CN111501550A - Damper structure for bridge stay cable - Google Patents
Damper structure for bridge stay cable Download PDFInfo
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- CN111501550A CN111501550A CN201910099120.4A CN201910099120A CN111501550A CN 111501550 A CN111501550 A CN 111501550A CN 201910099120 A CN201910099120 A CN 201910099120A CN 111501550 A CN111501550 A CN 111501550A
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- ring
- stay cable
- half ring
- hinged
- right half
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/06—Arrangement, construction or bridging of expansion joints
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- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of civil engineering, in particular to a damper structure for a bridge stay cable, wherein an outer ring is formed by connecting an outer right half ring with an outer left half ring through an outer screw, an inner ring is formed by connecting an inner right half ring with an inner left half ring through an inner screw, and the outer ring and the inner ring are connected through a damping buffer and a damping spring, so that the vibration of the stay cable fixed at the center of the inner ring in a vibration environment is decomposed, released, converted and absorbed under the action of the damping buffer and the damping spring to achieve the effect of reducing the vibration.
Description
Technical Field
The invention relates to the technical field of civil engineering, in particular to a damper structure for a bridge stay cable.
Background
Along with the continuous development and progress of bridge technology, the types of bridges are also diversified continuously, in order to ensure that the bridge construction technology in China can be carried out safely and effectively, new high requirements are continuously provided for the construction technology, technicians of bridge construction must continuously master the structural strength of the bridges in construction, the stability coefficient of the bridges is accurately calculated, meanwhile, the bridges are also very important for the maintenance and supervision of the bridges after being built, because the bridges after being built are applied to the bridge in practice and have many problems, the aging of materials and the interference of external environment factors, the damage to a certain extent in the use process and the like, and therefore the design and construction of the bridges are required to be limited by years.
In the process of bridge laying and building, due to the fact that geographical environments of various places are special and complex, bridge designs of different styles are designed to be applied to different environments, and one of the design is often seen as follows: the middle of the bridge deck is provided with a large column, and the two ends of the column are respectively pulled and dragged by a guy cable. The bridge is in a triangular shape like a Chinese character 'shan' shape in the past, and the guy cable like a thin rope plays an extremely important stress role, so that one link is an important maintenance process for protecting the guy cable after the bridge is built, and the tightness adjustment of the lower end of the guy cable is realized, and the like, namely, a protective shell for protecting rainwater from weathering is added on the outer wall of the guy cable.
At present, a protection measure for stay cable vibration rarely or even does not exist in the prior art, namely the stay cable vibrates under the conditions of wind and rain, external stress and the like, the vibration can generate adverse effects on a tightening structure, a connecting part and the like of the stay cable after a long time, and the whole structure of a bridge can be influenced to generate displacement deformation.
The damper structure for the bridge stay cable is characterized in that openings are respectively arranged at the edges of the outer ring and the inner ring, so that the stay cable can smoothly enter the center of the inner ring, and under the connecting action of the damping buffer and the damping spring, the stay cable fixed at the center of the inner ring vibrates under the vibrating environment, and the vibration is reduced after the stay cable is decomposed, released, converted and absorbed under the action of the damping buffer and the damping spring.
Disclosure of Invention
The utility model provides a attenuator structure for bridge suspension cable which characterized in that: the damping device comprises an outer ring and an inner ring which is arranged in the outer ring and is concentric, wherein the outer ring is connected with the inner ring through a plurality of damping buffers and springs;
the outer ring is an outer right half ring connected with an outer left half ring through at least one group of outer screws, and the outer ring is
The screws are distributed along the circumference of the outer ring;
the inner ring is an inner right half ring connected with an inner left half ring through at least one group of inner screws, and the inner half ring
The screws are distributed along the circumference of the inner ring;
one end of the damping buffer is hinged with the outer ring through an upper rotating shaft, and the other end of the damping buffer is hinged with the inner ring through a lower rotating shaft;
one end of the spring is hinged with the outer ring through a rear rotating shaft, and the other end of the spring is hinged with the inner ring through a front rotating shaft;
a rubber ring for clamping and stabilizing the stay cable is arranged in the central hole of the inner ring;
one side of the outer right semi-ring is provided with an opening, one side of the outer left semi-ring is provided with a threaded hole, and the outer screw penetrates through the opening and is in threaded connection with the threaded hole;
one side of the inner right semi-ring is provided with a through hole, one side of the inner left semi-ring is provided with a threaded connecting hole, and the inner screw penetrates through the through hole and is connected into the threaded connecting hole through threads;
the central hole of the inner ring is fixedly connected with the rubber ring;
the section of the rubber ring is in a wave-shaped design and is made of soft materials such as rubber;
the outer ring is arranged in the connection between the outer right half ring and the outer left half ring through an outer screw, and one group of the outer ring is hinged;
the inner ring is connected with the inner left half ring through an inner screw in the inner right half ring, and one group of the inner ring is hinged;
the invention has the beneficial effects that: the outer ring is connected with the outer left half ring through the outer screw on the outer right half ring, the inner ring is connected with the inner left half ring through the inner screw on the inner right half ring, the outer ring and the inner ring are connected through the damping buffer and the damping spring, so that the stay cable fixed at the center of the inner ring vibrates in the vibrating environment, the stay cable is decomposed, released and converted under the action of the damping buffer and the damping spring to achieve the effect of reducing vibration, the whole stay cable achieves the effects of quick installation and quick disassembly, and the vibration of the stay cable of the bridge is well reduced.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall cross-sectional structure of the present invention.
Fig. 2 is a partially enlarged structural diagram of the inner ring of the present invention.
In the figure: 1. an outer right half ring; 2. an upper rotating shaft; 3. a damping buffer; 4. a lower rotating shaft; 5. an inner right half ring; 6. a rear rotating shaft; 7. a spring; 8. a front rotating shaft; 9. a rubber ring; 10. an inner left half ring; 11. an outer left half ring; 12. inner screws; 13. an outer screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
According to the illustration of FIG. 1: a damper structure for a bridge stay cable comprises an outer ring and an inner ring which is arranged in the outer ring and is concentric, wherein the outer ring is connected with the inner ring through a plurality of damping buffers 3 and springs 7, the outer ring is formed by connecting an outer right half ring 1 with an outer left half ring 11 through at least one group of outer screws 13, the outer screws 13 are distributed along the circumference of the outer ring, the inner ring is formed by connecting an inner right half ring 5 with an inner left half ring 10 through at least one group of inner screws 12, the inner screws 12 are distributed along the circumference of the inner ring, one end of each damping buffer 3 is hinged with the outer ring through an upper rotating shaft 2, the other end of each damping buffer is hinged with the inner ring through a lower rotating shaft 4, one end of each spring 7 is hinged with the outer ring through a rear rotating shaft 6, the other end of each spring is hinged with the inner ring through a front rotating shaft 8, a rubber ring 9 for holding and stabilizing the, an outer screw 13 penetrates through the opening and is in threaded connection with the threaded hole, a through hole is formed in one side of the inner right half ring 5, a threaded connection hole is formed in one side of the inner left half ring 10, and an inner screw 12 penetrates through the through hole and is in threaded connection with the threaded connection hole through threads.
Example (b): when the invention is used simply, firstly the outer screw 13 and the inner screw 12 are unscrewed, then the outer ring and the inner ring can be respectively divided into two halves, the outer ring and the inner ring which are divided into two halves are simultaneously taken onto the inhaul cable, the inhaul cable is arranged at the center part of the circular hole in the inner ring, the outer screw 13 and the inner screw 12 can be respectively tightened, the rubber ring 9 arranged in the center hole of the inner ring can be tightly contacted with the inhaul cable, and the rubber ring 9 and the zipper can be well ensured to have a tight anti-skid effect through the wave-shaped design of the rubber ring 9,
when the invention needs to be maintained or disassembled, the outer screw 13 and the inner screw 12 are directly loosened, the inner ring and the outer ring are directly separated respectively, and the invention can be disassembled after the inhaul cable is directly removed.
The whole inner ring and the outer ring are hinged through the damping buffers 3 and the springs 5, namely, the inner ring and the outer ring are in a state of relative motion, when the cable has certain vibration, the vibration of the inner ring is driven, the vibration generated by the inner ring can be transmitted to the outer ring through the damping buffers 3 and the springs 5, because the outer ring is a circular ring block with heavier weight in design and processing, the vibration generated by the inner ring can pass through the damping buffers 3 and the acting force of the springs 5, the force generated by the vibration is effectively decomposed, converted and absorbed under the acting force of the outer ring, the vibration generated by the inner ring is reduced at the moment, the vibration of the cable is reduced, and the damage of the whole bridge caused by the vibration of the cable can be effectively avoided after the vibration of the cable is reduced.
The damping buffer 3 of the present invention is a mature commercial product, such as a series of buffers manufactured by the company nippon and betweeen, which is a substitute of fodtie kowski (shanghai) trade limited company, wherein the damping buffer of the type FK-2016L is a buffer process in which the cylinder shaft is forced to move relatively to the cylinder barrel under the external force based on a hydraulic buffer principle.
Therefore, the outer ring of the outer right half ring is connected with the outer left half ring through the outer screw, the inner ring of the inner right half ring is connected with the inner left half ring through the inner screw, and under the connecting action of the outer ring and the inner ring through the damping buffer and the damping spring, the vibration generated by the stay cable fixed at the center of the inner ring in the vibration environment is decomposed, released, converted and absorbed under the action of the damping buffer and the damping spring to achieve the effect of reducing the vibration.
Claims (7)
1. The utility model provides a attenuator structure for bridge suspension cable which characterized in that: the damping device comprises an outer ring and an inner ring which is arranged in the outer ring and is concentric, wherein the outer ring is connected with the inner ring through a plurality of damping buffers (3) and springs (7);
the outer ring is characterized in that the outer right half ring (1) is connected with the outer left half ring (11) through at least one group of outer screws (13), and the outer screws (13) are distributed along the circumference of the outer ring;
the inner ring is characterized in that the inner right half ring (5) is connected with the inner left half ring (10) through at least one group of inner screws (12), and the inner screws (12) are distributed along the circumference of the inner ring;
one end of the damping buffer (3) is hinged with the outer ring through an upper rotating shaft (2), and the other end of the damping buffer is hinged with the inner ring through a lower rotating shaft (4);
one end of the spring (7) is hinged with the outer ring through a rear rotating shaft (6), and the other end of the spring is hinged with the inner ring through a front rotating shaft (8);
and a rubber ring (9) used for clamping and stabilizing the stay cable is arranged in the central hole of the inner ring.
2. The damper structure for a stay cable of a bridge according to claim 1, wherein: an opening is formed in one side of the outer right half ring (1), a threaded hole is formed in one side of the outer left half ring (11), and the outer screw (13) penetrates through the opening and is in threaded connection with the threaded hole.
3. The damper structure for a stay cable of a bridge according to claim 1, wherein: one side of the inner right half ring (5) is provided with a through hole, one side of the inner left half ring (10) is provided with a threaded connecting hole, and the inner screw (12) penetrates through the through hole and is connected into the threaded connecting hole through threads.
4. The damper structure for a stay cable of a bridge according to claim 1, wherein: the central hole of the inner ring is fixedly connected with the rubber ring (9).
5. The damper structure for a stay cable of a bridge according to claim 1, wherein: the cross section of the rubber ring (9) is in a wave-shaped design and is made of soft materials such as rubber.
6. The damper structure for a stay cable of a bridge according to claim 1, wherein: the outer ring is arranged in the connection of the outer right half ring (1) and the outer left half ring (11) through an outer bolt (13), and one group of the outer rings is hinged.
