CN109594463A - A kind of flexible impact damping unit and system applied to sling of suspension bridge - Google Patents
A kind of flexible impact damping unit and system applied to sling of suspension bridge Download PDFInfo
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- CN109594463A CN109594463A CN201910073290.5A CN201910073290A CN109594463A CN 109594463 A CN109594463 A CN 109594463A CN 201910073290 A CN201910073290 A CN 201910073290A CN 109594463 A CN109594463 A CN 109594463A
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- damping unit
- ring
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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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of flexible impact damping units and system applied to sling of suspension bridge, are used to inhibit the vibration of hoist cable；Damping unit includes: a box frame, and bottom is plane；Two cord clips are sheathed on respectively on two hoist cables, and are set to the two sides of box frame；Two cord clips are connected by box frame；An at least damping unit is set in box frame；Damping unit includes: flexible damping ring, is fixedly arranged in box frame；Collision part, is placed in the inner cavity of flexible damping ring and there are the air gaps with the inner wall of flexible damping ring, so that collision occurs freely to roll on the bottom of box frame for collision part to collide flexible damping ring.When the vibration of any direction occurs for hoist cable, collision part occurs freely to roll and collide flexible damping ring on box frame bottom under the action of inertia force, and deformation occurs for flexible damping ring inside, plays damping energy dissipation, inhibit the vibration of hoist cable, which can inhibit the vibration of multiple vibration shapes.
Description
Technical field
The present invention relates to engineering structure antivibration areas, and in particular to a kind of flexible impact applied to sling of suspension bridge
Damping unit and system.
Background technique
The sunpender rope of large-span suspension bridge is the steel wire cable that slenderness ratio is big, high-intensitive, has sole mass light and resistance
The small feature of Buddhist nun, easily generates the wind-induced vibration of diversified forms under extraneous environmental excitation.
The hoist cable vibration problem of large-span suspension bridge is long-standing, and hoist cable vibration problem is in Japanese alum strait Bridge, English
It is found in state plug Wen Qiao, Chinese Xihoumen Bridge etc., since the slenderness ratio of hoist cable is big, initial damping ratio is small, improves hoist cable
Damping be to inhibit the effective measures of hoist cable vibration, therefore a variety of vibration reducing measures are taken to above-mentioned bridge, by the vibration of hoist cable
Dynamic inhibition is within the allowable range.
Currently, generally realizing the effect of vibration damping using damping unit, the bottom surface of the inner chamber of damping unit is generally sky
Between arc-shaped curved surface, arc radius determines it with intrinsic frequency, when steel ball rolls in it, it can be understood as single pendulum fortune
Dynamic, therefore, this kind of damping unit generally can be with the difference of dynamic excitation, when the frequency phase of its own frequency and dynamic excitation
Make effectiveness in vibration suppression different and inconsistent from driving frequency with resonance occurs.
With the great development of Bridges in Our Country engineering, especially it is located in estuary, for the bridge of wind environment complexity, for this
More stringent requirements are proposed for the requirement of the hoist cable vibration damping of bridge.In general, the generally double hoist cables of the arrangement of the hoist cable of suspension bridge
Or four hoist cables, from frequency, with the difference of dynamic excitation, the combination vibration of multiple frequencies may occur for hoist cable；From vibration
It is seen in type, there is also a variety of vibration shapes.Therefore, for the research and development of damper, it need further deeply.
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 applied to the soft of sling of suspension bridge
Property collision damping device and system.
To achieve the above objectives, in a first aspect, the embodiment of the present invention provides a kind of flexibility applied to sling of suspension bridge touches
Damping unit is hit, is used to inhibit the vibration of hoist cable；The damping unit includes:
One box frame, bottom are plane；
Two cord clips are sheathed on respectively on two hoist cables, and are set to the two sides of the box frame；Two cord clip passes through
The box frame is connected；
An at least damping unit is set in the box frame；The damping unit includes:
Flexible damping ring is fixedly arranged in the box frame；
Collision part, is placed in the inner cavity of the flexible damping ring and there are between air with the inner wall of the flexible damping ring
Gap, so that the collision part occurs freely to roll to collide the flexible damping ring on the bottom of the box frame.
