CN113175495B - Stay cable damping device and installation method - Google Patents
Stay cable damping device and installation method Download PDFInfo
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- CN113175495B CN113175495B CN202110445881.8A CN202110445881A CN113175495B CN 113175495 B CN113175495 B CN 113175495B CN 202110445881 A CN202110445881 A CN 202110445881A CN 113175495 B CN113175495 B CN 113175495B
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- fixing
- hinged
- inner shell
- buffer
- fixing plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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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
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/022—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using dampers and springs in combination
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a stay cable damping device and an installation method, and belongs to the technical field of bridge engineering. This suspension cable damping device includes: the damping device comprises a fixed sleeve and a damping seat; the fixing sleeve includes: first inner shell and second inner shell, stay cable are connected between first inner shell and second inner shell, and the upper and lower both ends of first inner shell and second inner shell all are provided with the connecting plate, and the lateral wall of first inner shell has first shell through a plurality of first damping spring connection, and the lateral wall of second inner shell has the second shell through a plurality of first damping spring connection. When the vibration force is generated due to the influence of wind power and the like, the vibration capacity is buffered and absorbed by the first damping springs, the two damping seats are provided for fixing the stay cable, the working stability is ensured, the safety of the bridge can be better ensured, the vibration of the bridge deck can be absorbed, the first damping dampers are more stable, the vibration of the stay cable is absorbed by the first damping dampers, and the vibration absorption and buffering capacity of the stay cable is improved.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a stay cable damping device and an installation method.
Background
A cable-stayed bridge is also called a diagonal tension bridge, which is a bridge with a main beam directly pulled on a bridge tower by a plurality of stay cables, and is a structural system formed by combining a pressure-bearing tower, a pulled cable and a bent beam body, wherein the stay cables can be regarded as a multi-span elastic support continuous beam replacing buttresses, the multi-span elastic support continuous beam can reduce the bending moment in the beam body, reduce the building height, lighten the structural weight and save materials.
The existing buffer device is only provided with a group of buffer dampers, and the buffer dampers are easy to lose effect due to the influence of fatigue strength in use, so that the buffer effect cannot be well played.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a stay cable damping device and an installation method.
In one aspect, a stay cable damping device is provided, including: the damping device comprises a fixed sleeve and a damping seat; the fixing sleeve includes: the outer side wall of the second inner shell is connected with a second outer shell through a plurality of first damping springs, and the outer side walls of the first outer shell and the second outer shell are provided with first fixing blocks; the cushion socket is two, sets up on the bridge floor of fixed sleeve both sides, the cushion socket includes: the damping device comprises a first fixing plate, a second damping spring and a second fixing block; the first fixing plate is connected on the bridge floor, the second damping spring is connected on the first fixing plate, the second fixing block is connected on the second damping spring, and a first buffer damper is hinged between the second fixing block and the first fixing block.
Furthermore, the bridge floor on both sides of the first fixing plate is connected with a third fixing block, both sides of the second fixing block are connected with a fourth fixing block, and a buffer rod is hinged between the corresponding third fixing block and the fourth fixing block.
Further, the buffer rod includes: a first connecting rod and a second connecting rod; the first connecting rod is hollow and internally provided with a third damping spring, one end of the first connecting rod is hinged to the third fixing block, one end of the second connecting rod is hinged to the fourth fixing block, and the other end of the second connecting rod enters the other end of the first connecting rod and is connected with the third damping spring.
Further, the stay cable shock-absorbing device further comprises: a supporting seat; the supporting seat includes: the bridge deck comprises a first fixing plate, a second fixing plate, a third fixing plate and two third connecting rods, wherein one end of each third connecting rod corresponds to the bottom of the first shell and the bottom of the second shell, the other end of each third connecting rod is connected with the second fixing plate, a fifth fixing block is arranged at the bottom of the second fixing plate, a second buffer damper is hinged to the fifth fixing block, the other end of the second buffer damper is hinged to the third fixing plate, and the third fixing plate is connected to the bridge deck.
Furthermore, the number of the second buffer dampers is two.
Furthermore, two anti-skid grooves are formed in the third fixing plate, and the second buffer damper is correspondingly hinged in the anti-skid grooves.
In another aspect, a stay cable damping device installation method is provided, including: the first inner shell and the second inner shell are sleeved on the stay cable, the connecting plate is fixed through a bolt,
the first fixing plates of the corresponding shock absorption seats are fixed on the bridge floor through screws on the bridge floor below the two sides of the stay cable respectively;
one end of a first buffer damper is hinged with a first fixed block of a first shell, and the other end of the first buffer damper is hinged with a corresponding second fixed block;
one end of the other first buffer damper is hinged with the first fixed block of the second shell, and the other end of the first buffer damper is hinged with the corresponding second fixed block;
the bridge deck on both sides of the first fixed plate is connected with a third fixed block, both sides of the second fixed block are connected with a fourth fixed block, one end of a buffer rod is hinged on the third fixed block, and the other end of the buffer rod is hinged on the fourth fixed block;
and fixing a third fixing plate on the bridge floor right below the stay cable, correspondingly hinging one ends of the two second buffer dampers with the two anti-skidding grooves on the third fixing plate, and hinging the other ends of the second buffer dampers with a fifth fixing block.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the fixed sleeve and the shock absorption seats are arranged in the suspension cable, when the vibration force is generated due to the influence of wind power, atmosphere and the like, the first shock absorption springs buffer and absorb the vibration capacity, the two shock absorption seats can fix the suspension cable through the shock absorption seats, the working stability is guaranteed, and the bridge deck vibration can be absorbed, so that the first buffer damper is more stable, the service life of the first buffer damper is prolonged, the first buffer damper absorbs the vibration of the suspension cable, and the vibration absorption and buffering capacity of the suspension cable is improved. In addition, the supporting seat is arranged on the bridge floor right below the stay cable, on one hand, the stay cable can be supported through the supporting seat, the working stability of the stay cable is guaranteed, and on the other hand, the second buffer dampers below the stay cable can effectively inhibit the vibration of the stay cable at multiple angles in multiple directions by combining the shock absorption seats on two sides.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be 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 to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural view of a stay cable damping device according to an embodiment of the present invention;
FIG. 2 is a schematic view of a second cushion damper according to the present invention connected to a third fixing plate;
fig. 3 is a schematic diagram of a third fixing plate structure provided in the present invention.
Reference numerals are as follows: 1-a first inner shell; 2-a second inner shell; 3-stay cable; 4-connecting plates; 5-a first damping spring; 6-a first housing; 7-a second housing; 8-a first fixed block; 9-a first fixing plate; 10-a second damping spring; 11-a second fixed block; 12-a first cushion damper; 13-a third fixed block; 14-a fourth fixed block; 15-a first connecting rod; 16-a second connecting rod; 17-a third damping spring; 18-a second fixation plate; 19-a third fixing plate; 20-a third connecting rod; 21-a fifth fixed block; 22-a second cushion damper; 23-an anti-slip groove; 24-a bolt; 25-screws.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper", "lower", "left", "right" and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Referring to fig. 1 to 3, the stay cable damper includes: the damping device comprises a fixed sleeve and a damping seat; the fixing sleeve includes: the outer side wall of the first inner shell 1 is connected with a first outer shell 6 through a plurality of first damping springs 5, the outer side wall of the second inner shell 2 is connected with a second outer shell 7 through a plurality of first damping springs 5, and the outer side walls of the first outer shell 6 and the second outer shell 7 are provided with first fixing blocks 8; the shock mount is two, sets up on the bridge floor of fixed sleeve both sides, and the shock mount includes: the damping device comprises a first fixing plate 9, a second damping spring 10 and a second fixing block 11; first fixed plate 9 is connected on the bridge floor, and second damping spring 10 is connected on first fixed plate 9, and second fixed block 11 is connected on second damping spring 10, and it has first buffer damper 12 to articulate between second fixed block 11 and the first fixed block 8.
It should be noted that, in the present invention, a fixing sleeve and two shock absorbing seats are provided, when an exciting force is generated due to the influence of wind power, atmosphere, etc., firstly, the vibration capability is buffered and absorbed by a plurality of first shock absorbing springs 5 between the first inner shell 1 and the second inner shell 2 and the first outer shell 6 and the second outer shell 7, the two shock absorbing seats are provided on the bridge deck at both sides of the fixing sleeve, the vibration generated on the bridge deck can be buffered and absorbed by the second shock absorbing springs 10 on the shock absorbing seats, a first buffer damper 12 is connected between the fixing sleeve and the shock absorbing seats, on one hand, the stay cable can be fixed by the shock absorbing seats, so as to ensure the working stability, on the other hand, the bridge deck vibration is absorbed, and the vibration of the stay cable is absorbed by the first buffer damper 12, so that the vibration absorbing and buffering capability of the stay cable is improved.
Furthermore, the bridge deck on both sides of the first fixing plate 9 is connected with a third fixing block 13, both sides of the second fixing block 11 are connected with a fourth fixing block 14, and a buffer rod is hinged between the corresponding third fixing block 13 and the fourth fixing block 14. Can further absorb the bridge floor through the buffer beam and produce vibrations, strengthen the shock-absorbing capacity of cushion socket to further reduce suspension cable vibrations.
Further, the buffer rod includes: a first connecting rod 15 and a second connecting rod 16; the first connecting rod 15 is hollow and is provided with a third damping spring 17, one end of the first connecting rod 15 is hinged to the third fixing block 13, one end of the second connecting rod 16 is hinged to the fourth fixing block 14, and the other end of the second connecting rod 16 enters the other end of the first connecting rod 15 and is connected with the third damping spring 17.
Further, this suspension cable damping device still includes: a supporting seat; the supporting seat includes: the bridge deck comprises a second fixing plate 18, a third fixing plate 19 and two third connecting rods 20, one ends of the two third connecting rods 20 are correspondingly connected with the bottoms of the first shell 6 and the second shell 7, the other ends of the third connecting rods 20 are connected with the second fixing plate 18, a fifth fixing block 21 is arranged at the bottom of the second fixing plate 18, a second buffer damper 22 is hinged to the fifth fixing block 21, the other end of the second buffer damper 22 is hinged to the third fixing plate 19, and the third fixing plate 19 is connected to the bridge deck.
It should be noted that, the supporting seat is arranged on the bridge floor under the stay cable, on one hand, the stay cable can be supported through the supporting seat, the working stability is guaranteed, and the bridge safety can be better guaranteed, and on the other hand, the second buffer damper 22 below is combined with the shock absorbing seats on two sides, so that the effective inhibiting effect can be achieved on the vibration of the stay cable at multiple angles in multiple directions.
Further, the number of the second cushion dampers 22 is two. Two second buffer dampers 22 are obliquely arranged in front of and behind the stay cables to reinforce the stability of the stay cables and reduce vibration.
Furthermore, two anti-skid grooves 23 are formed on the third fixing plate 19, and the second cushion damper 22 is correspondingly hinged in the anti-skid grooves 23. So that the second cushion damper 22 can be prevented from slipping.
The method for installing the stay cable damping device provided by the invention can be as follows:
step (1): the first inner shell 1 and the second inner shell 2 are sleeved on the stay cable 3, and the connecting plate 4 is fixed through the bolt 24.
Step (2): the first fixing plates 9 of the corresponding shock absorption seats are fixed on the bridge floor through screws 25 respectively on the bridge floor below the two sides of the stay cable 3.
And (3): one end of a first buffer damper 12 is hinged with the first fixed block 8 of the first shell 6, and the other end of the first buffer damper 12 is hinged with the corresponding second fixed block 11; one end of another first cushion damper 12 is hinged to the first fixing block 8 of the second housing 7, and the other end of the first cushion damper 12 is hinged to the corresponding second fixing block 11.
And (4): the bridge deck on the two sides of the first fixing plate 9 is connected with a third fixing block 13, the two sides of the second fixing block 11 are connected with a fourth fixing block 14, one end of a buffer rod is hinged to the third fixing block 13, and the other end of the buffer rod is hinged to the fourth fixing block 14.
And (5): and fixing the third fixing plate 19 on the bridge floor right below the stay cable, correspondingly hinging one ends of the two second buffer dampers 22 with the two anti-skidding grooves 23 on the third fixing plate 19, and hinging the other ends of the second buffer dampers 22 with the fifth fixing block 21.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. A suspension cable damping device, comprising: the damping device comprises a fixed sleeve, a damping seat and a supporting seat;
the fixing sleeve includes: the cable comprises a first inner shell (1) and a second inner shell (2), a stay cable (3) is connected between the first inner shell (1) and the second inner shell (2), connecting plates (4) are arranged at the upper end and the lower end of the first inner shell (1) and the second inner shell (2), the outer side wall of the first inner shell (1) is connected with a first outer shell (6) through a plurality of first damping springs (5), the outer side wall of the second inner shell (2) is connected with a second outer shell (7) through a plurality of first damping springs (5), and first fixing blocks (8) are arranged on the outer side walls of the first outer shell (6) and the second outer shell (7);
the cushion socket is two, sets up on the bridge floor of fixed sleeve both sides, the cushion socket includes: the damping device comprises a first fixing plate (9), a second damping spring (10) and a second fixing block (11); the first fixing plate (9) is connected to the bridge floor, the second damping spring (10) is connected to the first fixing plate (9), the second fixing block (11) is connected to the second damping spring (10), and a first buffer damper (12) is hinged between the second fixing block (11) and the first fixing block (8);
the bridge deck on both sides of the first fixing plate (9) is connected with third fixing blocks (13), both sides of the second fixing blocks (11) are connected with fourth fixing blocks (14), and buffer rods are hinged between the corresponding third fixing blocks (13) and the fourth fixing blocks (14);
the buffer rod includes: a first connecting rod (15) and a second connecting rod (16); the interior of the first connecting rod (15) is hollow, a third damping spring (17) is arranged in the interior of the first connecting rod, one end of the first connecting rod (15) is hinged to the third fixing block (13), one end of the second connecting rod (16) is hinged to the fourth fixing block (14), and the other end of the second connecting rod (16) enters the other end of the first connecting rod (15) and is connected with the third damping spring (17);
the supporting seat includes: the bridge deck comprises a second fixing plate (18), a third fixing plate (19) and two third connecting rods (20), wherein one ends of the two third connecting rods (20) are correspondingly connected with the bottoms of the first shell (6) and the second shell (7), the other ends of the third connecting rods (20) are connected with the second fixing plate (18), a fifth fixing block (21) is arranged at the bottom of the second fixing plate (18), a second buffer damper (22) is hinged to the fifth fixing block (21), the other end of the second buffer damper (22) is hinged to the third fixing plate (19), and the third fixing plate (19) is connected to the bridge deck;
the supporting seat is located under the fixed sleeve, and the shock absorption seats are located on two sides of the supporting seat respectively.
2. A stay cable shock absorbing device as claimed in claim 1, wherein the number of said second buffering dampers (22) is two.
3. A stay cable shock absorber according to claim 2, wherein the third fixing plate (19) is provided with two anti-slip grooves (23), and the second buffering damper (22) is correspondingly hinged in the anti-slip grooves (23).
4. A method for installing a suspension cable damper as claimed in claim 3, comprising:
the first inner shell (1) and the second inner shell (2) are sleeved on the stay cable (3), the connecting plate (4) is fixed through a bolt (24),
the first fixing plates (9) of the corresponding shock absorption seats are fixed on the bridge floor through screws (25) on the bridge floor below the two sides of the stay cable (3);
one end of a first buffer damper (12) is hinged with a first fixed block (8) of a first shell (6), and the other end of the first buffer damper (12) is hinged with a corresponding second fixed block (11);
one end of the other first buffer damper (12) is hinged with the first fixed block (8) of the second shell (7), and the other end of the first buffer damper (12) is hinged with the corresponding second fixed block (11);
the bridge deck on two sides of the first fixing plate (9) is connected with third fixing blocks (13), two sides of the second fixing blocks (11) are connected with fourth fixing blocks (14), one end of a buffer rod is hinged to the third fixing blocks (13), and the other end of the buffer rod is hinged to the fourth fixing blocks (14);
and fixing a third fixing plate (19) on the bridge floor right below the stay cable, correspondingly hinging one ends of two second buffer dampers (22) with two anti-skidding grooves (23) on the third fixing plate (19), and hinging the other ends of the second buffer dampers (22) with a fifth fixing block (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445881.8A CN113175495B (en) | 2021-04-25 | 2021-04-25 | Stay cable damping device and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110445881.8A CN113175495B (en) | 2021-04-25 | 2021-04-25 | Stay cable damping device and installation method |
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| Publication Number | Publication Date |
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| CN113175495A CN113175495A (en) | 2021-07-27 |
| CN113175495B true CN113175495B (en) | 2023-01-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110445881.8A Active CN113175495B (en) | 2021-04-25 | 2021-04-25 | Stay cable damping device and installation method |
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| CN (1) | CN113175495B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737648A (en) * | 2021-08-19 | 2021-12-03 | 中铁十六局集团第五工程有限公司 | Bridge suspension cable shock-absorbing structure |
| CN114513105B (en) * | 2022-03-16 | 2023-08-22 | 郑州大学 | Vibration reduction power generation device for stayed cable of cable-stayed bridge |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3127191B2 (en) * | 1994-11-10 | 2001-01-22 | 首都高速道路公団 | Cable damping device |
| JP3052992B2 (en) * | 1995-08-28 | 2000-06-19 | カヤバ工業株式会社 | Cable-stayed bridge anti-vibration structure |
| JP2004169515A (en) * | 2002-11-22 | 2004-06-17 | Sumitomo Rubber Ind Ltd | Cable damper |
| FR2862073B1 (en) * | 2003-11-12 | 2007-11-23 | Freyssinet Int Stup | DEVICE FOR DAMPING THE VIBRATION OF A HAUBANS TAB OF A CONSTRUCTION WORK AND METHOD OF DAMPING THE SAME |
| FR3033803B1 (en) * | 2015-03-16 | 2021-01-29 | Soletanche Freyssinet | CABLE VIBRATION DAMPING DEVICE |
| CN206054921U (en) * | 2016-08-26 | 2017-03-29 | 江苏奇佩建筑装配科技有限公司 | Antidetonation suspension and support |
| CN207073637U (en) * | 2017-08-24 | 2018-03-06 | 安徽宝立华机械设备有限公司 | A kind of stable component of pipeline |
| CN207621493U (en) * | 2017-10-31 | 2018-07-17 | 曾国琼 | A kind of plumbing installation of antidetonation |
| CN208467130U (en) * | 2018-06-13 | 2019-02-05 | 广东南利科技有限公司 | A kind of coiling machine side CNC line shunting device |
| CN211550755U (en) * | 2019-12-17 | 2020-09-22 | 江苏圣大中远电力科技有限公司 | Sliding type anti-seismic support and hanger |
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