CN106049301B - Automatic deloading sound barrier - Google Patents
Automatic deloading sound barrier Download PDFInfo
- Publication number
- CN106049301B CN106049301B CN201610492485.XA CN201610492485A CN106049301B CN 106049301 B CN106049301 B CN 106049301B CN 201610492485 A CN201610492485 A CN 201610492485A CN 106049301 B CN106049301 B CN 106049301B
- Authority
- CN
- China
- Prior art keywords
- sound barrier
- lower plywood
- sound
- top plate
- pedestal
- 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.)
- Active
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0029—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement with porous surfaces, e.g. concrete with porous fillers
Abstract
The invention discloses a kind of automatic deloading sound barrier, including top plate, middle plate, lower plywood, pedestal and two root posts；Pedestal fixes on the ground, two root posts are separately fixed at pedestal both ends, top plate, middle plate and lower plywood are sequentially fixed between two root posts from top to bottom, the top plate and lower plywood are acoustic board, the middle plate is sound insulationg board, the middle plate is equipped with multiple gas channels, and annular air-pocket is equipped with around the gas channel.This invention removes wind load to the adverse effect of sound barrier, reduce the fatigue rupture of train parting and natural wind load to noise barrier structure, so as to achieve the purpose that extend barrier structure maintenance cycle and service life, use cost is greatly saved.
Description
Technical field
Absorption or reflection unit the present invention relates to the road through air transmitted or railway traffic noise, and in particular to a kind of
Automatic deloading sound barrier.
Background technology
Sound barrier is mainly used for the sound insulation and noise reducing of highway, highway, overhead composite road and other noise sources.In vapour
When vehicle is run, noise jamming has seriously affected normal work and the learning life of railway both sides resident to social influence maximum.Institute
With sound barrier is a kind of one of effective method for solving environmental noise of train pollution, they are widely used in Along Railway ring
In border noise abatement engineering.
In past decades, the design of sound barrier mainly considers how to improve the performance of its sqouynd absorption lowering noise, largely
Test method and numerical value Simulation Application are in the research of the sound insulation sound absorption effect of sound barrier, and be thus born diversified sound-screen
Barrier.When the EMU run at high speed is provided with the section of sound barrier by overpass, the sky between vehicle and sound barrier
Between it is smaller, the air agitation between vehicle and sound barrier will aggravate, and form strong train parting, generate air flowing, make sound-screen
The air pressure for hindering surface changes, and generates impact force, and speed is faster to sound barrier, air is bigger to the impact of sound barrier.And
And impact recited above can reach in a flash the maximum value that the sound barrier can bear at certain, be easy to cause in high-speed railway
The sound barrier being connected by screw bolts shortly occurs loosening occurring with phenomena such as concrete Local Cracking in succession after operation.Air
Not only have an adverse effect to the impact of sound barrier to the fixation of sound barrier, but also be easy to cause the damage of sound barrier, influence sound
The service life of barrier.
Invention content
The purpose of the present invention is to provide a kind of automatic deloading sound barrier, which can slow down train parting to sound barrier
Impact, extend sound barrier service life.
In order to achieve the above objectives, base case of the invention is as follows：A kind of automatic deloading sound barrier, including pedestal and two
Column, the pedestal fix on the ground, and two root posts are separately fixed at pedestal both ends；Further include top plate, middle plate and under
Laminate；Top plate, middle plate and lower plywood are sequentially fixed between two root posts from top to bottom, and the top plate and lower plywood are equal
For acoustic board, the middle plate is sound insulationg board, and the middle plate is equipped with multiple gas channels, is equipped with around the gas channel
Annular air-pocket.
The working principle and beneficial effect of the present invention is as follows：Top plate and lower plywood can absorb noise with straight tackling, rise
To soundproof effect.Middle plate is sound insulationg board, it may have certain soundproof effect.Gas channel is equipped on middle plate, works as automobile
When crossing, the generated air flowed can pass through from gas channel, reduce impact of the air to sound barrier.In gas channel
Surrounding is equipped with annular air-pocket.When automobile driving speed is very fast, the air flowing of generation is violent.Air is passing through gas channel
When, the pressure of annular air-pocket is increased, compresses annular air-pocket.Then annular air-pocket is shunk, and air stream is accelerated in gas channel increase
It is dynamic, the size of gas channel is realized according to speed and automatically adjusted, reduces the impact that air generates sound barrier.Moreover, air-flow
Channel can play the role of connecting the space between sound barrier and automobile and external environment.When automobile high-speed crosses,
Negative pressure can be generated between automobile and sound barrier, and gas channel can play the role of connection, extraneous air can be led to by air-flow
Road is entered in the space between automobile and sound barrier, weakens negative pressure, reduces the frequency that train parting generates.This invention removes wind
Load reduces the fatigue rupture of train parting and natural wind load to noise barrier structure, so as to reach to the adverse effect of sound barrier
The purpose for extending barrier structure maintenance cycle and service life has been arrived, use cost is greatly saved.
Preferred embodiment one：As the preferred embodiment of basic scheme, top plate and lower plywood are formed by inside and outside two layers, outer layer
For sound-absorbing material, internal layer is sound barrier plastic-steel inner frame, and such steel inner frame plays the role of supporting and fixing, it is ensured that top plate
It installs and stablizes with lower plywood, and sound-absorbing material can then play the effect of sound insulation.
Preferred embodiment two：Preferably one preferred embodiment, the pedestal are concrete structure, and concrete structure is firm
Gu and with soundproof effect.
Preferred embodiment three：Preferably two preferred embodiment, the fixation of top plate, lower plywood utilize strap bolt angle of spot hole
Steel connects plate inner frame with column with bolt, easy to connect in this way and easy for removal and installation.
Preferred embodiment four：Preferably three be preferred embodiment, and the sound-absorbing material is acoustical cotton, and acoustical cotton is not perishable
It is rotten, the corrosion of various fungies, acid, salt and hydrocarbon can be resisted.
Preferred embodiment five：Preferably four preferred embodiment, the gas channel cross section are in polygon, i.e. air-flow
Channel has multiple faces, sound wave that can cut down acoustic wave energy in gas channel by the reflection in multiple faces after entering gas channel,
Weaken the propagation distance of sound wave, make soundproof effect more preferable.
Preferred embodiment six：Preferably five preferred embodiment, the gas channel is in prismatic table shape, because of vehicle travels
During sound barrier, the direction of traveling is usually fixed.The train parting direction generated is also fixed, and gas channel is made rib
Platform shape can then reduce the air circulation of other direction.
Description of the drawings
Fig. 1 is the structure diagram of automatic deloading sound barrier embodiment of the present invention.
Specific embodiment
Below by specific embodiment, the present invention is described in further detail：
Reference numeral in Figure of description includes：Pedestal 10, lower plywood 20, middle plate 30, gas channel 31, annular gas
Capsule 32, top plate 40, column 50.
Embodiment is substantially as shown in Figure 1：A kind of automatic deloading sound barrier, including top plate 40, middle plate 30, lower plywood
20th, pedestal 10 and two root posts 50.Pedestal 10 is concrete structure, and it is secured that pedestal 10 fixes concrete structure on the ground, and
And with soundproof effect.Two root posts 50 are separately fixed at 10 both ends of pedestal, and top plate 40, middle plate 30 and lower plywood 20 are from upper
It being sequentially fixed under between two root posts 50, top plate 40 and lower plywood 20 are acoustic board, and middle plate 30 is sound insulationg board, in
Laminate 30 is equipped with multiple gas channels 31, and annular air-pocket 32 is equipped with around gas channel 31.Top plate 40 and lower plywood 20 by
Inside and outside two layers of composition, outer layer are sound-absorbing material, and internal layer is sound barrier plastic-steel inner frame, and such steel inner frame plays support and consolidates
Fixed effect, it is ensured that top plate 40 and the installation of lower plywood 20 are stablized, and sound-absorbing material can then play the effect of sound insulation.The implementation
In example, sound-absorbing material is acoustical cotton, and acoustical cotton imputrescibility can resist various microorganisms, fungi, acid, salt and hydrocarbon
Corrosion.The fixation of top plate 40, lower plywood 20 is connected plate inner frame and column 50 using the angle steel and bolt in strap bolt hole,
It is easy to connect in this way and easy for removal and installation.
31 cross section of gas channel is hexagonal, i.e., gas channel 31 has multiple faces, sound wave can after entering gas channel 31
With the reflection by multiple faces in gas channel 31, acoustic wave energy is cut down, weakens the propagation distance of sound wave, makes soundproof effect more
It is good.Gas channel is in prismatic table shape, because during vehicle travels sound barrier, the direction of traveling is usually fixed.The row generated
Vehicle wind direction is also fixed, and gas channel 31 is made prismatic table shape, then can reduce the air circulation of other direction.
Top plate 40 and lower plywood 20 can absorb noise with straight tackling, play soundproof effect.Middle plate 30 is sound insulationg board,
Also there is certain soundproof effect.Gas channel 31 is equipped on middle plate 30, when vehicle travels, generated flowing
Air can pass through from gas channel 31, reduce impact of the air to sound barrier.Annular air-pocket 32 is equipped with around gas channel 31.
When automobile driving speed is very fast, the air flowing of generation is violent.Air is when by gas channel 31, to annular air-pocket 32
Pressure increases, and compresses annular air-pocket 32.Then annular air-pocket 32 is shunk, and gas channel 31 increases, and is accelerated air flowing, is realized basis
Speed and the size for automatically adjusting gas channel 31 reduce the impact that air generates sound barrier.Moreover, gas channel can rise
To the space between connection sound barrier and automobile and the effect of external environment.When automobile high-speed crosses, in automobile and sound-screen
Negative pressure can be generated between barrier, and gas channel can play the role of connection, extraneous air can be entered by gas channel 31
In space between automobile and sound barrier, weaken negative pressure, reduce the frequency that train parting generates.This invention removes wind load to sound
The adverse effect of barrier reduces the fatigue rupture of train parting and natural wind load to noise barrier structure, extends so as to reach
The purpose of barrier structure maintenance cycle and service life, is greatly saved use cost.
Above-described is only the embodiment of the present invention, and the common sense such as well known concrete structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these should also be considered as protection scope of the present invention, these all do not interfere with what the present invention was implemented
Effect and practical applicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (4)
1. a kind of automatic deloading sound barrier, including pedestal and two root posts, the pedestal fixes on the ground, two root posts difference
It is fixed on pedestal both ends；It is characterized in that, further include top plate, middle plate and lower plywood；Top plate, middle plate and lower plywood from
Between being sequentially fixed at two root posts under, the top plate and lower plywood are acoustic board, and the middle plate is sound insulationg board,
The middle plate is equipped with multiple gas channels, and annular air-pocket is equipped with around the gas channel；The pedestal is concrete knot
Structure.
2. automatic deloading sound barrier according to claim 1, which is characterized in that the top plate, the fixation of lower plywood are sharp
Plate inner frame is connected with column with bolt with strap bolt angle of spot hole steel.
3. automatic deloading sound barrier according to claim 2, which is characterized in that the gas channel cross section is in polygon
Shape.
