CN108755390A - A kind of active control system and control method improving Large Span Bridges wind resistance - Google Patents
A kind of active control system and control method improving Large Span Bridges wind resistance Download PDFInfo
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- CN108755390A CN108755390A CN201810497199.1A CN201810497199A CN108755390A CN 108755390 A CN108755390 A CN 108755390A CN 201810497199 A CN201810497199 A CN 201810497199A CN 108755390 A CN108755390 A CN 108755390A
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- 238000005259 measurement Methods 0.000 claims abstract description 23
- 239000003381 stabilizer Substances 0.000 claims abstract description 22
- 241000251468 Actinopterygii Species 0.000 claims description 104
- 229910000831 Steel Inorganic materials 0.000 claims description 101
- 239000010959 steel Substances 0.000 claims description 101
- 238000005096 rolling process Methods 0.000 claims description 46
- 230000000694 effects Effects 0.000 claims description 41
- 238000009408 flooring Methods 0.000 claims description 25
- 230000007246 mechanism Effects 0.000 claims description 13
- 230000001105 regulatory effect Effects 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 10
- 229920001971 elastomer Polymers 0.000 claims description 9
- 239000005060 rubber Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
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- 238000010586 diagram Methods 0.000 description 11
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- 238000013016 damping Methods 0.000 description 2
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Classifications
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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
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D3/00—Control of position or direction
- G05D3/12—Control of position or direction using feedback
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- Automation & Control Theory (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of active control systems and control method improving Large Span Bridges wind resistance, deflector and central stabilizer including respective angles can be rotated according to the variation of the wind environments such as the different wind angles of attack, the system detects wind environment signal by wind environment measurement processor, signal is transferred to its internal central controller, the angle exchange program embedded by central controller converts to obtain hydraulic numerical control telescopic rod needs flexible length and deflector, the angle that central stabilizer need to rotate, length signals are passed into hydraulic numerical control telescopic rod again, telescopic rod stretches corresponding length to realize the rotational angle of deflector and central stabilizer.Compared with prior art, rotatable deflector and central stabilizer can make gas preferably shunt, stream along bridge structure, wind resistance of the bridge under different wind environments can be effectively improved, reduce the wind vibration amplitude of bridge structure, improve the aeroperformance of bridge, improves the comfort that vehicle travels on bridge under strong wind weather.
Description
Technical field
The present invention relates to a kind of active control systems and control method improving Large Span Bridges wind resistance, belong to building
Field of engineering technology.
Background technology
It is growing with people's transport need so that bridge construction develops towards the direction greatly across, lightweight, and and this
Its wind-induced vibration problem becomes further prominent simultaneously.Bridge has larger amplitude to make relaxing for driving vehicle under strong wind atmosphere
Adaptive substantially reduces, and hinders even to have interrupted communications and transportation, has seriously affected the development of Transport Economic Zone.Bridge is once by wind
Calamity influence damages, and consequence will be extremely serious, and the windburn of bridge is more more frequent than what earthquake occurred in addition, Large Span Bridges
Wind resisting stability problem have become one of the governing factor that can not ignore in Bridge Design.
Currently, generally use structural measure, mechanical measure and aerodynamic Measures improve the wind resisting stability of Large Span Bridges,
Its key is to improve the overall stiffness of bridge using rational section form and structural system, passes through the controls such as vibration isolation, energy consumption
Means processed realize the purpose of bridge vibration damping, and reselection rational aerodynamic Measures improve the pneumatic of bridge structure on this basis
Performance.
Different main beam section shapes generates different shuntings, streams form when causing air flow through girder, and then changes and make
Use the size of air active force in bridge structure.Girder aerodynamic Measures are exactly to add component on girder to change main beam section shape
Shape, to change form when air-flow flows through main beam section, to achieve the purpose that inhibit bridge wind-induced vibration.The gas of generally use
Dynamic measure has：Girder fluting, install additional tuyere, deflector, central stabilizer, in drag-line surface indentation etc..
Deflector is generally arranged in front of tuyere, and can make main beam section integrally becomes more streamlined, can improve girder
Pneumatically around stream mode.Meanwhile Additional pneumatic damping is generated when girder vibrates, girder Oscillation Amplitude can be reduced；Girder top,
Central stabilizer is arranged in lower middle position, can improve around girder around stream mode, make the drift on Vortex Motion Along girder surface by
To obstruction, the wind resistance of girder is improved.
Although the wind resisting stability of bridge can be improved by the way that deflector and upper and lower central stabilizer is arranged, due to vane
The uncertain factors such as wind direction, the wind speed in border are more, and the wind-induced vibration form of bridge is varied, and various wind-induced vibration mechanisms are not yet
Identical, sometimes, certain measure can inhibit a kind of wind-induced vibration, and little to the effect of another wind-induced vibration, in some instances it may even be possible to draw
Play reverse effect.
