Stay cable beam end traction lifting anchoring device

Abstract

According to the stay cable beam end traction lifting anchoring device, a movable anchoring traction anchoring module is movably connected to a cable-stayed bridge main beam, a beam end clamping anchor is arranged at one end of a traction longitudinal beam so as to detachably fix the movable anchoring traction anchoring module and the cable-stayed bridge main beam, and the beam end clamping anchor is of an L-shaped structure; the horizontal section of the L-shaped structure is provided with a clamping anchor buckle used for being connected with the beam end of the stay cable main beam in a clamping mode, the pair of traction rings is arranged at the other end of the traction longitudinal beam, and the traction rings are provided with guide wheel sets. One end of the connecting pull rod is detachably connected with the movable anchoring traction anchoring module, and the other end of the connecting pull rod is detachably connected with the movable lifting cable conveying module; a stay cable to be mounted is erected on the cable feeding steel roller so as to penetrate through the movable lifting cable feeding module and extend towards the movable anchoring traction anchoring module; and the traction cable is connected with the guide wheel group and is clamped and wound on an anchor head of the stay cable to be mounted. The device is convenient to operate, safe and reliable.

Description

Technical Field

[0001] This utility model relates to the field of construction technology for cable-stayed beam ends, and in particular to a cable-stayed beam end traction lifting and anchoring device. Background Technology

[0002] Cable-stayed bridges offer advantages such as excellent spanning capacity, reduced structural height for long-span bridges, lighter structural weight, and lower construction material costs, leading to their widespread application in bridges spanning rivers, seas, and valleys. However, due to operational constraints, cable-stayed bridges often employ a cantilever assembly and segment-by-segment installation process. This process significantly impacts the load distribution at the beam ends, greatly affecting the construction alignment and operational safety, and making construction organization challenging.

[0003] As the main load-bearing component that directly transfers the weight of the main girder and bridge deck to the tower, cable stays are currently often lifted and fed using mobile cranes mounted on the girder, assisting in the anchoring construction at the ends of the cable-stayed bridge. However, mobile cranes are mobile heavy-duty devices, which are extremely detrimental to the alignment, internal force control, and symmetrical installation safety of the main girder of the cable-stayed bridge. Furthermore, cable stays are generally lifted and anchored one by one from the left and right sides of the middle and side spans of the cable-stayed bridge. This poses a risk of imbalance and deviation due to lateral deviation of the mobile crane's placement, or the impact of changes in the lifting distance on the girder end load due to the larger size of the mobile crane. Therefore, the requirements for operational safety and quality control are extremely high.

[0004] The information disclosed in the background section is only intended to enhance the understanding of the background of this utility model, and therefore may contain information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a cable-stayed bridge beam-end traction, lifting, and anchoring device that eliminates the need for a truck crane to assist in the traction and anchoring of the cable-stayed bridge beam ends, thus avoiding the potential mechanical load hazards at the beam ends during the segmental installation of cantilever assemblies in cable-stayed bridges. While meeting construction requirements, the device employs a lightweight, easy-to-operate, and reliable structure to solve technical problems such as the lack of lifting and adjusting points for cable-stayed bridge beam-end traction, lifting, and directional anchoring. It also utilizes a movable and easily anchorable standard device to address the difficulties of on-site operation, complex procedures, and low efficiency, thereby reducing the pressure on construction alignment and operational safety management during the segmental installation of cantilever assemblies in cable-stayed bridges.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] This utility model provides a cable-stayed beam end traction lifting and anchoring device, which includes:

[0008] A movable anchoring and traction module, which is movably connected to the main girder of a cable-stayed bridge, includes the following components:

[0009] A pair of traction longitudinal beams are spaced apart on the main girder of the cable-stayed bridge and extend along the axial direction of the main girder. A portal frame structure is provided on the pair of traction longitudinal beams.

