CN106968186A - A kind of bridge denoising device - Google Patents
A kind of bridge denoising device Download PDFInfo
- Publication number
- CN106968186A CN106968186A CN201710346261.2A CN201710346261A CN106968186A CN 106968186 A CN106968186 A CN 106968186A CN 201710346261 A CN201710346261 A CN 201710346261A CN 106968186 A CN106968186 A CN 106968186A
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- China
- Prior art keywords
- sound
- fixedly connected
- poly
- soundboard
- noise reduction
- 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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- 230000009467 reduction Effects 0.000 claims abstract description 48
- 229920000742 Cotton Polymers 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 208000032370 Secondary transmission Diseases 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 241000219146 Gossypium Species 0.000 description 10
- 230000008569 process Effects 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241001080929 Zeugopterus punctatus Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012549 training Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- E01F8/0023—Details, e.g. foundations
-
- 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
- E01F8/0094—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic constructions for generation of phase shifting
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of bridge denoising device, including base, baffle plate is fixedly connected with the top of base, top plate is fixedly connected with the top of baffle plate, the outer surface of baffle plate is provided with sound-absorbing bar, the outer surface of sound-absorbing bar offers the sound-absorption hole being spaced substantially equidistant, one end of sound-absorbing bar runs through baffle plate and extends to the inside of baffle plate, sound-absorbing bar is provided with four coiled pipes being spaced substantially equidistant through one end of baffle plate, the one end of coiled pipe away from sound-absorbing bar is provided with poly- soundboard, the one end of coiled pipe away from sound-absorbing bar runs through poly- soundboard and extends to the inside of poly- soundboard, the inwall of poly- soundboard is fixedly connected with symmetrical deck, the first acoustical cotton is provided between two decks, the two ends of first acoustical cotton are fixedly connected with two relative one sides of deck respectively.The present invention, realizes the consumption to noise, effectively reduces the noise that road and bridge are spread out of, it is to avoid forms sound pollution, reaches the purpose to road and bridge noise reduction, improves the quality of the life for closing on resident.
Description
Technical field
The present invention relates to bridge technology field, specially a kind of bridge denoising device.
Background technology
Bridge, refers generally to be erected in rivers,lakes and seas, the structures for making traffic etc. smoothly to pass through, modern to adapt to
The transportation industry of high speed development, bridge is also extended to across mountain stream and unfavorable geology or meets other traffic needs and erection makes
Current more easily building, bridge is typically made up of superstructure, substructure and bearing and attached structure, top knot
Structure is also known as bridge span structure, is across the primary structure of obstacle, and substructure includes abutment, bridge pier and basis, and bearing is spanning knot
The load transfer device that the supporting place of structure and bridge pier or abutment is set, attached structure then refer to transition slab at bridge head, truncated cone banking, shore protection and
Training works etc..
Requirement with present expanding economy and people to condition of going on a journey constantly is heightened, and bridge is repaiied more and more, with city
The development that town is built, in order to promote urban traffic unimpeded, the intensive place of vehicle flowrate has often built overpass, and bridge noise
More intensive place, the pursuit along with people to quality of the life are produced, if the noise produced can not effectively suppress,
Resident and pedestrian that meeting severe jamming closes on, have a strong impact on quality of the life, and noise pollution turns into very important in modernization construction
The problem of.
The content of the invention
It is an object of the invention to provide a kind of bridge denoising device, possess the advantage of noise reduction, solve because vehicle is made an uproar shadow
Ring the problem of closing on resident living quality.
To achieve the above object, the present invention provides following technical scheme：A kind of bridge denoising device, including base, it is described
It is fixedly connected with the top of base at the top of baffle plate, the baffle plate and is fixedly connected with top plate, the outer surface of the baffle plate is provided with
Sound-absorbing bar, the outer surface of the sound-absorbing bar offers the sound-absorption hole being spaced substantially equidistant, and baffle plate is run through simultaneously in one end of the sound-absorbing bar
Extend to the inside of baffle plate.
The sound-absorbing bar is provided with four coiled pipes being spaced substantially equidistant through one end of baffle plate, and the coiled pipe is away from suction
One end of sound bar is provided with poly- soundboard, and the one end of the coiled pipe away from sound-absorbing bar is through poly- soundboard and extends in poly- soundboard
Portion.
The inwall of the poly- soundboard is fixedly connected between symmetrical deck, two decks and is provided with the first acoustical cotton,
The two ends of first acoustical cotton are fixedly connected with two relative one sides of deck respectively, and the poly- soundboard is away from coiled pipe
One end is provided with sleeve pipe, and described sleeve pipe is fixedly connected close to one end of poly- soundboard with one side of the poly- soundboard away from coiled pipe, institute
First sound guide tube that is internally provided with of sleeve pipe is stated, one end of first sound guide tube runs through poly- soundboard and extends to the interior of poly- soundboard
Portion, the described one end of first sound guide tube away from poly- soundboard is provided with noise reduction ball, the described one end of first sound guide tube away from poly- soundboard
The through hole opened up with noise reduction ball one side is connected, and the one side of the noise reduction ball away from the first sound guide tube is provided with the second leading note
Pipe, second sound guide tube is connected close to one end of noise reduction ball with the through hole that noise reduction ball another side is opened up.
The noise reduction ball is internally provided with fix bar, and the two ends of the fix bar are fixed with the inwall of noise reduction ball connects
Connect, the outer surface of the fix bar is fixedly connected with four dividing plates being spaced substantially equidistant, the one end of the dividing plate away from fix bar
It is fixedly connected with the inwall of noise reduction ball, the outer surface of four dividing plates offers voice guide hole, and the inwall of the voice guide hole, which is fixed, to be connected
Connect by the second acoustical cotton.
It is preferred that, the bottom of the base is fixedly connected with weightening plate.
It is preferred that, the noise reduction ball is internally provided with symmetrical acoustical panel, and the outer surface of the acoustical panel is fixed connects
Spring is connected to, the one end of the spring away from acoustical panel is fixedly connected with the inwall of noise reduction ball.
It is preferred that, the outside of first sound guide tube and the second sound guide tube is provided with vacuum air bag, the vacuum air bag
Outer surface of the one side respectively with the first sound guide tube and the second sound guide tube be in contact, the another side of the vacuum air bag and set
The inwall of pipe is fixedly connected.
It is preferred that, the outer surface of the baffle plate is fixedly connected with connecting key, and the one end of the connecting key away from baffle plate is fixed
It is connected with protective pad.
It is preferred that, the top of the top plate is curved, and rubber blanket is fixedly connected with the top of the top plate.
Compared with prior art, beneficial effects of the present invention are：
1st, the present invention is fixedly connected with weightening plate by the bottom of base, increases overall stability, it is to avoid baffle plate is in storm wind day
Damaged in gas, improve overall practicality and reasonability.
2nd, the present invention is curved by the top of top plate, and rubber blanket is fixedly connected with the top of top plate, improves the resistance to of top plate
With property, damage of the natural environment in the external world to top plate can effectively be slowed down by rubber blanket, overall service life is improved.
3rd, the present invention is fixedly connected with connecting key by the outer surface of baffle plate, and the one end of connecting key away from baffle plate is fixedly connected
There is protective pad, improve the overall durability used, it is to avoid vehicle accidental impact baffle plate, cause baffle plate seriously to damage, improve overall
The security and feasibility used.
4th, the present invention is by the symmetrical acoustical panel that is internally provided with of noise reduction ball, and the outer surface of acoustical panel is fixedly connected with
Spring, the one end of spring away from acoustical panel is fixedly connected with the inwall of noise reduction ball, enters noise reduction by the first sound guide tube in noise
During the inside of ball, noise, the energy of the secondary transmission of reducing noise can be effectively consumed using spring and acoustical panel.
5th, the present invention is provided with vacuum air bag, the one of vacuum air bag by the outside of the first sound guide tube and the second sound guide tube
Outer surface of the side respectively with the first sound guide tube and the second sound guide tube is in contact, the another side of vacuum air bag and the inwall of sleeve pipe
It is fixedly connected, improves the effect of overall noise reduction.
Brief description of the drawings
Fig. 1 is structural side view of the present invention；
Fig. 2 is the structure front view of baffle plate of the present invention；
Fig. 3 is the section of structure of baffle plate of the present invention；
Fig. 4 is the structure sectional view of noise reduction ball of the present invention.
In figure：1 base, 2 baffle plates, 3 top plates, 4 sound-absorbing bars, 5 coiled pipes, 6 poly- soundboards, 7 decks, 8 first acoustical cottons, 9 sets
Pipe, 10 first sound guide tubes, 11 noise reduction balls, 12 second sound guide tubes, 13 fix bars, 14 dividing plates, 15 voice guide holes, 16 second acoustical cottons,
17 weightening plates, 18 acoustical panels, 19 springs, 20 vacuum air bags, 21 connecting keys, 22 protective pads, 23 rubber blankets.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Refer to Fig. 1-4, a kind of bridge denoising device, including base（1）, it is characterised in that：Base（1）Top fix
It is connected with baffle plate（2）, base（1）Bottom be fixedly connected with weightening plate（17）, increase overall stability, it is to avoid baffle plate（2）
Damaged in storm wind weather, improve overall practicality and reasonability, baffle plate（2）Top be fixedly connected with top plate（3）, top plate
（3）Top it is curved, top plate（3）Top be fixedly connected with rubber blanket（23）, improve top plate（3）Durability, by rubber
Pad（23）The natural environment in the external world can effectively be slowed down to top plate（3）Damage, improve overall service life, baffle plate（2）'s
Outer surface is provided with sound-absorbing bar（4）, baffle plate（2）Outer surface be fixedly connected with connecting key（21）, connecting key（21）Away from baffle plate
（2）One end be fixedly connected with protective pad（22）, improve the overall durability used, it is to avoid vehicle accidental impact baffle plate（2）, lead
Cause baffle plate（2）Serious infringement, improves the overall security and feasibility used, sound-absorbing bar（4）Outer surface offer it is equidistant
The sound-absorption hole of arrangement, sound-absorbing bar（4）One end run through baffle plate（2）And extend to baffle plate（2）Inside.
Sound-absorbing bar（4）Through baffle plate（2）One end be provided with four coiled pipes being spaced substantially equidistant（5）, coiled pipe（5）Far
From sound-absorbing bar（4）One end be provided with poly- soundboard（6）, coiled pipe（5）Away from sound-absorbing bar（4）One end run through poly- soundboard（6）And
Extend to poly- soundboard（6）Inside.
Poly- soundboard（6）Inwall be fixedly connected with symmetrical deck（7）, two decks（7）Between be provided with the first suction
Sound cotton（8）, the first acoustical cotton（8）Two ends respectively with two decks（7）Relative one side is fixedly connected, poly- soundboard（6）Far
From coiled pipe（5）One end be provided with sleeve pipe（9）, sleeve pipe（9）Close to poly- soundboard（6）One end and poly- soundboard（6）Away from snakelike
Pipe（5）One side be fixedly connected, sleeve pipe（9）Be internally provided with the first sound guide tube（10）, the first sound guide tube（10）One end
Through poly- soundboard（6）And extend to poly- soundboard（6）Inside, the first sound guide tube（10）Away from poly- soundboard（6）One end be provided with
Noise reduction ball（11）, noise reduction ball（11）Be internally provided with symmetrical acoustical panel（18）, acoustical panel（18）Outer surface fix connect
It is connected to spring（19）, spring（19）Away from acoustical panel（18）One end and noise reduction ball（11）Inwall be fixedly connected, it is logical in noise
Cross the first sound guide tube（10）Into noise reduction ball（11）Inside when, utilize spring（19）And acoustical panel（18）Can effectively it consume
Noise, the energy of the secondary transmission of reducing noise, the first sound guide tube（10）Away from poly- soundboard（6）One end and noise reduction ball（11）Side
The through hole connection that face is opened up, the first sound guide tube（10）With the second sound guide tube（12）Outside be provided with vacuum air bag（20）, very
Air bag（20）One side respectively with the first sound guide tube（10）With the second sound guide tube（12）Outer surface be in contact, vacuum air bag
（20）Another side and sleeve pipe（9）Inwall be fixedly connected, improve the effect of overall noise reduction, noise reduction ball（11）Away from first
Sound guide tube（10）One side be provided with the second sound guide tube（12）, the second sound guide tube（12）Close to noise reduction ball（11）One end with disappearing
Sound ball（11）The through hole connection that another side is opened up.
Noise reduction ball（11）Be internally provided with fix bar（13）, fix bar（13）Two ends with noise reduction ball（11）Inwall
It is fixedly connected, fix bar（13）Outer surface be fixedly connected with four dividing plates being spaced substantially equidistant（14）, dividing plate（14）Away from solid
Fixed pole（13）One end and noise reduction ball（11）Inwall be fixedly connected, four dividing plates（14）Outer surface offer voice guide hole
（15）, voice guide hole（15）Inwall be fixedly connected by the second acoustical cotton（16）.
In summary：The bridge denoising device, passes through two decks（7）Between be provided with the first acoustical cotton（8）And leading note
Hole（15）Inwall be fixedly connected by the second acoustical cotton（16）, the sound for reducing noise can be effectively adsorbed, then pass through poly- sound
Plate（6）The noise reduction ball that side is set（11）, noise reduction ball（11）Be internally provided with symmetrical acoustical panel（18）, acoustical panel（18）
Outer surface be fixedly connected with spring（19）, spring（19）Away from acoustical panel（18）One end and noise reduction ball（11）Inwall fix
Connection, the first sound guide tube is passed through in noise（10）Into noise reduction ball（11）Inside when, utilize spring（19）And acoustical panel（18）
Noise can be made to produce multiple reflections transmission, the energy of effective secondary transmission of reducing noise is solved because vehicle influence of making an uproar closes on
The problem of resident living quality.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions.By sentence " including one ... the key element limited, it is not excluded that
Also there is other identical element in the process including the key element, method, article or equipment ".
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of bridge denoising device, including base（1）, it is characterised in that：The base（1）Top be fixedly connected with baffle plate
（2）, the baffle plate（2）Top be fixedly connected with top plate（3）, the baffle plate（2）Outer surface be provided with sound-absorbing bar（4）, institute
State sound-absorbing bar（4）Outer surface offer the sound-absorption hole being spaced substantially equidistant, the sound-absorbing bar（4）One end run through baffle plate（2）And
Extend to baffle plate（2）Inside；
The sound-absorbing bar（4）Through baffle plate（2）One end be provided with four coiled pipes being spaced substantially equidistant（5）, the coiled pipe
（5）Away from sound-absorbing bar（4）One end be provided with poly- soundboard（6）, the coiled pipe（5）Away from sound-absorbing bar（4）One end through poly-
Soundboard（6）And extend to poly- soundboard（6）Inside；
The poly- soundboard（6）Inwall be fixedly connected with symmetrical deck（7）, two decks（7）Between be provided with the first suction
Sound cotton（8）, first acoustical cotton（8）Two ends respectively with two decks（7）Relative one side is fixedly connected, the poly- sound
Plate（6）Away from coiled pipe（5）One end be provided with sleeve pipe（9）, described sleeve pipe（9）Close to poly- soundboard（6）One end and poly- soundboard
（6）Away from coiled pipe（5）One side be fixedly connected, described sleeve pipe（9）Be internally provided with the first sound guide tube（10）, described
One sound guide tube（10）One end run through poly- soundboard（6）And extend to poly- soundboard（6）Inside, first sound guide tube（10）It is remote
Poly- soundboard（6）One end be provided with noise reduction ball（11）, first sound guide tube（10）Away from poly- soundboard（6）One end and noise reduction ball
（11）The through hole connection that one side is opened up, the noise reduction ball（11）Away from the first sound guide tube（10）One side be provided with second and lead
Sound tube（12）, second sound guide tube（12）Close to noise reduction ball（11）One end and noise reduction ball（11）The through hole that another side is opened up
Connection；
The noise reduction ball（11）Be internally provided with fix bar（13）, the fix bar（13）Two ends with noise reduction ball（11）'s
Inwall is fixedly connected, the fix bar（13）Outer surface be fixedly connected with four dividing plates being spaced substantially equidistant（14）, it is described every
Plate（14）Away from fix bar（13）One end and noise reduction ball（11）Inwall be fixedly connected, four dividing plates（14）Outer surface open
Provided with voice guide hole（15）, the voice guide hole（15）Inwall be fixedly connected by the second acoustical cotton（16）.
2. a kind of bridge denoising device according to claim 1, it is characterised in that：The base（1）Bottom fix connect
It is connected to weightening plate（17）.
3. a kind of bridge denoising device according to claim 1, it is characterised in that：The noise reduction ball（11）Inside set
There is symmetrical acoustical panel（18）, the acoustical panel（18）Outer surface be fixedly connected with spring（19）, the spring（19）Far
From acoustical panel（18）One end and noise reduction ball（11）Inwall be fixedly connected.
