CN106351128A - Construction method of cable stayed bridge side span main beam - Google Patents
Construction method of cable stayed bridge side span main beam Download PDFInfo
- Publication number
- CN106351128A CN106351128A CN201611070272.4A CN201611070272A CN106351128A CN 106351128 A CN106351128 A CN 106351128A CN 201611070272 A CN201611070272 A CN 201611070272A CN 106351128 A CN106351128 A CN 106351128A
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- Prior art keywords
- construction
- pier
- girder
- bridge
- hanging basket
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- 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
- E01D11/04—Cable-stayed bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a construction method of a cable stayed bridge side span main beam. The method comprises the following steps that the construction of a cable stayed bridge main beam support pier is performed, wherein the support pier at least comprises a main tower and an auxiliary pier; a pier top beam section is cast on the top end of the support pier; a hanging basket is arranged on the pier top beam section; the hanging basket is used; in addition, the side span main beam extends in the bridge direction towards the extending edge by using the auxiliary pier as the center; the side span main beam is merged with a transition beam section pre-installed on the main tower so as to complete the side span main beam construction. By using the technical scheme disclosed by the invention, after the pier construction is completed, the hanging basket is used for performing construction on the bridge side span, so that the bridge side span construction is not limited by terrain; the installation of a great number of support frames is reduced; the construction work procedure is simple, convenient and fast; the construction speed can be accelerated; the engineering work period can be reduced.
Description
[technical field]
The present invention relates to field of bridge construction, the working procedure particularly to cable-stayed bridge end bay girder and construction method neck
Domain.
[background technology]
The end bay of bridge is in the spanning between abutment and bridge pier, and the construction of current bridge end bay girder is frequently with full hall
Support Method is carried out.Raft support method is to take at regular intervals, gathers and sets up, the construction method of passive scaffold；
Construction with brackets is to set up support at bridge location, pours pontic concrete on support, reaches dismounting mould after intensity after concrete
Plate and support.Construction with brackets has shortcomings, and it is big, long in time limit, to mountain area that it shows as working rack template consumption
Bridge and Gao Dun have significant limitation；These shortcomings make it should not use in the higher bridge construction of pier stud, also inapplicable
In the end bay work progress of relatively large cable-stayed bridge.Arrangement and method for construction provided by the present invention, cradle construction is applied to cable-stayed bridge
The construction of end bay girder, so that the construction of end bay girder is no longer influenced by the restriction of landform, and can achieve quickening end bay girder
Construction speed, the purpose of reduction of erection time.
Support edge across girder support pier stud compared to main pier, its diameter or width are generally individually less, and this also just means
, in the support pier stud opposing casting process of described end bay girder, the ability of end bay girder generation unbalanced load is relatively low, and by
During cradle construction, the unbalanced load producing during end bay girder pouring construction is required to propping up of described end bay girder
Support pier stud to carry, when therefore end bay girder being constructed using Hanging Basket, this also increases in work progress due to described
Unbalanced load on end bay girder and occur end bay girder beam body capsizing case to send out risk.Therefore end bay girder beam body is using extension
Basket method is applied man-hour requirement and is carried out the design of additional structure to the pier stud that supports of end bay girder, resists end bay girder beam body to improve it
The ability toppled.
[content of the invention]
It is an object of the invention to provide do not limited by landform during cable-stayed bridge end bay main girder construction, the construction party of quick construction
Method.
For realizing this purpose, the present invention adopts the following technical scheme that
The construction method of cable-stayed bridge end bay girder, it comprises the following steps:
Carry out the construction that cable-stayed bridge main-beam supports pier stud, described support pier stud at least includes king-tower and auxiliary pier；
Pour pier top beam section at described support pier capital end；
Hanging Basket is installed on described pier top beam section；
Using described Hanging Basket and centered on described auxiliary pier along along bridge to extending end bay girder；
By described end bay girder with described king-tower in advance mounted transition beam section joined the two sections of a bridge, etc, to complete end bay master
The construction of beam.
Further, described support pier stud is provided with the temporary anchoring structure for preventing girder from toppling, and it is included located at institute
State from the supporting construction of the vertical pressure of described continuous beam and being used for for opposing between support pier and described pier top beam section
The antidumping structure of the unbalanced moments producing in opposing girder casting process, described antidumping structure is included located at described support
Steel-pipe pile around pier and the fastening reinforcing bar connecting described steel-pipe pile and described pier top beam section.
Specifically, after the completion of support pier construction, set up support or the bracket for pouring described pier top beam section in its periphery
And formwork for placing；
Preferably, described Hanging Basket is provided with the anchor being anchored on girder and is anchored with Hanging Basket and described girder simultaneously
Flexible protective rope, for preventing described Hanging Basket from toppling.
Further, by described end bay girder and the step that mounted transition beam section is joined the two sections of a bridge, etc in advance on described king-tower
Suddenly, comprise the following steps:
Described Hanging Basket is utilized to set up the suspension bracket for installing closure section；Set up closure section concreting using described suspension bracket
Template；Pour closure section girder；After concrete strength reaches construction requirement, tensioning closure section girder along bridge to prestressed strand,
Complete closure section construction.
Specifically, described construction requirement reaches 90% design strength for concrete strength and the age of concrete is not less than 7 days.
Preferably, the position carrying out joining the two sections of a bridge, etc step is needed also to include described end bay girder and be arranged on the right of the access bridge on bank
Connect position.
Further, the position carrying out closure step is needed also to include the end bay master being extended based on two adjacent auxiliary piers
The docking location of beam.
Optionally, after utilizing described Hanging Basket to set up the suspension bracket for installing closure section, remove described Hanging Basket.
Compared with prior art, the present invention possesses following advantage:
The technical solution adopted in the present invention, by installing Hanging Basket, and based on described Hanging Basket to end bay in pier top beam section
Girder section construction, based on the advantage of cradle construction, not only makes the construction of end bay girder not affected by landform, with respect to full hall
Support Method, also can accelerate speed of application, save the construction period.
In addition, technical scheme provided by the present invention, the support pier stud of end bay girder is provided with temporary anchoring structure,
Described temporary anchoring structure can increase the described ability supporting pier stud to resist unbalanced load, can make the side using construction cradle
Across girder, there is in work progress higher working security, thus reducing the risk of construction safety accident.Further, this
The Hanging Basket that bright provided technical scheme is adopted is also equipped with strengthening the anchor structure of its resistance to capsizing, is further ensured that and applies
Work safety.
[brief description]
Fig. 1 is the distribution schematic diagram of the construction method bridge pier of cable-stayed bridge end bay girder of the present invention.
Fig. 2 is the structural representation of the construction method pier top beam section of cable-stayed bridge end bay girder of the present invention.
Fig. 3 is the structural representation before the construction method end bay continuous beam beam body closure of cable-stayed bridge end bay girder of the present invention.
Fig. 4 be cable-stayed bridge end bay girder of the present invention construction method carry temporary anchoring structure auxiliary pier structural representation
Figure.
[specific embodiment]
With exemplary embodiment, the present invention is further described below in conjunction with the accompanying drawings, identical label wherein in accompanying drawing
All refer to identical part.Additionally, if it is known that the detailed description of technology is for illustrating the invention is characterized in that unnecessary
, then omitted.
Embodiment one
Refer to Fig. 1-Fig. 3, it illustrates the construction procedure of cable-stayed bridge end bay girder provided by the present invention, concrete bag
Include:
S1, carries out the construction that cable-stayed bridge main-beam supports pier stud, and described support pier stud at least includes king-tower and auxiliary pier；
As Fig. 1, the support pier stud of cable-stayed bridge end bay girder includes king-tower 5, auxiliary pier 1 and abutment 6, and wherein auxiliary pier adopts
Thin-wall Hollow Pier, half range bridge pier is as box-shaped uiform section.Before the construction of described king-tower 5, auxiliary pier 1 and abutment 6, also include each
The bearing platform construction step of support pier stud, described each cushion cap supporting pier stud and support pier stud are all completed by the way of cast-in-place construction.
