CN108660956A - Combined orbit traffic sound wind barrier - Google Patents
Combined orbit traffic sound wind barrier Download PDFInfo
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- CN108660956A CN108660956A CN201810825418.4A CN201810825418A CN108660956A CN 108660956 A CN108660956 A CN 108660956A CN 201810825418 A CN201810825418 A CN 201810825418A CN 108660956 A CN108660956 A CN 108660956A
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- wind barrier
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- 230000004888 barrier function Effects 0.000 title claims abstract description 229
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
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- 230000009467 reduction Effects 0.000 abstract description 5
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- 238000009434 installation Methods 0.000 description 6
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0011—Plank-like elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F7/00—Devices affording protection against snow, sand drifts, side-wind effects, snowslides, avalanches or falling rocks; Anti-dazzle arrangements ; Sight-screens for roads, e.g. to mask accident site
- E01F7/02—Snow fences or similar devices, e.g. devices affording protection against sand drifts or side-wind effects
- E01F7/025—Devices specially adapted for protecting against wind, e.g. screens, deflectors or attenuators at tunnel or lock entrances
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The invention discloses a kind of combined orbit traffic sound wind barriers, including more root posts, column is along the longitudinally spaced both sides for being arranged in elevated line of elevated line and is fixed on pedestal or bottom surface, sound of the wind barrier segment is equipped between two adjacent upright in elevated line homonymy, sound of the wind barrier segment includes be oriented to aerial drainage to prevent crosswind air-flow from causing the wind barrier layer of gas shock to the vehicle travelled in elevated line and for preventing vehicle in elevated line from travelling the acoustic barrier layer that the noise generated transmits outward for offside general mood stream, wind barrier layer and acoustic barrier layer overlap laying, and wind barrier layer is laid towards elevated line outside, acoustic barrier layer is laid towards vehicle running region, gap between gap and acoustic barrier layer between wind barrier layer constitutes the flow-guiding channel of crosswind air-flow.The combined orbit traffic sound wind barrier of the present invention, by the way that sound of the wind barrier segment to be installed on the column of elevated line both sides, while meeting elevated line wind resistance and noise reduction requirement.
Description
Technical field
The present invention relates to technical field of rail traffic, particularly, are related to a kind of combined orbit traffic sound wind barrier.
Background technology
The construction cost and operation energy consumption of urban rail transit elevated circuit have larger compared to underground cable and ground line
Advantage, therefore numerous domestic urban transportation takes elevated line system of laying, such as sky way, aerial conveyor, elevated bridge.
Due to frame around the track bridge of eminence without obstacles such as trees, cause the train travelled in elevated line generate noise more
It is easily transmitted, cause noise pollution.
At present to solve the problems, such as noise pollution, by installing sound barrier panel in the both sides of elevated line, although certain
It solves the problems, such as noise pollution in degree, but does not consider frame around the track of eminence without trees or other buildings
The blocking of object, the crosswind air-flow bigger of elevated line both sides, especially for the coastal area for having strong wind weather often, overhead route
Vehicle in the crosswind gas shock running region of road both sides, the especially air-flow when the direction of crosswind air-flow is vertical with vehicle body cover
Impact force is maximum, reduces travel safety and comfort, since sound barrier is airfast plate framework, though it blocks overhead
The air-flow of circuit both sides directly acts on vehicle, but the wind suffered by elevated line is increased while gas shock sound barrier panel
It carries, influences the stability of the overhead routes line structure such as sky way, aerial conveyor, elevated bridge.
Invention content
The present invention provides a kind of combined orbit traffic sound wind barriers, to solve existing traffic elevated line both sides
Sound barrier cannot be satisfied the technical issues of wind resistance requirement of traffic elevated line.
According to an aspect of the present invention, a kind of combined orbit traffic sound wind barrier, including more root posts, column are provided
It along the longitudinally spaced both sides for being arranged in elevated line of elevated line and is fixed on pedestal or bottom surface, is in elevated line homonymy
Two adjacent upright between be equipped with sound of the wind barrier segment, sound of the wind barrier segment include for offside general mood stream carry out guiding and aerial drainage
To prevent crosswind air-flow from causing the wind barrier layer of gas shock to the vehicle travelled in elevated line and for preventing overhead route
The acoustic barrier layer that the noise that road vehicle traveling generates transmits outward, wind barrier layer and acoustic barrier layer overlap laying, and wind screen
Barrier layer is laid towards laying on the outside of elevated line, acoustic barrier layer towards vehicle running region, the gap harmony between wind barrier layer
Gap between barrier layer constitutes the flow-guiding channel of crosswind air-flow.
