CN105463982B - A kind of spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge - Google Patents
A kind of spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge Download PDFInfo
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- CN105463982B CN105463982B CN201510779852.XA CN201510779852A CN105463982B CN 105463982 B CN105463982 B CN 105463982B CN 201510779852 A CN201510779852 A CN 201510779852A CN 105463982 B CN105463982 B CN 105463982B
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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
- E01D19/00—Structural or constructional details of bridges
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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
- E01D4/00—Arch-type bridges
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Abstract
A kind of spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge, the construction thoroughly solve the problems, such as that arch upper beam beam-ends corner deformation is transfinited, effectively improve the smooth degree of bridge floor, meet the technical conditions that long-span arch bridge is laid with non-fragment orbit.The comfort level and safety for improving driving, reduce bridge cost, facilitate later period operation management and maintenance.Including pier stud on main arch, left side border pier, right side border pier, arch and arch upper beam, left side border pier, right side border pier are respectively arranged at the two sides of main arch, pier stud is arranged along bridge to interval on the arch of lower end and main arch consolidation, it is characterized in that: the arch upper beam is continuous structure in main arch span scope, it is consolidated with the upper end of left side border pier, right side border pier, is formed and connected by support with the upper end of pier stud on each arch.
Description
Technical field
The present invention and bridge, in particular to the spandrel construction construction of a kind of non-fragment orbit large span high-speed railway arch bridge.
Background technique
With the rapid development of China's high-speed railway in recent years, across the high-speed railway Longspan Bridge of mountain area Valley
Necessarily emerge in multitude, and arch bridge not only has biggish span ability and overall stiffness, Er Qieneng as a kind of common bridge type
It is combined well with Valley, becomes the main bridge type that high-speed railway crosses over Valley.
Currently, Railway Long Span Arch Bridge spandrel construction mainly uses porous simply supported beam or multi-joint beam structure, encircle upper beam
Portion has " breaking joint ".Such as the 2000 main span 236m Shuibai Railway Beipanjiang Bridges built up, spandrel construction is 10 hole 24m freely-supported beam bodies
System, and in the Chongqing-Guichow Railway night youth 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, under the load actions such as system temperature, mobile load, meeting exists main arch ring
Cause biggish beam-ends corner to deform at arch upper beam beam seam, while causing the irregularity of bridge floor and track, strong influence is arranged
The comfort level and safety that vehicle is run at high speed.On the one hand, the corner displacement at breaking joint caused by variable load can with arch bridge across
The increasing of degree and increase, excessive corner deformation, which will lead to the stress such as track structure fastener at breaking joint, transfinites and destroys, bridge without
Method is laid with non-fragment orbit, even results in train speed limit operation；On the other hand, Mountainous high speed railway is non-fragment orbit, such as bridge
It is unable to satisfy the requirement for being laid with non-fragment orbit, then needs to be laid with Ballast track.In this way, needing a set of big machine Maintenance Machinery pair of special configuration
Track carries out operation maintenance, and non-fragment orbit changeover portion need to be arranged, and after operation a period of time, railway ballast is needed replacing, this will be big
The big operation maintenance cost for increasing the later period.
Therefore it provides a kind of spandrel construction of the long-span arch bridge suitable for non-fragment orbit, will select China's mountain railway
Line provides bigger freedom degree, has very important meaning to promotion China's Mountainous high speed railway development.
Summary of the invention
The technical problem of being solved of the invention is to provide a kind of spandrel construction of non-fragment orbit large span high-speed railway arch bridge
Construction, the construction thoroughly solve the problems, such as that arch upper beam beam-ends corner deformation is transfinited, effectively improve the smooth degree of bridge floor, satisfaction greatly across
Spend the technical conditions that arch bridge is laid with non-fragment orbit.The comfort level and safety for improving driving, reduce bridge cost, facilitate the later period
Operation management and maintenance.
It is as follows that the present invention solves the technical solution that its technical problem is taken:
A kind of spandrel construction of non-fragment orbit large span high-speed railway arch bridge of the invention constructs, including main arch, left side are handed over
Boundary's pier, right side border pier, pier stud and arch upper beam, left side border pier, right side border pier are respectively arranged at the two sides of main arch on arch, under
End is arranged along bridge to interval with pier stud on the arch of main arch consolidation, it is characterized in that: the arch upper beam is in main arch span scope
Continuous structure is consolidated with the upper end of left side border pier, right side border pier, is formed and is connected by support with the upper end of pier stud on each arch
It connects.
The invention has the advantages that arch upper beam is seamless continuous structure in main arch span scope, arch is thoroughly solved
The problem of deformation of upper beam beam-ends corner is transfinited preferably can transmit bridge floor longitudinal force to two sides, effectively improve the smooth degree of bridge floor,
The technical conditions that Loads of Long-span Bridges is laid with non-fragment orbit are met, the comfort level and safety of driving are improved；Bridge is laid with without the tiny fragments of stone, coal, etc.
Track facilitates later period operation and maintenance, has saved operation maintenance cost；Encircle upper beam at border pier and use large-span structure, effectively
The whole height for encircleing upper pier stud is reduced, reduces construction risk while saving material；Beam body can be used to segment apart and pour
It builds, can flexibly meet various execution conditions and construction period, realize the use of falling of template；Structure innovation, shape are coordinated, especially suitable
For being laid with the high-speed railway long-span arch bridge of non-fragment orbit.
Detailed description of the invention
This specification includes a following attached drawing:
Fig. 1 is a kind of schematic diagram of the spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge of the present invention；
Component and corresponding label be shown: main arch 10, left side border pier 11a, right side border pier 11b, pier stud on arch in figure
12, encircle upper beam 13.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Referring to Fig.1, the spandrel construction construction of a kind of non-fragment orbit large span high-speed railway arch bridge of the invention, including 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 respectively arranged at the two sides of main arch 10, and pier stud 12 is arranged along bridge to interval on the arch that lower end and main arch 10 consolidate.The arch
Upper beam 13 is continuous structure in 10 span scope of main arch, is consolidated with the upper end of left side border pier 11a, right side border pier 11b, with
Each upper end for encircleing upper pier stud 12 is formed by support to be connected.
Referring to Fig.1, arch upper beam 13 is seamless continuous structure in main arch span scope, thoroughly solves arch upper beam beam-ends and turns
The problem of angular deformation is transfinited, can preferably to two sides transmit bridge floor longitudinal force, effectively improve the smooth degree of bridge floor, meet greatly across
Bridge is laid with the technical conditions of non-fragment orbit, improves the comfort level and safety of driving.Bridge is laid with non-fragment orbit and facilitates
Later period operation maintenance cost has been saved in later period operation and maintenance.Encircle upper beam 13 to use in border pier (border pier 11a, 11b) two sides
Compared with the structure of large span, the whole height for encircleing upper pier stud can be reduced, reduces construction risk while saving material.Encircleing upper beam 13 can
It is poured using segmenting apart, can flexibly meet various execution conditions and construction period；Structure innovation, shape are coordinated, especially suitable
For being laid with the high-speed railway long-span arch bridge of non-fragment orbit.
By taking Shanghai elder brother visitor specially northern disk river grand bridge as an example, which is the type concrete arch bridge of main span 445m, is after building up
For the first in the world greatly across concrete arch-type bridge, design speed per hour is 350km/h, completely uses non-fragment orbit.Existing technology is such as used,
Breaking joint is arranged in beam portion at 1# pier on arch, then the maximum beam-ends corner value as caused by variable load is 3.491 ‰ at beam seam, much super
2 ‰ limit value of non-fragment orbit is crossed.It is laid with non-fragment orbit condition if not having, i.e. laying Ballast track, equipment maintenance will be increased and set
It is 8,700,000 yuan of operation maintenance costs standby etc..Using the present invention have of both the utility model has the advantages that first, arch upper beam is all continuous, thoroughly
It solves the problems, such as the deformation of beam-ends corner, meets the deformation condition for being laid with non-fragment orbit, save the later period and run maintenance cost.For
In terms of ride comfort, using existing technology, since the jump of dipping and heaving occurs in bridge floor at breaking joint, pass through vehicle bridge coupling vibration point
Analysis, train must speed limit 300km/h hereinafter, and use the present invention, train can satisfy speed per hour 350km/h operation degree of safety and relax
Appropriateness requires.Second, northern disk river grand bridge span 65m at border pier two sides using the present invention, it is 42m etc. that remaining, which encircles upper beam portion,
Across arch goes up the high 57.8m of 1# pier at this time；Such as encircle upper beam and be all made of 42m girder span, then encircles upper 1# pier and be up to 75.5m, compared with the present invention program
Increase 17.7m, encircleing upper operation, difficulty of construction and cost will increase, while remaining encircles upper pier and can increase accordingly.Through calculating
It is arranged using beam span on arch of the present invention, always a height of 235.4m, such as arch upper beam use 42m to pier on the especially big bridge arch of Bei Panjiang
When Deng across arrangement, the total a height of 324.3m of pier on arch.Using the present invention program, a bridge pier is saved, saves and encircles upper pier quantity of masonry
1950 sides save bricklaying up to 38%, save 242.6 ten thousand yuan of cost.Encircle upper 42m girder span simultaneously and uses simple-supported thencontinuous, segmentation
It is formed, realizes repeatedly using for template, effectively reduce the difficulty of construction and bridge cost of bridge.
The above is a kind of spandrel construction of non-fragment orbit large span high-speed railway arch bridge of the present invention that explains through diagrams
Some principles of construction are not intended to for the present invention being confined in shown and described specific structure and the scope of application, therefore all
All corresponding modifications that may be utilized and equivalent, belong to the applied the scope of the patents of the present invention.
Claims (1)
1. a kind of spandrel construction of non-fragment orbit large span high-speed railway arch bridge constructs, including main arch (10), left side border pier
Pier stud (12) and arch upper beam (13), left side border pier (11a), right side border pier in (11a), right side border pier (11b), arch
(11b) is respectively arranged at the two sides of main arch (10), and pier stud (12) is set along bridge to interval on the arch that lower end is consolidated with main arch (10)
It sets, it is characterized in that: the arch upper beam (13) is continuous structure in main arch (10) span scope, with left side border pier (11a), the right side
The upper end of side border pier (11b) consolidates, and is formed and is connected by support with the upper end of pier stud (12) on each arch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779852.XA CN105463982B (en) | 2015-11-13 | 2015-11-13 | A kind of spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510779852.XA CN105463982B (en) | 2015-11-13 | 2015-11-13 | A kind of spandrel construction construction of non-fragment orbit large span high-speed railway arch bridge |
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| CN105463982A CN105463982A (en) | 2016-04-06 |
| CN105463982B true CN105463982B (en) | 2019-01-04 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106958187B (en) * | 2017-03-23 | 2019-05-21 | 中铁二院工程集团有限责任公司 | A kind of lateral displacement control method of high-speed railway long-span arch bridge |
| CN110565534A (en) * | 2019-09-28 | 2019-12-13 | 中铁十八局集团第二工程有限公司 | construction method for assembling continuous steel box girder by cantilever |
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| KR20080114297A (en) * | 2007-06-27 | 2008-12-31 | 조성인 | Arch bridge and method of constructing the bridge in brook |
| CN201212125Y (en) * | 2008-06-16 | 2009-03-25 | 江西中煤建设工程有限公司 | Arch bridge of box shaped main arch ring inlaid with reinforced concrete slab |
| CN102493360A (en) * | 2011-12-29 | 2012-06-13 | 浙江大东吴集团建设有限公司 | Reinforced concrete arch bridge construction method |
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| CN101289835A (en) * | 2008-06-16 | 2008-10-22 | 江西中煤建设工程有限公司 | Process for rebuilding double arch bridge by replacing arch style construction on arch with continuous slabs |
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| KR20080114297A (en) * | 2007-06-27 | 2008-12-31 | 조성인 | Arch bridge and method of constructing the bridge in brook |
| CN201212125Y (en) * | 2008-06-16 | 2009-03-25 | 江西中煤建设工程有限公司 | Arch bridge of box shaped main arch ring inlaid with reinforced concrete slab |
| CN202347427U (en) * | 2011-06-20 | 2012-07-25 | 大连理工大学 | Tied arch-T type rigid framework cooperation system bridge |
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