CN209482118U - A kind of board-like sunpender inhibiting Vortex-excited vibration - Google Patents
A kind of board-like sunpender inhibiting Vortex-excited vibration Download PDFInfo
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- CN209482118U CN209482118U CN201920105259.0U CN201920105259U CN209482118U CN 209482118 U CN209482118 U CN 209482118U CN 201920105259 U CN201920105259 U CN 201920105259U CN 209482118 U CN209482118 U CN 209482118U
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- sunpender
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- vortex
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- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 19
- 230000005764 inhibitory process Effects 0.000 claims description 6
- 230000003447 ipsilateral effect Effects 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 230000006378 damage Effects 0.000 description 4
- 238000005243 fluidization Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000873 masking effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The utility model discloses a kind of board-like sunpenders for inhibiting Vortex-excited vibration, include the plate that cross section is rectangle and two turbulence columns being connected on the plate, two turbulence columns are oppositely arranged, each turbulence columns are connected to the corresponding short side of the plate by least two connecting components, each turbulence columns have gap between short side corresponding with plate, each turbulence columns include at least three sides, junction between two neighboring side is the wedge angle of evagination, it apart from the corresponding short side of plate is farthest wind deflector one in each all sides of the turbulence columns, orthographic projection covering plate corresponding short side of the wind deflector one on the corresponding short side of the plate.The aerodynamic configuration of board-like sunpender is effectively improved using the present apparatus, the regularity for having upset vortex falls off, and the Vortex-excited vibration amplitude for reducing board-like sunpender reduces, and improves the stability and wind resistance of sunpender itself, reduces the security risk of bridge structure.
Description
Technical field
The utility model relates to bridge plate-type sunpender pneumatic structure technical field, in particular to a kind of inhibition Vortex-excited vibration
Board-like sunpender.
Background technique
Sunpender is the main Force transmission parts of half through or through arch bridge, and security performance is directly related to the safety of bridge structure
Property and durability, as modern bridge gradually develops towards the direction of super-span, the slenderness ratio of sunpender is further enlarged, and its
Light weight, damping ratio are small, aerodynamic stability is poor, therefore are easy to happen a variety of nuisance vibrations, influence bridge service life and even endanger
And the structure safety of whole bridge.For example, the Commodore Barry bridge in the U.S. is after undergoing two days storms, 9 sunpenders are almost
Fracture completely then inhibits wind-induced vibration by the way that damper is arranged, but takes nearly 1,300,000 dollars thus；Jiujiang rail-road two
Make aperture processing in design with booms on large bridge, but after main arch rib closure, substantially vortex-induced vibration still occurs, finally by
Setting TMD inhibits sunpender whirlpool to shake.
Currently, the draught exclusion device of sunpender generally uses viscoplasticity tuned mass damper (TMD), and still, the quenched resistance of the viscoplasticity
Buddhist nun's device structure durability itself is poor, project cost is high, maintenance expense is high, it is difficult to obtain promotion and application；Simultaneously because plate
For the depth-width ratio of formula sunpender cross section generally in 1:4 ~ 1:8, two characteristic length size differences are larger, therefore, different incoming flow wind directions
Leading to the vortex-induced vibration form of board-like sunpender, there were significant differences, and the change of wind direction will not change the whirlpool vibration form of round sunpender,
Therefore, the design of existing round sunpender can not be effectively applicable to board-like sunpender.
Therefore, it is badly in need of designing a kind of board-like vibration damping sunpender with good wind resistance.
Utility model content
It is easy to be influenced by Vortex-excited vibration the purpose of the utility model is to overcome existing bridge plate-type sunpender, increases bridge
Girder construction insecurity factor, but the above-mentioned deficiencies such as existing solution economy is poor provide a kind of plate for inhibiting Vortex-excited vibration
Formula sunpender.
To achieve the goals above, the utility model provides following technical scheme:
A kind of board-like sunpender inhibiting Vortex-excited vibration for the plate of rectangle and is connected on the plate comprising cross section
Two turbulence columns, two turbulence columns are oppositely arranged, and each turbulence columns are connected to institute by least two connecting components
It states the corresponding short side of plate, there is gap between each turbulence columns short side corresponding with plate, it is each described to disturb
Fluidization tower includes at least three sides, and the junction between two neighboring side is the wedge angle of evagination, and each turbulence columns are all
It apart from the corresponding short side of plate is farthest wind deflector one in side, the wind deflector one is in the corresponding short side of the plate
The corresponding short side of orthographic projection covering plate on side.
It is the plate of rectangle comprising cross section using a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model
With two turbulence columns being connected on the plate, two turbulence columns are located at two short sides of the plate
Two sides, can be used to be fixedly connected can also be used and are detachably connected, and two short sides of the plate are respectively connected with a flow-disturbing
Column, is effectively improved the aerodynamic configuration of board-like sunpender, is the wedge angle of evagination in the turbulence columns, improves shunting effect, inhibits wind
Vibration, board-like sunpender during installation, long edge along bridge to installation, can make the longitudinal direction of the plate windward when, effectively increase
Range windward, improves the stability and wind resistance of sunpender itself, and plate is avoided to twist damage, each described to disturb
It apart from the corresponding short side of plate is farthest wind deflector one in all sides of fluidization tower, the wind deflector one is in the plate pair
The corresponding short side of orthographic projection covering plate on the short side answered, thus short side direction windward when, it is distinguished and admirable to receive
The blocking of turbulence columns generates separation, and the entire short side of the plate will not face distinguished and admirable, the distinguished and admirable attachment on sunpender of reduction directly, often
A turbulence columns have gap between short side corresponding with plate, can effectively upset the vortex near sunpender, avoid shape
At whirlpool, inhibiting Vortex-excited vibration, the service life of effective member for prolonging reduces the security risk of bridge structure, economical,
It is easy for installation.
Preferably, the cross section of each turbulence columns is triangle, one of angle court of each turbulence columns
To corresponding short side.
It is further preferred that each connecting component is connected in the corresponding angles of ipsilateral turbulence columns, each connection
The central axes of component are overlapped with the central axes of plate.
Using above-mentioned set-up mode, even if a wedge angle of the turbulence columns is directed at the central axes of the plate, plane is made
For windward side, two sides are inwardly received in inclined-plane, and the distinguished and admirable of turbulence columns periphery can be made to collide, and effectively increase interference, further
It improves and upsets the effect of air-flow.
It is further preferred that the triangle is equilateral triangle.
Using above-mentioned set-up mode, processing can be facilitated, be easily installed.
It is further preferred that the side length of the equilateral triangle is 1.2-2 times of the slab-thickness.
Preferably, the spacing of each turbulence columns short side corresponding with plate is the 1-2.5 of the slab-thickness
Times.
Using above-mentioned set-up mode, avoid gap too small, so that the flow-disturbing of long side windward is ineffective；Also gap mistake is avoided
Greatly, short side windward when, air-flow after flow-disturbing post separation, can adhere to again in plate long side, it is ineffective.
Preferably, the shape of two turbulence columns, size are all the same, the clearance distance of two turbulence columns and plate
It is equal.
Preferably, the length of two turbulence columns is identical as the length of plate.
Preferably, each turbulence columns are an integral molding structure with ipsilateral all connecting components, the flow-disturbing
Column and connecting component are aluminum component or steel components.
Preferably, during installation, the upper and lower ends of each turbulence columns have gap.
Using above-mentioned set-up mode, although that is, each turbulence columns along the elongated setting of the plate, are not necessarily to and arched girder
It is connected with bridge floor beam and retains gap, avoids turbulence columns from participating in structure stress, and the air-flow of plate mounting end can be made
Separating effect is more preferable.
In conclusion compared with prior art, the utility model has the beneficial effects that
1, using a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model, it is effectively improved the gas of board-like sunpender
Dynamic shape, upsets the vortex near sunpender, and the regularity for having upset vortex falls off, and reduces the lift vibration width of board-like sunpender
Value, so that the Vortex-excited vibration amplitude of board-like sunpender reduces, improves the stability and wind resistance of sunpender itself, sunpender is avoided to send out
Raw torsion damage, reduces the distinguished and admirable attachment on sunpender, the service life of effective member for prolonging reduces the safety wind of bridge structure
Danger, economical are easy for installation.
2, using a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model, the wind on turbulence columns periphery can be made
Stream collides, and effectively increases interference, further increases the effect of flow-disturbing, takes into account the Vortex-excited vibration for inhibiting plate both direction.
Detailed description of the invention:
Fig. 1 is a kind of structural schematic diagram of the board-like sunpender of inhibition Vortex-excited vibration described in the utility model；
Fig. 2 is the cross-sectional view at the A in Fig. 1；
Fig. 3 is the cross-sectional view at the B in Fig. 1；
Fig. 4 be embodiment 1 board-like sunpender short side windward when flow field vorticity figure；
Fig. 5 be embodiment 1 board-like sunpender long side windward when flow field vorticity figure；
Fig. 6 is the structure sectional view for the board-like sunpender that one of embodiment 2 inhibits Vortex-excited vibration；
Fig. 7 is the structural schematic diagram for the board-like sunpender that one of embodiment 3 inhibits Vortex-excited vibration；
Fig. 8 is the structural schematic diagram for the board-like sunpender that one of embodiment 4 inhibits Vortex-excited vibration.
Marked in the figure: 1- plate, the short side 11-, 2- turbulence columns, 21- wind deflector one, 3- connecting component.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described in further detail the utility model.But this should not be understood
Embodiment below, all technologies realized based on the content of the present invention are only limitted to for the range of the above-mentioned theme of the utility model
Belong to the scope of the utility model.
Embodiment 1
As shown in Figure 1-3, a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model, is square comprising cross section
The plate 1 of shape and two turbulence columns 2 being connected on the plate 1, two turbulence columns 2 are symmetrical arranged, disturb described in two
Shape, the size of fluidization tower 2 are all the same, and each turbulence columns 2 are connected to pair of the plate 1 by several connecting components 3
The short side 11 answered, size, the shape of all rod pieces are all the same, each turbulence columns 2 short side corresponding with plate 1
There is gap, two turbulence columns 2 are equal with the clearance distance of plate 1, each turbulence columns 2 and plate 1 between side 11
The spacing of corresponding short side 11 is 1-2.5 times of the 1 thickness D of plate, if gap is 1.5D, two turbulence columns 2
Length it is identical as the length of plate 1, the length direction of each turbulence columns 2 is parallel with the length direction of plate 1, each described
Turbulence columns 2 are an integral molding structure with ipsilateral all connecting components 3, and the turbulence columns 2 and all connecting components 3 are adopted
With aluminum component or steel components.
In the present embodiment, each turbulence columns 2 include three sides, and the cross section of each turbulence columns 2 is
Side triangle, the side length of the equilateral triangle preferably use 1.2-2 times of 1 thickness D of plate, and minimum may be configured as 1D, each
One of angle of the turbulence columns 2 is connected to ipsilateral turbulence columns towards corresponding short side 11, each connecting component 3
In 2 corresponding angles, i.e., angle towards the short side 11, the central axes of each connecting component 3 and the central axes of plate 1
It is overlapped, i.e. the center of the thickness of plate 1 described in two 2 faces of turbulence columns, each connecting component 3 is horizontal bar
Part, the spacing of the connecting component 3 of neighbouring two need to guarantee that turbulence columns can reliably and securely be connected with plate 1,
Spacing is preferably less than or equal to 30 times of equilateral triangle side length, corresponding apart from plate 1 in all sides of each turbulence columns 2
Short side 11 is farthest wind deflector 1, i.e. two turbulence columns, 2 outermost two sides are wind deflector in Fig. 2
One 21, the wind deflector 1 is parallel with short side 11, and the wind deflector 1 is in the corresponding short side 11 of the plate 1
On orthographic projection cover the corresponding short side 11 of plate 1, effectively make distinguished and admirable the colliding on 2 periphery of turbulence columns, further mention
Height upsets the effect of air-flow.
Using it is described in the utility model it is a kind of inhibit Vortex-excited vibration board-like sunpender, short side windward when, such as gas in Fig. 4
Stream flow from left to right, incoming flow by front turbulence columns 2 blocking and separate, then invest the middle and back of plate 1 again, tail
Levelling is steady, and due to the masking of turbulence columns, Vortex Shedding phenomenon is unobvious；And long side windward when, as air-flow is from left to right in Fig. 5
Flowing, air-flow pass through rear flowing outward in the gap between turbulence columns 2 and plate 1, turbulence columns upset originally on plate,
Lower section all forms cavity because air-flow separates the vortex that will form at this time in the 1 rear region Hen great of plate, vortex is from plate 1
It falling off just now farther awayly, this structure is effectively improved the aerodynamic configuration of board-like sunpender, effectively upset the vortex near sunpender,
The regularity for having upset vortex falls off, and reduces the lift vibration amplitude of board-like sunpender, so that the Vortex-excited vibration of board-like sunpender shakes
Width reduces, and improves the stability and wind resistance of sunpender itself, and sunpender is avoided to twist damage, and reduction is distinguished and admirable on sunpender
Attachment, the service life of effective member for prolonging reduces the security risk of bridge structure, and economical is easy for installation.
During installation, the upper end connection arch bridge beam of the plate 1, the lower end connection bridge floor beam of the plate 1, and two sides
The upper and lower ends of two turbulence columns 2 are not connected to arch bridge beam and bridge floor beam respectively, retain gap, turbulence columns is avoided to participate in
Structure stress is constructed more convenient, while also avoiding local pressure complicated and the destruction of generation, and tie up convenient for late maintaining
It repairs, and the air-flow separating effect of 1 mounting end of plate can be made more preferable.
Embodiment 2
As shown in fig. 6, a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model, structure and embodiment 1
It is roughly the same, the difference is that, the cross section of each turbulence columns 2 is rectangle, the width of the wind deflector 1 of the turbulence columns 2
Degree is still 1.2D, and trapezoidal, relatively narrow side also can be used close to the short side 11 of the plate 1 in the cross section, wider
Side be wind deflector 1.
Embodiment 3
As shown in fig. 7, a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model, structure and embodiment 1
It is roughly the same, the difference is that, when the length of plate 1 is shorter, if the length of plate 1 is less than 5 ~ 7m, two sides are disturbed
The length that the not elongated setting of fluidization tower 2, i.e. 2 length of turbulence columns are respectively less than the plate 1, it is preferred that the upper end of the turbulence columns 2
Reserved gap is less than or equal to 15 times of equilateral triangle side length, the reserved gap in the lower end of the turbulence columns 2 again smaller than or
Equal to 15 times of equilateral triangle side length, avoid influencing shunting effect.
Embodiment 4
As shown in figure 8, a kind of board-like sunpender for inhibiting Vortex-excited vibration described in the utility model, structure and embodiment 1
It is roughly the same, the difference is that, it is applied in long-span arch bridge, when the length of plate 1 is greater than 30m, if setting one
Whole elongated turbulence columns 2, slenderness ratio will be very big, and processing and manufacturing, the difficulty of connection construction are larger.For component process with
And facilitate construction, turbulence columns 2 can be disconnected, be divided into several segments, such as used 5 ~ 10m for one section, flow-disturbing is considered between two sections
The air-flow centrifugation of the end of column 2 itself, the spacing of adjacent two sections of turbulence columns 2 may be configured as being less than or equal to equilateral triangle
30 times of side length.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. a kind of board-like sunpender for inhibiting Vortex-excited vibration, which is characterized in that for the plate (1) of rectangle and be connected to comprising cross section
Two turbulence columns (2) on the plate (1), two turbulence columns (2) are oppositely arranged, and each turbulence columns (2) pass through
At least two connecting components (3) are connected to the corresponding short side (11) of the plate (1), each turbulence columns (2) and flat
There is gap, each turbulence columns (2) include at least three sides, two neighboring between the corresponding short side (11) of plate (1)
Junction between side is the wedge angle of evagination, apart from the corresponding short side of plate (1) in all sides of each turbulence columns (2)
Side (11) is farthest wind deflector one (21), and the wind deflector one (21) is in the corresponding short side (11) of the plate (1)
On orthographic projection covering plate (1) corresponding short side (11).
2. a kind of board-like sunpender for inhibiting Vortex-excited vibration according to claim 1, which is characterized in that each turbulence columns
(2) cross section is triangle, and one of angles of each turbulence columns (2) is towards corresponding short side (11).
3. a kind of board-like sunpender for inhibiting Vortex-excited vibration according to claim 2, which is characterized in that each interconnecting piece
Part (3) is connected in the corresponding angles of ipsilateral turbulence columns (2), the central axes of each connecting component (3) and the axis of plate (1)
Line is overlapped.
4. it is according to claim 3 it is a kind of inhibit Vortex-excited vibration board-like sunpender, which is characterized in that the triangle be etc.
Side triangle.
5. a kind of board-like sunpender for inhibiting Vortex-excited vibration according to claim 4, which is characterized in that the equilateral triangle
Side length be 1.2-2 times of the plate (1) thickness.
6. a kind of board-like sunpender for inhibiting Vortex-excited vibration according to claim 1, which is characterized in that each turbulence columns
(2) spacing of short side (11) corresponding with plate (1) is 1-2.5 times of the plate (1) thickness.
7. the board-like sunpender of -6 any a kind of inhibition Vortex-excited vibrations according to claim 1, which is characterized in that described in two
Shape, the size of turbulence columns (2) are all the same, and two turbulence columns (2) are equal with the clearance distance of plate (1).
8. the board-like sunpender of -6 any a kind of inhibition Vortex-excited vibrations according to claim 1, which is characterized in that described in two
The length of turbulence columns (2) is identical as the length of plate (1).
9. the board-like sunpender of -6 any a kind of inhibition Vortex-excited vibrations according to claim 1, which is characterized in that each described
Turbulence columns (2) are an integral molding structure with ipsilateral all connecting components (3), the turbulence columns (2) and connecting component (3)
It is aluminum component or steel components.
10. the board-like sunpender of -6 any a kind of inhibition Vortex-excited vibrations according to claim 1, which is characterized in that installing
When, the upper and lower ends of each turbulence columns (2) have gap.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105259.0U CN209482118U (en) | 2019-01-22 | 2019-01-22 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920105259.0U CN209482118U (en) | 2019-01-22 | 2019-01-22 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
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| CN209482118U true CN209482118U (en) | 2019-10-11 |
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| CN201920105259.0U Expired - Fee Related CN209482118U (en) | 2019-01-22 | 2019-01-22 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518587A (en) * | 2019-01-22 | 2019-03-26 | 中铁二院工程集团有限责任公司 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
-
2019
- 2019-01-22 CN CN201920105259.0U patent/CN209482118U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109518587A (en) * | 2019-01-22 | 2019-03-26 | 中铁二院工程集团有限责任公司 | A kind of board-like sunpender inhibiting Vortex-excited vibration |
| CN109518587B (en) * | 2019-01-22 | 2023-09-29 | 中铁二院工程集团有限责任公司 | Plate-type suspender for inhibiting vortex-induced resonance |
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