Further, sound wind barrier further include be fixedly arranged on column for connect the cross connecting plate of two adjacent upright with
And the longitudinally spaced arrangement along elevated line and the connection rib that is fixedly arranged on cross connecting plate, cross connecting plate and/or connection rib
For installing wind barrier layer and acoustic barrier layer.
Further, wind barrier layer includes being fixedly arranged on connection rib and the polylith that is vertically intervally arranged keeps out the wind leaf
Piece.
Further, between the spacing between the adjacent blade that keeps out the wind is adjustable and/or the blade face and vertical direction of the blade that keeps out the wind
Angle it is adjustable.
Further, the blade that keeps out the wind is equipped with towards the blade face on the outside of elevated line for improving the flow conductivity of the blade that keeps out the wind
The tuyere of energy.
Further, acoustic barrier layer includes connecting set on the sound barrier panel on column top and set on connection rib and/or transverse direction
Resonator on fishplate bar；Resonator is the cavity equipped with opening and is open towards vehicle running region；Or the inner cavity of resonator
It is divided into multiple not connected separate chambers, separate chamber is equipped with opening and is open towards vehicle running region.
Further, it is open as the gap on resonator, through-hole, at least one of straight slot.
Further, resonator includes different the first resonator and the second resonator of frequency of noise elimination；Multiple first sympathetic responses
Chamber is arranged in the upper and lower part of acoustic barrier layer with multiple second resonators respectively；Or first resonator and the second resonator phase
Between lay；Or multiple first resonators and multiple second resonator interphase distributions；Or multiple first resonators and one
Two resonator interphase distributions；Or multiple first resonators are arranged in the both sides of acoustic barrier layer with multiple second resonators respectively,
Multiple first resonators are laid between multiple second resonators and wind barrier layer.
Further, the cavity inner wall of resonator is equipped with sound absorbing layer, and sound absorbing layer is that the sound-absorbing being sprayed on cavity inner wall applies
The sound-absorption hole for expecting, investing the sound-absorbing material on cavity inner wall and/or being laid on cavity inner wall.
Further, sound barrier panel is tilted towards vehicle running region, is bent or bent.
The invention has the advantages that：
The combined orbit traffic sound wind barrier of the present invention, by the way that sound of the wind barrier segment is installed on elevated line both sides
On column, while meeting elevated line wind resistance and noise reduction requirement；By wind barrier layer offside general mood stream carry out be oriented to and aerial drainage with
Prevent crosswind air-flow from causing gas shock to the vehicle travelled in elevated line；The noise that vehicle running region vehicle generates passes through
Acoustic barrier layer is also stopped by wind barrier layer after reducing absorption, further reduces the noise transmitted outward；Pass through wind barrier layer
It overlapping and lays with acoustic barrier layer, wind barrier layer is laid towards laying on the outside of elevated line, acoustic barrier layer towards vehicle running region,
Gap of the crosswind air-flow after the guiding of wind barrier layer and aerial drainage across wind barrier layer is again by acoustic barrier layer to crosswind
Air-flow is led further to and aerial drainage, and a part of crosswind air-flow is blocked in outer, a part of crosswind gas by wind barrier layer and acoustic barrier layer
It is passed through from the gap between wind barrier layer and the gap between acoustic barrier layer after flowing through wind barrier layer and acoustic barrier layer water conservancy diversion, due to
The angle of the vehicle body cover of the vehicle travelled on crosswind air-flow and elevated line after water conservancy diversion reduces, therefore very to the impact of vehicle
Small, the blocking by wind barrier layer and acoustic barrier layer offside general mood stream and water conservancy diversion avoid crosswind air-flow to elevated line uplink
The vehicle sailed causes gas shock, improves safety and the comfort of driving, and the gap between wind barrier layer and sound barrier
Gap between layer provides the channel of air-flow free flow, reduces wind barrier layer and is transferred to elevated line with acoustic barrier layer
Wind load improves the stability of the overhead routes line structure such as sky way, aerial conveyor, elevated bridge.
Other than objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to figure, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the structural schematic diagram of the combined orbit traffic sound wind barrier of the preferred embodiment of the present invention；
Fig. 2 is the vertical section structure schematic diagram of the combined orbit traffic sound wind barrier of the preferred embodiment of the present invention；
Fig. 3 is the cross-sectional structure schematic diagram of the combined orbit traffic sound wind barrier of the preferred embodiment of the present invention；
Fig. 4 is the structural schematic diagram of the combined orbit traffic sound wind barrier of another embodiment of the present invention.
Marginal data：
1, column；2, cross connecting plate；3, rib is connected；4, keep out the wind blade；5, resonator；51, the first resonator；52,
Two resonators；53, third resonator；6, sound barrier panel.
Specific implementation mode
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the structural schematic diagram of the combined orbit traffic sound wind barrier of the preferred embodiment of the present invention；Fig. 2 is the present invention
The vertical section structure schematic diagram of the combined orbit traffic sound wind barrier of preferred embodiment；Fig. 3 is the preferred embodiment of the present invention
The cross-sectional structure schematic diagram of combined orbit traffic sound wind barrier；Fig. 4 is that the combined orbit of another embodiment of the present invention is handed over
The structural schematic diagram of logical sound wind barrier.
As shown in Figure 1, the combined orbit traffic sound wind barrier of the present embodiment, including more root posts 1, column 1 is along overhead
The longitudinally spaced both sides for being arranged in elevated line of circuit are simultaneously fixed on pedestal or bottom surface, adjacent in elevated line homonymy
Between two columns 1 be equipped with sound of the wind barrier segment, sound of the wind barrier segment include for offside general mood stream carry out be oriented to and aerial drainage to prevent
Only crosswind air-flow causes the wind barrier layer of gas shock to the vehicle travelled in elevated line and for preventing elevated line
The acoustic barrier layer that the noise that vehicle traveling generates transmits outward, wind barrier layer and acoustic barrier layer overlap laying, and wind barrier layer
It is laid on the outside of towards elevated line, acoustic barrier layer is laid towards vehicle running region, the gap between wind barrier layer and sound barrier
Gap between layer constitutes the flow-guiding channel of crosswind air-flow.The combined orbit traffic sound wind barrier of the present invention, by by sound of the wind
Barrier segment is installed on the column 1 of elevated line both sides, while meeting elevated line wind resistance and noise reduction requirement；Pass through wind barrier
Layer offside general mood stream be oriented to and aerial drainage is to prevent crosswind air-flow from causing gas shock to the vehicle travelled in elevated line；Vehicle
The noise that running region vehicle generates also is stopped by wind barrier layer after acoustic barrier layer is reduced and absorbed, and further reduces
The noise transmitted outward；It is laid by wind barrier layer and acoustic barrier layer overlapping, wind barrier layer is laid towards elevated line outside, sound
Barrier layer is laid towards vehicle running region, and crosswind air-flow is after the guiding of wind barrier layer and aerial drainage across wind barrier layer
Gap led further to again by acoustic barrier layer offside general mood stream and aerial drainage, a part of crosswind air-flow is by wind barrier layer and sound-screen
Outside barrier layer is blocked in, a part of crosswind air-flow is after wind barrier layer and acoustic barrier layer water conservancy diversion from the gap harmony between wind barrier layer
Gap between barrier layer passes through, due to the angle of the vehicle body cover of the vehicle travelled in crosswind air-flow and the elevated line after water conservancy diversion
Reduce, therefore very small to the impact of vehicle, the blocking by wind barrier layer and acoustic barrier layer offside general mood stream and water conservancy diversion avoid
Crosswind air-flow causes gas shock to the vehicle travelled in elevated line, improves safety and the comfort of driving, and wind
The gap between gap and acoustic barrier layer between barrier layer provides the channel of air-flow free flow, reduce wind barrier layer with
Acoustic barrier layer is transferred to the wind load of elevated line, improves the overhead routes line structure such as sky way, aerial conveyor, elevated bridge
Stability.
As depicted in figs. 1 and 2, sound wind barrier further includes being fixedly arranged on column 1 close to vehicle running region side and connecting phase
The cross connecting plate 2 of adjacent two columns 1 and along elevated line longitudinally spaced arrangement and be fixedly arranged on cross connecting plate 2 close to height
Connection rib 3 on side on the outside of stringing road, cross connecting plate 2 and/or connection rib 3 are for installing wind barrier layer and sound barrier
Layer.Sound wind barrier segment must bear the impact of multiple and different direction air-flows, especially crosswind air-flow, it is therefore necessary to have centainly
Structural stability, by by wind barrier layer and acoustic barrier layer be installed on cross connecting plate 2 and connection rib 3 on, cross connecting plate 2 with
The support rack that rib 3 constitutes wind barrier layer and acoustic barrier layer is connected to carry while making wind barrier layer that laying be laminated with acoustic barrier layer
The high structural stability of sound wind barrier segment.
As depicted in figs. 1 and 2, wind barrier layer includes being fixedly arranged on the polylith being intervally arranged on connection rib 3 and vertically
Keep out the wind blade 4.Keep out the wind blade 4 upper blade face and lower blade face be streamlined.Crosswind air-flow on the outside of elevated line is kept off by polylith
Change flow direction after air blade 4, the vehicle travelled in elevated line to avoid crosswind air-flow from directly acting on influences driving
Safety and stability.Optionally, the blade 4 that keeps out the wind is made of the sound-absorbing material with intensity and toughness.Optionally, it keeps out the wind
It is equipped with interlayer in blade 4, sound-absorbing material is filled in interlayer.The blade 4 that keeps out the wind to the lateral wind air flow guiding of elevated line and is let out
Noise caused by vehicle in a part of elevated line is also absorbed while stream.
In another embodiment of the invention, sound wind barrier further includes being fixedly arranged on column 1 close to vehicle running region side
And the cross connecting plate 2 of two adjacent upright 1 is connected, polylith cross connecting plate 2 is vertically intervally arranged.Wind barrier layer includes
It is fixedly arranged on the leaf that keeps out the wind of the longitudinally spaced arrangement on cross connecting plate 2 on the side on the outside of elevated line and along elevated line
Piece 4.
As shown in Fig. 2, the spacing between the adjacent blade 4 that keeps out the wind is adjustable and/or the blade face for the blade 4 that keeps out the wind and vertical direction it
Between angle it is adjustable.The angle to keep out the wind between the spacing of blade 4 and the blade face and vertical direction of the blade 4 that keeps out the wind is according to sound wind screen
The cardinal wind on barrier installation ground is adjusted.The angle to keep out the wind between the blade face and vertical direction of blade 4 is pacified less than sound wind barrier
The angle between the cardinal wind and vertical direction on ground is filled, so that it is guaranteed that the air-flow on the outside of elevated line, a part is by the leaf that keeps out the wind
Piece 4 stops that a part is passed through by the water conservancy diversion for the blade 4 that keeps out the wind from the gap for keeping out the wind blade 4, since the direction of air-flow changes,
Therefore avoid air-flow directly impact driving vehicle cause to drive a vehicle it is unstable.Optionally, the blade 4 that keeps out the wind is installed on by rotary shaft
It connects on rib 3.Multiple blades that keep out the wind are connected by simultaneous attachment mechanism.Simultaneous attachment mechanism is connect with driving device, passes through drive
Dynamic device driving simultaneous attachment mechanism vertically moves up and down and drives blade rotation of keeping out the wind to change the angle for the blade 4 that keeps out the wind
Degree.Optionally, connection rib 3 is equipped with the mounting groove of multiple and different angles and different spacing.Blade 4 keep out the wind by being installed on difference
Mounting groove in the spacing between changing angle and the blade 4 that keeps out the wind.Optionally, connection rib 3 is equipped with sliding slot, and keep out the wind blade
4 are installed in sliding slot and are connect with driving device, drive the blade 4 that keeps out the wind to be slided up and down along sliding slot to change gear by driving device
Spacing between air blade 4 and the adjacent blade 4 that keeps out the wind.
The blade 4 that keeps out the wind is equipped with the tuyere of the guide performance for improving the blade 4 that keeps out the wind.The vertical sectional shape of tuyere is in V
Shape or U-shaped.The lateral wind of elevated line, which enters in tuyere, to be flowed after bottom reflection towards elevated line outside, to reduce
A part of lateral wind enters vehicle running region to be caused to impact to driving.
