CN109371814A - A kind of suspension cable shearing-type internal damper - Google Patents
A kind of suspension cable shearing-type internal damper Download PDFInfo
- Publication number
- CN109371814A CN109371814A CN201811302195.XA CN201811302195A CN109371814A CN 109371814 A CN109371814 A CN 109371814A CN 201811302195 A CN201811302195 A CN 201811302195A CN 109371814 A CN109371814 A CN 109371814A
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- CN
- China
- Prior art keywords
- suspension cable
- vibration
- type internal
- wing
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
-
- 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
Abstract
The invention discloses a kind of suspension cable shearing-type internal dampers, the device includes the vibration absorber and clamping device for being fixed on cableway pipe one end, the vibration absorber is equipped with reception room, the clamping device includes the main body of annular, the main body is equipped with the gripping channel for clamping suspension cable, and the main body is equipped with along the edge of a wing that the gripping channel radially extends, the edge of a wing at least provided with a damping block；Meanwhile the edge of a wing is protruded into the reception room, the damping block is embedded in the reception room, and the clamping device and vibration absorber can be movable relatively.Shearing-type internal damper provided by the invention improves the effectiveness in vibration suppression of damper, slows down the vibration of suspension cable significantly by being equipped with damping block in damper using the shear-deformable of damping block.
Description
Technical field
The present invention relates to the controlling of vibration technical fields, and in particular to a kind of suspension cable shearing-type internal damper.
Background technique
With cable-stayed bridge it is extensive construction, bridge span it is increasing, the vibration control problem of suspension cable increasingly by
The attention of people improves the modal damping of suspension cable using additional damping device, is the effective side examined by Practical Project
One of method.Suspension cable damper can be divided into internal damper and external damper according to the difference of installation site.It is external
Formula damper one end is connect with drag-line, and the other end is connect with bridge floor, and installation site is relatively flexible, can meet the damping vibration attenuation of long rope
It is required that and for tackline, since suspension cable inclination angle is larger, external damper installation it is relatively difficult.Internal damper
It is generally support using cableway pipe, installation site is restricted, and for long rope, installation site is smaller, generally cannot
Meet the damping vibration attenuation requirement of suspension cable, and for tackline, the cableway sight at tower end is longer, generally can satisfy installation site
It is required that.Therefore for Longspan Bridge, recommend using " in long rope+external damper " and " tackline+built-in damping
The combination of device ".
Currently used internal damper compares and is typically include rubber compression damper and frcition damper.Patent
Number for ZL200910030638.9 patent " with adaptive stay cable eccentricity and have self-locking function stay cable internal damping
Device ", main dissipative cell are two Hafu-type rubber blocks, and using the compressive deformation damping energy dissipation vibration damping of rubber, which is set
The regulating device of adaptive stay cable eccentricity is counted.In terms of damping efficiency, the compressive deformation damping effect of rubber is lower, rubber
The higher direction of energy efficiency is mainly shear-deformable damping；In addition, the additional stiffness of rubber compressive deformation is bigger, to oblique pull
Rope damping vibration attenuation effect is unfavorable.It, can be frequent occurrence in daily operation stage after the tackline of bridge is mounted with above-mentioned damper
The amplitude of high-frequency, thin tail sheep.The patent " frcition damper " of Patent No. ZL201510304869.X, utilizes frictional damping control
The vibration of suspension cable all directions processed, but frcition damper generally has the starting to play a role a displacement, when drag-line shakes
When dynamic displacement is greater than starting displacement, damper plays passive energy dissipation effect, and when vibration displacement is less than the starting and is displaced, resistance
Buddhist nun's device is degenerated to be displaced fixing end, and damping action is not played.And for the tackline of general suspension cable, vibration shape is shown as more
High-frequency, the feature of thin tail sheep, therefore the control effect of the damper is limited.
Summary of the invention
In view of the deficiencies in the prior art, the purpose of the present invention is to provide a kind of built-in resistances of suspension cable shearing-type
Buddhist nun's device, damper is interior to improve the effectiveness in vibration suppression of damper using the shear-deformable of damping block equipped with damping block.
To achieve the above objectives, the technical solution adopted by the present invention is that:
For being fixed on the vibration absorber of cableway pipe one end, the vibration absorber is equipped with reception room；
Clamping device comprising annular main body, the main body are equipped with the gripping channel for clamping suspension cable, and institute
Main body is stated to be equipped with along the edge of a wing that the gripping channel radially extends, the edge of a wing at least provided with a damping block；Meanwhile
The edge of a wing is protruded into the reception room, and the damping block is embedded in the reception room, and the clamping device
It can be movable relatively with vibration absorber.
Based on the above technical solution, the vibration absorber includes being detachably connected and symmetrical two subtract
Shake part, and each vibration-damped component includes upper mounted plate and bottom plate, and fixed plate is set with bottom plate parallel interval
The reception room for being embedded the damping block is formed when setting.
Based on the above technical solution, it is all provided on fixed plate and bottom plate by the first inner fovea part, it is described
First inner fovea part, which is formed, wears channel for wearing the first of the suspension cable and main body.
Based on the above technical solution, multiple dampings are symmetrically equipped at intervals on the top surface and bottom surface on the edge of a wing
Block.
Based on the above technical solution, the edge of a wing all has certain thickness, is symmetrically arranged on front and back sides more
A and matched groove of the damping block, the damping block are embedded in the groove.
Based on the above technical solution, the main body includes being detachably connected and symmetrical two clampings
Part, each clamping piece all have certain height.
Based on the above technical solution, be equipped with side positioning plate on each vibration-damped component, the side positioning plate with
Bottom plate is integrally formed, and after two vibration-damped components are fastened and connected, the side positioning plate is fixed for gripping
Plate avoids fixed plate and bottom plate along the relative movement for wearing channel direction perpendicular to described first.
Based on the above technical solution, half is equipped on the one end of each vibration-damped component far from the side positioning plate
Cableway pipe hoop, the half cableway pipe hoop and bottom plate are integrally formed, after two vibration-damped components are fastened and connected, two
A half cableway pipe hoop forms the cableway pipe anchor ear for being fixed on the cableway pipe.
Based on the above technical solution, fixed plate and bottom plate are fixed by fastening bolt, the wing
Edge is equipped with the multiple bolts hole worn for the fastening bolt, and the diameter of each bolt hole is all larger than the fastening spiral shell
Bolt.
Based on the above technical solution, rubber layer is equipped on the inside concave surface of each clamping piece.
Compared with the prior art, the advantages of the present invention are as follows:
(1) suspension cable shearing-type internal damper provided by the invention, is equipped at intervals with resistance on the front and back sides on the edge of a wing
Buddhist nun's block forms reception room between upper mounted plate and bottom plate, the edge of a wing is protruded into reception room and damping block is embedded in reception room
It is fixed, after internal damper is installed between suspension cable and cableway pipe, when suspension cable generates the vibration of different directions, position
It can occur in the damping block on the front and back sides of the edge of a wing shear-deformable, play the effect of passive energy dissipation, to inhibit to slow down suspension cable
Vibration.
(2) suspension cable shearing-type internal damper provided by the invention is equipped in the front and back sides uniform intervals of clamping piece
Multiple damping blocks, damping block here is predominantly shear-deformable, and the effect of its oscillation damping and energy dissipating, device peace can be played from all directions
Dress is convenient, structurally reasonable, small in size, practical.
(3) suspension cable shearing-type internal damper provided by the invention, suspension cable rope after construction period and at bridge
Power is different, and the relative position of suspension cable and cableway pipe can change,, can be with if suspension cable offset is excessive after Cheng Qiao
Fastening bolt is suitably loosened, the deformation pressure of damping block through-thickness is discharged, then tightens fastening bolt, rubber block again
Again it is pressurized, entire damper plays damping energy dissipation effect again.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of suspension cable shearing-type internal damper in the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the clamping device of suspension cable shearing-type internal damper in the embodiment of the present invention.
In figure: 1- vibration absorber, 10- upper mounted plate, 11- bottom plate, 12- side positioning plate, half cableway pipe anchor ear of 13-
Body, 14- reception room, 15- fastening bolt, 16- bolt hole, 2- clamping device, the edge of a wing 20-, 21- damping block, 22- clamping piece.
Specific embodiment
The embodiment of the present invention is described in further detail below in conjunction with attached drawing.
