CN203546525U - Trapezoid sleeper rail structure for passive dynamic vibration reduction - Google Patents
Trapezoid sleeper rail structure for passive dynamic vibration reduction Download PDFInfo
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- CN203546525U CN203546525U CN201320680881.7U CN201320680881U CN203546525U CN 203546525 U CN203546525 U CN 203546525U CN 201320680881 U CN201320680881 U CN 201320680881U CN 203546525 U CN203546525 U CN 203546525U
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- type sleepers
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Abstract
A trapezoid sleeper rail structure for passive dynamic vibration reduction aims to reduce vibration components with the frequency close to the inherent frequency of a rail structure so as to eliminate harmful vibration of the rail structure at the frequency band. The trapezoid sleeper rail structure comprises a pair of longitudinal trapezoid sleepers (101) arranged on a supporting foundation (106) and transversely spaced, the trapezoid sleepers (101) are connected as a whole through connecting components (102) arranged at intervals in the extending direction of a line, and steel rails (104) are fixed to the trapezoid sleepers (101) through buckles (105). The trapezoid sleeper rail structure is characterized in that added mass blocks (103) are arranged at intervals on the trapezoid sleepers (101) or on the supporting foundation (106) in the extending direction of the line, and the added mass blocks (103) are connected with the trapezoid sleepers (101) or the supporting foundation (106) in an elastic mode through elastic components. The trapezoid sleeper rail structure for passive dynamic vibration reduction aims to reduce the vibration components with the frequency close to the inherent frequency of the rail structure so as to eliminate harmful vibration of the rail structure at the frequency band.
Description
Technical field
The utility model 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 train load and be passed to the vibration of 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.
Utility model content
Technical problem to be solved in the utility model 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 the nuisance vibration of track structure in this frequency range.
It is as follows that the utility model solves this technical problem taked technical scheme:
The ladder-type sleepers track structure of passive type power vibration damping of the present utility model, 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 beneficial effects of the utility model are, 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 the utility model passive type power vibration damping;
Fig. 2 is ladder-type sleepers track structure embodiment 2 schematic diagrames of the utility model passive type power vibration damping;
Fig. 3 is ladder-type sleepers track structure embodiment 3 schematic diagrames of the utility model passive type power vibration damping;
Fig. 4 is ladder-type sleepers track structure embodiment 4 schematic diagrames of the utility model passive type power vibration damping;
Fig. 5 is the structural representation of additional mass in the ladder-type sleepers track structure of the utility model passive type power vibration damping;
Fig. 6 is the another kind of structural representation of the ladder-type sleepers track structure additional mass of the utility model passive type power vibration damping;
Fig. 7 is the overall schematic of the ladder-type sleepers track structure embodiment 4 of the utility model passive type power vibration damping;
Fig. 8 is the schematic diagram of the ladder-type sleepers track structure embodiment 5 of utility model 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 utility model is elaborated.
With reference to Fig. 1 or Fig. 8, the ladder-type sleepers track structure of the utility model passive type power vibration damping, 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 utility model 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 utility model 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 multiple 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 is 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.
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 the utility model passive type power vibration damping that just explains through diagrams, be not the utility model 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 utility model is applied 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) is 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: 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, is characterized in that: described additional mass (103) is overall structure, or is combined by multiple 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680881.7U CN203546525U (en) | 2013-10-30 | 2013-10-30 | Trapezoid sleeper rail structure for passive dynamic vibration reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680881.7U CN203546525U (en) | 2013-10-30 | 2013-10-30 | Trapezoid sleeper rail structure for passive dynamic vibration reduction |
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| Publication Number | Publication Date |
|---|---|
| CN203546525U true CN203546525U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680881.7U Expired - Lifetime CN203546525U (en) | 2013-10-30 | 2013-10-30 | Trapezoid sleeper rail structure for passive dynamic vibration reduction |
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| CN (1) | CN203546525U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526652A (en) * | 2013-10-30 | 2014-01-22 | 中铁二院工程集团有限责任公司 | Passive type power vibration reduction trapezoidal sleeper track structure |
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2013
- 2013-10-30 CN CN201320680881.7U patent/CN203546525U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103526652A (en) * | 2013-10-30 | 2014-01-22 | 中铁二院工程集团有限责任公司 | Passive type power vibration reduction trapezoidal sleeper track structure |
| CN103526652B (en) * | 2013-10-30 | 2016-05-11 | 中铁二院工程集团有限责任公司 | The ladder-type sleepers track structure of passive type power vibration damping |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |