CN209039950U - One kind having dorsal funciculus continuous rigid frame partial cable-stayed bridge - Google Patents
One kind having dorsal funciculus continuous rigid frame partial cable-stayed bridge Download PDFInfo
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- CN209039950U CN209039950U CN201820521566.2U CN201820521566U CN209039950U CN 209039950 U CN209039950 U CN 209039950U CN 201820521566 U CN201820521566 U CN 201820521566U CN 209039950 U CN209039950 U CN 209039950U
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Abstract
The utility model relates to one kind dorsal funciculus continuous rigid frame partial cable-stayed bridge, including girder and two symmetrical bridge towers, and bridge tower bottom is rigid structure pier；Common suspension cable is symmetrically arranged between every bridge tower two sides and girder；Rear dorsal funciculus is provided between every bridge tower and the side bridge end.The utility model is by adding dorsal funciculus, in the case where not increasing tower height and girder material utilization amount, the rigidity of partial cable-stayed bridge is effectively increased to adapt to the requirement of high-speed railway, and then the application range of partial cable-stayed bridge has been expanded, to which this structurally reasonable, better economy long-span bridges are promoted the use of in high-speed railway.
Description
Technical field
The utility model relates to a kind of car body surfaces to protect attachment, and in particular to one kind has dorsal funciculus continuous rigid frame part oblique pull
Bridge.
Background technique
Continuous rigid frame partial cable-stayed bridge is a kind of transitional bridge between cable-stayed bridge and continuous rigid frame, has concentrated two
The advantages of kind common bridge type, is.Compared with general cable-stayed bridge, partial cable-stayed bridge has bridge tower shorter, girder rigidity is larger,
The features such as drag-line is relatively concentrated, girder use concrete structure, are applicable between 100~300m of across footpath, in recent years in highway, railway bridge
It is quickly grown in beam, has become a kind of more typical bridge type.
It is stringent to the rigidity and deformation requirements of bridge structure but with the fast development of high-speed railway, especially without the tiny fragments of stone, coal, etc.
Track bridge.Partial cable-stayed bridge is since bridge tower is shorter, and suspension cable effect of putting more energy into is limited, the knot of (200m or more) larger for span
Structure, girder time deformation is larger, and conventional partial cable-stayed bridge is difficult to meet requirement of the non-fragment orbit to residual deformation of creeping.Cause
This considers that dorsal funciculus further increases overall structure rigidity after increasing, and while control king-tower deforms, control girder span centre is crept down
It scratches, girder span centre time deformation about 20% can be effectively reduced.
Summary of the invention
The purpose of the utility model is to provide one kind dorsal funciculus continuous rigid frame partial cable-stayed bridge, in conventional continuous rigid frame part
On the basis of cable-stayed bridge, a pair of of dorsal funciculus is added at end bay beam-ends, making across suspension cable arrangement in side is in mal-distribution, with control
King-tower deformation, and then reduce the span centre time deformation across concrete girder greatly.
The technology employed by the present utility model is
One kind having dorsal funciculus continuous rigid frame partial cable-stayed bridge, it is characterised in that:
Including girder and two symmetrical bridge towers, bridge tower bottom is rigid structure pier；
Common suspension cable is symmetrically arranged between every bridge tower two sides and girder；
Rear dorsal funciculus is provided between every bridge tower and the side bridge end.
Every bridge tower end bay side is provided with common suspension cable and rear dorsal funciculus, and the other side is provided with common suspension cable, makes in side
Across suspension cable arrangement is in mal-distribution.
Girder is thickeied downwards at bridge tower position and is supported by rigid structure pier.
The utility model has the advantage that
The utility model, in the case where not increasing tower height and girder material utilization amount, is effectively increased by adding dorsal funciculus
The rigidity of partial cable-stayed bridge has expanded the application range of partial cable-stayed bridge to adapt to the requirement of high-speed railway, to by this
Structurally reasonable, better economy the long-span bridges of kind promote the use of in high-speed railway.
Detailed description of the invention
Fig. 1 has dorsal funciculus continuous rigid frame partial cable-stayed bridge structural map.
In figure, 1, bridge tower, 2, rigid structure pier, 3, girder, 4, common suspension cable, 5, rear dorsal funciculus.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to one kind dorsal funciculus continuous rigid frame partial cable-stayed bridge, in order to expand the applicable model of partial cable-stayed bridge
It encloses and span, increases its rigidity of structure to adapt to the requirement of high-speed railway, on the basis of conventional continuous rigid frame partial cable-stayed bridge,
A pair of of dorsal funciculus is added at end bay beam-ends.Specific structure are as follows:
The cable-stayed bridge includes girder 3 and two symmetrical bridge towers 1, and 1 bottom of bridge tower is rigid structure pier 2.Every 1 two sides of bridge tower
Common suspension cable 4 is symmetrically arranged between girder 3；Rear dorsal funciculus 5 is provided between every bridge tower 1 and the side bridge end.
Every 1 end bay side of bridge tower is provided with common suspension cable 4 and rear dorsal funciculus 5, and the other side is provided with common suspension cable 4, makes
Across suspension cable arrangement is in mal-distribution in side, to control king-tower deformation, and then reduces the span centre across concrete girder greatly and creeps
Deformation.
Girder 3 is thickeied downwards at 1 position of bridge tower and is supported by rigid structure pier 2.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (2)
1. one kind has dorsal funciculus continuous rigid frame partial cable-stayed bridge, it is characterised in that:
Including girder (3) and two symmetrical bridge towers (1), bridge tower (1) bottom is rigid structure pier (2)；
Common suspension cable (4) are symmetrically arranged between every bridge tower (1) two sides and girder (3)；
It is added rear dorsal funciculus (5) between every bridge tower (1) and the side bridge end, dorsal funciculus (5) after whole cable-stayed bridge is two total；
Every bridge tower (1) end bay side is provided with common suspension cable (4) and rear dorsal funciculus (5), and the other side is provided with common suspension cable
(4), making across suspension cable arrangement in side is in mal-distribution.
2. one kind according to claim 1 has dorsal funciculus continuous rigid frame partial cable-stayed bridge, it is characterised in that:
Girder (3) is thickeied downwards at bridge tower (1) position and is supported by rigid structure pier (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521566.2U CN209039950U (en) | 2018-04-13 | 2018-04-13 | One kind having dorsal funciculus continuous rigid frame partial cable-stayed bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820521566.2U CN209039950U (en) | 2018-04-13 | 2018-04-13 | One kind having dorsal funciculus continuous rigid frame partial cable-stayed bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209039950U true CN209039950U (en) | 2019-06-28 |
Family
ID=67028112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820521566.2U Active CN209039950U (en) | 2018-04-13 | 2018-04-13 | One kind having dorsal funciculus continuous rigid frame partial cable-stayed bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209039950U (en) |
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2018
- 2018-04-13 CN CN201820521566.2U patent/CN209039950U/en active Active
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