CN204282236U - A kind of high-speed railway bridge wind shielding structure verge board - Google Patents
A kind of high-speed railway bridge wind shielding structure verge board Download PDFInfo
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- CN204282236U CN204282236U CN201420731457.5U CN201420731457U CN204282236U CN 204282236 U CN204282236 U CN 204282236U CN 201420731457 U CN201420731457 U CN 201420731457U CN 204282236 U CN204282236 U CN 204282236U
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Abstract
The utility model relates to a kind of high-speed railway bridge wind shielding structure verge board.Existing general fast railroad bridge draught exclusion device cannot meet the windproof requirement of strong wind district high-speed railway bridge.Verge board involved by the utility model is spliced by some unit boards that keeps out the wind parallel up and down and forms, and is transverse wave steel plate, every plate hight 0.5m, long 1.5-2m, thick 3-4mm, wave height 70mm; Keep out the wind on unit board and be provided with verge board perforate, be nose circle perforate, comprise oval stomidium and short nose circle hole, and interval is arranged, percent opening is 10% or 20%; Two ends, unit board left and right of keeping out the wind are provided with draw-in groove for fixing with column, and are reserved with bolt hole for arranging verge board set bolt.The utility model is fixed between the spaced column 4 in bridge windward side, the wind shielding structure of composition bridge, and checking better effects if, rigidity and intensity are higher, installation is easier, are applicable to the windproof requirement of high-speed railway bridge.
Description
Technical field
the utility model belongs to the windproof technical field of high-speed railway, is specifically related to a kind of high-speed railway bridge wind shielding structure verge board.
Background technology
Be positioned at the railway in strong wind area, the situation that train is turned over by large wind often occurs.The Bai Lifeng district that wherein Xinjiang is domestic, three Shi Lifeng districts are one of China and even railway disaster caused by a windstorm is the most serious in the world area.Repeatedly there is the accident that train is turned over by large wind for many years, bring huge economic loss and serious social influence to the transport production of railway.
High Speed Railway Trains, because speed is fast, axle heavy and light, more easily topples under horizontal high wind effect; Train aerodynamic-force is much larger than general fast railroad train simultaneously, therefore by needing extensive installation bridge wind shielding structure during wind district.But at present existing general fast bridge wind shielding structure, all can not meet the instructions for use of high-speed railway in make an uproar control, durability, degree easy for installation of checking effect, the rigidity of structure, stress, wind.
Summary of the invention
The purpose of this utility model is to provide a kind of high-speed railway bridge wind shielding structure verge board, and checking better effects if, rigidity and intensity are higher, installation is easier.
The technical scheme that the utility model adopts is:
A kind of high-speed railway bridge wind shielding structure verge board, is characterized in that:
Described verge board is spliced by some unit boards that keeps out the wind parallel up and down and forms, and is transverse wave steel plate, every plate hight 0.5m, long 1.5-2m, thick 3-4mm, wave height 70mm;
The described unit board that keeps out the wind is provided with verge board perforate, is nose circle perforate, comprise oval stomidium and short nose circle hole, and interval is arranged.
Described two ends, unit board left and right of keeping out the wind are provided with the draw-in groove for fixing with column, and are reserved with bolt hole for arranging verge board set bolt.
The percent opening of the described unit board that keeps out the wind is 10% or 20%;
During 20% percent opening, every block keeps out the wind on unit board waveform hypotenuse and offers 3 rows of openings, flat section offers 1 round;
During 10% percent opening, every block keeps out the wind on unit board waveform hypotenuse and offers 1 rows of openings.
Described oval stomidium and short nose circle hole height are 14mm, and length is respectively 45mm and 22mm, hole center distance 51mm.
The utility model has the following advantages:
1) verge board is separated into the unit board that keeps out the wind by the utility model, by optimizing the technical data of verge board, makes wind shielding structure on wind field guiding, sea land distribution, material usage, construction and installation and environmental noise abatement, reach optimum.
2) in conjunction with the change of wind outside ambient wind velocity and bridge height, by choose reasonable wave height, thickness of slab, percent opening, in the visual field effect ensureing under the beam wind of structure topples safe prerequisite to rigidity and train, decrease materials'use amount, improve passenger simultaneously, improve level of comfort.
3) perforate mode is oval stomidium and short nose circle hole interlaced arrangement, by the change of this pass, reduce incoming flow wind speed, on the other hand incoming flow wind on the one hand by after wind shielding structure unit board, form turbulent flow and change wind direction, thus reduce the horizontal kinetic energy of wind greatly, reduce beam wind to the impact of train, thus reach the object of keeping out the wind.
4) unit board two ends of keeping out the wind are provided with draw-in groove, are connected with column by the draw-in groove of plate end, are more convenient for installing, and reduce the problem of unit board stress raisers.Adopt the connected mode of overlap joint between plate and plate, decrease wind and make an uproar.
5) the overall percent opening of unit board can need flexible combination according to windproof
Verge board vertically arranges the windproof needs according to train, adopts 10% percent opening verge board and 20% percent opening verge board vertically to combine, and the overall percent opening of unit board can need flexible combination according to windproof.Adopt 10% percent opening verge board within the scope of the above 1-2m of bridge floor, within the scope of all the other 3.0-2.0m, adopt 20% percent opening verge board.Combination percent opening not only ensure that the overall percent opening of structure is less than 20%, meanwhile, reduces perforate, can further improve checking effect for the downside of train checking most pronounced effects.
6) utilize the change of percent opening, rationally solve the wind field transition of Qiao Lu, bridge tunnel changeover portion.
The changeover portion that abutment is connected with roadbed and tunnel, the percent opening of bridge road wind shielding structure is adjusted to 10%, achieves the windproof effect transition of solid windbreak or roadbed open cut tunnel wind shielding structure with roadbed smoothly, avoids wind field sudden change, on the impact of train operation.Through the test of motor-car real vehicle strong wind, respond well.
7) adopt weathering steel, reduce maintenance workload
Corrugated sheet steel considers that Xinjiang region lacks rainwater, evaporation capacity is large, serious natural characteristic of simultaneously eroding, and adopts weathering steel.Utilize the air weather resisteant of weathering steel, reduce maintenance workload.
8) set up draw-in groove outside unit board, improve unit board rigidity, ensure that in transport, installation and can not deform; Draw-in groove and unit board with bolts, and arrange segmentation weld seam in the end be connected with draw-in groove, ensure that the reliable power transmission of unit board and draw-in groove, and avoid open elliptical aperture on unit board, the stress causing unit board locally to weaken to bring is concentrated.
9) draw-in groove arranges elliptical aperture, and double nut and locking pin are set, meet and install and screw retention requirement, for adapting to the needs of alignment error, draw-in groove arranging elliptical aperture, and increases the scope of tolerance fit, adapt to column interval error preferably.The connection of unit board and column adopts the mode arranging check washer, double nut and locking pin, solves bolt and loosens problem.The nut of unit board and column of keeping out the wind in installation is positioned at away from line side, and has draw-in groove to stop, ensure that bolt accidental removal, train also can not occur and adsorb the safety problem caused.Draw-in groove and column easy to connect, the installation of bolt and safeguarding all is carried out inside circuit, when more the connection avoiding corrugated sheet and column adopts and directly connects, install and the operation of the plug-in construction of maintenance personnel need inconvenient and dangerous.
Accompanying drawing explanation
Fig. 1 is the utility model front view.
Fig. 2 is the utility model lateral view.
Fig. 3 is the utility model top view.
In figure, 1-keeps out the wind unit board, the perforate of 2-verge board, 3-draw-in groove, 4-column, 5-verge board set bolt, the 6-beam body edge of a wing.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the utility model is described in detail.
