CN108301260A - A kind of novel air rail road and application thereof - Google Patents
A kind of novel air rail road and application thereof Download PDFInfo
- Publication number
- CN108301260A CN108301260A CN201810282727.1A CN201810282727A CN108301260A CN 108301260 A CN108301260 A CN 108301260A CN 201810282727 A CN201810282727 A CN 201810282727A CN 108301260 A CN108301260 A CN 108301260A
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- China
- Prior art keywords
- bottom plate
- top plate
- rail road
- novel air
- partition board
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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
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a kind of novel air rail roads, include the top plate and bottom plate for the face that is mutually parallel, the top plate is located at right over bottom plate, further includes the partition board between being fixed on top plate and bottom plate, the divider upright is in top plate and bottom plate, and the top plate and bottom plate is by partition board or so decile；The bottom base plate is uniformly distributed several reinforcing ribs.The purpose of the present invention is to provide a kind of novel air rail roads and application thereof to realize the purpose that empty rail road cost is significantly reduced while meeting intensity requirement to solve the problems, such as that the hollow rail road of the prior art is of high cost, input is big.
Description
Technical field
The present invention relates to empty iron fields, and in particular to a kind of novel air rail road and application thereof.
Background technology
Empty iron, i.e. hanging type aerial monorail traffic system are a kind of countries in the world all in the urban transportation hair studied energetically
Open up direction.Empty iron is different from subway and tramcar, and the track of empty iron above, is suspended from the one kind run on overhead rail
Rail traffic.Empty iron is a kind of novel new energy public transport, the advantages of integrating bus rapid transit (BRT) and subway,
With alleviating, traffic congestion, carrying is efficient, at low cost, the construction period is short, be not take up parking lot, energy conservation and environmental protection etc. is numerous excellent
Point.Empty iron is suspended from greatly the lower section of the urban operating mechanisms such as overhead, bridge to reduce cost, or builds dedicated load bearing beam and carry out
Suspension.Either empty iron is hung using which kind of mode, is required for newly-built track, the operation being currently known or is building sky
Iron, track is all almost the same with the track of conventional track traffic, is only inverted conventional track and places, is equipped with limit appropriate again
Position part carries out anti-fall limit；Or traditional box track is directly used, so that wheel is carried out in the babinet of base closed
It rolls.However these existing empty rail roads are complicated, and input great amount of cost is needed to be built, and occupy the production of sky iron and build
If a large amount of economic resources, it is still less friendly for the cost input of empty iron construction.
Invention content
The purpose of the present invention is to provide a kind of novel air rail roads and application thereof, to solve the hollow rail road of the prior art
Problem of high cost, input is big realizes the purpose that empty rail road cost is significantly reduced while meeting intensity requirement.
The present invention is achieved through the following technical solutions：
A kind of novel air rail road includes the top plate and bottom plate for the face that is mutually parallel, and the top plate is located at right over bottom plate,
Further include the partition board between being fixed on top plate and bottom plate, the divider upright is in top plate and bottom plate, and the top plate and bottom plate is by partition board
Left and right decile；The bottom base plate is uniformly distributed several reinforcing ribs.
Problem of high cost for the hollow rail road of the prior art, input is big, the present invention propose a kind of novel air rail road,
Top plate and bottom plate are facing each other, and top plate is used to be fixed on the installation station of sky iron, such as under various elevated bridge urban operating mechanisms
Side, then bottom plate is lifted by partition board and is hung, top plate and bottom plate are connected into overall structure by partition board, it is ensured that of the invention
Globality.The fixation for carrying out and installing between station by top plate can be by stability of cavern roof since the contact surface of top plate is big
With installation station be attached, such as using on a large scale anchoring mode, with ensure entire track installation stabilization.It pushes up simultaneously
The presence of plate can also provide adequately connection enough for partition board, to avoid track in the distortion at turning, even if empty iron
Car body applies partition board larger centrifugal force at turning, and stress also can be integrally transferred on top plate by partition board disperses,
To greatly reduce the internal stress of partition board, it is ensured that clapboard stress is uniform and stable.Bottom plate is used to carry the weight of entire empty iron, and
The wheel for empty iron provides tracks simultaneously.In order to improve the structural strength of bottom plate and load-carrying properties and improve bottom plate
The ability of anti-pushing is also uniformly arranged several reinforcing ribs in bottom base plate, provides further support to bottom plate and reinforces, with true
Plate of guaranteeing the minimum integrally holds up empty iron car body.When the present invention is specifically used so that empty iron car body is located at below bottom plate, and in partition board two
Wheel is respectively set in side so that two wheels are all rolled on bottom plate, then two wheels are connected to sky iron car body.
