CN107700335A - A kind of rotatable blades guiding device for box girder bridge of slotting - Google Patents
A kind of rotatable blades guiding device for box girder bridge of slotting Download PDFInfo
- Publication number
- CN107700335A CN107700335A CN201710887475.0A CN201710887475A CN107700335A CN 107700335 A CN107700335 A CN 107700335A CN 201710887475 A CN201710887475 A CN 201710887475A CN 107700335 A CN107700335 A CN 107700335A
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- CN
- China
- Prior art keywords
- guide vane
- bridge
- group
- water conservancy
- conservancy diversion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
Abstract
The present invention discloses a kind of rotatable blades guiding device for box girder bridge of slotting, including blade water conservancy diversion single-piece；Blade water conservancy diversion single-piece includes guide vane group, rotating shaft group, rotational power source and to form entirety and the frame being easily installed at bridge central slot for assembling the parts such as guide vane；Rotational power source provides rotational power for the rotary shaft in rotating shaft group.Apply the technical scheme of the present invention, effect is：Blade water conservancy diversion single-piece is placed at the fluting of bridge, does not influence the visual demand of operation；The rotating shaft group of blade water conservancy diversion single-piece is controlled by rotational power source and rotated, so as to drive guide vane group to realize synchronous rotary, the anglec of rotation and angular velocity of rotation of guide vane are controlled, the airflow characteristic at central slot can be improved, meet the demand for not influenceing the Flutter Performance of bridge while suppressing whirlpool and shaking；The rotational angle of guide vane can carry out appropriate adjusting and optimizing in real time, have preferable adjustability or controllability in actually runing, improve its adaptability.
Description
Technical field
The present invention relates to bridge technology field, is filled more particularly to a kind of rotatable blades water conservancy diversion for box girder bridge of slotting
Put.
Background technology
With the continuous improvement of long-span bridge beam span, the wind resisting stability problem of bridge is more and more prominent.Bridge Sections
Central slot obtains more and more in practice as a kind of control measure that can effectively improve structure flutter instability performance in engineering
More applications, but it is following the problem of also occur：Large span central slot box bridge is when wind speed is little, it may appear that
" Vortex-excited vibration " phenomenon, and larger " Vortex-excited vibration " amplitude is produced, bridge normal operation and road-ability are caused larger
Influence.Influence of the airflow characteristic to " Vortex-excited vibration " at central slot be can not ignore, and " be swashed altogether in whirlpool to suppress bridge
Shake " generation or reduce its amplitude, and its good Flutter Performance can be kept, it is contemplated that set on bridge and appropriate disturb whirlpool dress
Put.
The pneumatic control mode for being used to solve bridge " Vortex-excited vibration " in the prior art has a lot, such as：
The utility model of Application No. 201621413540.3 discloses a kind of shakes control for Separated Twin-box Girder bridge whirlpool
The air nozzle structure of system, the cross section of the air nozzle structure mainly by one it is trapezoidal with a triangle sets into trapezoidal bottom and bridge
Beam girder connects, and the most short side of trapezoidal upper bottom and triangle connects.As further improvement of the utility model, the triangle
For right angled triangle, the hypotenuse of right angled triangle is located at the lower section of long right-angle side.Further, the air nozzle structure is by thin-walled
Steel case is formed.
The utility model patent of Application No. 200920113878.0 discloses a kind of to shake control for separative box-girder bridge beam whirlpool
The deflector device of system, central groove both sides set symmetrical deflector respectively, and the position of deflector be in skew web plate and
Below bottom plate, deflector is made up of level board, oblique plate and support block；Level board is arranged on below bottom plate, and it is parallel with bottom plate
And be connected by support block with bottom plate, the oblique plate being connected with level board is arranged on below skew web plate and parallel with skew web plate.