A kind of high-speed railway bridge wind shielding structure verge board involved by the utility model, being fixed on bridge windward side spaced column 4(spacing is 1.6-2.5m) between, the wind shielding structure of composition bridge.Verge board is spliced by some unit boards 1 that keeps out the wind parallel up and down and forms, and is transverse wave steel plate, every plate hight 0.5m, long 1.5-2m, thick 3-4mm, wave height 70mm, waveform hypotenuse rake angle 50 degree.Keep out the wind on unit board 1 and be provided with verge board perforate 2, being nose circle perforate, is highly 14mm, comprises oval stomidium (length 45mm) and short nose circle hole (length 22mm), and interval is arranged, and hole center distance 51mm, percent opening is 10% or 20%.During 20% percent opening, every module unit Lamb wave shape hypotenuse offers 3 rows of openings, flat section offers 1 round.During 10% percent opening, every module unit Lamb wave shape hypotenuse offers 1 rows of openings.Adopt 10% percent opening within the scope of the above 1.0-2.0m of bridge floor, within the scope of all the other, adopt 20% percent opening, different percent opening combinations also can be set between different columns 4.
Unit board about 1 two ends of keeping out the wind are provided with draw-in groove 3 for fixing with column, and are reserved with bolt hole for arranging verge board set bolt 5.
Content of the present utility model is not limited to cited by embodiment, and the conversion of those of ordinary skill in the art by reading the utility model manual to any equivalence that technical solutions of the utility model are taked, is claim of the present utility model and contains.
Claims (4)
1. a high-speed railway bridge wind shielding structure verge board, is characterized in that:
Described verge board is spliced by some unit boards that keeps out the wind (1) parallel up and down and forms, and is transverse wave steel plate, every plate hight 0.5m, long 1.5-2m, thick 3-4mm, wave height 70mm;
The described unit board that keeps out the wind (1) is provided with verge board perforate, is nose circle perforate, comprise oval stomidium and short nose circle hole, and interval is arranged.
2. a kind of high-speed railway bridge wind shielding structure verge board according to claim 1, is characterized in that:
The described unit board that keeps out the wind (1) two ends, left and right are provided with the draw-in groove (3) for fixing with column, and are reserved with bolt hole for arranging verge board set bolt (5).
3. a kind of high-speed railway bridge wind shielding structure verge board according to claim 2, is characterized in that:
The percent opening of the described unit board that keeps out the wind (1) is 10% or 20%;
During 20% percent opening, every block keeps out the wind on unit board (1) waveform hypotenuse and offers 3 rows of openings, flat section offers 1 round;
During 10% percent opening, every block keeps out the wind on unit board (1) waveform hypotenuse and offers 1 rows of openings.
4. a kind of high-speed railway bridge wind shielding structure verge board according to claim 3, is characterized in that:
Described oval stomidium and short nose circle hole height are 14mm, and length is respectively 45mm and 22mm, hole center distance 51mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420731457.5U CN204282236U (en) | 2014-11-28 | 2014-11-28 | A kind of high-speed railway bridge wind shielding structure verge board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420731457.5U CN204282236U (en) | 2014-11-28 | 2014-11-28 | A kind of high-speed railway bridge wind shielding structure verge board |
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| Publication Number | Publication Date |
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| CN204282236U true CN204282236U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420731457.5U Active CN204282236U (en) | 2014-11-28 | 2014-11-28 | A kind of high-speed railway bridge wind shielding structure verge board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404894A (en) * | 2014-11-28 | 2015-03-11 | 中铁第一勘察设计院集团有限公司 | High-speed rail bridge wind shielding structure wind shielding plate |
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2014
- 2014-11-28 CN CN201420731457.5U patent/CN204282236U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404894A (en) * | 2014-11-28 | 2015-03-11 | 中铁第一勘察设计院集团有限公司 | High-speed rail bridge wind shielding structure wind shielding plate |
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