CN108374322A - A kind of asymmetric main push-towing rope railway Suspension bridge structure - Google Patents
A kind of asymmetric main push-towing rope railway Suspension bridge structure Download PDFInfo
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- CN108374322A CN108374322A CN201810298279.4A CN201810298279A CN108374322A CN 108374322 A CN108374322 A CN 108374322A CN 201810298279 A CN201810298279 A CN 201810298279A CN 108374322 A CN108374322 A CN 108374322A
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- 239000000725 suspension Substances 0.000 title claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
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
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/02—Suspension bridges
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- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to bridge structure technical fields, in particular to a kind of asymmetric main push-towing rope railway Suspension bridge structure.Include the girder that high riverbank and low riverbank are connected across river valley, it is characterised in that：Further include building in the bridge tower of low riverbank side；Bridge tower vertically passes through girder, and bridge tower upper end is disposed with load-bearing cable；Load-bearing cable one end is fixedly connected with the first anchorage of low riverbank side, and the other end is fixedly connected across bridge tower upper end with the second anchorage of high riverbank side, and load-bearing cable is fixedly connected by more sunpenders with girder；First anchorage is with load-bearing cable connection point not higher than bridge tower and load-bearing cable connection point；Second anchorage is with load-bearing cable connection point not less than bridge tower and load-bearing cable connection point.The bridge structure of the present invention is simple, by asymmetrical bridge structure, solves the problems, such as that the larger riverbank of height difference is difficult to arrange suspension bridge, reduces project cost and difficulty of construction, has great promotional value.
Description
Technical field
The present invention relates to bridge structure technical fields, in particular to a kind of asymmetric main push-towing rope railway Suspension bridge structure.
Background technology
Traditional railway suspension bridge is generally symmetric pattern, supports suspension cable by the bridge tower and anchorage that are arranged symmetrically, uses
Sunpender supports bridge main beam.In order to ensure that the stability of beam section stressing conditions, usual bridge tower, anchorage and suspension cable are all phases
Mutually it is arranged symmetrically, in the case that this structure is not much different for riverbank both sides height difference or than better suited, but for
Bridge both sides riverbank height difference difference is too big, will there are problems that.
Height difference difference in riverbank is too big, in order to arrange anchorage and suspension cable, it is necessary to arrange the bridge tower of corresponding height, but for
The lower side in riverbank builds that so tall and big bridge tower is clearly inappropriate, can cause difficulty of construction and cost significantly on
It rises.In existing highway bridge structure, it is related to the larger situation of both sides riverbank elevation difference, when selecting Suspension bridge structure, can all faces
How effective and reasonable arrangement bridge tower structure the problem of.
Invention content
Present invention aim to the suspension bridge for solving to mention in above-mentioned background technology both sides riverbank elevation difference compared with
There are problems that bridge tower is difficult to reasonable Arrangement in the case of big, a kind of asymmetric main push-towing rope railway Suspension bridge structure is provided.
The technical scheme is that：A kind of asymmetric main push-towing rope railway Suspension bridge structure, including connect high river across river valley
The girder of bank and low riverbank, it is characterised in that：Further include building in the bridge tower of low riverbank side；The bridge tower is vertically
Across girder, bridge tower upper end is disposed with load-bearing cable；It described load-bearing cable one end and is anchored in the massif of low riverbank side
First anchorage is fixedly connected, and the other end passes through bridge tower upper end and the second anchorage being anchored in the massif of high riverbank side to fix company
It connects, load-bearing cable is fixedly connected by more sunpenders with girder；First anchorage is not higher than bridge with load-bearing cable connection point
Tower and load-bearing cable connection point；Second anchorage is with load-bearing cable connection point not less than bridge tower and load-bearing cable connection point.
Further second anchorage is with load-bearing cable connection point higher than bridge tower and load-bearing cable connection point.
Projection of the minimum point of the load-bearing cable on girder is located at girder along bridge to center and second
Between anchorage.
The further girder high riverbank side lower end is provided with battered leg support；The battered leg support level pour in
On the massif of high riverbank side vertically towards the steel box structure of the centroclinal arrangement of girder, the upper end of battered leg support is supported on girder
Lower face.
Second anchorage and load-bearing cable connection point higher than bridge tower and load-bearing cable connection point 10~
20m。
Further first anchorage is not higher than the upper surface of girder with load-bearing cable connection point.
