CN201794021U - Sound-absorbing and noise-reducing structure for bridge expansion joint device - Google Patents
Sound-absorbing and noise-reducing structure for bridge expansion joint device Download PDFInfo
- Publication number
- CN201794021U CN201794021U CN2010202818892U CN201020281889U CN201794021U CN 201794021 U CN201794021 U CN 201794021U CN 2010202818892 U CN2010202818892 U CN 2010202818892U CN 201020281889 U CN201020281889 U CN 201020281889U CN 201794021 U CN201794021 U CN 201794021U
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- sound
- noise
- absorbing
- absorbing filler
- pecten
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Abstract
The utility model relates to a sound-absorbing and noise-reducing structure for a bridge expansion joint device. The sound-absorbing and noise-reducing structure comprises a first comb plate (2) and a second comb plate (3) which are respectively arranged on beam bodies on two sides of a bridge expansion joint (11), wherein the second comb plate (3) spans the bridge expansion joint (11); a sound-absorbing filler (4) is arranged below the second comb plate (3) and in the bridge expansion joint (11); the top of the sound-absorbing filler (4) is attached to the bottom of the second comb plate (3); two sides of the sound-absorbing filler (4) respectively are in direct or indirect contact with the beam bodies (1) on two sides of the bridge expansion joint (11); and the sound-absorbing filler (4) is fixed relative to the beam bodies (1). Compared with the prior art, the sound-absorbing and noise-reducing structure has the advantages that when the comb plates have collided with the end parts of the beam bodies to generate the noise and the vibration, the sound-absorbing filler can absorb the noise, reduce the vibration, thereby effectively reducing the diffusion of the noise.
Description
Technical field
The utility model relates to the technical field of bridge expanssion joint, particularly a kind of structure of sound absorption and noise reduction that is used for bridge expansion joint installation that can effectively reduce noise.
Background technology
In existing bridge expansion joint installation, adopting fixedly, the comb type stretching device of pecten and the cooperation of movable pecten is a kind of preferably, especially use stroke in the large bridge shrinkage joint more than 160 millimeters, because its stretching motion is by placing the movable pecten on the bridge expanssion joint to finish, there is not vertical transition gap, and connect into an integral body with bridge floor, road surface, therefore shockproof properties is good, vehicle ' is steady, comfortable, avoided jumping car phenomenon effectively, make vehicle smooth-going, cosily cross.
In actual application, find, when the vehicle in travelling carries out the transition to another pecten from a pecten, must be through a plurality of broach of transpostion interval in two pectens, because always there are certain spacing in the end of each broach and the root of corresponding teeth groove, the fast ram compression of wheel will produce certain impact force when crossing this spacing.Especially in the winter time under the low-temperature condition, there are very large spacing in the end of each broach and the root of corresponding teeth groove, and the fast ram compression of wheel is out-of-date can to produce the bigger sound, and brings bigger vibration.Two pectens impacted and with the collision of beam end of body, consequent noise, around also can being relayed to apace by the beam body, the noise phenomenon is particularly serious, influence bridge following peripheral resident's environment, environmental protection inadequately.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of structure of sound absorption and noise reduction that is used for bridge expansion joint installation at the present situation of prior art, it can absorb pecten effectively and the beam end of body collides and the noise of generation, thereby reduce the diffusion of noise, reduce noise, environmental protection more.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this is used for the structure of sound absorption and noise reduction of bridge expansion joint installation, comprise first pecten and second pecten that are separately positioned on the bridge expanssion joint two curb girder bodies, wherein, second pecten is across on bridge expanssion joint, it is characterized in that: under described second pecten, be provided with the sound-absorbing filler in the bridge expanssion joint, paste mutually with the bottom of second pecten at the top of this sound-absorbing filler, the both sides of this sound-absorbing filler directly or indirectly contact with the beam body of bridge expanssion joint both sides respectively, and the relative beam body of this sound-absorbing filler is fixed.
Wherein, described sound-absorbing filler can adopt materials such as acoustical cotton, foam, and the sound-absorbing effectiveness in vibration suppression is better.
And the fixing of this sound-absorbing filler may adopt existing various technology, fixing for making things convenient for the sound-absorbing filler to be provided with, simply, can be provided with a waterstop in the described bridge expanssion joint, paste mutually respectively at the beam body side surface of bridge expanssion joint both sides these waterstop both sides, waterstop central recessed and form cavity volume, this sound-absorbing filler just is arranged in this cavity volume, so, the sound-absorbing filler is wrapped up by waterstop, thereby the beam body is fixed relatively by waterstop, and simultaneously, the sound-absorbing filler contacts with the beam body indirectly by this waterstop.
Structure of the present utility model can apply to fixedly pecten---movable pecten pattern or movable pecten---among the bridge expansion joint structure of movable pecten pattern or other pattern.
Compared with prior art, advantage of the present utility model is: by the sound-absorbing filler is set in bridge expanssion joint, and this sound-absorbing filler directly or indirectly contacts with second pecten bottom, two beam body side surfaces simultaneously, when producing noise and vibration when the collision of pecten and beam end of body, this sound-absorbing filler can absorb noise, and reduce vibration, effectively reduce the diffusion of noise.Structure of the present utility model, it is easy to mat formation, utilization easy to implement.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of sound-absorbing filler among the utility model embodiment.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, the structure of sound absorption and noise reduction that this is used for bridge expansion joint installation comprises first pecten 2 and second pecten 3 that are separately positioned on 11 liang of curb girder bodies 1 of bridge expanssion joint;
Wherein, second pecten 3 is across on bridge expanssion joint 11;
Be fixed with a waterstop 5 in the described bridge expanssion joint 11, paste mutually with two beam bodies, 1 side respectively these waterstop 5 both sides, and this waterstop 5 central recessed and form cavity volume, is provided with a sound-absorbing filler 4 in this cavity volume, and these sound-absorbing filler 4 relative beam bodies 1 are fixed;
This sound-absorbing filler 4 is located under second pecten, 3 bottoms, the width of length and whole second pecten 3 matches, paste mutually with the bottom of second pecten 3 at the top of this sound-absorbing filler 4, and the both sides of this sound-absorbing filler 4 are because of contacting with waterstop 5 indirectly and the 1 side mediate contact of two beam bodies.
Claims (2)
1. structure of sound absorption and noise reduction that is used for bridge expansion joint installation, comprise first pecten (2) and second pecten (3) that are separately positioned on bridge expanssion joint (11) the two curb girder bodies (1), wherein, second pecten (3) is across on bridge expanssion joint (11), it is characterized in that: under described second pecten (3), be provided with sound-absorbing filler (4) in the bridge expanssion joint (11), paste mutually with the bottom of second pecten (3) at the top of this sound-absorbing filler (4), the both sides of this sound-absorbing filler (4) directly or indirectly contact with the beam body (1) of bridge expanssion joint (11) both sides respectively, and the relative beam body (1) of this sound-absorbing filler (4) is fixing.
2. the structure of sound absorption and noise reduction that is used for bridge expansion joint installation according to claim 1, it is characterized in that: be provided with a waterstop (5) in the described bridge expanssion joint (11), paste mutually with beam body (1) side of bridge expanssion joint (11) both sides respectively this waterstop (5) both sides, waterstop (5) central recessed and form cavity volume, described sound-absorbing filler (4) just is arranged in this cavity volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202818892U CN201794021U (en) | 2010-08-02 | 2010-08-02 | Sound-absorbing and noise-reducing structure for bridge expansion joint device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202818892U CN201794021U (en) | 2010-08-02 | 2010-08-02 | Sound-absorbing and noise-reducing structure for bridge expansion joint device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794021U true CN201794021U (en) | 2011-04-13 |
Family
ID=43848940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202818892U Expired - Lifetime CN201794021U (en) | 2010-08-02 | 2010-08-02 | Sound-absorbing and noise-reducing structure for bridge expansion joint device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794021U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970810A (en) * | 2016-06-30 | 2016-09-28 | 西安中交万向科技股份有限公司 | Dustproof, noise-reducing and welding-free bridge expansion device and collision avoidance method |
| CN108301319A (en) * | 2018-01-11 | 2018-07-20 | 同济大学 | The novel butt type expansion installation of steel cylinder bearing |
| WO2021088396A1 (en) * | 2019-11-08 | 2021-05-14 | 南京毛勒工程材料有限公司 | Noise reduction system for telescopic device |
-
2010
- 2010-08-02 CN CN2010202818892U patent/CN201794021U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105970810A (en) * | 2016-06-30 | 2016-09-28 | 西安中交万向科技股份有限公司 | Dustproof, noise-reducing and welding-free bridge expansion device and collision avoidance method |
| CN108301319A (en) * | 2018-01-11 | 2018-07-20 | 同济大学 | The novel butt type expansion installation of steel cylinder bearing |
| CN108301319B (en) * | 2018-01-11 | 2019-10-18 | 同济大学 | The butt type expansion installation of steel cylinder bearing |
| WO2021088396A1 (en) * | 2019-11-08 | 2021-05-14 | 南京毛勒工程材料有限公司 | Noise reduction system for telescopic device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 315000 Ningbo high tech Industrial Group Co., Ltd., 96 Hibiscus Road, Ningbo High-tech Zone, Zhejiang Patentee after: Xu Bin Address before: 315800 Ningbo road Bao Technology Industrial Group Co., Ltd. 205 Mount Huangshan West Road, Beilun District, Ningbo, Zhejiang Patentee before: Xu Bin |
|
| CP02 | Change in the address of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |
|
| CX01 | Expiry of patent term |