CN102261045A - Nose-shaped metal sound barrier unit plate for high-speed railway - Google Patents
Nose-shaped metal sound barrier unit plate for high-speed railway Download PDFInfo
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- CN102261045A CN102261045A CN 201110105995 CN201110105995A CN102261045A CN 102261045 A CN102261045 A CN 102261045A CN 201110105995 CN201110105995 CN 201110105995 CN 201110105995 A CN201110105995 A CN 201110105995A CN 102261045 A CN102261045 A CN 102261045A
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Abstract
The invention discloses a nose-shaped metal sound barrier unit plate for a high-speed railway. The unit plate comprises an aluminium alloy face plate (1), an aluminium alloy back plate (9), a fiber cement plate (13) between the aluminium alloy face plate (1) and the aluminium alloy back plate (9), sound absorbing materials (14) and sound absorbing material fixing devices (16), wherein a nose-shaped bulge (2) protruding outwards is arranged in the middle-upper part of the aluminium alloy face plate (1); the slant part of the nose-shaped bulge (2) is arc-shaped; a transverse bottom (3) is provided with sound absorbing materials (15); and sound holes (4) are arranged on the bottom (3) of the nose-shaped bulge (2) and on the parts except the nose-shaped bulge (2), on the aluminium alloy face plate (1). The unit plate has a strong barrier effect on sounds and has a good noise reduction effect.
Description
Technical field
The present invention relates to a kind of high-speed railway nose shape metallic sound barrier unit board.
Background technology
Along with the fast development of the high-speed railway of China, the noise pollution that bullet train produces during by the residential block has had a strong impact on the normal work of resident and has had a rest, and is an effective control measures and build sound barrier.
Build high speed railway sound barrier two difficult problems are arranged: one, high-speed railway mechanism of noise generation complexity, and the main sound source of car external radiation noise is the aerodynamic noise of wheel track contact site, bogie, pantograph and base thereof and vehicle junction, and acoustic pressure all compares significantly at low frequency, intermediate frequency and high frequency.Its two, the high-speed railway institute along the line sound barrier of building is nearer apart from rail, train can produce bigger air pressure load, so noise barrier structure must have enough intensity and fatigue resistance at a high speed through out-of-date.
The high speed railway sound barrier of having built at present extensively adopts board plug type, promptly at the high-speed railway H shaped steel column that even distance is installed along the line, places the polylith unit board of vertical combination again between column.The structure of every module unit plate is fiber cement board, sound absorption material and the sound absorption material fastening devices between aluminium alloy panel, aluminum alloy back plate, aluminium alloy panel and the aluminum alloy back plate.The problem that exists is: one, because aluminium alloy panel is straight, unit board inner chamber thickness is limited and fixing, and is poor to the acoustically effective of medium and low frequency; And have only the sound absorption of sound absorption material and the sound insulation effect of fiber cement board, no scattering noise reduction form also causes its noise reduction dissatisfied, the about 5dB of its noise reduction to railroad noise (A).Two, the into rainwater that also wafts easily of the sound absorption hole on the straight aluminium alloy panel causes sound absorption material to shift to an earlier date damp failure easily, has both reduced noise reduction, also increases later maintenance cost.Three, dust is also adhered in the sound absorption hole on the straight aluminium alloy panel easily, cause it to use a period of time after, noise reduction also can variation.
Summary of the invention
The purpose of this invention is to provide a kind of high-speed railway nose shape metallic sound barrier unit board, this kind metallic sound barrier unit board is strong to the barrier action of sound, excellent noise reduction effect.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high-speed railway nose shape metallic sound barrier unit board, comprise the fiber cement board between aluminium alloy panel, aluminum alloy back plate, aluminium alloy panel and the aluminum alloy back plate), sound absorption material and sound absorption material fastening devices, its design feature is: the middle and upper part of aluminium alloy panel is the nose shape projection of outside protrusion; The oblique position of nose shape projection is an arc, and horizontal bottom is provided with sound absorption material; Position on the bottom of nose shape projection and the aluminium alloy panel beyond the nose shape projection has hole.
Compared with prior art, the invention has the beneficial effects as follows:
One, owing to, can produce scattering process, makes acoustic reflection to the railway sky, and can not reflex to the residential block of railway both sides the noise of high-speed railway towards the oblique not perforate of position of the middle and upper part nose shape projection of the aluminium alloy panel of track one side.
Simultaneously, the bottom of nose shape projection has hole, and places sound absorption material in the bottom, forms the nose shape sound absorption cavity to the equal tool sound absorption of different frequency bands noise of gradient thickness, and various frequency bands especially low-frequency noise can well be absorbed by nose shape sound absorption cavity.The noise that minority is not absorbed by nose shape sound absorption cavity arrives sound absorption material between metal decking and the backboard again and is absorbed or is cut off by cement fibrolite plate.
And the sound hole at the position beyond the nose shape projection and the sound absorption material and the cement fibrolite plate of panel postmedian on the aluminium alloy panel then can the centering generating high frequency noise absorb sound and the sound insulation effect preferably.
In a word, scattering and the broadband sound absorption of the nose shape sound absorption cavity of gradient thickness and sound absorption and the sound insulation effect of sound absorption material between backboard and panel and sound insulating material of the present invention by nose shape projection, make its barrier action strong to sound, excellent noise reduction effect can reduce the about 10dB of railroad noise (A).
Two, hole is not opened at the oblique position of nose shape projection, except the reflex that can make progress to sound generating, can also stop that rainwater enters unit board inside from here, and the sound Kong Jun of nose shape projection bottom and panel middle and lower part is covered by nose shape projection, the rainwater into unit board inside that also is difficult for wafing from the sound hole of nose shape projection bottom and middle and lower part, sound absorption material is difficult for damp failure, has also guaranteed noise reduction to have reduced later maintenance cost.
Three, hole is not opened at the oblique position of nose shape projection, and the sound hole of the bottom of nose shape projection and panel middle and lower part is also covered by nose shape projection, is not easy to adhere to dust, and noise reduction can be kept for a long time.
Above-mentioned aluminum alloy back plate is pressed with rib longitudinally.
Like this, the longitudinal rigidity of aluminum alloy back plate can be increased, the impact of train wind and beam wind can better be resisted.
Above-mentioned aluminium alloy panel bottom is provided with drain hole.
Like this, the rainwater that enters in the unit board can be discharged from drain hole, further guarantees not damp failure of sound absorption material, reduces later maintenance cost.
The top of above-mentioned aluminum alloy back plate and bottom are fastened on respectively on the top and bottom of aluminium alloy panel.Like this, aluminum alloy back plate is in the outside of aluminium alloy panel.When installing and using, the weight of upper unit plate is born by the stronger backboard of the intensity of not perforate, makes total more firm.
The present invention is described in further detail below in conjunction with accompanying drawing and concrete embodiment.
Description of drawings
Fig. 1 is the elevation of the embodiment of the invention.
Fig. 2 is the rear elevation of the embodiment of the invention.
Fig. 3 be the embodiment of the invention analyse and observe the structure for amplifying schematic diagram.
The specific embodiment
Fig. 1, Fig. 3 illustrate, a kind of specific embodiment of the present invention is, a kind of high-speed railway nose shape metallic sound barrier unit board, comprise fiber cement board 13, sound absorption material 14 and sound absorption material fastening devices 16 between aluminium alloy panel 1, aluminum alloy back plate 9, aluminium alloy panel 1 and the aluminum alloy back plate 9, it is characterized in that: the middle and upper part of described aluminium alloy panel 1 is the nose shape projection 2 of outside protrusion; The oblique position of nose shape projection 2 is an arc, and horizontal bottom 3 is provided with sound absorption material 15; Position on the bottom 3 of nose shape projection 2 and the aluminium alloy panel 1 beyond the nose shape projection 2 has hole 4.
Fig. 2 illustrates, and this routine aluminum alloy back plate 9 is pressed with rib 10 longitudinally.
Fig. 1 illustrates, and this routine aluminium alloy panel 1 bottom is provided with drain hole 5.
Fig. 3 illustrates, and the top 11 of this routine aluminum alloy back plate 9 and bottom 12 are fastened on respectively on the top 6 and bottom 7 of aluminium alloy panel 1.
Claims (4)
1. high-speed railway nose shape metallic sound barrier unit board, comprise fiber cement board (13), sound absorption material (14) and sound absorption material fastening devices (16) between aluminium alloy panel (1), aluminum alloy back plate (9), aluminium alloy panel (1) and the aluminum alloy back plate (9), it is characterized in that: the middle and upper part of described aluminium alloy panel (1) is the nose shape projection (2) of outside protrusion; The oblique position of nose shape projection (2) is an arc, and horizontal bottom (3) are provided with sound absorption material (15); The bottom (3) of nose shape projection (2) and aluminium alloy panel (1) go up nose shape projection (2) position in addition and all have hole (4).
2. high-speed railway nose shape metallic sound barrier unit board according to claim 1, it is characterized in that: described aluminum alloy back plate (9) is pressed with rib (10) longitudinally.
3. high-speed railway nose shape metallic sound barrier unit board according to claim 1, it is characterized in that: described aluminium alloy panel (1) bottom is provided with drain hole (5).
4. high-speed railway nose shape metallic sound barrier unit board according to claim 1, it is characterized in that: the top (11) of described aluminum alloy back plate (9) and bottom (12) are fastened on respectively on the top (6) and bottom (7) of aluminium alloy panel (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101059954A CN102261045B (en) | 2011-04-27 | 2011-04-27 | Nose-shaped metal sound barrier unit plate for high-speed railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101059954A CN102261045B (en) | 2011-04-27 | 2011-04-27 | Nose-shaped metal sound barrier unit plate for high-speed railway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102261045A true CN102261045A (en) | 2011-11-30 |
| CN102261045B CN102261045B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011101059954A Expired - Fee Related CN102261045B (en) | 2011-04-27 | 2011-04-27 | Nose-shaped metal sound barrier unit plate for high-speed railway |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422450A (en) * | 2013-07-11 | 2013-12-04 | 西南交通大学 | Combined load shedding type sound barrier for high speed railway |
| CN106638347A (en) * | 2017-03-04 | 2017-05-10 | 河南东海复合材料有限公司 | Glass steel noise barrier with function of reducing noise diffraction |
| CN107237274A (en) * | 2017-06-29 | 2017-10-10 | 扬州大学 | A kind of polarisation splash-proof vacuum plate glass nose type sound-absorbing sound barrier |
| CN106245549B (en) * | 2016-10-09 | 2018-12-11 | 中国铁路设计集团有限公司 | Urban track traffic sound barrier efficiently absorbs sound cell board and its design method |
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| JPH11166211A (en) * | 1997-12-05 | 1999-06-22 | Japan Railway Constr Pub Corp | Soundproof precast concrete wall |
| JPH11293630A (en) * | 1999-01-27 | 1999-10-26 | Kam:Kk | Scaffold-cum-noise absorbing member for overhead bridge |
| CN2403815Y (en) * | 2000-01-20 | 2000-11-01 | 上海交通大学 | Rain and dust proof wide-frequency band impedance compound acoustic shielding |
| JP2001064919A (en) * | 1999-08-30 | 2001-03-13 | Sekisui Jushi Co Ltd | Soundproof wall |
| JP2001295226A (en) * | 2000-04-12 | 2001-10-26 | Nitto Boseki Co Ltd | Support for noise barrier and sound isolating wall |
| CN2457194Y (en) * | 2000-12-14 | 2001-10-31 | 上海申华声学装备有限公司 | Arc type sound absorption screen |
| CN201804555U (en) * | 2010-08-24 | 2011-04-20 | 湖北徐风环保科技有限公司 | Modified perlite composite sound barrier |
| CN102021890A (en) * | 2009-09-22 | 2011-04-20 | 王力 | High-speed railway sound barrier device |
| CN202081390U (en) * | 2011-04-27 | 2011-12-21 | 常州市金路轨道交通科技发展有限公司 | High-speed railway sound barrier cell plate |
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2011
- 2011-04-27 CN CN2011101059954A patent/CN102261045B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11166211A (en) * | 1997-12-05 | 1999-06-22 | Japan Railway Constr Pub Corp | Soundproof precast concrete wall |
| JPH11293630A (en) * | 1999-01-27 | 1999-10-26 | Kam:Kk | Scaffold-cum-noise absorbing member for overhead bridge |
| JP2001064919A (en) * | 1999-08-30 | 2001-03-13 | Sekisui Jushi Co Ltd | Soundproof wall |
| CN2403815Y (en) * | 2000-01-20 | 2000-11-01 | 上海交通大学 | Rain and dust proof wide-frequency band impedance compound acoustic shielding |
| JP2001295226A (en) * | 2000-04-12 | 2001-10-26 | Nitto Boseki Co Ltd | Support for noise barrier and sound isolating wall |
| CN2457194Y (en) * | 2000-12-14 | 2001-10-31 | 上海申华声学装备有限公司 | Arc type sound absorption screen |
| CN102021890A (en) * | 2009-09-22 | 2011-04-20 | 王力 | High-speed railway sound barrier device |
| CN201804555U (en) * | 2010-08-24 | 2011-04-20 | 湖北徐风环保科技有限公司 | Modified perlite composite sound barrier |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422450A (en) * | 2013-07-11 | 2013-12-04 | 西南交通大学 | Combined load shedding type sound barrier for high speed railway |
| CN103422450B (en) * | 2013-07-11 | 2016-02-03 | 西南交通大学 | A kind of high-speed railway compound off-load formula sound barrier |
| CN106245549B (en) * | 2016-10-09 | 2018-12-11 | 中国铁路设计集团有限公司 | Urban track traffic sound barrier efficiently absorbs sound cell board and its design method |
| CN106638347A (en) * | 2017-03-04 | 2017-05-10 | 河南东海复合材料有限公司 | Glass steel noise barrier with function of reducing noise diffraction |
| CN107237274A (en) * | 2017-06-29 | 2017-10-10 | 扬州大学 | A kind of polarisation splash-proof vacuum plate glass nose type sound-absorbing sound barrier |
| CN107237274B (en) * | 2017-06-29 | 2019-09-10 | 扬州大学 | A kind of polarisation splash-proof vacuum plate glass nose type sound-absorbing sound barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102261045B (en) | 2012-11-28 |
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