CN205223832U - Building structure on hunch of ballastless track large -span high -speed railway arched bridge - Google Patents
Building structure on hunch of ballastless track large -span high -speed railway arched bridge Download PDFInfo
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- CN205223832U CN205223832U CN201520908559.4U CN201520908559U CN205223832U CN 205223832 U CN205223832 U CN 205223832U CN 201520908559 U CN201520908559 U CN 201520908559U CN 205223832 U CN205223832 U CN 205223832U
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Abstract
The utility model provides a building structure on hunch of ballastless track large -span high -speed railway arched bridge, should construct and thoroughly solve the problem of encircleing the deformation of upper beam beam -ends corner and transfiniting, effectively improved the smooth -going degree of bridge floor, satisfied the technical conditions that ballastless track was laid to the large -span arched bridge. Improve the comfort level and the security of driving, reduced the bridge cost, make things convenient for later stage operation management and maintenance. Pier stud and hunch are put the beams in place on main arch, left side boundary mound, right side boundary mound, hunch, and left side boundary mound, right side boundary mound set up respectively in the both sides of main arch, and the pier stud is along setting up characterized by to the interval in the same direction as the bridge on lower extreme and the concrete hunch of main arch: it be structure in succession at main arch span within range encircle to put the beams in place, concreties with the upper end of left side boundary mound, right side boundary mound, encircles the upper end of going up the pier stud and passes through support formation and be connected with each.
Description
Technical field
The utility model and bridge, particularly a kind of spandrel construction structure of non-fragment orbit large span high-speed railway arch bridge.
Background technology
Along with the develop rapidly of China's high-speed railway in recent years, the high-speed railway Longspan Bridge crossing over mountain area Valley must emerge in multitude, and arch bridge is as a kind of conventional bridge type, not only there is larger span ability and integral rigidity, and can well combine with Valley, become the main bridge type that Valley crossed over by high-speed railway.
At present, Railway Long Span Arch Bridge spandrel construction mainly adopts porous simply supported beam or multi-joint beam structure, and arch upper beam portion all has " breaking joint ".As the 2000 main span 236m Shuibai Railway north dish Jiang great Qiao built up, spandrel construction is 10 hole 24m simply supported beam systems, and Chongqing-Guichow Railway youth at the night river two-wire grand bridge built, main span is 370m deck type reinforced concrete arch bridge, and spandrel construction is the continuous beam on many supports system of 3 38m.For long-span arch bridge, main arch ring, under the load action such as system temperature, mobile load, can cause the distortion of larger beam-ends corner at arch upper beam beam seam place, cause the irregularity of bridge floor and track simultaneously, will affect comfort level and safety that train runs at high speed greatly.On the one hand, the corner displacement at the breaking joint place that variable load causes can increase along with the increasing of arch bridge span, excessive corner distortion will cause stressed the transfiniting such as breaking joint place track structure fastener and destroy, and bridge cannot lay non-fragment orbit, even causes train speed limit to run; On the other hand, Mountainous high speed railway is non-fragment orbit, as bridge cannot meet the requirement of laying non-fragment orbit, then needs to lay Ballast track.So, need a set of large machine Maintenance Machinery of special configuration to carry out operation maintenance to track, and non-fragment orbit changeover portion need be set, and after running a period of time, railway ballast needs to change, and this will increase the operation maintenance cost in later stage greatly.
Therefore, a kind of spandrel construction being applicable to the long-span arch bridge of non-fragment orbit is provided, provides larger degree of freedom by China's mountain railway route selection, have very important meaning to promotion China Mountainous high speed railway development.
Utility model content
The utility model want technical solution problem be to provide a kind of non-fragment orbit large span high-speed railway arch bridge spandrel construction structure, this structure thoroughly solves arch upper beam beam-ends corner and is out of shape the problem transfinited, the smooth degree of effective raising bridge floor, meets the technical condition that long-span arch bridge lays non-fragment orbit.Improve comfort level and the safety of driving, reduce bridge cost, facilitate later stage operation management and maintenance.