The utility model patent of Application No. 201320828934.5 discloses a kind of suppression for the control of bridge vortex-induced vibration
Vibration plate, it includes lower pillar stand and upper pillar stand, along bridge to being evenly equipped with some curved lower pillar stands on the side bar of pontic, under each
Upper pillar stand is respectively and fixedly provided with column, pipe is installed between any two adjacent lower pillar stands and steel bar forms maintaining roadway railing；Appoint
Anticipate and the steel barrier bar of multiple rows of half elliptic is installed between two adjacent upper pillar stands.
Application No. 201610391215.X patent applications are disclosed one kind and Longspan Bridge are carried out using vertical shaft fan
Whirlpool shakes the method for control, is specifically：Vertical shaft fan is set in the girder bottom of bridge, made using vertical shaft fan in incoming wind
Upset the vortex shedding of main beam section rule with caused horizontal wake flow after rotation.
In addition, it is also other to be used for solving the mode of " Vortex-excited vibration ", but current mode more or less exist with
Lower defect：(1) visual field walked or travelled on bridge may be influenceed；(2) device water conservancy diversion form is relatively fixed, to built bridge
The change of actual wind-induced vibration lacks adjustability or controllability；(3) device connected mode is not firm enough, easily destroyed, uses the longevity
Order short.
Therefore, it can significantly reduce the influence of " Vortex-excited vibration " there is an urgent need to design one kind, do not interfere with and walked on bridge
Or travel the visual field, there is the device of preferable adjustability or controllability and service life length to solve existing skill in actually runing
Problem present in art.
The content of the invention
The present invention provide one kind can significantly reduce the influence of " Vortex-excited vibration ", do not interfere with bridge walk or travel regard
The rotatable leaf of the box girder bridge wild, with preferable adjustability or controllability and service life length in actually runing that is used to slot
Piece guiding device, concrete technical scheme are as follows：
A kind of rotatable blades guiding device for box girder bridge of slotting, including a blade water conservancy diversion single-piece or at least two
The individual blade water conservancy diversion single-piece being set up in parallel；
The blade water conservancy diversion single-piece includes guide vane group, rotating shaft group and rotational power source, the guide vane group bag
Include at least a piece of guide vane；The rotating shaft group includes at least one and is used to drive the rotation that the guide vane is rotated
Axle；The rotational power source provides rotational power for the rotary shaft in the rotating shaft group.
Preferable in above technical scheme, the blade water conservancy diversion single-piece also includes frame, and the frame is polygonal frame
Structure, the guide vane group are located in the cavity of the frame, and the guide vane in the guide vane group pass through it is described
Rotary shaft is movably arranged on the frame.
Preferable in above technical scheme, the guide vane group includes at least two panels guide vane, the rotating shaft group bag
Include and correspond the rotary shaft set with the guide vane；The axial direction of the length direction of the guide vane and the rotary shaft
Direction be arranged in parallel with the y direction of bridge；
Minimum spacing between guide vane described in adjacent two panels is 1-10 millimeters.
Preferable in above technical scheme, multiple guide vanes are set up in parallel in the frame, positioned at end
Guide vane described in two panels to the minimum range between the inwall of the frame be 1-10 millimeters.
Preferable in above technical scheme, the rotational power source includes driving belt and the control driving belt enters
The control unit that action is made；
All rotary shafts are connected with the driving belt, and the rotation is driven by the transmission of the driving belt
Axle is rotated, and then drives the guide vane synchronous rotary.
Preferable in above technical scheme, the control unit is PLC；
The working face being in contact in the driving belt with the rotary shaft is provided with multiple boss, the rotary shaft along its
Circumferencial direction is provided with multiple necks to match with the boss.
It is preferable in above technical scheme, in addition to for sensing the wind speed measuring device of wind speed change, the wind speed is surveyed
Amount device is located at the place windward of bridge.
Preferable in above technical scheme, the wind speed measuring device is wind speed inductor, the wind speed inductor and institute
State control unit connection.
It is preferable in above technical scheme, one or more blade water conservancy diversion single-pieces are set at each fluting of bridge.
Apply the technical scheme of the present invention, effect is：
1st, do not interfere with and the visual field is walked or travelled on bridge, be specifically：The rotatable blades guiding device of the present invention is arranged on
Slot at the fluting of box girder bridge, installation and removal are convenient, and do not interfere with and the visual field is walked or travelled on bridge.
2nd, there is preferable adjustability or controllability in actually runing, is specifically：Blade water conservancy diversion single-piece includes guide vane
Group, rotating shaft group and rotational power source, the combination in rotational power source is combined by rotating shaft, it is possible to achieve the synchronous rotation of guide vane
Turn, the anglec of rotation and angular velocity of rotation of guide vane are controlled, meet under different application environment (especially different wind-force
Condition) demand, and actually run in carry out appropriate adjusting and optimizing, actually run in there is preferable adjustability or controllable
Property, improve its adaptability.
3rd, service life is grown, and is specifically：Whole blade water conservancy diversion single-piece uses modular construction in the present invention, can realize just
In installation and removal, and can greatly enhances the steadiness of structure, extends its service life；The design of frame, for making water conservancy diversion leaf
The parts such as piece assemble to form entirety and be easily installed at bridge central slot, more strengthen the Stability Analysis of Structures of blade water conservancy diversion single-piece
Property, and by the way that frame and bridge are fixed using connector, you can the fixation of whole blade water conservancy diversion single-piece and bridge is realized,
It is easy for installation and removal.
4th, it can significantly reduce the influence of " Vortex-excited vibration ", be specifically：Guide vane group includes at least two in the present invention
Piece guide vane, the rotating shaft group include corresponding the rotary shaft set with the guide vane；The length of the guide vane
Y direction of the axial direction of degree direction and the rotary shaft with bridge be arranged in parallel.The quantity of guide vane and rotary shaft
Selection and set-up mode, both can ensure that rotary shaft drove guide vane to be rotated well, and and can utilizes guide vane
Fluid flow characteristics at " water conservancy diversion " and " cutting " improved effect central slot, satisfaction avoid being formed at groove centre and wake flow
Big air-flow vortex and make air-flow obtain " dredging " and the double action of " redistribution ", both ensured that it suppressed " Vortex-excited vibration "
Effect, it can also keep even improving its Flutter Performance.Minimum spacing between guide vane described in adjacent two panels is 1-10 millimeters
(preferably 2-5 millimeters), it is ensured that number of guide vanes can as far as possible meet stuffy during closure state and freely be rotated
Demand.
5th, heretofore described rotational power source includes the control that driving belt and the control driving belt are acted
Part processed, all rotary shafts are connected with the driving belt.The rotation is driven by the transmission of the driving belt
Axle is rotated, and then drives the guide vane synchronous rotary；The control unit is PLC, is easy to control.Transmission
Belt is provided with multiple boss, and the rotary shaft is provided with multiple necks along its circumferencial direction, is easy to feed belt and rotary shaft
Matching, meets transmission demand.
6th, also include being used for the wind speed measuring device for sensing wind speed change in the present invention, the wind speed measuring device is located at bridge
The place windward of beam.The setting of wind speed measuring device, it is easy to detect the wind speed of bridge local environment, is easy to in blade water conservancy diversion single-piece
The control of the anglec of rotation of guide vane, it is practical.Wind speed measuring device is wind speed inductor, the wind speed inductor and institute
Control unit connection is stated, is easy to implement automatic detection and control.
