Stay cable beam end traction lifting anchoring device and construction method thereof

Abstract

According to the stay cable beam end traction lifting anchoring device and the construction method thereof, in the device, a movable anchoring traction anchoring module is movably connected to a cable-stayed bridge main beam, a pair of traction longitudinal beams is provided with a door-type structure, and a beam end clamping anchor is arranged at one end of each traction longitudinal beam so as to detachably fix the movable anchoring traction anchoring module and the cable-stayed bridge main beam; the pair of traction rings are respectively arranged at the other ends of the traction longitudinal beams, and are provided with guide wheel groups; 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] The invention relates to the technical field of construction of a stay cable beam end, and in particular to a stay cable beam end traction, lifting and anchoring device and a construction method thereof. Background Art

[0002] Cable-stayed bridges have good spanning capacity, can reduce the height of long-span bridges, reduce structural weight, save construction materials and other advantages, and are gradually widely used in bridges across rivers, seas and valleys. Limited by operating conditions, cable-stayed bridges mostly use the cantilever assembly and section-by-section installation process. Under this process, the arrangement of beam end loads has a great impact on the construction line shape and operation safety, and the construction organization is difficult.

[0003] The cable-stayed cable is the main load-bearing component that directly transfers the weight of the main beam and the bridge deck to the tower. Currently, the mobile crane on the beam is mostly used to provide the cable lifting and delivery points to assist the anchoring construction of the cable-stayed bridge end. However, the mobile crane is a mobile heavy load, which is extremely unfavorable to the linearity, internal force control and symmetrical installation safety of the main beam of the cable-stayed bridge. In addition, the installation of the cable-stayed cable is generally hoisted and anchored one by one on the left and right sides of the middle and side spans of the cable-stayed bridge. There is a hidden danger of unbalanced deviation due to the left and right offset of the mobile crane arrangement, or the influence of the beam end load due to the change in the lifting distance, which greatly increases the size of the mobile crane. It requires extremely high safety and quality control in the operation.

[0004] The above information disclosed in this Background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is already known to a person of ordinary skill in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a device for traction, lifting and anchoring of the cable-stayed beam end and a construction method thereof, which does not use a car crane to assist the traction and anchoring construction of the cable-stayed beam end, and avoids the hidden danger of mechanical load on the beam end when the cantilever of the cable-stayed bridge is assembled and installed section by section. On the premise of meeting the construction requirements, a device structure with a lightweight structure, convenient operation, safety and reliability is used to solve the technical problems of no lifting points and adjustment points in the traction, lifting and direction adjustment of the cable-stayed beam end; a movable and easy-to-anchor standard device is used to solve the construction difficulties of difficult on-site operation, complicated working procedures and low work efficiency, thereby reducing the pressure on the control of construction line shape and operation safety when the cantilever of the cable-stayed bridge is assembled and installed section by section.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A device for pulling, lifting and anchoring a stay cable beam end of the present invention comprises:

[0008] The mobile anchoring and traction module is movably connected to the main beam of the cable-stayed bridge. The mobile anchoring and traction module includes:

[0009] A pair of traction longitudinal beams are arranged at intervals on the main beam of the cable-stayed bridge and extend axially along the main beam of the cable-stayed bridge. A portal structure is provided on the pair of traction longitudinal beams.

[0010] The beam end anchor is arranged at one end of the traction longitudinal beam to detachably fix the movable anchoring traction anchor module and the main beam of the cable-stayed bridge.

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

[0012] The mobile lifting and cable-feeding module is movably connected to the main beam of the cable-stayed bridge. The mobile lifting and cable-feeding module includes:

[0013] A pair of hoisting longitudinal beams are arranged at intervals on the main beam of the cable-stayed bridge and extend axially along the main beam of the cable-stayed bridge. A portal structure is provided on the pair of hoisting longitudinal beams.

[0014] A cable feeding steel roller, which is laterally connected between a pair of supporting columns;

[0015] A connecting rod, one end of which is detachably connected to the mobile anchoring and pulling anchor module, and the other end of which is detachably connected to the mobile lifting and rope feeding module;

[0016] The inclined cable to be installed is mounted on the cable feeding steel roller to pass through the mobile lifting and feeding module and extend toward the mobile anchoring and pulling anchor module;

[0017] A traction rope is connected to the guide wheel assembly and is clamped around the anchor head of the inclined cable to be installed.

[0018] The said one kind of inclined cable beam end is pulled and lifted into the anchor device, and the said portal structure comprises:

[0019] A pair of supporting columns are arranged vertically and spaced apart from each other.

[0020] A lifting main beam is transversely connected to the top of the pair of supporting columns,

[0021] A lifting lug is installed on the lifting main beam.

[0022] The device for traction, lifting and anchoring of the end of the inclined cable beam also includes a plurality of diagonal bracing rods, one end of each diagonal bracing rod is connected to the supporting column, and the other end is connected to the traction longitudinal beam or the lifting longitudinal beam.

[0023] The device for pulling and lifting the end of the inclined cable beam into the anchoring device also includes:

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

[0025] A moving wheel is arranged on the traction longitudinal beam or the hoisting longitudinal beam to be slidably connected to the main beam of the cable-stayed bridge.

[0026] The beam end of the cable-stayed bridge is pulled and hoisted into the anchor device, and the beam end anchor is clamped on the top plate of the main beam of the cable-stayed bridge to form an anchor point by adjusting the height.

[0027] In the device for pulling, lifting and anchoring the end of a cable-stayed beam, the connecting rod is connected to the fixing nut and forms a whole with the movable anchoring, pulling and anchoring module and the movable lifting and cable feeding module.

[0028] In the device for traction, lifting and anchoring of the beam end of the inclined cable, the movable anchoring, traction and anchoring module is buckled at the beam end of the inclined cable main beam by the beam end anchor.

[0029] In the device for traction, lifting and anchoring of a stayed cable beam end, the axis of the movable lifting and cable feeding module and the axis of the movable anchoring, traction and anchoring module are on the same axis as the stayed cable to be installed.

[0030] A construction method for a stay cable beam end traction lifting anchoring device comprises the following steps:

[0031] S1, after the main beam of the cable-stayed bridge without the cable-stay installed is hoisted into place and the circumferential welding is completed, the mobile anchoring and traction module is pushed to the position where the cable-stay is hoisted into place for anchoring;

[0032] S2, pushing the mobile lifting and cable feeding module to the position where the inclined cable is lifted and fed, adjusting the mobile anchoring and traction module, the mobile lifting and cable feeding module and the cable guide tube axis of the inclined cable to be installed to be on the same axis, connecting the mobile anchoring and traction module and the mobile lifting and cable feeding module with a connecting rod, and fixing them with the main beam of the cable-stayed bridge without the inclined cable installed to form a whole;

[0033] S3, installing the guide wheel assembly on the traction ring, and arranging a traction rope on the guide wheel assembly, wherein the head end of the traction rope is arranged on a winch fixed to the beam surface of the main beam of the cable-stayed bridge, and the traction rope is hung on the anchor head of the cable-stayed cable to be installed;

[0034] S4, starting the winch to pull the cable to be installed toward the end of the main beam of the cable-stayed bridge along the arrangement direction of the guide wheel group and the traction cable;

[0035] S5, after the inclined cable to be installed is pulled to the position of the mobile lifting and feeding cable module, the hand chain hoist hung at the lifting lug is used to hang the anchor head of the inclined cable to be installed for lifting and pulling, and the cable is placed on the cable feeding steel roller of the mobile lifting and feeding cable module;

[0036] S6, continue to start the winch to pull the inclined cable to be installed forward to the position of the mobile anchoring and pulling into the anchor module;

[0037] S7, using a hand chain hoist hung at the lifting lug of the mobile anchoring and traction module to hang the anchor head of the inclined cable to be installed for lifting and guiding, so that the pressure anchor cable in front of the anchor head performs the inclined cable anchoring operation;

[0038] S8, after the inclined cable is anchored, the connecting rod and the beam end anchor are removed, and the mobile anchoring and traction module and the mobile lifting and cable feeding module are pushed to a position where they do not hinder the construction, and then the moving wheels are clamped with steel sections to prevent sliding;

[0039] S9, according to steps S1 to S8, the traction and anchoring construction of the ends of the cable-stayed cables of each segment is completed in sequence along with the main beam of the cable-stayed bridge.

[0040] In a construction method for pulling and lifting a stay cable beam end into an anchoring device, the step S6 further comprises:

[0041] S61, when the inclined cable to be installed is arranged on the cable feeding steel roller and continues to be pulled forward to the beam end by the winch, if the lifting distance is too large and causes the inclined cable to sag and touch the beam surface structure, the pulling work of the inclined cable to be installed is temporarily suspended;

[0042] S62, pushing the mobile lifting and cable feeding module forward to reduce the spacing between the traction and lifting points of the inclined cables to be installed, so as to prevent the inclined cables from sagging and touching the beam surface structure;

[0043] S63, after the mobile lifting and cable feeding module is pushed to the adjustment position, the connecting clamping nut is screwed to fit tightly against the connecting crossbeam of the mobile lifting and cable feeding module, so that the mobile anchoring and traction anchoring module and the mobile lifting and cable feeding module form a stable integral structure again.

