CN203904858U - Shutter type wind barrier for high-speed railway bridge - Google Patents
Shutter type wind barrier for high-speed railway bridge Download PDFInfo
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- CN203904858U CN203904858U CN201420303566.7U CN201420303566U CN203904858U CN 203904858 U CN203904858 U CN 203904858U CN 201420303566 U CN201420303566 U CN 201420303566U CN 203904858 U CN203904858 U CN 203904858U
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Abstract
The utility model relates to a shutter type wind barrier for a high-speed railway bridge. The shutter type wind barrier comprises at least two stand columns, an interval is reserved between the stand columns, the bottoms of the stand columns are fixed to the ground or a base, at least one windshield blade which can rotate along the central axis of the blade and is used for shielding the transverse wind is arranged between the two adjacent stand columns, and an interval is reserved between the rotating loci of the two adjacent windshield blades; the rotating angle of the windshield blades can be changed according to the strength of the transverse wind, when the transverse wind is small in strength, the flowing direction of the transverse wind is changed while ventilating is achieved by rotating the windshield blades at a small angle; when the transverse wind is large in strength, the windshield blades are rotated to be flat with the wind blowing direction, the transverse wind directly passes through the interval between the two windshield blades, the wind load action force of the transverse wind large in strength on the shutter type wind barrier is reduced, thus, the action force transmitted to a lower portion bridge from the shutter type wind barrier is reduced, the normal design and operation of the bridge are guaranteed, and the extra cost consumed in fighting for the transverse wind is reduced.
Description
Technical field
The utility model relates to railroad bridge device technique field, is specifically related to a kind of venetian blind type wind barrier for high-speed railway bridge.
Background technology
Along with developing rapidly of high-speed railway, thing followed bullet train safety problem also embodies one by one.Beam wind is one of threat of bullet train, and train moves the effect that is subject to the lateral force that beam wind causes under beam wind, easily topples, the threat such as derailing, and high wind effect has seriously limited train running speed.For maintaining train operation stability, adopt mode that wind barrier is set in circuit both sides to provide low wind speed running environment for strong wind district train.
Current wind barrier all adopts stationary structure, ensures train windproof effect by reducing ventilative rate and increasing barrier height.But the beam wind aerodynamic force that so just causes high wind leeward barrier to be subject to is excessive, bring fatigue problem to wind barrier.Meanwhile, wind barrier is fixed on bridge, and the wind load acting on barrier is delivered to bridge construction, makes bridge bear huge wind load, has brought very large problem to bridge design and operation.
Therefore, study a kind of novel venetian blind type wind barrier for high-speed railway bridge, become technical problem urgently to be resolved hurrily.
Utility model content
In order to make up the defect of prior art, the utility model patent provides a kind of venetian blind type wind barrier for high-speed railway bridge, to solve existing fixed wind barrier in the fatigue failure that continues to produce under beam wind effect; The high-strength wind load being subject to is delivered to bridge by wind barrier, thereby cause the technical problem of bridge collapse.
In order to realize above-mentioned technical purpose, the technical scheme of the utility model patent is: a kind of venetian blind type wind barrier for high-speed railway bridge, comprise at least two root posts, between column, leave spacing, column bottom fix on the ground or base on, it is characterized in that, between adjacent two root posts, being provided with at least one can rotate along blade axis and in order to stop the blade that keeps out the wind of beam wind, between the rotary motion trace of two adjacent blades that keep out the wind, leave spacing.
Preferably, the blade two ends of keeping out the wind are flexibly connected with the column of end respectively by turning cylinder.
Preferably, the middle part of the blade that keeps out the wind is penetrated with an elongated turning cylinder, and the two ends of turning cylinder are fixed in respectively on the column of end, and the blade that keeps out the wind is rotating to be sheathed on turning cylinder.
Preferably, turning cylinder and/or the blade that keeps out the wind are provided with the position-limit mechanism in order to the spacing distance between blade tip and column of keeping keeping out the wind.
Preferably, keep out the wind blade all along the direction laying perpendicular to column; Or keep out the wind blade all with column oblique.
Preferably, wind barrier also includes controller; On at least one blade that keeps out the wind, be provided with to respond to the wind sensor of wind-force; Keep out the wind and be connected with on blade in order to the keep out the wind angle positioning of blade (2) anglec of rotation of restriction; Wind sensor connects controller, and controller connects and control angle detent mechanism.
Preferably, angle positioning is at least one in alignment pin, locating clip, retainer spring, spring hinge, Location resilient piece.
Preferably, column is along arranged in a straight line, and the arrangement straight line of column is parallel with the rail on railroad bridge.
Preferably, column comprises the first column of arranging near rail and the second column of arranging away from rail.
Preferably, the first column and the second column are intervally arranged.
The beneficial effects of the utility model are:
The utility model, for the venetian blind type wind barrier of high-speed railway bridge, by the mode of the blade that keeps out the wind is set between two adjacent upright, utilizes the anglec of rotation adjusting louver window formula wind barrier of blade and contact surface form and the ventilative rate of beam wind of keeping out the wind.The blade that keeps out the wind changes the anglec of rotation according to the wind-force size of beam wind, during in the face of little air quantity beam wind, carries out changing ventilative time beam wind flow direction by rotating the low-angle blade that keeps out the wind; During in the face of Wind Volume beam wind, keep out the wind blade rotary to the fair state of the direction of the wind comes from, beam wind directly sees through by the gap of keeping out the wind between blade, reduce the wind action power of Wind Volume beam wind for venetian blind type wind barrier, thereby reduce venetian blind type wind barrier and pass to lower bridge beam action, ensure the normal design of bridge and operation, reduce the extra cost that opposing beam wind causes.Between the rotary motion trace of two adjacent blades that keep out the wind, leave spacing, can prevent that adjacent two formation rotations between blade of keeping out the wind from hindering, simultaneously, utilize the spacing between rotary motion trace, the wind-force that utilizes rotation to produce in the time keeping out the wind blade rotation for one drives the adjacent blade rotary that keeps out the wind, thereby produces chain rotatablely moving.
Below in conjunction with accompanying drawing, the utility model patent is described further.
Brief description of the drawings
Fig. 1 is the structural representation of the venetian blind type wind barrier for high-speed railway bridge of the utility model embodiment;
Fig. 2 is the structural representation of the venetian blind type wind barrier for high-speed railway bridge in original state of the utility model embodiment;
Fig. 3 is the structural representation of the venetian blind type wind barrier for high-speed railway bridge of 30 ° of the blade rotaries of keeping out the wind of the utility model embodiment;
Fig. 4 is the structural representation that is arranged on the venetian blind type wind barrier for high-speed railway bridge on railroad bridge of the utility model embodiment;
Fig. 5 is the top view of Fig. 4;
Fig. 6 be the utility model embodiment without car time the keep out the wind pressure cloud atlas of the venetian blind type wind barrier for high-speed railway bridge of 30 ° of blade rotaries;
Fig. 7 be the utility model embodiment without car time the keep out the wind speed vector figure of the venetian blind type wind barrier for high-speed railway bridge of 30 ° of blade rotaries;
Fig. 8 be the utility model embodiment without car time the keep out the wind pressure cloud atlas of the venetian blind type wind barrier for high-speed railway bridge of 150 ° of blade rotaries;
Fig. 9 be the utility model embodiment without car time the keep out the wind speed vector figure of the venetian blind type wind barrier for high-speed railway bridge of 150 ° of blade rotaries.
Wherein 1 is column, and 2 is the blade that keeps out the wind, and 3 is turning cylinder, 4, on ground or base.
Detailed description of the invention
Below to the further illustrating of the utility model patented technology content, but the not restriction to the utility model patent flesh and blood.
Fig. 1 is the structural representation of the venetian blind type wind barrier for high-speed railway bridge of the utility model embodiment; Fig. 2 is the structural representation of the venetian blind type wind barrier for high-speed railway bridge in original state of the utility model embodiment; Fig. 3 is the structural representation of the venetian blind type wind barrier for high-speed railway bridge of 30 ° of the blade rotaries of keeping out the wind of the utility model embodiment; Fig. 4 is the structural representation that is arranged on the venetian blind type wind barrier for high-speed railway bridge on railroad bridge of the utility model embodiment; Fig. 5 is the top view of Fig. 4; Fig. 6 be the utility model embodiment without car time the keep out the wind pressure cloud atlas of the venetian blind type wind barrier for high-speed railway bridge of 30 ° of blade rotaries; Fig. 7 be the utility model embodiment without car time the keep out the wind speed vector figure of the venetian blind type wind barrier for high-speed railway bridge of 30 ° of blade rotaries; Fig. 8 be the utility model embodiment without car time the keep out the wind pressure cloud atlas of the venetian blind type wind barrier for high-speed railway bridge of 150 ° of blade rotaries; Fig. 9 be the utility model embodiment without car time the keep out the wind speed vector figure of the venetian blind type wind barrier for high-speed railway bridge of 150 ° of blade rotaries.
As shown in Figure 1, a kind of venetian blind type wind barrier for high-speed railway bridge of the utility model embodiment, comprise at least two root posts 1, between column 1, leave spacing, column 1 bottom fix on the ground or base 4 on, between adjacent two root posts 1, being provided with at least one can rotate along blade axis and in order to stop the blade 2 that keeps out the wind of beam wind, between the rotary motion trace of two adjacent blades 2 that keep out the wind, leave spacing.The utility model, for the venetian blind type wind barrier of high-speed railway bridge, by the mode of the blade that keeps out the wind is set between two adjacent upright, utilizes the anglec of rotation adjusting louver window formula wind barrier of blade and contact surface form and the ventilative rate of beam wind of keeping out the wind.The blade that keeps out the wind changes the anglec of rotation according to the wind-force size of beam wind, during in the face of little air quantity beam wind, carries out changing ventilative time beam wind flow direction by rotating the low-angle blade that keeps out the wind; During in the face of Wind Volume beam wind, keep out the wind blade rotary to the fair state of the direction of the wind comes from, beam wind directly sees through by the gap of keeping out the wind between blade, reduce the wind action power of Wind Volume beam wind for venetian blind type wind barrier, thereby reduce venetian blind type wind barrier and pass to the effect of bottom bridge c, ensure the normal design of bridge c and operation, reduce the extra cost that opposing beam wind causes.Between the rotary motion trace of two adjacent blades that keep out the wind, leave spacing, can prevent that adjacent two formation rotations between blade of keeping out the wind from hindering, simultaneously, utilize the spacing between rotary motion trace, the wind-force that utilizes rotation to produce in the time keeping out the wind blade rotation for one drives the adjacent blade rotary that keeps out the wind, thereby produces chain rotatablely moving.
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, it is also, blade 2 two ends of keeping out the wind are flexibly connected with the column 1 of end respectively by turning cylinder 3.The blade 2 that keeps out the wind is overall structure with turning cylinder 3, and overall structure is rotated on column 1 by turning cylinder 3, thereby adapts to the beam wind effect of different air quantity.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4 and Fig. 5, it is also, the middle part of the blade 2 that keeps out the wind is penetrated with an elongated turning cylinder 3, the two ends of turning cylinder 3 are fixed in respectively on the column 1 of end, the blade 2 that keeps out the wind is rotating to be sheathed on turning cylinder 3.Rotate on turning cylinder 3 by the blade 2 that keeps out the wind, thereby adapt to the beam wind effect of different air quantity.
It is also, turning cylinder 3 and/or the blade 2 that keeps out the wind are provided with the position-limit mechanism in order to the spacing distance between blade 2 ends and column 1 of keeping keeping out the wind.
It is also, the blade 2 that keeps out the wind is all laid along the direction perpendicular to column 1; Or keep out the wind blade 2 all with column 1 oblique.
It is also, wind barrier also includes controller; On at least one blade 2 that keeps out the wind, be provided with to respond to the wind sensor of wind-force; Keep out the wind and be connected with on blade 2 in order to the keep out the wind angle positioning of blade 2 anglecs of rotation of restriction; Wind sensor connects controller, and controller connects and control angle detent mechanism.
It is also, angle positioning is at least one in alignment pin, locating clip, retainer spring, spring hinge, Location resilient piece.
It is also, column 1 is along arranged in a straight line, and the arrangement straight line of column 1 is parallel with the rail on railroad bridge.
It is also, column 1 comprises the first column of arranging near rail and the second column of arranging away from rail.
It is also, the first column and the second column are intervally arranged.
Fig. 6 and Fig. 7 are pressure cloud atlas and the speed vector figure in little corner (30 °) situation, can see low-angle blade tilt on circuit for train a operation provides stable pressure and low wind speed environment, air-flow can direct effect to train a.
Fig. 8 and Fig. 9 are pressure cloud atlas and the speed vector figure in little corner (150 °) situation, can see that the blade tilt of wide-angle has reduced the wind speed on circuit equally, and airflow function, in train a bottom, has reduced the aerodynamic force of train a.Hinder outside pressure compared with smaller screen, reduce the aerodynamic force of beam wind to barrier simultaneously.
When enforcement, changed and stopped that the mode of incoming flow and incoming flow are by the outflow angle after barrier by setting blade 2 anglecs of rotation of keeping out the wind, the aeroperformance that research brings thus changes, and realizes by changing blade 2 angles the object that changes ventilative rate.Its principle is as shown in Fig. 1,2,3,4,5.The rotation of the axis of rotation 3 of the utility model venetian blind type wind barrier by being located at certain position of blade of keeping out the wind changes blade 2 angles of keeping out the wind, and changes the angle of cut of incoming flow and blade by the variation of the anglec of rotation, changes the outflow mode of wake flow simultaneously.In the time that blade and the vertical direction angle of cut are 0 °, be assumed to original state, be equivalent to arrange airfast wind barrier, now ventilative rate is 0, stops incoming flow effect maximum; In the time that being 90 °, the angle of cut is equivalent to arrange horizontal paling form wind barrier, now ventilative rate maximum, and most incoming flows all can see through, and are conducive to high wind and do the protection of used time to wind barrier and bridge c; In the time that the angle of cut is 180 °, get back to again stuffy barrier form.Keeping out the wind blade in the middle of the one-period of 0～180 ° of variation, and the direction of incoming flow after wind barrier is by upwards gradually becoming downwards, and certain angle has also been avoided the vertical severe impact of air-flow to verge board.Because the blade that keeps out the wind has certain thickness, its end is made into fusiformis and can ensures to close completely.Whole barrier, is arranged at a certain distance the rotatable blade 2 that keeps out the wind is installed between 1, two column 1 of column by anchor connection on the bridge floor edge of a wing.
The utility model venetian blind type wind barrier is also to realize the object that changes wind barrier height by changing the keep out the wind height of blade 2 and the quantity of the blade 2 that keeps out the wind of monolithic.Be to change angle and reach the object that changes ventilative rate and airflow direction water conservancy diversion.
When the utility model venetian blind type wind barrier is also to adopt ACTIVE CONTROL, control the angle of inclination of the blade 2 that keeps out the wind by controlling the rotation of turning cylinder 3.While adopting Passive Control, drive the rotation of the blade 2 that keeps out the wind by the stressed rotation of plate.
In addition, in different incoming flow situations, the angle which kind of mode to change the blade 2 that keeps out the wind by is also a problem that is worth research.The angle that can change according to the wind speed of incoming flow and the wind angle of attack etc. blade 2, can be divided into active and two kinds of modes of passive type.For example, obtain wind field data by establish monitoring wind field device at work point place, or on wind barrier sensor installation, and send data to electronic intelligence system and control the modes such as blade angle and realize ACTIVE CONTROL, be called active; Or forming spring hinge at axis of rotation mounting spring device, the mode of directly blowing top blade by the wind-force of incoming flow changes the modes such as blade angle and realizes passive rotation, is similar to the operating principle of swinging door, is called passive type.
When the utility model venetian blind type wind barrier changes the anglec of rotation of the blade 2 that keeps out the wind, also the angle and the fluid that have changed reflection incoming flow act on the force direction on barrier simultaneously, in the time that the anglec of rotation changes, incoming flow is vertical component velocity by horizontal velocity Partial Conversion after blade 2 reflections of keeping out the wind, now be equivalent to, in to 2 one lateral forces of blade that keep out the wind, return 2 one the vertical aerodynamic force of blade that keep out the wind.Keep the less anglec of rotation by the keep out the wind anglec of rotation of blade 2 and numerical value direction of change, train a by time ensure train a aeroperformance, without car by time keeps and level is smaller angle to improve the aeroperformance of wind barrier and bridge c.
As shown in Figure 4 and Figure 5, H is wind barrier height, and h is verge board height, and b is verge board thickness, and β is the anglec of rotation, and L is column spacing.These parameters all can be adjusted in conjunction with correlative study according to actual track.The utility model is applicable to all kinds of high-speed railway bridges, particularly Longspan Bridge.Can improve this aeroperformance in strong wind of running train, bridge and barrier, improve the force-bearing situation of bridge construction and accessory structure thereof, barrier structure, improve fatigue life, improve the service level of whole rail track.
The utility model belongs to one of primary study content of project of national nature science fund project (51178471,51322808), for running train aeroperformance and safety traffic provide more accurate wind tunnel test means, thereby for the technical support that provides of bullet train safe operation is provided.
The foregoing is only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure transformation that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. the venetian blind type wind barrier for high-speed railway bridge, comprise at least two root posts (1), column leaves spacing between (1), column (1) bottom fix on the ground or base (4) on, it is characterized in that, between adjacent two root posts (1), being provided with at least one can rotate along blade axis and in order to stop the blade that keeps out the wind (2) of beam wind, between the rotary motion trace of adjacent two blades that keep out the wind (2), leave spacing.
2. the venetian blind type wind barrier for high-speed railway bridge according to claim 1, is characterized in that, the blade that keeps out the wind (2) two ends are flexibly connected with the column (1) of end respectively by turning cylinder (3).
3. the venetian blind type wind barrier for high-speed railway bridge according to claim 1, it is characterized in that, the keep out the wind middle part of blade (2) is penetrated with an elongated turning cylinder (3), the two ends of turning cylinder (3) are fixed in respectively on the column (1) of end, and the blade that keeps out the wind (2) is rotating to be sheathed on turning cylinder (3).
4. the venetian blind type wind barrier for high-speed railway bridge according to claim 3, it is characterized in that, turning cylinder (3) and/or the blade that keeps out the wind (2) are provided with the position-limit mechanism in order to the spacing distance between blade (2) end and column (1) of keeping keeping out the wind.
5. according to the venetian blind type wind barrier for high-speed railway bridge described in any one in claim 1 to 4, it is characterized in that, the blade that keeps out the wind (2) is all laid along the direction perpendicular to column (1); Or the blade that keeps out the wind (2) all with column (1) oblique.
6. according to the venetian blind type wind barrier for high-speed railway bridge described in any one in claim 1 to 4, it is characterized in that, wind barrier also includes controller; On at least one blade that keeps out the wind (2), be provided with to respond to the wind sensor of wind-force; Keep out the wind and be connected with on blade (2) in order to the keep out the wind angle positioning of blade (2) anglec of rotation of restriction; Wind sensor connects controller, and controller connects and control angle detent mechanism.
7. the venetian blind type wind barrier for high-speed railway bridge according to claim 6, is characterized in that, angle positioning is at least one in alignment pin, locating clip, retainer spring, spring hinge, Location resilient piece.
8. according to the venetian blind type wind barrier for high-speed railway bridge described in any one in claim 1 to 4, it is characterized in that, column (1) is along arranged in a straight line, and the arrangement straight line of column (1) is parallel with the rail on railroad bridge.
9. according to the venetian blind type wind barrier for high-speed railway bridge described in any one in claim 1 to 4, it is characterized in that, column (1) comprises the first column of arranging near rail and the second column of arranging away from rail.
10. according to the venetian blind type wind barrier for high-speed railway bridge described in any one in claim 1 to 4, it is characterized in that, the first column and the second column are intervally arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420303566.7U CN203904858U (en) | 2014-06-10 | 2014-06-10 | Shutter type wind barrier for high-speed railway bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420303566.7U CN203904858U (en) | 2014-06-10 | 2014-06-10 | Shutter type wind barrier for high-speed railway bridge |
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| Publication Number | Publication Date |
|---|---|
| CN203904858U true CN203904858U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420303566.7U Expired - Fee Related CN203904858U (en) | 2014-06-10 | 2014-06-10 | Shutter type wind barrier for high-speed railway bridge |
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| Country | Link |
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| CN (1) | CN203904858U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672118A (en) * | 2016-04-10 | 2016-06-15 | 中南大学 | Self-adaption air barrier used for driving bridge |
| CN114263132A (en) * | 2022-01-24 | 2022-04-01 | 姜晓冬 | Rotatable energy-saving device capable of keeping out wind and recycling for highway bridges |
-
2014
- 2014-06-10 CN CN201420303566.7U patent/CN203904858U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105672118A (en) * | 2016-04-10 | 2016-06-15 | 中南大学 | Self-adaption air barrier used for driving bridge |
| CN105672118B (en) * | 2016-04-10 | 2018-06-15 | 中南大学 | For the adaptive wind barrier of garage's bridge |
| CN114263132A (en) * | 2022-01-24 | 2022-04-01 | 姜晓冬 | Rotatable energy-saving device capable of keeping out wind and recycling for highway bridges |
| CN114263132B (en) * | 2022-01-24 | 2024-01-19 | 中通工程设计有限公司 | Rotatable wind-shielding and recyclable energy-saving device for highway bridge |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20180610 |
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| CF01 | Termination of patent right due to non-payment of annual fee |