CN201116364Y - Railway slag-free orbit bridge end extending flexing device - Google Patents
Railway slag-free orbit bridge end extending flexing device Download PDFInfo
- Publication number
- CN201116364Y CN201116364Y CNU2007201735123U CN200720173512U CN201116364Y CN 201116364 Y CN201116364 Y CN 201116364Y CN U2007201735123 U CNU2007201735123 U CN U2007201735123U CN 200720173512 U CN200720173512 U CN 200720173512U CN 201116364 Y CN201116364 Y CN 201116364Y
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- bridge
- ballastless track
- bar
- railway
- shaped steel
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Abstract
The utility model provides an extension-torsion device for the bridge end of a railway ballastless track bridge, which is disposed at the beam gap of the railway ballastless track bridge. A sealed rubber strip with a cavity is horizontally disposed along the longitudinal direction of the beam gap, two sides of the sealed rubber strip are equipped with fixed section steels connected with the sealed rubber strip, a bearing sliding shaft which is perpendicular to the longitudinal axis of the bridge body is disposed below the fixed section steels, the end of the bearing sliding shaft extends into a steel sleeve barrel which is preset in the bridge body, and a rubber gasket is coated on the fixed section steel which is corresponding to the bearing sliding shaft. The extension-torsion device can realize three functions of horizontal extension of bridge ends, torsion rotation and vertical bearing based on conventional water resistance, thereby satisfying requirements of the railway large-span ballastless track bridge gap on the extension adjusting device. Further, the extension-torsion device can enable ballastless plates on the bridge to be arranged optionally without being limited by the size of the beam gap, thereby solving the problem that ballastless tracks are difficult to be arranged on the railway large-span bridge, and reducing engineering cost of the ballastless tracks of the railway large-span bridge.
Description
Technical field
The utility model relates to the bridge member of railway ballastless track bridge engineering, be particularly related to a kind of railway ballastless track bridge girder end extending flexing device, it is arranged at railway ballastless track bridge beam seam place, has been waterproof action, has supported superstructure and satisfy the flexible bridge member with vertical deflection deformation of bridge beam body level simultaneously.
Background technology
Existing railway ballastless track bridge engineering, as shown in Figure 1, the bridge top is provided with the rail 3 that supports by the rail fulcrum in the track 2.Whole bridge beam body end portion supports is on abutment 6, and the middle part of bridge beam body is supported on the bridge pier 8.Described bridge beam body comprises continuous structure beam body 1 and freely supported structure beam body 4.The beam-ends bearing comprises fixed bearing 7 and freely movable bearing 9.What usually the beam body of bridge was wanted bearing temperature load and train load does usefulness jointly, need stretch in the Liang Chu setting and scratch device 5.Be depicted as the state diagram of bridge beam body before and after heating up as Fig. 2 (a), Fig. 2 (b), the beam body of bridge is along elongation of freely movable bearing 9 ends and shortening.As shown in Figure 3, in vertical train load effect following time, beam know from experience to produce deflection deformation, makes that the beam section of hanging beyond the bearing is that run-on point has upwards been scratched a deflection rotational angle theta with the bearing, so just requires to stretch to scratch device 5 and have and adapt to the stretch function of displacement and deflection rotation displacement of beam body.
When being railway ballastless track bridge, as shown in Figure 4, require rail fulcrum 2 spacing a＜=650mm, rail fulcrum 2 is from the distance b＞=250mm of beam-ends, and this just requires the beam seam apart from c＜=100mm.And in fact when beam body span is big, for satisfying the requirement of distortion, c is usually greater than 100mm, this causes the difficult problem of ballastless track plate laying on the bridge with regard to existing Bridge Beam to stitch excessive, for satisfying the designing requirement of a, b, need stitch at beam and set up rail fulcrum 2 on the c, this just requires stretching of beam-ends to scratch the function that device 5 also will have the vertical force of bearing the rail transmission.Level is flexible, deflection is rotated and vertically carried stretching of three kinds of functional requirements and scratches device and present railway ballastless track bridge does not also have to satisfy simultaneously.
Summary of the invention
The purpose of this utility model is the defective at above-mentioned prior art, provide a kind of and possessed simultaneously that level is flexible, deflection is rotated, vertically carry the railway ballastless track bridge girder end extending flexing device of three kinds of functions, can make ballastless track plate on the bridge not be subjected to the restriction of beam seam size and lay arbitrarily, thereby reduce the engineering cost of ballastless track on the railway wide span bridge.
To achieve these goals, the technical scheme that the utility model is taked is: a kind of railway ballastless track bridge girder end extending flexing device is arranged at railway ballastless track bridge beam seam place.In order to make the utility model possess simultaneously that level is flexible, deflection is rotated, vertically carry three kinds of functions, be provided with the sealing rubber strip that contains cavity along described beam seam vertical equity, the sealing rubber strip both sides are provided with coupled fixedly shaped steel, fixedly the shaped steel below is provided with and the orthogonal slide-bar that holds of bridge beam body longitudinal axis, hold the end of slide-bar and stretch in the steel bushing that is preset in the beam body, hold the corresponding fixedly shaped steel place of slide-bar and be socketed with rubber washer.
In order to make the utility model can transmit power and distortion smoothly, described fixedly shaped steel and steel bushing and hold and be respectively equipped with the leveling steel plate between the slide-bar.
Described rubber washer is arranged in the steel bushing and described steel bushing is stretched out in the end, and described steel bushing arrival end is provided with, is socketed in the collar on the described rubber washer external part, and collar inside is provided with the step of location usefulness.
Described rubber washer is arranged at the middle part of holding slide-bar and supports the fixedly position of shaped steel.
For the utility model is installed firmly, be provided with anchor bar in the described beam body, anchor bar and fixedly shaped steel firmly weld.
The beneficial effects of the utility model are: compared to existing technology, the utility model is on the basis of conventional waterproof, the level that can realize beam-ends is simultaneously stretched, deflection is rotated, vertically carried three kinds of functions, satisfies the requirement of Long Span Railway ballastless track bridge beam seam to extension adjustment device.It can make ballastless track plate on the bridge not be subjected to the restriction of beam seam size and lay arbitrarily in addition, thereby has reduced the engineering cost of ballastless track on the railway wide span bridge.
Description of drawings
Fig. 1 is the railway ballastless track bridge girder end extending flexing device arrangement diagram;
Fig. 2 (a) is the state diagram of bridge beam body before intensification among Fig. 1;
Fig. 2 (b) is the state diagram of bridge beam body behind elevated temperature deformation s among Fig. 1;
Fig. 3 is the bridge beam body beam-ends generation deflection rotational deformation schematic diagram under the train load effect among Fig. 1;
Fig. 4 is the beam seam place rail fulcrum among Fig. 1 and the tectonic relationship schematic diagram of beam-ends;
Fig. 5 is the utility model unitary construction elevation;
Fig. 6 is the I-I profile of Fig. 5;
Fig. 7 is the II-II profile of Fig. 5;
Fig. 8 is the III-III profile of Fig. 5;
Fig. 9 is the IV-IV profile of Fig. 5.
Among the figure: 1 continuous structure beam body, 2 rail fulcrums, 3 rail, 4 freely supported structure beam bodies, 5 are stretched and are scratched device, 6 abutments, 7 fixed bearings, 8 bridge piers, 9 freely movable bearings, 11 fixedly shaped steel, 12 sealing rubber strips, 13 leveling steel plates, 14 steel bushings, 15 hold slide-bar, 16 rubber washers, 17 collars, 18 anchor bars, 19 beam bodies, 20 toppings, a rail length of support, b rail fulcrum apart from beam-ends distance, c beam seam, s stroke, θ deflection corner.
The specific embodiment
A kind of railway ballastless track bridge girder end extending flexing device shown in Fig. 5-9; be arranged at railway ballastless track bridge beam seam place; described beam body 19 tops are provided with topping 20; two sealing rubber strips 12 that contain cavity that are provided with along described beam seam place vertical equity; sealing rubber strip 12 both sides are provided with coupled fixedly shaped steel 11; fixedly shaped steel 11 belows are provided with and the orthogonal slide-bar 15 that holds of bridge beam body longitudinal axis, hold the end of slide-bar 15 and stretch in the steel bushing 14 that is preset in the beam body 19.Hold slide-bar 15 corresponding fixedly shaped steel 11 places and be socketed with rubber washer 16, rubber washer 16 is rubber washers of annular compressible, and rubber washer 16 is arranged on steel bushing 14 inside of corresponding fixedly shaped steel 11 and the middle part of holding slide-bar 15.Described steel bushing 14 arrival ends are provided with collar 17, and collar 17 inside are provided with the step of location usefulness.Place the rubber washer 16 of steel bushing 14 inboards closely connected with steel bushing 14, it is big that its internal diameter holds slide-bar 15 diameters, can be free movable in steel bushing 14 so that hold slide-bar 15; Described steel bushing 14 is stretched out in the end of described in addition rubber washer 16, and stretches in the described collar 17.Be provided with leveling steel plate 13 between described fixedly shaped steel 11 and the steel bushing 14, described fixedly shaped steel 11 and hold and be provided with leveling steel plate 13 between the slide-bar 15.Be provided with snakelike anchor bar 18 in the described beam body 19, anchor bar 18 firmly weld with fixing shaped steel 11, anchor bar 18 and fixedly shaped steel 11 be arranged in the topping 20 of beam body 19.
Design principle of the present utility model: wherein, 12 of sealing rubber strips prevent that the bridge floor rainwater from influencing the function of use of lower member from the immersion of beam seam, simultaneously because sealing rubber strip 12 has cavity, so can adapt to the distortion of beam body 19.Fixedly shaped steel 11 plays fixing seal rubber strip 12, and the vertical force of the rail fulcrum that born is passed to holds slide-bar 15 and bear.The leveling billet plays to fill and holds slide-bar 15 and steel bushing 14 and the space that fixedly exists between the shaped steel 11, makes fixedly shaped steel 11 and holds smooth transmission power and distortion between slide-bar 15, the steel bushing 14.Described steel bushing 14 is embedded in the beam end of body, opens up and holds slide-bar 15 horizontal slip distortion and the required space of deflection rotational deformation, and the diameter of steel bushing 14 and length are determined according to beam-ends corner and horizontal displacement.The described slide-bar 15 that holds plays fixedly shaped steel 11 of supporting beam seam middle part, and its diameter and cross-bridges direction are laid radical and laid spacing, determine according to stressed.Described rubber washer 16 comprises the rubber washer 16 that places steel bushing 14 inboards, and cuff is in the rubber washer 16 on the slide-bar 15 of holding at fixedly shaped steel 11 places at beam seam middle part.Because rubber washer 16 is elastic body, itself has compression function, adapts to the effect of the deflection deformation of beam body 19 jointly.The thickness of rubber washer 16 and width are determined by the required amount of spin of beam-ends.Described collar 17 plays rubber washer 16 effects in the stationary steel bushing tube 14.Described anchor bar 18 is embedded in beam body 19 toppings 20, plays fixedly shaped steel 11.
The utility model railway ballastless track bridge girder end extending flexing device is on the basis of conventional waterproof, can satisfy the horizontal dilatation of beam-ends simultaneously, deflection rotational deformation and the requirement of the vertical carrying of beam seam gap rail fulcrum is provided, solved the difficulty that is faced when Bridge Beam seam place ballastless track is provided with effectively, can make the ballastless track plate on the bridge not be subjected to the restriction and the laying arbitrarily of beam seam size, thereby reduce the engineering cost of ballastless track on the railway wide span bridge.
Above-described embodiment, the utility model specific embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection domain of the present utility model.
Claims (5)
1. railway ballastless track bridge girder end extending flexing device, be arranged at railway ballastless track bridge beam seam place, it is characterized in that: be provided with the sealing rubber strip that contains cavity along described beam seam vertical equity, the sealing rubber strip both sides are provided with coupled fixedly shaped steel, fixedly the shaped steel below is provided with and the orthogonal slide-bar that holds of bridge beam body longitudinal axis, hold the end of slide-bar and stretch in the steel bushing that is preset in the beam body, hold the corresponding fixedly shaped steel place of slide-bar and be socketed with rubber washer.
2. railway ballastless track bridge girder end extending flexing device according to claim 1 is characterized in that: described fixedly shaped steel and steel bushing and hold and be respectively equipped with the leveling steel plate between the slide-bar.
3. railway ballastless track bridge girder end extending flexing device according to claim 1, it is characterized in that: described rubber washer is arranged in the steel bushing and described steel bushing is stretched out in the end, described steel bushing arrival end is provided with, is socketed in the collar on the described rubber washer external part, and collar inside is provided with step.
4, railway ballastless track bridge girder end extending flexing device according to claim 1 is characterized in that: described rubber washer is arranged at the middle part of holding slide-bar and supports the fixedly position of shaped steel.
5. according to claim 1 or 4 arbitrary described railway ballastless track bridge girder end extending flexing devices, it is characterized in that: be provided with anchor bar in the described beam body, anchor bar and fixedly shaped steel firmly weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201735123U CN201116364Y (en) | 2007-09-30 | 2007-09-30 | Railway slag-free orbit bridge end extending flexing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201735123U CN201116364Y (en) | 2007-09-30 | 2007-09-30 | Railway slag-free orbit bridge end extending flexing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201116364Y true CN201116364Y (en) | 2008-09-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201735123U Expired - Lifetime CN201116364Y (en) | 2007-09-30 | 2007-09-30 | Railway slag-free orbit bridge end extending flexing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201116364Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139816B (en) * | 2007-09-30 | 2010-12-08 | 中铁二院工程集团有限责任公司 | Railway ballastless track bridge girder end extending flexing device |
| CN102304893A (en) * | 2011-07-01 | 2012-01-04 | 株洲时代新材料科技股份有限公司 | Piston-type bridge buffer protection method and device and manufacture method |
| CN102635065A (en) * | 2012-05-03 | 2012-08-15 | 山西省宏图建设工程有限公司 | Zipper type deformation joint device for roads and bridges |
| CN105088939A (en) * | 2015-08-12 | 2015-11-25 | 四川睿铁科技有限责任公司 | Cold-resistant railway waterproof telescopic device |
-
2007
- 2007-09-30 CN CNU2007201735123U patent/CN201116364Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101139816B (en) * | 2007-09-30 | 2010-12-08 | 中铁二院工程集团有限责任公司 | Railway ballastless track bridge girder end extending flexing device |
| CN102304893A (en) * | 2011-07-01 | 2012-01-04 | 株洲时代新材料科技股份有限公司 | Piston-type bridge buffer protection method and device and manufacture method |
| CN102635065A (en) * | 2012-05-03 | 2012-08-15 | 山西省宏图建设工程有限公司 | Zipper type deformation joint device for roads and bridges |
| CN105088939A (en) * | 2015-08-12 | 2015-11-25 | 四川睿铁科技有限责任公司 | Cold-resistant railway waterproof telescopic device |
| CN105088939B (en) * | 2015-08-12 | 2017-03-29 | 四川睿铁科技有限责任公司 | A kind of cold-resistant type railway waterproof retractor device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA RAILWAY ENGINEERING GROUP OF HOSPITALS LIMIT Free format text: FORMER OWNER: LIU MINGJUN Effective date: 20090605 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090605 Address after: Sichuan province Chengdu City Kam Tong Road 3, zip code: 610031 Patentee after: China Railway Eryuan Engineering Group Co., Ltd. Address before: Zip code No. 3 creec Civil Hospital, Sichuan province Chengdu City Kam Tong Road 610031 Patentee before: Liu Mingjun |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20080917 Effective date of abandoning: 20070930 |