CN103898833A - Long-span ballastless track bridge beam end structure - Google Patents
Long-span ballastless track bridge beam end structure Download PDFInfo
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- CN103898833A CN103898833A CN201210572474.4A CN201210572474A CN103898833A CN 103898833 A CN103898833 A CN 103898833A CN 201210572474 A CN201210572474 A CN 201210572474A CN 103898833 A CN103898833 A CN 103898833A
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Abstract
The invention relates to a railway track structure system, in particular to a long-span ballastless track bridge beam end structure which comprises a transition plate, a beam end track lifting device and a telescopic regulator. The transition plate is located above a beam joint, the lower surfaces of two ends of the transition plate are connected with the upper surfaces of ends of a beam body through supports, the transition plate and a roadbed slab on one side of the beam joint are connected through the track lifting device, and the telescopic regulator used for balancing track longitudinal stress is located on a long-span bridge beam end or a steel track of an adjacent simply-supported beam. The structure is simple in structure, convenient to install and capable of well adapting to large telescopic displacement of a long-span ballastless track concrete bridge beam end and a steel beam end, reduces influences of beam end corners on the ballastless track structure, achieves a track structure cross large beam joint structure and can guarantee stable running of a train.
Description
Technical field
The present invention relates to railway track structure system, be specifically related to a kind of large span ballastless track bridge beam-ends structure.
Background technology
Longspan Bridge exists and has larger telescopic displacement and beam-ends corner under the function influences such as train load, temperature action, shrinkage and creep.For reducing telescopic displacement, the impact of beam-ends corner on track structure, make track structure cross over crossbeam seam, ensure that train smooth passes through, at present both at home and abroad Longspan Bridge mainly adopts beam-ends that rebound is set to reduce the impact of bridge corner on track, adopt beam-ends to lift rail device and adapt to bridge beam end telescopic displacement.But there are the following problems for said structure:
(1) large-span concrete bridge, girder steel bridge telescopic displacement in the time of variations in temperature is larger, rebound is subject to the impact of bearing material property etc., adaptable bridge dilatation is limited, conventionally be no more than ± 40mm of rebound freely movable bearing Admissible displacement, therefore rebound cannot adapt to larger bridge dilatation.
(2) non-fragment orbit and bridge are for being rigidly connected, and the micro-strain of bridge all produces larger impact to ballastless track structure.Therefore,, on large span ballastless track bridge, beam-ends is lifted rail device cannot solve bridge beam end corner to the stressed problem such as larger of non-fragment orbit concrete structure impact, fastener.
Summary of the invention
Object of the present invention is exactly for above-mentioned defect, and a kind of large span ballastless track bridge beam-ends structure that adapts to the railways such as high-speed railway, inter-city rail transit and urban track traffic is provided.
The technical solution used in the present invention is: a kind of large span ballastless track bridge beam-ends structure, comprise that rebound, beam-ends lift rail device and expansion and cotraction regulator, described rebound is positioned at the beam side of sewing on, rebound two ends soffit is connected with Longspan Bridge and simply supported beam upper surface by bearing respectively, between rebound and beam Feng Yice road bed board, be connected by lifting rail device, be positioned at the rail on Longspan Bridge beam-ends or adjacent simply supported beam for the expansion and cotraction regulator of equilibrium orbit longitudinal stress.
Preferably, described bearing comprises two fixed bearings and two freely movable bearings, two fixed bearings are positioned at the Longspan Bridge upper surface of beam seam one end, and with to be arranged on Longspan Bridge corresponding in the vertical direction with the steel bridge bearing between bridge pier, rebound one end is supported on to bridge pier end, two freely movable bearings are arranged on the simply supported beam upper surface of the beam seam other end, laterally fix, be longitudinally freely connected between freely movable bearing and rebound.
Preferably, described in, lift that rail device comprises brace summer, slip sleeper and the sleeper both ends that can make to slide are supported on the linkage in the gap between rebound and road bed board.
Preferably, between described two ends, gap between each one steel rail both sides, rebound and road bed board, be at least provided with a brace summer parallel with rail, brace summer is connected to the two ends, gap between rebound and road bed board, between gap between described rebound and road bed board, be provided with slip sleeper, slip sleeper two ends are connected with brace summer respectively, and the gap place of rail between rebound and road bed board is supported on slip sleeper.
Syndeton of the present invention arranges rebound supporting rail at beam seam place, and rebound can be realized non-fragment orbit and cross over crossbeam seam, and reduces beam-ends corner to track structure influence; Between rebound and road bed board, arrange and lift rail device and is connected, the uniformity of sleeper pitch when beam-ends is lifted rail device and can be ensured that bridge stretches; On the rail of the road bed board other end, expansion and cotraction regulator is set, expansion and cotraction regulator is for larger gapless track or the trans-section seamless railway of bridge continuous length, makes gapless rail not hinder the impact of lower bridge girder construction in the time of variations in temperature and Relative Displacement.
Beam-ends of the present invention is lifted rail device and is adopted factory to manufacture, and possesses that precision is high, the advantage of easy construction.In gap between rebound and road bed board, utilize brace summer to support slip sleeper, slip sleeper supporting rail, can ensure the uniformity of sleeper pitch when bridge is flexible; Use linkage automatically to adjust slip sleeper position according to the wide variety of beam seam; Rebound one end and Steel Bridge are fixed, and the other end is free-extension longitudinally, automatically adapt to the variation of beam seam width.
The present invention is simple in structure, easy for installation, can provide strong support at the beam seam place of bridge end, can well adapt to large-span concrete bridge beam end, telescopic displacement that girder steel beam-ends is larger, and reduce the impact of beam-ends corner on ballastless track structure, realize track structure and crossed over crossbeam crack structure, can ensure train smooth operation.
Brief description of the drawings
Fig. 1 is plane structure schematic diagram of the present invention.
Fig. 2 is rebound of the present invention and the detailed drawing of lifting rail device.
Fig. 3 is the longitudinal profile in Fig. 2.
Fig. 4 is expansion and cotraction regulator detailed drawing of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, be convenient to be well understood to the present invention, but they do not form restriction to the present invention.
As shown in Figures 1 to 4, the present invention includes rebound 1, expansion and cotraction regulator 2 and beam-ends and lift rail device.Rebound 1 is positioned at beam and stitches 7 tops, and rebound 1 two ends soffit is connected with wide span bridge end and simply supported beam end upper surface by bearing respectively, and bearing comprises two fixed bearings 9 and two freely movable bearings 10.Two fixed bearings 9 lay respectively at beam and stitch the wide span bridge end upper surface of 7 one end, and with to be arranged on wide span bridge end corresponding in the vertical direction with the steel bridge bearing 11 between bridge pier, rebound 1 one end are supported on to bridge pier end; Two freely movable bearings 10 are arranged on beam and stitch the simply supported beam 12 end upper surfaces of 7 other ends, laterally fixing between freely movable bearing 10 and rebound 1, longitudinally freely connect.
Beam-ends is lifted rail Plant arrangement between rebound 1 and road bed board 8, adapts to the relative telescopic displacement between rebound 1 and road bed board 8, in beam-ends position, brace summer 4 is set, for supporting slip sleeper 5.After rebound 1 has been constructed, the installation of carrying out beam-ends and lifting rail device.
Claims (4)
1. a large span ballastless track bridge beam-ends structure, it is characterized in that: comprise that rebound, beam-ends lift rail device and expansion and cotraction regulator, described rebound is positioned at the beam side of sewing on, rebound two ends soffit is connected with beam body upper surface by bearing respectively, between rebound and beam Feng Yice road bed board, be connected by lifting rail device, be positioned at the rail on Longspan Bridge beam-ends or adjacent simply supported beam for the expansion and cotraction regulator of equilibrium orbit longitudinal stress.
2. large span ballastless track bridge beam-ends structure according to claim 1, it is characterized in that: described bearing comprises two fixed bearings and two freely movable bearings, two fixed bearings are positioned at the Longspan Bridge upper surface of beam seam one end, and with to be arranged on Longspan Bridge corresponding in the vertical direction with the steel bridge bearing between bridge pier, rebound one end is supported on to bridge pier end, two freely movable bearings are arranged on the simply supported beam upper surface of the beam seam other end, laterally fix, be longitudinally freely connected between freely movable bearing and rebound.
3. large span ballastless track bridge beam-ends structure according to claim 1, is characterized in that: described in lift that rail device comprises brace summer, slip sleeper and the sleeper both ends that can make to slide are supported on the linkage in the gap between rebound and road bed board.
4. according to the large span ballastless track bridge beam-ends structure described in claim 1 or 3, it is characterized in that: between described two ends, gap between each one steel rail both sides, rebound and road bed board, be at least provided with a brace summer parallel with rail, brace summer is connected to the two ends, gap between rebound and road bed board, between gap between described rebound and road bed board, be provided with slip sleeper, slip sleeper two ends are connected with brace summer respectively, and the gap place of rail between rebound and road bed board is supported on slip sleeper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572474.4A CN103898833A (en) | 2012-12-25 | 2012-12-25 | Long-span ballastless track bridge beam end structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572474.4A CN103898833A (en) | 2012-12-25 | 2012-12-25 | Long-span ballastless track bridge beam end structure |
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| Publication Number | Publication Date |
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| CN103898833A true CN103898833A (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572474.4A Pending CN103898833A (en) | 2012-12-25 | 2012-12-25 | Long-span ballastless track bridge beam end structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233958A (en) * | 2014-08-27 | 2014-12-24 | 中铁大桥勘测设计院集团有限公司 | Construction method of beam end horizontal linkage device of ballastless track multi-line steel bridge |
| CN109024108A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The modularization section of track of medium-and low-speed maglev bridge big displacement telescopic device |
| CN109024111A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The freely-supported longitudinal beam structure of medium-and low-speed maglev bridge big displacement modularization telescopic device |
| CN110373993A (en) * | 2019-08-13 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of control railroad bridge end deformation device |
| CN110528406A (en) * | 2019-09-04 | 2019-12-03 | 石家庄铁道大学 | Railroad bridge end holds out against apparatus for examination and repair and method |
| CN111155425A (en) * | 2020-03-25 | 2020-05-15 | 中铁宝桥集团有限公司 | Large-span railway steel bridge end telescoping device |
| CN111236059A (en) * | 2020-01-15 | 2020-06-05 | 中铁十五局集团路桥建设有限公司 | Telescopic track mounting structure at beam seam of horizontal and vertical curve superposed section and adjusting method |
| CN113931012A (en) * | 2021-11-10 | 2022-01-14 | 中铁第一勘察设计院集团有限公司 | Sliding ballastless track of large-span bridge beam end |
-
2012
- 2012-12-25 CN CN201210572474.4A patent/CN103898833A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233958A (en) * | 2014-08-27 | 2014-12-24 | 中铁大桥勘测设计院集团有限公司 | Construction method of beam end horizontal linkage device of ballastless track multi-line steel bridge |
| CN104233958B (en) * | 2014-08-27 | 2016-05-25 | 中铁大桥勘测设计院集团有限公司 | The construction method of the beam-ends transverse linkage device of the multi-thread steel bridge of non-fragment orbit |
| CN109024108A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The modularization section of track of medium-and low-speed maglev bridge big displacement telescopic device |
| CN109024111A (en) * | 2018-09-28 | 2018-12-18 | 中铁磁浮交通投资建设有限公司 | The freely-supported longitudinal beam structure of medium-and low-speed maglev bridge big displacement modularization telescopic device |
| CN109024108B (en) * | 2018-09-28 | 2024-03-15 | 中铁磁浮交通投资建设有限公司 | Modularized track panel of large-displacement telescopic device of medium-low-speed magnetic levitation bridge |
| CN110373993A (en) * | 2019-08-13 | 2019-10-25 | 中铁二院工程集团有限责任公司 | A kind of control railroad bridge end deformation device |
| CN112982195A (en) * | 2019-09-04 | 2021-06-18 | 石家庄铁道大学 | Railway bridge beam end jacking maintenance method |
| CN112982194A (en) * | 2019-09-04 | 2021-06-18 | 石家庄铁道大学 | Assembly device for railway bridge beam end jacking maintenance |
| CN112982194B (en) * | 2019-09-04 | 2022-08-30 | 石家庄铁道大学 | Assembly device for railway bridge beam end jacking maintenance |
| CN110528406A (en) * | 2019-09-04 | 2019-12-03 | 石家庄铁道大学 | Railroad bridge end holds out against apparatus for examination and repair and method |
| CN111236059A (en) * | 2020-01-15 | 2020-06-05 | 中铁十五局集团路桥建设有限公司 | Telescopic track mounting structure at beam seam of horizontal and vertical curve superposed section and adjusting method |
| CN111236059B (en) * | 2020-01-15 | 2021-06-01 | 中铁十五局集团路桥建设有限公司 | Telescopic track mounting structure at beam seam of horizontal and vertical curve superposed section and adjusting method |
| CN111155425A (en) * | 2020-03-25 | 2020-05-15 | 中铁宝桥集团有限公司 | Large-span railway steel bridge end telescoping device |
| CN113931012A (en) * | 2021-11-10 | 2022-01-14 | 中铁第一勘察设计院集团有限公司 | Sliding ballastless track of large-span bridge beam end |
| CN113931012B (en) * | 2021-11-10 | 2023-03-21 | 中铁第一勘察设计院集团有限公司 | Sliding ballastless track at beam end of large-span bridge |
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Application publication date: 20140702 |