical spacing is 0.25m.

The balancing beams, tail-end concrete deck cables, stabilizing cables, and anchor cables all use round smooth plastic pipes as the pipes inside the concrete. The bridge deck cables, stabilizing cables, and anchor cables are all made of non-bonded Low-relaxation prestressed steel strands are braided into bundles.

The anchor cables, deck cables and stabilizing cables are protected by stainless steel pipe sleeves between the rock surface and the balancing beam, between the balancing beam and the stabilizing cable slewing saddle and the bridge deck cable slewing saddle, and the stainless steel pipe sleeves are filled with Full of grease.

The top of the foundation beam, balance beam and tail end concrete of the cable saddle is provided with a cover plate, and the cover plate is a reinforced concrete structure.

The anchor cable includes a consolidated section, a free section and a balance beam anchoring section. The consolidated section is located in the rock body, the free section is located between the rock mass and the balance beam, and the balance beam anchoring section is located in the balance beam. .

A construction method for a cableway bridge deck cable and stabilizing cable anchoring system, including the following steps:

S1: Make anchor rope;

Use a drilling rig to dry-drill the hole in the rock body. After cleaning the cuttings in the hole, put the anchor cable into the hole, and set a grouting plug at the hole opening. First fill the grouting plug with 0.4MPa pressure, and wait for the cement slurry to After reaching the design strength, perform high-pressure grouting in the hole;

S2: After the strength of the grouting body of the anchor cable reaches 100%, install the stainless steel pipe sleeve of the anchor cable, and construct the balance beam, tail end concrete, foundation beam of the cable saddle, stabilizing cable saddle and bridge deck cable saddle;

S3: After the strength of the balance beam, tail end concrete, foundation beam of the cable saddle, stabilizing cable saddle and deck cable saddle reaches the design strength, install the bridge deck cable and stabilizing cable, and the bridge deck cable and stabilizing cable. A stainless steel pipe sleeve is installed after the body passes through the stabilizing cable saddle and the bridge deck cable saddle, an anchor cable anchoring device is installed on the front anchor surface of the balance beam, and the deck cable and stabilizing cable anchoring devices are installed on the rear anchor surface of the balance beam;

S4: Synchronously tension the first batch of tension anchor cables, deck cables and stabilizing cables, in which the deck cables and stabilizing cables are controlled by stress-free length, and the anchor cables are controlled by cable force;

S5: Tension the second batch of tension anchor cables. After the second batch of tension anchor cables are tensioned, the first batch of tension anchor cables will be tensioned to compensate for the loss of cable strength, and then the cableway bridge beams, bridge decks and bridge deck accessories will be installed. structure;

S6: Tension the third batch of tensioning anchor cables, and make up for the loss of the first batch of tensioning anchor cables and the second batch of tensioning anchor cables;

S7: Complete the anchoring of the anchor cables, bridge deck cables and stabilizing cables at the balance beam, set up cable body anti-loosening baffles, and perform anti-corrosion treatment on the reserved untensioned anchor cables;

S8: Quality inspection and bridge load test;

S9: Install the cover plate to seal the anchorage system of the bridge deck cables and stabilizing cables.

The technical effects of the present invention are: 1. The present invention provides longitudinal bridge-direction steering and transverse bridge-direction limiting for the bridge deck cables and stabilizing cables through the bridge deck cable rotating cable saddle and the stabilizing cable rotating cable saddle, and simultaneously withstands both sides of the saddle body. The vertical and horizontal forces generated by the force of the bridge deck cables and stabilizing cables provide steering support for the cableway bridge deck cables and stabilizing cables; 2. The present invention uses a balance beam to transmit the force of the bridge deck cables and stabilizing cables to the anchor cable system. Conversion structure, the balance beam is divided into a front anchor surface and a rear anchor surface. The front anchor surface mainly anchors the anchor cables, and the rear anchor surface mainly anchors the bridge deck cables and stabilizing cables. Through the layered setting of anchor points, the concentration of concrete stress in the anchoring area is effectively prevented; 3. In order to prevent the later relaxation of the anchor cable force or the increase in the load-bearing load of the cableway bridge, the present invention leaves an untensioned reserved anchor cable structure in the anchoring section of the balance beam at the balance beam; 4. After the construction of the body structure is completed, a reinforced concrete cover plate is installed above the anchoring system between the foundation beam of the cable saddle and the balance beam, the balance beam and the rear end face of the concrete at the end. It can be disassembled for maintenance later to facilitate the replacement of the bridge deck cables and stabilizing cables.

Further description will be provided below with reference to the accompanying drawings.

Description of drawings

Figure 1 is a schematic three-dimensional structural diagram of a cableway bridge deck cable and stabilizing cable anchoring system without a cover plate according to an embodiment of the present invention;

Figure 2 is a cross-sectional view of the cable saddle foundation beam of a cableway bridge deck cable and stabilizing cable anchoring system according to an embodiment of the present invention;

Figure 3 is a longitudinal cross-sectional view of the cable saddle foundation beam of a cableway bridge deck cable and stabilizing cable anchoring system according to an embodiment of the present invention;

Figure 4 is a partial enlarged schematic diagram of the bridge deck cable saddle at point A in Figure 2;

Figure 5 is a schematic diagram of the front anchor surface of a balance beam of a cableway bridge deck cable and stabilizing cable anchoring system according to an embodiment of the present invention;

Figure 6 is a schematic diagram of the rear anchor surface of a balance beam of a cableway bridge deck cable and stabilizing cable anchoring system according to an embodiment of the present invention;

Figure 7 is a cross-sectional view 1-1 in Figure 6;

Figure 8 is a cross-sectional view 2-2 in Figure 6;

Figure 9 is a schematic diagram of a single-side anchoring system of a cableway bridge deck cable and stabilizing cable anchoring system according to an embodiment of the present invention;

Figure 10 is a schematic three-dimensional structural diagram of a cableway bridge deck cable and stabilizing cable anchoring system with cover plates installed according to an embodiment of the present invention;

Reference symbols: 1-deck cable; 2-stabilizing cable; 3-beam; 4-swivel cable saddle; 41-stabilizing cable swivel cable saddle; 42-deck cable swivel cable saddle; 43-positioning steel plate; 5-cable Saddle foundation beam; 6-balance beam; 7-tail end concrete; 8-anchor cable; 81-first batch of tension anchor cables; 82-second batch of tension anchor cables; 83-third batch of tension anchor cables; 9-Cover.

Detailed ways

Example 1

As shown in Figures 1, 2, 3, and 4, a cableway bridge deck cable and stabilizing cable anchoring system includes a cable saddle 4, a cable saddle foundation beam 5, a balance beam 6, and end concrete 7. Anchor cable 8, bridge deck cable 1, stabilizing cable 2. The swing cable saddle 4 includes a stabilizing cable swing saddle 41 and a bridge deck cable swing saddle 42. The bridge is provided in the middle of the top of the foundation beam 5 of the swing saddle. Surface cable slewing saddle 42, the stable cable slewing saddle 41 is respectively provided on both sides of the top of the swivel saddle foundation beam 5, the swivel saddle foundation beam 5, balance beam 6, and tail end concrete 7 are all steel bars Concrete structure, the front end of the tail end concrete 7 is fixedly connected to the balance beam 6, the rear end of the tail end concrete 7 is supported on the surface of the rock mass on the shore of the cableway bridge, and the bridge deck cable 1 passes through the bridge The surface cable saddle 42 is anchored to the rear anchor surface of the balance beam 6 , the stabilizing cable 2 passes through the stabilization cable saddle 41 and is anchored to the rear anchor surface of the balance beam 6 , and the anchor cable 8 One end is anchored to the front anchor surface of the balance beam 6, and the other end is anchored to the rock mass on the shore of the cableway bridge.

In actual use, the swivel saddle foundation beam 5, balance beam 6, and tail end concrete 7 are all reinforced concrete structures, and the lower end is supported on the rock surface or treated foundation. The bridge deck cable 1 and the stabilizing cable 2 pass through the swivel cable. The saddle 4 turns to the balance beam 6 and is anchored to the rear end of the balance beam 6 using anchors. The anchor cable 8 is anchored to the front end of the balance beam 6 using anchors. Through this structural system, the cableway bridge deck cable 1 and the stabilizing cable 2 bear the The cable force is transmitted to the anchor cable system and finally to the rock body. The invention uses the bridge deck cable rotating cable saddle and the stabilizing cable rotating cable saddle to provide the bridge deck cables and stabilizing cables with longitudinal steering and transverse bridge limiting, and at the same time withstands the force generated by the deck cables and stabilizing cables on both sides of the saddle body. The vertical and horizontal forces serve as steering supports for the deck cables and stabilizing cables of the cableway bridge. The balance beam is used as a conversion structure to transfer the force of the deck cables and stabilizing cables to the anchor cable system. The balance beam is divided into a front anchor surface and a rear anchor surface. , the front anchor surface mainly anchors the anchor cables, and the rear anchor surface mainly anchors the bridge deck cables and stabilizing cables, effectively preventing concrete stress concentration in the anchoring area.