[0044] In the above technical scheme, the present invention provides a device for traction, lifting and anchoring of the beam end of the inclined cable, which has the following beneficial effects: the device for traction, lifting and anchoring of the beam end of the inclined cable is divided into structural areas to form two main functional structural areas, namely, a mobile anchoring, traction and anchoring module and a mobile lifting and cable delivery module, which are used for traction, lifting, adjusting and anchoring of the beam end of the inclined cable, and lifting and cable delivery, respectively. The device structure is lightweight and simple, and is mobile, which can be directly moved and anchored by hand. At the same time, under the premise of ensuring functional requirements, the structure is safe and stable, does not occupy too much working space, and is convenient for on-site management. The use of the device can significantly reduce the construction line type and operation safety hazards of the cable-stayed bridge under the process of cantilever assembly and section-by-section installation. The mobile anchoring, traction and anchoring module and the mobile lifting and cable delivery module are quickly formed into a whole by connecting the railings. The mobile anchoring, traction and anchoring module can also be used to carry out the traction, lifting and anchoring construction of the beam end of the inclined cable. The device structure is easy to operate, has a wide range of engineering applicability, and is suitable for promotion and use. The design of placing the cable feeding steel roller for the pulled inclined cable in the mobile lifting and feeding module avoids the cumbersome process of pulling and feeding the cable in a reciprocating stroke, simplifies the process and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0046] Figure 1 This is a construction drawing of pulling, lifting and anchoring the end of a stayed cable beam according to an embodiment of the present invention.

[0047] Figure 2 It is a schematic diagram of a device for pulling, lifting and anchoring a stay cable beam end according to an embodiment of the present invention.

[0048] Figure 3 It is a structural schematic diagram of a mobile anchoring and traction anchoring module according to an embodiment of the present invention.

[0049] Figure 4 It is a schematic structural diagram of a mobile lifting and cable feeding module according to an embodiment of the present invention.

[0050] Figure 5 It is a cross-sectional view of a mobile lifting and cable feeding module according to an embodiment of the present invention.

[0051] Figure 6 This is a flow chart of a device for traction, lifting and anchoring of a stayed cable beam end and a construction method thereof according to an embodiment of the present invention.

[0052] In the figure: 1-mobile anchoring and traction module; 2-mobile lifting and cable feeding module; 3-stayed cable to be installed; 4-installed stay cable; 5-main beam of cable-stayed bridge; 6-guide wheel group; 7-anchor head; 8-traction ring; 9-lifting lug; 10-connecting pull rod; 11-moving wheel; 12-beam end anchor; 13-anchor buckle; 14-traction cable; 15-connecting crossbeam; 16-connecting fixing nut; 101-traction longitudinal beam; 102-diagonal support rod; 103-support column; 104-lifting main beam; 201-lifting longitudinal beam; 202-cable feeding steel roller. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. It should be noted that similar numbers and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0054] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0055] See also Figure 1-6 As shown, in one embodiment, a device for pulling and lifting an anchoring of a stay cable beam end of the present invention comprises:

[0056] The mobile anchoring and traction module 1 is movably connected to the main beam 5 of the cable-stayed bridge. The mobile anchoring and traction module 1 comprises:

[0057] A pair of traction longitudinal beams 101 are arranged at intervals on the cable-stayed bridge main beam 5 and extend axially along the cable-stayed bridge main beam 5. A portal structure is provided on the pair of traction longitudinal beams 101.

[0058] The beam end anchor 12 is arranged at one end of the traction longitudinal beam 101 to detachably fix the mobile anchoring traction anchor module 1 and the cable-stayed bridge main beam 5.

[0059] A pair of traction rings 8, which are respectively arranged at the other end of the traction longitudinal beam 101, and the traction rings 8 are equipped with guide wheel groups 6;

[0060] The mobile lifting and cable-feeding module 2 is movably connected to the main beam 5 of the cable-stayed bridge. The mobile lifting and cable-feeding module 2 includes:

[0061] A pair of hoisting longitudinal beams 201 are arranged at intervals on the cable-stayed bridge main beam 5 and extend axially along the cable-stayed bridge main beam 5. A portal structure is provided on the pair of hoisting longitudinal beams 201.

[0062] A cable feeding steel roller 202, which is laterally connected between a pair of supporting columns 103;

[0063] A connecting rod 10, one end of which is detachably connected to the mobile anchoring and pulling anchor module 1, and the other end of which is detachably connected to the mobile lifting and cable feeding module 2;

[0064] The inclined cable 3 to be installed is mounted on the cable feeding steel roller 202 to pass through the mobile lifting and feeding module 2 and extend toward the mobile anchoring and pulling anchor module 1;

[0065] A traction rope 14 is connected to the guide wheel assembly 6 and is clamped around the anchor head 7 of the inclined cable 3 to be installed.