According to a kind of water conservancy diversion that can rotate respective angles according to the variation of the environment such as the wind angle of attack, the wind speed monitored in real time
Plate and central stabilizer, then can allow gas along bridge structure shunting, stream with the variation of wind environment and can be adjusted to most
Good state, successfully manages the diverse problems of wind-induced vibration variation, and can guarantee the smooth passage of the traffic under strong wind atmosphere.This
The wind environment that the active control system that invention uses is measured according to wind environment measurement processor transmits signal simultaneously by central controller
Hydraulic numerical control telescopic rod is calculated by its embedded angle exchange program and needs the length elongated or shortened and deflector, center
Steadying plate needs the angle that rotates, real-time starter as needed, signal is received by hydraulic numerical control telescopic rod and extend or
Shorten corresponding length to realize the rotation of deflector and central stabilizer, finally by mounted on deflector and central stabilizer
On angular transducer be measured in real time, with central controller realize signal dock, form complete signal circuit, with guarantee
Device can stablize the variation for coping with different wind environments, to improve wind resisting stability of the Large Span Bridges under different wind environments.
In consideration of it, inventor furthers investigate the above problem, there is this case generation then.
Invention content
Respective angles can be rotated the purpose of the present invention is to provide a kind of according to the different wind environments of the real time measure
Deflector and central stabilizer, the deflector of different rotational angles and central stabilizer can be effective under the environment such as different wind angles of attack
The effect windward for improving the buildings such as bridge, makes gas effectively shunt, stream, to improve its wind resistance.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
It is a kind of to improve the active control system of Large Span Bridges wind resistance, including be arranged in the fish mouth of Large Span Bridges side
Steel plate and fish mouth lower steel plate, fish mouth upper steel plate one end connect the upper floorings edge of Large Span Bridges, fish mouth lower steel plate one
The lower floorings edge of end connection Large Span Bridges, the other end of fish mouth upper steel plate and the other end of fish mouth lower steel plate mutually lean on
Closely, movable deflector and control activity the deflector rotation being provided between fish mouth upper steel plate and fish mouth lower steel plate outside
Movable regulating mechanism；Wind environment measurement processor is provided on the floorings of the Large Span Bridges；The Large Span Bridges
Floorings on be additionally provided with a pair of central hinge, be provided with Active central steadying plate between two central hinges, center conjunction
Page is in folded state, and part fixation is attached on floorings, and another part is attached on Active central steadying plate, the activity
Be provided with central hydraulic numerical control telescopic rod between central stabilizer and floorings, central hydraulic numerical control telescopic rod respectively in activity
Entreat steadying plate and upper floorings hinged；It is both provided with angle sensor on the activity deflector and on Active central steadying plate
Device.
Scheme as a further preference, the regulating mechanism include fixed plate, and fixed plate is located at fish mouth upper steel plate and fish
Between mouth lower steel plate, the gap setting across fish mouth upper steel plate and fish mouth lower steel plate has fixed deflector, fixed deflector
One end be fixed in fixed plate, the upper and lower surface of the other end is respectively provided with an industrial heavy hinge, two industrial heavy hinges
The upper movable deflector of each installation one, wherein being set between the movable deflector and fish mouth upper steel plate on top, there are one hydraulic numerical controls
Telescopic rod, the hydraulic numerical control telescopic rod is hinged with movable deflector and fish mouth upper steel plate respectively, by lower part movable deflector with
Set between fish mouth lower steel plate there are one hydraulic numerical control telescopic rod, the hydraulic numerical control telescopic rod respectively under movable deflector and fish mouth
Steel plate is hinged.
Scheme as a further preference, the regulating mechanism include rolling bearing screens outer shroud, rolling bearing inner ring and
Rolling bearing rotation axis, the rolling bearing screens outer shroud are fixed at the same side of fish mouth upper steel plate and fish mouth lower steel plate
Portion, rolling bearing inner ring are located in rolling bearing screens outer shroud, and rolling bearing rotation axis is located at rolling bearing screens outer shroud and turns
Between dynamic bearing inner ring, the activity deflector is exposed to the part outside rolling bearing screens outer shroud mounted on rolling bearing inner ring
On, be provided with hydraulic numerical control telescopic rod between the activity deflector and fish mouth lower steel plate, hydraulic numerical control telescopic rod respectively with work
Dynamic deflector and fish mouth lower steel plate are hinged.
Scheme as a further preference, between the activity deflector runs through between fish mouth upper steel plate and fish mouth lower steel plate
Gap, movable deflector are provided with hydraulic numerical control between fish mouth upper steel plate and the end in fish mouth lower steel plate and fish mouth lower steel plate
Telescopic rod, hydraulic numerical control telescopic rod is hinged with movable deflector and fish mouth lower steel plate respectively, the side peace of hydraulic numerical control telescopic rod
Equipped with block board for fixing, the end of the fish mouth upper steel plate or the end of fish mouth lower steel plate are contacted with movable deflector
Part is provided with abrasive rubber.
A kind of control method for the active control system improving Large Span Bridges wind resistance, includes the following steps：
Step 1：Wind environment measurement processor monitors the wind angle of attack environment residing for Large Span Bridges, wind environment detection process in real time
Central controller is installed inside device；
Step 2：For wind environment measurement processor by the wind angle of attack data transfer monitored to central controller, central controller is logical
Embedded angle exchange program is crossed by wind angle of attack data conversion into movable deflector and the Active central steadying plate angle to be rotated
Degrees of data, angle-data is converted into hydraulic numerical control telescopic rod again for central controller and central hydraulic numerical control telescopic rod is respectively necessary for
The length data elongated or shortened；
Step 3：Central controller sends out instruction to hydraulic numerical control telescopic rod and central hydraulic numerical control telescopic rod, and hydraulic numerical control is stretched
Contracting bar driving activity deflector rotates, and central hydraulic numerical control telescopic rod drives the rotation of Active central steadying plate；
Step 4：After the completion of movable deflector and the rotation of Active central steadying plate, passed by the angle installed on movable deflector
The angular transducer installed on sensor and Active central steadying plate detects actual rotation angle respectively, and by actual rotation angle
Central controller is fed back to be proofreaded.
Compared with prior art, active control system of the invention by realize deflector and central stabilizer rotation,
To cope with the variation of the wind environments such as the different wind angles of attack, the gas energy to ensure at tuyere, on the buildings such as floorings and bridge tower
It preferably shunts, stream, on the one hand advantageously account for the charming appearance and behaviour that Large Span Bridges are coped with the variation of different wind environments and brought and shake
Dynamic problem, on the other hand can make bridge be in more favorable wind resistance state, improve the wind resisting stability of bridge, make vehicle big
There is preferable driving comfort under wind environment, ensures the smooth passage of traffic under different wind environments.
Deflector and central stabilizer need regular trial operation and are safeguarded, can pass through illumination, light and bridge at this time
The measures such as the cosmetic variation of the structures such as beam make the aesthetic effect of building structure change, and the appearance for enhancing building structure is beautiful
Sense.
Deflector and central stabilizer can realize gathering by rotating corresponding angle when not in use, be conducive to improve
Its service life.
Description of the drawings
Fig. 1 a are the structural schematic diagrams of the embodiment of the present invention one；
Fig. 1 b are the regulating mechanism schematic diagrames of the embodiment of the present invention one；
Fig. 1 c are the structural schematic diagrams of Active central steadying plate；
Fig. 2 a are the structural schematic diagrams of the embodiment of the present invention two；
Fig. 2 b are the regulating mechanism schematic diagrames of the embodiment of the present invention two；
Fig. 3 a are the structural schematic diagrams of the embodiment of the present invention three；
Fig. 3 b are the regulating mechanism schematic diagrames of the embodiment of the present invention three；
Fig. 4 a are the cross section that this active control system is applied to bridge tower；
Fig. 4 b are the partial structural diagram that this active control system is applied to bridge tower；
Fig. 5 a are the cross section that this active control system is applied to skyscraper；
Fig. 5 b are the partial structural diagram that this active control system is applied to skyscraper；
Wherein, 101- fish mouths upper steel plate, 102- fish mouth lower steel plates, 2- activity deflectors, 3- fixed plates, 4- fix deflector, 5-
Industrial heavy hinge, 6- hydraulic numerical control telescopic rods, 7- wind environment measurement processors, 8- rolling bearing screens outer shrouds, 9- rotation axis
Hold inner ring, 10- rolling bearing rotation axis, 11- block boards, 12- abrasive rubbers, the centers 13- hinge, 14- Active central steadying plates,
15- central hydraulic numerical control telescopic rods, 16- angular transducers, 17- bridge tower main bodys, 18- skyscrapers.
Specific implementation mode
The optimal technical scheme that the invention will now be described in detail with reference to the accompanying drawings.
Active control system key provided by the invention is connection and cooperation between each accessory, now provides each accessory
Between connection embodiment and its related application further to be illustrated to the active control system, one kind of the invention changes
The active control system of kind Large Span Bridges wind resistance, including 101 He of fish mouth upper steel plate in Large Span Bridges side is set
Fish mouth lower steel plate 102, fish mouth upper steel plate 101, fish mouth lower steel plate 102, bridge main body constitute fish mouth framework, the fish mouth upper steel plate
101 one end connect the upper floorings edge of Large Span Bridges, and 102 one end of fish mouth lower steel plate connects the lower floorings of Large Span Bridges
Edge, the other end of fish mouth upper steel plate 101 and the other end of fish mouth lower steel plate 102 are close to each other, fish mouth upper steel plate 101 and fish mouth
It is provided with movable deflector 2 and control activity deflector 2 outside between lower steel plate 102 and rotates movable adjusting machine
Structure；Wind environment measurement processor 7 is provided on the floorings of the Large Span Bridges.
For figure as shown in 1c, the upper floorings of the Large Span Bridges or lower bridge floor Board position are additionally provided with a pair of central hinge
13, be provided with Active central steadying plate 14 between two central hinges 13, Active central steadying plate 14 be parallel to bridge along bridge to
Direction, the center hinge 13 are in folded state, and part fixation is attached on floorings, and it is steady that another part is attached to Active central
On fixed board 14, central hydraulic numerical control telescopic rod 15, central hydraulic are provided between the Active central steadying plate 14 and floorings
Numerical control telescopic rod 15 is hinged with Active central steadying plate 14 and upper floorings respectively, and Active central steadying plate 14 passes through central hinge
13 connect with floorings, and wind environment measurement processor 7 controls the flexible of central hydraulic numerical control telescopic rod 15, and it is steady to adjust Active central
The swing angle of fixed board 14, it is ensured that Active central steadying plate 14 rotates at steady-state.
Embodiment one：
Wherein, the overall structure figure of embodiment one is as shown in Figure 1a, and regulating mechanism structure chart is as shown in Figure 1 b；
Fig. 1 b apoplexy environment measurings processor 7 is mounted on bridge floor, and the interior central controller installed embeds angle exchange program.
Wind environment measurement processor 7 transmits a signal to central controller, center control by the wind environment residing for the real time measure girder
Angle exchange program in device can program setting in advance, so as to output activity deflector 2 and the Active central steadying plate of converting in real time
14 need the angle rotated and hydraulic numerical control telescopic rod to need the length elongated or shortened under different wind environments, are controlled by center
Device sends out signal enabling device in real time, it is ensured that movable deflector 2 and Active central steadying plate 14 can turn to corresponding angle.
The regulating mechanism includes fixed plate 3, fixed plate 3 between fish mouth upper steel plate 101 and fish mouth lower steel plate 102,
Gap setting across fish mouth upper steel plate 101 and fish mouth lower steel plate 102 has fixed deflector 4, one end of fixed deflector 4
It is fixed in fixed plate 3, the upper and lower surface of the other end is respectively provided with an industrial heavy hinge 5, each on two industrial heavy hinges 5
The movable deflector 2 of installation one, wherein being set between the movable deflector 2 and fish mouth upper steel plate 101 on top, there are one hydraulic pressure numbers
Telescopic rod 6 is controlled, the hydraulic numerical control telescopic rod 6 is hinged with movable deflector 2 and fish mouth upper steel plate 101 respectively, leans on the activity of lower part
Set between deflector 2 and fish mouth lower steel plate 102 there are one hydraulic numerical control telescopic rod 6, the hydraulic numerical control telescopic rod 6 respectively with activity
Deflector 2 and fish mouth lower steel plate 102 are hinged, and specifically, central controller will need the length signals elongated or shortened to transmit
To hydraulic numerical control telescopic rod 6, is connected, ensured using pin between hydraulic numerical control telescopic rod 6 and movable deflector 2 and fish mouth framework
Hydraulic numerical control telescopic rod 6 has displacement and rotary freedom, the elongation or contracting that movable deflector 2 passes through hydraulic numerical control telescopic rod 6
It is short and realize rotation to adjust angle.Movable deflector 2 is connect by industrial heavy hinge 5 with fixed deflector 4, and fixation is led
Flowing plate 4 is welded and fixed by fixed plate 3 and fish mouth framework.
Two movable deflectors 2 in Fig. 1 b can be used alone, so that bridge is in optimum pneumatic state.
Movable deflector 2 and Active central steadying plate 14 without using in the case of can by rotate corresponding angle into
Row collapses, and improves its service life
Embodiment two：
The overall structure figure of embodiment two is as shown in Figure 2 a, and regulating mechanism structure chart is as shown in Figure 2 b；
Embodiment two is identical as the basic principle of embodiment one, and signal transmission is with accessory collaborative path：At wind environment detection
Manage 7 → hydraulic numerical control of device telescopic rod 6 → movable deflector 2 → angular transducer, 16 → wind environment measurement processor 7；Wind environment is examined
It surveys at processor 7 → central hydraulic numerical control telescopic rod 15 → Active central steadying plate 14 → angular transducer, 16 → wind environment detection
Device 7 is managed, the specific connection and operation principles between each accessory are as in the first embodiment, repeat no more.
The regulating mechanism includes rolling bearing screens outer shroud 8, rolling bearing inner ring 9 and rolling bearing rotation axis 10, rotation
Bearing screens outer shroud 8 is the annular solid of class semicircle, and rolling bearing inner ring 9 is loop configuration, rolling bearing inner ring 9 and rolling bearing
Rotation axis 10 limits in rolling bearing screens outer shroud 8, the rotation in rolling bearing screens outer shroud 8 of rolling bearing inner ring 9, rotation
Bearing screens outer shroud 8 is fixed at the same side end of fish mouth upper steel plate 101 and fish mouth lower steel plate 102, rolling bearing inner ring 9
In in rolling bearing screens outer shroud 8, rolling bearing rotation axis 10 be located at rolling bearing screens outer shroud 8 and rolling bearing inner ring 9 it
Between, the activity deflector 2 is exposed to mounted on rolling bearing inner ring 9 on the part outside rolling bearing screens outer shroud 8, the work
Dynamic that hydraulic numerical control telescopic rod 6 is provided between deflector 2 and fish mouth lower steel plate 102, hydraulic numerical control telescopic rod 6 is led with activity respectively
Flowing plate 2 and fish mouth lower steel plate 102 are hinged, and specifically, embodiment 2 is by bearing device come support activities deflector 2
Rotation, and play the role of screens to movable deflector 2.Bearing device is by rolling bearing screens outer shroud 8, rolling bearing inner ring
9,10 three parts of rolling bearing rotation axis form.Rolling bearing screens outer shroud 8 and fish mouth upper steel plate 101 and fish mouth lower steel plate 102
End is welded, and fixed entire rolling bearing accessory is played the role of, and rolling bearing inner ring 9 is welded with movable deflector 2
Fixation is connect, is rotated jointly with movable deflector 2, rolling bearing rotation axis 10 is several rotation pipes or ball, plays support and turns
The effect of dynamic bearing screens outer shroud 8 and 9 coordination operation of rolling bearing inner ring, the length that central controller elongates or shortens needs
Signal transmission is elongated or shortened to hydraulic numerical control telescopic rod 6, control hydraulic numerical control telescopic rod 6, with drive activity deflector 2 and is turned
The 9 one activity of dynamic bearing inner ring.
Embodiment three：
The overall structure figure of embodiment three is as shown in Figure 3a, and the detail structure chart of rotatable deflector is as shown in Figure 3b；
The accessory that embodiment three uses additionally uses embodiment one and reality other than 2 Active central steadying plate 14 of movable deflector
The wind environment measurement processor 7 used in example two, hydraulic numerical control telescopic rod 6, angular transducer 16 are applied, link between each accessory,
Running and signal transmission path principle are identical as implementation one and implementation two, repeat no more.
The activity deflector 2 is through the gap between fish mouth upper steel plate 101 and fish mouth lower steel plate 102, movable deflector 2
It is flexible that hydraulic numerical control is provided between end and fish mouth lower steel plate 102 in fish mouth upper steel plate 101 and fish mouth lower steel plate 102
Bar 6, hydraulic numerical control telescopic rod 6 is hinged with movable deflector 2 and fish mouth lower steel plate 102 respectively, the side of hydraulic numerical control telescopic rod 6
Block board 11 for fixing is installed, the end of the fish mouth upper steel plate 101 or the end of fish mouth lower steel plate 102 are led with activity
The part that flowing plate 2 contacts is provided with abrasive rubber 12, and specifically, hydraulic numerical control telescopic rod 6 is mounted on fish mouth by embodiment three
In framework, screens is carried out by block board 11 and is fixed, the upper end of hydraulic numerical control telescopic rod 6 and one end of movable deflector 2 are cut with scissors
It connects, the swing of movable deflector 2 is realized by elongating or shortening for hydraulic numerical control telescopic rod 6, with turning for adjusting activity deflector 2
Dynamic angle.Wherein, sliding groove, portable propelling deflector 2 can be disposed when not in use, card to be passed through on fish mouth lower steel plate 102
The rotatable engagement of position plate 11 and hydraulic numerical control telescopic rod 6 collapses movable deflector 2, with making for raising activity deflector 2
Use the service life.
In the other end of fish mouth upper steel plate 101 and fish mouth lower steel plate 102, using abrasive rubber 12 come Coordinating Activity water conservancy diversion
Spin friction cooperation between 102 end of plate 2 and fish mouth lower steel plate, abrasive rubber 12 have certain rigidity, intensity, antifatigue
Property, wherein dead weight of the fish mouth lower steel plate 102 due to undertaking movable deflector 2, the abrasive rubber installed on fish mouth lower steel plate 102
12 rigidity of the abrasive rubber 12 with bigger than being installed on fish mouth upper steel plate 101.
Abrasive rubber 12 is fixed by screens peg on 102 end of fish mouth upper steel plate 101 and fish mouth lower steel plate, is risen
To the effect detachably replaced, it is enterprising in fish mouth upper steel plate 101 and fish mouth lower steel plate 102 that screens peg can be prefabricated into screw form
Row more easily installation is fixed
It is both provided with angular transducer 16 on the activity deflector 2 and on Active central steadying plate 14, to movable deflector 2
Upper and Active central steadying plate 14 carries out real-time rotational angle detection, and will detect signal transmission to central controller, carries out
Signal is checked, it is ensured that active control system forms signal circuit, can adjust in real time to working condition that is accurate, stablizing.
By taking embodiment one as an example, control method is as follows：
A kind of control method for the active control system improving Large Span Bridges wind resistance, includes the following steps：
Step 1：Wind environment measurement processor 7 monitors the wind angle of attack environment residing for Large Span Bridges, wind environment detection process in real time
Central controller is installed inside device 7,；
Step 2：For wind environment measurement processor 7 by the wind angle of attack data transfer monitored to central controller, central controller is logical
Cross what embedded angle exchange program to be rotated wind angle of attack data conversion at movable deflector 2 and Active central steadying plate 14
Angle-data, angle-data is converted into hydraulic numerical control telescopic rod 6 again for central controller and central hydraulic numerical control telescopic rod 15 divides
The length data elongated or shortened is not needed；
Step 3：Central controller sends out instruction, hydraulic numerical control to hydraulic numerical control telescopic rod 6 and central hydraulic numerical control telescopic rod 15
6 driving activity deflector 2 of telescopic rod rotates, and central hydraulic numerical control telescopic rod 15 drives Active central steadying plate 14 to rotate；
Step 4：After the completion of movable deflector 2 and Active central steadying plate 14 rotate, pass through the angle installed on movable deflector 2
The angular transducer 16 installed on degree sensor 16 and Active central steadying plate 14 detects actual rotation angle respectively, and will be real
Border rotational angle feeds back to central controller and is proofreaded, and forms signal circuit, ensures that device stablizes running.
As soon as the control method of embodiment two and embodiment three is identical with embodiment, do not repeat herein.
This control system can be as needed used in the building and engineering that skyscraper etc. has wind resistance demand, as follows：
Example IV：
As further design of the invention, this active control system is applied to the example of bridge tower.Fig. 4 a are surrounding band
The cross-sectional view for having the square bridge tower of chamfering adds rotatable movable deflector 2, activity in four corner areas of bridge tower
Hydraulic numerical control telescopic rod is provided between 2 side of deflector and bridge tower structure, wind environment measurement processor 7 controls hydraulic numerical control and stretches
Contracting bar elongates or shortens, and can successfully manage the bridge tower vibration problem that the variation of different wind environments is brought.Fig. 4 b are bridge tower corner region
The detail structure chart in domain, the thin portion constructional device construction and principle all same of four corners of bridge tower, therefore only select a corner region
It is illustrated for domain.
Rotatable deflector device in Fig. 4 b include movable deflector 2, industrial heavy hinge, hydraulic numerical control telescopic rod,
Angular transducer 16, the device receive the prediction signal of the wind environment measurement processor 7 on floorings, pass through angle exchange program
Calculating hydraulic numerical control telescopic rod needs the length that elongates or shortens and deflector to need the angle rotated, real-time starter,
And the rotation of movable deflector 2 is realized by elongating or shortening for hydraulic numerical control telescopic rod, by angular transducer 16 to work
The rotational angle of dynamic deflector 2 measures, and sends out signal and forms the signal circuit being closed with central controller, ensures that device is stablized
Running.
Movable deflector 2 without using in the case of can be collapsed by rotating corresponding angle, increase its use
Service life.
Embodiment five：
Embodiment 5 is the example that this active control system is applied to that skyscraper etc. has the buildings such as windproof demand.Fig. 5 a are height
The schematic diagram of the cross section installation activity deflector of layer building, it is assumed that the cross section of skyscraper is rectangle, the work of four corners
Dynamic deflector device and operation principles all same, therefore the thin portion structural schematic diagram of one of corner is only selected to illustrate, such as
Shown in Fig. 5 b.
In Fig. 5 b, movable deflector 2 is by industrial heavy hinge connection in skyscraper wall edge, movable deflector 2
Hydraulic numerical control telescopic rod is set between wall, and wind environment measurement processor 7 may be mounted at the balcony or dew of skyscraper
It place, to detect wind environment in real time and to transmit signal, the wind number of detection is passed to it by wind environment measurement processor 7
Wind environment is scaled hydraulic numerical control by its embedded angle exchange program and stretched by internal central processing unit, central processing unit
Bar needs the length elongated or shortened and movable deflector 2 to need the angle rotated, and length signals are transferred to movable hydraulic pressure
Numerical control telescopic rod, hydraulic numerical control telescopic rod are mounted on by elongating or shortening the rotation of corresponding length realization activity deflector 2
The rotational angle of 16 detection activity deflector 2 of angular transducer on movable deflector 2, transmits a signal to central processing unit,
Signal circuit is formed, ensures the operation that device is adjusted optimally and stablizes.
Movable deflector 2 is installed by industrial heavy hinge with skyscraper in real-time example 5.
Movable deflector 2 without using in the case of can be collapsed by rotating corresponding angle, increase its use
Service life.
The present invention is using environment such as the wind angles of attack residing for wind environment measurement processor the real time measure bridge, at wind environment detection
Reason device can be fixedly mounted on floorings, in order to repair and operate.