The technical scheme in the invention for solving the technical problem is as follows:
The spandrel construction structure of a kind of non-fragment orbit large span high-speed railway arch bridge of the present utility model, comprise pier stud and arch upper beam on main arch, left side border pier, right side border pier, arch, left side border pier, right side border pier are arranged at the both sides of main arch respectively, on the arch of lower end and main arch consolidation, pier stud is arranged along along bridge to interval, it is characterized in that: described arch upper beam is continuous structure in main arch span scope, with the upper end consolidation of left side border pier, right side border pier, to be formed by bearing with the upper end of pier stud on each arch and be connected.
The beneficial effects of the utility model are, arch upper beam is seamless continuous structure in main arch span scope, thorough solution arch upper beam beam-ends corner is out of shape the problem transfinited, bridge floor longitudinal force can better be transmitted to both sides, the smooth degree of effective raising bridge floor, meet the technical condition that Loads of Long-span Bridges lays non-fragment orbit, improve comfort level and the safety of driving; Bridge is laid non-fragment orbit and is facilitated later stage operation and maintenance, has saved operation maintenance cost; At border pier place, arch upper beam adopts large-span structure, effectively reduces the whole height of the upper pier stud of arch, reduces construction risk while saving material; Liang Tike adopts to segment apart and builds, and can meet various execution conditions and construction period flexibly, realizes the use of falling of template; Structure innovation, profile are coordinated, and are specially adapted to the high-speed railway long-span arch bridge laying non-fragment orbit.
Accompanying drawing explanation
This manual comprises a following accompanying drawing:
Fig. 1 is the schematic diagram of the spandrel construction structure of a kind of non-fragment orbit large span of the utility model high-speed railway arch bridge;
Component shown in figure and corresponding mark: pier stud 12, arch upper beam 13 on main arch 10, left side border pier 11a, right side border pier 11b, arch.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
With reference to Fig. 1, the spandrel construction structure of a kind of non-fragment orbit large span high-speed railway arch bridge of the present utility model, comprise pier stud 12 and arch upper beam 13 on main arch 10, left side border pier 11a, right side border pier 11b, arch, left side border pier 11a, right side border pier 11b are arranged at the both sides of main arch 10 respectively, and on the arch of lower end and main arch 10 consolidation, pier stud 12 is arranged along along bridge to interval.Described arch upper beam 13 is continuous structure in main arch 10 span scope, with the upper end consolidation of left side border pier 11a, right side border pier 11b, to be formed be connected with the upper end of pier stud 12 on each arch by bearing.
With reference to Fig. 1, arch upper beam 13 is seamless continuous structure in main arch span scope, thorough solution arch upper beam beam-ends corner is out of shape the problem transfinited, bridge floor longitudinal force can better be transmitted to both sides, the smooth degree of effective raising bridge floor, meet the technical condition that Loads of Long-span Bridges lays non-fragment orbit, improve comfort level and the safety of driving.Bridge is laid non-fragment orbit and is facilitated later stage operation and maintenance, has saved later stage operation maintenance cost.Arch upper beam 13 adopts the structure compared with large span in border pier (border pier 11a, 11b) both sides, can reduce the whole height of the upper pier stud of arch, reduce construction risk while saving material.Arch upper beam 13 can adopt to segment apart builds, and can meet various execution conditions and construction period flexibly; Structure innovation, profile are coordinated, and are specially adapted to the high-speed railway long-span arch bridge laying non-fragment orbit.
For Shanghai elder brother visitor specially north dish river grand bridge, this bridge is the type concrete arch bridge of main span 445m, and for the first in the world is greatly across concrete arch-type bridge after building up, design speed per hour is 350km/h, adopts non-fragment orbit completely.As adopted existing technology, on arch, beam portion of 1# pier place arranges breaking joint, then the maximum beam-ends corner value that beam seam place is caused by variable load is 3.491 ‰, considerably beyond non-fragment orbit 2 ‰ limit value.Lay non-fragment orbit condition if do not possess, namely lay Ballast track, the operation maintenance cost 8,700,000 yuan such as facility maintenance of equipment will be increased.Adopt the utility model to have the beneficial effect of two aspects: the first, arch upper beam is all continuous, thoroughly solves the problem of beam-ends corner distortion, meets the deformation condition laying non-fragment orbit, saves later stage operation maintenance cost.For ride comfort aspect, adopt existing technology, because the jump of dipping and heaving appears in breaking joint place bridge floor, pass through Vehicle-bridge Coupling Analysis, train palpus below speed limit 300km/h, and adopt the utility model, train can meet degree of safety and the comfort level requirement of speed per hour 350km/h operation.The second, north dish river grand bridge adopts the utility model at border pier both sides place span 65m, and all the other arch upper beam portions are 42m etc. across, the now upper 1# pier height 57.8m of arch; All adopt 42m girder span as encircleed upper beam, then the upper 1# pier of arch is up to 75.5m, and comparatively the utility model scheme increases 17.7m, operation on arch, and difficulty of construction and cost are all by increase, and the upper pier of all the other arches all can correspondingly increase simultaneously.Adopt beam span on arch described in the utility model to arrange through measuring and calculating, on the especially big bridge arch of Bei Panjiang, pier height overall is 235.4m, as arch upper beam adopt 42m etc. across layout time, on arch, pier height overall is 324.3m.Adopt the utility model scheme, save a bridge pier, save upper pier quantity of masonry 1950 side of arch, save bricklaying and reach 38%, save cost 242.6 ten thousand yuan.The upper 42m girder span of arch adopts simple-supported thencontinuous simultaneously, and segmentation is formed, and what realize template repeatedly falls use, effectively reduces difficulty of construction and the bridge cost of bridge.
Some principles of the spandrel construction structure of the above a kind of non-fragment orbit large span of the utility model high-speed railway arch bridge that just explains through diagrams, be not the utility model to be confined to shown in and in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the utility model is applied for.
Claims (1)
1. the spandrel construction structure of a non-fragment orbit large span high-speed railway arch bridge, comprise main arch (10), left side border pier (11a), right side border pier (11b), pier stud (12) and arch upper beam (13) on arch, left side border pier (11a), right side border pier (11b) is arranged at the both sides of main arch (10) respectively, on the arch of lower end and main arch (10) consolidation, pier stud (12) is arranged along along bridge to interval, it is characterized in that: described arch upper beam (13) is continuous structure in main arch (10) span scope, with left side border pier (11a), the upper end consolidation on right side border pier (11b), to be formed by bearing with the upper end of pier stud (12) on each arch and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908559.4U CN205223832U (en) | 2015-11-13 | 2015-11-13 | Building structure on hunch of ballastless track large -span high -speed railway arched bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520908559.4U CN205223832U (en) | 2015-11-13 | 2015-11-13 | Building structure on hunch of ballastless track large -span high -speed railway arched bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205223832U true CN205223832U (en) | 2016-05-11 |
Family
ID=55898907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520908559.4U Withdrawn - After Issue CN205223832U (en) | 2015-11-13 | 2015-11-13 | Building structure on hunch of ballastless track large -span high -speed railway arched bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205223832U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463982A (en) * | 2015-11-13 | 2016-04-06 | 中铁二院工程集团有限责任公司 | Spandrel architectural construction of ballastless track wide-span high-speed railway arch bridge |
| CN113430907A (en) * | 2021-05-26 | 2021-09-24 | 中铁第一勘察设计院集团有限公司 | Railway lattice type arch upright post |
-
2015
- 2015-11-13 CN CN201520908559.4U patent/CN205223832U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463982A (en) * | 2015-11-13 | 2016-04-06 | 中铁二院工程集团有限责任公司 | Spandrel architectural construction of ballastless track wide-span high-speed railway arch bridge |
| CN105463982B (en) * | 2015-11-13 | 2019-01-04 | 中铁二院工程集团有限责任公司 | A kind of spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge |
| CN113430907A (en) * | 2021-05-26 | 2021-09-24 | 中铁第一勘察设计院集团有限公司 | Railway lattice type arch upright post |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160525 Address after: 100844 Fuxing Road, Beijing, Haidian District, No. 10 Patentee after: CHINA RAILWAY CORPORATION Patentee after: China Railway Eryuan Engineering Group Co., Ltd. Address before: 610031 Sichuan Province, Chengdu City Kam Tong Road No. 3 Patentee before: China Railway Eryuan Engineering Group Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160511 Effective date of abandoning: 20190104 |