Anchoring adjusting device for catwalk bearing cable

Abstract

The utility model discloses a catwalk bearing cable anchoring and adjusting device which is composed of three sets of catwalk bearing cable anchoring and adjusting bodies which are identical and arranged side by side, and each set of catwalk bearing cable anchoring and adjusting body comprises a bearing cable anchoring embedded part, an anchoring device, an adjusting device and a bearing cable open type cable joint. Finish-rolled deformed steel bars in the adjusting device are connected with the anchoring distribution beam system. In the adjusting process, load is applied through the jack, force is transmitted to the rear anchoring distribution beam, the catwalk bearing cable is driven to move, the jack is adjusted to change the stress state of the bearing cable, then the functions of releasing and tightening the catwalk bearing cable are achieved, and the effect of adjusting the line type of the catwalk bearing cable is achieved. And the anchoring function is achieved by connecting the concrete beam and the catwalk bearing cable. Anchoring and adjusting construction of the catwalk bearing cable are conducted synchronously, the construction progress is accelerated, and the construction cost is reduced. The catwalk load-bearing cable can be rapidly and stably anchored and adjusted, and the catwalk load-bearing cable anchoring device is high in practicability and wide in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of catwalk construction of suspension bridges, in particular to a catwalk load-bearing cable anchoring and adjusting device. Background Art

[0002] As the most important high-altitude working channel for the construction of the upper structure of the suspension bridge, the catwalk can provide an important working platform for the main cable traction and erection, cable strand linear adjustment, cable tightening, cable clamp installation, sling installation, and anti-corrosion coating. During the construction of the suspension bridge, the linear shape of the main cable of the suspension bridge changes continuously with the progress of the construction. The catwalk load-bearing cable is the main load-bearing component of the catwalk structure. The linear adjustment of the catwalk load-bearing cable is the basis for the overall linear adjustment of the catwalk. For this reason, it is necessary to continuously adjust the linear shape of the catwalk load-bearing cable to meet the needs of the main cable construction. In previous projects, the anchoring and adjustment of the catwalk load-bearing cable were designed and constructed separately, which could not be effectively planned and there were many interference factors in the construction. Summary of the invention

[0003] The utility model aims to provide a catwalk load-bearing cable anchoring and adjusting device which can integrate the anchoring and adjusting functions of the catwalk load-bearing cable into a designed and constructed integrated manner.

[0004] The purpose of the utility model is achieved in this way:

[0005] A catwalk load-bearing cable anchoring and adjusting device, characterized in that it is composed of three sets of catwalk load-bearing cable anchoring and adjusting bodies which are completely identical and placed side by side, each set of catwalk load-bearing cable anchoring and adjusting bodies comprises: a load-bearing cable anchoring embedded part, an anchoring device, an adjusting device and a load-bearing cable open cable segment, wherein:

[0006] The bottom end of the load-bearing cable anchor embedded part is embedded in the concrete beam for anchoring, and an upwardly open embedded part groove is provided at the top of the load-bearing cable anchor embedded part extending out of the concrete beam, and embedded part pin holes on the same straight line are provided on two opposite side walls of the embedded part groove;

[0007] The anchoring device is composed of a front anchoring distribution beam and a rear anchoring distribution beam. The front anchoring distribution beam is a "T"-shaped structure composed of a front anchoring vertical rod and a front anchoring cross rod. A front anchoring pin hole is provided at the left end of the front anchoring vertical rod. After the left end of the front anchoring vertical rod is inserted into the embedded part groove at the top of the load-bearing cable anchoring embedded part, the connecting pin shaft passes through the embedded part pin hole and the front anchoring pin hole to hinge the front anchoring vertical rod of the front anchoring distribution beam with the top of the load-bearing cable anchoring embedded part. A front anchoring distribution beam circular hole penetrating the side wall of the front anchoring cross rod is respectively provided at the front and rear ends of the front anchoring cross rod of the front anchoring distribution beam; the rear anchoring distribution beam is a "T"-shaped structure composed of a rear anchoring vertical rod and a rear anchoring cross rod. A rear anchoring pin hole is provided at the right end of the rear anchoring vertical rod. A rear anchoring distribution beam circular hole penetrating the side wall of the rear anchoring cross rod is respectively provided at the front and rear ends of the rear anchoring cross rod of the rear anchoring distribution beam;

[0008] The adjusting device is composed of fine-rolled threaded steel, a tensioning frame and a jack. A tensioning frame and a jack are respectively arranged on the right side of the front and rear ends of the rear anchoring crossbar. The center holes of the two tensioning frames and the center holes of the jacks between the two jacks are coaxial with the two circular holes of the rear anchoring distribution beams on the rear anchoring crossbar. After the left ends of the two fine-rolled threaded steel bars pass through the two circular holes of the front anchoring distribution beams on the front anchoring crossbar, the left ends of the two fine-rolled threaded steel bars are respectively connected to the front anchoring distribution beams through steel pads and matching nuts. The supporting beams are connected and fixed together. The right ends of the two precision-rolled threaded steel bars respectively pass through the two circular holes of the rear anchor distribution beam on the rear anchor cross bar, the center holes of the tensioning frames of the two tensioning frames, and the center holes of the jacks between the two jacks from left to right. The right ends of the two precision-rolled threaded steel bars are respectively connected and fixed together with the rear anchor distribution beam, the tensioning frame, and the jack through steel pads and matching nuts. That is, the two precision-rolled threaded steel bars connect and fix the front anchor distribution beam and the rear anchor distribution beam, the tensioning frame, and the jack together.

[0009] A cable joint groove opening to the left is provided at the left end of the open cable joint of the load-bearing cable, and cable joint pin holes on the same straight line are provided on two opposite side walls of the cable joint groove. After the right end of the rear anchoring vertical rod is inserted into the cable joint groove at the left end of the open cable joint of the load-bearing cable, the connecting pin shaft passes through the cable joint pin hole and the rear anchoring pin hole to hinge the rear anchoring vertical rod of the rear anchoring distribution beam with the left end of the open cable joint of the load-bearing cable, the right end of the open cable joint of the load-bearing cable is connected and fixed to the left end of the catwalk load-bearing cable to achieve the anchoring effect, and the right end of the catwalk load-bearing cable is connected to the anchoring end of the catwalk load-bearing cable on the other side.

[0010] The load-bearing cable anchor embedded parts are made by welding double-jointed [32B channel steel and several connecting steel plates.

[0011] The tensioning frame is a rectangular frame structure made of several connected steel plates welded together. The right end of the tensioning frame is made into a bayonet shape to limit the jack, and the left end of the tensioning frame limits the rear anchor distribution beam.

[0012] The utility model is composed of three sets of catwalk load-bearing cable anchoring adjustment bodies that are completely identical and placed side by side. Each set of catwalk load-bearing cable anchoring adjustment bodies includes load-bearing cable anchoring embedded parts, anchoring devices, adjustment devices and load-bearing cable open cable joints. The fine-rolled threaded steel in the adjustment device is connected to the anchoring device. During the adjustment process, the load is applied by the jack to transfer the force to the rear anchoring distribution beam, driving the catwalk load-bearing cable to move. The jack is adjusted to change the stress state of the catwalk load-bearing cable, thereby achieving the function of tensioning and tightening the catwalk load-bearing cable, playing the role of adjusting the linear shape of the catwalk load-bearing cable, and achieving the anchoring function by connecting the concrete beam and the catwalk load-bearing cable.

[0013] Compared with the prior art, the advantages of the utility model are as follows:

[0014] (1) The anchoring device and adjusting device of the catwalk load-bearing cable are integrated to reduce material consumption, speed up construction progress and reduce construction costs;

[0015] (2) It can be applied to the anchoring and adjustment construction of most catwalk load-bearing cables;

[0016] (3) The anchoring device is made of steel sections, and the connection quality of each connection point is easy to check, which can effectively ensure the safety of the catwalk load-bearing cable;

[0017] (4) It has the advantages of simple structure, easy assembly and convenient installation and disassembly. It can realize fast and stable anchoring and adjustment of catwalk load-bearing cables. It is highly practical and widely applicable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the elevation layout diagram of the utility model;

[0019] Figure 2 Is for Figure 1 Top view after rotating 90 degrees;

[0020] Figure 3 It is a plan layout of the anchorage adjustment body of a single catwalk load-bearing cable;

[0021] Figure 4 It is the plan layout of the anchoring device for a single catwalk load-bearing cable;

[0022] Figure 5 yes Figure 4 Bottom view of

[0023] Figure 6 It is a structural schematic diagram of the embedded parts of the load-bearing cable anchorage, where: A is the front view and B is the left view;

[0024] Figure 7 It is a structural diagram of the tension frame and the jack;

[0025] Figure 8 It is a structural schematic diagram of the front anchor beam, where: A is the front view, B is the right view;

[0026] Fig. 9 It is a structural schematic diagram of the rear anchor beam, where: A is the front view, B is the right view;

[0027] Fig.10 It is a structural schematic diagram of an open cable segment of a load-bearing cable;

[0028] Fig.11 It is a structural schematic diagram of the tension frame, where: A is the front view, B is the right view;

[0029] Figure numerals: 1-load-bearing cable anchor embedded parts, 2-concrete beam, 3-finished rolled threaded steel, 4-front anchor distribution beam, 5-rear anchor distribution beam, 6-load-bearing cable open cable segment, 7-catwalk load-bearing cable, 8-connecting pin shaft, 9-jack, 10-tensioning frame, 11-steel pad, 12-matching nut, 13-pin hole, 14-double [32B channel steel, 15-connecting steel plate, 16-embedded part groove, 17- Front anchoring vertical rod, 18-front anchoring cross rod, 19-front anchoring pin hole, 20-front anchoring distribution beam circular hole, 21-rear anchoring cross rod, 22-rear anchoring vertical rod, 23-rear anchoring pin hole, 24-rear anchoring distribution beam circular hole, 25-tensioning frame center hole, 26-jack center hole, 27-cable joint groove, 28-cable joint pin hole, 29-tensioning frame rear anchoring distribution beam end limit, 30-tensioning frame jack top end limit. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the embodiments and with reference to the accompanying drawings.

[0031] See also Figure 1-8 A catwalk load-bearing cable anchoring adjustment device, which is composed of three sets of catwalk load-bearing cable anchoring adjustment bodies that are completely identical and placed side by side. Each set of catwalk load-bearing cable anchoring adjustment bodies includes a load-bearing cable anchoring embedded part 1, a precision-rolled threaded steel bar 3, a front anchoring distribution beam 4, a rear anchoring distribution beam 5, a load-bearing cable open cable section 6, a catwalk load-bearing cable 7, a connecting pin shaft 8, a jack 9, a tensioning frame 10, a steel pad 11, a matching nut 12, a pin hole 13, a double-piece [32B channel steel 14, and a connecting steel plate 15, wherein:

[0032] The bottom end of the load-bearing cable anchor embedded part 1 is embedded in the concrete beam 2 for anchoring, and an upwardly open embedded part groove 16 is provided at the top of the load-bearing cable anchor embedded part 1 extending out of the concrete beam 2, and embedded part pin holes 13 are provided on the two opposite side walls of the embedded part groove 16 on the same straight line;

[0033] The front anchor distribution beam 4 is a "T"-shaped structure consisting of a front anchor vertical rod 17 and a front anchor cross rod 18. A front anchor pin hole 19 is provided at the left end of the front anchor vertical rod 17. After the left end of the front anchor vertical rod 17 is inserted into the embedded part groove 16 at the top of the load-bearing cable anchor embedded part 1, the connecting pin shaft 8 passes through the embedded part pin hole 13 and the front anchor pin hole 19 to hinge the front anchor vertical rod 17 of the front anchor distribution beam 4 with the top of the load-bearing cable anchor embedded part 1. A front anchor distribution beam circular hole 20 penetrating the side wall of the front anchor cross bar 18 is respectively provided at the front and rear ends of the front anchor cross bar 18 of the distribution beam 4; the rear anchor distribution beam 5 is a "T"-shaped structure consisting of a rear anchor vertical bar 22 and a rear anchor cross bar 21, a rear anchor pin hole 23 is provided at the right end of the rear anchor vertical bar 22, and a rear anchor distribution beam circular hole 24 penetrating the side wall of the rear anchor cross bar 21 is respectively provided at the front and rear ends of the rear anchor cross bar 21 of the rear anchor distribution beam 5;

[0034] A tensioning frame 10 and a jack 9 are respectively arranged on the right side of the front and rear ends of the rear anchoring cross bar 21. The tensioning frame center holes 25 of the two tensioning frames 10 and the jack center holes 26 between the two jacks 9 are coaxial with the two rear anchoring distribution beam circular holes 24 on the rear anchoring cross bar 21. After the left ends of the two fine-rolled threaded steel bars 3 pass through the two front anchoring distribution beam circular holes 20 on the front anchoring cross bar 18, the left ends of the two fine-rolled threaded steel bars 3 are respectively connected and fixed to the front anchoring distribution beam 4 through the steel pad 11 and the matching nut 12. After the right ends of the two finely rolled threaded steel bars 3 pass through the two rear anchor distribution beam circular holes 24 on the rear anchor cross bar 21, the tensioning frame center holes 25 of the two tensioning frames 10, and the jack center holes 26 between the two jacks 9 from left to right, the right ends of the two finely rolled threaded steel bars 3 are connected and fixed together with the rear anchor distribution beam 5, the tensioning frame 10, and the jack 9 through the steel pad 11 and the matching nut 12, that is, the two finely rolled threaded steel bars 3 connect and fix the front anchor distribution beam 4 and the rear anchor distribution beam 5, the tensioning frame 10, and the jack 9 together;

[0035] A knot groove 27 opening to the left is provided at the left end of the open knot 6 of the load-bearing cable, and knot pin holes 28 on the same straight line are provided on two opposite side walls of the knot groove 27. After the right end of the rear anchoring vertical rod 22 is inserted into the knot groove 27 at the left end of the open knot 6 of the load-bearing cable, the connecting pin shaft 8 passes through the knot pin hole 28 and the rear anchoring pin hole 23 to hinge the rear anchoring vertical rod 22 of the rear anchoring distribution beam 5 with the left end of the open knot 6 of the load-bearing cable, the right end of the open knot 6 of the load-bearing cable is connected and fixed to the left end of the catwalk load-bearing cable 7 to achieve the anchoring effect, and the right end of the catwalk load-bearing cable 7 is connected to the anchoring end of the catwalk load-bearing cable on the other side.

[0036] The load-bearing cable anchor embedded part 1 is made by welding a double-jointed [32B channel steel 14 and a plurality of connecting steel plates 15.

[0037] The jacks 9 are through-type jacks, and two jacks form a group. The travel of the jacks 9 is synchronously controlled during the tensioning process, and the tensioning tonnage is selected according to the actual working conditions.

[0038] The tensioning frame 10 is a rectangular frame structure made of several connected steel plates welded together. The right end of the tensioning frame 10 is made into a bayonet shape to limit the jack 9. The left end of the tensioning frame 10 is optimized and set according to construction needs. In this embodiment, it is flat to limit the rear anchor distribution beam 5.

[0039] The diameter of the fine-rolled threaded steel bar 3 is 32mm; the diameter of the connecting pin shaft 8 is 88mm; the thickness of the steel pad 11 is not less than 20mm, and the middle pin hole ensures that the fine-rolled threaded steel bar 3 can pass through smoothly; the specifications and dimensions of the matching nuts 12 match the fine-rolled threaded steel bar 3, and double nuts are used to ensure construction safety.

[0040] The front anchor distribution beam 4 and the rear anchor distribution beam 5 are both formed by splicing steel sections.

[0041] The load-bearing cable anchoring embedded parts 1, the precision-rolled threaded steel bars 3, the front anchoring distribution beam 4, the rear anchoring distribution beam 5, the load-bearing cable open cable joint 6 and the connecting pin shaft 8 together constitute the catwalk load-bearing cable anchoring system.

[0042] The fine-rolled threaded steel bar 3, the front anchor distribution beam 4, the rear anchor distribution beam 5, the jack 9, the tensioning frame 10, the steel pad 11 and the matching nut 12 together constitute the catwalk load-bearing cable adjustment system.

[0043] See also Figure 1-7 As shown, a construction method of a catwalk load-bearing cable anchoring adjustment device comprises the following steps:

[0044] S1. Installation of the catwalk load-bearing cable anchoring system: after checking that the embedded position of the load-bearing cable anchoring embedded part 1 is correct, cast the concrete beam 2. After the concrete reaches the age requirement, install the front anchoring distribution beam 4 through the connecting pin 8; after the catwalk load-bearing cable 7 is in place, install the left end of the catwalk load-bearing cable 7 with the right end of the load-bearing cable open cable joint 6; connect and anchor the rear anchoring distribution beam 5 and the left end of the load-bearing cable open cable joint 6 by using the connecting pin 8; connect and anchor the front anchoring distribution beam 4 and the rear anchoring distribution beam 5 by using the fine-rolled threaded steel 3, steel pad 11, and matching nut 12. Since then, the installation of the catwalk load-bearing cable anchoring system is completed;

[0045] S2. Catwalk load-bearing cable adjustment: The jack 9 and the tensioning frame 10 are synchronously placed between the rear anchor distribution beam 5 and the steel pad 11 and the matching nut 12. The jack 9 applies a load to transfer the force to the rear anchor distribution beam 5. The rear anchor distribution beam 5 is subjected to the force to drive the catwalk load-bearing cable 7 to move in the direction of the load-bearing cable anchor embedded part 1 or in the opposite direction, so as to achieve the purpose of tightening or loosening the catwalk load-bearing cable 7.

[0046] S3. Repeat step S2 to make the line shape of the catwalk load-bearing cable 7 reach an ideal state, ensuring that the line shape of the catwalk load-bearing cable 7 is continuously adjusted with the changes in the construction progress to meet the needs of the main cable construction.

[0047] The present invention is not limited to the above-mentioned embodiments. For ordinary technicians in this technical field, several improvements and adjustments can be made without departing from the principle of the present invention, and these improvements and adjustments are also considered to be within the scope of protection of the present invention. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A catwalk load-bearing cable anchoring and adjusting device, characterized in that: It consists of three sets of catwalk load-bearing cable anchorage adjusting bodies that are completely identical and placed side by side. Each set of catwalk load-bearing cable anchorage adjusting bodies includes: load-bearing cable anchorage embedded parts, anchoring devices, adjusting devices and load-bearing cable open cable segments, among which: The bottom end of the load-bearing cable anchor embedded part is embedded in the concrete beam for anchoring, and an upwardly open embedded part groove is provided at the top of the load-bearing cable anchor embedded part extending out of the concrete beam, and embedded part pin holes on the same straight line are provided on two opposite side walls of the embedded part groove; The anchoring device is composed of a front anchoring distribution beam and a rear anchoring distribution beam. The front anchoring distribution beam is a "T"-shaped structure composed of a front anchoring vertical rod and a front anchoring cross rod. A front anchoring pin hole is provided at the left end of the front anchoring vertical rod. After the left end of the front anchoring vertical rod is inserted into the embedded part groove at the top of the load-bearing cable anchoring embedded part, the connecting pin shaft passes through the embedded part pin hole and the front anchoring pin hole to hinge the front anchoring vertical rod of the front anchoring distribution beam with the top of the load-bearing cable anchoring embedded part. A front anchoring distribution beam circular hole penetrating the side wall of the front anchoring cross rod is respectively provided at the front and rear ends of the front anchoring cross rod of the front anchoring distribution beam; the rear anchoring distribution beam is a "T"-shaped structure composed of a rear anchoring vertical rod and a rear anchoring cross rod. A rear anchoring pin hole is provided at the right end of the rear anchoring vertical rod. A rear anchoring distribution beam circular hole penetrating the side wall of the rear anchoring cross rod is respectively provided at the front and rear ends of the rear anchoring cross rod of the rear anchoring distribution beam; The adjusting device is composed of fine-rolled threaded steel, a tensioning frame and a jack. A tensioning frame and a jack are respectively arranged on the right side of the front and rear ends of the rear anchoring crossbar. The center holes of the two tensioning frames and the center holes of the jacks between the two jacks are coaxial with the two circular holes of the rear anchoring distribution beams on the rear anchoring crossbar. After the left ends of the two fine-rolled threaded steel bars pass through the two circular holes of the front anchoring distribution beams on the front anchoring crossbar, the left ends of the two fine-rolled threaded steel bars are respectively connected to the front anchoring distribution beams through steel pads and matching nuts. The supporting beams are connected and fixed together. The right ends of the two precision-rolled threaded steel bars respectively pass through the two circular holes of the rear anchor distribution beam on the rear anchor cross bar, the center holes of the tensioning frames of the two tensioning frames, and the center holes of the jacks between the two jacks from left to right. The right ends of the two precision-rolled threaded steel bars are respectively connected and fixed together with the rear anchor distribution beam, the tensioning frame, and the jack through steel pads and matching nuts. That is, the two precision-rolled threaded steel bars connect and fix the front anchor distribution beam and the rear anchor distribution beam, the tensioning frame, and the jack together. A cable joint groove opening to the left is provided at the left end of the open cable joint of the load-bearing cable, and cable joint pin holes in the same straight line are provided on two opposite side walls of the cable joint groove. After the right end of the rear anchoring vertical rod is inserted into the cable joint groove at the left end of the open cable joint of the load-bearing cable, the connecting pin shaft passes through the cable joint pin hole and the rear anchoring pin hole to hinge the rear anchoring vertical rod of the rear anchoring distribution beam with the left end of the open cable joint of the load-bearing cable, the right end of the open cable joint of the load-bearing cable is connected and fixed to the left end of the catwalk load-bearing cable, and the right end of the catwalk load-bearing cable is connected to the anchoring end of the catwalk load-bearing cable on the other side.

2. The catwalk load-bearing cable anchoring and adjusting device according to claim 1, characterized in that: The load-bearing cable anchor embedded parts are made by welding double-jointed [32B channel steel and several connecting steel plates.

3. The catwalk load-bearing cable anchoring and adjusting device according to claim 1, characterized in that: The tensioning frame is a rectangular frame structure made of several connected steel plates welded together. The right end of the tensioning frame is made into a bayonet shape to limit the jack, and the left end of the tensioning frame limits the rear anchor distribution beam.

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