Example 2

Preferably, on the basis of Embodiment 1, in this embodiment, preferably, the stabilizing cable saddle 41 and the bridge deck cable saddle 42 are made of semicircular steel plates, and both ends of the saddle 4 are made of The steel plate is sealed, a grouting hole is provided at the lower end of the swivel saddle 4, and an exhaust hole is provided at the upper end.

During actual use, the stabilizing cable saddle 41 and the bridge deck cable saddle 42 of the present invention are both made of semicircular steel plates, with both ends sealed by steel plates, and the lower end is arranged in a comb-tooth shape according to the steel bar arrangement of the foundation beam 5 of the saddle. , in order to get stuck on the steel bars of the foundation beam 5 of the swivel saddle, a grouting hole is provided at the lower end of the swivel saddle, and an exhaust hole is provided at the upper end. The foundation beam 5 of the cable saddle is poured together with the stabilizing cable saddle 41 and the bridge deck cable saddle 42. After the concrete equalization is completed, the grouting holes are poured from the stabilizing cable saddle 41 and the deck cable saddle 42. Inject cement mortar into the saddle, and seal the vent and grouting holes after filling.

Example 3

Preferably, on the basis of

Embodiment

1 or 2, in this embodiment, the top surfaces of the stabilizing cable saddle 41 and the deck cable saddle 42 are provided with positioning steel plates 43 for limiting the bridge deck cables. 1 and the stabilizing cable 2 are displaced in the transverse direction of the bridge, and lubricating grease is applied to the cable body saddle groove formed by the saddle surface steel plate and the positioning steel plate 43 of the stabilizing cable to the cable saddle 41, the bridge deck cable to the cable saddle 42.

During actual use, the positioning steel plate 43 of the present invention is arranged in the transverse bridge direction according to the transverse bridge direction arrangement of the bridge deck cables 1 and the stabilizing cables 2. It is mainly used to limit the transverse bridge displacement of the bridge deck cables 1 and the stabilizing cables 2. At the same time, During the erection and operation of the cableway bridge, lubricating grease is regularly applied to the notch formed by the cable saddle steel plate and the positioning steel plate so that the bridge deck cable 1 and the stabilizing cable 2 can slide freely in the longitudinal direction of the bridge to prevent damage to the cable body.

Example 4

Preferably, on the basis of

Embodiment

1 or 3, in this embodiment, the vertical height of the balance beam 6 is higher than the concrete 7 at the rear end. As shown in Figures 6 and 7, the front end of the balance beam 6 The surface is the anchoring surface of the anchor cables 8. The anchor cables 8 anchor points are divided into 3 layers from top to bottom. The 8 anchor cable anchor points of each layer are 1.5m apart in the transverse direction, and the vertical spacing between each layer is 1m. The 8 anchor cables in each layer are The horizontal inclination gradually increases from top to bottom.

During actual use, the vertical height of the balance beam 6 of the present invention is higher than the tail end concrete 7, and its vertically higher portion provides space for later maintenance of the bridge deck cable 1 and the stabilizing cable 2. The front end surface of the balance beam 6 of the present invention is the anchoring surface of the anchor cables 8. The anchoring points of the anchor cables 8 are divided into 3 layers from top to bottom. The 8 anchoring points of the anchor cables in each layer are 1.5m apart in the transverse direction and 1.5m in the vertical direction. 1m, through the layered setting of anchor points, it can effectively prevent stress concentration in the concrete in the anchoring area.

Example 5

Preferably, on the basis of Embodiment 1 or Embodiment 4, in this embodiment, as shown in Figure 8, the rear end surface of the balance beam 6 is the anchoring surface of the bridge deck cable 1 and the stabilizing cable 2, and its anchoring point is from above It is divided into two layers to set up. The anchor points of the bridge deck cable 1 and the stabilizing cable 2 remain unchanged in the transverse bridge direction and are arranged vertically in a staggered manner with a vertical spacing of 0.25m.

During actual use, the rear end surface of the balance beam 6 of the present invention is the anchoring surface of the bridge deck cable 1 and the stabilizing cable 2. The anchoring points are arranged in two layers from top to bottom. The cable bodies of the bridge deck cable 1 and the stabilizing cable 2 are The cross-bridge position of the anchor points remains unchanged, and they are staggered vertically with a vertical spacing of 0.25m. The hierarchical arrangement of the anchor points effectively prevents stress concentration in the concrete in the anchor area.

Example 6

Preferably, based on Embodiment 1 or Embodiment 5, in this embodiment, the balance beam 6, the internal deck cable 1 of the tail end concrete 7, the stabilizing cable 2, and the anchor cable 8 are all made of round smooth plastic pipes. As the pipes inside the concrete, the bridge deck cables 1, stabilizing cables 2, and anchor cables 8 are all braided into bundles using unbonded low-relaxation prestressed steel strands.

In actual use, the balance beam 6 and the internal bridge deck cable 1, the stabilizing cable 2 and the anchor cable 8 of the present invention all use round smooth plastic pipes as the pipes for the cable body inside the concrete, which is beneficial to the cable body. protection of.

Example 7

Preferably, based on Embodiment 1 or Embodiment 6, in this embodiment, the anchor cable 8, the bridge deck cable 1, and the stabilizing cable 2 are between the rock surface and the balancing beam 6, and between the balancing beam 6 and the stabilizing cable. Stainless steel pipe sleeves are used for protection between the swivel cable saddle 41 and the bridge deck cable swivel cable saddle 42, and the stainless steel pipe sleeves are filled with lubricating grease.

During actual use, grease is provided in the stainless steel pipe sleeve of the present invention to facilitate the free sliding of the cable body.

Example 8

Preferably, on the basis of Embodiment 1 or Embodiment 7, in this embodiment, the tops of the cable saddle base beam 5, the balance beam 6, and the tail end concrete 7 are provided with a cover plate 9, and the cover plate 9 is reinforced-concrete structure.

During actual use, the cover plate 9 is provided on the top of the foundation beam 5, the balance beam 6, and the tail end concrete 7 of the cable saddle according to the present invention, which can be disassembled and repaired later to facilitate the replacement of the bridge deck cables and stabilizing cables.

Example 9

Preferably, based on Embodiment 1 or Embodiment 8, in this embodiment, as shown in Figure 10, the anchor cable 8 includes a consolidation section, a free section and a balance beam anchoring section, and the consolidation section is located at In the rock body, the free section is located between the rock mass and the balance beam, and the anchor section of the balance beam is located in the balance beam 6 .

In actual use, the anchor cable 8 of the present invention includes a fixed section, a free section and a balance beam anchoring section. The anchor cable has an untensioned reserved anchor cable structure in the balance beam anchoring section and at the balance beam, which can prevent later The anchor cable tension is slack or the load-bearing load of the cableway bridge is increased.

Example 10

S1: Make anchor cable 8;

Use a drilling rig to dry-drill the hole in the rock body. After cleaning the cuttings in the hole, put the anchor cable 8 into the hole, and set a grouting plug at the hole opening. First fill the grouting plug with 0.4MPa pressure, and wait until the cement After the grout reaches the design strength, high-pressure grouting is performed in the hole;

S2: After the strength of the grouting body of the anchor cable 8 reaches 100%, install the stainless steel pipe sleeve of the anchor cable 8, construct the balance beam 6, the tail end concrete 7, the cable saddle foundation beam 5, the stabilizing cable cable saddle 41 and the bridge deck cable Rope saddle 42;

S3: As shown in Figure 9, after the strength of the balance beam 6, tail end concrete 7, cable saddle foundation beam 5, stabilizing cable cable saddle 41 and deck cable cable saddle 42 reaches the design strength, install the deck cable 1 After each cable body of the stabilizing cable 2, the deck cable 1 and the stabilizing cable 2 passes through the stabilizing cable slewing saddle 41 and the deck cable slewing saddle 42, a stainless steel pipe sleeve is installed, and an anchor cable 8 is installed on the front anchor surface of the balance beam 6 for anchorage. Device, install deck cable 1 and stabilizing cable 2 anchoring devices on the rear anchor surface of balance beam 6;

S4: As shown in Figure 5, the first batch of tensioning anchor cables 81, deck cables 1 and stabilizing cables 2 are synchronously tensioned. The deck cables 1 and stabilizing cables 2 are controlled by the stress-free length, and the anchor cables 8 are controlled by the stress-free length. force to control;

S5: Tension the second batch of tension anchor cables 82. After the tensioning of the second batch of tension anchor cables 82 is completed, the first batch of tension anchor cables 81 will be tensioned to compensate for the loss of cable force, and then the cableway bridge beams, bridge decks and Bridge deck ancillary structures;

S6: Tension the third batch of tension anchor cables 83, and make up for the cable force loss of the second batch of tension anchor cables 82 and the third batch of tension anchor cables 81;

S7: Complete the anchoring of the anchor cable 8, the deck cable 1 and the stabilizing cable 2 at the balance beam 6, and set up anti-loose baffles for the cable body, and perform anti-corrosion treatment on the reserved untensioned anchor cables;

S8: Quality inspection and bridge load test;

S9: Install cover plate 9 to seal the anchoring system of bridge deck cable 1 and stabilizing cable 2.

The above are only preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of changes or modifications within the technical scope disclosed in the present invention. All substitutions are within the scope of the present invention.

Claims

An anchoring system for deck cables and stabilizing cables of a cableway bridge, which is characterized by: including a swivel cable saddle (4), a swivel cable saddle foundation beam (5), a balance beam (6), tail end concrete (7), and an anchor cable ( 8), bridge deck cable (1) and stabilizing cable (2), the swing cable saddle (4) includes a stabilizing cable swing saddle (41), a bridge deck cable swing saddle (42), and the swing saddle foundation The deck cable swing saddle (42) is provided in the middle of the top of the beam (5), and the stabilizing cable swing saddle (41) is provided on both sides of the top of the foundation beam (5). The saddle foundation beam (5), balance beam (6), and tail end concrete (7) are all reinforced concrete structures. The front end of the tail end concrete (7) is fixedly connected to the balance beam (6), and the tail end concrete (7) is fixedly connected to the balance beam (6). The rear end of the end concrete (7) is supported on the surface of the rock mass on the shore of the cableway bridge, and the bridge deck cable (1) passes through the bridge deck cable rotation cable saddle (42) and the rear anchor of the balance beam (6) Surface anchoring, the stabilizing cable (2) passes through the stabilizing cable saddle (41) and is anchored to the rear anchor surface of the balancing beam (6), and one end of the anchoring cable (8) is connected to the balancing beam (6). 6) The front anchor surface is anchored, and one end is anchored in the rock mass on the shore of the cableway bridge.
A cableway bridge deck cable and stabilizing cable anchoring system according to claim 1, characterized in that: the stabilizing cable slewing saddle (41) and the bridge deck cable slewing saddle (42) are made of semicircular steel plates , both ends of the swivel saddle (4) are sealed with steel plates, a grouting hole is provided at the lower end of the swivel saddle (4), and an exhaust hole is provided at the upper end.
An anchoring system for deck cables and stabilizing cables of a cableway bridge according to claim 1, characterized in that: the top surfaces of the stabilizing cable slewing saddle (41) and the bridge deck cable slewing saddle (42) are provided with positioning steel plates ( 43), used to limit the lateral displacement of the bridge deck cable (1) and the stabilizing cable (2). The stabilizing cable transfer cable saddle (41), the bridge deck cable transfer cable saddle (42), the saddle surface steel plate and the positioning steel plate (43) Apply lubricating grease to the saddle groove of the cable body formed.
A cableway bridge deck cable and stabilizing cable anchoring system according to claim 1, characterized in that: the vertical height of the balance beam (6) is higher than the tail end concrete (7), and the front end of the balance beam (6) The surface is the anchoring surface of the anchor cable (8). The anchoring points of the anchor cable (8) are divided into 3 layers from top to bottom. The horizontal spacing of the anchoring points of the anchor cable (8) in each layer is 1.5m, and the vertical spacing of each layer is 1m. The horizontal inclination angle of each layer of anchor cables (8) gradually increases from top to bottom.
An anchoring system for deck cables and stabilizing cables of a cableway bridge according to claim 1, characterized in that: the rear end surface of the balance beam (6) is the anchoring surface of the deck cables (1) and the stabilizing cables (2). The points are arranged in two layers from top to bottom. The anchor points of the bridge deck cable (1) and the stabilizing cable (2) remain unchanged in the transverse bridge direction, and are arranged vertically in a staggered manner with a vertical spacing of 0.25m.
A cableway bridge deck cable and stabilizing cable anchoring system according to claim 1, characterized in that: the balance beam (6), the internal deck cable (1) and the stabilizing cable (2) of the tail end concrete (7) , anchor cables (8) all use round smooth plastic pipes as the pipes inside the concrete, and the bridge deck cables (1), stabilizing cables (2), and anchor cables (8) are all made of non-bonded, low-relaxation prefabricated pipes. Stressed steel strands are braided into bundles.
A cableway bridge deck cable and stabilizing cable anchoring system according to claim 1, characterized in that: the anchor cable (8), the bridge deck cable (1), and the stabilizing cable (2) are on the rock surface and the balance beam ( 6), between the balance beam (6) and the stabilizing cable saddle (41) and the bridge deck cable saddle (42) are all protected by stainless steel pipe sleeves, and the stainless steel pipe sleeves are filled with lubricating grease.
A cableway bridge deck cable and stabilizing cable anchoring system according to claim 1, characterized in that: the tops of the cable saddle foundation beam (5), balance beam (6), and tail end concrete (7) are provided with covers Plate (9), the cover plate (9) is a reinforced concrete structure.
A cableway bridge deck cable and stabilizing cable anchoring system according to claim 1, characterized in that: the anchor cable (8) includes a consolidation section, a free section and a balance beam anchoring section, and the consolidation section is located on the rock In the body, the free section is located between the rock mass and the balance beam, and the anchor section of the balance beam is located in the balance beam (6).
A construction method for the anchorage system of deck cables and stabilizing cables of a cableway bridge, which is characterized by: including the following steps:

S1: Make anchor rope (8);

Use a drilling rig to dry-drill the hole in the rock body. After cleaning the cuttings in the hole, put the anchor cable (8) into the hole, set a grouting plug at the hole opening, and first fill the grouting plug with 0.4MPa pressure. After the cement slurry reaches the design strength, high-pressure grouting in the hole is performed;

S2: After the strength of the grouting body of the anchor cable (8) reaches 100%, install the stainless steel pipe sleeve of the anchor cable (8), and construct the balance beam (6), tail end concrete (7), cable saddle foundation beam (5), Stabilizing cable rotating saddle (41) and bridge deck cable rotating saddle (42);

S3: After the strength of the balance beam (6), tail end concrete (7), cable saddle foundation beam (5), stabilizing cable saddle (41) and deck cable saddle (42) reaches the design strength, install The bridge deck cable (1) and the stabilizing cable (2), the bridge deck cable (1) and the stabilizing cable (2) are installed after passing through the stabilizing cable rotating saddle (41) and the bridge deck cable rotating saddle (42). Stainless steel pipe sleeve, install anchor cable (8) anchoring device on the front anchor surface of the balance beam (6), install bridge deck cable (1) and stabilizing cable (2) anchoring device on the rear anchor surface of the balance beam (6);

S4: Synchronously tension the first batch of tension anchor cables (81), deck cables (1) and stabilizing cables (2). The deck cables (1) and stabilizing cables (2) are controlled with stress-free lengths. Cable (8) is controlled by cable force;

S5: Tension the second batch of tensioning anchor cables (82). After the tensioning of the second batch of tensioning anchor cables (82) is completed, the first batch of tensioning anchor cables (81) are tensioned to compensate for the cable force loss, and then Install cableway bridge beams, bridge decks and deck ancillary structures;

S6: Tension the third batch of tensioning anchor cables (83), and make up for the cable force loss of the second batch of tensioning anchor cables (82) and the first batch of tensioning anchor cables (81);

S7: Complete the anchoring of the anchor cables (8), deck cables (1) and stabilizing cables (2) at the balance beam (6), set up cable body anti-loosening baffles, and perform maintenance on the reserved untensioned anchor cables. Anti-corrosion treatment;

S8: Quality inspection and bridge load test;

S9: Install the cover plate (9) to seal the anchoring system of the bridge deck cable (1) and the stabilizing cable (2).