S2, pours pier top beam section at described support pier capital end；
As shown in Fig. 2 described support pier capital end all has pier top beam section by the way of concrete cast-in-situ.Wherein, bridge
Platform 6 and king-tower 5 adopt raft support method to construct, main pylon pier side stand 52, and abutment pier side stand 61 specifically comprises the following steps that
Set up support, set up scaffold stand in the pier side of abutment and king-tower respectively；
Installation form, sets up the formwork for placing of pier top beam section using described scaffold stand；
Pour, using concrete cast-in-situ construction casting concrete in described formwork for placing；
Maintenance, the concrete pouring is carried out maintenance until concrete strength reach 90% design strength grade point and
The age of concrete be not less than 7 days when, this beam section direction across bridge of tensioning and along bridge to prestressed strand, complete applying of pier top beam section
Work.
Wherein, the pier top beam section that abutment pier side is poured is access bridge 62, and the pier top beam section that main pylon pier side is poured is transition
Bridge section 53.
The construction of auxiliary pier pier top beam section adopts bracket to construct, and specifically comprises the following steps that
Set up bracket, in suitable bridge to using auxiliary pier pier shaft and pier shaft accessory structure (as the steel-pipe pile of temporary anchoring structure)
Set up support, outside direction across bridge, in the form of shelf bracket, inner side diaphragm plate, in the form of bearing support, pushes up construction bracket
Plate is in the form of full framing；
Installation form, sets up the formwork for placing of pier top beam section using described bracket；
Pour, using concrete cast-in-situ construction casting concrete in described formwork for placing；
Maintenance, the concrete pouring is carried out maintenance until concrete strength reach 90% design strength grade point and
The age of concrete be not less than 7 days when, this beam section direction across bridge of tensioning and along bridge to prestressed strand, complete applying of pier top beam section
Work.
S3, installs Hanging Basket in described pier top beam section；
Hanging Basket 3 is arranged in auxiliary pier pier top beam section, and the primary structure of described Hanging Basket includes: upper front beam, upper middle cross beam,
Bottom basket system, suspension system, main truss, rear anchor system, running gear, template system etc..Hanging Basket is applied to applying of end bay girder
In man-hour, need to carry out enhanced anchor measure to it, prevent Hanging Basket from capsizing case occurring in work progress.Enhanced anchoring is arranged
Apply and may is that increase lifting anchor in the rear anchor system of described Hanging Basket, perpendicular in described lifting anchor and girder
To presstressed reinforcing steel anchoring to provide the prestressing force strengthening Hanging Basket resistance to capsizing；Or it is another to be connected to main truss cradle both sides for one end
End is connected to the flexible protective rope in girder beam body；Combination again or for both the above structure.The assembled step of described Hanging Basket is:
Surveying and locating-laying track bearing beam and track-installation main truss-installation harness system-installation bottom basket system.
S4, using described Hanging Basket and centered on described auxiliary pier along along bridge to extending end bay girder；
Using described Hanging Basket, segmentation pours girder beam body, and the concrete strength that each section of beam body is poured reaches 90% design
When strength grade value and the age of concrete are not less than 7 days, the prestressed strand of this beam section of tensioning, repeats above-mentioned operational procedure, directly
Complete to the beam section construction adjacent with closure section beam section.
S5, by described end bay girder with described king-tower in advance mounted transition beam section joined the two sections of a bridge, etc, to complete side
Construction across girder.
The closure of closure section can be constructed using Hanging Basket method, also can set up suspension bracket by Hanging Basket above closure section, adopt
Carried out with suspension bracket method.During using hanging frame method construction, needing to carry out setting up of suspension bracket using Hanging Basket, hanging the concrete steps of frame method construction
For:
Set up suspension bracket, utilize described Hanging Basket to set up the suspension bracket for installing closure section；
Set up template, set up closure section concrete-pouring template using described suspension bracket；
Pour, pour closure section girder；
Curing concrete and stretch-draw prestressing force steel bundle, after concrete strength reaches construction requirement, tensioning closure section girder is suitable
Bridge, to the prestressed strand with direction across bridge, completes closure section construction.
Wherein, carried out before closing construction using suspension bracket method, for ease of construction, after can terminating setting up foot rest, by described extension
Basket is removed.Described suspension bracket method closing construction can be used for the closing construction of end bay girder between auxiliary pier, also can be used for auxiliary pier and bridge
Girder closing construction between platform, also can be used for the girder closing construction between auxiliary pier and king-tower.
Embodiment two
Fig. 4 is that in Fig. 2, a part has additional the auxiliary pier of temporary anchoring structure and the enlarged drawing of pier top beam section.As Fig. 4 institute
Show, in the step of embodiment one auxiliary pier pier construction, also including arranging prevents main girder construction process middle girder from toppling
The step of temporary anchoring structure 12, wherein, described temporary anchoring structure 12 includes: located at described support pier and described pier top beam section
Between resist in girder casting process and produce from the supporting construction and being used for of the vertical pressure of described continuous beam for opposing
Unbalanced moments antidumping structure, described antidumping structure includes steel-pipe pile around described support pier and connects institute
State steel-pipe pile and the fastening reinforcing bar of described pier top beam section.
Described temporary anchoring structure is for preventing from producing imbalance by continuous beam unbalanced load to box beam center in construction
Moment of flexure makes the risk that beam body is toppled.Temporary anchoring structure is made up of steel-pipe pile, fastening reinforcing bar and temporary support, its form and principle
For: the anchoring temporarily of auxiliary pier and beam body is that " soft outward " is main in the form of the anchoring of " soft outside but hard inside " vivo and vitro combines
Refer to " pier side steel pipe+fastening reinforcing bar ", " interior firm " refers mainly to the temporary support of auxiliary pier pier top；The pier top temporary support master of " interior firm "
It is used for resisting the pressure of continuous beam vertical direction；" the pier side steel pipe+fastening reinforcing bar " of " soft outward " is mainly used in resisting continuous beam
The unbalanced moment that casting process produces.When continuous beam beam body is subject to unbalanced load it may appear that corresponding unbalanced moment,
The steel-pipe pile being now in toppling direction is pressurized and produce counter-force, thus forming the moment of flexure stopping that beam body is toppled, the steel of its offside
Pile tube is subject to pulling force, also can produce the moment of flexure stopping that beam body is toppled, both are antidumping moment of flexure, can be used for resisting described continuous beam
The unbalanced moment producing in beam body casting process.Thus preventing auxiliary pier master when cable-stayed bridge end bay girder adopts cradle construction
The toppling of beam.
Although having been illustrated with some exemplary embodiments of the present invention above, those skilled in the art will manage
Solution, in the case of the principle without departing from the present invention or spirit, can make a change to these exemplary embodiments, the present invention's
Scope is limited by claim and its equivalent.
Claims (9)
1. the construction method of cable-stayed bridge end bay girder is it is characterised in that it comprises the following steps:
Carry out the construction that cable-stayed bridge main-beam supports pier stud, described support pier stud at least includes king-tower and auxiliary pier；
Pour pier top beam section at described support pier capital end；
Hanging Basket is installed on described pier top beam section；
Using described Hanging Basket and centered on described auxiliary pier along along bridge to extending end bay girder；
By described end bay girder with described king-tower in advance mounted transition beam section joined the two sections of a bridge, etc, to complete end bay girder
Construction.
2. construction method according to claim 1 is it is characterised in that described support pier stud is provided with for preventing girder from inclining
The temporary anchoring structure covering, it include between described support pier and described pier top beam section for opposing from described continuous
The supporting construction of the vertical pressure of beam and the antidumping structure for resisting the unbalanced moments producing in girder casting process, institute
State the steel-pipe pile that antidumping structure includes around described support pier and connect the tight of described steel-pipe pile and described pier top beam section
Gu reinforcing bar.
3. construction method according to claim 1 is it is characterised in that after the completion of support pier construction, set up use in its periphery
In the support pouring described pier top beam section or bracket and formwork for placing.
4. construction method according to claim 1 is it is characterised in that described Hanging Basket is provided with the anchoring dress being anchored on girder
The flexible protective rope put and anchor with Hanging Basket and described girder simultaneously, for preventing described Hanging Basket from toppling.
5. construction method according to claim 1 it is characterised in that by described end bay girder with described king-tower in advance
The step that mounted transition beam section is joined the two sections of a bridge, etc, comprises the following steps:
Described Hanging Basket is utilized to set up the suspension bracket for installing closure section；Set up closure section concreting mould using described suspension bracket
Plate；Pour closure section girder；After concrete strength reaches construction requirement, tensioning closure section girder along bridge to prestressed strand, complete
Become closure section construction.
6. construction method according to claim 5 is it is characterised in that described construction requirement reaches 90% for concrete strength
Design strength and the age of concrete are not less than 7 days.