[0010] The beam-end anchor is located at one end of the traction longitudinal beam to detachably fix the movable anchoring traction anchor module to the main beam of the cable-stayed bridge. The beam-end anchor has an L-shaped structure, and the horizontal section of the L-shaped structure is provided with anchor buckles for engaging the beam end of the cable-stayed main beam.

[0011] A pair of traction rings are respectively located at the other end of the traction longitudinal beam, and the traction rings are equipped with guide wheel sets;

[0012] A mobile lifting and cable-feeding module, which can be movably connected to the main girder of a cable-stayed bridge, includes the following components:

[0013] A pair of lifting longitudinal beams are spaced apart on the main girder of the cable-stayed bridge and extend along the axial direction of the main girder. A portal frame structure is provided on the pair of lifting longitudinal beams.

[0014] The cable feed rollers are laterally connected between a pair of support columns;

[0015] The connecting rod has one end detachably connected to the mobile anchoring traction and anchoring module, and the other end detachably connected to the mobile lifting and cable delivery module.

[0016] The stay cable to be installed is erected on the cable feeding steel roller to pass through the mobile lifting cable feeding module and extend toward the mobile anchoring traction and anchoring module;

[0017] A traction cable, which is connected to the guide wheel assembly and is wound around the anchor head of the stay cable to be installed.

[0018] In the aforementioned cable-stayed beam end traction lifting and anchoring device, the portal structure includes,

[0019] A pair of supporting columns, which are erected at intervals.

[0020] The main beam is lifted and connected laterally to the top of the pair of supporting columns.

[0021] Lifting lugs are installed on the lifting main beam.

[0022] The cable-stayed beam end traction lifting and anchoring device further includes multiple diagonal braces, one end of which is connected to the support column and the other end of which is connected to the traction longitudinal beam or the hoisting longitudinal beam.

[0023] The aforementioned cable-stayed beam end traction lifting and anchoring device also includes,

[0024] A connecting beam is laterally connected between the pair of traction longitudinal beams or between the pair of hoisting longitudinal beams.

[0025] A movable wheel is provided on the traction longitudinal beam or the hoisting longitudinal beam to slide and connect the main beam of the cable-stayed bridge.

[0026] In the aforementioned cable-stayed bridge beam-end traction lifting and anchoring device, the beam-end anchor is fixed to the top plate of the main beam of the cable-stayed bridge by adjusting its height to form an anchoring point.

[0027] In the aforementioned cable-stayed beam end traction lifting and anchoring device, the connecting rod is integrated with the movable anchoring traction and anchoring module and the movable lifting and cable delivery module through the connecting locking nut.

[0028] In the aforementioned cable-stayed beam end traction lifting and anchoring device, the vertical section of the L-shaped structure is provided with a locking and anchoring part that engages with the beam end.

[0029] In the aforementioned cable-stayed beam end traction lifting and anchoring device, the anchoring part includes a clamping plate fastened with bolts.

[0030] In the aforementioned cable-stayed beam end traction lifting and anchoring device, the axis of the movable lifting and cable-feeding module, the axis of the movable anchoring traction and anchoring module, and the cable to be installed are on the same axis.

[0031] In the aforementioned cable-stayed beam end traction lifting and anchoring device, both the movable anchoring traction and anchoring module and the movable lifting and cable delivery module are symmetrical structures.

[0032] In the above technical solution, the cable-stayed bridge beam-end traction, lifting, and anchoring device provided by this utility model has the following beneficial effects: The cable-stayed bridge beam-end traction, lifting, and anchoring device is structurally divided into two main functional structural areas: a mobile anchoring traction and anchoring module and a mobile lifting and cable-feeding module. These are used for beam-end traction, lifting and directional anchoring, and lifting and cable-feeding of the cable-stayed bridge, respectively. The device is lightweight, simple, and mobile, allowing for direct manual movement and anchoring. While ensuring functional requirements, the structure is safe and stable, does not occupy excessive working space, and facilitates on-site management. The use of this device can significantly reduce the construction alignment and operational safety hazards of cable-stayed bridges under the cantilever assembly and segmental installation process. The mobile anchoring traction and anchoring module and the mobile lifting and cable-feeding module can be quickly integrated by connecting railings. The mobile anchoring traction and anchoring module can also be used for beam-end traction, lifting, and anchoring of the cable-stayed bridge. The device's structural design is easy to operate, has wide engineering applicability, and is suitable for widespread use. The mobile lifting and cable feeding module incorporates a cable feeding steel roller design that places the cable being pulled along the inclined cable, avoiding the cumbersome process of reciprocating the cable feeding process, simplifying procedures, and improving efficiency. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0034] Figure 1 This is a construction drawing for the cable-stayed beam end traction lifting and anchoring in an embodiment of this utility model.

[0035] Figure 2 This is a schematic diagram of the cable-stayed beam end traction lifting and anchoring device according to an embodiment of this utility model.

[0036] Figure 3 This is a structural schematic diagram of the mobile anchoring traction and anchoring module according to an embodiment of the present invention.

[0037] Figure 4 This is a structural schematic diagram of the mobile lifting and cable feeding module according to an embodiment of the present invention.

[0038] Figure 5 This is a cross-sectional view of the mobile lifting and cable feeding module according to an embodiment of the present invention.

[0039] In the diagram: 1-Mobile anchoring and traction module; 2-Mobile lifting and cable delivery module; 3-Cable stay cable to be installed; 4-Installed cable stay cable; 5-Cable stay bridge main beam; 6-Guide wheel assembly; 7-Anchor head; 8-Traction ring; 9-Lifting lug; 10-Connecting tie rod; 11-Mobile wheel; 12-Beam end anchor; 13-Anchor buckle; 14-Traction cable; 15-Connecting crossbeam; 16-Connecting locking nut; 101-Traction longitudinal beam; 102-Diagonal brace; 103-Support column; 104-Lifting main beam; 201-Lifting longitudinal beam; 202-Cable delivery steel roller. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. It should be noted that similar reference numerals and letters in the following drawings indicate similar items; therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0041] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0042] See Figure 1-5 As shown, in one embodiment, the cable-stayed beam end traction lifting and anchoring device of this utility model includes,

[0043] A movable anchoring and traction module 1 is movably connected to the main girder 5 of the cable-stayed bridge. The movable anchoring and traction module 1 includes...

[0044] A pair of traction longitudinal beams 101 are arranged at intervals on the main girder 5 of the cable-stayed bridge and extend along the axial direction of the main girder 5. A portal frame structure is provided on the pair of traction longitudinal beams 101.

[0045] The beam end anchor 12 is located at one end of the traction longitudinal beam 101 to detachably fix the movable anchoring traction anchor module 1 to the cable-stayed bridge main beam 5. The beam end anchor has an L-shaped structure, and the horizontal section of the L-shaped structure is provided with anchor buckles for engaging the beam end of the cable-stayed main beam.

[0046] A pair of traction rings 8 are respectively located at the other end of the traction longitudinal beam 101, and the traction rings 8 are equipped with guide wheel groups 6;

[0047] A mobile lifting and cable-feeding module 2, which is movably connected to the main girder 5 of the cable-stayed bridge, includes,

[0048] A pair of lifting longitudinal beams 201 are arranged at intervals on the main girder 5 of the cable-stayed bridge, and the lifting longitudinal beams 201 extend along the axial direction of the main girder 5 of the cable-stayed bridge. A portal frame structure is provided on the pair of lifting longitudinal beams 201.

[0049] The cable-feeding steel roller 202 is laterally connected between a pair of support columns 103;

[0050] The connecting rod 10 has one end detachably connected to the mobile anchoring traction and anchoring module 1, and the other end detachably connected to the mobile lifting and cable delivery module 2.

