CN105350403B - Track plates and track plates vibration insulating system with periodic structure feature - Google Patents
Track plates and track plates vibration insulating system with periodic structure feature Download PDFInfo
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- CN105350403B CN105350403B CN201510642947.7A CN201510642947A CN105350403B CN 105350403 B CN105350403 B CN 105350403B CN 201510642947 A CN201510642947 A CN 201510642947A CN 105350403 B CN105350403 B CN 105350403B
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- track plates
- track
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- cycle
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B1/00—Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
- E01B1/002—Ballastless track, e.g. concrete slab trackway, or with asphalt layers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
- E01B19/003—Means for reducing the development or propagation of noise
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2204/00—Characteristics of the track and its foundations
- E01B2204/06—Height or lateral adjustment means or positioning means for slabs, sleepers or rails
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Road Paving Structures (AREA)
- Railway Tracks (AREA)
Abstract
A kind of track plates with periodic structure feature, are formed if the track plates are superimposed with each other by dried layer periodic substructure；The composition material of adjacent periodic substructure is different, and the thickness of each layer periodic substructure is determined according to orbit altitude and effectiveness in vibration suppression requirement, and vibration damping is realized by elastic wave band gaps principle.The thickness of each layer periodic substructure is identical；The thickness of each layer periodic substructure shows raising effectiveness in vibration suppression with vibration wavelength one of interest, and vibration damping is realized by elastic wave band gaps principle.A kind of track plates vibration insulating system with periodic structure feature, including described track plates, fastener system, rail, base, CAM screeds and boss；The rail is fixed on track plates by fastener system；The track plates are placed on base by CAM mortars, and along circuit bearing of trend continuous laying.The track plates vibration insulating system can be used in urban track traffic, high-speed railway, heavy haul railway and common railway.The present invention contributes to urban track traffic, high-speed railway, heavy haul railway and the control of common railway vibration and noise reducing, while has the advantages of structure type is simple, constructs and be easy to maintenance flexible.
Description
Technical field
The invention belongs to technical field of rail traffic, is related to railway track structure, be especially adapted for use in urban track traffic,
A kind of damping type ballastless track structure of high-speed railway, heavy haul railway and common railway.
Background technology
With the fast development of track traffic, its caused vibration problem increasingly highlights.Track structure is both vibration source, is again
One of important route of transmission, its damping capacity can directly affect the vibratory response of final track traffic surrounding environment.
In terms of existing track structure vibration reducing measure is mainly around part rigidity and increase part damping two is reduced, but its
Certain influence can be produced on security, the comfortableness of train operation in actual applications.For fastener vibration reducing measure, MSDS
Bright, the application of rail dampener fastener and pioneer's type fastener in China's subway is unsatisfactory, induces serious rail corrugation,
And ripple mill aggravation can cause the dither of wheel track on the contrary, cause the resonance of vehicle.To find out its cause, when reducing the rigidity of fastener,
Most vibrational energy is isolated with infrastructure, vibrational energy is concentrated on rail, and the damage to rail is larger.And if
Sub-rail foundation is softer, and the vibration displacement of rail even can reach 4~5mm, have a strong impact on the safe operation of top vehicle.For
Floating plate track vibration damping, it has preferable damping property for intrinsic frequency with super band, but when the frequency of load is less than
During the intrinsic frequency of floating harden structure, the damping property of floating plate is undesirable, or even vibration can be exaggerated.In addition, under plate
Soil rigidity reduces, and on the one hand increases the vertical dynamic displacement of rail level, and on the other hand the vertical deviation of increasing adjacent orbit plate is poor, draws
The irregularity of rail level is played, the two, which is combined, easily causes top train derailing, influences the security of train operation.
The content of the invention
Periodic structure is a kind of structure type accumulated in the same fashion by its elementary cell, in solids
In Neo-Confucianism, periodic structure has the decay domain characteristic to elastic wave, i.e. band gap properties.When the frequency of elastic wave falls in decay domain
When in the range of (band gap), the propagation of ripple will be greatly attenuated.And the frequency of elastic wave is when decaying outside domain (band gap), elastic wave will
Successfully it can propagate forward.
Inspired by periodic structure band gap properties, the present invention proposes that a kind of track traffic has periodic structure feature
Track plates vibration insulating system, by rationally designing geometric parameter and material parameter, the decay domain of one fixed width can be produced, and can
Cover the dominant frequency of all kinds of vibrations so that protected or environment influence structure body vibration significant attenuation.Compared to other vibration dampings
Form, track harden structure of the invention have the advantage that:
(1) the band gap properties vibration damping of periodic structure in itself is utilized, it is not necessary to additional other structures.
(2) periodic structure decay domain has certain width, rather than single frequency.Therefore, periodic structure can isolate
Vibration in the range of certain frequency, possesses higher synthesis damping property.
The purpose of the present invention is to solve the shortcomings of the prior art and defect, propose that a kind of track traffic has and periodically tie
The track plates vibration insulating system of structure feature, its is simple in construction, different from the past simple by reduction track structure part rigidity and increasing
Add the vibration damping thinking of damping, by changing the structure of track plates itself, when the rigidity for ensureing track structure is sufficiently high, using bullet
Property ripple bandgap principle realize vibration damping purpose, contribute to urban track traffic, high-speed railway and heavy haul railway vibration and noise reducing control, promote
Enter social harmonious development, be particularly suitable for a kind of vibration damping of urban track traffic, high-speed railway, heavy haul railway and common railway
Type ballastless track structure.
To reach above-mentioned purpose, the present invention uses following technical scheme：
A kind of track plates with periodic structure feature, if the track plates be superimposed with each other by dried layer periodic substructure and
Into；The composition material of adjacent periodic substructure is different, and the thickness of each layer periodic substructure is according to orbit altitude and vibration damping
Effect requirements and determine, vibration damping is realized by elastic wave band gaps principle.
Further, the thickness of each layer periodic substructure is identical, to form 2 layers of cycle of equal intervals, 3 layers of cycle
Or multilayered cylindrical shell；In other words, be exactly 2 layers of different materials plate as a cycle unit, or 3 layers of different materials
Plate is as a cycle unit, by that analogy.
The thickness of each layer periodic substructure shows raising effectiveness in vibration suppression with vibration wavelength one of interest.
The shape of cross section of the track plates includes rectangle.
The track plates length direction or width or length direction set simultaneously with width some cycles from
Periodic arrangement at equal intervals is presented necessarily on longitudinal length and transverse width direction from structure in structure, the cycle；Preferably, institute
The cycle is stated to be combined by obturator or perforated from structure and form an entirety；Preferably, the obturator include column obturator and
Coniform obturator.
Structure number of the cycle from structure in the range of length and width should all be more than 3；Preferably, its structure chi
It is very little less than track board size 1/10；Preferably, the cycle is concordant with track plates from structural thickness.
Track needs the wavelength of the ripple of vibration damping shorter, and the cycle is from structure in unit length, width and thickness model
Quantity in enclosing is more.
The periodic substructure and cycle from the material of structure can be armored concrete, rubber, alloy material or metal etc.
Material.
A kind of track plates vibration insulating system with periodic structure feature, including above-mentioned track plates, fastener system, steel
Rail, base, CAM (Cement Asphalt Mortar) screeds and boss；The rail is fixed on track by fastener system
On plate；The track plates are placed on base by CAM mortars, and along circuit bearing of trend continuous laying.
The described track plates vibration insulating system with periodic structure feature is in urban track traffic, high-speed railway, heavy duty
Application in railway and common railway.
By adopting the above-described technical solution, the invention has the advantages that：
1. by changing the structure type of track plates, using the band gap properties of periodic structure, ensureing track panel stiffness
And when not adding other structures, effectiveness in vibration suppression is reached；
2. using the thinking of structural vibration reduction, reduce in traditional vibration damping thinking to the hidden of train operational safety and stationarity
Suffer from；
3. the vibration that this track plates vibration insulating system with periodic structure feature can isolate in the range of certain frequency, tool
Standby higher synthesis damping property；
4. periodic characteristic track plates structure type is simple, construct and easy to maintenance flexible.
Brief description of the drawings
Fig. 1 is vibration insulating system embodiment --- the thickness of track plates of track plates of the present invention comprising periodic structure feature
Direction sets the rail system schematic diagram of layered periodic structure.
