CN101240526A - Sound barrier used for viaduct - Google Patents
Sound barrier used for viaduct Download PDFInfo
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- CN101240526A CN101240526A CNA2008100198977A CN200810019897A CN101240526A CN 101240526 A CN101240526 A CN 101240526A CN A2008100198977 A CNA2008100198977 A CN A2008100198977A CN 200810019897 A CN200810019897 A CN 200810019897A CN 101240526 A CN101240526 A CN 101240526A
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- sound barrier
- sound
- backboard
- back plate
- reinforcing rib
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Abstract
The invention discloses a sound screen for a viaduct, comprising a screen support and a cable support disposed on the screen support. The screen support comprises an integrated prefab active powder concrete bottom beam, a back plate and a beam. The bottom beam is disposed at the lower end of the back plate, the beam is disposed at the upper end of the back plate, and the cable support is disposed on the said back plate. A protruding portion is disposed at the lower end of the back plate, and the included angle between the protruding portion and the bottom beam is a right angle. A composite sound absorbing layer is disposed on the surface of the back plate. Comparing with prior art, the invented sound screen comprises a bottom beam, a back plate and a beam which are integrated and prefabricated in factory by using a shaped mould plate. The sound screen is connected with the bridge by connecting the bottom beam of the sound screen with the bridge by bolts, which can be assembled on site simply. The sound screen is produced as an integral body, and steel columns and ALC protective fence plates of traditional sound screen are saved, so that cost and maintenance are reduced.
Description
Technical field:
The present invention relates to a kind of sound barrier that runs on the noise that subway produced on the elevated bridge that is used to isolate.
Background technology:
Subway goes out general elevated line behind the ground, and elevated bridge passes through the urban district, and noise becomes subway to one of pollution that surrounding enviroment caused.In order to solve this contradiction, need control sensitive spot to noise in subway elevated line two side areas, take noise reduction measures such as sound barrier.
Tradition subway sound barrier mainly adopts the form of column plate, and with the shared H shaped steel of cable tray.Simultaneously, the outer guardrail board (light material of common available ALC) that is provided with in addition of surveying of sound barrier generally also is fixed on the H shaped steel.
The major defect of tradition sound barrier is as follows:
1, adopt traditional sound barrier, the amalgamation assembly is many, and H shaped steel column, guardrail board, sound barrier unit board etc. are arranged, and not only integral body feels in disorder, and on-site construction processes is many, and the construction operation amount is big, inconvenient maintenance.
2, main at present traditional acoustic barrier material durability and the self-cleaning ability that adopts is not strong, the long-term use, and appearance is easily dirty, and application life is not long.
3, steel corrosion, maintenance cost height, poor durability
Summary of the invention:
Technical problem to be solved by this invention is at above-mentioned the deficiencies in the prior art, and provides a kind of construction convenient, satisfies the integral type sound barrier of decrease of noise functions requirement.
For solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of sound barrier that is used for elevated bridge, comprise barrier stent and be arranged on cable bearer on the support, described support comprises the prefabricated RPC of integral type (RPC) bottom girder, backboard and crossbeam, described bottom girder is arranged on the lower end of backboard, described crossbeam is arranged on the upper end of backboard, and described cable bearer is arranged on the described backboard.
Lower end at described backboard also is provided with an extension, and the angle of this extension and bottom girder is the right angle.
In described backboard, be provided with first reinforcing rib.
On described backboard, also be provided with ribs, in this ribs, be provided with second reinforcing rib.
In described crossbeam, be provided with the 3rd reinforcing rib.
Surface at described backboard also is compounded with a sound-absorbing material layer.
The material of described first reinforcing rib is the compound muscle material that basalt fibre and glass fiber are composited.
The material of described second reinforcing rib is the compound muscle material that basalt fibre and glass fiber are composited.
The material of described the 3rd reinforcing rib is the compound muscle material that basalt fibre and glass fiber are composited.
Compared with prior art, the present invention has following advantage:
1, easy construction: sound barrier of the present invention comprises bottom girder, backboard and crossbeam and adopts typified form to be prefabricated in the factory and forms an integral body, when sound barrier is connected with bridge, only the bottom girder of sound barrier need be connected by bolt with bridge and get final product the site assembly simple and convenient.
2, globality: sound barrier unit board, H shaped steel, cable bearer, ALC Bridge guardrail plate are made as a whole, saved traditional sound barrier shaped steel column and ALC guardrail board, reduced cost and maintenance.
3, aesthetic property: the inside and outside facade of structure is curved surface.Utilize the plasticity of material, view around cooperating can add color element, makes external surface rich color, finish height, and texture is good.Also can adopt clear-water concrete, keep the concrete true qualities, make that sound barrier is succinct with the bridge outward appearance, tone is consistent.
4, harmony: can be made into various ways, as making with reference to the side plate pattern of subway U type beam, making completely, the box-beam structure effect makes bridge landscape effect unification completely near U type beam appearance effect.
5, adopt at the backboard composite sound-absorbing material, to have made things convenient for height the acoustically effective of sound barrier, simultaneously, sound absorption material also has good self-cleaning property, good endurance, and long service life has strengthened self-cleaning ability.
6, can be used for supporting contact net column or rigid frame.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the I-I sectional drawing of figure one.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated, as shown in Figure 1 and Figure 2, a kind of compound muscle material enhanced activity powder concrete (RPC) that is used to isolate the noise that subway is sent out that runs on the elevated bridge is to call RPC in the following text, sound barrier.This sound barrier adopts RPC to build and forms, comprise barrier stent and be arranged on cable bearer 4 on the support, support comprises the prefabricated bottom girder of integral type 1, backboard 2 and crossbeam 5, bottom girder 1 is arranged on the lower end of backboard 2, crossbeam 5 is arranged on the upper end of backboard 2, and cable bearer 4 is arranged on the described backboard 2.Location and easy construction during for installation also are provided with an extension in the lower end of backboard 2, and the angle of this extension and bottom girder 1 is the right angle, so when mounted, just sound barrier can be suspended on the bridge 11 by this this right angle, install then.Be furnished with first reinforcing rib 6, second reinforcing rib 7, the 3rd reinforcing rib 8 and the 4th reinforcing rib 9 that are composited by basalt fibre and glass fiber in backboard 2, ribs 3, crossbeam 5 and the bottom girder respectively.RPC backboard 2 is met face sound absorption material is set.
Compound muscle material enhanced activity powder concrete sound barrier has utilized RPC intensity height (especially tensile strength is high especially), the characteristic that toughness is big, and superelevation impermeability and durability, thereby, can prolong sound barrier application life significantly; Also utilize its high compact and good working performance, made itself and the contacted surface of template have very high fineness, can reach the excellent decoration effect.
Compound muscle material is mixed by basalt fibre and glass fiber and is composited, both utilized the high and corrosion resistant advantage of basalt fibre intensity, also solved the higher problem of basalt fibre cost, overcome the weakness that glass fiber is not suitable for being used for alkaline environment again, thus, effectively strengthen the corrosion resistance of sound barrier unit structure, prolonged the application life of noise barrier structure, can also reduce the maintenance and repair expense of sound barrier in useful life period simultaneously.
The sound barrier sound absorption material is selected efficient and light weight acoustical boards such as expanded perlite or wood cement concrete for use, these sound absorption material inside have the perforation pore structure, it does not contain any pollutant, substantially be after adding that with hydraulic cementing materials, natural mineral matter other special additive is via specially treated, stir, molding moulding and getting, and the product that can be modulated into different unit weights, shape, color and outward appearance is to satisfy different designing requirements and mounting condition.
Claims (9)
1, a kind of sound barrier that is used for elevated bridge, comprise barrier stent and be arranged on cable bearer (4) on the support, it is characterized in that: described support comprises the prefabricated concrete bottom beam of integral type (1), backboard (2) and crossbeam (5), described bottom girder (1) is arranged on the lower end of backboard (2), described crossbeam (5) is arranged on the upper end of backboard (2), and described cable bearer (4) is arranged on the described backboard (2).
2, sound barrier according to claim 1 is characterized in that: the lower end at described backboard (2) also is provided with an extension, and the angle of this extension and bottom girder (1) is the right angle.
3, sound barrier according to claim 1 is characterized in that: be provided with first reinforcing rib (6) in described backboard (2).
4, according to claim 1,2 or 3 described sound barriers, it is characterized in that: on described backboard (2), also be provided with ribs (3), in this ribs (3), be provided with second reinforcing rib (7).