[0051] The cable-stayed cable 3 to be installed is mounted on the cable-feeding steel roller 202 to pass through the mobile lifting and cable-feeding module 2 and extend toward the mobile anchoring and traction module 1.

[0052] The traction cable 14 is connected to the guide wheel assembly 6 and is wound around the anchor head 7 of the stay cable 3 to be installed.

[0053] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, the portal structure includes,

[0054] A pair of supporting columns 103 are arranged vertically at intervals.

[0055] The main beam 104 is lifted and is laterally connected to the top of the pair of supporting columns 103.

[0056] Lifting lug 9 is installed on the lifting main beam 104.

[0057] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, a plurality of diagonal bracing rods 102 are further included. One end of each diagonal bracing rod 102 is connected to the support column 103, and the other end is connected to the traction longitudinal beam 101 or the hoisting longitudinal beam 201.

[0058] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, it further includes,

[0059] The connecting beam 15 is laterally connected between the pair of traction longitudinal beams 101 or laterally connected between the pair of hoisting longitudinal beams 201.

[0060] The movable wheel 11 is provided on the traction longitudinal beam 101 or the hoisting longitudinal beam 201 to slide and connect to the main beam 5 of the cable-stayed bridge.

[0061] In a preferred embodiment of the cable-stayed bridge beam-end traction lifting and anchoring device, the beam-end anchor 12 forms an anchoring point by adjusting its height and locking it onto the top plate of the main beam 5 of the cable-stayed bridge.

[0062] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, the connecting rod 10 is integrated with the movable anchoring traction and anchoring module 1 and the movable lifting and cable delivery module 2 via the connecting locking nut 16.

[0063] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, the movable anchoring traction and anchoring module 1 is located at the beam end of the main cable-stayed beam by the beam end anchor 12 and the anchor buckle 13.

[0064] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, the axis of the mobile lifting and cable-feeding module 2, the axis of the mobile anchoring traction and anchoring module 1, and the cable-stayed cable 3 to be installed are on the same axis.

[0065] In a preferred embodiment of the cable-stayed beam end traction lifting and anchoring device, the cable-stayed beam end traction lifting and anchoring device includes,

[0066] A movable anchoring and traction module 1 is movably connected to the main girder 5 of the cable-stayed bridge. The movable anchoring and traction module 1 includes...

[0067] A pair of traction longitudinal beams 101 are arranged at intervals on the main girder 5 of the cable-stayed bridge, and the traction longitudinal beams 101 extend along the axial direction of the main girder 5 of the cable-stayed bridge.

[0068] The connecting beam 15 is laterally connected between the pair of traction longitudinal beams 101.

[0069] A pair of support columns 103 are erected on the traction longitudinal beam 101.

[0070] The lifting main beam 104 is laterally connected to the top of the pair of supporting columns 103. The pair of supporting columns 103 and the lifting main beam 104 form a portal structure.

[0071] Multiple diagonal braces 102, one end of which is connected to the support column 103, and the other end of which is connected to the traction longitudinal beam 101.

[0072] The movable wheel 11 is mounted on the traction longitudinal beam 101 to slidably connect to the main beam 5 of the cable-stayed bridge.

[0073] The beam end anchor 12 is located at one end of the traction longitudinal beam 101 to detachably fix the movable anchoring traction anchor module 1 to the cable-stayed bridge main beam 5. The beam end anchor 12 is equipped with an anchor buckle 13.

[0074] The traction ring 8 is located at the other end of the traction longitudinal beam 101.

[0075] Lifting lug 9 is installed on the lifting main beam 104;

[0076] A mobile lifting and cable-feeding module 2, which is movably connected to the main girder 5 of the cable-stayed bridge, includes,

[0077] A pair of lifting longitudinal beams 201 are arranged at intervals on the main girder 5 of the cable-stayed bridge, and the lifting longitudinal beams 201 extend along the axial direction of the main girder 5 of the cable-stayed bridge.

[0078] The connecting beam 15 is laterally connected between the pair of hoisting longitudinal beams 201.

[0079] A pair of support columns 103 are erected on the traction longitudinal beam 101.

[0080] The lifting main beam 104 is laterally connected to the top of the pair of supporting columns 103. The pair of supporting columns 103 and the lifting main beam 104 form a portal structure.

[0081] Multiple diagonal braces 102, one end of which is connected to the support column 103, and the other end of which is connected to the traction longitudinal beam 101.

[0082] The movable wheel 11 is mounted on the lifting longitudinal beam 201 to slide and connect to the main beam 5 of the cable-stayed bridge.

[0083] Lifting lug 9 is installed on the lifting main beam 104.

[0084] The cable-feeding steel roller 202 is laterally connected between a pair of support columns 103;

[0085] The connecting rod 10 has one end detachably connected to the connecting crossbeam 15 of the movable anchoring traction and anchoring module 1, and the other end detachably connected to the connecting crossbeam 15 of the movable lifting and cable feeding module 2.

[0086] The cable-stayed cable 3 to be installed is mounted on the cable-feeding steel roller 202 to pass through the mobile lifting and cable-feeding module 2 and extend toward the mobile anchoring and traction module 1.

[0087] The traction cable 14 is connected to the guide wheel assembly 6. The head end of the traction cable 14 is arranged on the winch fixed to the beam surface of the main girder 5 of the cable-stayed bridge, and the traction cable 14 is wrapped around the anchor head 7 of the cable-stayed cable 3 to be installed.

[0088] The construction process of the cable-stayed beam end traction lifting and anchoring device includes,

[0089] S1, After the main beam 5 of the cable-stayed bridge without cable stays is lifted into place and circumferentially welded, the movable anchoring traction and anchoring module 1 is pushed to the cable stays lifting and anchoring position for anchoring.

[0090] S2, push the mobile lifting and cable delivery module 2 to the cable lifting and cable delivery position, adjust the mobile anchoring traction and anchoring module 1, the mobile lifting and cable delivery module 2 and the cable guide axis of the cable to be installed to be on the same axis, use the connecting rod 10 to connect the mobile anchoring traction and anchoring module 1 and the mobile lifting and cable delivery module 2, and fix them to the main beam 5 of the cable-stayed bridge without cable installation to form an integral whole;

[0091] S3, install the guide wheel group 6 on the traction ring 8, and arrange the traction cable 14 on the guide wheel group 6. The head end of the traction cable 14 is arranged on the winch fixed to the beam surface of the main beam 5 of the cable-stayed bridge, and the traction cable 14 is hung on the anchor head 7 of the cable-stayed cable 3 to be installed.

[0092] S4, start the winch to pull the cable-stayed cable 3 to be installed towards the beam end of the main beam 5 of the cable-stayed bridge along the arrangement direction of the guide wheel group 6 and the traction cable 14;

[0093] S5. After the cable to be installed 3 is pulled to the position of the mobile lifting and cable delivery module 2, the anchor head 7 of the cable to be installed 3 is lifted and pulled by the hand-operated hoist hanging on the lifting lug 9, and placed on the cable delivery steel roller 202 of the mobile lifting and cable delivery module 2.

[0094] S6, continue to start the winch to pull the cable 3 to be installed forward to the position of the mobile anchoring traction and anchoring module 1;

[0095] S7, use a hand-operated hoist attached to the lifting lug 9 of the mobile anchoring traction and anchoring module 1 to lift and guide the anchor head 7 of the inclined cable 3 to be installed, so that the anchor cable in front of the anchor head 7 can be anchored into the inclined cable.

[0096] S8. After the stay cable is anchored, remove the connecting rod 10 and the beam end anchor 12, and push the mobile anchoring traction anchoring module 1 and the mobile lifting cable delivery module 2 to a place that does not obstruct construction. Then use steel to hold the moving wheel 11 to prevent slippage.

[0097] S9. Following steps S1 to S8, complete the traction and anchoring construction of each segment of the cable-stayed bridge main beam 5.

[0098] Furthermore, step S6 also includes:

[0099] S61, when the cable-stayed cable 3 to be installed is placed on the cable-feeding steel roller 202 and the winch is used to pull the cable-stayed cable forward towards the beam end, if the lifting distance is too large and the cable-stayed cable droops and touches the beam surface structure, the pulling work of the cable-stayed cable 3 to be installed is temporarily suspended.

[0100] S62, push the mobile lifting and cable delivery module 2 forward to reduce the spacing between the traction lifting points of the stay cable 3 to be installed, and avoid the stay cable sagging and touching the beam surface structure;

[0101] S63. After the mobile lifting and cable feeding module 2 is pushed to the adjusted position, tighten the connecting locking nut 16 to fit tightly against the connecting crossbeam 15 of the mobile lifting and cable feeding module 2, so that the mobile anchoring traction anchoring module 1 and the mobile lifting and cable feeding module 2 form a stable integral structure again.

[0102] In one embodiment, the guide wheel assembly 6 is mounted on the traction ring 8 to install the traction cable 14 to sequentially pull the stay cable 3 to be installed forward to the mobile lifting and cable delivery module 2 and the mobile anchoring and traction module 1.

[0103] In one embodiment, the traction ring 8 is welded and fixed to the traction longitudinal beam 101 of the movable anchoring traction and anchoring module 1.

[0104] In one embodiment, the connecting rod 10 passes through the center of the connecting beam of the movable anchoring traction anchoring module 1 and the movable lifting and cable feeding module 2, and is fixed with the connecting locking nut 16, so that the relative distance between the movable anchoring traction anchoring module 1 and the movable lifting and cable feeding module 2 is fixed and cannot be moved.

[0105] In one embodiment, the cable-stayed bridge beam-end traction and anchoring device includes a movable anchoring and traction anchoring module 1, a movable lifting and cable-feeding module 2, a cable-stayed bridge main beam 5 to be installed, an installed cable-stayed bridge main beam 4, a guide wheel assembly 6, a traction ring 8, a connecting rod 10, and a beam-end anchor 12. The movable anchoring and traction anchoring module 1 is moved forward to the beam-end of the cable-stayed bridge main beam 5 where no cable-stayed bridge main beam 5 has been installed, where the cable-stayed bridge main beam 5 is lifted and anchored. The movable anchoring and traction anchoring module 1 is fixed to the beam-end of the cable-stayed bridge main beam 5 where no cable-stayed bridge main beam 5 has been installed by the beam-end anchor 12 and anchor buckles 13. After the movable anchoring and traction anchoring module 1 is anchored, the movable lifting and cable-feeding module 2 is moved forward to the cable-stayed bridge lifting and cable-feeding position. The axis of the movable lifting and cable-feeding module 2 and the movable anchoring and traction anchoring module 1 is on the same axis as the cable guide tube of the cable-stayed bridge main beam 3 to be installed.

[0106] In this embodiment, the connecting rod 10 passes through the center of the connecting beam 15 of the mobile anchoring traction and anchoring module 1 and the mobile lifting and cable delivery module 2, respectively, and is fixed with the connecting locking nut 16, so that the relative distance between the mobile anchoring traction and anchoring module 1 and the mobile lifting and cable delivery module 2 is fixed and cannot move. The traction ring 8 is welded and fixed to the traction longitudinal beam 101 of the mobile anchoring traction and anchoring module 1. The guide wheel group 6 is hung on the traction ring 8 and is used to install the traction cable 14 to pull the inclined cable 3 to be installed forward to the mobile lifting and cable delivery module 2 and the mobile anchoring traction and anchoring module 1 in sequence.

