CN207891718U - A kind of New Cable-stayed Bridge - Google Patents
A kind of New Cable-stayed Bridge Download PDFInfo
- Publication number
- CN207891718U CN207891718U CN201820106183.9U CN201820106183U CN207891718U CN 207891718 U CN207891718 U CN 207891718U CN 201820106183 U CN201820106183 U CN 201820106183U CN 207891718 U CN207891718 U CN 207891718U
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- CN
- China
- Prior art keywords
- girder
- circular curve
- arch
- cable
- displacement
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 20
- 239000000725 suspension Substances 0.000 claims abstract description 18
- 238000010276 construction Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
Abstract
The utility model discloses a kind of New Cable-stayed Bridge, including girder and suspension cable, girder is equipped with camber, and default arch circular curve is formed, forming displacement with the connecting pin of girder on suspension cable encircles circular curve, and suspension cable is connect with girder, so that girder is reached initial camber, and forms initial arch circular curve.The utility model encircles circular curve with displacement by default arch circular curve and is superimposed, and so that girder is obtained initial arch circular curve, girder can be made to be in more rational stress, simple in structure, easy for construction, quick, the stability of girder is good.
Description
Technical field
The utility model is related to cable-stayed bridges, and in particular to a kind of New Cable-stayed Bridge.
Background technology
Bridge structure will generate vertical displacement under load action, to ensure that bridge is comfortable in the driving at bridge operation state
Property and safety, girder need to be arranged to encircle in advance, general setting method be by vertical displacement it is oppositely arranged, to offset under load action
Displacement, i.e. girder leveling.For cable-stayed bridge, girder is generally linear (i.e. initial curve is linear) equipped with vertical curve, and girder exists
It is generated under load action to bottom offset, girder leveling (it is downward under load use generally to be offset by girder by suspension cable pulling force
Displacement), it is zero to make the girder displacement of pontic.And for large span stayed-cable bridge, girder relative rigidity smaller, structure stress are more multiple
It is miscellaneous, Liangping is adjusted by original suspension cable pulling force and using common pre- arch setting method, it is ideal to be difficult to realize girder
Camber is linear, is difficult to adjust the rational stress of girder.
Therefore, there is stress difference and be difficult to reach ideal camber in existing cable-stayed bridge.
Utility model content
Technical problem to be solved in the utility model is stress difference present in existing cable-stayed bridge and is difficult to reach
The problem of to ideal camber.
In order to solve the above-mentioned technical problem, technical solution used by the utility model is to provide a kind of New Cable-stayed Bridge,
Including girder and suspension cable, the girder is equipped with camber, and forms default arch circular curve, on the suspension cable with the girder
Connecting pin form displacement and encircle circular curve, the suspension cable connect with the girder, and the girder is made to reach initial camber, and shape
At initial arch circular curve.
In the above scheme, take N number of point along the longitudinal direction of the girder, absolute altitude of N number of point on default arch circular curve be H1,
H2, H3 ... Hi ... Hn, the absolute altitude on displacement arch circular curve is D1, D2, D3 ... Di ... Dn, the absolute altitude on initially arch circular curve
For Z1, Z2, Z3 ... Zi ... Zn, Zi=Hi+Di.
In the above scheme, the radius for presetting arch circular curve is R2, and the radius that circular curve is encircleed in displacement is R1, and initial arch circle is bent
The radius of line is R0, R0=R2+R1.
The utility model encircles circular curve with displacement by default arch circular curve and is superimposed, and girder is made to obtain initial arch circular curve,
Girder can be made to be in more rational stress, simple in structure, easy for construction, quick, the stability of girder is good, can get reason
Think for degree.
Description of the drawings
Fig. 1 is the schematic diagram of the utility model middle girder and suspension cable；
Fig. 2 is the linear schematic diagram that arch circular curve is preset in the utility model；
Fig. 3 is the linear schematic diagram of drawing arch circular curve in the utility model；
Fig. 4 is the linear schematic diagram for initially encircleing circular curve in the utility model.
Specific implementation mode
The utility model is described in detail with reference to the accompanying drawings of the specification.
As shown in figures 1-4, the utility model provides a kind of New Cable-stayed Bridge, including suspension cable 10 and girder 20, girder
20 are equipped with camber, and form default arch circular curve 30.Displacement is formed with the connecting pin of girder 20 encircle circular curve on suspension cable 10
40.Suspension cable 10 is connect with girder 20, and girder 20 is made to reach initial camber, and forms initial arch circular curve 50.
Initial arch circular curve 50 is formed by stacking by default arch circular curve 30 and displacement arch circular curve 40.
N number of point is taken along the longitudinal direction of girder 20, absolute altitude of N number of point on default arch circular curve 30 is H1, H2, H3 ... Hi ...
Hn, displacement arch circular curve 40 on absolute altitude be D1, D2, D3 ... Di ... Dn, initially arch circular curve 50 on absolute altitude be Z1,
Z2, Z3 ... Zi ... Zn, Zi=Hi+Di.
The radius of default arch circular curve 30 is R2, and the radius that circular curve 40 is encircleed in displacement is R1, initial to encircle the half of circular curve 50
Diameter is R0, R0=R1+R2.
Above-mentioned, Z1, Z2, Z3 ... Zi ... Zn are the designed elevation of 20 each point of girder, and R0 is the design curve radius of girder 20,
Ideal camber curve is can get by superposition.
Building for the utility model cable-stayed bridge includes the following steps：
Camber is arranged in step 1 on girder 20, and forms default arch circular curve 30；
Suspension cable 10 is arranged in step 2, and the connecting pin of suspension cable 10 and girder 20 is made to form displacement arch circular curve 40；
Step 3 makes suspension cable 10 be connect with girder 20, and displacement arch circular curve 40 is made to be superimposed with default arch circular curve 30, and
Initial arch circular curve 50 is formed on girder 20.
The setting to 20 camber of girder can be completed through the above steps, simply dexterously realize that girder 20 preferably encircles
It spends linear, so that girder 20 is in rational stress, this method is applied in the Changjiang River Highway Bridge of Wuhan green hill, and is obtained
Good effect.
The utility model encircles circular curve with displacement by default arch circular curve and is superimposed, and girder is made to obtain initial arch circular curve,
Girder can be made to be in more rational stress, simple in structure, easy for construction, quick, the stability of girder is good, can get reason
Think for degree.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn that under the enlightenment of the utility model
Obtained structure change, it is every that there is same or similar technical solution with the utility model, each fall within the guarantor of the utility model
Within the scope of shield.
Claims (3)
1. a kind of New Cable-stayed Bridge, including girder and suspension cable, which is characterized in that the girder is equipped with camber, and is formed pre-
Displacement is formed with the connecting pin of the girder encircle circular curve, the suspension cable and the master if encircleing circular curve, on the suspension cable
Beam connects, and the girder is made to reach initial camber, and forms initial arch circular curve.
2. a kind of New Cable-stayed Bridge according to claim 1, which is characterized in that take N number of point, N along the longitudinal direction of the girder
Absolute altitude of a point on default arch circular curve is H1, H2, H3 ... Hi ... Hn, the absolute altitude on displacement arch circular curve be D1, D2,
D3 ... Di ... Dn, the absolute altitude on initially arch circular curve are Z1, Z2, Z3 ... Zi ... Zn, Zi=Hi+Di.
3. a kind of New Cable-stayed Bridge according to claim 1, which is characterized in that the radius of default arch circular curve is R2, position
The radius for moving arch circular curve is R1, and the initial radius for encircleing circular curve is R0, R0=R2+R1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106183.9U CN207891718U (en) | 2018-01-22 | 2018-01-22 | A kind of New Cable-stayed Bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820106183.9U CN207891718U (en) | 2018-01-22 | 2018-01-22 | A kind of New Cable-stayed Bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207891718U true CN207891718U (en) | 2018-09-21 |
Family
ID=63545554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820106183.9U Active CN207891718U (en) | 2018-01-22 | 2018-01-22 | A kind of New Cable-stayed Bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207891718U (en) |
-
2018
- 2018-01-22 CN CN201820106183.9U patent/CN207891718U/en active Active
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