As shown in Figure 1, Figure 2 and Figure 3, acoustic barrier layer includes set on the sound barrier panel 6 on 1 top of column and set on connection rib
3 and/or cross connecting plate 2 on resonator 5；Resonator 5 is the cavity equipped with an opening and is open towards vehicle running region；
Or the inner cavity of resonator 5 is divided into multiple not connected separate chambers 5, separate chamber 5 is equipped with opening and is open towards vehicle
Running region.The sound wave of noise caused by the vehicle travelled in elevated line enters along opening in cavity, the air of opening
Column generates strenuous exercise due to resonance and reduces the biography of noise with cavity inner wall severe friction to largely consume acoustic wave energy
It broadcasts.When sound frequency and resonant frequency closer to when, acoustic absorptivity is bigger, and sound absorption effect is better.Sound barrier panel 6 is made an uproar for stopping
Sound is propagated from top.Optionally, sound barrier panel 6 is using acrylic board, glass epoxy, metal micro-holes acoustic board and/color steel.
As shown in figure 3, opening is the gap on resonator 5, through-hole, at least one of straight slot.The suction of resonator 5
Acoustic frequency is related to the depth of the sectional area of opening, the volume of resonator 5 and opening.In the present embodiment, it is open as set on altogether
Gap on 5 body of tymapanum.5 volume of resonator and gap it is of same size in the case of, 5 body of depth, that is, resonator in gap
The sound absorption frequency of thickness more big then resonator 5 is lower.In the case where the thickness of 5 body of the volume of resonator 5 and resonator communicates,
The sound absorption frequency of the width in gap more narrow then resonator 5 is lower.Therefore, it can be selected not according to the noisy frequency range of elevated line
With the resonator 5 of sound absorption frequency.
As shown in Figure 1, Figure 2 and Figure 3, resonator 5 includes the first identical or different resonator 51 and second of frequency of noise elimination
Resonator 52.The noisy frequency range caused by the vehicle running region of the elevated line where the installation of sound wind barrier compares
When wide, acoustic barrier layer is laid in multiple second resonators 52 by the way that different multiple first resonators 51 of frequency of noise elimination are arranged
Different zones and the noise for absorbing different frequency respectively, to widen the sound absorption range of acoustic barrier layer.When the peace of sound wind barrier
When noisy frequency range caused by the vehicle running region of elevated line where filling is relatively simple, by the way that frequency of noise elimination is arranged
The different zones that identical multiple first resonators 51 are laid in acoustic barrier layer with multiple second resonators 52 concentrate absorption identical
The noise of frequency range.Optionally, multiple first resonators 51 are arranged in acoustic barrier layer respectively with multiple second resonators 52
Upper and lower part.Multiple first resonators 51 are fixedly arranged between two cross connecting plates 2 on top, each first resonator 51 with
The top for connecting rib 3 is affixed.Multiple second resonators 52 are fixedly arranged between two cross connecting plates 2 of lower part, and each second is total
Tymapanum 52 is affixed with the lower part for connecting rib 3.First resonator 51 and the second resonator 52 are respectively used to absorb obstructed overfrequency
Noise.Acoustic barrier layer and the installation of wind barrier layer are integrated by cross connecting plate 2 and connection rib 3, improve combined orbit
The whole stability and wind load resistance ability of traffic sound wind barrier.
Optionally, the first resonator 51 laying alternate with the second resonator 52.Optionally, multiple first resonators 51 with it is more
A second resonator, 52 interphase distribution.Optionally, multiple first resonators 51 and 52 interphase distribution of the second resonator.Pass through
The laying alternate with the second resonator of first resonator, the noise of multi-frequency can be absorbed by making acoustic barrier layer multiple regions.Wherein,
The sound absorption frequency and quantity of the first resonator and the second resonator are selected according to the noise frequency of elevated line.
Optionally, resonator 5 includes identical or different the first resonator 51 and the second resonator 52 of frequency of noise elimination.It is multiple
First resonator 51 is arranged in the both sides of acoustic barrier layer with multiple second resonators 52 respectively, and multiple first resonators 51 are laid in
Between multiple second resonators 52 and wind barrier layer.Multiple first resonators 51 are laid in lateral connection along the longitudinal direction of elevated line
Plate is close to the side of wind barrier layer.Multiple second resonators 52 are laid in cross connecting plate close to vehicle along the longitudinal direction of elevated line
The side of running region.The acoustic barrier layer that the acoustic barrier layer that multiple first resonators 51 are constituted is constituted with multiple second resonators 52
Form multilayer acoustic barrier layer.The noise frequency caused by the vehicle running region of the elevated line where the installation of sound wind barrier
When range is wider, by the way that different multiple first resonators 51 of frequency of noise elimination and multiple second resonators 52, overhead route is arranged
Noise caused by the vehicle running region on road first passes through the second resonator 52 and absorbs a part of noise by the first resonator
51 absorb a part of noise, improve the sound absorbing performance of acoustic barrier layer, have widened the sound absorption range of acoustic barrier layer.When sound wind barrier
Installation where elevated line vehicle running region caused by noisy frequency range it is relatively simple when, the vehicle of elevated line
Noise caused by running region first passes through the second resonator 52 and the first resonator 51 successively by noise absorbent, to will be single
The noise of one noise frequency fully absorbs.An air-flow part after wind barrier layer water conservancy diversion stopped by the first resonator 51,
A part after 51 water conservancy diversion of the first resonator from the gap between the first resonator 51 by passing through, and a part is by the second resonator 52
Stopped, a part from the gap between the second resonator 52 after 52 further water conservancy diversion of the second resonator by entering vehicle traveling
In region, since the angle of the vehicle body cover of airflow direction and driving vehicle is very small after water conservancy diversion three times for air-flow, to avoid gas
Stream causes to impact to vehicle body, improves the safety and stability of driving.Gap between resonator 5 provides air-flow free flow
Logical channel reduces wind barrier layer and is transferred to the wind load of elevated line with acoustic barrier layer, improves sky way, elevated rail
The stability of the overhead routes line structure such as road, elevated bridge.
In the present embodiment, resonator 5 includes different the first resonator 51, the second resonator 52 and the third of frequency of noise elimination
Resonator 53, multiple first resonators 51 along elevated line longitudinal arrangement in the top of acoustic barrier layer, multiple second resonators
52 along elevated line longitudinal arrangement in the lower part of acoustic barrier layer, multiple third resonators 53 along elevated line longitudinal arrangement simultaneously
It is fixedly arranged on cross connecting plate 2, the first resonator 51 and the second resonator 52 are between third resonator 53 and wind barrier layer.
In vehicle running region vehicle generate noise initially enter distance closer to third resonator 53, by third resonator 53 will
Other sound frequencies are absorbed by the first resonator 51 and the second resonator 52 respectively again after the noise absorbent of a part of sound frequency
Noise.Since the region that resonator 5 is installed on connection rib 3 is limited, if 5 quantity of resonator of installation is excessive, between resonator 5
Gap it is too small, cause the clear passage of air-flow narrow, wind load suffered by sound wind barrier increases, and the power for being transferred to bridge increases,
The structural stability of reduction sound wind barrier and bridge.By adding third resonator 53 on cross connecting plate 2, sympathetic response is increased
The quantity of chamber 5 has widened the sound absorption range of acoustic barrier layer, and still has certain gap to constitute air-flow between resonator 5
Clear passage.
As shown in figure 4, in another embodiment, resonator 5 is in a row along the longitudinal arrangement of elevated line.Multiple rows of resonator 5
Vertically arrange.Often row's resonator 5 absorbs a kind of noise of frequency, and multiple rows of resonator 5 absorbs making an uproar for different frequency respectively
Sound.The noise for absorbing different frequency respectively by the multiple rows of resonator 5 vertically arranged, to widen acoustic barrier layer
Absorb sound range.An air-flow part after wind barrier layer water conservancy diversion stopped by 55 body of resonator, a part by resonator 5 into
After one step water conservancy diversion between every row's resonator 5 and resonator 5 gap and multiple rows of resonator 5 between gap in enter vehicle
In running region, since air-flow changes through water conservancy diversion rear direction, air-flow will not impact vehicle body, improve driving safety and
Stability.Gap between resonator 5 provides the channel of air-flow free flow, reduces wind barrier layer and is transmitted with acoustic barrier layer
To the wind load of elevated line, the stability of the overhead routes line structure such as sky way, aerial conveyor, elevated bridge is improved.
The cavity inner wall of resonator 5 is equipped with sound absorbing layer, and sound absorbing layer is the sound deadening coating being sprayed on cavity inner wall, invests chamber
Sound-absorbing material on wall and/or the sound-absorption hole being laid on cavity inner wall in vivo.Optionally, sound-absorbing material is mulberry paper, thin suction
Sound felt, foamed plastics, acoustical cotton and multi-void fiber material.Optionally, the keep out the wind surface of blade 4 and resonator 5 is coated with
Sound deadening coating.Sound deadening coating is sprayed at the concrete dynamic modulus cotton like coating that surface forms 2mm-10mm, and the sound wave of noise gos deep into hole
Friction by air molecule and viscosity resistance reduce sonic propagation of making an uproar to make acoustic energy be converted to thermal energy.By in resonator
Sound absorbing layer is arranged in 5 cavity inner wall, and the sound absorbing performance of each sound frequency of resonator is made to significantly improve.
As shown in Fig. 2, sound barrier panel 6 is tilted towards vehicle running region, is bent or bent.Optionally, sound barrier panel 6 is in
Waveform or zigzag.Optionally, sound barrier panel 6 is horizontally located in the top of column 1.If sound barrier panel 6 is vertically arranged to stand
1 upper end of column causes the whole height of sound wind barrier excessively high and influences the stability of structure, and the air-flow of elevated line both sides is direct
Sound barrier panel 6 is impacted, wind load suffered by sound barrier panel 6 is caused to increase, the power for being transferred to elevated line increases, and reduces elevated line
Safety.Noise is easy to propagate from eminence if height is relatively low, by tilting sound barrier panel 6 towards vehicle running region,
Bending or bending, the noise propagated from top encounter 6 back reflection of sound barrier panel, effectively prevent sound wave diffraction.The present embodiment
In, sound barrier panel 6 is bent towards vehicle running region.The surface in 6 outside of sound barrier panel is streamlined, reduces sound barrier panel 6
Suffered wind load.
It can be seen from the above description that the above embodiment of the present invention realizes following technique effect：
The combined orbit traffic sound wind barrier of the present invention, by the way that sound of the wind barrier segment is installed on elevated line both sides
On column, while meeting elevated line wind resistance and noise reduction requirement；By wind barrier layer offside general mood stream carry out be oriented to and aerial drainage with
Prevent crosswind air-flow from causing gas shock to the vehicle travelled in elevated line；The noise that vehicle running region vehicle generates passes through
Acoustic barrier layer is also stopped by wind barrier layer after reducing absorption, further reduces the noise transmitted outward；Pass through wind barrier layer
It overlapping and lays with acoustic barrier layer, wind barrier layer is laid towards laying on the outside of elevated line, acoustic barrier layer towards vehicle running region,
Gap of the crosswind air-flow after the guiding of wind barrier layer and aerial drainage across wind barrier layer is again by acoustic barrier layer to crosswind
Air-flow is led further to and aerial drainage, and a part of crosswind air-flow is blocked in outer, a part of crosswind gas by wind barrier layer and acoustic barrier layer
It is passed through from the gap between wind barrier layer and the gap between acoustic barrier layer after flowing through wind barrier layer and acoustic barrier layer water conservancy diversion, due to
The angle of the vehicle body cover of the vehicle travelled on crosswind air-flow and elevated line after water conservancy diversion reduces, therefore very to the impact of vehicle
Small, the blocking by wind barrier layer and acoustic barrier layer offside general mood stream and water conservancy diversion avoid crosswind air-flow to elevated line uplink
The vehicle sailed causes gas shock, improves safety and the comfort of driving, and the gap between wind barrier layer and sound barrier
Gap between layer provides the channel of air-flow free flow, reduces wind barrier layer and is transferred to elevated line with acoustic barrier layer
Wind load improves the stability of the overhead routes line structure such as sky way, aerial conveyor, elevated bridge.
The invention belongs to state natural sciences fund (508580), state natural sciences fund (U1534206) and countries
One of emphasis research and development plan (2017YFB1201204) content, to ensure that rail transit train safety and comfort operation provides technology branch
It holds.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of combined orbit traffic sound wind barrier, including more root posts (1), the column (1) is along the longitudinal direction of elevated line
It is intervally arranged in the both sides of elevated line and is fixed on pedestal or bottom surface,
It is characterized in that,
Sound of the wind barrier segment, the sound of the wind barrier segment are equipped between adjacent two column (1) in elevated line homonymy
Include be oriented to aerial drainage to prevent crosswind air-flow from causing air-flow to the vehicle travelled in elevated line for offside general mood stream
The acoustic barrier layer that the wind barrier layer of impact and noise for preventing the traveling of vehicle in elevated line from generating transmit outward,
The wind barrier layer and the acoustic barrier layer overlap laying, and the wind barrier layer is laid towards elevated line outside,
The acoustic barrier layer is laid towards vehicle running region, between the gap and the acoustic barrier layer between the wind barrier layer between
Gap constitutes the flow-guiding channel of crosswind air-flow.
2. combined orbit traffic sound wind barrier according to claim 1, which is characterized in that
The sound wind barrier further includes that the transverse direction for connecting adjacent two column (1) being fixedly arranged on the column (1) connects
Fishplate bar (2) and the longitudinally spaced arrangement along elevated line and the connection rib (3) that is fixedly arranged on the cross connecting plate (2),
The cross connecting plate (2) and/or the connection rib (3) are for installing the wind barrier layer and the acoustic barrier layer.
3. combined orbit traffic sound wind barrier according to claim 2, which is characterized in that
The wind barrier layer includes being fixedly arranged on the polylith being intervally arranged on connection rib (3) and vertically to keep out the wind blade
(4)。
4. combined orbit traffic sound wind barrier according to claim 3, which is characterized in that
Between spacing between the adjacent blade (4) that keeps out the wind is adjustable and/or the blade face and vertical direction of the blade that keeps out the wind (4)
Angle it is adjustable.
5. combined orbit traffic sound wind barrier according to claim 3, which is characterized in that
The blade that keeps out the wind (4) is equipped with the water conservancy diversion for improving blade (4) of keeping out the wind towards the blade face on the outside of elevated line
The tuyere of performance.
6. combined orbit traffic sound wind barrier according to claim 2, which is characterized in that
The acoustic barrier layer include set on the column (1) top sound barrier panel (6) and set on the connection rib (3) and/
Or the resonator (5) on the cross connecting plate (2)；
The resonator (5) is the cavity equipped with opening and is open towards vehicle running region；
Or the inner cavity of the resonator (5) is divided into multiple not connected separate chambers, the separate chamber be equipped with opening and
It is open towards vehicle running region.
7. combined orbit traffic sound wind barrier according to claim 6, which is characterized in that
The opening is the gap on the resonator (5), through-hole, at least one of straight slot.
8. combined orbit traffic sound wind barrier according to claim 6, which is characterized in that
The resonator (5) includes different the first resonator (51) of frequency of noise elimination and the second resonator (52)；
Multiple first resonators (51) are arranged in the upper of the acoustic barrier layer respectively with multiple second resonators (52)
Portion and lower part；
Or first resonator (51) and the alternate laying of second resonator (52)；
Or multiple first resonators (51) and multiple second resonator (52) interphase distributions；
Or multiple first resonators (51) and the second resonator (52) interphase distribution；
Or multiple first resonators (51) are arranged in the two of acoustic barrier layer respectively with multiple second resonators (52)
Side, multiple first resonators (51) are laid between multiple second resonators (52) and wind barrier layer.
9. combined orbit traffic sound wind barrier according to claim 2, which is characterized in that
The cavity inner wall of the resonator (5) be equipped with sound absorbing layer, the sound absorbing layer be the sound deadening coating being sprayed on cavity inner wall,
The sound-absorption hole for investing the sound-absorbing material on cavity inner wall and/or being laid on cavity inner wall.
10. combined orbit traffic sound wind barrier according to claim 2, which is characterized in that
The sound barrier panel (6) tilts towards vehicle running region, is bent or bends.
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| CN201810825418.4A CN108660956B (en) | 2018-07-25 | 2018-07-25 | Combined track traffic sound and wind barrier |
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| CN111519552A (en) * | 2020-04-30 | 2020-08-11 | 招商局重庆交通科研设计院有限公司 | Bridge sound insulation protective screen |
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| CN113605266A (en) * | 2021-08-03 | 2021-11-05 | 湖南建工集团有限公司 | Intelligent sound and wind barrier system and control method thereof |
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| CN108660956B (en) | 2023-11-03 |
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