5, sound barrier according to claim 4 unit is characterized in that: be provided with the 3rd reinforcing rib (8) in described crossbeam (5), be provided with the 4th reinforcing rib (9) in described bottom girder (1).
6, sound barrier according to claim 5 is characterized in that: the surface at described backboard (2) also is compounded with a sound-absorbing material layer.
7, sound barrier according to claim 2 is characterized in that: the material of described first reinforcing rib (6) is the compound muscle material that basalt fibre and glass fiber are composited.
8, sound barrier according to claim 4 is characterized in that: the material of described second reinforcing rib (7) is the compound muscle material that basalt fibre and glass fiber are composited.
9, sound barrier according to claim 5, it is characterized in that: the material of described the 3rd reinforcing rib (8) is the compound muscle material that basalt fibre and glass fiber are composited, and the material of the 3rd reinforcing rib (9) is the compound muscle material that basalt fibre and glass fiber are composited.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100198977A CN101240526A (en) | 2008-03-21 | 2008-03-21 | Sound barrier used for viaduct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100198977A CN101240526A (en) | 2008-03-21 | 2008-03-21 | Sound barrier used for viaduct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101240526A true CN101240526A (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100198977A Pending CN101240526A (en) | 2008-03-21 | 2008-03-21 | Sound barrier used for viaduct |
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| Country | Link |
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| CN (1) | CN101240526A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071653A (en) * | 2010-12-24 | 2011-05-25 | 东南大学 | Ecological noise barrier |
| CN102587271A (en) * | 2012-03-28 | 2012-07-18 | 中铁二院工程集团有限责任公司 | Concrete wind shield structure of railway steel-trussed cable-stayed bridge |
| CN103485290A (en) * | 2013-09-25 | 2014-01-01 | 江苏远兴环保集团有限公司 | External-hanging sound barrier for rail transit |
| CN104480849A (en) * | 2014-12-16 | 2015-04-01 | 中南大学 | Rail transit noise reduction box type bridge and external bonding noise reduction method of rail transit box type bridge |
| CN105421257A (en) * | 2015-12-24 | 2016-03-23 | 江苏国强镀锌实业有限公司 | Cement-based non-metal sound barrier unit plate |
| CN106758903A (en) * | 2016-12-29 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | The totally-enclosed sound barrier of assembly concrete |
| CN112810830A (en) * | 2020-12-31 | 2021-05-18 | 四川省场道工程有限公司 | Construction method of reinforced concrete folded plate type flow guide screen for airport |
| CN115012342A (en) * | 2021-03-04 | 2022-09-06 | 北京华路安交通科技有限公司 | Sound barrier stand and guardrail body structure and sound barrier guardrail system |
-
2008
- 2008-03-21 CN CNA2008100198977A patent/CN101240526A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071653A (en) * | 2010-12-24 | 2011-05-25 | 东南大学 | Ecological noise barrier |
| CN102071653B (en) * | 2010-12-24 | 2013-04-24 | 东南大学 | Ecological noise barrier |
| CN102587271A (en) * | 2012-03-28 | 2012-07-18 | 中铁二院工程集团有限责任公司 | Concrete wind shield structure of railway steel-trussed cable-stayed bridge |
| CN103485290A (en) * | 2013-09-25 | 2014-01-01 | 江苏远兴环保集团有限公司 | External-hanging sound barrier for rail transit |
| CN103485290B (en) * | 2013-09-25 | 2016-01-27 | 江苏远兴环保集团有限公司 | Track traffic externally-hung sound barrier |
| CN104480849A (en) * | 2014-12-16 | 2015-04-01 | 中南大学 | Rail transit noise reduction box type bridge and external bonding noise reduction method of rail transit box type bridge |
| CN105421257A (en) * | 2015-12-24 | 2016-03-23 | 江苏国强镀锌实业有限公司 | Cement-based non-metal sound barrier unit plate |
| CN106758903A (en) * | 2016-12-29 | 2017-05-31 | 中铁第四勘察设计院集团有限公司 | The totally-enclosed sound barrier of assembly concrete |
| CN112810830A (en) * | 2020-12-31 | 2021-05-18 | 四川省场道工程有限公司 | Construction method of reinforced concrete folded plate type flow guide screen for airport |
| CN115012342A (en) * | 2021-03-04 | 2022-09-06 | 北京华路安交通科技有限公司 | Sound barrier stand and guardrail body structure and sound barrier guardrail system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080813 |