Referring to figure 1 and figure 2, the embodiment of the present invention provides a kind of suspension cable shearing-type internal damper comprising
For being fixed on the vibration absorber 1 of cableway pipe one end, vibration absorber 1 includes being detachably connected and two symmetrical vibration dampings
Part 1, each vibration-damped component 1 includes upper mounted plate 10 and bottom plate 11, when vibration absorber 1 is fixed on cableway pipe one end, resistance
Buddhist nun's device for when damping, bottom plate 11 and 10 parallel interval of upper mounted plate to be arranged, and upper mounted plate 10 and bottom plate 11 it
Between formed reception room 14, from the purposes of device and application method angle, the size of reception room 14 is adjustable.Due to cableway
The section of pipe and suspension cable is circle, and upper mounted plate 10 and bottom plate 11 are semicircle here, when two vibration-damped components 1 are solid
After fixed connection, upper mounted plate 10 and bottom plate 11 can form projected area as circular vibration absorber 1.10 He of upper mounted plate
Bottom plate 11 is equipped with the first inner fovea part, and the first inner fovea part is that semicircle and diameter is bigger than the cross-sectional diameter of suspension cable, when
After two vibration-damped components 1 are fastened and connected, the first inner fovea part, which is formed, wears channel for wearing the first of suspension cable.
Referring to figure 1 and figure 2, damper further includes clamping device 2, and clamping device 2 includes main body in a ring, main body
It is equipped with gripping channel for clamping suspension cable, main body includes being detachably connected and two symmetrical clamping pieces 22,
Each clamping piece 22 be equipped with along the edge of a wing that gripping channel radially extends 20, the front and back sides on the edge of a wing 20 uniform intervals be equipped with it is multiple
Damping block 21, damping block 21 are preferably high-damping rubber block, and shape is sector, and multiple damping blocks 21 are along the circumferentially-spaced of the edge of a wing 20
Distribution.When damper damps, the edge of a wing 20 is stretched in reception room 14, and damping block 21 is embedded in reception room 14, damping
Block 21 is clamped and fastened between upper mounted plate 10 and bottom plate 11, and damping block 21 occurs shear-deformable.From production cost and behaviour
Make convenient angle to set out, upper mounted plate 10 and bottom plate 11 are equipped with also cross upper mounted plate 10 and bottom plate 11
Fastening bolt 15 guarantees that damping block 21 is embedded and is fixed in the reception room 14 that upper mounted plate 10 and bottom plate 11 are formed, and energy
The height size of reception room 14 is adjusted by fastening bolt 15.From the angle of structure, when due to damping, it is fixed on
Clamping device 2 on suspension cable cannot have rigid contact with the vibration absorber 1 being fixed on cableway pipe, therefore on the edge of a wing 20 also
Equipped with the multiple bolts hole 16 worn for fastening bolt 15, position and the damping block 21 of bolt hole 16 are staggered, and each bolt hole
16 diameter is all larger than fastening bolt 15, guarantees that fastening bolt 15 does not connect during wearing bolt hole 16 with clamping device 2
Relative motion can occur for touching, clamping device 2 and vibration absorber 1, and damping block 21 generates shear-deformable.
It is shown in Figure 1, side positioning plate 12,11 one of side positioning plate 12 and bottom plate are equipped on each vibration-damped component 1
Molding is vertically arranged, and is located at the top of bottom plate 11, and after two vibration-damped components 1 are fastened and connected, upper mounted plate 10 is just pressed from both sides
It holds and is fixed between side positioning plate 12, upper mounted plate 10 and bottom plate 11 is avoided to wear channel direction along perpendicular to described first
Relative movement.While guaranteeing that the height size of the reception room 14 between upper mounted plate 10 and bottom plate 11 is adjustable in this way,
Guarantee damping block 21 when occurring shear-deformable, the relative position between upper mounted plate 10 and bottom plate 11 will not change, and protect
Demonstrate,prove the damping of damper.In addition, being equipped with half cableway pipe anchor ear on each one end of vibration-damped component 1 far from side positioning plate 12
Body 13, half cableway pipe hoop 13 and bottom plate 11 are integrally formed and vertical, and half cableway pipe hoop 13 is located at bottom plate
11 lower section.The internal diameter of half cableway pipe hoop 13 and the outer diameter of cableway pipe match, after two vibration-damped components 1 are fastened and connected,
Two and half cableway pipe hoops 13 can form the cableway pipe anchor ear for being fixed on cableway pipe, and vibration absorber 1 is fixed on rope
On one end of deferent.
