CN220704319U - Main cable structure of suspension bridge - Google Patents
Main cable structure of suspension bridge Download PDFInfo
- Publication number
- CN220704319U CN220704319U CN202321791573.1U CN202321791573U CN220704319U CN 220704319 U CN220704319 U CN 220704319U CN 202321791573 U CN202321791573 U CN 202321791573U CN 220704319 U CN220704319 U CN 220704319U
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- finished
- anchor head
- main cable
- cable
- rope
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- 239000000725 suspension Substances 0.000 title claims abstract description 15
- 238000007789 sealing Methods 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000004873 anchoring Methods 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model relates to a main cable structure of a suspension bridge, and belongs to the field of bridge cables. Including finished rope and main cable strand, the one end anchor of finished rope, the other end with main cable strand is connected, its characterized in that: the other end of the finished cable is provided with a finished cable connecting anchor head, the end part of the main cable strand is provided with a main cable strand anchor head, the finished cable connecting anchor head is connected with a connecting piece between the main cable strand anchor heads, and the connecting piece at least can freely rotate relative to the finished cable connecting anchor head or the main cable strand anchor head. When the finished cable is tensioned, the following rotation of the main cable strand caused by back torsion can be eliminated through the self-rotating connecting piece, so that hidden danger is eliminated.
Description
Technical Field
The utility model discloses a main cable structure of a suspension bridge, and belongs to the technical field of bridge cables.
Background
The main cable is a key bearing member of the suspension bridge and is formed by assembling a plurality of parallel steel wire strands. Each strand of the main cable diverges at the side span or the anchor span section through a scattered cable saddle or a scattered cable sleeve, and each strand is independently anchored to the main beam or the anchor. The parallel steel wire strands are braided into bundles by high-strength steel wires, shaping wrapping belts are arranged on the bundles at certain intervals, and the two ends of the bundles are provided with consolidation anchors.
Chinese patent CN216973119U discloses a main cable strand structure of a suspension bridge, and this scheme provides an anchoring connection construction scheme of the main cable strand: the anchoring section at the girder or the anchorage adopts a finished rope, and the finished rope and the main rope strand are connected through a connecting component with double-head left and right threads. The anchoring area adopts a finished rope, and has good anti-corrosion effect.
The technology has the following defects: 1) Because the weight of the finished cable and the main cable strand component is large, when the double-head threaded connecting component is installed in a screwing mode, the finished cable and the main cable strand are required to be synchronously hoisted and centered, the field operation is difficult, and the construction is inconvenient; 2) Because the finished rope is required to be spirally twisted into a bundle when being manufactured, the back-twisting rotation is caused when the finished rope is tensioned, so that the following torsion of the connecting component and the main rope strand can be caused, and the main rope strand is adversely affected.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a main cable structure of a suspension bridge aiming at the prior art, which is convenient for connection and installation between a main cable strand and a finished cable and ensures that the main cable strand is not twisted after being tensioned and anchored.
The utility model solves the problems by adopting the following technical scheme: the utility model provides a suspension bridge main rope structure, includes finished rope and main rope strand, the one end anchor of finished rope, the other end with main rope strand is connected, its characterized in that: the other end of the finished cable is provided with a finished cable connecting anchor head, the end part of the main cable strand is provided with a main cable strand anchor head, the finished cable connecting anchor head is connected with the main cable strand anchor head through a connecting piece, and the connecting piece at least can freely rotate relative to the finished cable connecting anchor head or the main cable strand anchor head.
As one of the preferred embodiments of the present application, the connecting piece includes a connecting sleeve and a connecting rod, one of the finished cable connecting anchor head and the main cable strand anchor head is connected with the connecting sleeve, the other is connected with the connecting rod, the connecting sleeve is movably connected with the connecting rod, and the connecting rod can freely rotate relative to the connecting sleeve.
As one of the preferred embodiments of the present application, one end of the connecting rod is provided with a connecting rod connector, a bearing is provided in the connecting sleeve, and the connecting rod connector is provided in the bearing.
As one of the preferred embodiments of the present application, the bearing is a spherical thrust bearing, and the connecting rod coupler has a spherical surface that mates with the spherical thrust bearing.
As one of the preferred embodiments of the present application, the connecting sleeve is in threaded connection with the finished cable connection anchor head or the main cable strand anchor head, and the connecting rod is in threaded connection with the main cable strand anchor head or the finished cable connection anchor head.
As one of the preferred embodiments of the application, the one-end anchoring structure of the finished cable comprises an embedded pipe, an anchor backing plate, an anchor nut, a finished cable tensioning end anchor head and a sealing ring, wherein the finished cable tensioning end anchor head is arranged at the tail end of the embedded pipe, the anchor backing plate is arranged at the tail end of the embedded pipe, the anchor nut is screwed on the finished cable tensioning end anchor head, the finished cable body penetrates through the embedded pipe and is anchored in the finished cable tensioning end anchor head, and the sealing ring is sealed between the front-end embedded pipe and the finished cable body.
Compared with the prior art, the utility model has the advantages that: the following rotation of the main cable strand caused by back twisting during tensioning of the finished cable can be eliminated through the self-rotating connecting piece, so that adverse effects are avoided. The connection structure between the main cable strand and the finished cable strand is one-way threaded screwing, so that the requirement on the coaxiality of the finished cable strand and the main cable strand is low during installation operation, and the installation is relatively light and rapid.
Drawings
Fig. 1 is a schematic diagram of a main cable structure according to embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of a main cable according to embodiment 2 of the present utility model;
in the figure: the cable tensioning device comprises a finished cable tensioning end anchor head 1, an anchor nut 2, an anchor backing plate 3, a 4-embedded pipe, a 5-rubber ring, a 6-finished cable body, a 7-finished cable connecting anchor head 8, a connecting sleeve 9, a 901 connecting rod connector, a 10-main cable strand anchor head, a 11-main cable strand steel wire bundle, a 12-shaped wrapping belt, 13, a spherical bearing convex body and a 14-spherical bearing concave body.
Description of the embodiments
The present utility model is described in further detail below with reference to the accompanying drawings, which are exemplary and intended to be illustrative of the utility model and not to be construed as limiting the utility model. The text description in the embodiment corresponds to the drawings, the description related to the orientation is also based on the drawings, and the description is not to be construed as limiting the protection scope of the utility model.
Examples
The main cable structure of the suspension bridge comprises a finished cable and main cable strands, wherein the finished cable is arranged on an anchoring section of a main girder or an anchor, the main cable strands are main cable strand steel wire bundles 11 woven by high-strength steel wires, and winding and shaping wrapping belts 12 are wound at one end of each interval. The one end anchor structure of finished rope includes embedded pipe 4, anchor backing plate 3, anchor nut 2, finished rope stretch-draw end anchor head 1 and sealing washer 5, and finished rope stretch-draw end anchor head 1 sets up the end at embedded pipe 4, and anchor backing plate 3 sets up at embedded pipe 4 end, and anchor nut 2 revolves on finished rope stretch-draw end anchor head 1, and finished rope body 6 passes embedded pipe 4 and anchor in finished rope stretch-draw end anchor head 1, and sealing washer 5 seals between front end embedded pipe and finished rope body.
The anchoring structure of the main cable strand further comprises a connecting rod 9 and a connecting sleeve 8, wherein external threads are arranged at the front end of the connecting rod 9 and matched with internal threads of the anchor head 10 of the main cable strand, and the external threads and the internal threads can be connected through threads. The rear end of the connecting rod 9 is provided with a connector 901, the connector 901 is arranged in the connecting sleeve 8 in a penetrating way and connected in a buckling way, and the other end of the connecting sleeve 8 is connected with the finished rope connecting anchor head 7 in a threaded way.
As a connection change with the same function, the connecting rod 9 and the connecting sleeve 8 can be in direction change and are respectively connected with a finished cable and a main cable strand, namely, the front end of the connecting rod 9 is in threaded connection with the finished cable connected anchor head 7, the rear end of the connecting rod 9 is provided with the connecting rod connector 9, the connecting rod connector 9 is arranged inside the connecting sleeve 8 in a penetrating manner and is connected in a buckling manner, and the other end of the connecting sleeve 8 is in threaded connection with the main cable strand anchor head 10. A rotatable bearing is arranged between the connecting rod connector 907 and the connecting sleeve 8.
Examples
The present embodiment is a further improvement made on the basis of embodiment 1, in which the bearing is designed as a spherical thrust bearing, and the corresponding connecting rod connector is also machined to be spherical. Thereby the moving mode of the connecting rod and the connecting sleeve can be further improved.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (6)
1. The utility model provides a suspension bridge main rope structure, includes finished rope and main rope strand, the one end anchor of finished rope, the other end with main rope strand is connected, its characterized in that: the other end of the finished cable is provided with a finished cable connecting anchor head, the end part of the main cable strand is provided with a main cable strand anchor head, the finished cable connecting anchor head is connected with the main cable strand anchor head through a connecting piece, and the connecting piece at least can freely rotate relative to the finished cable connecting anchor head or the main cable strand anchor head.
2. The suspension bridge main cable structure according to claim 1, wherein: the connecting piece comprises a connecting sleeve and a connecting rod, one of the finished cable connecting anchor head and the main cable strand anchor head is connected with the connecting sleeve, the other is connected with the connecting rod, the connecting sleeve is movably connected with the connecting rod, and the connecting rod can freely rotate relative to the connecting sleeve.
3. The suspension bridge main cable structure according to claim 2, wherein: one end of the connecting rod is provided with a connecting rod connector, a bearing is arranged in the connecting sleeve, and the connecting rod connector is arranged in the bearing.
4. A suspension bridge main cable structure according to claim 3, wherein: the bearing is a spherical thrust bearing, and the connecting rod connector is provided with a spherical surface matched with the spherical thrust bearing.
5. The suspension bridge main cable structure according to claim 2, wherein: the connecting sleeve is in threaded connection with the finished cable connection anchor head or the main cable rope strand anchor head, and the connecting rod is in threaded connection with the main cable rope strand anchor head or the finished cable connection anchor head.
6. The suspension bridge main cable structure according to claim 1, wherein: the one end anchor structure of finished rope includes built-in pipe, anchor backing plate, anchor nut, finished rope stretch-draw end anchor head and sealing washer, and finished rope stretch-draw end anchor head sets up at the end of built-in pipe, and the anchor backing plate sets up at the pre-buried pipe end, and anchor nut revolves on finished rope stretch-draw end anchor head, and the finished rope body passes the built-in pipe and anchors in finished rope stretch-draw end anchor head, and the sealing washer seals between front end built-in pipe and finished rope body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321791573.1U CN220704319U (en) | 2023-07-10 | 2023-07-10 | Main cable structure of suspension bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321791573.1U CN220704319U (en) | 2023-07-10 | 2023-07-10 | Main cable structure of suspension bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220704319U true CN220704319U (en) | 2024-04-02 |
Family
ID=90449277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321791573.1U Active CN220704319U (en) | 2023-07-10 | 2023-07-10 | Main cable structure of suspension bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220704319U (en) |
-
2023
- 2023-07-10 CN CN202321791573.1U patent/CN220704319U/en active Active
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