CN108570937B - A kind of push construction method that cable-stayed bridge main span is set up - Google Patents
A kind of push construction method that cable-stayed bridge main span is set up Download PDFInfo
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- CN108570937B CN108570937B CN201810466756.3A CN201810466756A CN108570937B CN 108570937 B CN108570937 B CN 108570937B CN 201810466756 A CN201810466756 A CN 201810466756A CN 108570937 B CN108570937 B CN 108570937B
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- girder
- tower
- king
- main span
- span
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
Abstract
This application discloses the push construction method that a kind of cable-stayed bridge main span is set up, include the following steps: that S1, girder rely on slideway, from access bridge to main span pushing tow；S2, when girder pushing tow is to when being more than king-tower and being no more than the position of main span span centre, king-tower both ends erecting process beam and hang rail system, while suspension cable being connect with technique beam, and technique beam and king-tower are locked in king-tower position in vertical and horizontal；Hang rail system connection girder and technique beam；S3, girder hang over the lower section of technique beam by hanging rail system, continue toward main span span centre direction pushing tow；S4, step S2 and S3 are repeated, until the girder main span at both ends closes up connection；S5, it suspension cable is gradually moved shifts on girder；S6, step S5 carry out while, or complete after, remove moved changed suspension cable technique beam and hang rail system.Present application addresses the problem of building Temporary Piers is needed, being able to achieve just can complete main span erection without Temporary Piers.
Description
Technical field
This application involves field of bridge construction, in particular to a kind of construction method of cable-stayed bridge main span erection.
Background technique
Across footpath maximum one is interrupted across referred to as main span positioned at bridge, at present in suspension cable bridge construction, builds main span
When, it needs the girder of main span from the two sides in river toward river center iterative method, that is, from access bridge section gradually to master
Span promotes.When access bridge section, access bridge pier stud can be ridden in, but when pushing tow to main span, because main span
Span is too big, so needing to build multiple Temporary Piers when closing up in river in main span to assist completing the installation of girder.But
It is that there are following drawbacks for Temporary Piers:
1, the at high cost of Temporary Piers is built；
2, it after main span of constructing, needs to remove Temporary Piers, causes to waste；
3, in the construction process, Temporary Piers can stop river, and ship is caused to be difficult to pass through, and all bring to ship and Temporary Piers
Security risk；
4, it is certain in special circumstances, main span lower part can not build Temporary Piers, such as valley.
Summary of the invention
For the above-mentioned prior art, technical problem to be solved by the invention is to provide one kind just can without building Temporary Piers
Complete the method that main span is set up.
In order to solve the above technical problems, the present invention provides a kind of push construction method that cable-stayed bridge main span is set up, it is specific to wrap
Include following steps:
S1: girder relies on the slideway on access bridge pier stud, from access bridge to main span pushing tow；
S2: when girder pushing tow to be more than king-tower and be no more than main span span centre position when, in the both ends erecting process of king-tower
Beam and extension rail system, while suspension cable being connect with technique beam, and technique beam and king-tower are locked in king-tower in vertical and horizontal
Position；Rail system connection girder and technique beam are hung, girder is vertically moved relative to technique beam；
S3: girder hangs over the lower section of technique beam by hanging rail system, continues toward main span span centre direction pushing tow；
S4: repeating step S2 and S3, until the girder main span at both ends closes up connection；
S5: suspension cable is gradually moved and is shifted on girder；
S6: it while step S5 is carried out, or after completion, is removed from technique beam both ends toward the direction of king-tower 2
It moves the technique beam for having changed suspension cable and hangs rail system.
Preferably, the step S2 further comprises: technique beam is symmetricly set on king-tower both ends.
Preferably, the step S3 further comprises the step of locking girder and technique beam relative position.
Preferably, the step S3 further comprises the step of limiting girder transverse shifting.
Preferably, while further include that the step S6 is carried out, or after the completion, oblique pull is being installed additional between main tower and main girder
The step of rope.
Preferably, while further include that the step S6 is carried out, or after the completion, the step of unavailable suspension cable is removed
Suddenly.
The push construction method that cable-stayed bridge main span provided by the invention is set up has construction safety, save the cost, operation side
The obvious advantages such as just flexible, applied widely solve and need to set up Temporary Piers bring high cost when main span is closed up, stop river
The problems such as road, high risk.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the flow diagram of one embodiment of the present invention；
Fig. 2 is the slideway that girder relies on access bridge pier stud, schematic diagram when from access bridge to main span pushing tow；
Fig. 3 is when girder pushing tow to schematic diagram when being more than king-tower and being no more than the position of main span span centre；
Fig. 4 is the schematic diagram of the both ends erecting process beam and extension rail system in king-tower；
Fig. 5 is schematic diagram of two girders after span centre closes up.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
As Figure 1-Figure 5, the present invention provides a kind of pushing method that suspension cable main span is set up, and its step are as follows:
S1: girder 3 relies on the slideway on access bridge pier stud 1, from access bridge to main span pushing tow.Access bridge refers to the road from river bank
To the changeover portion between king-tower.The lower part of access bridge is equipped with one or more access bridge pier stud 1, is equipped with slideway at the top of access bridge pier stud 1,
Main span is middle section across footpath maximum one across between two king-towers 2.As shown in Fig. 2, girder 3 rides on slideway, gradually to master
Across pushing tow, that is, toward 2 direction pushing tow of king-tower.