Brief description of the drawings
Fig. 1 is that the overall structure of the rotatable blades guiding device for box girder bridge of slotting in the embodiment of the present invention 1 is illustrated
Figure；
Fig. 2 is the overall structure diagram of blade water conservancy diversion single-piece in Fig. 1；
Fig. 3 is left view of the blade water conservancy diversion single-piece when guide vane is rotated by 90 ° in Fig. 2；
Fig. 4 is the annexation Local map between driving belt and rotary shaft in Fig. 1；
Fig. 5 is speed vector figure when not installing the embodiment of the present invention；
Fig. 6 is vorticity figure when not installing the embodiment of the present invention；
Fig. 7 is the speed vector figure that guide vane is rotated by 90 ° under 10m/s wind speed of embodiment 1；
Fig. 8 is the vorticity figure that the guide vane under 10m/s wind speed of embodiment 1 is rotated by 90 °；
Fig. 9 is the speed vector figure that the guide vane under 10m/s wind speed of embodiment 1 rotates 45 °；
Figure 10 is the vorticity figure that the guide vane under 10m/s wind speed of embodiment 1 rotates 45 °；
Wherein：1st, blade water conservancy diversion single-piece, 1.1, guide vane group, 1.11, guide vane, 1.2, rotating shaft group, 1.21, rotate
Axle, 1.3, rotational power source, 1.31, feed belt, 1.32, control unit, 1.4, frame, 2, wind speed measuring device, 3, bridge；
A, boss, B, neck.
Embodiment
Embodiments of the invention are described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention can be more easy to
In being readily appreciated by one skilled in the art, apparent clearly defined so as to be made to protection scope of the present invention.
Embodiment 1：
A kind of rotatable blades guiding device for box girder bridge of slotting, Fig. 1-Fig. 4 is referred to, including it is multiple at each fluting
The blade water conservancy diversion single-piece 1 and wind speed measuring device 2 being set up in parallel, eight, and two neighboring blade water conservancy diversion list are illustrated in Fig. 1
Part 1 is separate setting.
The structure of the blade water conservancy diversion single-piece 1 refers to Fig. 2-Fig. 4, specifically includes guide vane group 1.1, rotating shaft group 1.2, turns
Dynamic power source 1.3 and frame 1.4, Details as Follows：
The guide vane group 1.1 includes number of guide vanes 1.11 (illustrating 12 in Fig. 2 and Fig. 3), multiple
The guide vane 1.11 is set up in parallel and (can arranged herein using mode from left to right), guide vane 1.11 described in adjacent two panels
Between minimum spacing be 1-10 millimeters, preferably 2-5 millimeters；Positioned at the two panels institute of end (can be herein high order end and low order end)
It is 1-10 millimeters to state the minimum range that guide vane 1.11 is arrived between the inwall of the frame 1.4.Ensure number of guide vanes energy
It is enough to meet stuffy during closure state and the needs of freely being rotated as far as possible.
The rotating shaft group 1.2 includes 12 and is used to drive the rotary shaft 1.21 that the guide vane 1.11 is rotated,
Rotary shaft and guide vane, which correspond, to be set, and guide vane 1.11 is movably arranged on the frame 1.4 by rotary shaft 1.21
It is upper that (guide vane can be in positive and negative 90 degree (- 90 ° to+90 °) scope internal rotations, so as to change the fluidised form and whirlpool at fluting
Dropping structure, by certain orientation optimization, so as to play pneumatic control effect).
The rotational power source 1.3 is that the rotary shaft 1.21 in the rotating shaft group 1.2 provides rotational power, and it includes transmission
The control unit 1.32 that belt 1.31 and the control driving belt 1.31 are acted, all rotary shafts 1.21 with
The driving belt 1.31 connects, and drives the rotary shaft 1.21 to be rotated by the transmission of the driving belt 1.31, enters
And drive the synchronous rotary of guide vane 1.11.The 1.32 preferred PLC of control unit.The driving belt and turn
Matching way between moving axis have it is a variety of, herein preferably：It is in contact in the driving belt 1.31 with the rotary shaft 1.21
Working face is provided with multiple boss A, and the rotary shaft 1.21 is provided with multiple cards to match with the boss A along its circumferencial direction
Groove B, structure are simplified, and can realize transmission well.
The frame 1.4 is using polygonal frame structure (preferred quadrilateral structure herein), the guide vane group 1.1
In the cavity of the frame 1.4.
The longitudinal axis side of the length direction of the guide vane 1.11 and the axial direction of the rotary shaft 1.21 with bridge
To be arrangeding in parallel；The frame is connected by removable connector with bridge, is easily installed and is dismantled.It is preferred that：The frame 1.4
Length and width can suitably be selected with the size of central slot, the width that the height of the frame 1.4 is more than guide vane is small
Height at bridge central slot.
The preferred wind speed inductor of wind speed measuring device 2, the wind speed inductor are connected with the control unit 1.32.
The wind speed measuring device 2 is located at the place windward of bridge, and installation site can be selected according to the actual requirements.
Using the rotatable blades guiding device of the box girder bridge that is used to slot of the present embodiment, it is specifically：Sensed according to wind speed
The wind speed size of device sensing determines the anglec of rotation of flow deflector, so as to changing the fluid flow characteristics at central slot.Work as wind
When speed is little, guide vane can be made to rotate to optimal angle, the mutual flowing of the simultaneously upper downstream in slot segmentation center can be obstructed, from
Without forming big vortex in groove centre, " Vortex-excited vibration " amplitude can be reduced；When wind speed is larger, wind speed is close to flutter
Critical wind velocity, guide vane anglec of rotation absolute value is preferably 45 ° -90 °, makes ventilative rate larger, the air-flow being easy at central slot
" evacuation ", so as to ensure higher critical wind speed of flutter.
The present invention is applied to the Bridge Sections of Longspan Bridge central slot.By having adjusted the anglec of rotation of guide vane both
" Vortex-excited vibration " amplitude of Longspan Bridge central slot can be reduced, and does not reduce the critical wind speed of flutter of bridge.
As shown in Figure 5 and Figure 6, when not installing blade guiding device at bridge fluting, the vortex shedding of bridge is more apparent
And the de- energy in whirlpool at fluting is notable.As shown in Fig. 7-Figure 10, at bridge fluting install blade guiding device when, no matter blade
45 ° of rotation or the regularity of 90 ° of vortex sheddings that can all weaken bridge wake flow, and whirlpool is taken off energy dropoff, at 90 ° especially
Substantially.
Using the technical scheme of the present embodiment, effect is：Blade water conservancy diversion single-piece is placed at the fluting of bridge, does not influence to run
Visual demand；The rotating shaft group of blade water conservancy diversion single-piece is controlled by rotational power source and rotated, same so as to drive guide vane group to realize
Step rotation, is controlled to the anglec of rotation and angular velocity of rotation of guide vane, can improve the air current flow at central slot
Characteristic, meet the demand for not influenceing the Flutter Performance of bridge while suppressing whirlpool and shaking；The rotational angle of guide vane can be real-time
Appropriate adjusting and optimizing is carried out, there is preferable adjustability or controllability in actually runing, improve its adaptability.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (9)
- A kind of 1. rotatable blades guiding device for box girder bridge of slotting, it is characterised in that：Including a blade water conservancy diversion single-piece Or at least two blade water conservancy diversion single-pieces (1) being set up in parallel (1)；The blade water conservancy diversion single-piece (1) includes guide vane group (1.1), rotating shaft group (1.2) and rotational power source (1.3), institute Stating guide vane group (1.1) includes at least a piece of guide vane (1.11)；The rotating shaft group (1.2) is used for band including at least one Move the rotary shaft (1.21) that the guide vane (1.11) is rotated；The rotational power source (1.3) is the rotating shaft group (1.2) rotary shaft (1.21) in provides rotational power.
- 2. the rotatable blades guiding device according to claim 1 for box girder bridge of slotting, it is characterised in that the leaf Piece water conservancy diversion single-piece (1) also includes frame (1.4), and the frame is polygonal frame structure, and the guide vane group (1.1) is located at In the cavity of the frame (1.4), and the guide vane (1.11) in the guide vane group (1.1) passes through the rotary shaft (1.21) it is movably arranged on the frame (1.4).
- 3. the rotatable blades guiding device according to claim 2 for box girder bridge of slotting, it is characterised in that described to lead Flowing blade group (1.1) includes at least two panels guide vane (1.11), and the rotating shaft group (1.2) includes and the guide vane (1.11) rotary shaft (1.21) set is corresponded；The length direction of the guide vane (1.11) and the rotary shaft (1.21) axial direction be arranged in parallel with the y direction of bridge；Minimum spacing between guide vane (1.11) described in adjacent two panels is 1-10 millimeters.
- 4. the rotatable blades guiding device according to claim 3 for box girder bridge of slotting, it is characterised in that Duo Gesuo State guide vane (1.11) to be set up in parallel in the frame (1.4), guide vane described in the two panels positioned at end (1.11) arrives Minimum range between the inwall of the frame (1.4) is 1-10 millimeters.
- 5. the rotatable blades guiding device of the box girder bridge that is used to slot according to claim 1-4 any one, its feature It is, the rotational power source (1.3) includes driving belt (1.31) and the control driving belt (1.31) is acted Control unit (1.32)；All rotary shafts (1.21) are connected with the driving belt (1.31), pass through the biography of the driving belt (1.31) It is dynamic to drive the rotary shaft (1.21) to be rotated, and then drive guide vane (1.11) synchronous rotary.
- 6. the rotatable blades guiding device according to claim 5 for box girder bridge of slotting, it is characterised in that the control Part (1.32) processed is PLC；The working face being in contact in the driving belt (1.31) with the rotary shaft (1.21) is provided with multiple boss (A), institute State rotary shaft (1.21) and be provided with multiple necks (B) to match with the boss (A) along its circumferencial direction.
- 7. the rotatable blades guiding device according to claim 5 for box girder bridge of slotting, it is characterised in that also include For sensing the wind speed measuring device (2) of wind speed change, the wind speed measuring device (2) is located at the place windward of bridge.
- 8. the rotatable blades guiding device according to claim 7 for box girder bridge of slotting, it is characterised in that the wind Speed measuring device (2) is wind speed inductor, and the wind speed inductor is connected with the control unit (1.32).
- 9. the rotatable blades guiding device according to claim 1 for box girder bridge of slotting, it is characterised in that bridge is every One or more blade water conservancy diversion single-pieces (1) are set at one fluting.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887475.0A CN107700335A (en) | 2017-09-27 | 2017-09-27 | A kind of rotatable blades guiding device for box girder bridge of slotting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710887475.0A CN107700335A (en) | 2017-09-27 | 2017-09-27 | A kind of rotatable blades guiding device for box girder bridge of slotting |
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| CN107700335A true CN107700335A (en) | 2018-02-16 |
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| CN201710887475.0A Pending CN107700335A (en) | 2017-09-27 | 2017-09-27 | A kind of rotatable blades guiding device for box girder bridge of slotting |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898405A (en) * | 2019-02-20 | 2019-06-18 | 深圳大学 | It is a kind of that the intelligent of seperated box beam wind shake is inhibited to adjust grid device and its method |
| CN111996902A (en) * | 2020-07-20 | 2020-11-27 | 深圳大学 | Pneumatic control structure of slotted box girder bridge |
| CN112064488A (en) * | 2020-07-20 | 2020-12-11 | 深圳大学 | Pneumatic adjusting structure for bridge vortex vibration |