Offer two wheels of power drive are only needed to be rotated at this time, wheel is rolled on bottom plate along bottom plate, you can to drive empty
Iron car body is moved, and due to there is the presence of partition board between two wheels, two wheels, which will not contact with each other, to be interfered,
By partition board can also good guiding be carried out to the direction of advance of wheel.In addition those skilled in the art are used as, it can also be the bottom of at
Guide groove that setting matches with wheel on plate etc. increases the guiding to wheel.The present invention has in structure compared to the prior art
Great simplification, if top plate and bottom plate, partition board are treated as a whole, their threes collectively constitute H-type structure, therefore use
Common H profile steel can be used as the main body in sky rail road, then it is the empty rail road in the present invention to mix reinforcing rib, is not only produced
It makes simple, of low cost, easy to maintain, and has meaning outstanding for the steel industry of industry surplus.By right
The present invention carries out finite element analysis, can clearly show that the intensity of the present invention is fully met with deformation quantity needed for the empty iron of suspension
Loading demands.Therefore, the present invention solves the problems, such as that the hollow rail road of the prior art is of high cost, input is big, and it is strong to realize satisfaction
The purpose of empty rail road cost is significantly reduced while degree requires.
Preferably, the end set connector of the top plate, the connector of two faces are detachably connected, the connector
For connecting adjacent two sections of novel air rails road.Empty iron orbital distance can not possibly be very short, therefore the present invention is as empty rail
It is unlikely to be overall structure when road is installed and used, needs to be attached the track of many sections certainly, this programme will connect
Point is arranged at the both ends of top plate, and the both ends of every piece of top plate are all connected by connector and the connector on adjacent top plate
It connects, is easily installed to realize sky rail road.Connection type between two connectors uses the company of rail in the prior art
It connects mode or multiple bolt silks connects, be not limited thereto.
Preferably, length direction equidistantly distributed of the reinforcing rib along bottom plate.The length direction of bottom plate is track
Traffic direction, therefore for running empty iron, reinforcing rib is distributed on traffic direction at equal intervals, suffered by bottom plate
The reinforcing rib that load can be constantly alternately present always is shared, so that it is guaranteed that the internal stress of base plate interior is evenly distributed, into
One step reduces the deformation after the instantaneous tension of bottom plate, and provides reaction force to bottom plate by reinforcing rib so that after instantaneous deformation
Bottom plate being capable of instant reset after load disappearance.
Further, the partition board passes through bottom plate from top to bottom, and it is extension, the reinforcement that partition board, which passes through the part of bottom plate,
Muscle is fixed on the both sides of extension.Reinforcing rib is divided into the two parts being distributed at left and right sides of bottom plate by extension so that position
The reinforcing rib that the load that wheel in partition board both sides applies bottom plate can be extended portion both sides respectively is undertaken, relative to whole
For the reinforcing rib setting of body formula, the materials, cost-effective of reinforcing rib can not only be reduced, simultaneously because the length of monolithic reinforcing rib
Degree becomes smaller, and even more greatly improves bend resistance distortion resistance.In addition, for the setting of the reinforcing rib of monoblock type, reinforce
Muscle both ends by very big load generate tenesmus deformation and intermediate position hardly by longitudinal force, this allows for reinforcing rib and is easy pine
It is dynamic to fall off or even be distorted, and pass through the setting in this programme, the compact uniform, carrying of internal stress distribution of monolithic reinforcing rib
Highly uniform stabilization, therefore the service life of reinforcing rib is obviously improved.