Based on the above technical solution, the collision part is a steel ball.
Based on the above technical solution, when the collision part is still in the flexible damping ring center, the air
The size in gap is 1~6mm.
Based on the above technical solution, the collision part includes:
Multiple balls are placed on the bottom of the box frame；
One cylindrical body, bottom surface are placed on the multiple ball, and the inner wall of the cylindrical body and the flexible damping ring
There are the air gaps.
Based on the above technical solution, the damping unit further include:
Rigid sheath is attached at the outer wall of the flexible damping ring, and the flexible damping ring passes through the rigidity shield
Set is connected with the box frame.
Based on the above technical solution, single-row in the box frame to set there are three the damping unit.
Based on the above technical solution, the flexible damping ring is the high-damping rubber ring of external tooth form；
Or the flexible damping ring is flexible bag, is filled with damping particles or macromolecule viscoelastic in the flexibility bag
Property material.
Second aspect, the embodiment of the present invention also provide a kind of flexible impact damping system applied to sling of suspension bridge, institute
Stating damping system includes the damping unit that two hoist cable is connected by two hoist cables at least one；Each damping unit packet
It includes:
One box frame, bottom are plane；
Two cord clips are sheathed on respectively on two hoist cables, and are set to the two sides of the box frame；Two cord clip passes through
The box frame is connected；
An at least damping unit is set in the box frame；The damping unit includes:
Flexible damping ring is fixedly arranged in the box frame；
Collision part, is placed in the inner cavity of the flexible damping ring and there are between air with the inner wall of the flexible damping ring
Gap, so that the collision part occurs freely to roll to collide the flexible damping ring on the bottom of the box frame.
Based on the above technical solution, the damping unit is assembled in the relative maximum of the multistage vibration shape of the hoist cable
At displacement.
Based on the above technical solution, the damping system includes multiple damping units, multiple dampings
Device is spaced apart on the hoist cable.
Compared with the prior art, the advantages of the present invention are as follows:
The present invention provides a kind of flexible impact damping unit applied to sling of suspension bridge, and collision part is placed on box frame bottom
In portion, when the vibration of any direction occurs for hoist cable, collision part occurs freely on box frame bottom under the action of inertia force
It rolling to collide flexible damping ring, deformation occurs for flexible damping ring inside, and damping energy dissipation effect is played, the vibration of hoist cable is inhibited,
The damping unit can control the vibration of hoist cable any direction；And the sphere in collision part in one plane rolls
Collision, rolling is unrelated with frequency, therefore the different frequency vibration that hoist cable occurs for the damping unit can control；Secondly, more
The arrangement of a damping unit makes full use of box frame inner space, enhances the stability of the vibration damping of damping unit；
The present invention also provides a kind of flexible impacts applied to sling of suspension bridge to damp system, and multiple vibration shapes can occur for hoist cable
Vibration, and the corresponding vibration shape peak swing of every single order is different, therefore, optimizes, that is, hinders to the installation site of damping unit
The position of Buddhist nun's device installation is as much as possible at the peak swing of multiple vibration shapes；Multiple damping units, multiple resistances are installed
Buddhist nun's device complements each other, cooperates, and the multistage vibration shape is effectively controlled.
Detailed description of the invention
Fig. 1 cuts open for the vertical direction of the flexible impact damping unit applied to sling of suspension bridge a kind of in the embodiment of the present invention
Depending on structural schematic diagram；
Fig. 2 is the schematic cross-sectional view in Fig. 1 along the direction A-A；
Fig. 3 is the vertical direction of another flexible impact damping unit for being applied to sling of suspension bridge in the embodiment of the present invention
Schematic cross-sectional view；
Fig. 4 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in quiet
The only schematic diagram under state；
Fig. 5 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in one
Schematic diagram under first order mode state；
Fig. 6 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in two
Schematic diagram under first order mode state；
Fig. 7 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in three
Schematic diagram under first order mode state；
Fig. 8 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in four
Schematic diagram under first order mode state；
Fig. 9 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in five
Schematic diagram under first order mode state；
Figure 10 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in
Schematic diagram under six first order mode states；
Figure 11 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in
Schematic diagram under seven first order mode states；
Figure 12 ties up to hoist cable for the flexible impact damping body applied to sling of suspension bridge a kind of in the embodiment of the present invention and is in
Schematic diagram under eight first order mode states；
In figure: 1- box frame, 2- cord clip, 3- hoist cable, 4- damping unit, 41- flexibility damping ring, 42- steel ball, 43- rigidity
Sheath, 44- smooth plates, the air gap 45-, 46- ball, 47- cylindrical body, 5- rubber pad, 6- damping unit.
Specific embodiment
Clear, complete description is carried out below with reference to technical solution of the attached drawing to embodiment each in the present invention, it is clear that institute
The embodiment of description is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiment of the present invention,
Those of ordinary skill in the art's obtained all other embodiment without making creative work belongs to this
Invent protected range.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.It should be pointed out that all attached drawings are illustrative expression.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Embodiment
Referring to shown in Fig. 1~2, the embodiment of the present invention provides a kind of flexible impact damping dress applied to sling of suspension bridge
It sets, is used to inhibit the vibration of hoist cable 3；The damping unit includes a box frame 1, two cord clips 2 and an at least damping unit 4；
1 bottom of box frame is plane；Two cord clips 2 are sheathed on respectively on two hoist cables 3, and are set to the box frame 1
Two sides；Two cord clip 2 is rigidly connected by the box frame 1, for constraining the relative motion between the hoist cable 3；It is described
An at least damping unit 4 is set in the box frame 1；The damping unit 4 includes flexible damping ring 41 and collision part, in this reality
It applies in example, the collision part is steel ball 42；The flexibility damping ring 41 is fixedly arranged in the box frame 1；The steel ball 42 is placed in
The inner cavity of the flexibility damping ring 41 and there are the air gaps 45 with the inner wall of the flexible damping ring 41, so that the steel ball 42
Occur freely to roll collision on the bottom of the box frame 1.
The embodiment of the present invention provides a kind of flexible impact damping unit applied to sling of suspension bridge, and steel ball is at box frame bottom
In portion, in the region that flexible damping ring limits, when the vibration of any direction occurs for hoist cable, steel ball under the action of inertia force
Occur freely to roll and collide flexible damping ring on box frame bottom, deformation occurs for flexible damping ring inside, plays damping energy dissipation
Effect, inhibits the vibration of hoist cable, which can control the vibration of hoist cable any direction；And steel ball is in a plane
Upper generation rolls collision, and the rolling of steel ball is unrelated with frequency, therefore the different frequency that hoist cable occurs for the damping unit vibrates
It can control.
Further, when the collision part is still in flexible 41 center of damping ring, the air gap 45 it is big
Small is 1~6mm；The gap and inhaul cable vibration frequency and vibration amplitude it is related (the low-frequency vibration amplitude of general hoist cable greatly, high frequency vibrating
Dynamic amplitude is small), the air gap 45 is the minimum range of the ball 42 with the inner wall of the flexible damping ring 41.When the sky
Gas gap it is excessive when, steel ball in the flexible damping ring 41 from static relatively large to the time interval to collide, then
More apparent vibration is produced in collision foregoing description hoist cable, therefore its effectiveness in vibration suppression is unobvious, and has worked as the air
When gap is too small, steel ball collision impact in the flexible damping ring 41 is limited, therefore can also reduce the effect of damping energy dissipation,
Therefore we are this range of 1~6mm according to the size of the air gap 45 preferred in actual test, and steel ball is in inertia force
Occur freely to roll and collide flexible damping ring on box frame bottom under effect, deformation occurs for flexible damping ring inside, plays
Damping energy dissipation effect, inhibits the vibration of hoist cable, which can control the vibration of hoist cable any direction.
As the another embodiment of the embodiment of the present invention, the embodiment of the present invention provides a kind of applied to sling of suspension bridge
Flexible impact damping unit, as shown in figure 3, it is used to inhibit the vibration of hoist cable 3；The damping unit include a box frame 1,
Two cord clips 2 and at least a damping unit 4；1 bottom of box frame is plane；Two cord clips 2 are hung described in being sheathed on two respectively
On rope 3, and it is set to the two sides of the box frame 1；Two cord clip 2 is rigidly connected by the box frame 1, described for constraining
Relative motion between hoist cable 3；An at least damping unit 4 is set in the box frame 1；The damping unit 4 includes soft
Property damping ring 41 and collision part, in the present embodiment, the flexibility damping ring 41 is fixedly arranged in the box frame 1, the collision
Part includes multiple balls 46 and a cylindrical body 47, wherein the multiple ball 46 is placed on the bottom of the box frame 1, described
The bottom surface of cylindrical body 47 is placed on the multiple ball 46, and the bottom of the cylindrical body 47 is provided with groove, and the groove will be multiple
46 part above of ball is limited in groove, and there are air for the inner wall of the cylindrical body 47 and the flexible damping ring 41
Gap 45, when the cylindrical body 47 is still in flexible 41 center of damping ring, the size of the air gap 45 is 1~6mm.
In the present embodiment, when the vibration of any direction occurs for hoist cable, cylindrical body 47 relies on cylindrical body 47 under the action of inertia force
Multiple balls of bottom and flexible damping ring collide, and deformation occurs inside flexible damping ring, play damping energy dissipation effect, suppression
The vibration of hoist cable processed, the damping unit can control the vibration of hoist cable any direction；And ball in one plane rolls
Dynamic collision, the rolling of ball is unrelated with frequency, therefore the different frequency vibration that hoist cable occurs for the damping unit can control；
And the cylindrical body is for providing the inertia force of big quality, and its handling ease, and in general, steel ball is for processing technology
It is more demanding, therefore generally staff purchases, specification is certain, then facilitating processing for cylindrical body
Suitable cylinder diameter can be obtained according to actual needs, then in contrast, the damping unit of this form is more economical.
In embodiments of the present invention, the flexible damping ring 41 is the high-damping rubber ring of external tooth form；Or it is described soft
Property damping ring 41 be flexible bag, be filled with damping particles or polymer viscoelastic material in the flexibility bag.In practical examination
In testing, the flexibility damping ring 41 is the damping energy dissipation efficiency of flexible bag higher than high-damping rubber material, therefore for flexibility
The material selection of damping ring 41 can preferentially be chosen.
As further improving and supplementing to the present embodiment, the damping unit 4 further includes rigid sheath 43, is attached
In the outer wall of the flexible damping ring 41, and the flexible damping ring 41 is solid by the rigid sheath 43 and the box frame 1
Even.In collision of the flexible damping ring 41 by steel ball, ring body deforms, therefore in the flexible damping ring 41
One layer of rigid sheath 43 is attached on outer wall, accepts the flexible damping ring 41 deformed.
Further, the damping unit 4 further includes the smooth plates 44 being laid on 1 bottom of box frame.It is smooth
The thickness of plate 44 in the present embodiment is about 1.5mm, and surface layer is more smooth, for the vibration of any direction occurs when hoist cable
When, the sensitivity that flexible damping ring occurs freely to roll and collide on box frame bottom under the action of inertia force for steel ball is got over
It is high.
Further, single-row in the box frame 1 to set there are three the damping unit 4.The arrangement of multiple damping units, fills
Divide and utilize box frame inner space, enhances the stability of the vibration damping of damping unit.
Further, the inner ring of the cord clip 2 is additionally provided with the rubber pad 5 for being attached at 3 surface of hoist cable.The rubber
Rubber mat 5 avoids rigid cord clip 2 and hoist cable 3 and directly contacts, and improves the service life of cord clip 2 and hoist cable 3.
Second aspect, as shown in Fig. 4~12, the embodiment of the present invention also provides a kind of flexibility applied to sling of suspension bridge and touches
Damping system is hit, the damping system includes the damping unit 6 that two hoist cable 3 is connected by two hoist cables 3 at least one；Such as figure
Shown in 1~2, each damping unit includes a box frame 1, two cord clips 2 and an at least damping unit 4；1 bottom of box frame
Portion is plane；Two cord clips 2 are sheathed on respectively on two hoist cables 3, and are set to the two sides of the box frame 1；Two rope
Folder 2 is rigidly connected by the box frame 1, for constraining the relative motion between the hoist cable 3；An at least damping unit
4 are set in the box frame 1.
The damping unit 4 includes flexible damping ring 41 and steel ball 42；The flexibility damping ring 41 is fixedly arranged on the box
In frame 1；The steel ball 42 is placed in the inner cavity of the flexible damping ring 41 and there are air with the inner wall of the flexible damping ring 41
Gap 45, so that the steel ball 42 occurs freely to roll collision on the bottom of the box frame 1.
Or the damping unit 4 includes flexible damping ring 41 and collision part, in the present embodiment, as shown in figure 3, described
Flexible damping ring 41 is fixedly arranged in the box frame 1, and the collision part includes multiple balls 46 and a cylindrical body 47, wherein institute
It states multiple balls 46 to be placed on the bottom of the box frame 1, the bottom surface of the cylindrical body 47 is placed on the multiple ball 46, institute
The bottom for stating cylindrical body 47 is provided with groove, and multiple 46 part above of ball are limited in groove by the groove, and institute
Stating the inner wall of cylindrical body 47 and the flexible damping ring 41, there are the air gaps 45.
Further, shown in referring to fig. 4~12, when hoist cable is under static or different vibration shape states, damping unit 6
In same position on hoist cable 3, through obtained by multiple authentication, the vibration displacement that the damping unit 6 is mounted in the corresponding vibration shape is larger
Position, can preferably play damping effect, therefore, in embodiments of the present invention, it is preferable that assemble the damping unit 6
At the relative maximum displacement of the multistage vibration shape of the hoist cable 3, i.e., the location of single or multiple described damping units 6 can
As much as possible at the maximum displacement of multiple vibration shapes.
Further, the damping system includes multiple damping units 6, and multiple damping units 6 are hung described
It is spaced apart on rope 3.Multiple damping units are installed, multiple damping units complement each other, cooperate, effective for the multistage vibration shape
Control.
In embodiments of the present invention, the length of the hoist cable 3 is pacified between the adjacent hoist cable 3 within 80m
The damping unit is filled, that is, can reach good effectiveness in vibration suppression；Length for the hoist cable 3 is more than 80m, adjacent
The hoist cable 3 between at least two damping units 6 are installed, effectiveness in vibration suppression is obvious.
The embodiment of the present invention also provides a kind of flexible impact damping system applied to sling of suspension bridge, and hoist cable can occur more
The vibration of a vibration shape, and the position of the corresponding vibration shape maximum displacement of every single order is not quite similar, and therefore, installs multiple damping units,
And the installation site of damping unit is optimized, i.e., damping unit is mounted at the maximum displacement of the vibration shape as far as possible, it is multiple
Damping unit complements each other, cooperates, and the multistage vibration shape is effectively controlled.
The present invention is not limited to the above-described embodiments, for those skilled in the art, is not departing from
Under the premise of the principle of the invention, several improvements and modifications can also be made, these improvements and modifications are also considered as protection of the invention
Within the scope of.The content being not described in detail in this specification belongs to the prior art well known to professional and technical personnel in the field.
Claims (10)
1. a kind of flexible impact damping unit applied to sling of suspension bridge, is used to inhibit the vibration of hoist cable (3)；Its feature exists
In the damping unit includes:
One box frame (1), bottom are plane；
Two cord clips (2) are sheathed on respectively on two hoist cables (3), and are set to the two sides of the box frame (1)；Two rope
(2) are pressed from both sides to be connected by the box frame (1)；
An at least damping unit (4) is set in the box frame (1)；The damping unit (4) includes:
Flexible damping ring (41) is fixedly arranged in the box frame (1)；
Collision part, is placed in the inner cavity of the flexible damping ring (41) and there are air with the inner wall of the flexible damping ring (41)
Gap (45), so that the collision part occurs freely to roll to collide the flexible damping on the bottom of the box frame (1)
Ring (41).
2. a kind of flexible impact damping unit applied to sling of suspension bridge according to claim 1, which is characterized in that institute
Stating collision part is a steel ball (42).
3. a kind of flexible impact damping unit applied to sling of suspension bridge according to claim 1, which is characterized in that institute
When stating collision part and being still in described flexible damping ring (41) center, the size of the air gap (45) is 1~6mm.
4. a kind of flexible impact damping unit applied to sling of suspension bridge according to claim 1, which is characterized in that institute
Stating collision part includes:
Multiple balls (46) are placed on the bottom of the box frame (1)；
One cylindrical body (47), bottom surface are placed on the multiple ball (46), and the cylindrical body (47) and the flexible damping
There are the air gap (45) for the inner wall of ring (41).
5. a kind of flexible impact damping unit applied to sling of suspension bridge according to claim 1, which is characterized in that institute
State damping unit (4) further include:
Rigid sheath (43) is attached at the outer wall of the flexible damping ring (41), and the flexible damping ring (41) passes through institute
It states rigid sheath (43) and the box frame (1) is connected.
6. a kind of flexible impact damping unit applied to sling of suspension bridge according to claim 1, which is characterized in that institute
State single-row in box frame (1) set there are three the damping unit (4).
7. a kind of flexible impact damping unit applied to sling of suspension bridge according to claim 1, which is characterized in that institute
State the high-damping rubber ring that flexible damping ring (41) are external tooth form；
Or the flexible damping ring (41) is flexible bag, is filled with damping particles or macromolecule viscoelastic in the flexibility bag
Property material.
8. a kind of flexible impact applied to sling of suspension bridge damps system, which is characterized in that the damping system is hung including two
The damping unit (6) that two hoist cable (3) is connected by rope (3) at least one；Each damping unit (6) includes:
One box frame (1), bottom are plane；
Two cord clips (2) are sheathed on respectively on two hoist cables (3), and are set to the two sides of the box frame (1)；Two rope
(2) are pressed from both sides to be connected by the box frame (1)；
An at least damping unit (4) is set in the box frame (1)；The damping unit (4) includes:
Flexible damping ring (41) is fixedly arranged in the box frame (1)；
Collision part, is placed in the inner cavity of the flexible damping ring (41) and there are air with the inner wall of the flexible damping ring (41)
Gap (45), so that the collision part occurs freely to roll to collide the flexible damping on the bottom of the box frame (1)
Ring (41).
9. a kind of flexible impact applied to sling of suspension bridge according to claim 8 damps system, which is characterized in that institute
At the relative maximum displacement for stating the multistage vibration shape that damping unit (6) is assembled in the hoist cable (3).
10. a kind of flexible impact applied to sling of suspension bridge according to claim 8 damps system, which is characterized in that
The damping system includes multiple damping units (6), and multiple damping units (6) are spaced on the hoist cable (3) divides
Cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910073290.5A CN109594463B (en) | 2019-01-25 | 2019-01-25 | Flexible collision damping device and system applied to suspension bridge sling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073290.5A CN109594463B (en) | 2019-01-25 | 2019-01-25 | Flexible collision damping device and system applied to suspension bridge sling |
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| CN109594463B CN109594463B (en) | 2023-08-08 |
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