Wind environment measurement processor is by the different wind environment signal transmissions of measurement to central controller, by its embedded angle
Exchange program calculates hydraulic numerical control telescopic rod and the length elongated or shortened and deflector, central stabilizer needs is needed to rotate
Angle, hydraulic numerical control telescopic rod turn to certain angle by elongating or shortening control deflector and central stabilizer, make gas
It can effectively shunt, stream, ensure that bridge structure is in optimum pneumatic state.Wherein, central controller, angle exchange program, angle
Degree sensor can form system by programmed configurations by cooperate, to improve device operational paradigm.
It is steady in deflector and center preferably to carry out control and adjustment in real time to the rotation of deflector and central stabilizer
Setting angle sensor on fixed board, the angle that angular transducer is rotated in real time by measuring deflector and central stabilizer, will believe
It number is transferred to central controller, carries out signal verification, to form complete signal circuit, on the one hand can be directed to the wind environment of variation
To adjust the rotational angle of deflector and central stabilizer at any time, the working condition that device is stablized on the other hand can guarantee
Above-described specific implementation mode has carried out further in detail the purpose of the present invention, technical solution and advantageous effect
Illustrate, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to restrict the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the present invention
Within the scope of shield.
Claims (5)
1. a kind of active control system improving Large Span Bridges wind resistance, it is characterised in that：Including being arranged in long-span bridge
The fish mouth upper steel plate of beam side（101）With fish mouth lower steel plate（102）, the fish mouth upper steel plate（101）One end connects long-span bridge
The upper floorings edge of beam, fish mouth lower steel plate（102）One end connects the lower floorings edge of Large Span Bridges, fish mouth upper steel plate
（101）The other end and fish mouth lower steel plate（102）The other end it is close to each other, fish mouth upper steel plate（101）With fish mouth lower steel plate
（102）Between be provided with towards outside movable deflector（2）And control activity deflector（2）Rotate movable adjusting machine
Structure；Wind environment measurement processor is provided on the floorings of the Large Span Bridges（7）；On the floorings of the Large Span Bridges
It is additionally provided with a pair of central hinge（13）, two central hinges（13）Between be provided with Active central steadying plate（14）, the center
Hinge（13）In folded state, part fixation is attached on floorings, and another part is attached to Active central steadying plate（14）
On, the Active central steadying plate（14）Central hydraulic numerical control telescopic rod is additionally provided between floorings（15）, central hydraulic
Numerical control telescopic rod（15）Respectively with Active central steadying plate（14）It is hinged with floorings；The activity deflector（2）It is upper and living
Dynamic central stabilizer（14）On be both provided with angular transducer（16）.
2. a kind of active control system improving Large Span Bridges wind resistance according to claim 1, it is characterised in that：
The regulating mechanism includes fixed plate（3）, fixed plate（3）Positioned at fish mouth upper steel plate（101）With fish mouth lower steel plate（102）Between,
Across fish mouth upper steel plate（101）With fish mouth lower steel plate（102）Between gap setting have fixed deflector（4）, fixed deflector
（4）One end be fixed on fixed plate（3）On, the upper and lower surface of the other end is respectively provided with an industrial heavy hinge（5）, two industry
Heavy hinge（5）The upper movable deflector of each installation one（2）, wherein the movable deflector by top（2）With fish mouth upper steel plate
（101）Between set there are one hydraulic numerical control telescopic rod（6）, the hydraulic numerical control telescopic rod（6）Respectively with movable deflector（2）And fish
Mouth upper steel plate（101）It is hinged, lean on the movable deflector of lower part（2）With fish mouth lower steel plate（102）Between set there are one hydraulic numerical control
Telescopic rod（6）, the hydraulic numerical control telescopic rod（6）Respectively with movable deflector（2）With fish mouth lower steel plate（102）It is hinged.
3. a kind of active control system improving Large Span Bridges wind resistance according to claim 1, it is characterised in that：
The regulating mechanism includes rolling bearing screens outer shroud（8）, rolling bearing inner ring（9）With rolling bearing rotation axis（10）, described
Rolling bearing screens outer shroud（8）It is fixed at fish mouth upper steel plate（101）With fish mouth lower steel plate（102）Same side end, rotation
Bearing inner ring（9）Positioned at rolling bearing screens outer shroud（8）It is interior, rolling bearing rotation axis（10）Positioned at rolling bearing screens outer shroud
（8）With rolling bearing inner ring（9）Between, the activity deflector（2）Mounted on rolling bearing inner ring（9）It is exposed to rolling bearing
Screens outer shroud（8）On outer part, the activity deflector（2）With fish mouth lower steel plate（102）Between be provided with hydraulic numerical control and stretch
Contracting bar（6）, hydraulic numerical control telescopic rod（6）Respectively with movable deflector（2）With fish mouth lower steel plate（102）It is hinged.
4. a kind of active control system improving Large Span Bridges wind resistance according to claim 1, it is characterised in that：
The activity deflector（2）Through fish mouth upper steel plate（101）With fish mouth lower steel plate（102）Between gap, movable deflector（2）
Positioned at fish mouth upper steel plate（101）With fish mouth lower steel plate（102）Interior end and fish mouth lower steel plate（102）Between be provided with hydraulic pressure number
Control telescopic rod（6）, hydraulic numerical control telescopic rod（6）Respectively with movable deflector（2）With fish mouth lower steel plate（102）It is hinged, hydraulic pressure number
Control telescopic rod（6）Side block board for fixing is installed（11）, the fish mouth upper steel plate（101）End or fish mouth under
Steel plate（102）End and movable deflector（2）The part of contact is provided with abrasive rubber（12）.
5. a kind of control method of active control system improving Large Span Bridges wind resistance as claimed in claim 2,
It is characterized in that, includes the following steps：
Step 1：Wind environment measurement processor（7）Wind angle of attack environment residing for monitoring Large Span Bridges in real time, at wind environment detection
Manage device（7）Inside is equipped with central controller；
Step 2：Wind environment measurement processor（7）By the wind angle of attack data transfer monitored to central controller, central controller
By embedded angle exchange program by wind angle of attack data conversion at movable deflector（2）With Active central steadying plate（14）It is wanted
Angle-data is converted into hydraulic numerical control telescopic rod by the angle-data of rotation, central controller again（6）It is stretched with central hydraulic numerical control
Contracting bar（15）It is respectively necessary for the length data elongated or shortened；
Step 3：Central controller is to hydraulic numerical control telescopic rod（6）With central hydraulic numerical control telescopic rod（15）Send out instruction, hydraulic pressure
Numerical control telescopic rod（6）Driving activity deflector（2）Rotation, central hydraulic numerical control telescopic rod（15）Drive Active central steadying plate
（14）Rotation；
Step 4：Movable deflector（2）With Active central steadying plate（14）After the completion of rotation, pass through movable deflector（2）Upper peace
The angular transducer of dress（16）And Active central steadying plate（14）The angular transducer of upper installation（16）Detection is practical respectively turns
Dynamic angle, and actual rotation angle feed-back is proofreaded to central controller.
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| CN201810497199.1A CN108755390B (en) | 2018-05-22 | 2018-05-22 | Active control system and control method for improving wind resistance of long-span bridge |
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| CN201810497199.1A CN108755390B (en) | 2018-05-22 | 2018-05-22 | Active control system and control method for improving wind resistance of long-span bridge |
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| CN109916580A (en) * | 2019-03-12 | 2019-06-21 | 重庆大学 | What a kind of wind resistance of steel structure bridge was adjusted automatically supplies control system |
| CN110241739A (en) * | 2019-06-28 | 2019-09-17 | 中铁七局集团有限公司 | Hydraulic climbing formwork digital intelligent control platform |
| CN110644350A (en) * | 2019-08-23 | 2020-01-03 | 深圳大学 | Bridge movable pneumatic measure device based on inertial volume vibration reduction and control method thereof |
| CN111101436A (en) * | 2020-01-14 | 2020-05-05 | 中铁二院工程集团有限责任公司 | Bridge wind barrier device and using method thereof |
| CN111119031A (en) * | 2020-01-14 | 2020-05-08 | 中铁二院工程集团有限责任公司 | Device for inhibiting bridge flutter and using method thereof |
| CN111172860A (en) * | 2020-01-14 | 2020-05-19 | 中铁二院工程集团有限责任公司 | Bridge flutter suppression device and application method thereof |
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| CN112012094A (en) * | 2020-09-22 | 2020-12-01 | 同济大学 | Angle-adjustable flow restraining plate device suitable for bridge deck |
| CN112064488A (en) * | 2020-07-20 | 2020-12-11 | 深圳大学 | Pneumatic adjusting structure for bridge vortex vibration |
| CN112458881A (en) * | 2020-11-30 | 2021-03-09 | 大连理工大学 | Semi-active device for controlling bridge flutter |
| CN112942066A (en) * | 2021-01-12 | 2021-06-11 | 西南交通大学 | Mountain bridge wind-resistant stabilizing plate with adjustable form and installation method |
| CN113373794A (en) * | 2021-06-18 | 2021-09-10 | 中铁大桥勘测设计院集团有限公司 | Vortex vibration suppression structure suitable for large-span bridge and design method thereof |
| CN114369995A (en) * | 2022-02-21 | 2022-04-19 | 中南大学 | Flexible vortex generator for inhibiting bridge vortex vibration |
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| CN111441234B (en) * | 2020-03-27 | 2021-04-20 | 中南大学 | Deformable air nozzle for inhibiting wind-induced vibration of bridge |
| CN111441234A (en) * | 2020-03-27 | 2020-07-24 | 中南大学 | Deformable air nozzle for inhibiting wind-induced vibration of bridge |
| CN112064488A (en) * | 2020-07-20 | 2020-12-11 | 深圳大学 | Pneumatic adjusting structure for bridge vortex vibration |
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| CN114369995B (en) * | 2022-02-21 | 2022-11-04 | 中南大学 | Flexible vortex generator for inhibiting bridge vortex vibration |
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