CN103526652A - Passive type power vibration reduction trapezoidal sleeper track structure - Google Patents
Passive type power vibration reduction trapezoidal sleeper track structure Download PDFInfo
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- CN103526652A CN103526652A CN201310528573.7A CN201310528573A CN103526652A CN 103526652 A CN103526652 A CN 103526652A CN 201310528573 A CN201310528573 A CN 201310528573A CN 103526652 A CN103526652 A CN 103526652A
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Abstract
Provided is a passive type power vibration reduction trapezoidal sleeper track structure. Vibration components close to inherent frequency of the track structure are reduced, and harmful vibration of the track structure at a frequency band is eliminated. The passive type power vibration reduction trapezoidal sleeper track structure comprises a pair of longitudinal trapezoidal sleepers (101) which are at intervals horizontally and are arranged on a supporting base (106), the pair of trapezoidal sleepers (101) is connected to be a whole through connecting elements (102) arranged in the line extension direction at intervals, and steel rails (104) are fixed on the trapezoidal sleepers (101) through fasteners (105). The passive type power vibration reduction trapezoidal sleeper track structure is characterized in that additional mass blocks (103) are arranged on the trapezoidal sleepers (101) or the supporting base (106) in the line extension direction at intervals and elastically connected with the trapezoidal sleepers (101) or the supporting base (106) through elastic components.
Description
Technical field
The present invention relates to railway construction member, particularly a kind of ladder-type sleepers track structure of passive type power vibration damping.
Background technology
Ladder-type sleepers track consists of rail, fastener, ladder-type sleepers and brace foundation etc., and wherein ladder-type sleepers is formed by a pair of longitudinal reinforcement concrete beam and the longitudinally horizontal steel pipe connection of certain intervals layout, and likeness in form " ladder ", therefore obtain this name.Because its ladder-type sleepers beam is along the longitudinal continuous laying of rail, therefore, not only longitudinal bending rigidity of rail frame increases, improved running stability, and the train load distribution that railway ballast bears is improved, thereby reduced the track deformation causing because of train load repeated action, in urban track traffic, obtained extensive application at home and abroad.
The ladder-type sleepers that adopts cushion blocking below sleeper is a kind of light-weighted quality-spring system, can reduce to a great extent the vibration that train load is passed to surrounding environment, and the effectiveness in vibration suppression of system (Z shake a grade insertion loss) can reach 12～15dB.At present, floating type ladder-type sleepers track structure first natural frequency is about 20Hz left and right, to actual life and in producing, need the low frequency (f≤20Hz) of isolation to vibrate composition, ladder-type sleepers track structure does not only have the effect of reduction, on the contrary because this frequency range vibration approaches its intrinsic frequency, produce resonance, can strengthen the vibration effect of this frequency range.Improve the buffering effect of track structure to low frequency vibration composition, traditional way is to reduce the intrinsic frequency of track structure, increases the quality of track structure, or reduces the rigidity of track structure.Owing to limit by railway foundation construction boundary and cost, 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 operating safety hidden danger, therefore, cannot further by above-mentioned form, reach the vibration effect reducing in low-frequency range.
When building that subway train is had relatively high expectations through vibration damping, as scientific research institution, concert hall, hospital, military installations, museum and ancient building etc., low frequency vibration composition not only easily causes the fatigue damage of structure, affect equipment life, also can affect the environment for use of the property such as railway upper cover museum and the operating accuracy of precision instrumentation along the line, easily cause the work of electric component and robot control system(RCS) malfunctioning, vibration simultaneously 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 track structure of passive type power vibration damping, to reduce the vibration composition approaching with track structure intrinsic frequency, eliminates track structure at the 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, comprise a pair of laterally spaced longitudinal ladder-type sleepers being arranged on brace foundation, this to ladder-type sleepers by connecting as one along the spaced connecting elements of circuit bearing of trend, rail is fixed on ladder-type sleepers by fastener, it is characterized in that: on described ladder-type sleepers or brace foundation ascender line road bearing of trend is arranged at intervals with additional mass, and additional mass is connected with ladder-type sleepers or brace foundation elasticity by elastic component.
The invention has the beneficial effects as follows, additional mass with its resilient connection is set on ladder-type sleepers and/or on brace foundation, form of structure by choose reasonable additional mass, kinetic parameter and and track structure between coupled relation, just the vibration phase that can realize mass in track structural natural frequencies section is contrary with the vibration phase of ladder-type sleepers or ladder-type sleepers brace foundation, reaches and eliminates track structure in the nuisance vibration of this frequency range, the object that realization reduces the low frequency vibration composition of ladder-type sleepers track.
Accompanying drawing explanation
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 structural representation of additional mass in the ladder-type sleepers track structure of passive type power vibration damping of the present invention;
Fig. 6 is the another kind of structural representation of the ladder-type sleepers track structure additional mass of passive type power vibration damping of the present invention;
Fig. 7 is the overall schematic of the ladder-type sleepers track structure embodiment 4 of passive type power vibration damping of the present invention;
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, connecting elements 102, additional mass 103, rail 104, fastener 105, brace foundation 106.
The specific embodiment
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, comprise a pair of laterally spaced longitudinal ladder-type sleepers 101 being arranged on brace foundation 106, this is to ladder-type sleepers 101 by connecting as one along the spaced connecting elements 102 of circuit bearing of trend, and rail 104 is fixed on ladder-type sleepers 101 by fastener 105.On described ladder-type sleepers 101 or brace foundation 106 ascender line road bearing of trends be 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.
The present invention is not by reducing track structure intrinsic frequency, not by increasing sleeper quality or sleeper support stiffness, realize the object of low frequency vibration damping, but the principle of employing passive type dynamic absorber, by additional spring-damping-quality minor structure on sleeper, suitably select the form of structure of this minor structure, kinetic parameter and and track structure between coupled relation, in expection frequency range, make the vibration phase of minor structure contrary with the vibrational state of sleeper or sleeper brace foundation, by the large displacement vibration of additional mass, realization reduces the object of the low frequency vibration composition of track structure.
The present invention is the additional mass 103 with its resilient connection by setting on ladder-type sleepers 101 or on brace foundation 106, form of structure by choose reasonable additional mass, kinetic parameter and and track structure between coupled relation, just the vibration phase that can realize mass in track structural natural frequencies section is contrary with the vibration phase of sleeper or sleeper brace foundation, reaches and eliminates track structure in the nuisance vibration of this 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 reach 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 a plurality of cell blocks.Described elastic component is rubber, spring, synthetic resin or reinforcing bar.Ladder-type sleepers 101 is made by steel 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, and adjacent two connecting elementss 102 form installing space 101a, and at least one additional mass 103 is set conventionally in this installing space 101a.
Embodiment 1: as shown in Figure 1, described additional mass 103 is connected with the inside wall elasticity of a longitudinal ladder-type sleepers 101 in installing space 101a.
Embodiment 2: as shown in Figure 2, described additional mass 103 is in installing space 101a, and its both sides are connected with the inside wall elasticity of a longitudinal ladder-type sleepers 101 respectively.
Embodiment 3: as shown in Figure 3, described additional mass 103 be take two as one group, and two additional masses 103 in same group are connected with inside wall, the lateral wall elasticity of a longitudinal ladder-type sleepers 101 respectively.
Embodiment 4: as shown in Fig. 4, Fig. 7, on described two longitudinal ladder-type sleepers 101, one group of additional mass 103 is respectively set, two additional masses 103 in same group are connected with inside wall, the lateral wall elasticity of a longitudinal ladder-type sleepers 101 respectively.
Embodiment 5: as shown in Figure 8, described additional mass 103 is connected with brace foundation 106 elasticity in installing space 101a.Additional mass 103 both can embed in brace foundation 106, or was attached to the surface of brace foundation 106.
Some principles of the ladder-type sleepers track structure of the above passive type power vibration damping of the present invention that just explains through diagrams, be not the present invention to be confined to shown in and in described concrete structure and the scope of application, therefore the corresponding modify being likely utilized every and equivalent, all belong to the scope of the claims that the present invention applies for.
Claims (8)
1. the ladder-type sleepers track structure of passive type power vibration damping, 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.
2. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, is characterized in that: described additional mass (103) is connected with the inside wall elasticity of a longitudinal ladder-type sleepers (101).
3. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, is characterized in that: the both sides of described additional mass (103) are connected with the inside wall elasticity of a longitudinal ladder-type sleepers (101) respectively.
4. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, it is characterized in that: described additional mass (103) be take two as one group, two additional masses (103) in same group are connected with inside 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, is characterized in that: on described two longitudinal ladder-type sleepers (101), one group of additional mass (103) is respectively set.
6. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, is characterized in that: described additional mass (103) is overall structure, or is combined by a plurality of cell blocks.
7. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, is characterized in that: described additional mass (103) is reinforced concrete block or the larger block of metallic material of density.
8. the ladder-type sleepers track structure of passive type power vibration damping as claimed in claim 1, is characterized in that: 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 |
| PCT/CN2014/000686 WO2015014096A1 (en) | 2013-07-30 | 2014-07-21 | Passive dynamic vibration absorption track plate |
| RU2016102953A RU2624147C1 (en) | 2013-07-30 | 2014-07-21 | Plate for rail track, passively absorbing dynamic vibrations |
Applications Claiming Priority (1)
| 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 |
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| CN103526652A true CN103526652A (en) | 2014-01-22 |
| CN103526652B CN103526652B (en) | 2016-05-11 |
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| CN201310528573.7A Active CN103526652B (en) | 2013-07-30 | 2013-10-30 | The ladder-type sleepers track structure of passive type power vibration damping |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN104594139A (en) * | 2015-01-20 | 2015-05-06 | 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 |
| CN110983868A (en) * | 2019-12-31 | 2020-04-10 | 中铁二院工程集团有限责任公司 | Fixed-frequency passive dynamic vibration absorption track structure and frequency design method |
| 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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Cited By (6)
| 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 |
| CN104594139A (en) * | 2015-01-20 | 2015-05-06 | 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 |
| CN110983868A (en) * | 2019-12-31 | 2020-04-10 | 中铁二院工程集团有限责任公司 | Fixed-frequency passive dynamic vibration absorption track structure and frequency design method |
| 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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