S2: as shown in figure 3, when 3 pushing tow of girder to be more than king-tower 2 and be no more than main span span centre position when, in king-tower 2
Both ends erecting process beam 4 and hang rail system 5, as shown in figure 4, suspension cable 6 is connect with technique beam 4 simultaneously, and by technique beam 4 and
King-tower 2 is locked in 2 position of king-tower in vertical and horizontal.Hang rail system 5 and connect girder 3 and technique beam, enable girder 3 relative to
Technique beam longitudinal movement.As shown in figure 3, in this step, pushing tow has been more than king-tower 2 to the position of main span to girder 3, and
Main span center is not reached.It, can not be directly by the master of the direct pushing tow of method of step S1 to both ends because the span of main span is larger
Beam 3 closes up.In traditional method, need to set up Temporary Piers at this time between two king-towers 2, Temporary Piers are equipped with slideway, main
Beam 3 relies on Temporary Piers to continue pushing tow advance, until two edge-beams 3 close up.And benefit of the invention is not needing construction temporarily
Pier, but in the both ends erecting process beam 4 of king-tower 2 and hang rail system 5.Fig. 4 illustrates the construction schematic diagram of river unilateral side, technique
Beam is located at the top of girder 3, and effect is for hanging girder 3, and extension rail system 5 is used to Joining Technology beam 4 and girder 3, so that
Girder 3 can be vertically moved relative to technique beam 4.Technique beam 4 is shaken in order to prevent, by technique beam 4 and king-tower 2 in vertical and horizontal
It is locked in 2 position of king-tower, that is, is fixed in in-plane, short transverse is not fixed, and allows to adjust by suspension cable 6
The linear and amount of deflection of girder 3.One end of suspension cable 6 is connect with king-tower 2, and the other end is connect with technique beam 4, thus by technique beam 4
It slings, girder 3 is enabled to hang over the lower section of technique beam 4, continue toward main span span centre direction pushing tow.
S3: girder 3 hangs over the lower section of technique beam 4 by hanging rail system 5, continues toward main span span centre direction pushing tow.Main span across
In center i.e. between two king-towers 2 enable girder 3 to hang over technique beam because there is the technique beam 4 of top as suspension
On 4, continue to promote toward span centre direction.
S4: repeating step S2 and S3, until the girder 3 at both ends closes up connection in main span span centre, as shown in Figure 5.Constantly weight
Multiple step S2 constantly extends technique beam 4 at the both ends of king-tower 2 and hangs rail system 5, then repeatedly step S3, and girder 3 is continuous past
Span centre promotes, until closing up.
S5: suspension cable 6 is gradually moved and is shifted on girder 3.It is final to need because technique beam 4 is interim auxiliary construction facility
It removes.Suspension cable 6 is removed by rope at this time, shifting shifts on girder 3, and the symmetrically synchronous progress of 2 both sides of king-tower.
S6: it while step S5 is carried out, or after completion, is removed from technique beam both ends toward the direction of king-tower 2
It moves the technique beam 4 for having changed suspension cable 6 and hangs the stream that rail system 5(Fig. 1 illustrated in step S5 completion and then carried out step S6
Journey figure).It, can be after the completion of shifting in step s 5 changes jobs, disposably at this time, it may be necessary to by technique beam 4 and hang rail system 5 and remove
It removes, can also be when step S5 be carried out, a part has been changed in shifting, just removes one from technique beam both ends toward the direction of king-tower 2
Part.
The push construction method that cable-stayed bridge main span provided by the invention is set up has construction safety, save the cost, operation side
The obvious advantages such as just flexible, applied widely solve and need to set up Temporary Piers bring high cost when main span is closed up, stop river
The problems such as road, high risk.
As the further preferred of present embodiment, the step S2 further can also include: that technique beam 4 is symmetrical arranged
At 2 both ends of king-tower.Both ends are symmetrical arranged, and it is flat to the stress balance of two sides and the stress of technique beam 3 along bridge to be conducive to king-tower 2
Weighing apparatus.
As the further preferred of present embodiment, the step S3 further can also include locking girder 3 and technique
The step of 4 relative position of beam.This step can lock the position of girder 3, and can control the rate travel of girder 3.
As the further preferred of present embodiment, the step S3 further can also include limiting girder 3 laterally to move
Dynamic step.This step limits the lateral displacement of girder 3, prevents 3 deviation of girder and derailing.
As the further preferred of present embodiment, while can also including that the step S6 is carried out, or after the completion,
The step of installing suspension cable 6 additional between king-tower 2 and girder 3.It changes during rope, utilizes original suspension cable 6 as far as possible, if any inadequate,
It then needs to increase newly.
