CN205347952U - Two line track roof beams of rail formula track traffic are embraced in magnetic suspension - Google Patents
Two line track roof beams of rail formula track traffic are embraced in magnetic suspension Download PDFInfo
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- CN205347952U CN205347952U CN201521060868.7U CN201521060868U CN205347952U CN 205347952 U CN205347952 U CN 205347952U CN 201521060868 U CN201521060868 U CN 201521060868U CN 205347952 U CN205347952 U CN 205347952U
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- box beam
- horizontal gird
- embraced
- magnetic suspension
- track traffic
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Abstract
The utility model discloses a two line track roof beams of rail formula track traffic are embraced in magnetic suspension, including erectting left case roof beam and the right case roof beam on the pier, left case roof beam is the same with the structure of right case roof beam, and left case roof beam is in through a left bearing installation on the pier, right case roof beam is in through a right bearing installation on the pier, the left branch seat is the same with the structure of right branch seat, the right side of left side case roof beam with the left side of right side case roof beam through a horizontal gird fixed connection together, the horizontal gird is whole to be cylindricly and it is made by the steel pipe concrete, the horizontal gird set up in directly over the pier, and with there is the interval between the pier. The utility model discloses two left and right case roof beams pass through the connection of horizontal gird, and its the stiffness has obtained very big improvement, for during two monospars more than 3 times of rigidity about setting up alone, structural stiffness's promotion, corresponding deform when having reduced the structure atress greatly, have satisfied magnetism and have floated the strict demand of engineering to structure deformation.
Description
Technical field
This utility model belongs to track girder field, embraces rail track traffic two-wire track girder more particularly, to a kind of magnetic suspension.
Background technology
Embracing rail track traffic and mainly include magnetic levitation track traffic and cross-saddle single-track traffic, both adopts unique armful rail method of operation, and the small bore single line box beam meeting vehicle gauge is to embrace the beam type that rail track traffic is most economical.
With reference to Fig. 1, two box beams of two trajectories of tradition small bore are separate to be configured so that the lateral stiffness of two trajectories is poor；Additionally each box beam relies on two bearings to be supported respectively, bearing is arranged on bridge pier, the horizontal spacing of the two bearing is big, the transverse width causing bridge pier top cap is also bigger, which improves bridge pier top cap and the size of pier bottom structure, add bridge pier volume and be about 35%, greatly add the manufacturing cost of bridge pier, and make bridge pier also unsightly.
With reference to Fig. 2 (a), Fig. 2 (b), Chinese Patent Application No. be 201410487247.0 Chinese patent disclose the double; two case rectangle steel of a kind of straddle-type monorail-mixed combined track beam structure, including: the two line steel being parallel to each other-mixed track girder, it is connected by the crossbeam of bottom, lower flat vertical connection between two steel-mixed track girders；Wherein, described steel-mixed track girder includes: transverse section is the steel beam structure of box and concrete long cube structure that transverse section is rectangle, and described concrete long cube structure is in the top of described steel beam structure, and is connected by WELDING STUDS with described steel beam structure；It is to arrange crossbeam to increase lateral stiffness between common two line steel reinforced concrete combined track beams, but its crossbeam adopted is truss structure, although the crossbeam of this truss structure can increase lateral stiffness, but it is suitable for application in this special bridge structure of magnetic levitation track girder, except the factor that it is relatively costly, the impact that steel truss structure is easily expanded with heat and contract with cold, the flatness of magnetic suspension rail is controlled there is large effect, thus it is unfavorable for the smooth-ride of magnetic suspension train, simultaneously, complicated truss structure aesthetic property is poor, do not meet the requirement of Modern City Traffic development.
Utility model content
For disadvantages described above or the Improvement requirement of prior art, this utility model provides a kind of magnetic suspension and embraces rail track traffic two-wire track girder, and its lateral stiffness is high, and can effectively save manufacturing cost.
For achieving the above object, according to this utility model, provide a kind of magnetic suspension and embrace rail track traffic two-wire track girder, it is characterized in that, including the left box beam being erected on bridge pier and right box beam, described left box beam is identical with the structure of right box beam and makes by armored concrete, and described left box beam is arranged on described bridge pier by a left support abutment, described right box beam is arranged on described bridge pier by a right support abutment, and described left support abutment is identical with the structure of right support abutment；
The right side of described left box beam and the horizontal gird that passes on left of described right box beam are fixed together；
Described horizontal gird includes left crossbeam portion, pressure transducer and right crossbeam portion, described left crossbeam portion and right crossbeam portion are formed by concrete filled steel tube, described pressure transducer between described left crossbeam portion and right crossbeam portion and described left crossbeam portion and right crossbeam portion linked together by described pressure transducer, described pressure transducer is used for detecting described left crossbeam portion and described right crossbeam portion pressure experienced；
Described horizontal gird is arranged at the surface of described bridge pier, and and there is spacing between described bridge pier.
Preferably, described left box beam and described right box beam are hollow structure.