Preferably, two right-angle sides of the rectangular triangle of the reinforcing rib, the right angled triangle are separately fixed at bottom plate
Bottom surface, extension side；And two acute angles of the right angled triangle are flushed with the outer rim of bottom plate, extension respectively.This programme
In by extension more stable connection station is provided for reinforcing rib, avoid reinforcing rib from being connect with bottom plate only by a side
Lead to the problem that stability is poor so that the two sides of reinforcing rib can access connection.Meanwhile the reinforcement of rectangular triangle
Muscle structure so that bottom plate center line position is supported by the most thick position of both sides reinforcing rib simultaneously, is provided to bottom plate center line position
Greatly protection, is caused intermediate position to start asking for torsional deformation at first to avoid bottom plate both ends by the very big load that wheel applies
Topic so that the present invention integrally has high overall stability.
Preferably, the one end of the extension far from bottom plate is the distance between to bottom plate, the spacing between bottom plate and top plate
Ratio be 1:9~1:10.Look up from vertical, this programme be refer to extension height and partition board height ratio between 1:9 to
1:Between 10, the major function of extension is to improve the using effect of reinforcing rib, and reinforcing rib mainly overcomes lateral distortion
Deformation, therefore the main performance for influencing reinforcing rib is its thickness and intensity, the requirement for longitudinal length is relatively low instead.Therefore right
It answers, it, also need not very high request on longitudinal length, it is only necessary in septum plate length for the extension for connecting with separating reinforcing rib
1/9 to 1/10 between can satisfy the use demand, and also avoid sky iron car body and the wheel that is placed on it
Between difference in height it is excessive cause car body shake aggravation the problem of, also have the effect of raising car body operation stability.
Preferably, the top plate and bottom plate, partition board thickness be equal, top plate and bottom plate, partition board be integrally formed.Improve this hair
Bright globality and stress stability.
Further, the top plate and bottom plate is the arc-shaped to arch upward upwards, and the arc radius of top plate and bottom plate is equal.It is empty
In iron operational process, great pulling force can be generated to the track of upper part, in the process, bottom plate and top plate can all generate small
Deformation.When empty iron quickly through when, the deformation can Rapid reset, but when empty iron somewhere overstays, then can make
At the small reclinate deformation for being not easy to restore, although this deformation will not cause safety accident to empty iron normal operation,
But the running abrasion of empty iron and energy loss can be aggravated so that energy consumption bigger, repair are more frequent.This programme precisely in order to gram
It takes this problem and is arranged, top plate and bottom plate are disposed as the isometrical arc-shaped to arch upward upwards, on the ground for not generating deformation
Side, the process of upward slope descending is passed through in empty iron operation successively, although energy consumption increases during going up a slope, descending process energy depletion
It is few, therefore generally speaking energy consumption is held essentially constant, while the structure of this pre- arch camber can effectively offset being turned under for track
Song deformation so that the track after slight deformation tends to be horizontal, is conducive to smoothly passing for sky iron, and empty iron often enters track
The root track is just pulled down to by region tends to be horizontal so that be the running track of free iron be in an extreme it is small but
During beneficial level successively so that track can generate empty iron adaptive effect, greatly improve sky iron fortune
Stability during row.
Preferably, the arc radius of the top plate and bottom plate is R meters, wherein 700≤R≤800.Within this range, for
For several meters or tens meters of track, center of circle angular region is minimum, and only zero is several to the several years, convenient for out-of-date right with empty Tie Tong
The counteracting that the small sightless lower bending shape that track generates becomes, although entire track is connected by arc successively, naked eyes are completely
It is invisible, it not will produce any discomfort sense for passenger, can effectively improve ride experience instead.
