CN103526652B - The ladder-type sleepers track structure of passive type power vibration damping - Google Patents
The ladder-type sleepers track structure of passive type power vibration damping Download PDFInfo
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- CN103526652B CN103526652B CN201310528573.7A CN201310528573A CN103526652B CN 103526652 B CN103526652 B CN 103526652B CN 201310528573 A CN201310528573 A CN 201310528573A CN 103526652 B CN103526652 B CN 103526652B
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Abstract
The ladder-type sleepers track structure of passive type power vibration damping, to reduce the vibration composition approaching with track structure intrinsic frequency, eliminates the nuisance vibration of track structure in this frequency range. comprise a pair of laterally spaced longitudinal ladder-type sleepers (101) being arranged on brace foundation (106), this to ladder-type sleepers (101) by connecting as one along the spaced connecting elements of circuit bearing of trend (102), rail (104) is fixed on ladder-type sleepers (101) by fastener (105), it is characterized in that: described ladder-type sleepers (101) is gone up or brace foundation (106) ascender line road bearing of trend is arranged at intervals with additional mass (103), additional mass (103) is connected with ladder-type sleepers (101) or brace foundation (106) elasticity by elastic component.
Description
Technical field
The present invention relates to railroad construction member, particularly a kind of ladder-type sleepers of passive type power vibration dampingTrack structure.
Background technology
Ladder-type sleepers track is made up of rail, fastener, ladder-type sleepers and brace foundation etc., wherein trapezoidalSleeper by a pair of longitudinal reinforcement beams of concrete and the horizontal steel pipe that longitudinally certain intervals is arranged connect andBecome, likeness in form " ladder ", therefore obtain this name. Because its ladder-type sleepers beam is along the longitudinal continuous laying of rail, because ofThis, not only the longitudinal bending rigidity of rail frame increases, improved running stability, and railway ballast bearsTrain load distribution is improved, thereby has reduced the rail causing because of train load repeated actionRoad distortion, has obtained extensive application in urban track traffic at home and abroad.
The ladder-type sleepers that adopts cushion blocking below sleeper is a kind of light-weighted quality-spring system, canReduce to a great extent the vibration that train load is passed to surrounding environment, the effectiveness in vibration suppression (Z of systemA grade insertion loss shakes) can reach 12～15dB. At present, floating type ladder-type sleepers track structure the first rank are solidThere is frequency about 20Hz left and right, need the low frequency (f≤20Hz) of isolating to actual life and in producingVibration composition, ladder-type sleepers track structure does not only have the effect of reduction, shakes on the contrary because of this frequency rangeMoving its intrinsic frequency that approaches, produces resonance, can strengthen the vibration effect of this frequency range. Improve track knotThe buffering effect of structure to low-frequency vibration composition, traditional way is to reduce the intrinsic frequency of track structure,Increase the quality of track structure, or reduce the rigidity of track structure. Owing to being subject to railway foundation construction circleLimit and cost are limit, and the effectiveness in vibration suppression that mass penalty brings is limited; If attenuating Track Structure Stiffness,Intrinsic frequency can reduce, but stiffness degradation is excessive, and track structure displacement increases, and brings train operationPotential safety hazard, therefore, cannot further be reached and be reduced shaking in low-frequency range by above-mentioned formMoving impact.
In the time of building that subway train is had relatively high expectations through vibration damping, as scientific research institution, music hall, doctorInstitute, military installations, museum and ancient building etc., low-frequency vibration composition not only easily causes the tired of structureStrain wound, affects equipment life, also can affect environment for use and the edge of the property such as railway upper cover museumThe operating accuracy of line precision instrumentation, easily causes the work of electric component and robot control system(RCS) malfunctioning, withShi Zhendong also inevitably produces noise, and impact is personnel's work and physical and mental health around. Therefore,Be necessary that the low frequency vibration damping performance of employing new technology to ladder-type sleepers track structure does further research.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of ladder-type sleepers of passive type power vibration dampingTrack structure, to reduce the vibration composition approaching with track structure intrinsic frequency, eliminates track structure and existsThe nuisance vibration of this frequency range.
It is as follows that the present invention solves this technical problem taked technical scheme:
The ladder-type sleepers track structure of passive type power vibration damping of the present invention, comprises and is arranged at brace foundationOn a pair of laterally spaced longitudinal ladder-type sleepers, this to ladder-type sleepers by along between circuit bearing of trendConnect as one every the connecting elements arranging, rail is fixed on ladder-type sleepers by fastener, its featureBe: on described ladder-type sleepers or brace foundation ascender line road bearing of trend is arranged at intervals with additional massPiece, additional mass is connected with ladder-type sleepers or brace foundation elasticity by elastic component; Described elasticityMember, additional mass, ladder-type sleepers form spring-damping-quality minor structure, suitably selectThe version of this minor structure, kinetic parameter and and track structure between coupled relation, in expection frequentlyIn section, make the vibration phase of minor structure contrary with the vibrational state of ladder-type sleepers or brace foundation, by attachedThe large displacement vibration that adds mass reduces the low-frequency vibration composition of track structure.
The invention has the beneficial effects as follows, on ladder-type sleepers and/or on brace foundation, arrange and its bulletProperty the additional mass that connects, version by choose reasonable additional mass, kinetic parameter withAnd and track structure between coupled relation, just can in track structural natural frequencies section, realize massVibration phase contrary with the vibration phase of ladder-type sleepers or ladder-type sleepers brace foundation, reach elimination railRoad structure is at the nuisance vibration of this frequency range, the order that realization reduces the low-frequency vibration composition of ladder-type sleepers track.
Brief description of the drawings
Fig. 1 is ladder-type sleepers track structure embodiment 1 schematic diagram of passive type power vibration damping of the present invention;
Fig. 2 is ladder-type sleepers track structure embodiment 2 schematic diagrames of passive type power vibration damping of the present invention;
Fig. 3 is ladder-type sleepers track structure embodiment 3 schematic diagrames of passive type power vibration damping of the present invention;
Fig. 4 is ladder-type sleepers track structure embodiment 4 schematic diagrames of passive type power vibration damping of the present invention;
Fig. 5 is the knot of additional mass in the ladder-type sleepers track structure of passive type power vibration damping of the present inventionStructure schematic diagram;
Fig. 6 is another of ladder-type sleepers track structure additional mass of passive type power vibration damping of the present inventionPlant structural representation;
Fig. 7 is that the entirety of the ladder-type sleepers track structure embodiment 4 of passive type power vibration damping of the present invention is shownIntention;
Fig. 8 is ladder-type sleepers track structure embodiment 5 schematic diagrames of invention passive type power vibration damping
Member shown in figure and corresponding mark: ladder-type sleepers 101, installing space 101a, connectsMember 102, additional mass 103, rail 104, fastener 105, brace foundation 106.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail.
With reference to Fig. 1 or Fig. 8, the ladder-type sleepers track structure of passive type power vibration damping of the present invention, bagDraw together a pair of laterally spaced longitudinal ladder-type sleepers 101 being arranged on brace foundation 106, this is to ladderShape sleeper 101 is by connecting as one along the spaced connecting elements 102 of circuit bearing of trend, rail104 are fixed on ladder-type sleepers 101 by fastener 105. On described ladder-type sleepers 101 or support groupPlinth 106 ascender line road bearing of trends are arranged at intervals with additional mass 103, and additional mass 103 is logicalCrossing elastic component is connected with ladder-type sleepers 101 or brace foundation 106 elasticity.
The present invention is not by reducing track structure intrinsic frequency, be not by increase sleeper quality orPerson's sleeper support stiffness, realizes the object of low frequency vibration damping, but adopts the former of passive type dynamic absorberReason, by additional spring-damping-quality minor structure on sleeper, suitably selects this minor structureVersion, kinetic parameter and and track structure between coupled relation, in expection frequency range, make son knotThe vibration phase of structure is contrary with the vibrational state of sleeper or sleeper brace foundation, by additional massLarge displacement vibration, realization reduces the object of the low-frequency vibration composition of track structure.
The present invention by arranging and its resilient connection on ladder-type sleepers 101 or on brace foundation 106Additional mass 103, version by choose reasonable additional mass, kinetic parameter andAnd the coupled relation between track structure just can be realized mass in track structural natural frequencies sectionVibration phase is contrary with the vibration phase of sleeper or sleeper brace foundation, reaches and eliminates track structure at thisThe nuisance vibration of frequency range, the object that realization reduces the low-frequency vibration composition of ladder-type sleepers track.
Described additional mass 103 is reinforced concrete block or the larger block of metallic material of density, to reachTo better absorbing effect. With reference to Fig. 5, described additional mass 103 is overall structure. With reference to Fig. 6,Described additional mass 103 also can be combined by multiple cell blocks. Described elastic component be rubber,Spring, synthetic resin or reinforcing bar. Ladder-type sleepers 101 is made up of armored concrete conventionally.
The set-up mode of described additional mass 103 can have various ways. Referring to figs. 1 through Fig. 4,Described connecting elements 102 arranges along rail 104 bearing of trend intervals, adjacent two connecting elements 102Form installing space 101a, conventionally in this installing space 101a, at least one additional mass is set103。
Embodiment 1: as shown in Figure 1, described additional mass 103 in installing space 101a withThe madial wall elasticity of one longitudinal ladder-type sleepers 101 connects.
Embodiment 2: as shown in Figure 2, described additional mass 103 in installing space 101a,Its both sides are connected with the madial wall elasticity of a longitudinal ladder-type sleepers 101 respectively.
Embodiment 3: as shown in Figure 3, described additional mass 103 is taking two as one group, same groupIn two additional masses 103 respectively with madial wall, the lateral wall elasticity of a longitudinal ladder-type sleepers 101Connect.
Embodiment 4: as shown in Fig. 4, Fig. 7, respectively arrange one on described two longitudinal ladder-type sleepers 101Group additional mass 103, two additional masses 103 in same group respectively with a longitudinal ladder-type sleepers101 madial wall, lateral wall elasticity connect.
Embodiment 5: as shown in Figure 8, described additional mass 103 is at installing space 101aIn be connected with brace foundation 106 elasticity. Additional mass 103 both can embed in brace foundation 106,Or be attached to the surface of brace foundation 106.
The ladder-type sleepers track knot of the above passive type power vibration damping of the present invention that just explains through diagramsSome principles of structure, be not the present invention to be confined to shown in and described concrete structure and applicable modelIn enclosing, the corresponding modify being likely utilized therefore every and equivalent, all belong to institute of the present invention ShenThe scope of the claims please.
Claims (8)
1. the ladder-type sleepers track structure of passive type power vibration damping, comprises and is arranged at brace foundation (106)On a pair of laterally spaced longitudinal ladder-type sleepers (101), this to ladder-type sleepers (101) by edgeThe spaced connecting elements of circuit bearing of trend (102) connects as one, and rail (104) passes throughIt is upper that fastener (105) is fixed on ladder-type sleepers (101), it is characterized in that: described ladder-type sleepers (101)Upper or brace foundation (106) ascender line road bearing of trend is arranged at intervals with additional mass (103),Additional mass (103) is by elastic component and ladder-type sleepers (101) or brace foundation (106)Elasticity connects; Described elastic component, additional mass (103), ladder-type sleepers (101) form oneIndividual spring-damping-quality minor structure, suitably select this minor structure version, kinetic parameter andAnd the coupled relation between track structure, makes vibration phase and the trapezoidal rail of minor structure in frequency range in expectionThe vibrational state of pillow (101) or brace foundation (106) is contrary, by additional mass (103)Large displacement vibration reduce the low-frequency vibration composition of track structure.
2. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, its spyLevy and be: the madial wall elasticity of described additional mass (103) and a longitudinal ladder-type sleepers (101)Connect.
3. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, its spyLevy and be: the both sides of described additional mass (103) are respectively with a longitudinal ladder-type sleepers (101)Madial wall elasticity connects.
4. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, its spyLevy and be: described additional mass (103) is taking two as one group, two additional mass in same groupPiece (103) is connected with madial wall, the lateral wall elasticity of a longitudinal ladder-type sleepers (101) respectively.
5. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 4, its spyLevy and be: the upper each one group of additional mass (103) that arranges of described two longitudinal ladder-type sleepers (101).
6. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, its spyLevy and be: described additional mass (103) is for overall structure, or combined by multiple cell blocks andBecome.
7. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, its spyLevy and be: described additional mass (103) is reinforced concrete block or the larger metal material of densityPiece.
8. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, its spyLevy and be: described elastic component is rubber, spring, synthetic resin or reinforcing bar.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310528573.7A CN103526652B (en) | 2013-10-30 | 2013-10-30 | The ladder-type sleepers track structure of passive type power vibration damping |
| RU2016102953A RU2624147C1 (en) | 2013-07-30 | 2014-07-21 | Plate for rail track, passively absorbing dynamic vibrations |
| PCT/CN2014/000686 WO2015014096A1 (en) | 2013-07-30 | 2014-07-21 | Passive dynamic vibration absorption track plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310528573.7A CN103526652B (en) | 2013-10-30 | 2013-10-30 | The ladder-type sleepers track structure of passive type power vibration damping |
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| CN103526652A CN103526652A (en) | 2014-01-22 |
| CN103526652B true CN103526652B (en) | 2016-05-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015014096A1 (en) * | 2013-07-30 | 2015-02-05 | 中铁二院工程集团有限责任公司 | Passive dynamic vibration absorption track plate |
| CN104594137A (en) * | 2014-12-01 | 2015-05-06 | 同济大学 | Urban rail transit shock absorption type floating slab rail system |
| CN104594139B (en) * | 2015-01-20 | 2016-03-09 | 北京宝曼科技有限公司 | Vibration damping system with excellent vibration damping effect under water condition |
| CN108984480A (en) * | 2018-06-13 | 2018-12-11 | 东南大学 | A kind of step removing method that multiple acceleration transducer additional mass influence |
| CN113111448A (en) * | 2021-03-09 | 2021-07-13 | 广州地铁设计研究院股份有限公司 | Design method of vibration-damping energy-collecting sleeper |
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