Further, in order to guarantee stability fixed between clamping device 2 and suspension cable, clamping piece 22 is along suspension cable
Direction mountain have certain height, when two clamping pieces 22 link together constitute main body and formed gripping channel after, increase
The contact area of main body and suspension cable, it is ensured that relative stability between clamping device 2 and suspension cable.In addition, due to oblique
Drag-line and clamping device 2 are that metal material is made, and friction is small, therefore are equipped with rubber on the inside concave surface of main body
Layer increases the frictional force of main body and suspension cable.Here the diameter that the diameter of main body wears channel less than first.
Further, since in damping process, damper can integrally bear biggish power, therefore the edge of a wing 20 all has one
Fixed thickness, preventing it, deformation occurs in loading process.In order to guarantee the stability connected between damping block 21 and the edge of a wing 20,
Here the multiple and matched groove of damping block 21 is symmetrically arranged on the front and back sides on the edge of a wing 20, the cup depth of groove is 1-2mm,
The shape of groove notch and the shape of damping block 21 are agreed with, and damping block 21 is embedded in groove, be can effectively prevent damping block 21 and are existed
Occur to generate the relative movement with the edge of a wing 20 when shearing damp.In order to further reinforce, it is embedded in groove in damping block 21
It is equipped with glue-line on one side, prevents damping block 21 from falling off with 20 surface of the edge of a wing.
Further, the power born during damping due to damper is larger, in upper mounted plate 10
Top surface is equipped with the lesser ribbed stiffener of radius corresponding with side fixed plate 12, and ribbed stiffener is vertical with upper mounted plate 10.From being produced into
The angle that this and product use is set out, and is adopted and is screwed between the component of two vibration-damped components, the components of two clamping pieces 22 it
Between also adopt and be screwed.
The present invention is not only limited to above-mentioned preferred forms, anyone can show that other are each under the inspiration of the present invention
The product of kind form, however, make any variation in its shape or structure, it is all with identical or similar with the present invention
Technical solution, within its protection scope.
Claims (10)
1. a kind of suspension cable shearing-type internal damper, for suspension cable to be fixed on cableway pipe, which is characterized in that it is wrapped
It includes:
For being fixed on the vibration absorber (1) of cableway pipe one end, the vibration absorber (1) is equipped with reception room (14)；
Clamping device (2) comprising annular main body, the main body are equipped with the gripping channel for clamping suspension cable, and institute
Main body is stated to be equipped with along the edge of a wing that the gripping channel radially extends (20), the edge of a wing (20) at least provided with a damping block
(21)；Meanwhile
The edge of a wing (20) is protruded into the reception room (14), and the damping block (21) is embedded in the reception room (14), and
The clamping device (2) and vibration absorber (1) can be movable relatively.
2. a kind of suspension cable shearing-type internal damper as described in claim 1, it is characterised in that: the vibration absorber
(1) include being detachably connected and two symmetrical vibration-damped components, each vibration-damped component include upper mounted plate (10) and
It is formed when bottom plate (11), fixed plate (10) and bottom plate (11) parallel interval are arranged for being embedded the damping
The reception room (14) of block (21).
3. a kind of suspension cable shearing-type internal damper as claimed in claim 2, it is characterised in that: fixed plate
(10) and on bottom plate (11) it is all provided with by the first inner fovea part, first inner fovea part is formed for wearing the suspension cable and master
The first of body wears channel.
4. a kind of suspension cable shearing-type internal damper as described in claim 1, it is characterised in that: the edge of a wing (20)
Multiple damping blocks (21) are symmetrically equipped at intervals on top surface and bottom surface.
5. a kind of suspension cable shearing-type internal damper as claimed in claim 4, it is characterised in that: the edge of a wing (20) is equal
With certain thickness, the multiple and damping block (21) matched groove, the damping block are symmetrically arranged on front and back sides
(21) it is embedded in the groove.
6. a kind of suspension cable shearing-type internal damper as described in claim 1, it is characterised in that: the main body includes can
Dismantling connection and two symmetrical clamping pieces (22), each clamping piece (22) all have certain height.
7. a kind of suspension cable shearing-type internal damper as claimed in claim 3, it is characterised in that: each vibration-damped component
On be equipped with side positioning plate (12), the side positioning plate (12) and bottom plate (11) are integrally formed, two vibration-damped component buttons
After closing connection, the side positioning plate (12) for gripping fixed plate (10), avoid fixed plate (10) with
Bottom plate (11) is along the relative movement for wearing channel direction perpendicular to described first.