Heretofore described novel air rail road is used for the guide rail as empty iron operation.No matter bottom plate, top plate or
On partition board, various guide frames can be set, the rotating direction of wheel is guided.
Compared with prior art, the present invention having the following advantages and advantages：
1, there is great simplification in a kind of novel air rail of the invention road in structure compared to the prior art, if will top
Plate, bottom plate, partition board are treated as a whole, their threes collectively constitute H-type structure, therefore can be used as using common H profile steel
The main body in empty rail road, then it is the empty rail road in the present invention to mix reinforcing rib, not only manufacture it is simple, of low cost,
It is easy to maintain, and have meaning outstanding for the steel industry of industry surplus.It is hollow that the present invention solves the prior art
The problem that rail road is of high cost, input is big realizes the purpose that empty rail road cost is significantly reduced while meeting intensity requirement.
2, heretofore described novel air rail road is used for the guide rail as empty iron operation.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings：
Fig. 1 is the side view of the specific embodiment of the invention；
Fig. 2 is the structural schematic diagram of the specific embodiment of the invention；
Fig. 3 is the overall deformation cloud atlas of the specific embodiment of the invention 2；
Fig. 4 is the equivalent stress cloud atlas of the specific embodiment of the invention 2；
Fig. 5 is the overall deformation cloud atlas of the specific embodiment of the invention 3；
Fig. 6 is the equivalent stress cloud atlas of the specific embodiment of the invention 3；
Fig. 7 is the overall deformation cloud atlas of the specific embodiment of the invention 4；
Fig. 8 is the equivalent stress cloud atlas of the specific embodiment of the invention 4；
Fig. 9 is the overall deformation cloud atlas of the specific embodiment of the invention 5；
Figure 10 is the equivalent stress cloud atlas of the specific embodiment of the invention 5.
Label and corresponding parts title in attached drawing：
1- top plates, 2- bottom plates, 3- partition boards, 31- extensions, 4- connectors, 5- reinforcing ribs.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation are only used for explaining the present invention, do not make
For limitation of the invention.
Embodiment 1：
A kind of novel air rail road as shown in Figures 1 and 2, including the top plate 1 for the face that is mutually parallel, bottom plate 2, the top
Plate 1 is located at right over bottom plate 2, further includes the partition board 3 being fixed between top plate 1, bottom plate 2, the partition board 3 is perpendicular to top plate 1, bottom
Plate 2, the top plate 1, bottom plate 2 are by 3 or so decile of partition board；2 bottom of the bottom plate is uniformly distributed several reinforcing ribs 5.The top
The connector 4 of the end set connector 4 of plate 1, two faces is detachably connected, and the connector 4 is for connecting adjacent two sections
Novel air rail road.Length direction equidistantly distributed of the reinforcing rib 5 along bottom plate 2.The partition board 3 passes through from top to bottom
Bottom plate 2, it is extension 31 that partition board 3, which passes through the part of bottom plate 2, and the reinforcing rib 5 is fixed on the both sides of extension 31.The reinforcement
Two right-angle sides of 5 rectangular triangle of muscle, the right angled triangle are separately fixed at 2 bottom surface of bottom plate, 31 side of extension；And institute
Two acute angles for stating right angled triangle are flushed with the outer rim of bottom plate 2, extension 31 respectively.The extension 31 is far from bottom plate 2
One end is the distance between to bottom plate 2, and the ratio of spacing is 1 between bottom plate 2 and top plate 1:9.5.The top plate 1, bottom plate 2, every
The thickness of plate 3 is equal, and top plate 1, bottom plate 2, partition board 3 are integrally formed.The top plate 1, bottom plate 2 are the circular arc to arch upward upwards
Shape, top plate 1, the arc radius of bottom plate 2 are equal.The top plate 1, bottom plate 2 arc radius be 781 meters.
Embodiment 2：
A kind of novel air rail road as shown in Figures 1 to 4, on the basis of embodiment 1, top plate 1, bottom plate 2, partition board 3,
The thickness of extension 31 is 18mm, and the distance between bottom plate 2 to top plate 1 is 825mm.
Embodiment 3：
Such as Fig. 1 and Fig. 2, Fig. 5 and a kind of novel air rail road shown in fig. 6, on the basis of embodiment 1, top plate 1, bottom
Plate 2, partition board 3, extension 31 thickness be 20mm, the distance between bottom plate 2 to top plate 1 is 825mm.
Embodiment 4：
Such as Fig. 1 and Fig. 2, Fig. 7 and a kind of novel air rail road shown in Fig. 8, on the basis of embodiment 1, top plate 1, bottom
Plate 2, partition board 3, extension 31 thickness be 30mm, the distance between bottom plate 2 to top plate 1 is 825mm.
Embodiment 5：
Such as Fig. 1 and Fig. 2, Fig. 9 and a kind of novel air rail road shown in Fig. 10, on the basis of embodiment 1, top plate 1, bottom
Plate 2, partition board 3, extension 31 thickness be 30mm, the distance between bottom plate 2 to top plate 1 is 1000mm.
Following table is by structure static analysis, to track that length in embodiment 2 to 5 is 25m in dead weight and vehicle-mounted work
The obtained data result of finite element analysis is carried out under：
Can clearly it be found out by upper table, the overall track deflection under dead weight and vehicle loading is no more than whole span
One thousandth, embodiment 2 to 5 can meet sky iron run requirement；The wherein safety coefficient height 1.98 of embodiment 2 is
Optimal case.
In addition, determining the eigentone of track structure by simulation calculation in ANSYS Mechanical and shaking
Type can avoid the intrinsic frequency of track, will not resonate as a result, can clearly obtain in empty iron driving process.
Above-described specific implementation mode has carried out further the purpose of the present invention, technical solution and advantageous effect
It is described in detail, it should be understood that the foregoing is merely the specific implementation mode of the present invention, is not intended to limit the present invention
Protection domain, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of novel air rail road, which is characterized in that top plate (1), bottom plate (2) including the face that is mutually parallel, the top plate
(1) it is located at right over bottom plate (2), further includes the partition board (3) being fixed between top plate (1), bottom plate (2), the partition board (3) is vertical
In top plate (1), bottom plate (2), the top plate (1), bottom plate (2) are by partition board (3) left and right decile；Bottom plate (2) bottom is uniform
It is distributed several reinforcing ribs (5).
2. a kind of novel air rail road according to claim 1, which is characterized in that the end set of the top plate (1) connects
The connector (4) of fitting (4), two faces is detachably connected, and the connector (4) is for connecting adjacent two sections of novel airs
Rail road.
3. a kind of novel air rail road according to claim 1, which is characterized in that the reinforcing rib (5) is along bottom plate (2)
Length direction equidistantly distributed.
4. a kind of novel air rail road according to claim 3, which is characterized in that the partition board (3) passes through from top to bottom
Bottom plate (2), it is extension (31) that partition board (3), which passes through the part of bottom plate (2), and the reinforcing rib (5) is fixed on extension (31)
Both sides.
5. a kind of novel air rail road according to claim 4, which is characterized in that the rectangular triangle of the reinforcing rib (5)
Two right-angle sides of shape, the right angled triangle are separately fixed at bottom plate (2) bottom surface, extension (31) side；And the right angle three
Two angular acute angles are flushed with the outer rim of bottom plate (2), extension (31) respectively.
6. a kind of novel air rail road according to claim 4, which is characterized in that the extension (31) is far from bottom plate
(2) one end is the distance between to bottom plate (2), and the ratio of spacing is 1 between bottom plate (2) and top plate (1):9~1:10.
7. a kind of novel air rail road according to claim 1, which is characterized in that the top plate (1), bottom plate (2), partition board
(3) thickness is equal, and top plate (1), bottom plate (2), partition board (3) are integrally formed.
8. a kind of novel air rail road according to claim 1, which is characterized in that the top plate (1), bottom plate (2) are
The arc-shaped to arch upward upwards, top plate (1), the arc radius of bottom plate (2) are equal.
9. a kind of novel air rail road according to claim 8, which is characterized in that the top plate (1), bottom plate (2) circle
Arc radius is R meters, wherein 700≤R≤800.
10. according to the purposes in any novel air rail road in claim 1 to 9, which is characterized in that for being transported as empty iron
Capable guide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282727.1A CN108301260A (en) | 2018-04-02 | 2018-04-02 | A kind of novel air rail road and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810282727.1A CN108301260A (en) | 2018-04-02 | 2018-04-02 | A kind of novel air rail road and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108301260A true CN108301260A (en) | 2018-07-20 |
Family
ID=62848011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810282727.1A Pending CN108301260A (en) | 2018-04-02 | 2018-04-02 | A kind of novel air rail road and application thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN108301260A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0035603A1 (en) * | 1980-03-07 | 1981-09-16 | Josef Gloger | Rail with a double-T profile for suspension railways |
| CN201777248U (en) * | 2010-09-15 | 2011-03-30 | 株洲九方工模具有限责任公司 | Suspended monorail traffic system |
| CN201825040U (en) * | 2010-10-20 | 2011-05-11 | 刘建强 | Urban air track passenger train and road trestle matched therewith |
| US20140182476A1 (en) * | 2012-12-28 | 2014-07-03 | Frost Tech Llc | High capacity conveyor trolley and method |
| CN107354830A (en) * | 2017-06-20 | 2017-11-17 | 中建空列（北京）科技有限公司 | External suspension type rail beam and external suspension type sky iron traffic system |
| CN206666943U (en) * | 2017-03-24 | 2017-11-24 | 中国五冶集团有限公司 | Inverted U-shaped overhead monorail traffic track beam |
| CN206721581U (en) * | 2017-04-21 | 2017-12-08 | 中国五冶集团有限公司 | A kind of finger binding structure of suspension type rail beam |
| CN208055768U (en) * | 2018-04-02 | 2018-11-06 | 中唐空铁集团有限公司 | A kind of novel air rail road |
-
2018
- 2018-04-02 CN CN201810282727.1A patent/CN108301260A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0035603A1 (en) * | 1980-03-07 | 1981-09-16 | Josef Gloger | Rail with a double-T profile for suspension railways |
| CN201777248U (en) * | 2010-09-15 | 2011-03-30 | 株洲九方工模具有限责任公司 | Suspended monorail traffic system |
| CN201825040U (en) * | 2010-10-20 | 2011-05-11 | 刘建强 | Urban air track passenger train and road trestle matched therewith |
| US20140182476A1 (en) * | 2012-12-28 | 2014-07-03 | Frost Tech Llc | High capacity conveyor trolley and method |
| CN206666943U (en) * | 2017-03-24 | 2017-11-24 | 中国五冶集团有限公司 | Inverted U-shaped overhead monorail traffic track beam |
| CN206721581U (en) * | 2017-04-21 | 2017-12-08 | 中国五冶集团有限公司 | A kind of finger binding structure of suspension type rail beam |
| CN107354830A (en) * | 2017-06-20 | 2017-11-17 | 中建空列（北京）科技有限公司 | External suspension type rail beam and external suspension type sky iron traffic system |
| CN208055768U (en) * | 2018-04-02 | 2018-11-06 | 中唐空铁集团有限公司 | A kind of novel air rail road |
Non-Patent Citations (1)
| Title |
|---|
| 住房和城乡建设部标准定额研究所: "《起重机钢结构制造工艺（第三版）》", vol. 3, 中国铁道出版社, pages: 132 - 142 * |
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