As the further preferred of present embodiment, while can also including that the step S6 is carried out, or after the completion,
The step of removing unavailable suspension cable 6.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. the push construction method that a kind of cable-stayed bridge main span is set up, which comprises the steps of:
S1: girder relies on the slideway on access bridge pier stud, from access bridge to main span pushing tow；
S2: when girder pushing tow to be more than king-tower and be no more than main span span centre position when, king-tower both ends erecting process beam and
Rail system is hung, while suspension cable being connect with technique beam, and technique beam and king-tower are locked in king-tower position in vertical and horizontal；
Rail system connection girder and technique beam are hung, girder is vertically moved relative to technique beam；
S3: girder hangs over the lower section of technique beam by hanging rail system, continues toward main span span centre direction pushing tow；
S4: repeating step S2 and S3, until the girder main span at both ends closes up connection；
S5: suspension cable is gradually moved and is shifted on girder；
S6: while step S5 is carried out, or after completion, the direction from technique beam both ends toward king-tower, which is gradually removed, have been moved
It has changed the technique beam of suspension cable and has hung rail system.
2. push construction method according to claim 1, which is characterized in that the step S2 further comprises: technique beam
It is symmetricly set on king-tower both ends.
3. push construction method according to claim 1, feature exist, the step S3 further comprises locking girder
The step of with technique beam relative position.
4. push construction method according to claim 1, which is characterized in that the step S3 further comprises limiting girder
The step of transverse shifting.
5. push construction method according to claim 1, which is characterized in that while further including that the step S6 is carried out,
Or after the completion, the step of installing suspension cable additional between main tower and main girder.
6. push construction method according to claim 1, which is characterized in that while further including that the step S6 is carried out,
Or after the completion, the step of removing unavailable suspension cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466756.3A CN108570937B (en) | 2018-05-16 | 2018-05-16 | A kind of push construction method that cable-stayed bridge main span is set up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810466756.3A CN108570937B (en) | 2018-05-16 | 2018-05-16 | A kind of push construction method that cable-stayed bridge main span is set up |
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| Publication Number | Publication Date |
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| CN108570937A CN108570937A (en) | 2018-09-25 |
| CN108570937B true CN108570937B (en) | 2019-08-20 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072474A (en) * | 1989-07-12 | 1991-12-17 | Dilger Walter H | Bridge construction |
| FR2693492A1 (en) * | 1992-07-10 | 1994-01-14 | Dumez | Cable stayed bridge - comprises tower(s) with cables extending from top(s) to deck and longitudinal steel beams with deck slabs spanning between |
| CN101195987A (en) * | 2007-12-27 | 2008-06-11 | 中交第二航务工程局有限公司 | Stayed-cable bridge midspan incremental launching auxiliary closure technique and beam segment pulling and shifting composite set |
| CN103821075A (en) * | 2013-12-23 | 2014-05-28 | 浙江省交通科学研究院 | Large-span cable-stayed highway steel bridge |
| CN104294747A (en) * | 2014-09-23 | 2015-01-21 | 同济大学 | Double-tower hybrid beam cable-stayed bridge system and construction method thereof |
-
2018
- 2018-05-16 CN CN201810466756.3A patent/CN108570937B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072474A (en) * | 1989-07-12 | 1991-12-17 | Dilger Walter H | Bridge construction |
| FR2693492A1 (en) * | 1992-07-10 | 1994-01-14 | Dumez | Cable stayed bridge - comprises tower(s) with cables extending from top(s) to deck and longitudinal steel beams with deck slabs spanning between |
| CN101195987A (en) * | 2007-12-27 | 2008-06-11 | 中交第二航务工程局有限公司 | Stayed-cable bridge midspan incremental launching auxiliary closure technique and beam segment pulling and shifting composite set |
| CN103821075A (en) * | 2013-12-23 | 2014-05-28 | 浙江省交通科学研究院 | Large-span cable-stayed highway steel bridge |
| CN104294747A (en) * | 2014-09-23 | 2015-01-21 | 同济大学 | Double-tower hybrid beam cable-stayed bridge system and construction method thereof |
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| CN108570937A (en) | 2018-09-25 |
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Effective date of registration: 20181101 Address after: 410000 Changsha, Hunan, Yuelu District, Yuelu District, Jiajia street, Jiaxing Road, 1502 yuan, Applicant after: Changsha Hui Bridge Technology Co., Ltd. Address before: 410000 Changsha, Hunan, Yuelu District, Yuelu District, Jiajia street, Jiaxing Road, 1502 yuan, Applicant before: He Ning |
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Effective date of registration: 20190722 Address after: 410205 Room 307 Card-1329, Building A, Lugu Business Center, 199 Lulong Road, Changsha High-tech Development Zone, Hunan Province (Cluster Registration) Applicant after: Hunan wisdom Engineering Technology Co., Ltd. Address before: 410000 Jiahua Garden, Gufeng Road, Xianjiahu Street, Yuelu District, Changsha City, Hunan Province, 6 buildings 1502 Applicant before: Changsha Hui Bridge Technology Co., Ltd. |
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