CN207828711U - A kind of straddle-type monorail composite bridge - Google Patents
A kind of straddle-type monorail composite bridge Download PDFInfo
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- CN207828711U CN207828711U CN201820018269.6U CN201820018269U CN207828711U CN 207828711 U CN207828711 U CN 207828711U CN 201820018269 U CN201820018269 U CN 201820018269U CN 207828711 U CN207828711 U CN 207828711U
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- joist
- straddle
- type monorail
- track
- cast
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Abstract
The utility model discloses a kind of straddle-type monorail composite bridges, which is characterized in that including：Joist；At least one cast-in-place concrete track main body is arranged along the joist extending direction on the joist；And steel track beam, along the joist extending direction continuous laying in the cast-in-place concrete track main body.On the relatively conventional beam of big across the straddle-type monorail composite bridge structure of the utility model for joist structure, cancel mode tensile supporting seat setting, reduce track height, to reduce whole line elevation, saves project cost, there is wide application space.
Description
Technical field
The utility model is related to technical field of bridge engineering more particularly to a kind of straddle-type monorail composite bridges and its construction party
Method.
Background technology
The structure type of straddle type rail transit joist on generally use beam when having compared with Great span demand, as shown in Figure 1,
Existing monorail combination bridge structure includes：Track girder 1 (generally in 25m or so, prestressed reinforced concrete construction), is held mode tensile supporting seat 2
Rail platform 3 and joist 4.3 height of track is 90cm or so, and 2 height of mode tensile supporting seat is 50cm or so.
But for above structure due to being provided with mode tensile supporting seat 2 between track girder 1 and joist 4, track girder 1 is not involved in support
4 overall structure stress of beam, the load action being subjected only on track girder 1.Since track girder 1 bears lateral train rocking force, wind-force
The effects that, the mode tensile supporting seat 2 below beam-ends must be able to bear the horizontal force of across a range inner orbit beam, while track
3 are also required to certain altitude to bear power of the pulling force bearing to joist structure, therefore when across barriers such as roads, it has to set
It sets vertical break of higher circuit and carrys out leaping over obstacles, cause all fronts project cost higher.
Utility model content
The utility model is directed to the drawbacks described above of the prior art, provides a kind of straddle-type monorail composite bridge, can reduce and hold
Rail platform height, and then save project cost.
Technical solution adopted by the utility model to solve its technical problems is：
A kind of straddle-type monorail composite bridge is provided comprising：Joist；At least one cast-in-place concrete track main body,
It is arranged on the joist along the joist extending direction；And steel track beam, along the joist extending direction continuous laying
On in the cast-in-place concrete track main body.
Preferably, the joist is concrete joist.
Preferably, each long 2-20m of cast-in-place concrete track main body.
Preferably, breaking joint is formed between adjacent two cast-in-place concrete track main body, and the breaking joint width is 0.02-
0.2m。
The steel track beam includes steel track beam bottom plate.
The advantageous effect of technical solutions of the utility model is：
On the relatively conventional beam of big across the straddle-type monorail composite bridge structure of the utility model for joist structure, cancel anti-
Bearing setting is drawn, track height is reduced, to reduce whole line elevation, saves project cost, has wide application empty
Between.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is existing monorail combination bridge structural schematic diagram；
Fig. 2 is the cross-section diagram of the straddle-type monorail composite bridge of the utility model embodiment one；
Fig. 3 is the elevation of the straddle-type monorail composite bridge of the utility model embodiment one.
Specific implementation mode
In order to make the purpose of this utility model, technical solution and advantage be more clearly understood, below in conjunction with attached drawing and reality
Example is applied, the present invention will be further described in detail.It should be understood that tool described herein
Body embodiment is only used for explaining the utility model, is not used to limit the utility model.
Embodiment one：
As Figure 2-3, the straddle-type monorail composite bridge of the utility model includes：Joist 30；At least one cast-in-place coagulation
Native track main body 20, along 30 extending direction of the joist (i.e. arrow X directions in Fig. 3, at the same be also Fig. 2 in hang down
Directly in the direction of paper) it is arranged on the joist 30；And the steel track beam 10 including steel track beam bottom plate 50, the rail
Road beam 10 is along 30 extending direction continuous laying of the joist in the cast-in-place concrete track main body 20；Preferably, described
20 height of cast-in-place concrete track main body is 35cm.
In the present embodiment, the joist 30 is concrete joist comprising continuous beam, rigid structure beam, cable-stayed bridge, the bridges such as arch bridge
Formula structure；10 height of the steel track beam is 150cm.
In addition, the long 2-20m (preferably 4-5m) of each cast-in-place concrete track main body 20, specific length can
Depending on line length.Further, breaking joint 40 is formed between adjacent cast-in-place concrete track main body 20, and described disconnected
It is 0.02-0.2m (preferably 0.1m) to stitch 40 width.Due to being provided with breaking joint 40 between cast-in-place concrete track main body 20, because
This itself so be not involved in overall structure stress, while breaking joint 40 can be used as when setting up steel track beam 10, adjust the branch of linear absolute altitude
A use is held, the later stage is alternatively arranged as transverse drainage channel.
Setting of the above structure due to eliminating mode tensile supporting seat in the prior art so that steel track beam 10 is complete with joist 30
In conjunction with former beam upper beam freely supported structure horizontal force is all acted on the concentrated force of beam-ends with this by participation overall structure stress
It is converted into the active force to the unit length along longitudinal direction of cast-in-place concrete track main body 20, thus reduces cast-in-place concrete track
The stress of main body 20.Meanwhile the height of the cast-in-place concrete track main body 20 is only 35cm, in terms of existing technologies
(in Fig. 13 height of track be 90cm, 2 height of mode tensile supporting seat be 50cm, the height of the two and be 140cm), can be significantly
Track height is reduced, the height of the cast-in-place concrete track main body 20 in the utility model is only track in the prior art
The 38% of 3 height, and be only the 25% of 2 height sum of track 3 and mode tensile supporting seat in the prior art, it can be in not shadow as a result,
Project cost is greatly reduced under the premise of ringing operation function.
Embodiment two：
The present embodiment additionally provides a kind of construction method of above-mentioned straddle-type monorail composite bridge comprising following steps：
S1, the construction for completing the joist；
S2, the lifting steel track beam are in place；
S3, temporary support structures are set at the breaking joint, and it is linear to adjust the steel track beam；
And it S4, pours to form the concrete track main body.
It should be noted that the technical characteristic in above-described embodiment one, two can carry out arbitrary combination, the technology being composed
Scheme belongs to the scope of protection of the utility model.
In conclusion joist structure on the relatively conventional beam of big across the straddle-type monorail composite bridge structure of the utility model,
Cancel mode tensile supporting seat setting, track height will be reduced, to reduce whole line elevation, saves project cost, have wide
Application space.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of straddle-type monorail composite bridge, which is characterized in that including：
Joist；
At least one cast-in-place concrete track main body is arranged along the joist extending direction on the joist；
And steel track beam, along the joist extending direction continuous laying in the cast-in-place concrete track main body.
2. straddle-type monorail composite bridge according to claim 1, which is characterized in that the joist is concrete joist.
3. straddle-type monorail composite bridge according to claim 1, which is characterized in that each cast-in-place concrete track
The long 2-20m of main body.
4. straddle-type monorail composite bridge according to claim 1, which is characterized in that adjacent two cast-in-place concrete track master
Breaking joint is formed between body, and the breaking joint width is 0.02-0.2m.
5. straddle-type monorail composite bridge according to claim 4, which is characterized in that the steel track beam includes steel track beam
Bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018269.6U CN207828711U (en) | 2018-01-05 | 2018-01-05 | A kind of straddle-type monorail composite bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018269.6U CN207828711U (en) | 2018-01-05 | 2018-01-05 | A kind of straddle-type monorail composite bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207828711U true CN207828711U (en) | 2018-09-07 |
Family
ID=63392004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820018269.6U Active CN207828711U (en) | 2018-01-05 | 2018-01-05 | A kind of straddle-type monorail composite bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207828711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149530A (en) * | 2018-01-05 | 2018-06-12 | 中铁工程设计咨询集团有限公司 | A kind of straddle-type monorail composite bridge and its construction method |
| CN109403203A (en) * | 2018-11-30 | 2019-03-01 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev traffic two-wire integrated box girder |
-
2018
- 2018-01-05 CN CN201820018269.6U patent/CN207828711U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108149530A (en) * | 2018-01-05 | 2018-06-12 | 中铁工程设计咨询集团有限公司 | A kind of straddle-type monorail composite bridge and its construction method |
| CN109403203A (en) * | 2018-11-30 | 2019-03-01 | 中铁磁浮交通投资建设有限公司 | A kind of medium-and low-speed maglev traffic two-wire integrated box girder |
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