Advantages of the present invention has：
1, using unsymmetric structure, entire bridge is made only to can be achieved with bridge erection with a bridge tower, and reduce bridge
Tower height degree saves bridge tower quantities, greatly reduces project cost；
2, using unsymmetric structure, main push-towing rope specification is reduced, main push-towing rope steel wire quantity is reduced, better economy；
3, it is supported using battered leg, improves the structural stability that bridge main beam leans on high riverbank side；
4, structure economics, and because of the reduction of quantities, the duration reduces significantly compared to bridge types such as arch bridges；
5, allow the possibility that suspension bridge is built in mountain area increasing, adaptability is more and more stronger.
The bridge structure of the present invention is simple, by asymmetrical bridge structure, solves the larger riverbank of height difference and is difficult to cloth
The problem of setting suspension bridge reduces project cost and difficulty of construction, has great promotional value.
Description of the drawings
Fig. 1：The bridge structure schematic diagram of the present invention；
Fig. 2：Girder, sunpender and the load-bearing cable attachment structure schematic diagram of the present invention；
Wherein：1-girder；2-bridge towers；3-load-bearing cables；4-the first anchorage；5-the second anchorage；6-sunpenders；7—
Battered leg supports.
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
Such as Fig. 1~2, a kind of asymmetric main push-towing rope railway Suspension bridge structure, including connect high riverbank and low riverbank across river valley
Girder 1, the girder 1 of the present embodiment is Steel truss structure, and 1 one end of girder is connected with the tunnel of high riverbank side, the other end across
More river valley is connect with low riverbank.Inconsistent in order to adapt to both sides riverbank height difference, the present embodiment has poured bridge tower in low riverbank side
2, bridge tower 2 vertically passes through girder 1.
Load-bearing cable 3 is provided on the bridge tower 2 of the present embodiment, load-bearing cable 3 is the combined load-bearing of multiply wirerope
Cable structure, load-bearing cable 3 is connect by more sunpenders 6 with girder 1, as shown in Fig. 2, girder 1 passes through load-bearing cable 2 and sunpender
6 across river valley.3 one end of load-bearing cable is fixedly connected with the first anchorage 4 being anchored in the massif of low riverbank side, and the other end passes through
2 upper end of bridge tower is fixedly connected with the second anchorage 5 being anchored in the massif of high riverbank side.
According to both sides riverbank structure, second anchorage 5 and 3 tie point of load-bearing cable of the present embodiment are higher than bridge tower 2 and load-bearing
3 tie point of cable can reduce the height of bridge tower 2 in this way, reduce cost.Wherein, the second anchorage 5 and 3 tie point of load-bearing cable
Higher than bridge tower 2 and 3 10~20m of tie point of load-bearing cable.
First anchorage 4 is not higher than bridge tower 2 and 3 tie point of load-bearing cable with 3 tie point of load-bearing cable, in the case of optimization, the
One anchorage 4 is not higher than the upper surface of girder 1 with 3 tie point of load-bearing cable.
The bridge structure of the present embodiment is asymmetric mode, including 2 asymmetry of bridge tower, and wherein load-bearing cable 3 is also non-right
Claim structure, wherein projection of the minimum point of load-bearing cable 3 on girder 1 be located at girder 1 along bridge to center and the second anchorage 5 it
Between.That is the minimum point of load-bearing cable 3 is partial to high riverbank side.
In order to improve the structural stability of high riverbank side girder 1, the present embodiment is arranged in 1 high riverbank side lower end of girder
There is battered leg to support 7, battered leg supports 7 to pour in high riverbank side vertically towards the steel box structure of the centroclinal arrangement of girder,
The upper end of battered leg support 7 is supported on 1 lower face of girder.
When practice of construction, bridge tower 2 is poured prior to low riverbank side, then builds two anchors with high riverbank and low riverbank respectively
Heavy stone used as an anchor sets up load-bearing cable 3, relies on the assembled girder 1 of load-bearing cable 3, girder 1 and load-bearing cable 3 are connected by sunpender 6.
The suitable bridge of the present embodiment refers to the direction of the vertical drawing in Fig. 1 to the left and right directions referred in Fig. 1, direction across bridge, vertically
Direction refers to the upper and lower directions in Fig. 1.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent defines.
Claims (6)
1. a kind of asymmetric main push-towing rope railway Suspension bridge structure includes the girder (1) that high riverbank and low riverbank are connected across river valley,
It is characterized in that：It further include the bridge tower (2) built in low riverbank side；The bridge tower (2) vertically passes through girder (1),
Bridge tower (2) upper end is disposed with load-bearing cable (3)；It described load-bearing cable (3) one end and is anchored in the massif of low riverbank side
First anchorage (4) is fixedly connected, the second anchorage that the other end passes through bridge tower (2) upper end and is anchored in the massif of high riverbank side
(5) it is fixedly connected, load-bearing cable (3) is fixedly connected by more sunpenders (6) with girder (1)；First anchorage (4) with hold
Weight cable (3) tie point is not higher than bridge tower (2) and load-bearing cable (3) tie point；Second anchorage (5) and load-bearing cable
(3) tie point is not less than bridge tower (2) and load-bearing cable (3) tie point.
2. a kind of asymmetric main push-towing rope railway Suspension bridge structure as described in claim 1, it is characterised in that：Second anchorage
(5) with load-bearing cable (3) tie point higher than bridge tower (2) and load-bearing cable (3) tie point.
3. a kind of asymmetric main push-towing rope railway Suspension bridge structure as claimed in claim 2, it is characterised in that：The load-bearing cable
(3) projection of the minimum point on girder (1) is located at girder (1) along bridge between center and the second anchorage (5).
4. a kind of asymmetric main push-towing rope railway Suspension bridge structure as claimed in claim 3, it is characterised in that：The girder (1)
High riverbank side lower end is provided with battered leg support (7)；Described battered leg support (7) position is poured in the edge on the massif of high riverbank side
Vertically towards the steel box structure of the centroclinal arrangement of girder, the upper end of battered leg support (7) is supported on girder (1) lower face.
5. a kind of asymmetric main push-towing rope railway Suspension bridge structure as claimed in claim 2, it is characterised in that：Second anchorage
(5) with load-bearing cable (3) tie point higher than bridge tower (2) and load-bearing cable (3) 10~20m of tie point.
6. a kind of asymmetric main push-towing rope railway Suspension bridge structure as described in claim 1, it is characterised in that：First anchorage
(4) upper surface of girder (1) is not higher than with load-bearing cable (3) tie point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810298279.4A CN108374322A (en) | 2018-04-04 | 2018-04-04 | A kind of asymmetric main push-towing rope railway Suspension bridge structure |
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| CN201810298279.4A CN108374322A (en) | 2018-04-04 | 2018-04-04 | A kind of asymmetric main push-towing rope railway Suspension bridge structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258292A (en) * | 2019-07-17 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | The continuous cable way bridge of unequal span |
| CN112030711A (en) * | 2020-08-13 | 2020-12-04 | 中铁第四勘察设计院集团有限公司 | Multi-tower high-low tower rigid frame system cable-stayed bridge structure |
| CN112663476A (en) * | 2020-12-31 | 2021-04-16 | 四川省交通勘察设计研究院有限公司 | Main-tower-free suspension bridge suitable for wide and deep canyons and construction scheme |
| CN116770720A (en) * | 2023-06-21 | 2023-09-19 | 中铁大桥局集团有限公司 | Asymmetric catwalk system of suspension bridge and construction method of suspension bridge |
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| CN101691742A (en) * | 2009-10-10 | 2010-04-07 | 中铁十一局集团第四工程有限公司 | Construction method for back cable-balancing single-side cantilever concreted beam bodies of slant-legged rigid frame bridges |
| CN204212264U (en) * | 2014-10-31 | 2015-03-18 | 江苏正裕建筑安装工程有限公司 | Large span steel reinforced concrete braced structures |
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2018
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| JPH07317019A (en) * | 1994-05-27 | 1995-12-05 | Tokyo Seiko Co Ltd | Small suspension bridge |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258292A (en) * | 2019-07-17 | 2019-09-20 | 中国电建集团成都勘测设计研究院有限公司 | The continuous cable way bridge of unequal span |
| CN110258292B (en) * | 2019-07-17 | 2024-03-26 | 中国电建集团成都勘测设计研究院有限公司 | Unequal-span continuous cableway bridge |
| CN112030711A (en) * | 2020-08-13 | 2020-12-04 | 中铁第四勘察设计院集团有限公司 | Multi-tower high-low tower rigid frame system cable-stayed bridge structure |
| CN112663476A (en) * | 2020-12-31 | 2021-04-16 | 四川省交通勘察设计研究院有限公司 | Main-tower-free suspension bridge suitable for wide and deep canyons and construction scheme |
| CN116770720A (en) * | 2023-06-21 | 2023-09-19 | 中铁大桥局集团有限公司 | Asymmetric catwalk system of suspension bridge and construction method of suspension bridge |
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Application publication date: 20180807 |