[0066] In a preferred embodiment of the device for pulling and lifting the end of a stayed cable into an anchor, the portal structure comprises:

[0067] A pair of supporting columns 103 are arranged vertically and spaced apart from each other.

[0068] The lifting main beam 104 is transversely connected to the top of the pair of supporting columns 103.

[0069] The lifting lug 9 is installed on the lifting main beam 104 .

[0070] In a preferred embodiment of the device for traction, lifting and anchoring of the end of the inclined cable beam, it also includes a plurality of diagonal braces 102 , one end of each diagonal brace 102 is connected to the supporting column 103 , and the other end is connected to the traction longitudinal beam 101 or the lifting longitudinal beam 201 .

[0071] In a preferred embodiment of the device for pulling and lifting the end of a stay cable into an anchor, the device further comprises:

[0072] The connecting beam 15 is transversely connected between the pair of traction longitudinal beams 101 or transversely connected between the pair of hoisting longitudinal beams 201.

[0073] The moving wheel 11 is arranged on the traction longitudinal beam 101 or the hoisting longitudinal beam 201 to be slidably connected to the main beam 5 of the cable-stayed bridge.

[0074] In a preferred embodiment of the device for pulling and lifting the end of a cable-stayed bridge beam into an anchor, the beam-end anchor 12 is clamped on the top plate of the main beam 5 of the cable-stayed bridge to form an anchor point by adjusting the height.

[0075] In a preferred embodiment of the device for pulling, lifting and anchoring the end of a cable-stayed beam, the connecting rod 10 is connected to the mobile anchoring, pulling and anchoring module 1 and the mobile lifting and cable feeding module 2 to form a whole through a connecting clamping nut 16 .

[0076] In a preferred embodiment of the device for traction and lifting anchoring of the beam end of the inclined cable, the movable anchoring traction anchoring module 1 is equipped with the beam end anchor 12 and the anchor buckle 13 at the beam end of the inclined cable main beam.

[0077] In a preferred embodiment of the device for traction, lifting and anchoring of a stayed cable beam end, the axis of the mobile lifting and cable feeding module 2 and the axis of the mobile anchoring, traction and anchoring module 1 are on the same axis as the stayed cable 3 to be installed.

[0078] In a preferred embodiment of the device for pulling, lifting and anchoring the end of a cable-stayed beam, the device for pulling, lifting and anchoring the end of a cable-stayed beam comprises:

[0079] The mobile anchoring and traction module 1 is movably connected to the main beam 5 of the cable-stayed bridge. The mobile anchoring and traction module 1 comprises:

[0080] A pair of traction longitudinal beams 101 are arranged at intervals on the cable-stayed bridge main beam 5 and the traction longitudinal beams 101 extend axially along the cable-stayed bridge main beam 5.

[0081] The connecting beam 15 is laterally connected between the pair of traction longitudinal beams 101.

[0082] A pair of supporting columns 103 are respectively erected on the traction longitudinal beam 101.

[0083] The lifting main beam 104 is transversely 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.

[0084] A plurality of diagonal braces 102, one end of each diagonal brace 102 is connected to the support column 103, and the other end is connected to the traction longitudinal beam 101,

[0085] The moving wheel 11 is arranged on the traction longitudinal beam 101 to be slidably connected to the main beam 5 of the cable-stayed bridge.

[0086] The beam end anchor 12 is arranged at one end of the traction longitudinal beam 101 to detachably fix the mobile anchoring traction anchor module 1 and the cable-stayed bridge main beam 5. The beam end anchor 12 is provided with an anchor buckle 13.

[0087] The traction ring 8 is arranged at the other end of the traction longitudinal beam 101.

[0088] A lifting lug 9, which is mounted on the lifting main beam 104;

[0089] The mobile lifting and cable-feeding module 2 is movably connected to the main beam 5 of the cable-stayed bridge. The mobile lifting and cable-feeding module 2 includes:

[0090] A pair of hoisting longitudinal beams 201 are arranged at intervals on the cable-stayed bridge main beam 5 and the hoisting longitudinal beams 201 extend axially along the cable-stayed bridge main beam 5.

[0091] The connecting beam 15 is laterally connected between the pair of lifting longitudinal beams 201.

[0092] A pair of supporting columns 103 are respectively erected on the traction longitudinal beam 101.

[0093] The lifting main beam 104 is transversely 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.

[0094] A plurality of diagonal braces 102, one end of each diagonal brace 102 is connected to the support column 103, and the other end is connected to the traction longitudinal beam 101,

[0095] The moving wheel 11 is arranged on the hoisting longitudinal beam 201 to be slidably connected to the main beam 5 of the cable-stayed bridge.

[0096] The lifting lug 9 is mounted on the lifting main beam 104.

[0097] A cable feeding steel roller 202, which is laterally connected between a pair of supporting columns 103;

[0098] A connecting rod 10, one end of which is detachably connected to the connecting beam 15 of the mobile anchoring and pulling anchor module 1, and the other end of which is detachably connected to the connecting beam 15 of the mobile lifting and rope feeding module 2;

[0099] The inclined cable 3 to be installed is mounted on the cable feeding steel roller 202 to pass through the mobile lifting and feeding module 2 and extend toward the mobile anchoring and pulling anchor module 1;

[0100] The traction cable 14 is connected to the guide wheel group 6, and the head end of the traction cable 14 is arranged on a winch fixed to the beam surface of the main beam 5 of the cable-stayed bridge, and the traction cable 14 is clamped around the anchor head 7 of the inclined cable 3 to be installed.

[0101] The construction method of the stay cable beam end traction lifting anchoring device comprises the following steps:

[0102] S1, after the main beam 5 of the cable-stayed bridge without the cable installed is hoisted into place and the circumferential welding is completed, the mobile anchoring and traction module 1 is pushed to the position where the cable is hoisted into the anchor position for anchoring;

[0103] S2, push the mobile lifting and cable feeding module 2 to the position where the inclined cable is lifted and fed, adjust the mobile anchoring and traction module 1, the mobile lifting and cable feeding module 2 and the cable guide axis of the inclined cable 3 to be installed to be on the same axis, use the connecting rod 10 to connect the mobile anchoring and traction module 1 and the mobile lifting and cable feeding module 2, and fix them with the main beam 5 of the cable-stayed bridge without the inclined cable installed to form a whole;

[0104] S3, installing the guide wheel group 6 on the traction ring 8, and arranging the traction rope 14 on the guide wheel group 6, the head end of the traction rope 14 is arranged on the winch fixed to the beam surface of the main beam 5 of the cable-stayed bridge, and the traction rope 14 is hung on the anchor head 7 of the inclined cable 3 to be installed;

[0105] S4, starting the winch to pull the to-be-installed stay cable 3 forward toward 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;

[0106] S5, after the inclined cable 3 to be installed is pulled to the position of the mobile lifting and feeding cable module 2, the hand chain hoist hung on the lifting lug 9 is used to hang the anchor head 7 of the inclined cable 3 to be installed for lifting and pulling, and the cable is placed on the cable feeding steel roller 202 of the mobile lifting and feeding cable module 2;

[0107] S6, continue to start the winch to pull the inclined cable 3 to be installed forward to the position of the mobile anchoring and pulling into the anchor module 1;

[0108] S7, using a hand chain hoist hung at the lifting lug 9 of the mobile anchoring and traction module 1 to hang the anchor head 7 of the inclined cable 3 to be installed for lifting and guiding, so that the pressure anchor cable in front of the anchor head 7 performs the inclined cable anchoring operation;

[0109] S8, after the inclined cable is anchored, the connecting rod 10 and the beam end anchor 12 are removed, and the mobile anchoring and traction module 1 and the mobile lifting and cable feeding module 2 are pushed to a position where they do not hinder the construction, and then the moving wheel 11 is clamped with a steel section to prevent sliding;

[0110] S9, according to steps S1 to S8, the traction and anchoring construction of the ends of the cable-stayed cables of each segment is completed in sequence along with the main beam 5 of the cable-stayed bridge.

[0111] In a preferred embodiment of the construction method of the stay cable beam end traction lifting and anchoring device, the step S6 further comprises:

[0112] S61, when the inclined cable 3 to be installed is arranged on the cable feeding steel roller 202 and continues to be pulled forward to the beam end by the winch, when the lifting distance is too large and causes the inclined cable to sag and touch the beam surface structure, the pulling work of the inclined cable 3 to be installed is temporarily suspended;

[0113] S62, pushing the mobile lifting and cable feeding module 2 forward to reduce the spacing between the traction and lifting points of the inclined cables 3 to be installed, so as to prevent the inclined cables from sagging and touching the beam surface structure;

[0114] S63, after the mobile lifting and cable feeding module 2 is pushed to the adjustment position, the connecting clamping nut 16 is screwed tightly against the connecting crossbeam 15 of the mobile lifting and cable feeding module 2, so that the mobile anchoring traction module 1 and the mobile lifting and cable feeding module 2 form a stable integral structure again.

[0115] In one embodiment, the beam end anchor 12 is an L-shaped structure, the horizontal section of the L-shaped structure is provided with an anchor buckle for clamping the beam end of the cable-stayed main beam, and the vertical section of the L-shaped structure is provided with an anchor portion for clamping the beam end. The anchor portion includes a clamping plate fastened by bolts.

[0116] In one embodiment, the mobile anchoring and pulling anchor module and the mobile lifting and rope delivery module are both symmetrical structures.

[0117] In one embodiment, the guide wheel assembly 6 is hung on the traction ring 8 to install the traction rope 14 to pull the inclined cable 3 to be installed forward to the mobile lifting and feeding cable module 2 and the mobile anchoring and traction anchoring module 1 in sequence.

[0118] In one embodiment, the traction ring 8 is welded and fixed on the traction longitudinal beam 101 of the mobile anchoring traction anchor module 1 .

[0119] In one embodiment, the connecting rod 10 passes through the center of the connecting beam of the mobile anchoring and traction module 1 and the mobile lifting and feeding module 2 respectively, and is fixed with a connecting clamping nut 16, so that the relative distance between the mobile anchoring and traction module 1 and the mobile lifting and feeding module 2 is fixed and cannot move.

[0120] In one embodiment, the device for traction, lifting and anchoring of the cable-stayed bridge beam end includes a mobile anchoring, traction and anchoring module 1, a mobile lifting and cable-feeding module 2, a cable-stayed cable 3 to be installed, an installed cable-stayed cable 4, a cable-stayed bridge main beam 5, a guide wheel group 6, a traction ring 8, a connecting rod 10, and a beam end clamping anchor 12. The mobile anchoring, traction and anchoring module 1 is moved forward to the beam end of the cable-stayed bridge main beam 5 where the cable-stayed cable is not installed, and the cable-stayed cable is lifted and anchored into place. The mobile anchoring, traction and anchoring module 1 is fixed to the beam end of the cable-stayed bridge main beam 5 where the cable-stayed cable is not installed by the beam end clamping anchor 12 equipped with the clamping anchor buckle 13. After the mobile anchoring, traction and anchoring module 1 is anchored, the mobile lifting and cable-feeding module 2 is moved forward to the cable-stayed cable lifting and cable-feeding position. The axis of the mobile lifting and cable-feeding module 2 and the mobile anchoring, traction and anchoring module 1 is on the same axis as the cable guide tube of the cable-stayed cable 3 to be installed.

[0121] In this embodiment, the connecting rod 10 passes through the center of the connecting crossbeam 15 of the mobile anchoring traction module 1 and the mobile lifting and feeding cable module 2, and is fixed with a connecting clamping nut 16, so that the relative spacing between the mobile anchoring traction module 1 and the mobile lifting and feeding cable module 2 is fixed and cannot move. The traction ring 8 is welded and fixed on the traction longitudinal beam 101 of the mobile anchoring traction module 1. The guide wheel group 6 is hung on the traction ring 8 to install the traction rope 14 to pull the inclined cable 3 to be installed forward to the mobile lifting and feeding cable module 2 and the mobile anchoring traction module 1 in sequence.

[0122] like Figure 6 As shown, the construction method of the stay cable beam end traction lifting anchoring device includes the following steps:

[0123] S1. After the main beam 5 of the cable-stayed bridge without the cable-stay installed is hoisted into place and the circumferential welding is completed, the mobile anchoring and traction module 1 is manually pushed to the position where the cable-stay is hoisted into the anchor and anchored.

[0124] S2, manually push the mobile lifting and cable delivery module 2 to the position where the inclined cable is lifted and delivered, adjust the mobile anchoring and traction module 1, the mobile lifting and cable delivery module 2 and the cable guide axis of the inclined cable 3 to be installed to be on the same axis. Then use the connecting rod 10 to fix the mobile anchoring and traction module 1 and the mobile lifting and cable delivery module 2 to the main beam 5 of the cable-stayed bridge without the inclined cable installed to form a whole.

[0125] 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 beam surface fixed winch of the main beam 5 of the cable-stayed bridge, and the tail end of the traction cable is hung on the anchor head 7 of the inclined cable 3 to be installed.

[0126] S4, start the traction winch to pull the inclined cable 3 to be installed toward the beam end along the arrangement direction of the guide wheel group 6 and the traction cable 14.

[0127] S5. After the inclined cable 3 to be installed is pulled to the position of the mobile lifting and feeding module 2, the hand winch hung on the lifting ear 9 is used to hang the inclined cable 3 to be installed at the anchor head 7 for lifting and pulling, and placed on the feeding steel roller 202 of the mobile lifting and feeding module 2.

[0128] S6. Continue to start the traction winch to pull the inclined cable 3 to be installed forward to the position of the mobile anchoring traction anchor module 1.

[0129] S7, use the hand chain hoist hung at the lifting lug 9 to hang the anchor head 7 of the inclined cable 3 to be installed for lifting and guiding, and assist the pressure anchor cable in front of the anchor head 7 to carry out the inclined cable anchoring operation.

[0130] S8. After the inclined cable is anchored, the connecting rod 10 and the beam end anchor 12 are removed, and the mobile anchoring and traction anchoring module 1 and the mobile lifting and cable feeding module 2 are manually pushed to a position where they do not hinder the construction, and then the moving wheel 11 is clamped with steel to prevent sliding.

[0131] S9. Follow steps S1 to S8 to complete the traction and anchoring construction of the ends of the cable-stayed cables of each segment in sequence along with the main beam 5 of the cable-stayed bridge.

[0132] Furthermore, step S1 further includes the following steps:

[0133] S11, adjusting the height and the groove of the beam end anchor 12, and fixing it on the top plate of the main beam 5 of the cable-stayed bridge without the cable-stayed cable installed, to form an anchor point.

[0134] S12, insert the anchor buckle 13 arranged on the mobile anchoring and traction module 1 into the height adjustment hole groove on the beam end anchor 12, and then fix the mobile anchoring and traction module 1 on the main beam 5 where the inclined cable is not installed.

[0135] Furthermore, step S2 further includes the following steps:

[0136] S21, the connecting rod 10 is respectively inserted into the connecting beam 15 of the mobile anchoring and traction module 1 and the mobile lifting and feeding module 2, and the connecting clamping nuts 16 are respectively installed on the beam ends of the connecting rod 10 to fix them, so that the relative distance between the mobile anchoring and traction module 1 and the mobile lifting and feeding module 2 is fixed and cannot move.

[0137] Furthermore, step S6 further includes the following steps:

[0138] S61. When the inclined cable 3 to be installed is arranged on the cable feeding steel roller 202 and continues to be pulled forward to the beam end by the traction winch, when the lifting distance is too large and the inclined cable may sag and touch the beam surface structure, the traction work of the inclined cable to be installed is temporarily suspended.

[0139] S62, manually push the mobile lifting and cable feeding module 2 forward to reduce the distance between the traction and lifting points of the inclined cable 3 to be installed, thereby avoiding the inclined cable from sagging and touching the beam surface structure.

[0140] S63, after the mobile lifting and cable feeding module 2 is manually pushed and adjusted to a suitable position, the connecting clamping nut 16 is screwed tightly against the connecting crossbeam 15 of the mobile lifting and cable feeding module 2, so that the mobile anchoring traction module 1 and the mobile lifting and cable feeding module 2 form a stable, integrated structure again.

[0141] Furthermore, step S7 further includes the following steps:

[0142] S71. When the mobile anchoring and traction anchoring module 1 assists the inclined cable in anchoring, a guide rope is arranged at the intersection of the supporting column and the diagonal brace to assist the adjustment of the cross-sectional position of the inclined cable in anchoring.

[0143] Finally, it should be noted that the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present application.

[0144] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that 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 device for pulling, lifting and anchoring the end of a cable-stayed beam, characterized in that: These include, The mobile anchoring and traction module is movably connected to the main beam of the cable-stayed bridge. The mobile anchoring and traction module includes: A pair of traction longitudinal beams are arranged at intervals on the main beam of the cable-stayed bridge and extend axially along the main beam of the cable-stayed bridge. A portal structure is provided on the pair of traction longitudinal beams. The beam end anchor is arranged at one end of the traction longitudinal beam to detachably fix the movable anchoring traction anchor module and the main beam of the cable-stayed bridge. A pair of traction rings, which are respectively arranged at the other end of the traction longitudinal beam, and the traction rings are equipped with guide wheel groups; The mobile lifting and cable-feeding module is movably connected to the main beam of the cable-stayed bridge. The mobile lifting and cable-feeding module includes: A pair of hoisting longitudinal beams are arranged at intervals on the main beam of the cable-stayed bridge and extend axially along the main beam of the cable-stayed bridge. A portal structure is provided on the pair of hoisting longitudinal beams. A cable feeding steel roller, which is laterally connected between a pair of supporting columns; A connecting rod, one end of which is detachably connected to the mobile anchoring and pulling anchor module, and the other end of which is detachably connected to the mobile lifting and rope feeding module; The inclined cable to be installed is mounted on the cable feeding steel roller to pass through the mobile lifting and feeding module and extend toward the mobile anchoring and pulling anchor module; A traction rope is connected to the guide wheel assembly and is clamped around the anchor head of the inclined cable to be installed.

2. A device for pulling, lifting and anchoring a stay cable beam end according to claim 1, characterized in that: The gate structure comprises: A pair of supporting columns are arranged vertically and spaced apart from each other. A lifting main beam is transversely connected to the top of the pair of supporting columns, A lifting lug is installed on the lifting main beam.

3. The device for pulling, lifting and anchoring the end of a stay cable beam according to claim 2, characterized in that: It also includes a plurality of diagonal braces, one end of each of which is connected to the supporting column, and the other end of each of which is connected to the traction longitudinal beam or the hoisting longitudinal beam.

4. The device for pulling, lifting and anchoring the end of a stay cable beam according to claim 1, characterized in that: Also includes, A connecting beam is transversely connected between the pair of traction longitudinal beams or between the pair of hoisting longitudinal beams. A moving wheel is arranged on the traction longitudinal beam or the hoisting longitudinal beam to be slidably connected to the main beam of the cable-stayed bridge.

5. The device for pulling, lifting and anchoring the end of a stay cable beam according to claim 1, characterized in that: The beam end anchor is clamped on the top plate of the main beam of the cable-stayed bridge to form an anchor point by adjusting the height.

6. The device for pulling, lifting and anchoring the end of a stayed cable beam according to claim 1, characterized in that: The connecting rod is connected with the fixing nut to form a whole with the movable anchoring and traction module and the movable lifting and rope feeding module.

7. The device for pulling, lifting and anchoring the end of a stay cable beam according to claim 1, characterized in that: The movable anchoring and traction anchoring module is buckled on the beam end of the inclined cable main beam by the beam end anchor.

8. The device for pulling, lifting and anchoring the end of a stay cable beam according to claim 1, characterized in that: The axis of the mobile lifting and cable feeding module and the axis of the mobile anchoring and pulling anchor module are on the same axis as the inclined cable to be installed.

9. A construction method for a stay cable beam end traction, lifting and anchoring device according to any one of claims 1 to 8, characterized in that: It includes the following steps, S1, after the main beam of the cable-stayed bridge without the cable-stay installed is hoisted into place and the circumferential welding is completed, the mobile anchoring and traction module is pushed to the position where the cable-stay is hoisted into place for anchoring; S2, pushing the mobile lifting and cable feeding module to the position where the inclined cable is lifted and fed, adjusting the mobile anchoring and traction module, the mobile lifting and cable feeding module and the cable guide tube axis of the inclined cable to be installed to be on the same axis, connecting the mobile anchoring and traction module and the mobile lifting and cable feeding module with a connecting rod, and fixing them with the main beam of the cable-stayed bridge without the inclined cable installed to form a whole; S3, installing the guide wheel assembly on the traction ring, and arranging a traction rope on the guide wheel assembly, wherein the head end of the traction rope is arranged on a winch fixed to the beam surface of the main beam of the cable-stayed bridge, and the traction rope is hung on the anchor head of the cable-stayed cable to be installed; S4, starting the winch to pull the cable to be installed toward the beam end of the main beam of the cable-stayed bridge along the arrangement direction of the guide wheel group and the traction cable; S5, after the inclined cable to be installed is pulled to the position of the mobile lifting and feeding module, the hand chain hoist hung at the lifting lug is used to hang the anchor head of the inclined cable to be installed for lifting and pulling, and the cable is placed on the cable feeding steel roller of the mobile lifting and feeding module; S6, continue to start the winch to pull the inclined cable to be installed forward to the position of the mobile anchoring traction module; S7, using a hand chain hoist hung at the lifting lug of the mobile anchoring and traction module to hang the anchor head of the inclined cable to be installed for lifting and guiding, so that the pressure anchor cable in front of the anchor head performs the inclined cable anchoring operation; S8, after the inclined cable is anchored, the connecting rod and the beam end anchor are removed, and the mobile anchoring and traction module and the mobile lifting and cable feeding module are pushed to a position where they do not hinder the construction, and then the moving wheels are clamped with steel sections to prevent sliding; S9, according to steps S1 to S8, the traction and anchoring construction of the ends of the cable-stayed cables of each segment is completed in sequence along with the main beam of the cable-stayed bridge.

10. A construction method for a stay cable beam end traction, lifting and anchoring device according to claim 9, characterized in that: The step S6 further comprises: S61, when the inclined cable to be installed is arranged on the cable feeding steel roller and continues to be pulled forward to the beam end by the winch, if the lifting distance is too large and causes the inclined cable to sag and touch the beam surface structure, the pulling work of the inclined cable to be installed is temporarily suspended; S62, pushing the mobile lifting and cable feeding module forward to reduce the spacing between the traction and lifting points of the inclined cables to be installed, so as to prevent the inclined cables from sagging and touching the beam surface structure; S63, after the mobile lifting and cable feeding module is pushed to the adjustment position, the connecting clamping nut is screwed to fit tightly against the connecting crossbeam of the mobile lifting and cable feeding module, so that the mobile anchoring and traction anchoring module and the mobile lifting and cable feeding module form a stable integral structure again.

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