CN105544371A - Magnetic levitation encircled track traffic double-line track beam - Google Patents
Magnetic levitation encircled track traffic double-line track beam Download PDFInfo
- Publication number
- CN105544371A CN105544371A CN201510952008.2A CN201510952008A CN105544371A CN 105544371 A CN105544371 A CN 105544371A CN 201510952008 A CN201510952008 A CN 201510952008A CN 105544371 A CN105544371 A CN 105544371A
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- CN
- China
- Prior art keywords
- bridge pier
- case beam
- horizontal gird
- track traffic
- embraced
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
Abstract
The invention discloses a magnetic levitation encircled track traffic double-line track beam, comprising a left box beam and a right box beam which are erected on a bridge pier, wherein the left box beam and the right box beam have the same structure, the left box beam is installed on the bridge pier through a left support, the right box beam is installed on the bridge pier through a right support, and the left support and the right support have the same structure; the right side of the left box beam is fixedly connected with the left side of the right box beam through a horizontal cross beam, and the horizontal cross beam is integrally cylindrical and is made of steel pipe concrete; and the horizontal cross beam is arranged right above the bridge pier, and an interval exists between the horizontal cross beam and the bridge pier. By connecting the left and right box beams through the horizontal cross beam, the integral rigidity of the track beam disclosed by the invention is greatly improved and is three times more than the rigidity when a left beam and a right beam are independently arranged; and by improving the structural rigidity, the deformation during structure stress is greatly reduced correspondingly, and strict requirements of magnetic levitation projects on structure deformation are met.
Description
Technical field
The invention belongs to rail beam field, more specifically, relate to a kind of armful of rail track traffic two-wire rail beam.
Background technology
Embrace rail track traffic and mainly comprise magnetic levitation track traffic and cross-saddle single-track traffic, the two all adopts unique armful rail method of operation, and the small bore single line case beam meeting vehicle gauge embraces the most economical beam type of rail track traffic.
With reference to Fig. 1, two case beams of two trajectories of traditional small bore are separate to be arranged, and makes the lateral stiffness of two trajectories poor; Each case beam relies on two bearings to support respectively in addition, bearing settlement is on bridge pier, the horizontal spacing of these two bearings is large, cause the transverse width of top of bridge pier cap also larger, which improves the size of top of bridge pier cap and 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 two case rectangle steel of a kind of straddle-type monorail-mixed combined track beam structure, comprise: the two line steel be parallel to each other-mixed track girder, be connected by the crossbeam of bottom, lower flat vertical connection between two steel-mixed track girders, wherein, described steel-mixed track girder comprises: the concrete long cube structure of to be the steel beam structure of box and cross section be in cross section 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 arranges crossbeam to increase lateral stiffness between common two line steel reinforced concrete combined track beams, but its crossbeam adopted is trussed construction, although the crossbeam of this trussed construction can increase lateral stiffness, but it is not suitable for being applied in this special bridge construction of magnetic levitation track girder, except the factor that its cost is higher, the impact that steel truss structure is easily expanded with heat and contract with cold, the planeness of magnetic suspension rail is controlled to there is larger impact, so just be unfavorable for the smooth-ride of magnetic suspension train, simultaneously, complicated trussed construction aesthetic property is poor, do not meet the requirement of Modern City Traffic development.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of armful of rail track traffic two-wire rail beam, its lateral stiffness is high, and effectively can save manufacturing cost.
For achieving the above object, according to the present invention, provide a kind of magnetic suspension and embrace rail track traffic two-wire rail beam, it is characterized in that, comprise and be erected at left case beam on bridge pier and right case beam, described left case beam is identical with the structure of right case beam, and described left case beam is arranged on described bridge pier by a left support abutment, described right case 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 left side of described left case beam is provided with the left wing plate stretched out obliquely upward, and the right side of described right case beam is provided with the right wing plate stretched out obliquely upward, and described left wing plate and right wing plate symmetrical;
The right side of described left case beam and the horizontal gird that passes on left of described right case beam are fixed together, and in addition, described horizontal gird entirety is cylindric and it is made up of concrete filled steel tube;
Described horizontal gird is arranged at directly over described bridge pier, and and there is spacing between described bridge pier.
Preferably, described left case beam and described right case beam are hollow structure.
Preferably, described horizontal gird, left case beam are concordant with the bottom face of right case beam.
Preferably, the height of described horizontal gird is 2/5 ~ 4/5 of described left case depth of beam.
Preferably, the height of described bearing is 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 greater than 10MPa.
Preferably, the compressive strength of described horizontal gird is greater than 15MPa.
Preferably, the thickness of described horizontal gird is 1/10 ~ 1/5 of its length.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial effect:
1) the present invention not arrange simply crossbeam with minimizing bearing simply superpose, but according to the feature of 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, less on the impact of track form when variations in temperature.Left and right two case beams are by the connection of horizontal gird, and its integral rigidity is greatly improved, more than 3 times of rigidity during for arranging separately left and right two panels single-beam.
The lifting of the rigidity of structure, deformation when substantially reducing structure stress accordingly, meets magnetic and floats the strict demand of engineering for structural deformation.
2) the present invention is provided with horizontal gird due to position corresponding with bearing on case beam, four bearings of corresponding support box beam can be reduced to two bearings, top of bridge pier cap lateral dimension can reduce 35%, and bridge abutment integral size reduces saving bottom pile foundation stake simultaneously and is about 25%.Therefore, by optimizing bearing settlement scheme, the manufacturing cost of bearing can be made to 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 case beams are independently arranged;
Fig. 2 (a) and Fig. 2 (b) are the schematic diagrames using truss to be connected in prior art;
Fig. 3 is the schematic diagram that the case beam with wing plate in prior art is arranged on bridge pier;
Fig. 4 is structural representation of the present invention.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.In addition, if below in described each embodiment of the present invention involved technical characteristic do not form conflict each other and just can mutually combine.
With reference to Fig. 4, rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension, comprise and be erected at left case beam 2 on bridge pier 1 and right case beam 3, described left case beam 2 is identical with the structure of right case beam 3, and described left case beam 2 is arranged on described bridge pier 1 by a left support abutment 4, described right case 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 left side of described left case beam 2 is provided with the left wing plate 7 stretched out obliquely upward, and the right side of described right case beam 3 is provided with the right wing plate 8 stretched out obliquely upward, and described left wing plate 7 and right wing plate 8 symmetrical;
The right side of described left case beam 2 and the horizontal gird 6 that passes on left of described right case beam 3 are fixed together, and in addition, described horizontal gird 6 entirety is cylindric and it is made up of concrete filled steel tube; 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 case beam can adopt the connected mode of flange and bolt, also can adopt the mode of welding.Its advantage is: concrete itself has good resistance to compression effect, and when Concrete Filled is in steel pipe, can produce a fastening effect, anti-pressure ability strengthens greatly.Meanwhile, steel pipe can bear the effect of certain tension.In magnetic suspension rail building course, article two, case beam is prefabricated in advance, then installed fixing by Bridge Erector. because between two box beam be arranged in parallel, space is very limited, adopt this programme, greatly can facilitate installation, save material simultaneously, take up room little, be applicable to being applied to magnetic suspension rail environment.
Described horizontal gird 6 is arranged at directly over described bridge pier 1, and and there is spacing between described bridge pier 1.
The present invention not arranges crossbeam simply and simply superposes with minimizing bearing, but according to the feature of magnetic-levitation traffic, select to build concrete filled steel tube in bridge pier 1 position and form crossbeam, ensure that the attractive in appearance of profile, less on the impact of track form when variations in temperature.Left and right two case beams are by the connection of horizontal gird 6, and its integral rigidity is greatly improved, more than 3 times of rigidity during for arranging separately left and right two panels single-beam.The lifting of the rigidity of structure, deformation when substantially reducing structure stress accordingly, meets magnetic and floats the strict demand of engineering for structural deformation.
The present invention is provided with horizontal gird 6 due to position corresponding with bearing on case beam, four bearings of corresponding support box beam can be reduced to two bearings, bridge pier 1 pushes up 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 bearing settlement scheme, the manufacturing cost of bearing can be made to reduce 50%, decrease bridge pier 1 cost 35%, decrease bottom pile foundation cost 25%.
Further, described left case beam 2 and described right case beam 3 are hollow structure, and the dead load of case beam greatly reduces, make case beam make, erection all more convenient, box girder integral cost savings are more.
Further, described horizontal gird 6, left case beam 2 are concordant with the bottom face of right case beam 3, and left case beam 2 and right case beam 3 are linked together by horizontal gird 6, and integral rigidity improves more than 3 times.Crossbeam is concordant with case 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 case beam bottom, left and right, and the structural stress sudden change avoiding the abrupt change of cross-section to bring, avoids case beam and larger concentrated stress appears in crossbeam connecting portion, and make structure stress even, stress performance is further enhanced.
Further, the height of described horizontal gird 6 is 2/5 ~ 4/5 of described left case beam 2 height, the height of described bearing is 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 1/10 ~ 1/5 of its length, its structural volume is comparatively very little relative to left and right two panels case beam, especially beam thickness is thinner, conduct oneself with dignity less, consequently reduce the dead load that left and right case joist support is subject to, 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 case beam, also enhances landscape effect.
