CN202347373U - Noise and vibration reducing structure for combined type track - Google Patents
Noise and vibration reducing structure for combined type track Download PDFInfo
- Publication number
- CN202347373U CN202347373U CN2011204968371U CN201120496837U CN202347373U CN 202347373 U CN202347373 U CN 202347373U CN 2011204968371 U CN2011204968371 U CN 2011204968371U CN 201120496837 U CN201120496837 U CN 201120496837U CN 202347373 U CN202347373 U CN 202347373U
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- China
- Prior art keywords
- noise
- damping
- track
- combined type
- sleeper beam
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Abstract
The utility model discloses a noise and vibration reducing structure for a combined type track. A steel track is fixed to a sleeper beam by two side fasteners, and the bottoms of the fasteners are provided with a baffle sub-plate. The noise and vibration reducing structure is characterized in that the two side walls of a web plate of the steel track are pasted with damping noise reducing stripes, the baffle sub-plate is arranged between the steel track and the sleeper beam, and a floating type baffling strip is arranged in a macadam foundation under the sleeper beam or between the macadam foundation and a roadbed. By the virtue of a series of additional substructures, the noise and vibration reducing structure disclosed by the utility model enhances the damping of the structure of a track system and changes the structural rigidity of the track system, thereby accelerating the attenuation of the track vibration and changing the vibration frequency of the track system. The noise and vibration reducing structure achieves the aim of reducing noise by controlling sound sources, thus the noise reducing effect is better.
Description
Technical field
The utility model relates to a kind of noise abatement shock-damping structure, particularly a kind of noise abatement shock-damping structure that is used for track traffic.
Background technology
Rail is often referred to the steel track that is used for long distance train and the enforcement of urban track traffic instrument.The track traffic noise mainly contains two aspects: the noise that wheel and rail bump produces when train locomotive noise and train driving, the latter influences greatly the resident more than the former.Rail transit noise is given railway resident along the line physically and mentally healthy deleterious impact, lives in for a long time among the noise, and the sense of hearing of human body and psychological damage will be significant.
The essence that noise produces is that the stress wave of structural vibration is propagated in air, if effective control structure vibration characteristics, noise also just is effectively controlled.The noise that the containment track traffic brings mainly contains two big class methods, and first kind method is the blocking-up noise path, like noise barrier, greenbelt etc.; Second class methods are to weaken noise from the noise source, control vibrational structure etc. like design.
At present, the mode of track traffic noise abatement mainly is to set up barrier to carry out sound insulation and utilize how empty material to inhale to make an uproar, belong to passive noise abatement, and this noise abatement mode cost is high, but noise reduction effect is unsatisfactory.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of combined type track noise abatement shock-damping structure being provided, in the hope of improving damping effect, reducing construction costs.
The utility model adopts following technical scheme for the technical solution problem:
The utility model combined type track noise abatement shock-damping structure is with the both sides fastener rail to be fixedly installed on the sleeper beam; Bottom at said fastener is provided with buffer plate; Its design feature is a bonding damping noise abatement band on the web two side of said rail, between said rail and sleeper beam, cushion is set, below said sleeper beam in the rubble basis; Or between rubble basis and roadbed, be provided with the floating buffer strip.
The characteristics of the utility model combined type track noise abatement shock-damping structure also are:
The groove of reservation is set on the relevant position of said sleeper beam, and said cushion places the groove of said reservation; The buffer plate that is fitted in the bottom of rail fastening is crimped on the dual-side of said cushion, forms the integrated buffer layer that is made up of buffer plate and cushion.
Said floating buffer strip is set to opening channel steel shape structure up.
Said floating buffer strip is to be material with the elastopolymer.
Said floating buffer strip is a bituminous concrete.
Compared with present technology, the beneficial effect of the utility model is embodied in:
1, the utility model is promptly controlled rail system structural vibration through changing the noise root, weakens the noise decibel.Through a series of additional substructure, increase the damping of rail system structure, change the rail system rigidity of structure, thereby accelerate the decay of track vibration, change the vibration frequency of rail system.Reach the noise abatement purpose through sound source control, noise reduction effect is better.
2, the utility model structure is simple relatively, compares existing noise abatement measure, like noise barrier etc., greatly reduces construction costs, also can unite use with sound insulation, sound absorption construction simultaneously, replenishes each other.
Description of drawings
Fig. 1 is that sketch map is arranged in the cross section of the utility model;
Fig. 2 is the layout sketch map of the utility model;
Fig. 3 is the rail structure schematic cross-sectional view of the utility model;
Fig. 4 is the rail detail structure floor map of the utility model;
Label among the figure: 1 rail; 2 sleeper beams; 3 fasteners; 4 crushed rock base courses; 5 roadbeds; 6 damping noise abatement bands; 7 cushions; 8 floating buffer strips; 9 buffer plates.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the combined type track noise abatement shock-damping structure in the present embodiment is with both sides fastener 3 rail 1 to be fixedly installed on the sleeper beam 2, is provided with buffer plate 9 in the bottom of fastener 3; Bonding damping noise abatement band 6 is provided with cushion 7 between rail 1 and sleeper beam 2 on the web two side of rail 1, is arranged in rubble basis, sleeper beam below 4, or the floating buffer strip 8 between rubble basis 4 and roadbed 5.
In the practical implementation; The corresponding structure setting also comprises: floating buffer strip 8 is set to opening channel steel shape structure up; Below with the side all be provided with the damping that the floating buffer strip can increase basic unit to greatest extent; Strengthen building damping effect, floating buffer strip 8 is a material with the elastopolymer, adopts bituminous concretes such as floating buffer strip 8.
Damping noise abatement band 6 can be through heat treatment once machine-shaping on rail two coxostermums, also can be in the rail web, built-in fitting to be set, and through the fixing damping noise abatement band of built-in fitting, damping noise abatement band 6 is used to increase the rail damping, acceleration orbit vibration attenuation.Damping noise abatement band 6 is to be material with the damping material, such as, select for use have high resiliency, rubber of high damping characteristic, plastics damping sheet etc.
Work progress: carry out the construction of roadbed 5 at first on the ground, after roadbed 5 constructions are accomplished, carry out the construction of crushed rock base course 4 and floating buffer strip 8, floating buffer strip 8 is arranged in the rubble basis, can be close to roadbed 5, also can be to be in the rubble basis 4; In crushed rock base course 4 and sleeper beam 2 constructions finishing back cushion 7 is installed.
Structure setting in the present embodiment greatly reduces the rail system rigidity of structure, reduces the Rail Transit System vibration amplitude.
Claims (5)
1. combined type track noise abatement shock-damping structure; Be rail (1) to be fixedly installed on the sleeper beam (2), be provided with buffer plate (9), it is characterized in that bonding damping noise abatement band (6) on the web two side of said rail (1) in the bottom of said fastener (3) with both sides fastener (3); Between said rail (1) and sleeper beam (2), cushion (7) is set; In said sleeper beam (2) rubble basis, below (4), or be positioned between rubble basis (4) and the roadbed (5), be provided with floating buffer strip (8).
2. combined type track noise abatement shock-damping structure according to claim 1 is characterized in that: the groove of reservation is set on the relevant position of said sleeper beam (2), and said cushion (7) places the groove of said reservation; The buffer plate (9) that is fitted in the bottom of rail fastening (3) is crimped on the dual-side of said cushion (7), forms the integrated buffer layer that is made up of buffer plate (9) and cushion (7).
3. combined type track noise abatement shock-damping structure according to claim 1 is characterized in that said floating buffer strip (8) is set to opening channel steel shape structure up.
4. according to claim 1 or 3 described combined type track noise abatement shock-damping structures, it is characterized in that said floating buffer strip (8) is is material with the elastopolymer.
5. combined type track noise abatement shock-damping structure according to claim 4 is characterized in that said floating buffer strip (8) is a bituminous concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204968371U CN202347373U (en) | 2011-12-02 | 2011-12-02 | Noise and vibration reducing structure for combined type track |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204968371U CN202347373U (en) | 2011-12-02 | 2011-12-02 | Noise and vibration reducing structure for combined type track |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202347373U true CN202347373U (en) | 2012-07-25 |
Family
ID=46536387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204968371U Expired - Fee Related CN202347373U (en) | 2011-12-02 | 2011-12-02 | Noise and vibration reducing structure for combined type track |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202347373U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711045A (en) * | 2013-12-19 | 2014-04-09 | 四川大学 | Device for reducing rail vibration damage |
| CN111501423A (en) * | 2020-04-27 | 2020-08-07 | 中铁二院工程集团有限责任公司 | 400km/h and above high-speed rail strong expansive rock deep cutting integral supporting and retaining structure and construction method |
-
2011
- 2011-12-02 CN CN2011204968371U patent/CN202347373U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103711045A (en) * | 2013-12-19 | 2014-04-09 | 四川大学 | Device for reducing rail vibration damage |
| CN103711045B (en) * | 2013-12-19 | 2015-07-15 | 四川大学 | Device for reducing rail vibration damage |
| CN111501423A (en) * | 2020-04-27 | 2020-08-07 | 中铁二院工程集团有限责任公司 | 400km/h and above high-speed rail strong expansive rock deep cutting integral supporting and retaining structure and construction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |