CN206721647U - A kind of ground anchor type single pylon cable stayed bridge structure - Google Patents
A kind of ground anchor type single pylon cable stayed bridge structure Download PDFInfo
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Abstract
The utility model discloses a kind of ground anchor type single pylon cable stayed bridge structure, is made up of basis, cushion cap, bridge tower, main span suspension cable, girder, anchoring suspension cable, anchorage, and bridge tower is located at the side of girder, by main span suspension cable and anchoring suspension cable balance；Main span suspension cable one end is anchored on king-tower, and the other end is anchored on girder, and girder passes through main span oblique pull cable suspension；Described anchor span suspension cable one end is anchored on king-tower, and the other end is anchored on earth anchor；Bridge tower side girder consolidates with bridge tower or cushion cap or basis, and opposite side is by bearing support in transition pier；Described bridge tower is located at the side of girder, can vertically or hypsokinesis set.Using this structure, conventional cable-stayed bridge end bay can be cancelled, engineering is relatively inexpensive；Girder axial compressive force is transferred to basis, while using inclination or the pile foundation of anteversion and retroversion, can improve the stability of bank slope at bridge tower, be advantageous to bridge tower and arranged to valley side, so as to reduce span, reduce project scale.
Description
Technical field
The utility model is related to it is a kind of be used for bridge structure technical field, be more particularly to a kind of mountain area valley that is applied to
Ground anchor type single pylon cable stayed bridge structure.
Background technology
As China's strategy to develop western regions continues deeply, the transport development of western each province constantly promotes.Western part, particularly
Southwest, mountain region valley is more, and bridge plays very important role in its transport development.
Cable-stayed bridge, also known as Cable stayed bridge, it is made up of Sarasota, girder, suspension cable, its good appearance is various informative, from nineteen fifty-five
First modern times cable-stayed bridge --- since Sweden's Stromsund bridges are built up, cable-stayed bridge various regions all over the world.Cable-stayed bridge, make
For a kind of guy system, span ability is big, and its drag-line has from the anchor rotation huge like that without configuring suspension bridge of anchor characteristic,
In addition good mechanical property and economic indicator, therefore turn into most important bridge type in Longspan Bridge, not only in across footpath 200m
In occupation of advantage in the range of~800m, and in the contention competition of across footpath 800m~1100m large span bridge, also play the part of
Drill important role.
Traditional cable-stayed bridge has many advantages, such as, but in terms of the complicated landforms such as mountain area valley are adapted to, still there is some shortcomings.(1)
Mountain area Valley is strategically located and difficult of access, or the more paddy of ditch are deep, or the high slope in mountain is steep, such as builds traditional multispan or only pier cable-stayed bridge, can cause bridge
The problems such as pier is strange high, difficulty of construction is big, security is poor, less economical；(2) without dorsal funciculus or special-shaped cable-stayed bridge to without suspension cable side
There are larger space requirement, mountain area Valley or more difficult satisfaction, or huge cost can be produced；(3) stability of mountain area bank slope
Difference, its horizontal tensile capacity and deformability are relatively poor, it is more difficult to meet the safety requirements of traditional cable-stayed bridge；(4) in mountain area gorge
Valley floor shape bridge construction, both sides massif is typically chosen near position, therefore relatively low is required to the span ability of cable-stayed bridge；(5) mountain
The more strong wind weathers in area, and the increase of cable-stayed bridge span can be such that its rigidity of structure drastically declines, under high wind effect, traditional cable-stayed bridge
Particularly the flutter stability of multispan cable-stayed bridge, buffeting, suspension cable wind-induced vibration and control problem are always that cable-stayed bridge is faced
Key issue.
Therefore develop it is a kind of adapt to the unique topographic and geologic condition in mountain area valley, reduce Bridge Pier Construction difficulty and construction volume,
Be advantageous to the Cable-Stayed Bridge Structure form that bank stability, the rigidity of structure are higher, span ability is larger, have very big Practical significance and
Economic value.
Utility model content
The purpose of this utility model is to provide a kind of new single pylon cable stayed bridge structure, to adapt to the unique landform in mountain area valley
Geological conditions, while Bridge Pier Construction difficulty and construction volume, bank stability, the rigidity of structure, span ability etc. are taken into account, and solve mountain area
A series of problems of cable-stayed bridge.
To achieve these goals, the utility model provides a kind of ground anchor type single pylon cable stayed bridge structure, and the structure includes
Bridge tower and girder, described bridge tower are arranged at one end of girder；Described bridge tower is by main span suspension cable and anchoring suspension cable balance；
Described main span suspension cable one end is anchored on king-tower, and the other end is anchored on girder, and girder passes through main span oblique pull cable suspension；Institute
The anchor span suspension cable one end stated is anchored on king-tower, and the other end is anchored on earth anchor；The girder end of described bridge tower side and bridge tower
Or cushion cap consolidation, opposite side is by bearing support in transition pier.
Further, described bridge tower is located at the side of girder, and described bridge tower is set perpendicular to girder.
Further, described bridge tower is located at the side of girder, and described bridge tower can also be relative to girder to being provided with
The side of earth anchor tilts.
Further, described bridge tower keeps balance by main span suspension cable and the anchor span suspension cable being anchored on earth anchor.
Further, described main span suspension cable caused axial compressive force in girder is transferred to bridge tower by girder or held
Platform or basis, are then transferred to ground.
Further, described girder is beams of concrete or steel box-girder or steel truss girder or steel-concrete combination beam, describedly
The anchorage of anchor is gravity anchor or tunnel-type anchorage.
Further, described girder is by main span oblique pull cable suspension, close to king-tower position girder and bridge tower or cushion cap
Consolidation, the horizontal component of longitudinal stay cable force are transferred to bridge tower cushion cap and basis.
Further, basis and cushion cap are provided with the bottom of bridge tower, described basis instrument is at bridge tower below earth's surface
Massif in, cushion cap positioned at basis and king-tower between, with basis at the top of and king-tower bottom be connected it is integral.
Further, the part pile foundation variable vertical in described basis is inclination or anteversion and retroversion, to balance cable-stayed bridge
Overall stress, the stress deformation for reducing massif, ensure Rock mass stability and bridge structure safe.
The utility model has advantages below relative to prior art：
(1) bridge structure of the present utility model, selection multispan Cable-Stayed Bridge Structure is avoided, or even eliminates conventional cable-stayed bridge
End bay, the overall span of Cable-Stayed Bridge Structure is reduced, improves the rigidity of structure, it is steady so as to improve the anti-flutter of Cable-Stayed Bridge Structure
Capability and anti-buffeting ability, wind resistance is good, and structure is safer；
(2) structure of the present utility model, due to eliminating end bay, bridge tower is arranged to valley side, is avoided in mountain area valley
High pier even over-height pier is built in area, the engineering construction difficulty of bridge structure is reduced, so as to improve the security performance of structure；
(3) girder axial compressive force is transferred to basis, plays a part of compacting to bank slope basis, while using inclination or front and rear
The pile foundation inclined, the entirety that can strengthen bank slope at bridge tower consolidate, and are advantageous to improve stability, the horizontal tension of bank slope at bridge tower
Ability and deformability, be advantageous to bridge tower and arranged to valley side, so as to reduce span, reduce project scale；
(4) bridge structure of the present utility model, can make full use of the topographic and geologic condition that mountain area valley is unique, and unlike
The same without dorsal funciculus or special-shaped cable-stayed bridge, the space requirement to valley side is preferable, therefore is passed through with good application value and technology
Ji benefit.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the vertical single pylon cable stayed bridge structural representation of a kind of ground anchor type suitable for level land deep valley landform；
Fig. 2 is a kind of ground anchor type inclination single pylon cable stayed bridge structural representation suitable for level land deep valley landform；
Fig. 3 is the vertical single pylon cable stayed bridge structural representation of a kind of ground anchor type suitable for high mountain gorge landform；
Fig. 4 is the bearing position partial schematic diagram of bridge tower；
Fig. 5, Fig. 6, Fig. 7, Fig. 8 are main beam structure schematic diagram；
In figure：1- bases, 2- cushion caps, 3- bridge towers, 4- main span suspension cables, 5- girders, 6- anchoring suspension cables, 7- anchorages, 8-
Massif, 9- access bridges, 10- attachment straps, 11- suspension cables, 12- anchor blocks, 13- beams of concretes, 14- steel box-girders, 15- steel truss girders, 16- steel
Mixed combination beam, 17- massif contour lines.
Embodiment
It is noted that described further below is all exemplary, it is intended to provides further instruction to the application.It is unless another
Indicate, all technologies used herein and scientific terminology are with usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
As background technology is introduced, still there is more deficiency in the prior art：(1) mountain area Valley is strategically located and difficult of access, or ditch
More paddy are deep, or the high slope in mountain is steep, such as builds traditional multispan or only pier cable-stayed bridge, can cause bridge pier it is strange it is high, difficulty of construction is big, security
The problems such as poor, less economical；(2) without dorsal funciculus or special-shaped cable-stayed bridge to having larger space requirement, mountain area gorge without suspension cable side
Valley floor shape or more difficult satisfaction, or huge cost can be produced；(3) stability of mountain area bank slope is poor, its horizontal tensile capacity and deformation
Ability is relatively poor, it is more difficult to meets the safety requirements of traditional cable-stayed bridge；(4) in mountain area Valley bridge construction, both sides are typically chosen
Massif requires relatively low near position to the span ability of cable-stayed bridge；(5) the more strong wind weathers in mountain area, and cable-stayed bridge across
The increase of degree can be such that its rigidity of structure drastically declines, under high wind effect, the flutter of traditional cable-stayed bridge particularly multispan cable-stayed bridge
Stability, buffeting, suspension cable wind-induced vibration and control problem are always the key issue that cable-stayed bridge is faced.In order to solve as above
Technical problem, the utility model proposes a kind of ground anchor type single pylon cable stayed bridge structure suitable for mountain area valley.
Below in conjunction with accompanying drawing, structure of the present utility model is further described.
The utility model provide it is a kind of adapt to the unique topographic and geologic condition in mountain area valley, reduce Bridge Pier Construction difficulty and
Construction volume, be advantageous to the earth anchor that bank stability, the rigidity of structure are higher, span ability is larger, Practical significance and economic value are very big
Formula single pylon cable stayed bridge structure, to adapt to the unique topographic and geologic condition in mountain area valley, while take into account Bridge Pier Construction difficulty and construction
Amount, bank stability, the rigidity of structure, span ability etc., and solve a series of problems of mountain area cable-stayed bridge.
Specifically as shown in FIG. 1 to 3, a kind of ground anchor type single pylon cable stayed bridge structure, by basis 1, cushion cap 2, bridge tower 3, master
Formed across suspension cable 4, girder 5, anchoring suspension cable 6, anchorage 7, the girder passes through special landform；Such as the mountain represented in figure
The contour line 17 of body；Described bridge tower 3 is located at the side of girder 5, is balanced by main span suspension cable 4 and anchoring suspension cable 6；Described
The one end of main span suspension cable 4 is anchored on king-tower 3, and the other end is anchored on girder 5, and girder 5 is suspended in midair by main span suspension cable 4；Institute
The one end of anchoring suspension cable 6 stated is anchored on king-tower 3, and the other end is anchored on earth anchor 7；Earth anchor 7 can be provided on level land
Earth anchor or the earth anchor that is arranged on hillside；The described side girder of bridge tower 3 consolidates with bridge tower 3 or cushion cap 2 or basis 1,
Opposite side is by bearing support in transition pier.
Bridge tower 3 as described in Figure 1 is located at the side of girder 5, and it is vertically arranged relative to girder, or as shown in Fig. 2 its to
Setting is tilted backwards for girder；" rear " described here is directed to set the side of earth anchor to tilt.Described bridge tower 3 is by master
Balance is kept across suspension cable 4 and the anchoring suspension cable 6 being anchored on earth anchor 7.
Further, described basis 1 is arranged at bridge tower 3 in the massif 8 below earth's surface, and cushion cap 2 is positioned at basis 1 and master
Between tower 3, integral, described main span suspension cable 4 caused axial direction in girder 5 is connected with the top of basis 1 and the bottom of king-tower 3
Pressure is transferred to bridge tower 3 or cushion cap 2 or basis 1 by girder 5, is then transferred to ground.
Further, the part pile foundation variable vertical in described basis 1 is inclination or anteversion and retroversion, to balance cable-stayed bridge
Overall stress, the stress deformation for reducing massif 8, ensure Rock mass stability and bridge structure safe.
With reference to shown in Fig. 4, described girder 5 is suspended in midair by main span suspension cable 4, close to king-tower position girder 5 and bridge tower 3
Consolidation, the horizontal component of longitudinal stay cable force are transferred to bridge tower cushion cap 2 and basis 1.
With reference to shown in Fig. 5, Fig. 6, Fig. 7, Fig. 8, described girder 5 be beams of concrete 13 or steel box-girder 14 or steel truss girder 15 or
Steel-concrete combination beam 16, described earth anchor anchorage 7 are gravity anchor or tunnel-type anchorage.
As can be seen from the above description, the application the above embodiments realize following technique effect：
(1) selection multispan Cable-Stayed Bridge Structure is avoided, or even eliminates conventional cable-stayed bridge end bay, reduces Cable-Stayed Bridge Structure
Overall span, improve the rigidity of structure, so as to improve the anti-flutter instability ability of Cable-Stayed Bridge Structure and anti-buffeting ability, resist
Wind is functional, and structure is safer；
(2) due to eliminating end bay, bridge tower to valley side arrangement, avoid and build high pier in mountain area narrow valley region or even surpass
High pier, the engineering construction difficulty of bridge structure is reduced, so as to improve the security performance of structure；
(3) girder axial compressive force is transferred to basis, plays a part of compacting to bank slope basis, while using inclination or preceding
The pile foundation of hypsokinesis, the overall cementation of bank slope at bridge tower can be consolidated and strengthened, be advantageous to improve the stability of bank slope, water at bridge tower
Flat tensile capacity and deformability, be advantageous to bridge tower and arranged to valley side, so as to reduce span, reduce project scale；
(4) the unique topographic and geologic condition in mountain area valley can be made full use of, and unlike without dorsal funciculus or special-shaped cable-stayed bridge one
Sample, the space requirement to valley side is preferable, therefore has good application value and technical economic benefit.
It is not new to this practicality although above-mentioned specific embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not pay the various modifications that creative work can make or deformation still in protection model of the present utility model
Within enclosing.
Claims (8)
1. a kind of ground anchor type single pylon cable stayed bridge structure, it is characterised in that including bridge tower and girder, described bridge tower is located at girder
One end, by main span suspension cable and anchoring suspension cable balance；Described main span suspension cable one end is anchored on king-tower, other end anchoring
In on girder, girder passes through main span oblique pull cable suspension；Described anchoring suspension cable one end is anchored on king-tower, and the other end is anchored in
On earth anchor；The girder end of described bridge tower side consolidates with bridge tower, and the other end of girder is by bearing support in transition pier.
2. a kind of ground anchor type single pylon cable stayed bridge structure described in claim 1, it is characterised in that described bridge tower is perpendicular to girder
Set.
3. a kind of ground anchor type single pylon cable stayed bridge structure described in claim 1, it is characterised in that described bridge tower can also be relative
Tilted in girder to the side for being provided with earth anchor.
4. a kind of ground anchor type single pylon cable stayed bridge structure described in claim 1, it is characterised in that described main span suspension cable is in master
Caused axial compressive force is transferred to bridge tower or cushion cap or basis by girder in beam, is then transferred to ground.
5. a kind of ground anchor type single pylon cable stayed bridge structure described in claim 1, it is characterised in that described girder is beams of concrete
Or steel box-girder or steel truss girder or steel-concrete combination beam, the anchorage of the earth anchor is gravity anchor or tunnel-type anchorage.
6. a kind of ground anchor type single pylon cable stayed bridge structure described in claim 1, it is characterised in that described girder is oblique by main span
Drag-line suspends in midair, and the horizontal component of longitudinal stay cable force is transferred to bridge tower cushion cap and basis.
7. a kind of ground anchor type single pylon cable stayed bridge structure described in claim 1, it is characterised in that the bottom of bridge tower is provided with base
Plinth and cushion cap, described basis instrument is in the massif at bridge tower below earth's surface, and cushion cap is between basis and king-tower, with basis
Top connects integral with king-tower bottom.
A kind of 8. ground anchor type single pylon cable stayed bridge structure described in claim 7, it is characterised in that the part stake in described basis
Base variable vertical is inclination or anteversion and retroversion.
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| CN201720481061.3U CN206721647U (en) | 2017-05-03 | 2017-05-03 | A kind of ground anchor type single pylon cable stayed bridge structure |
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| CN201720481061.3U CN206721647U (en) | 2017-05-03 | 2017-05-03 | A kind of ground anchor type single pylon cable stayed bridge structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958190A (en) * | 2017-05-03 | 2017-07-18 | 中交第二公路勘察设计研究院有限公司 | A kind of ground anchor type single pylon cable stayed bridge structure |
| CN108999088A (en) * | 2018-08-14 | 2018-12-14 | 张家港市欧微自动化研发有限公司 | A kind of construction method of cable-stayed bridge |
| CN110184890A (en) * | 2019-06-28 | 2019-08-30 | 同济大学建筑设计研究院(集团)有限公司 | A kind of bridge span structure |
| CN111119221A (en) * | 2020-01-17 | 2020-05-08 | 东南大学 | Shallow buried anchorage foundation base anti-sliding device, size determination method and construction method |
-
2017
- 2017-05-03 CN CN201720481061.3U patent/CN206721647U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958190A (en) * | 2017-05-03 | 2017-07-18 | 中交第二公路勘察设计研究院有限公司 | A kind of ground anchor type single pylon cable stayed bridge structure |
| CN108999088A (en) * | 2018-08-14 | 2018-12-14 | 张家港市欧微自动化研发有限公司 | A kind of construction method of cable-stayed bridge |
| CN110184890A (en) * | 2019-06-28 | 2019-08-30 | 同济大学建筑设计研究院(集团)有限公司 | A kind of bridge span structure |
| CN110184890B (en) * | 2019-06-28 | 2024-03-19 | 同济大学建筑设计研究院(集团)有限公司 | Bridge span structure |
| CN111119221A (en) * | 2020-01-17 | 2020-05-08 | 东南大学 | Shallow buried anchorage foundation base anti-sliding device, size determination method and construction method |
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