Further, the tensile strength of described horizontal gird 6 is greater than 10Mpa, and the compressive strength of described horizontal gird 6 is greater than 15Mpa, 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 invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. rail track traffic two-wire rail beam is embraced in a magnetic suspension, it is characterized in that, comprise and be erected at left case beam on bridge pier and right case beam, described left case beam is identical with the structure of right case beam, and described left case beam is arranged on described bridge pier by a left support abutment, described right case 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 left side of described left case beam is provided with the left wing plate stretched out obliquely upward, and the right side of described right case beam is provided with the right wing plate stretched out obliquely upward, and described left wing plate and right wing plate symmetrical;
The right side of described left case beam and the horizontal gird that passes on left of described right case beam are fixed together, and in addition, described horizontal gird entirety is cylindric and it is made up of concrete filled steel tube;
Described horizontal gird is arranged at directly over described bridge pier, and and there is spacing between described bridge pier.
2. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, it is characterized in that, described left case beam and described right case beam are hollow structure.
3. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, it is characterized in that, described horizontal gird, left case beam are concordant with the bottom face of right case beam.
4. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, it is characterized in that, the height of described horizontal gird is 2/5 ~ 4/5 of described left case depth of beam.
5. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, it is characterized in that, the height of described bearing is 1/11 ~ 1/9 of described horizontal gird height.
6. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, and it is characterized in that, the spacing between described crossbeam and described bridge pier is 0.3m ~ 0.5m.
7. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, and it is characterized 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 rail beam is embraced in a kind of magnetic suspension according to claim 1, and it is characterized in that, the tensile strength of described horizontal gird is greater than 10MPa.
9. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, and it is characterized in that, the compressive strength of described horizontal gird is greater than 15MPa.
10. rail track traffic two-wire rail beam is embraced in a kind of magnetic suspension according to claim 1, and it is characterized in that, the thickness of described horizontal gird is 1/10 ~ 1/5 of its length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952008.2A CN105544371B (en) | 2015-12-17 | 2015-12-17 | Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510952008.2A CN105544371B (en) | 2015-12-17 | 2015-12-17 | Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105544371A true CN105544371A (en) | 2016-05-04 |
| CN105544371B CN105544371B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510952008.2A Active CN105544371B (en) | 2015-12-17 | 2015-12-17 | Rail track traffic two-wire track girder is embraced in a kind of magnetic suspension |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101768A1 (en) * | 2015-12-17 | 2017-06-22 | 中铁第四勘察设计院集团有限公司 | Double-track beam for rail-wrap-type rail transit |
| WO2017101767A1 (en) * | 2015-12-17 | 2017-06-22 | 中铁第四勘察设计院集团有限公司 | Double-track beam for magnetic-levitation rail-wrap-type rail transit |
| CN113152168A (en) * | 2020-01-07 | 2021-07-23 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | U-shaped double-line vacuum pipeline beam |
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| JP2005139613A (en) * | 2003-11-04 | 2005-06-02 | Nippon Steel Corp | Continuous girder bridge supported by jacket pier |
| JP2005171706A (en) * | 2003-12-15 | 2005-06-30 | Nippon Sharyo Seizo Kaisha Ltd | Cross beam extension structure of existing bridge pier |
| KR100929557B1 (en) * | 2009-05-29 | 2009-12-03 | 태우디엔씨 주식회사 | Beam constructing structure for charge type steel box and i-beam girder of bridge |
| CN203654157U (en) * | 2013-12-05 | 2014-06-18 | 深圳市市政设计研究院有限公司 | Track beam structure supported by double-layer rods |
| CN104594173A (en) * | 2014-11-28 | 2015-05-06 | 中铁第四勘察设计院集团有限公司 | Rail holding type electromagnetic suspension track traffic box girder |
| CN104912004A (en) * | 2015-06-25 | 2015-09-16 | 中铁第四勘察设计院集团有限公司 | Hold rail-type track transportation bridge evacuation maintenance platform |
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2015
- 2015-12-17 CN CN201510952008.2A patent/CN105544371B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005139613A (en) * | 2003-11-04 | 2005-06-02 | Nippon Steel Corp | Continuous girder bridge supported by jacket pier |
| JP2005171706A (en) * | 2003-12-15 | 2005-06-30 | Nippon Sharyo Seizo Kaisha Ltd | Cross beam extension structure of existing bridge pier |
| KR100929557B1 (en) * | 2009-05-29 | 2009-12-03 | 태우디엔씨 주식회사 | Beam constructing structure for charge type steel box and i-beam girder of bridge |
| CN203654157U (en) * | 2013-12-05 | 2014-06-18 | 深圳市市政设计研究院有限公司 | Track beam structure supported by double-layer rods |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017101768A1 (en) * | 2015-12-17 | 2017-06-22 | 中铁第四勘察设计院集团有限公司 | Double-track beam for rail-wrap-type rail transit |
| WO2017101767A1 (en) * | 2015-12-17 | 2017-06-22 | 中铁第四勘察设计院集团有限公司 | Double-track beam for magnetic-levitation rail-wrap-type rail transit |
| CN113152168A (en) * | 2020-01-07 | 2021-07-23 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | U-shaped double-line vacuum pipeline beam |
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| Publication number | Publication date |
|---|---|
| CN105544371B (en) | 2017-08-01 |
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