7. The damper structure for a stay cable of a bridge according to claim 1, wherein: the inner ring is connected with the inner left half ring (10) through an inner screw (12) in the inner right half ring (5), and one group of the inner ring is hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099120.4A CN111501550A (en) | 2019-01-31 | 2019-01-31 | Damper structure for bridge stay cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910099120.4A CN111501550A (en) | 2019-01-31 | 2019-01-31 | Damper structure for bridge stay cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111501550A true CN111501550A (en) | 2020-08-07 |
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ID=71870849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910099120.4A Pending CN111501550A (en) | 2019-01-31 | 2019-01-31 | Damper structure for bridge stay cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111501550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695609A (en) * | 2020-12-18 | 2021-04-23 | 中铁大桥局集团有限公司 | Multi-directional multi-tuning mass damper for cable structure vibration reduction |
| CN114687279A (en) * | 2022-04-01 | 2022-07-01 | 浙江工业大学 | Viaduct vibration reduction system based on annular TMD |
| CN115163729A (en) * | 2022-07-13 | 2022-10-11 | 重庆大学 | Circumferential array type inhaul cable vibration energy dissipation ring based on acoustic black hole beam |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154010A (en) * | 1966-11-29 | 1969-06-04 | Kawada Kogyo Kk | Centre Diagonal Stays for use in Suspension Bridges |
| CN102052518A (en) * | 2011-01-28 | 2011-05-11 | 浙江大学 | Tuned mass damper structure for reducing pipeline vibration |
| CN103233529A (en) * | 2013-05-21 | 2013-08-07 | 上海大学 | Three-dimensional tuned mass damper device with clamping groove |
| CN103590320A (en) * | 2013-11-25 | 2014-02-19 | 大连海事大学 | Stay cable vibration damper of cable-stayed bridge |
| CN208443513U (en) * | 2018-07-25 | 2019-01-29 | 上海同济检测技术有限公司 | Bridge cable detection sensor mounting device |
| CN109494672A (en) * | 2018-11-26 | 2019-03-19 | 国网河南省电力公司新野县供电公司 | A kind of buried cable safety guard |
| CN210049100U (en) * | 2019-01-31 | 2020-02-11 | 中交二公局第一工程有限公司 | Damper structure for bridge stay cable |
-
2019
- 2019-01-31 CN CN201910099120.4A patent/CN111501550A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1154010A (en) * | 1966-11-29 | 1969-06-04 | Kawada Kogyo Kk | Centre Diagonal Stays for use in Suspension Bridges |
| CN102052518A (en) * | 2011-01-28 | 2011-05-11 | 浙江大学 | Tuned mass damper structure for reducing pipeline vibration |
| CN103233529A (en) * | 2013-05-21 | 2013-08-07 | 上海大学 | Three-dimensional tuned mass damper device with clamping groove |
| CN103590320A (en) * | 2013-11-25 | 2014-02-19 | 大连海事大学 | Stay cable vibration damper of cable-stayed bridge |
| CN208443513U (en) * | 2018-07-25 | 2019-01-29 | 上海同济检测技术有限公司 | Bridge cable detection sensor mounting device |
| CN109494672A (en) * | 2018-11-26 | 2019-03-19 | 国网河南省电力公司新野县供电公司 | A kind of buried cable safety guard |
| CN210049100U (en) * | 2019-01-31 | 2020-02-11 | 中交二公局第一工程有限公司 | Damper structure for bridge stay cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695609A (en) * | 2020-12-18 | 2021-04-23 | 中铁大桥局集团有限公司 | Multi-directional multi-tuning mass damper for cable structure vibration reduction |
| CN114687279A (en) * | 2022-04-01 | 2022-07-01 | 浙江工业大学 | Viaduct vibration reduction system based on annular TMD |
| CN115163729A (en) * | 2022-07-13 | 2022-10-11 | 重庆大学 | Circumferential array type inhaul cable vibration energy dissipation ring based on acoustic black hole beam |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210916 Address after: Room 1-9, 22 / F, building B, science and technology complex building, 145 Hong Kong Road, Jiang'an District, Wuhan City, Hubei Province, 430015 Applicant after: CCCC-SHB FIRST ENGINEERING Co.,Ltd. Applicant after: CCCC SECOND HIGHWAY ENGINEERING Co.,Ltd. Applicant after: CCCC HIGHWAY BRIDGES NATIONAL ENGINEERING RESEARCH CENTER Co.,Ltd. Address before: Room 1-9, 22 / F, building B, science and technology complex building, 145 Hong Kong Road, Jiang'an District, Wuhan City, Hubei Province, 430015 Applicant before: CCCC-SHB FIRST ENGINEERING Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200807 |