7. construction method according to claim 5 it is characterised in that need carry out joining the two sections of a bridge, etc step position also include described
End bay girder and be arranged on bank access bridge docking location.
8. construction method according to claim 5 is it is characterised in that need the position carrying out joining the two sections of a bridge, etc step also to include being based on
The docking location of the end bay girder that two adjacent auxiliary piers are extended.
9. construction method according to claim 5 is it is characterised in that utilize described Hanging Basket to set up for installing closure section
After suspension bracket, remove described Hanging Basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070272.4A CN106351128B (en) | 2016-11-28 | 2016-11-28 | The construction method of cable-stayed bridge end bay girder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611070272.4A CN106351128B (en) | 2016-11-28 | 2016-11-28 | The construction method of cable-stayed bridge end bay girder |
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| CN106351128A true CN106351128A (en) | 2017-01-25 |
| CN106351128B CN106351128B (en) | 2019-04-09 |
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| CN201611070272.4A Active CN106351128B (en) | 2016-11-28 | 2016-11-28 | The construction method of cable-stayed bridge end bay girder |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938517A (en) * | 2017-10-01 | 2018-04-20 | 中国路桥工程有限责任公司 | A kind of cable-stayed bridge prestressed concrete beam ring anchor construction method |
| CN114293414A (en) * | 2021-12-03 | 2022-04-08 | 中铁第四勘察设计院集团有限公司 | Viaduct transition section structure and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003253620A (en) * | 2002-03-06 | 2003-09-10 | Kurosawa Construction Co Ltd | Cable stayed bridge and its construction method |
| CN101424072A (en) * | 2008-11-18 | 2009-05-06 | 中铁一局集团有限公司 | Counter weight control construction method for large span un-symmetric segment stayed-cable bridge |
| CN101619562A (en) * | 2009-07-21 | 2010-01-06 | 中交第二公路勘察设计研究院有限公司 | Open web type continuous steel bridge structure and buckling, hanging and pouring method of cantilever |
| CN102296525A (en) * | 2011-05-31 | 2011-12-28 | 中铁大桥勘测设计院有限公司 | Support system mixed combined beam cable-stayed bridge and construction method thereof |
| CN104264592A (en) * | 2014-10-14 | 2015-01-07 | 中国水利水电第四工程局有限公司 | Construction method of continuous beam |
-
2016
- 2016-11-28 CN CN201611070272.4A patent/CN106351128B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003253620A (en) * | 2002-03-06 | 2003-09-10 | Kurosawa Construction Co Ltd | Cable stayed bridge and its construction method |
| CN101424072A (en) * | 2008-11-18 | 2009-05-06 | 中铁一局集团有限公司 | Counter weight control construction method for large span un-symmetric segment stayed-cable bridge |
| CN101619562A (en) * | 2009-07-21 | 2010-01-06 | 中交第二公路勘察设计研究院有限公司 | Open web type continuous steel bridge structure and buckling, hanging and pouring method of cantilever |
| CN102296525A (en) * | 2011-05-31 | 2011-12-28 | 中铁大桥勘测设计院有限公司 | Support system mixed combined beam cable-stayed bridge and construction method thereof |
| CN104264592A (en) * | 2014-10-14 | 2015-01-07 | 中国水利水电第四工程局有限公司 | Construction method of continuous beam |
Non-Patent Citations (3)
| Title |
|---|
| 刘先涛: "连续箱梁体外临时固结技术", 《交通世界》 * |
| 杨奉举: "泉州晋江大桥斜拉桥主梁施工", 《桥梁建设》 * |
| 黄清: "韩国突山二桥的设计与施工", 《世界桥梁》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938517A (en) * | 2017-10-01 | 2018-04-20 | 中国路桥工程有限责任公司 | A kind of cable-stayed bridge prestressed concrete beam ring anchor construction method |
| CN107938517B (en) * | 2017-10-01 | 2019-09-24 | 中国路桥工程有限责任公司 | A kind of cable-stayed bridge prestressed concrete beam ring anchor construction method |
| CN114293414A (en) * | 2021-12-03 | 2022-04-08 | 中铁第四勘察设计院集团有限公司 | Viaduct transition section structure and construction method thereof |
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| Publication number | Publication date |
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| CN106351128B (en) | 2019-04-09 |
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