Preferably, described horizontal gird, left box beam are concordant with the bottom face of right box beam.
Preferably, the height of described horizontal gird is the 2/5～4/5 of described left box beam height.
Preferably, the height of described bearing is the 1/11～1/9 of described horizontal gird height.
Preferably, the spacing between described crossbeam and described bridge pier is 0.3m～0.5m.
Preferably, in described horizontal gird, steel pipe and concrete weight ratio are 0.2:1～0.5:1.
Preferably, the tensile strength of described horizontal gird is more than 10MPa.
Preferably, the comprcssive strength of described horizontal gird is more than 15MPa.
Preferably, the thickness of described horizontal gird is the 1/10～1/5 of its length.
In general, by the contemplated above technical scheme of this utility model compared with prior art, it is possible to obtain following beneficial effect:
1) this utility model is not arrange crossbeam simply to carry out simple superposition with reducing bearing, but the feature according to magnetic-levitation traffic, select to build concrete filled steel tube at pier location place and form crossbeam, ensure that the attractive in appearance of profile, when variations in temperature, the impact of track form is less.The connection by horizontal gird of left and right two box beams, its integral rigidity is greatly improved, during for being separately provided left and right two panels single-beam more than 3 times of rigidity.
The lifting of the rigidity of structure, substantially reduces deformation during structure stress accordingly, meets the strict demand for structural deformation of the magnetic floating engineering.
2) this utility model is provided with horizontal gird due to position corresponding with bearing in box beam, corresponding four bearings supporting box beam can be reduced to two bearings, bridge pier top cap lateral dimension can reduce 35%, and bridge pier overall dimensions reduces saving bottom pile foundation stake simultaneously and is about 25%.Therefore, by optimizing the bearing plan of establishment, it is possible to make the manufacturing cost of bearing reduce 50%, decrease bridge pier cost 35%, decrease bottom pile foundation cost 25%.
Accompanying drawing explanation
Fig. 1 is the structural representation that in prior art, two single line box beams are independently arranged；
Fig. 2 (a) and Fig. 2 (b) is the schematic diagram using truss to connect in prior art；
Fig. 3 is structural representation of the present utility model.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, be not used to limit this utility model.As long as just can be mutually combined additionally, technical characteristic involved in each embodiment of this utility model disclosed below does not constitute conflict each other.
With reference to Fig. 3, rail track traffic two-wire track girder is embraced in a kind of magnetic suspension, including the left box beam 2 being erected on bridge pier 1 and right box beam 3, described left box beam 2 is identical with the structure of right box beam 3 and makes by armored concrete, and described left box beam 2 is arranged on described bridge pier 1 by a left support abutment 4, described right box beam 3 is arranged on described bridge pier 1 by a right support abutment 5, and described left support abutment 4 is identical with the structure of right support abutment 5；
The right side of described left box beam and the horizontal gird that passes on left of described right box beam are fixed together；
Described horizontal gird 6 includes left crossbeam portion 61, pressure transducer 62 and right crossbeam portion 63, described left crossbeam portion 61 and right crossbeam portion 63 are formed by concrete filled steel tube, described pressure transducer 62 between described left crossbeam portion 61 and right crossbeam portion 63 and described left crossbeam portion 61 and right crossbeam portion 63 linked together by described pressure transducer 62, described pressure transducer 62 is used for detecting described left crossbeam portion 61 and 63 pressure experienced of described right crossbeam；
Horizontal gird 6 does not adopt cast-in-place concrete, but adopts the mode of fill concrete in steel pipe, and in steel pipe, the connected mode of fill concrete structure and both sides box beam can adopt the connected mode of flange and bolt, it would however also be possible to employ the mode of welding.Its advantage is: concrete itself has good resistance to compression effect, when Concrete Filled is in steel pipe, can produce a fastening effect, and anti-pressure ability is greatly enhanced.Meanwhile, steel pipe can bear the effect of certain tension.In magnetic suspension rail building course, two box beams are prefabricated in advance, then pass through Bridge Erector and install fixing.Owing between two box beam be arrangeding in parallel, space is extremely limited, adopt this programme, can greatly facilitate installation, save material simultaneously, take up room little, be suitably applied magnetic suspension rail environment.
Described horizontal gird 6 is arranged at the surface of described bridge pier 1, and and there is spacing between described bridge pier 1.
This utility model not arranges crossbeam simply and carries out simple superposition with reducing bearing, but the feature according to magnetic-levitation traffic, select to build concrete filled steel tube in bridge pier 1 position and form crossbeam, it is ensured that profile attractive in appearance, when variations in temperature, the impact of track form is less.Left and right two box beams are by the connection of horizontal gird 6, and its integral rigidity is greatly improved, during for being separately provided left and right two panels single-beam more than 3 times of rigidity.The lifting of the rigidity of structure, substantially reduces deformation during structure stress accordingly, meets the strict demand for structural deformation of the magnetic floating engineering.
This utility model is provided with horizontal gird 6 due to position corresponding with bearing in box beam, corresponding four bearings supporting box beam can be reduced to two bearings, bridge pier 1 top cap lateral dimension can reduce 35%, and bridge pier 1 overall dimensions reduces saving bottom pile foundation stake simultaneously and is about 25%.Therefore, by optimizing the bearing plan of establishment, it is possible to make the manufacturing cost of bearing reduce 50%, decrease bridge pier 1 cost 35%, decrease bottom pile foundation cost 25%.
Further, described left box beam 2 and described right box beam 3 are hollow structure, and the dead load of box beam is greatly reduced, and make box beam making, erection all more convenient, and box beam holistic cost is saved more.
Further, described horizontal gird 6, left box beam 2 are concordant with the bottom face of right box beam 3, and left box beam 2 and right box beam 3 are linked together by horizontal gird 6, and integral rigidity improves more than 3 times.Crossbeam is concordant with box beam bottom, left and right, and its plastic simplicity is attractive in appearance, can reduce the manufacture difficulty of box girder formwork, saves cost of manufacture.Meanwhile, crossbeam is concordant with box beam bottom, left and right, it is to avoid the sudden change of structural stress that the abrupt change of cross-section brings, it is to avoid box beam bigger concentrated stress occurs with crossbeam connecting portion, makes structure stress uniform, and stress performance is further enhanced.
Further, the height of described horizontal gird 6 is the 2/5～4/5 of described left box beam 2 height, the height of described bearing is the 1/10 of described horizontal gird 6 height, spacing between described crossbeam and described bridge pier 1 is 0.3m～0.5m, in described horizontal gird 6, steel pipe and concrete weight ratio are 0.2:1～0.5:1, the thickness of described horizontal gird 6 is the 1/10～1/5 of its length, its structural volume is comparatively only small relative to left and right two panels box beam, especially beam thickness is relatively thin, conduct oneself with dignity less, consequently reduce the dead load that left and right box beam is born, also reduce bottom bridge pier simultaneously, the load that pile foundation is born.In addition the profile that crossbeam is slim and graceful, adds daylighting effect under the bridge between two panels box beam, also enhances landscape effect.
Further, the tensile strength of described horizontal gird 6 is more than 10Mpa, and the comprcssive strength of described horizontal gird 6 is more than 15Mpa, in order to adapt to the requirement of strength of track traffic.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all any amendment, equivalent replacement and improvement etc. made within spirit of the present utility model and principle, should be included within protection domain of the present utility model.
Claims (10)
1. rail track traffic two-wire track girder is embraced in a magnetic suspension, it is characterized in that, including the left box beam being erected on bridge pier and right box beam, described left box beam is identical with the structure of right box beam and makes by armored concrete, and described left box beam is arranged on described bridge pier by a left support abutment, described right box beam is arranged on described bridge pier by a right support abutment, and described left support abutment is identical with the structure of right support abutment；
The right side of described left box beam and the horizontal gird that passes on left of described right box beam are fixed together；
Described horizontal gird includes left crossbeam portion, pressure transducer and right crossbeam portion, described left crossbeam portion and right crossbeam portion are formed by concrete filled steel tube, described pressure transducer between described left crossbeam portion and right crossbeam portion and described left crossbeam portion and right crossbeam portion linked together by described pressure transducer, described pressure transducer is used for detecting described left crossbeam portion and described right crossbeam portion pressure experienced；
Described horizontal gird is arranged at the surface of described bridge pier, and and there is spacing between described bridge pier.
2. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that described left box beam and described right box beam are hollow structure.
3. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that described horizontal gird, left box beam are concordant with the bottom face of right box beam.
4. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the height of described horizontal gird is the 2/5～4/5 of described left box beam height.
5. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the height of described bearing is the 1/11～1/9 of described horizontal gird height.
6. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the spacing between described crossbeam and described bridge pier is 0.3m～0.5m.
7. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that in described horizontal gird, steel pipe and concrete weight ratio are 0.2:1～0.5:1.
8. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the tensile strength of described horizontal gird is more than 10MPa.
9. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the comprcssive strength of described horizontal gird is more than 15MPa.
10. rail track traffic two-wire track girder is embraced in a kind of magnetic suspension according to claim 1, it is characterised in that the thickness of described horizontal gird is the 1/10～1/5 of its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060868.7U CN205347952U (en) | 2015-12-17 | 2015-12-17 | Two line track roof beams of rail formula track traffic are embraced in magnetic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521060868.7U CN205347952U (en) | 2015-12-17 | 2015-12-17 | Two line track roof beams of rail formula track traffic are embraced in magnetic suspension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205347952U true CN205347952U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521060868.7U Active CN205347952U (en) | 2015-12-17 | 2015-12-17 | Two line track roof beams of rail formula track traffic are embraced in magnetic suspension |
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| Country | Link |
|---|---|
| CN (1) | CN205347952U (en) |
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2015
- 2015-12-17 CN CN201521060868.7U patent/CN205347952U/en active Active
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