Fig. 2 is in embodiment illustrated in fig. 1 --- the thickness direction of track plates sets the rail system of layered periodic structure
Left view.
Fig. 3 is in embodiment illustrated in fig. 1 --- the length and width direction of track plates sets the rail system of periodic structure
Schematic diagram.
Fig. 4 is in embodiment illustrated in fig. 1 --- the length and width direction of track plates sets the rail system of periodic structure
Left view.
Fig. 5 is in the embodiment of the present invention --- there is the structural representation of the track plates of periodic structure feature.
Marked in figure as follows：1- periodic track plates, 2- fastener systems, 3- rail, 4- bases, 5-CAM screeds, 6- are convex
Platform, 7- period 1 minor structures, 8- second round minor structures, 9- holes, 10- obturators.
Embodiment
The present invention will be further described with reference to the accompanying drawings.
Fig. 1-3 are referred to, the present invention includes：A kind of track traffic has the track plates vibration damping system of periodic structure feature
System, it includes the track plates 1 with periodic structure feature, and track plates 1 include equally spaced period 1 minor structure 7 and second
Periodic substructure 8, both are formed by stacking；Base 4, CAM screeds 5 and boss 6；Track plates 1 are placed in bottom by CAM screeds 5
On seat 4, and along circuit bearing of trend continuous laying.
Track plates 1 can realize track structure laterally and longitudinally how spacing constraint by boss 6.
Embodiment 1：Track plates 1 are provided with some stratiform gap periods substructures in thickness range, and track plates 1 include
Period 1 minor structure 7 and second round minor structure 8, and period 1 minor structure 7 and second round minor structure 8 its physical dimension
It is same or like, and composition material is different, preferably, the material of period 1 minor structure 7 and second round minor structure 8 can be with
For concrete, rubber and metal etc., as Figure 1-Figure 2.
The thickness design of the period 1 minor structure 7 and second round minor structure 8 of track plates 1 will consider orbit altitude
With the factor such as effectiveness in vibration suppression, preferably, taking the thickness of period 1 minor structure 7 and second round minor structure 8 with being closed
Note vibration wavelength is consistent, and effectiveness in vibration suppression is notable.
Its thickness direction shape of cross section of track plates 1 can be some rectangular flats and be folded with any shape plate and shell structure
Close and form preferably, take rectangle stratiform thin plate, its good damping result, difficulty of construction is low.
Periodic track plate 1 can need to form 2 layers of cycle of interval, 3 layers of cycle or multilayered cylindrical shell according to vibration damping.
In other words, periodic track plate 1 can also further include period 3 minor structure, period 4 minor structure etc. more
More minor structures, the physical dimension of each minor structure is identical or close, as long as so that forming material between two adjacent minor structures
Expect it is entirely different, likewise, preferably, each minor structure material can be concrete, rubber and metal etc., such as Fig. 1-figure
Shown in 2.
Embodiment 2：The periodic track plate 1 also can be in length direction, width or length direction and width
Some cycles are set to include hole 9 and obturator 10, these described holes from structure from structure, these described cycles simultaneously
It must be identical physical dimension, the distribution of identical rule, in all directions equidistantly, while also contemplate for setting in these holes 9
Some columns or cone and other shapes of obturator 10 are put, are overlapped into an entirety with periodic track plate 1 afterwards,
Periodic arrangement at equal intervals is presented necessarily on length longitudinal direction and width transverse direction, as shown in Figure 3-Figure 5.Preferably, except column
Periodically outside the form of structure 9, can also using coniform periodicity, it subtracts from structure, normal cone and inverted cone
Effect of shaking is good, and difficulty of construction is low.
Knot of the cycle of the periodic track plate 1 from the hole 9 and obturator 10 of structure in the range of length and width
Structure number should all be more than 3, and its physical dimension is less than the 1/10 of track plates 1, and its effectiveness in vibration suppression is notable；In order to construct and conserve dimension
Repair conveniently, the cycle should be concordant with track plates 1 from structural thickness.
Track needs the wavelength of the ripple of vibration damping shorter, and cycle of described periodic track plate 1 is from the hole 9 of structure and fills out
It is more to fill the periodicity in the range of certain length, width and thickness of body 10.
The periodic substructure of the periodic track plate 1 and cycle can use concrete slab, vulcanie plate from structure, close
The material such as golden plate of material or metallic plate forms.
During concrete application, rail 3 is fixed on the periodic track plate 1 of continuous laying by fastener system 2.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using this hair
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without by performing creative labour.Therefore, the invention is not restricted to above-mentioned implementation
Example, for those skilled in the art according to the announcement of the present invention, not departing from improvement that scope made and modification all should be
Within protection scope of the present invention.
Claims (3)
- A kind of 1. track plates with periodic structure feature, it is characterised in that：If the track plates are by dried layer periodic substructure It is superimposed with each other and forms；The composition material of adjacent periodic substructure is different, and the thickness of each layer periodic substructure is according to track Height and effectiveness in vibration suppression are required and determined, vibration damping is realized by elastic wave band gaps principle；The track plates are in length direction or width Degree direction or length direction and width set some cycles from structure simultaneously, the cycle from structure in longitudinal length and Necessarily periodic arrangement at equal intervals is presented on transverse width direction, the cycle is combined by obturator or perforated from structure into one It is overall；The thickness of each layer periodic substructure is identical, to form 2 layers of cycle of equal intervals, 3 layers of cycle or multilayer week Phase structure；The thickness of each layer periodic substructure shows raising effectiveness in vibration suppression with vibration wavelength one of interest；The track plates Shape of cross section include rectangle；Structure number of the cycle from structure in the range of length and width should all be more than 3；Institute The cycle is stated from the physical dimension of structure less than the 1/10 of track board size, the cycle is concordant with track plates from the thickness of structure, described Obturator includes column obturator and coniform obturator；Track needs the wavelength of the ripple of vibration damping shorter, and the cycle is from structure Quantity in the range of unit length, width and thickness is more；The periodic substructure and cycle can from the material of structure For armored concrete, rubber or metal material.
- A kind of 2. track plates vibration insulating system with periodic structure feature, it is characterised in that：Including the rail described in claim 1 Guidance tape（1）, fastener system（2）, rail（3）, base（4）, CAM screeds（5）And boss（6）；The rail（3）Pass through fastener System（2）It is fixed on track plates（1）On；The track plates（1）Pass through CAM screeds（5）It is placed in base（4）On, and along circuit Bearing of trend continuous laying.
- 3. the track plates vibration insulating system with periodic structure feature described in claim 2 is in urban track traffic, high-speed iron Application in road, heavy haul railway and common railway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642947.7A CN105350403B (en) | 2015-09-30 | 2015-09-30 | Track plates and track plates vibration insulating system with periodic structure feature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510642947.7A CN105350403B (en) | 2015-09-30 | 2015-09-30 | Track plates and track plates vibration insulating system with periodic structure feature |
Publications (2)
| Publication Number | Publication Date |
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| CN105350403A CN105350403A (en) | 2016-02-24 |
| CN105350403B true CN105350403B (en) | 2017-11-10 |
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| CN105951541A (en) * | 2016-06-16 | 2016-09-21 | 同济大学 | Vibration damping structure, vibration damping pad and using method thereof |
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| CN110332267A (en) * | 2019-06-25 | 2019-10-15 | 东南大学 | A kind of adjustable multilayered cylindrical shell of density |
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| CN112359652B (en) * | 2020-11-02 | 2021-11-05 | 中南大学 | Ballastless track plate structure for realizing broadband vibration reduction based on phononic crystal principle |
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| CN113201982B (en) * | 2021-04-20 | 2021-11-02 | 北京城建设计发展集团股份有限公司 | Vibration reduction method of rail transit structure |
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| CN113792455A (en) * | 2021-08-26 | 2021-12-14 | 广州地铁设计研究院股份有限公司 | Vibration reduction method for unit track plate |
| CN115305757B (en) * | 2021-12-23 | 2024-03-26 | 山东建筑大学 | Metamaterial roadbed and construction method thereof |
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Effective date of registration: 20190318 Address after: 201713 No. 6690-6 Huqingping Highway, Zhujiajiao Town, Qingpu District, Shanghai Patentee after: Shanghai Juren Railway Equipment Co., Ltd. Address before: No. 1239, Siping Road, Yangpu District, Shanghai Patentee before: Tongji University |