CN219824927U - Stay cable soft and hard combined traction conversion device - Google Patents
Stay cable soft and hard combined traction conversion device Download PDFInfo
- Publication number
- CN219824927U CN219824927U CN202321127011.7U CN202321127011U CN219824927U CN 219824927 U CN219824927 U CN 219824927U CN 202321127011 U CN202321127011 U CN 202321127011U CN 219824927 U CN219824927 U CN 219824927U
- Authority
- CN
- China
- Prior art keywords
- stay cable
- steel strand
- conversion device
- tension rod
- rod
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000000149 penetrating effect Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 5
- 238000004873 anchoring Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Abstract
The utility model relates to a stay cable soft and hard combined traction conversion device which comprises a tension rod, wherein the left side of the tension rod is connected with a stay cable anchor head, the right side of the tension rod is connected with a steel strand or an extension tension rod, an anchor backing plate is sleeved outside the tension rod, a tension supporting leg is fixedly arranged on the right side of the anchor backing plate, a steel strand jack or a tension rod jack is arranged on the right side of the tension supporting leg, a steel strand is arranged on the right side of the steel strand jack in a penetrating manner, and the extension tension rod is arranged on the right side of the tension rod jack in a penetrating manner. The utility model realizes the conversion of the traction system from soft traction to hard traction in the traction process, has even stress and can not easily bend the tension rod.
Description
Technical Field
The utility model relates to the technical field of bridge engineering, in particular to a stay cable soft and hard combined traction conversion device.
Background
The conventional traction method for installing the stay cable comprises soft traction and hard traction, wherein the soft traction is to connect a plurality of steel strands with an anchor head through a connector and complete traction in-place anchoring of the stay cable by matching with a winch or a jack; the hard traction means that a rigid tension rod is connected with an anchor head through a connector. For traction installation of an ultra-long stay cable of a large-span cable-stayed bridge, if a soft traction mode is adopted, larger traction force is required for traction of the ultra-long stay cable, the number of steel strands is required to be increased to more than 40, the existing jack is not required in size, uneven stress is caused when the number of steel strands is increased, and an anchor head is inconvenient to pull into a cable guide pipe; if hard traction is adopted, the traction distance of the ultra-long stay cable is large, the tension rod adopted by the hard traction is a rigid large-diameter high-strength steel rod, and the tension rod is easy to bend along with the increase of the length of the tension rod.
Disclosure of Invention
The utility model aims to solve the defects of the prior art and provides a stay cable soft and hard combined traction conversion device.
The utility model adopts the following technical scheme to realize the aim: the utility model provides a stay cable soft and hard combination traction conversion device, includes and opens the pull rod, opens the pull rod left side and is connected with the stay cable anchor head, opens the pull rod right side and is connected with steel strand wires or extension and open the pull rod, and the outside cover of opening the pull rod is equipped with the anchor backing plate, and anchor backing plate right side fixed mounting has the stretch-draw spike, and steel strand wires jack or stretch-draw rod jack are installed on stretch-draw spike right side, and steel strand wires wear to steel strand wires jack right side, and extension is opened the pull rod and is worn to establish to stretching the pull rod jack right side.
Further, a fixing groove is formed in the tension rod, a temporary fixing snap ring is installed in the fixing groove, and the temporary fixing snap ring is fixed on the right side of the anchor backing plate.
Further, the temporary fixing snap ring is formed by combining two semicircular cast iron members, and is connected into a whole through a snap ring bolt.
Further, the tension rod is connected with the stay cable anchor head through a reducing nut, the reducing nut is of a threaded structure at two ends, one end of the reducing nut is screwed into the stay cable anchor head, and the tension rod is screwed into the other end of the reducing nut.
Further, the tension rod is connected with the steel strand through a steel strand connector.
Further, the stay cable anchor head is fixed on the right side of the anchor backing plate through an anchor nut.
Further, the stretching supporting feet are connected with the anchor backing plate through supporting foot bolts.
Further, one end of the steel strand connector is a thread, and the other end of the steel strand connector is a steel strand clamping piece.
The beneficial effects of the utility model are as follows: the utility model realizes the conversion of a traction system from soft traction to hard traction in the traction process, has even stress, can not easily bend a tension rod, and can traction an ultra-long stay cable.
Drawings
FIG. 1 is a schematic diagram of a step one of the embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a schematic structural diagram of a third step of the embodiment of the present utility model;
FIG. 4 is a schematic structural diagram of a step four according to the embodiment of the present utility model;
FIG. 5 is a schematic structural diagram of a fifth embodiment of the present utility model;
in the figure: 1-stay cables; 2-stretching a pull rod; 3-steel strand wires; 4-a steel strand jack; 5-stretching the supporting feet; 6-reducing nuts; 7-stay cable anchor heads; 8-anchor backing plates; 9-lengthening the tension rod; 10-pulling rod jacks; 11-temporarily fixing a clamping ring; 12-steel strand connector; 13-anchoring the nut; 14-a fixed groove; 15-supporting leg bolts; 16-snap ring bolts;
the drawings in the present utility model are schematic, and their sizes do not represent actual dimensions;
the embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Detailed Description
The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 1 to 5, the stay cable soft and hard combined traction conversion device comprises a tension rod 2, wherein the left side of the tension rod 2 is connected with a stay cable anchor head 7, the right side of the tension rod 2 is connected with a steel strand 3 or a lengthening tension rod 9, the steel strand 3 is a high-strength steel strand and is used for traction of the stay cable 1, an anchor backing plate 8 is sleeved on the outer side of the tension rod 2, and the anchor backing plate 8 provides supporting counter force in the traction process and temporary fixation. The tension rod 2 is provided with a fixing groove 14, the fixing groove 14 is provided with a temporary fixing snap ring 11, the temporary fixing snap ring 11 is fixed on the right side of the anchor backing plate 8, the temporary fixing snap ring 11 is formed by combining two semicircular cast iron components, and the temporary fixing snap ring 11 and the anchor backing plate are connected into a whole through a snap ring bolt 16. The right side of the anchor backing plate 8 is fixedly provided with a stretching supporting leg 5 through a supporting leg bolt 15, and the stretching supporting leg 5 is a welded steel structure member and provides support for the steel strand jack 4 and the stretching rod jack 10. The right side of the stretching supporting leg 5 is provided with a steel strand jack 4 or a stretching rod jack 10, the steel strand 3 is penetrated to the right side of the steel strand jack 4, and the stretching rod 9 is penetrated to the right side of the stretching rod jack 10. The tension rod 2 is connected with the stay cable anchor head 7 through the reducing nut 6, the reducing nut 6 is of a threaded structure at two ends, one end of the tension rod is screwed into the stay cable anchor head 7, and the tension rod 2 is screwed into the other end of the reducing nut 6. The tension rod 2 and the steel strand 3 are connected through a steel strand connector 12, one end of the steel strand connector 12 is a thread, and the other end is a steel strand clamping piece. The stay cable anchor head 7 is fixed on the right side of the anchor backing plate 8 through an anchor nut 13, and the anchor nut 13 is used for being pulled into position by the stay cable 1.
The operation is as follows when in use:
step one: the tension rod 2 is connected with the stay cable anchor head 7 by using the reducing nut 6, and the tension rod 2 is connected with the steel strand 3 by using the steel strand connector 12. And installing a stretching supporting foot 5 and a steel strand jack 4, and sequentially feeding the steel strand 3 through the stay cable 1 guide pipe, the stretching supporting foot 5 and the jack 4 to prepare for stretching.
Step two: and (3) starting to stretch the steel strand 3, pulling the stay cable 1, stopping stretching after the fixing groove 14 on the tension rod 2 exceeds the anchor backing plate 8, installing the temporary fixing snap rings 11, connecting the two semicircular temporary fixing snap rings 11 by using the snap ring bolts 16, and fixing the two semicircular temporary fixing snap rings at the fixing groove 14 of the tension rod 2.
Step three: the steel strand jack 4 retracts to lengthen the steel strand 3, and the temporary fixing snap ring 11 on the tension rod 2 is supported on the anchor backing plate 8 to form temporary fixing.
Step four: the connection between the steel strand 3 and the tension rod 2 is released, the tension rod 2 is lengthened, and the tension rod jack 10 is replaced.
Step five: and continuing to pull until the stay cable anchor head 7 exceeds the anchor backing plate 8, and fixing the stay cable anchor head 7 by using the anchor nut 13 to finish the traction of the stay cable 1.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the utility model is not limited to the above embodiments, but is intended to cover various modifications, either made by the method concepts and technical solutions of the utility model, or applied directly to other applications without modification, within the scope of the utility model.
Claims (8)
1. The utility model provides a stay cable soft and hard combination traction conversion device, a serial communication port, including stretching rod (2), stretching rod (2) left side is connected with stay cable anchor head (7), stretching rod (2) right side is connected with steel strand wires (3) or extension stretching rod (9), stretching rod (2) outside cover is equipped with anchor backing plate (8), anchor backing plate (8) right side fixed mounting has stretch-draw spike (5), steel strand wires jack (4) or stretch-draw rod jack (10) are installed on stretch-draw spike (5) right side, steel strand wires (3) wear to establish to steel strand wires jack (4) right side, extension stretching rod (9) wear to establish to stretch-draw rod jack (10) right side.
2. The stay cable soft and hard combined traction conversion device according to claim 1, wherein a fixing groove (14) is formed in the tension rod (2), a temporary fixing clamp ring (11) is installed in the fixing groove (14), and the temporary fixing clamp ring (11) is fixed on the right side of the anchor backing plate (8).
3. The stay cable soft and hard combined traction conversion device according to claim 2, wherein the temporary fixing snap ring (11) is formed by combining two semicircular cast iron members, and is connected into a whole through a snap ring bolt (16).
4. A stay cable soft and hard combined traction conversion device according to claim 3, characterized in that the tension rod (2) is connected with the stay cable anchor head (7) through a reducing nut (6), the reducing nut (6) is of a two-end thread structure, one end of the reducing nut is screwed into the stay cable anchor head (7), and the tension rod (2) is screwed into the other end of the reducing nut (6).
5. The stay cable soft and hard combined traction conversion device according to claim 4, wherein the tension rod (2) and the steel strand (3) are connected through a steel strand connector (12).
6. The stay cable soft and hard combined traction conversion device according to claim 5, wherein the stay cable anchor head (7) is fixed on the right side of the anchor backing plate (8) through an anchor nut (13).
7. The stay cable soft and hard combined traction conversion device according to claim 6 is characterized in that the tensioning support leg (5) and the anchor backing plate (8) are connected through a support leg bolt (15).
8. The stay cable soft and hard combined traction conversion device according to claim 7, wherein one end of the steel strand connector (12) is a screw thread, and the other end is a steel strand clamping piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321127011.7U CN219824927U (en) | 2023-05-11 | 2023-05-11 | Stay cable soft and hard combined traction conversion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321127011.7U CN219824927U (en) | 2023-05-11 | 2023-05-11 | Stay cable soft and hard combined traction conversion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219824927U true CN219824927U (en) | 2023-10-13 |
Family
ID=88275951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321127011.7U Active CN219824927U (en) | 2023-05-11 | 2023-05-11 | Stay cable soft and hard combined traction conversion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219824927U (en) |
-
2023
- 2023-05-11 CN CN202321127011.7U patent/CN219824927U/en active Active
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