8. a kind of suspension cable shearing-type internal damper as claimed in claim 7, it is characterised in that: each vibration-damped component
Be equipped with half cableway pipe hoop (13) on one end far from the side positioning plate (12), the half cableway pipe hoop (13) with
Bottom plate (11) is integrally formed, and after two vibration-damped components are fastened and connected, two half cableway pipe hoops (13) are formed
Cableway pipe anchor ear for being fixed on the cableway pipe.
9. a kind of suspension cable shearing-type internal damper as claimed in claim 8, it is characterised in that: fixed plate
(10) and bottom plate (11) is fixed by fastening bolt (15), and the edge of a wing (20) is equipped with wears for the fastening bolt (15)
If multiple bolts hole (16), the diameter of each bolt hole (16) is all larger than the fastening bolt (15).
10. a kind of suspension cable shearing-type internal damper as claimed in claim 7, it is characterised in that: each clamping
Rubber layer is equipped on the inside concave surface of part (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811302195.XA CN109371814A (en) | 2018-11-02 | 2018-11-02 | A kind of suspension cable shearing-type internal damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811302195.XA CN109371814A (en) | 2018-11-02 | 2018-11-02 | A kind of suspension cable shearing-type internal damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109371814A true CN109371814A (en) | 2019-02-22 |
Family
ID=65397483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811302195.XA Pending CN109371814A (en) | 2018-11-02 | 2018-11-02 | A kind of suspension cable shearing-type internal damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109371814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112095447A (en) * | 2020-09-22 | 2020-12-18 | 马亮 | Novel annular damper for inhibiting vibration of bridge stay cable |
| WO2021244716A1 (en) * | 2020-06-05 | 2021-12-09 | Damptech A/S | Damper and damper system for damping relative lateral movement between a tensioned cable and a support structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001131913A (en) * | 1999-11-02 | 2001-05-15 | Bridgestone Corp | Seismic control structure |
| WO2002029276A1 (en) * | 2000-10-04 | 2002-04-11 | Robinson Seismic Limited | Vibration damping energy absorber |
| US20030093869A1 (en) * | 2001-11-19 | 2003-05-22 | Christian Petersen | Cable damper |
| WO2006085780A1 (en) * | 2005-02-11 | 2006-08-17 | Robinson Seismic Ip Limited | Vibration damper |
| CN102936874A (en) * | 2012-10-29 | 2013-02-20 | 柳州欧维姆机械股份有限公司 | Shear type rubber damper with cable fastening device |
-
2018
- 2018-11-02 CN CN201811302195.XA patent/CN109371814A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001131913A (en) * | 1999-11-02 | 2001-05-15 | Bridgestone Corp | Seismic control structure |
| WO2002029276A1 (en) * | 2000-10-04 | 2002-04-11 | Robinson Seismic Limited | Vibration damping energy absorber |
| US20030093869A1 (en) * | 2001-11-19 | 2003-05-22 | Christian Petersen | Cable damper |
| WO2006085780A1 (en) * | 2005-02-11 | 2006-08-17 | Robinson Seismic Ip Limited | Vibration damper |
| CN102936874A (en) * | 2012-10-29 | 2013-02-20 | 柳州欧维姆机械股份有限公司 | Shear type rubber damper with cable fastening device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021244716A1 (en) * | 2020-06-05 | 2021-12-09 | Damptech A/S | Damper and damper system for damping relative lateral movement between a tensioned cable and a support structure |
| CN115917181A (en) * | 2020-06-05 | 2023-04-04 | 减振技术公司 | Damper and damper system for damping relative lateral movement between a tensioned cable and a support structure |
| CN115917181B (en) * | 2020-06-05 | 2024-02-20 | 减振技术公司 | Passive damper and damper system |
| CN112095447A (en) * | 2020-09-22 | 2020-12-18 | 马亮 | Novel annular damper for inhibiting vibration of bridge stay cable |
| CN112095447B (en) * | 2020-09-22 | 2022-02-01 | 中工建设集团(福建)有限公司 | Annular damper for inhibiting vibration of bridge stay cable |
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Application publication date: 20190222 |