CN201343708Y - Module type reinforced concrete sound barrier - Google Patents

Module type reinforced concrete sound barrier Download PDF

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Publication number
CN201343708Y
CN201343708Y CNU2009201049880U CN200920104988U CN201343708Y CN 201343708 Y CN201343708 Y CN 201343708Y CN U2009201049880 U CNU2009201049880 U CN U2009201049880U CN 200920104988 U CN200920104988 U CN 200920104988U CN 201343708 Y CN201343708 Y CN 201343708Y
Authority
CN
China
Prior art keywords
reinforced concrete
wall
panel
sound barrier
wall body
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.)
Expired - Fee Related
Application number
CNU2009201049880U
Other languages
Chinese (zh)
Inventor
王科学
毕节先
李瑞国
张�林
谢红军
官义军
赵允刚
李峰
邱果
王孟
郭成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Ferroelectric Communicate Industrial & Trade Co Ltd
China Railway Electrification Engineering Group Co Ltd
Original Assignee
Beijing Ferroelectric Communicate Industrial & Trade Co Ltd
China Railway Electrification Engineering Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beijing Ferroelectric Communicate Industrial & Trade Co Ltd, China Railway Electrification Engineering Group Co Ltd filed Critical Beijing Ferroelectric Communicate Industrial & Trade Co Ltd
Priority to CNU2009201049880U priority Critical patent/CN201343708Y/en
Application granted granted Critical
Publication of CN201343708Y publication Critical patent/CN201343708Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a module type reinforced concrete sound barrier; the sound barrier is provided with a hollow wall body made of reinforced concrete material; an expanded-pearlite acoustical tile is arranged in a cavity of the wall body; a panel is arranged on one side of the surface; and through holes which are closely distributed are formed on the panel. Bulges and grooves mutually matched are formed at the top part and at the bottom part of the wall body; and a plurality of foldable hoisting bolts are also arranged at the top part of the wall body. The utility model has the advantages of simple and convenient installation, good noise reduction effect, short construction period, long service life and the like.

Description

A kind of modular reinforced concrete acoustical barrier
Technical field:
The utility model relates to noise pollution Prevention Technique field, especially relates to being installed on the sound barrier that speedway, railway, overhead composite road, light rail, subway, factory etc. locate to be used for noise reduction.
Background technology:
The method and the measure of transport solution noise both at home and abroad has many types, but both economical and effective measures are to build (installation) sound barrier in main line of communication both sides.At present, adopting more is acoustical board+concrete backboard type sound barrier, promptly with acoustical board as absorbent treatment, the concrete backboard is as soundproof course and load wall.The concrete backboard adopts cast-in-place, and acoustical board adopts on-the-spot secondary installing to fix.Acoustical board+concrete backboard type sound barrier site operation engineering quantity is bigger, and the construction period is longer.Acoustical board is used more at present, and both economical again mainly contains: wood cement concrete acoustical board, sound-absorbing expanded perlite board.
The sound-absorbing expanded perlite board main material is an expanded perlite, adds inorganic adhesive and hydrophobic material and dries by the fire foster forming through the press pressing.Product belongs to the non-metal kind product, acidproof resistance to oxidation, and chemical stability is good, has protection against the tide, water-proof function simultaneously, and plate face acoustically effective is better, and palette face intensity is lower, directly influences its application life, and exposed use does not add the frequent replacing of protection needs.
Wood cement concrete acoustical board main material is a wood chip, adds cement and additive mixs such as cement blowing agent, hydrophober, puts into mould pressurization, foaming, normal temperature cure moulding.Plate face intensity is better than sound-absorbing expanded perlite board, but acoustically effective is undesirable, and average noise reduction coefficient (NRC) has only about 0.65.
The utility model content:
The purpose of this utility model is the weak point that exists at prior art and a kind of modular reinforced concrete acoustical barrier is provided, and it has simple and convenient, short construction period, the characteristics that acoustically effective is good of installing.
For achieving the above object, sound barrier of the present utility model has a hollow wall of being made by Reinforced Concrete Materials, is provided with sound-absorbing expanded perlite board in the cavity of body of wall, and its surperficial side is provided with panel, offers densely covered through hole on the panel.
Described body of wall top and bottom form the projection and the groove that can cooperatively interact respectively.
Described body of wall top also is provided with a plurality of folding lifting bolts.
Described through hole is vertical bellmouth, and the horn mouth of bellmouth is towards the body of wall outer end.
The percent opening of described panel through hole is 38%.
The beneficial effects of the utility model are: (1) excellent noise reduction effect, its mean transmission loss are 42dB, and noise reduction coefficient average (NRC) is 0.81; (2) fireproof performance all meets the regulation of GB8624, and fire-protection rating reaches the A1 level; (3) compressive strength, flexural strength, breaking load etc. all meet the pertinent regulations of JC430 standard, and its plate compressive strength for surface contact is better than wood cement concrete acoustical board, sound-absorbing expanded perlite board; (4) have corrosion-resistant, humidity, anti-ly go mouldy, the ability of anti-thawing, under all weather conditions, do not go mouldy, aging, indeformable; (5) can adopt prefabricate mode to produce, the scene once is seated, and can increase work efficiency greatly, shortens the engineering time, reduces the site operation expense.(6) do not need manual maintenance, maintenance behind the installation back, can reach more than 40 years application life.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is a sectional view of the present utility model.
The specific embodiment:
The following stated only is preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
See illustrated in figures 1 and 2: the utlity model has a body of wall 10 that forms by Reinforced Concrete Materials cast, body of wall 10 is that hollow form is to improve noise reduction, for taking into account the acoustically effective of high band, be provided with hydrophobicity performance in the cavity 101 of body of wall 10 up to 99% sound-absorbing expanded perlite board 20, body of wall 10 surperficial sides are provided with panel 30, offer densely covered through hole 31 on the panel 30, and through hole 31 is vertical bellmouth, the horn mouth of bellmouth is towards body of wall 10 outer ends, and the percent opening of through hole 31 is 38%.
Appearance and size of the present utility model can be made different specifications according to scene or user's needs, installs for convenient, and body of wall 10 tops and bottom form the projection 11 and the groove 12 that can cooperatively interact respectively.In addition, body of wall 10 tops also are provided with a plurality of folding lifting bolts 40.By said structure, the polylith concrete acoustical barrier can be fitted together, that the lines flow smoothly is smooth for the sound barrier after the assembling.
Under the prerequisite that guarantees sound barrier acoustical behavior and intensity, rigidity and stability, for ease of installing and transportation, the surface density of product is not more than 100kg/m 2, the monolithic maximum weight is not more than 200Kg.

Claims (5)

1. modular reinforced concrete acoustical barrier, it is characterized in that: it has a hollow wall (10) of being made by material on the reinforced concrete, be provided with sound-absorbing expanded perlite board (20) in the cavity (101) of body of wall (10), its surperficial side is provided with panel (30), offers densely covered through hole (31) on the panel (30).
2. modular reinforced concrete acoustical barrier according to claim 1 is characterized in that: described body of wall (10) top and bottom form the projection (11) and the groove (12) that can cooperatively interact respectively.
3. modular reinforced concrete acoustical barrier according to claim 2 is characterized in that: described body of wall (10) top also is provided with a plurality of folding lifting bolts (40).
4. according to each described modular reinforced concrete acoustical barrier in the claim 1 to 3, it is characterized in that: described through hole (31) is vertical bellmouth, and the horn mouth of bellmouth is towards body of wall (10) outer end.
5. modular reinforced concrete acoustical barrier according to claim 4 is characterized in that: the percent opening that described panel (30) is gone up through hole (31) is 38%.
CNU2009201049880U 2009-01-14 2009-01-14 Module type reinforced concrete sound barrier Expired - Fee Related CN201343708Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009201049880U CN201343708Y (en) 2009-01-14 2009-01-14 Module type reinforced concrete sound barrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009201049880U CN201343708Y (en) 2009-01-14 2009-01-14 Module type reinforced concrete sound barrier

Publications (1)

Publication Number Publication Date
CN201343708Y true CN201343708Y (en) 2009-11-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2009201049880U Expired - Fee Related CN201343708Y (en) 2009-01-14 2009-01-14 Module type reinforced concrete sound barrier

Country Status (1)

Country Link
CN (1) CN201343708Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103382705A (en) * 2013-07-24 2013-11-06 江苏南瓷绝缘子有限公司 High-strength sound barrier
CN103603277A (en) * 2013-10-28 2014-02-26 合肥中铁百瑞得交通工程科技有限公司 Compound type sound barrier for high-speed railway
CN106087788A (en) * 2016-08-03 2016-11-09 中铁电气化局集团有限公司 A kind of nonmetal sound-absorbing composite board and production method thereof
CN106884386A (en) * 2017-04-14 2017-06-23 苏交科集团股份有限公司 A kind of road noise barrier device and its construction method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103382705A (en) * 2013-07-24 2013-11-06 江苏南瓷绝缘子有限公司 High-strength sound barrier
CN103603277A (en) * 2013-10-28 2014-02-26 合肥中铁百瑞得交通工程科技有限公司 Compound type sound barrier for high-speed railway
CN106087788A (en) * 2016-08-03 2016-11-09 中铁电气化局集团有限公司 A kind of nonmetal sound-absorbing composite board and production method thereof
CN106884386A (en) * 2017-04-14 2017-06-23 苏交科集团股份有限公司 A kind of road noise barrier device and its construction method

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C14 Grant of patent or utility model
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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091111

Termination date: 20130114

CF01 Termination of patent right due to non-payment of annual fee