| CN112900229A (en) * | 2021-01-14 | 2021-06-04 | 同济大学 | Split type case roof beam of adjustable intertroove ventilation rate |
| CN112942094A (en) * | 2021-01-27 | 2021-06-11 | 邹芳 | A check out test set for bridge bottom |
| CN113235386A (en) * | 2021-05-26 | 2021-08-10 | 长安大学 | Device and method for inhibiting vortex vibration generated by separated double-box-girder section bridge |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10325109A (en) * | 1997-05-27 | 1998-12-08 | Nkk Corp | Mechanism for preventing flutter of bridge girder |
| CN200978389Y (en) * | 2006-12-11 | 2007-11-21 | 柳州欧维姆机械股份有限公司 | Wind screening brattice |
| CN102191747A (en) * | 2011-03-25 | 2011-09-21 | 中铁大桥勘测设计院有限公司 | Adaptive tuyere of steel box girder |
| CN102505627A (en) * | 2011-11-03 | 2012-06-20 | 哈尔滨工业大学 | Suppression separation type box girder vortex induced vibration control system |
| CN203668809U (en) * | 2013-12-19 | 2014-06-25 | 西南交通大学 | Deflectors for controlling vortex-induced vibration of closed steel box girder bridge |
| CN106758774A (en) * | 2016-12-22 | 2017-05-31 | 西南交通大学 | A kind of suppression whirlpool grid device of control of being shaken for wide cut Separated Twin-box Girder bridge whirlpool |
| CN107034780A (en) * | 2017-04-13 | 2017-08-11 | 华北水利水电大学 | A kind of new bridge Vortex-excited vibration control system and its control method |
| CN207376436U (en) * | 2017-09-27 | 2018-05-18 | 中南大学 | A kind of rotatable blades guiding device for box girder bridge of slotting |
-
2017
- 2017-09-27 CN CN201710887475.0A patent/CN107700335A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10325109A (en) * | 1997-05-27 | 1998-12-08 | Nkk Corp | Mechanism for preventing flutter of bridge girder |
| CN200978389Y (en) * | 2006-12-11 | 2007-11-21 | 柳州欧维姆机械股份有限公司 | Wind screening brattice |
| CN102191747A (en) * | 2011-03-25 | 2011-09-21 | 中铁大桥勘测设计院有限公司 | Adaptive tuyere of steel box girder |
| CN102505627A (en) * | 2011-11-03 | 2012-06-20 | 哈尔滨工业大学 | Suppression separation type box girder vortex induced vibration control system |
| CN203668809U (en) * | 2013-12-19 | 2014-06-25 | 西南交通大学 | Deflectors for controlling vortex-induced vibration of closed steel box girder bridge |
| CN106758774A (en) * | 2016-12-22 | 2017-05-31 | 西南交通大学 | A kind of suppression whirlpool grid device of control of being shaken for wide cut Separated Twin-box Girder bridge whirlpool |
| CN107034780A (en) * | 2017-04-13 | 2017-08-11 | 华北水利水电大学 | A kind of new bridge Vortex-excited vibration control system and its control method |
| CN207376436U (en) * | 2017-09-27 | 2018-05-18 | 中南大学 | A kind of rotatable blades guiding device for box girder bridge of slotting |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109898405A (en) * | 2019-02-20 | 2019-06-18 | 深圳大学 | It is a kind of that the intelligent of seperated box beam wind shake is inhibited to adjust grid device and its method |
| CN109898405B (en) * | 2019-02-20 | 2020-10-16 | 深圳大学 | Intelligent adjusting grid device and method for inhibiting wind vibration of split box girder |
| CN111996902A (en) * | 2020-07-20 | 2020-11-27 | 深圳大学 | Pneumatic control structure of slotted box girder bridge |
| CN112064488A (en) * | 2020-07-20 | 2020-12-11 | 深圳大学 | Pneumatic adjusting structure for bridge vortex vibration |
| CN111996902B (en) * | 2020-07-20 | 2022-05-31 | 深圳大学 | Pneumatic control structure of slotted box girder bridge |
| CN112900229A (en) * | 2021-01-14 | 2021-06-04 | 同济大学 | Split type case roof beam of adjustable intertroove ventilation rate |
| CN112942094A (en) * | 2021-01-27 | 2021-06-11 | 邹芳 | A check out test set for bridge bottom |
| CN113235386A (en) * | 2021-05-26 | 2021-08-10 | 长安大学 | Device and method for inhibiting vortex vibration generated by separated double-box-girder section bridge |
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