4. the automatic deloading sound barrier according to Claims 2 or 3, which is characterized in that the gas channel is in prismatic table shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492485.XA CN106049301B (en) | 2016-06-29 | 2016-06-29 | Automatic deloading sound barrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610492485.XA CN106049301B (en) | 2016-06-29 | 2016-06-29 | Automatic deloading sound barrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106049301A CN106049301A (en) | 2016-10-26 |
| CN106049301B true CN106049301B (en) | 2018-07-03 |
Family
ID=57167422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610492485.XA Active CN106049301B (en) | 2016-06-29 | 2016-06-29 | Automatic deloading sound barrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106049301B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114808779A (en) * | 2022-04-17 | 2022-07-29 | 石家庄铁道大学 | Double-layer staggered porous sound barrier device with active tuning wind load function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04312607A (en) * | 1991-04-11 | 1992-11-04 | Taisei Corp | Vibration-damping structure for ground |
| JPH09177041A (en) * | 1995-12-22 | 1997-07-08 | Matsushita Electric Works Ltd | Radio wave transmission type sound insulating panel |
| JP2003090014A (en) * | 2001-07-11 | 2003-03-28 | Unix:Kk | Sound absorption structure and sound-insulating wall top-section sound absorber |
| JP4027068B2 (en) * | 2001-10-11 | 2007-12-26 | 昭和電線デバイステクノロジー株式会社 | Sound absorbing material |
| CN104612071A (en) * | 2015-02-10 | 2015-05-13 | 华东交通大学 | Adjustable automatic load-reduction sound barrier |
| CN205822036U (en) * | 2016-06-29 | 2016-12-21 | 广州恒成智道信息科技有限公司 | Automatic deloading sound barrier |
-
2016
- 2016-06-29 CN CN201610492485.XA patent/CN106049301B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04312607A (en) * | 1991-04-11 | 1992-11-04 | Taisei Corp | Vibration-damping structure for ground |
| JPH09177041A (en) * | 1995-12-22 | 1997-07-08 | Matsushita Electric Works Ltd | Radio wave transmission type sound insulating panel |
| JP2003090014A (en) * | 2001-07-11 | 2003-03-28 | Unix:Kk | Sound absorption structure and sound-insulating wall top-section sound absorber |
| JP4027068B2 (en) * | 2001-10-11 | 2007-12-26 | 昭和電線デバイステクノロジー株式会社 | Sound absorbing material |
| CN104612071A (en) * | 2015-02-10 | 2015-05-13 | 华东交通大学 | Adjustable automatic load-reduction sound barrier |
| CN205822036U (en) * | 2016-06-29 | 2016-12-21 | 广州恒成智道信息科技有限公司 | Automatic deloading sound barrier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106049301A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104612071B (en) | Adjustable automatic deloading sound barrier | |
| CN205822036U (en) | Automatic deloading sound barrier | |
| Wardlaw | The improvement of aerodynamic performance | |
| CN204475204U (en) | Adjustable automatic deloading sound barrier | |
| CN103016025A (en) | Buffer structure of double-track tunnel portal of high-speed rail | |
| CN106049301B (en) | Automatic deloading sound barrier | |
| CN110820609B (en) | Roof beam canopy integration dangerous rock rockfall protection shed tunnel | |
| CN205711868U (en) | A kind of urban road environmental-protection hurdle | |
| CN203807966U (en) | Roadbed cement particle board folding type sound barrier | |
| CN202913368U (en) | Sound barrier top noise reduction device | |
| CN108301323B (en) | Bridge deck wave-proof anti-collision guardrail of cross-sea bridge | |
| CN209243600U (en) | A kind of sound absorption sound barrier | |
| CN208266718U (en) | A kind of water conservancy diversion radix saposhnikoviae sound barrier | |
| CN106758902A (en) | Railway integrated curved form sound barrier | |
| CN201770950U (en) | Sound barrier for high speed railway | |
| CN102261045B (en) | Nose-shaped metal sound barrier unit plate for high-speed railway | |
| CN105803964B (en) | Hyperboloid sawtooth pattern damping-controllable off-load barrier | |
| JP2016132928A (en) | Buffer construction | |
| CN103016024A (en) | Buffer structure of single-track tunnel portal of high-speed rail | |
| Jiang et al. | Wind Tunnel Study on Aerodynamic Characteristics of the Train on Viaducts with a New Type of Wind–Noise Barrier Under Cross Wind | |
| CN206359909U (en) | Railway integrated curved form sound barrier | |
| CN205576774U (en) | Controllable formula of hyperboloid sawtooth pattern damping subtracts carries protective screen | |
| CN204143867U (en) | A kind of U-shaped detachable composite acoustic barrier | |
| CN207582342U (en) | A kind of adjustable automatic deloading sound barrier | |
| CN203008927U (en) | High-speed railway single-track tunnel portal buffer structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |