CN207091844U - A kind of track girder of set effect of vibration and noise reduction suitable for suspension type monorail traffic - Google Patents
A kind of track girder of set effect of vibration and noise reduction suitable for suspension type monorail traffic Download PDFInfo
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- CN207091844U CN207091844U CN201720994956.7U CN201720994956U CN207091844U CN 207091844 U CN207091844 U CN 207091844U CN 201720994956 U CN201720994956 U CN 201720994956U CN 207091844 U CN207091844 U CN 207091844U
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Abstract
The utility model provides a kind of track girder of the set effect of vibration and noise reduction suitable for suspension type monorail traffic, including track girder top plate, track web and track girder bottom plate, track web is vertically arranged between track girder top plate and track girder bottom plate, track web and track girder bottom plate are provided with two groups, are symmetricly set on the both sides of track girder top plate center line；Protection slab is set on the inside of track web, and protection slab is fixedly connected between track web and track girder bottom plate, and perforate is provided with protection slab；Acoustic damping materials are provided between track web and protection slab, track web and protection slab are flexibly connected by acoustic damping materials.The beneficial effects of the utility model are can effectively to control the running noises level of suspension type monorail traffic horizontal horizontal with vibration level, by vibration and noise reducing together as one, noise reduction and damping effect are played simultaneously, reduces construction investment, and structure design compact and reasonable to greatest extent.
Description
Technical field
The utility model belongs to technical field of rail traffic, more particularly, to a kind of collection suitable for suspension type monorail traffic
Close the track girder of effect of vibration and noise reduction.
Background technology
Suspension type monorail is the middle freight volume Orbital Transport Systems that a kind of vehicle and special track girder are combined into one operation, its
Track girder is not only the load-carrying members of vehicle, while is the guide rail of vehicle operation.It is common with subway system, light rail systems
Form three kinds of classifications of urban track traffic.Suspension type monorail (monorail train) system has the characteristics of scientific and technological, ecological, efficient,
System uses electric propulsion, does not produce exhaust emission.Under the conditions of identical transport power, compared with public transport (highway), Neng Gouyou
The reduction city exhaust emissions and noise pollution of effect, can drastically reduce the area the discharge capacity of vehicle exhaust, the sky to improving city
Compression ring border will have remarkable effect, but train operation can bring certain noise and vibration etc. to influence to area along the line, also can be to city
City's environment produces certain negative effect.
In urban track traffic, the noise reduction measure and vibration reducing measure of subway system and light rail systems all need independently separately to set
Put.Noise reduction measure mainly realizes that vibration reducing measure is mainly using Damping fastening, damping steel using measures such as acoustic barrier, interferometers
The measures such as rail are realized.Suspension type monorail traffic can not be set acoustic barrier, interferometer, be subtracted due to the design feature of its track girder
Shake the measures such as fastener, damping steel rail, therefore, the vibration and noise reducing measure for suspension type monorail traffic design feature exists at home
Blank.
The content of the invention
The shortcomings that the purpose of this utility model is to overcome prior art, there is provided a kind of suitable for suspension type monorail traffic
Gather the track girder of effect of vibration and noise reduction, can effectively control the running noises level level and vibration level water of suspension type monorail traffic
It is flat.
In order to solve the above technical problems, the technical solution adopted in the utility model is：One kind is applied to suspension type monorail and handed over
The track girder of logical set effect of vibration and noise reduction, including track girder top plate, track web and track girder bottom plate, the track girder
Web is vertically arranged between the track girder top plate and the track girder bottom plate, the track web and the track girder bottom
Plate is provided with two groups, is symmetricly set on the both sides of the track girder top plate center line；Mask is set on the inside of the track web
Plate, the protection slab are fixedly connected between the track web and the track girder bottom plate, are provided with the protection slab
Perforate；It is provided with acoustic damping materials between the track web and the protection slab, the acoustic damping materials are by the track soffit of girder
Plate and protection slab flexible connection.
Further, the thickness of the acoustic damping materials is 5-8 centimetres, and porosity is not less than 80%, density 15-25kg/
m3。
Further, each two row of the perforate transverse and longitudinal is a hole group, and the perforate distance in the hole group is 50 millis
Meter, fore-and-aft distance is 90 millimeters between the hole group, and lateral separation is 100 millimeters between the hole group.
Further, a length of 120 millimeters of the hole of the perforate, a height of 30 millimeters of the hole of the perforate.
Further, the protection slab uses almag plate.
Further, the acoustic damping materials are mineral wool.
The utility model has the advantages and positive effects of：Due to using above-mentioned technical proposal, can effectively control outstanding
The running noises level of hanging monorail transit is horizontal and vibration level is horizontal, by vibration and noise reducing together as one, while plays noise reduction and vibration damping
Effect, reduces construction investment, and structure design compact and reasonable to greatest extent.More specifically, the utility model has as follows
Advantage：
(1) protection slab of perforate is provided with the inside of track web, track web can be substituted to play train travelling process
The effect of middle guiding, the vertical bearing capacity of energy strengthened rail web, to play the effect of damping, reduce train during
The track web vertical motion of itself, and then reduce vibration transmission of the track girder to foundation structures such as bridge buttress, supports；
(2) protection slab selects magnesium-aluminum alloy plate, there is stronger rigidity, can play a part of the internal acoustic damping materials of protection；
(3) acoustic damping materials select mineral wool, play Noise Reduction, reduce the leakage volume from track girder bottom opening, reach
The effect of sqouynd absorption lowering noise；
(4) acoustic damping materials take into account the flexible connection between track web and protection slab, strengthen the damping of protection slab,
Avoid track web from being resonated with protection slab, reduce track girder and secondary structure noise occurs.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model mask plate structure schematic diagram.
In figure：
1st, track girder top plate 2, track web 3, track girder bottom plate
4th, protection slab 401, perforate 402, hole group
5th, acoustic damping materials 6, track girder bottom opening
Embodiment
In order that those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.Obviously, described embodiment is only one of the present utility model
Divide embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
The every other embodiment obtained under the premise of creative work is made, belongs to the scope of the utility model protection.It should be noted that
For purposes of clarity, accompanying drawing and explanation in eliminate it is unrelated with the utility model, known to persons of ordinary skill in the art
Part and the expression and description of processing.
As depicted in figs. 1 and 2, the present embodiment provides a kind of set effect of vibration and noise reduction suitable for suspension type monorail traffic
Track girder, including track girder top plate 1, track web 2 and track girder bottom plate 3, track web 2 be vertically arranged at track girder
Between top plate 1 and track girder bottom plate 3, track web 2 and track girder bottom plate 3 are provided with two groups, are symmetricly set on track girder
The both sides of the center line of top plate 1；
The inner side of track web 2 sets protection slab 4, and protection slab 4 is fixedly connected on track web 2 and track girder bottom plate 3
Between, some perforates are provided with protection slab 4；
Acoustic damping materials 5 are provided between track web 2 and protection slab 4, the thickness of acoustic damping materials is 5-8 centimetres, hole
Rate is to ensure the key parameter of absorption, and porosity is not less than 80%, density 15-25kg/m3, acoustic damping materials, which play to absorb sound, to be made
With reducing the leakage volume from track girder bottom opening 6, reach the effect of noise reduction.The consolidation of acoustic damping materials 5 is filled in the track soffit of girder
Between plate 2 and protection slab 4, track web 2 and protection slab 4 are flexibly connected by acoustic damping materials 5, strengthen the damping effect of protection slab 4
Fruit, avoid track web 2 from being resonated with protection slab 4, reduce track girder and secondary structure noise occurs.
Each two row of the transverse and longitudinal of perforate 401 is a hole group 402, and the perforate 401 in hole group 402 is apart from for 50 millimeters, hole group 402
Between fore-and-aft distance be 90 millimeters, 402 lateral separations of hole group be 100 millimeters.A length of 120 millimeters of the hole of perforate 401, perforate 401
A height of 30 millimeters of hole.Perforate 401 is provided with protection slab 4, Running Train Noise can be made to pass through protection slab inside track girder
4, reach in the built-in acoustic damping materials 5 for playing sound absorption, reach the purpose of noise reduction.Using the structure of regular perforate 401, energy
While ensureing acoustically effective, it is further substituted track web 2 and plays the effect being oriented in train travelling process.
In order to protect internal acoustic damping materials 5, the vertical bearing capacity of strengthened rail web 2, to play the effect of damping, subtract
Small train vertical motion of itself of track web 2 during, and then track girder is reduced to bases such as bridge buttress, supports
The vibration transmission of structure, protection slab 4 use almag plate, and thickness is consistent with track web 2, are 24 millimeters, height
It is consistent with track web 2, it is 1100 millimeters, the distance between protection slab 4 is 780 millimeters, and therefore, track girder internal diameter is a height of
1100 millimeters, a width of 780 millimeters, track girder bottom opening 6 is 240 millimeters.
Acoustic damping materials 5 are mineral wool, and the thickness of mineral wool is 5 centimetres, and porosity is to ensure the key parameter of absorption, hole
Gap rate is not less than 80%, density 20kg/m3.Show that the mineral wool adopted the structure is as drop by reverberation test test
Make an uproar material 5, its absorption can reach 15db (A) left and right.
Track girder needs Widening Design, to keep track girder internal diameter size constant, does not configure the track girder of vibration and noise reducing measure
Internal diameter design size is wide 780 millimeters to be high 1100 millimeters.Therefore needed each at left and right sides of the track girder of configuration vibration and noise reducing measure
Widen 74 millimeters (50 millimeters of 24 millimeters of protection slab and sound-absorbing materials), widen 148 millimeters altogether.
The beneficial effects of the utility model are：Due to that using above-mentioned technical proposal, effectively suspension type monorail can be controlled to hand over
Logical running noises level is horizontal and vibration level is horizontal, by vibration and noise reducing together as one, while plays noise reduction and damping effect, maximum limit
The reduction construction investment of degree, and structure design compact and reasonable.More specifically, the utility model has the following advantages that：
(1) protection slab of perforate is provided with the inside of track web, track web can be substituted to play train travelling process
The effect of middle guiding, the vertical bearing capacity of energy strengthened rail web, to play the effect of damping, reduce train during
The track web vertical motion of itself, and then reduce vibration transmission of the track girder to foundation structures such as bridge buttress, supports；
(2) protection slab selects magnesium-aluminum alloy plate, there is stronger rigidity, can play a part of the internal acoustic damping materials of protection；
(3) acoustic damping materials select mineral wool, play Noise Reduction, reduce the leakage volume from track girder bottom opening, reach
The effect of sqouynd absorption lowering noise；
(4) acoustic damping materials take into account the flexible connection between track web and protection slab, strengthen the damping of protection slab,
Avoid track web from being resonated with protection slab, reduce track girder and secondary structure noise occurs.
One or more embodiments of the present utility model are described in detail above, but the content is only this practicality
New preferred embodiment, it is impossible to be considered as being used to limit practical range of the present utility model.It is all according to present utility model application model
Made equivalent change and improvement etc. are enclosed, all should still be belonged within patent covering scope of the present utility model.
Claims (6)
- A kind of 1. track girder of set effect of vibration and noise reduction suitable for suspension type monorail traffic, it is characterised in that：Including track Back plate, track web and track girder bottom plate, the track web are vertically arranged at the track girder top plate and the rail Between road beam bottom plate, the track web and the track girder bottom plate are provided with two groups, are symmetricly set on the track girder The both sides of top plate center line；Protection slab is set on the inside of the track web, and the protection slab is fixedly connected on the track soffit of girder Between plate and the track girder bottom plate, perforate is provided with the protection slab；Between the track web and the protection slab Acoustic damping materials are provided with, the track web and the protection slab are flexibly connected by the acoustic damping materials.
- 2. the track girder of the set effect of vibration and noise reduction according to claim 1 suitable for suspension type monorail traffic, it is special Sign is：The thickness of the acoustic damping materials is 5-8 centimetres, and porosity is not less than 80%, density 15-25kg/m3。
- 3. the track girder of the set effect of vibration and noise reduction according to claim 1 suitable for suspension type monorail traffic, it is special Sign is：Each two row of perforate transverse and longitudinal is a hole group, and the perforate distance in the hole group is 50 millimeters, the hole group Between fore-and-aft distance be 90 millimeters, lateral separation is 100 millimeters between the hole group.
- 4. the track girder of the set effect of vibration and noise reduction for being applied to suspension type monorail traffic according to claim 1 or 3, its It is characterised by：A length of 120 millimeters of the hole of the perforate, a height of 30 millimeters of the hole of the perforate.
- 5. the track girder of the set effect of vibration and noise reduction according to claim 1 suitable for suspension type monorail traffic, it is special Sign is：The protection slab uses almag plate.
- 6. the track girder of the set effect of vibration and noise reduction according to claim 1 suitable for suspension type monorail traffic, it is special Sign is：The acoustic damping materials are mineral wool.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720994956.7U CN207091844U (en) | 2017-08-10 | 2017-08-10 | A kind of track girder of set effect of vibration and noise reduction suitable for suspension type monorail traffic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720994956.7U CN207091844U (en) | 2017-08-10 | 2017-08-10 | A kind of track girder of set effect of vibration and noise reduction suitable for suspension type monorail traffic |
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| CN207091844U true CN207091844U (en) | 2018-03-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313308A (en) * | 2017-08-10 | 2017-11-03 | 中铁第六勘察设计院集团有限公司 | The vibration and noise reducing measure of suspension type monorail traffic and the track girder using the measure |
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2017
- 2017-08-10 CN CN201720994956.7U patent/CN207091844U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107313308A (en) * | 2017-08-10 | 2017-11-03 | 中铁第六勘察设计院集团有限公司 | The vibration and noise reducing measure of suspension type monorail traffic and the track girder using the measure |
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