4. a kind of bridge denoising device according to claim 1, it is characterised in that：First sound guide tube（10）With second
Sound guide tube（12）Outside be provided with vacuum air bag（20）, the vacuum air bag（20）One side respectively with the first sound guide tube
（10）With the second sound guide tube（12）Outer surface be in contact, the vacuum air bag（20）Another side and sleeve pipe（9）Inwall
It is fixedly connected.
5. a kind of bridge denoising device according to claim 1-4, it is characterised in that：The baffle plate（2）Outer surface consolidate
Surely it is connected with connecting key（21）, the connecting key（21）Away from baffle plate（2）One end be fixedly connected with protective pad（22）.
6. a kind of bridge denoising device according to claim 1-5, it is characterised in that：The top plate（3）Top be in arc
Shape, the top plate（3）Top be fixedly connected with rubber blanket（23）.
7. a kind of bridge noise-reduction method, it is characterised in that：The bridge denoising device, passes through two decks（7）Between be provided with
One acoustical cotton（8）And voice guide hole（15）Inwall be fixedly connected by the second acoustical cotton（16）, can effectively adsorb reduction noise
The sound, then pass through poly- soundboard（6）The noise reduction ball that side is set（11）, noise reduction ball（11）Be internally provided with symmetrical noise reduction
Plate（18）, acoustical panel（18）Outer surface be fixedly connected with spring（19）, spring（19）Away from acoustical panel（18）One end with disappearing
Sound ball（11）Inwall be fixedly connected, pass through the first sound guide tube in noise（10）Into noise reduction ball（11）Inside when, utilize bullet
Spring（19）And acoustical panel（18）Noise can be made to produce multiple reflections transmission, the energy of effective secondary transmission of reducing noise is solved
Because vehicle make an uproar influence close on resident living quality the problem of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346261.2A CN106968186B (en) | 2017-05-17 | 2017-05-17 | A kind of bridge denoising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346261.2A CN106968186B (en) | 2017-05-17 | 2017-05-17 | A kind of bridge denoising device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968186A true CN106968186A (en) | 2017-07-21 |
| CN106968186B CN106968186B (en) | 2019-06-14 |
Family
ID=59325708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710346261.2A Expired - Fee Related CN106968186B (en) | 2017-05-17 | 2017-05-17 | A kind of bridge denoising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968186B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202577174U (en) * | 2012-04-16 | 2012-12-05 | 朱瑜蓉 | Noise reduction shield |
| CN204401489U (en) * | 2015-01-19 | 2015-06-17 | 黑龙江省公路勘察设计院 | Road and bridge noise reduction device |
| WO2016020870A1 (en) * | 2014-08-06 | 2016-02-11 | Giampaolo Tizzoni | Supporting structure for a noise barrier |
| CN205116045U (en) * | 2015-11-10 | 2016-03-30 | 郑毅 | Noise device falls in road and bridge |
| CN106245549A (en) * | 2016-10-09 | 2016-12-21 | 铁道第三勘察设计院集团有限公司 | Urban track traffic sound barrier efficiently absorbs sound cell board and method for designing thereof |
| 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 |
| KR20170051007A (en) * | 2015-11-02 | 2017-05-11 | 유제형 | Sound absorption apparatus using resonance for low frequency band |
-
2017
- 2017-05-17 CN CN201710346261.2A patent/CN106968186B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202577174U (en) * | 2012-04-16 | 2012-12-05 | 朱瑜蓉 | Noise reduction shield |
| WO2016020870A1 (en) * | 2014-08-06 | 2016-02-11 | Giampaolo Tizzoni | Supporting structure for a noise barrier |
| CN204401489U (en) * | 2015-01-19 | 2015-06-17 | 黑龙江省公路勘察设计院 | Road and bridge noise reduction device |
| KR20170051007A (en) * | 2015-11-02 | 2017-05-11 | 유제형 | Sound absorption apparatus using resonance for low frequency band |
| CN205116045U (en) * | 2015-11-10 | 2016-03-30 | 郑毅 | Noise device falls in road and bridge |
| CN106245549A (en) * | 2016-10-09 | 2016-12-21 | 铁道第三勘察设计院集团有限公司 | Urban track traffic sound barrier efficiently absorbs sound cell board and method for designing thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106968186B (en) | 2019-06-14 |
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