CN222435065U - Novel nonlinear damping device for stay cable - Google Patents
Novel nonlinear damping device for stay cable Download PDFInfo
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- CN222435065U CN222435065U CN202420286243.5U CN202420286243U CN222435065U CN 222435065 U CN222435065 U CN 222435065U CN 202420286243 U CN202420286243 U CN 202420286243U CN 222435065 U CN222435065 U CN 222435065U
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- damping
- damping device
- rope
- stay cable
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- 238000013016 damping Methods 0.000 title claims abstract description 107
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 9
- 238000013461 design Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
本实用新型公开了一种斜拉索新型非线性阻尼装置，包括：内环、外环、阻尼绳，所述内环用于穿套拉索，所述外环套设于所述内环外，所述外环和所述内环之间设有间隙，所述外环通过所述阻尼绳与所述内环连接，所述阻尼绳在所述内环和所述外环之间交替缠绕。结构设计及零部件加工简单、组装便捷、安装及维护方便、无需外部支撑结构。
The utility model discloses a novel nonlinear damping device for a cable-stayed cable, comprising: an inner ring, an outer ring, and a damping rope, wherein the inner ring is used for inserting a cable, the outer ring is sleeved outside the inner ring, a gap is provided between the outer ring and the inner ring, the outer ring is connected to the inner ring through the damping rope, and the damping rope is alternately wound between the inner ring and the outer ring. The structural design and parts processing are simple, the assembly is convenient, the installation and maintenance are convenient, and no external support structure is required.
Description
Technical Field
The utility model relates to the field of prestress, in particular to a novel nonlinear damping device for a stay cable.
Background
The vibration of the cable-stayed bridge cable easily causes fatigue damage of the cable itself or an anchoring system, and influences the service life and the safety of the stayed cable and the structure thereof. It is therefore necessary to take cable vibration control measures for large-span cable-stayed bridges. Damping devices used for controlling vibration of stay cables in the prior engineering include viscous dampers, viscous shear dampers, magnetorheological dampers, viscoelastic dampers, rubber vibration dampers and the like. The damping of the medium is a hydraulic sealing structural design, the risk of ageing leakage failure exists, the damping of the high polymer material or rubber material solves the leakage problem of the hydraulic sealing structure, but the problem of reduction of the damping effect of the high polymer material or rubber after ageing is still solved, and the steel wire rope damper with all-metal and no sealing structure and obvious durability and damping effect is cited at present, but the construction application experience is less, the structural design and the installation are more complex, the construction convenience is poor, the cost is high, and the large-scale popularization and the application of engineering projects are not facilitated.
Disclosure of Invention
The utility model aims to provide a novel nonlinear damping device for a stay cable, which is simple in structural design and part processing, convenient to assemble, convenient to install and maintain and free from an external supporting structure.
The novel nonlinear damping device for the stay cable comprises an inner ring, an outer ring and a damping rope, wherein the inner ring is used for penetrating the stay cable, the outer ring is sleeved outside the inner ring, a gap is arranged between the outer ring and the inner ring, the outer ring is connected with the inner ring through the damping rope, and the damping rope is wound between the inner ring and the outer ring alternately.
In one embodiment, the inner ring comprises an inner fixing ring and an inner pressing ring, the inner pressing ring is mounted on the outer circumferential surface of the inner fixing ring, and the damping rope is clamped between the inner pressing ring and the inner fixing ring.
In one embodiment, the inner ring comprises at least two half rings that are circumferentially pieced together to form the inner ring.
In one embodiment, the half rings are provided with ear plates and half ring connectors, the ear plates are provided with ear holes, the ear holes of two adjacent half rings correspond to each other, and the half ring connectors penetrate through the two corresponding ear holes to connect the two adjacent half rings.
In one embodiment, the outer circumferential surface of the inner fixing ring is provided with a plurality of first grooves, the inner circumferential surface of the inner fixing ring is provided with a plurality of corresponding second grooves, and the damping ropes are embedded in a pair of corresponding first grooves and second grooves.
In one embodiment, the outer ring includes an outer fixing ring and an outer pressing ring mounted to an inner circumferential surface of the outer fixing ring, and the damping rope is sandwiched between the outer pressing ring and the outer fixing ring.
In one embodiment, the first end of the outer fixing ring is provided with a first flange, or the second end of the outer fixing ring is provided with a second flange, and the first flange or the second flange is used for being connected with the flange of the cable duct.
In one embodiment, the outer circumferential surface of the outer compression ring is provided with a plurality of third grooves, the inner circumferential surface of the outer fixing ring is provided with a plurality of corresponding fourth grooves, and the damping ropes are embedded in a pair of corresponding third grooves and fourth grooves.
