CN102561115A - Composite track noise-reducing shock-absorbing structure - Google Patents
Composite track noise-reducing shock-absorbing structure Download PDFInfo
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- CN102561115A CN102561115A CN2011103964058A CN201110396405A CN102561115A CN 102561115 A CN102561115 A CN 102561115A CN 2011103964058 A CN2011103964058 A CN 2011103964058A CN 201110396405 A CN201110396405 A CN 201110396405A CN 102561115 A CN102561115 A CN 102561115A
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- damping
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- shock
- cushion
- sleeper beam
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Abstract
The invention discloses a composite track noise-reducing shock-absorbing structure, which is characterized in that steel rails are fixed on a sleeper beam through fasteners on two sides of each steel rail, a cushion plate is disposed at the bottom of each fastener, damping noise-reducing belts are adhered to two lateral walls of a web of each steel rail, a cushion layer is disposed between each steel rail and the sleeper beam, and a floating cushion belt is disposed in a macadam foundation below the sleeper beam or between the macadam foundation and a subgrade. Structural damping of a track system is enhanced through a series of additional sub-structures, structural rigidity of the track system is changed, attenuation of shock of the track is quickened, shock frequency of the track system is changed, and effective shock absorption is achieved under sound source control.
Description
Technical field
The present invention 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.
Summary of the invention
The present invention 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 present invention adopts following technical scheme for the technical solution problem:
Combined type track noise abatement shock-damping structure of the present invention 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 combined type track noise abatement shock-damping structure of the present invention 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, beneficial effect of the present invention is embodied in:
1, the present invention promptly controls 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, structure of the present invention 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 cross section of the present invention;
Fig. 2 is a layout sketch map of the present invention;
Fig. 3 is a rail structure schematic cross-sectional view of the present invention;
Fig. 4 is a rail detail structure floor map of the present invention;
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 |
|---|---|---|---|
| CN2011103964058A CN102561115A (en) | 2011-12-02 | 2011-12-02 | Composite track noise-reducing shock-absorbing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103964058A CN102561115A (en) | 2011-12-02 | 2011-12-02 | Composite track noise-reducing shock-absorbing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102561115A true CN102561115A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103964058A Pending CN102561115A (en) | 2011-12-02 | 2011-12-02 | Composite track noise-reducing shock-absorbing structure |
Country Status (1)
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| CN (1) | CN102561115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714621A (en) * | 2016-01-27 | 2016-06-29 | 东南大学 | Ballastless track-structured waterproof vibration-reducing flexible protecting structure and paving method thereof |
| CN110906637A (en) * | 2018-09-18 | 2020-03-24 | 天津市君睿制冷设备有限公司 | L-shaped main sliding rail with good silence and sealing performance for refrigeration house door |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1434171A (en) * | 2002-01-22 | 2003-08-06 | 沈得县 | Rail with semi-risidity roadbed and construction method thereof |
| CN2600479Y (en) * | 2002-01-08 | 2004-01-21 | 沈阳普利司通有限公司 | Rubber and spreader on roadbed of railway |
| CN101413233A (en) * | 2008-11-11 | 2009-04-22 | 中国船舶重工股份有限公司洛阳分公司 | Method and device for designing shock and vibration absorption type steel rail suspending fastener |
-
2011
- 2011-12-02 CN CN2011103964058A patent/CN102561115A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2600479Y (en) * | 2002-01-08 | 2004-01-21 | 沈阳普利司通有限公司 | Rubber and spreader on roadbed of railway |
| CN1434171A (en) * | 2002-01-22 | 2003-08-06 | 沈得县 | Rail with semi-risidity roadbed and construction method thereof |
| CN101413233A (en) * | 2008-11-11 | 2009-04-22 | 中国船舶重工股份有限公司洛阳分公司 | Method and device for designing shock and vibration absorption type steel rail suspending fastener |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714621A (en) * | 2016-01-27 | 2016-06-29 | 东南大学 | Ballastless track-structured waterproof vibration-reducing flexible protecting structure and paving method thereof |
| CN110906637A (en) * | 2018-09-18 | 2020-03-24 | 天津市君睿制冷设备有限公司 | L-shaped main sliding rail with good silence and sealing performance for refrigeration house door |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120711 |