[0107] The construction process of the cable-stayed beam end traction lifting and anchoring device includes:

[0108] S1. After the main beam 5 of the cable-stayed bridge without cable stays is lifted into place and circumferentially welded, the movable anchoring traction module 1 is manually pushed to the cable stays lifting and anchoring position for anchoring.

[0109] S2. Manually push the mobile lifting and cable delivery module 2 to the cable lifting and cable delivery position, and adjust the axis of the cable guide tube of the mobile anchoring traction and anchoring module 1, the mobile lifting and cable delivery module 2, and the cable to be installed cable 3 to be on the same axis. Then use the connecting rod 10 to fix the mobile anchoring traction and anchoring module 1 and the mobile lifting and cable delivery module 2 to the main beam 5 of the cable-stayed bridge without cable installation to form a whole.

[0110] S3. Install the guide wheel assembly 6 on the traction ring 8, and arrange the traction cable 14 on the guide wheel assembly 6. The head end of the traction cable 14 is arranged on the beam surface of the main girder 5 of the cable-stayed bridge and the tail end of the traction cable is hung on the anchor head 7 of the cable-stayed cable 3 to be installed.

[0111] S4. Start the traction winch and pull the stay cable 3 to be installed towards the beam end along the arrangement direction of the guide wheel group 6 and the traction cable 14.

[0112] S5. After the cable to be installed is pulled to the position of the mobile lifting and cable delivery module 2, the cable to be installed is lifted and pulled by the hand-operated hoist hanging at the lifting lug 9 and placed on the cable delivery steel roller 202 of the mobile lifting and cable delivery module 2.

[0113] S6. Continue to start the traction winch to pull the cable 3 to be installed to the position of the mobile anchoring traction and anchoring module 1.

[0114] S7. Use a hand-operated hoist attached to the lifting lug 9 to lift and guide the anchor head 7 of the inclined cable 3 to be installed, and assist the anchor cable in front of the anchor head 7 to carry out the inclined cable anchoring operation.

[0115] S8. After the stay cable is anchored, remove the connecting rod 10 and the beam end anchor 12, and manually push the mobile anchoring traction anchoring module 1 and the mobile lifting cable delivery module 2 to a place that does not obstruct construction. Then use steel to clamp the moving wheel 11 to prevent slippage.

[0116] S9. Following steps S1 to S8, complete the traction and anchoring construction of each segment of the cable-stayed bridge main beam 5.

[0117] Furthermore, step S1 also includes the following steps:

[0118] S11. Adjust the height and groove of the beam end anchor 12, and fix it on the top plate of the main beam 5 of the cable-stayed bridge without cable stays installed to form an anchor point.

[0119] S12. Using the anchor clips 13 arranged on the movable anchoring traction anchoring module 1, insert them into the height adjustment hole slot on the beam end anchor 12, thereby fixing the movable anchoring traction anchoring module 1 onto the main beam 5 without cable stays installed.

[0120] Furthermore, step S2 also includes the following steps:

[0121] S21. The connecting rods 10 are respectively inserted into the connecting beams 15 of the mobile anchoring traction anchoring module 1 and the mobile lifting and cable delivery module 2, and the connecting fastening nuts 16 are installed on the beam ends of the connecting rods 10 to fix them, so that the relative distance between the mobile anchoring traction anchoring module 1 and the mobile lifting and cable delivery module 2 is fixed and cannot be moved.

[0122] Furthermore, step S6 also includes the following steps:

[0123] S61. When the stay cable 3 to be installed is arranged on the cable feeding steel roller 202 and the traction winch is used to move the stay cable forward towards the beam end, if the lifting distance is too large and the stay cable may sag and touch the beam surface structure, the traction work of the stay cable to be installed shall be temporarily suspended.

[0124] S62. Manually push the mobile lifting and cable delivery module 2 forward to reduce the spacing between the traction and lifting points of the stay cable 3 to be installed, thereby avoiding the stay cable from sagging and touching the beam surface structure.

[0125] S63. After the mobile lifting and cable delivery module 2 is manually pushed and adjusted to a suitable position, tighten the connecting locking nut 16 to fit tightly against the connecting crossbeam 15 of the mobile lifting and cable delivery module 2, so that the mobile anchoring traction anchoring module 1 and the mobile lifting and cable delivery module 2 form a stable and integrated structure again.

[0126] Furthermore, step S7 also includes the following steps:

[0127] S71. When the mobile anchoring traction anchoring module 1 assists in anchoring the stay cable, a guide rope is arranged at the intersection of the support column and the diagonal brace to assist in adjusting the cross-sectional position of the stay cable anchoring.

[0128] Finally, it should be noted that the described embodiments are only some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0129] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A cable-stayed beam end traction lifting and anchoring device, characterized in that, It includes, A movable anchoring and traction module, which is movably connected to the main girder of a cable-stayed bridge, includes the following components: A pair of traction longitudinal beams are spaced apart on the main girder of the cable-stayed bridge and extend along the axial direction of the main girder. A portal frame structure is provided on the pair of traction longitudinal beams. The beam-end anchor is located at one end of the traction longitudinal beam to detachably fix the movable anchoring traction anchor module to the main beam of the cable-stayed bridge. The beam-end anchor has an L-shaped structure, and the horizontal section of the L-shaped structure is provided with anchor buckles for engaging the beam end of the cable-stayed main beam. A pair of traction rings are respectively located at the other end of the traction longitudinal beam, and the traction rings are equipped with guide wheel sets; A mobile lifting and cable-feeding module, which can be movably connected to the main girder of a cable-stayed bridge, includes the following components: A pair of lifting longitudinal beams are spaced apart on the main girder of the cable-stayed bridge and extend along the axial direction of the main girder. A portal frame structure is provided on the pair of lifting longitudinal beams. The cable feed rollers are laterally connected between a pair of support columns; The connecting rod has one end detachably connected to the mobile anchoring traction and anchoring module, and the other end detachably connected to the mobile lifting and cable delivery module. The stay cable to be installed is erected on the cable feeding steel roller to pass through the mobile lifting cable feeding module and extend toward the mobile anchoring traction and anchoring module; A traction cable, which is connected to the guide wheel assembly and is wound around the anchor head of the stay cable to be installed.

2. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, The portal structure includes, A pair of supporting columns, which are erected at intervals. The main beam is lifted and connected laterally to the top of the pair of supporting columns. Lifting lugs are installed on the lifting main beam.

3. The cable-stayed beam end traction lifting and anchoring device according to claim 2, characterized in that, It also includes multiple diagonal braces, one end of which is connected to the support column and the other end of which is connected to the traction longitudinal beam or the hoisting longitudinal beam.

4. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, It also includes, A connecting beam is laterally connected between the pair of traction longitudinal beams or between the pair of hoisting longitudinal beams. A movable wheel is provided on the traction longitudinal beam or the hoisting longitudinal beam to slide and connect the main beam of the cable-stayed bridge.

5. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, The beam end anchor is formed by adjusting its height and locking it onto the top plate of the main beam of the cable-stayed bridge to create an anchoring point.

6. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, The connecting rod is integrated with the movable anchoring and traction module and the movable lifting and cable delivery module through the connecting locking nut.

7. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, The vertical section of the L-shaped structure is provided with a locking anchor that engages with the beam end.

8. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, The anchoring part includes a clamping plate fastened with bolts.

9. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, The axis of the mobile lifting and cable delivery module, the axis of the mobile anchoring and traction module, and the stay cable to be installed are on the same axis.

10. The cable-stayed beam end traction lifting and anchoring device according to claim 1, characterized in that, Both the mobile anchoring and traction anchoring module and the mobile lifting and cable delivery module have symmetrical structures.

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