In one embodiment, the inner ring, the damping rope, and the outer pressure ring are received within the outer retaining ring.
In one embodiment, the damping rope is wound in a spiral between the inner and outer rings.
Compared with the prior art, the novel nonlinear damping device for the stay cable has the advantages that:
1. According to the damping device, the damping rope supports the outer ring outside the inner ring, so that the damping device can provide damping and damping effects in multiple dimensions, and the damping rope is arranged on the stay cable through the outer fixing ring and the bolts in a spiral structure, so that the swing of the stay cable in multiple directions can be restrained. When the stay cable vibrates under wind and rain, traffic load or other conditions, the damping rope (steel wire rope) can consume energy and damp vibration through steel wire yielding and slippage, friction and backlog among strands and wires so as to realize the vibration damping function.
2. The damping device has the advantages that the units such as the outer ring, the inner ring, the damping rope and the like are relatively independent, can be freely detached through bolt connection, and are convenient to maintain and replace in the later period.
The utility model will become more apparent from the following description taken in conjunction with the accompanying drawings which illustrate embodiments of the utility model.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is an axial cross-sectional schematic view of a damping device according to an embodiment of the present utility model mounted to a cable duct;
FIG. 2 is a schematic left-hand view of a damping device according to an embodiment of the present utility model;
FIG. 3 is a schematic left-hand view of the inner ring in accordance with an embodiment of the present utility model;
FIG. 4 is a schematic top view of an inner ring according to an embodiment of the present utility model.
The inner ring, 101, the ear plate, 102, the earhole, 103, the semi-ring connecting piece, 104, the semi-ring, 11, the inner fixing ring, 111, the first groove, 12, the inner pressing ring, 121, the second groove, 122, the inner pressing piece, 20, the outer ring, 21, the outer fixing ring, 211, the first flange, 212, the second flange, 22, the outer pressing ring, 30, the damping rope, 40, the inhaul cable, 50, the cable duct, 51, the third flange, 52 and the fourth flange.
Detailed Description
Embodiments of the present utility model will now be described with reference to the accompanying drawings.
In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, unless explicitly stated or limited otherwise, the terms "mounted," "configured to," "connected," and the like are to be construed broadly as, for example, "connected" may be fixedly connected, may be detachably connected, or integrally connected, may be mechanically connected or electrically connected, may be directly connected or indirectly connected through an intermediate medium, and may be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in figures 1-4, the novel steel wire rope nonlinear damping device for the stay cable 40 comprises an inner ring 10, an outer ring 20 and a damping rope 30, wherein the inner ring 10 is used for sleeving the stay cable 40, the outer ring 20 is sleeved outside the inner ring 10, a gap is arranged between the outer ring 20 and the inner ring 10, the outer ring 20 is connected with the inner ring 10 through the damping rope 30, and the damping rope 30 is wound between the inner ring 10 and the outer ring 20 alternately. The outer ring 20 is fixed on the structure, the inner ring 10 is used for sleeving the inhaul cable 40, the outer ring 20 is supported outside the inner ring 10 through the damping rope 30, and when the inhaul cable 40 vibrates, the damping rope 30 plays a role in damping and vibration suppression. The damping rope 30 is an elongated object with damping effect, preferably a material with low cost, water resistance, aging resistance and corrosion resistance, and in this embodiment, a steel wire rope is used as the damping rope 30.
The inner ring 10 includes an inner fixing ring 11 and an inner pressure ring 12, the inner pressure ring 12 is mounted on the outer peripheral surface of the inner fixing ring 11, and the damper wire 30 is sandwiched between the inner pressure ring 12 and the inner fixing ring 11. The inner compression ring 12 and the inner fixing ring 11 are provided with corresponding holes, and the inner compression ring 12 is mounted on the inner fixing ring 11 through bolts or screws. The inner fixing ring 11 is used for sleeving the inhaul cable 40, the inner fixing ring 11 is arranged on the inhaul cable 40, then the damping rope 30 is clamped on the inner fixing ring 11 by the inner compression ring 12, and the assembly and the disassembly are simple and quick. Preferably, the inner pressure ring 12 is formed by splicing two or more inner pressure pieces 122, and is more convenient to install in the spiral damping rope 30.
As shown in fig. 3, the inner ring 10 includes at least two half rings 104, and the half rings 104 are spliced around to form the inner ring 10. The half rings 104 are provided with ear plates 101 and half ring connecting pieces 103, the ear plates 101 are provided with ear holes 102, the ear holes 102 of two adjacent half rings 104 correspond, and the half ring connecting pieces 103 penetrate through the two corresponding ear holes 102 to connect the two adjacent half rings 104. In the present embodiment, the end face of the half ring 104 is provided with the ear plate 101, but the present embodiment is not limited thereto, and the ear plate 101 may be provided at other positions. When the semi-ring 104 is installed, the semi-ring 104 is sleeved outside the inhaul cable 40, the lug plates 101 are aligned, the lug holes 102 are aligned, the semi-ring connecting piece 103 penetrates through the corresponding lug holes 102 to connect the two semi-rings 104, and the assembly and the disassembly are simple.
The outer ring 20 includes an outer fixing ring 21 and an outer pressing ring 22, the outer pressing ring 22 is mounted on an outer fixing inner circumferential surface, and the damper wire 30 is sandwiched between the outer pressing ring 22 and the outer fixing ring 21. The damping rope 30 is clamped on the outer fixing ring 21 by the outer compression ring 22, so that the assembly and disassembly are simple and quick. Preferably, the outer pressure ring 22 is formed by splicing more than two outer pressure sheets, and the installation in the spiral damping rope 30 is more convenient.
The outer peripheral surface of the inner fixing ring 11 is provided with a plurality of first grooves 111, the inner peripheral surface of the inner pressing ring 12 is provided with a plurality of corresponding second grooves 121, and the damping rope 30 is embedded in a pair of corresponding first grooves 111 and second grooves 121. The outer circumferential surface of the outer compression ring 22 is provided with a plurality of third grooves, the inner circumferential surface of the outer fixing ring 21 is provided with a plurality of corresponding fourth grooves, and the damping ropes 30 are embedded in a pair of corresponding third grooves and fourth grooves. The damping rope 30 is installed in the form of the groove, so that the damping rope 30 is prevented from being crushed, the installation area is increased, the friction force is increased, and the damping rope 30 is prevented from being shifted.
In order to obtain better vibration reduction and damping effects and more convenient installation, the utility model adopts the steel wire rope as the damping rope 30, the damping rope 30 is spirally wound between the inner ring 10 and the outer ring 20 alternately, the damping rope 30 has a stretched posture and good elasticity, the damping rope 30 is prevented from being damaged due to over sharp bending angles, and the inner pressure ring 12 and the outer pressure ring 22 are convenient to be inserted into the ring for installation. However, the present embodiment is not limited thereto, and other winding forms may be adopted to provide damping.
As shown in fig. 1, the inner ring 10, the damper wire 30, and the outer pressure ring 22 are accommodated in the outer fixing ring 21. The axial width of the outer fixing ring 21 is widest, and the inner ring 10, the damping rope 30, and the outer pressure ring 22 are all accommodated within the axial width of the outer fixing ring 21, and the outer fixing ring 21 provides a supporting space for each part without an additional supporting structure.
The first end of the outer fixing ring 21 is provided with a first flange 211, or the second end of the outer fixing ring 21 is provided with a second flange 212, the first flange 211 or the second flange 212 being for flange connection with the cable duct 50. In a general engineering structure, a cable guide 50 is conventionally provided, and a cable 40 is inserted into the cable guide 50. The damping device is embedded in the cable duct 50, a section of gap section is formed in the cable duct 50, the end faces of two ends of the gap section are respectively provided with a third flange 51 and a fourth flange 52, the damping device is clamped in the gap section, the first flange 211 is correspondingly installed with the third flange 51, and the second flange 212 and the fourth flange 52 are correspondingly installed.
The damping device of the utility model can be used singly or in combination. When a plurality of damping devices are used in series, the first flange and the second flange of adjacent two damping devices may be connected to each other.
The damping device has the beneficial effects that:
1. according to the damping device, the damping rope 30 supports the outer ring 20 outside the inner ring 10, so that a damping effect in multiple dimensions can be provided, the damping rope 30 is arranged on the stay cable 40 through the outer fixing ring 21 and bolts in a spiral structure, and swing of the stay cable 40 in multiple directions can be restrained.
When the stay cable 40 vibrates under wind and rain, or traffic load or other conditions, the damping rope 30 (steel wire rope) in the damping device of the present utility model is subjected to steel wire yielding and slippage, friction and backlog between strands and wires so as to consume energy and attenuate vibration to realize the vibration damping function.
2. The units such as the outer ring 20, the inner ring 10, the damping rope 30 (steel wire rope) and the like are relatively independent, can be freely detached through bolt connection, and are convenient to maintain and replace in the later period.
3. Compared with oily hydraulic dampers such as a traditional viscous damper, a viscous shear damper, a magnetorheological damper and the like, the damping device disclosed by the utility model has the advantage that the damping medium leakage problem caused by ageing of a sealing element is avoided.
4. Compared with high molecular and rubber material dampers such as viscoelastic dampers and rubber dampers, the damping device disclosed by the utility model has the advantage that the damping effect is reduced due to rubber aging.
5. The damping device has the advantages of simple processing of parts, convenient assembly, less installation influencing factors, convenient maintenance and replacement, no need of an external supporting structure and the like.
6. Preferably, the damping rope 30 of the damping device adopts a steel wire rope, is of an all-stainless steel metal structure, has good ageing resistance and corrosion resistance, strong environmental adaptability and long service life.
7. The damping device is in a circumferential installation mode, and consists of an inner ring 10, a damping rope 30 and an outer ring 20, wherein the outer ring 20 is used as a supporting structure, an external supporting frame is not required for installation, the integrity of the damping device in a cable guide pipe 50 arranged at the end part of a inhaul cable 40 is stronger, the influence on an external structure is small, and the damping device is attractive.
The utility model has been described in connection with the preferred embodiments, but the utility model is not limited to the embodiments disclosed above, but it is intended to cover various modifications, equivalent combinations according to the essence of the utility model.
Claims (10)
1. The novel nonlinear damping device for the stay cable is characterized by comprising an inner ring, an outer ring and a damping rope, wherein the inner ring is used for penetrating through the stay cable, the outer ring is sleeved outside the inner ring, a gap is arranged between the outer ring and the inner ring, the outer ring is connected with the inner ring through the damping rope, and the damping rope is wound between the inner ring and the outer ring alternately.
2. The novel nonlinear damping device for the stay cable according to claim 1, wherein the inner ring comprises an inner fixing ring and an inner pressing ring, the inner pressing ring is mounted on the outer peripheral surface of the inner fixing ring, and the damping rope is clamped between the inner pressing ring and the inner fixing ring.
3. The novel stay cable nonlinear damping device according to claim 2, wherein the inner ring comprises at least two semi-rings, and the semi-rings are spliced into the inner ring.
4. The novel nonlinear damping device for stay cables according to claim 3, wherein the semi-rings are provided with lugs and semi-ring connectors, the lugs are provided with lugs, the lugs of two adjacent semi-rings correspond to each other, and the semi-ring connectors penetrate through the two corresponding lugs to connect the two adjacent semi-rings.
5. The novel nonlinear damping device for the stay cable according to claim 2, wherein a plurality of first grooves are formed in the outer peripheral surface of the inner fixing ring, a plurality of corresponding second grooves are formed in the inner peripheral surface of the inner pressing ring, and the damping rope is embedded in a pair of corresponding first grooves and second grooves.
6. The novel nonlinear damping device for a stay cable according to claim 1, wherein the outer ring comprises an outer fixing ring and an outer pressing ring, the outer pressing ring is mounted on the inner peripheral surface of the outer fixing ring, and the damping rope is clamped between the outer pressing ring and the outer fixing ring.
7. The novel stay cable nonlinear damping device according to claim 6, wherein a first end of the outer fixing ring is provided with a first flange, or a second end of the outer fixing ring is provided with a second flange, and the first flange or the second flange is used for being connected with a flange of a cable guide.
8. The novel stay cable nonlinear damping device according to claim 6, wherein a plurality of third grooves are formed in the outer peripheral surface of the outer compression ring, a plurality of corresponding fourth grooves are formed in the inner peripheral surface of the outer fixing ring, and the damping ropes are embedded in a pair of corresponding third grooves and fourth grooves.
9. The novel stay cable nonlinear damping device according to claim 6, wherein the inner ring, the damping rope and the outer pressure ring are accommodated in the outer fixing ring.
10. A novel nonlinear damping device for a stay cable according to any one of claims 1-9, wherein the damping rope is spirally wound between the inner ring and the outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420286243.5U CN222435065U (en) | 2024-02-06 | 2024-02-06 | Novel nonlinear damping device for stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420286243.5U CN222435065U (en) | 2024-02-06 | 2024-02-06 | Novel nonlinear damping device for stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222435065U true CN222435065U (en) | 2025-02-07 |
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ID=94397948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420286243.5U Active CN222435065U (en) | 2024-02-06 | 2024-02-06 | Novel nonlinear damping device for stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222435065U (en) |
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2024
- 2024-02-06 CN CN202420286243.5U patent/CN222435065U/en active Active
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