CN106968161B - A kind of oblique pull foot bridge beam slab and building method - Google Patents
A kind of oblique pull foot bridge beam slab and building method Download PDFInfo
- Publication number
- CN106968161B CN106968161B CN201710351141.1A CN201710351141A CN106968161B CN 106968161 B CN106968161 B CN 106968161B CN 201710351141 A CN201710351141 A CN 201710351141A CN 106968161 B CN106968161 B CN 106968161B
- Authority
- CN
- China
- Prior art keywords
- prefabricated subsection
- prefabricated
- subsection
- convex edge
- support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
-
- 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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/28—Concrete reinforced prestressed
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of oblique pull foot bridge beam slab and building method, which is formed by connecting by multiple prefabricated subsections.The prefabricated subsection includes end prefabricated subsection, standard prefabricated subsection, support prefabricated subsection and bridging prefabricated subsection；When structure, support prefabricated subsection is mounted on king-tower, standard prefabrication phase is linked in sequence along the both sides of the support prefabricated subsection, end connecting pin prefabricated subsection forms bridge plate.Bridge plate is resolved into multiple segments by the present invention, convenient for being transported to erecting bed after production in factory.Meanwhile the installation for also greatly facilitating scene effectively prevents the influence to lower section traffic under the premise of ensuring bridge intensity and installation progress, has very high promotional value.
Description
Technical field
The present invention relates to a kind of bridge structure and its building methods, especially a kind of bridge suitable for cable-stayed type foot bridge
Plate and its building method, specifically a kind of oblique pull foot bridge beam slab and building method.
Background technology
China's foot bridge is various informative, and in the majority with steel construction and reinforced concrete simple-supported beam bridge structure type.Wherein, tiltedly
Draw bridge because its beautiful design is just being widely used in the foot bridge of city.But most of oblique pull foot bridges and non-real at present
" oblique pull foot bridge ", but the suspension cable not stressed is set above simply supported girder bridge, makes oblique pull Landscape Form.Really tiltedly
Draw bridge due to its span is big, the prefabricated transport difficult of main span bridge plate and when in-site installation lower section road traffic is influenced it is big etc.
Factor, it is difficult to promote.Therefore, it is necessary to design a kind of easy to produce and transport, and when can avoid installation to lower section traffic cause compared with
The foot bridge contignation influenced greatly, to meet the needs for using and promoting.
Invention content
The purpose of the present invention is being directed to the problem of currently being encountered in oblique pull foot bridge building course, a kind of oblique pull people is provided
Row bridge plate and building method, it is prefabricated in factory by the way that bridge plate to be segmented, and first, then transport to scene and carry out splicing installation,
Not only make the production and transportation of bridge plate more convenient, moreover, may be caused to lower section traffic when effectively preventing in-site installation
Larger impact, be the construction of foot bridge and promote and create advantageous condition.
The technical scheme is that：
A kind of building method of oblique pull foot bridge beam slab, including multiple prefabricated subsections, each prefabricated subsection include that end is prefabricated
Segment, standard prefabricated subsection, support prefabricated subsection and bridging prefabricated subsection；The end prefabricated subsection can be with standard prefabricated subsection
It is connected；The standard prefabricated subsection, bridging prefabricated subsection can mutually be connected with support prefabricated subsection；The end prefabricated subsection
A side is straight flange, and another side is equipped with upper convex edge；A side of the standard prefabricated subsection is equipped with lower convex edge, and another side is set
There is upper convex edge；The two sides of the support prefabricated subsection are respectively equipped with lower convex edge；The two sides difference of the bridging prefabricated subsection
Equipped with upper convex edge；The upper convex edge is identical with the shape of lower convex edge, the splicing that can mutually smooth out；It is equipped on the upper convex edge
Several jacks；Several joint bars are equipped on the lower convex edge, the building method includes the following steps：
1) prefabricated each segment and it is transported to construction site；
2) the lower convex edge of the upper convex edge of each prefabricated subsection and other prefabricated subsections is spliced, joint bar is made to be inserted into jack, and to
High-strength mortar is perfused in jack, meanwhile, joint bar upper end is anchored with billet and nut；The support prefabricated subsection position
In on only tower king-tower；The bridging prefabricated subsection is attached standard prefabricated subsection between double tower king-tower；
3) duct of perforation is penetrated with prestressed strand, carries out tensioning, mud jacking and sealing off and covering anchorage construction, each prefabricated subsection is made to be linked to be
One；
4) concrete sealing off and covering anchorage construction is carried out to the both ends of the bridge plate after the completion of splicing, protects prestressed strand.
Further, it in the step 2), is installed using flat-bed format, that is, first build temporary rest pier, Bailey beam and distribution
Then beam body system lifts each prefabricated subsection to distribution beam respectively, then by manually sliding onto design position.
Further, it in the step 2), is installed using cantilever method, that is, first installation supports prefabricated section on beam of main tower
Section, then, continues to splice along its both sides.
Beneficial effects of the present invention：
Bridge plate is resolved into multiple segments by the present invention, convenient for being transported to erecting bed after production in factory.Meanwhile also
The installation for greatly facilitating scene effectively prevents under the premise of ensuring bridge intensity and installation progress to lower section
The influence of traffic has very high promotional value.
Description of the drawings
Fig. 1 is the structure and its A-A and B-B schematic diagrames of the end prefabricated subsection of the present invention.
Fig. 2 is the structure and its A1-A1 and B1-B1 schematic diagrames of the standard prefabricated subsection of the present invention.
Fig. 3 is the structure and its A2-A2 and B2-B2 schematic diagrames of the support prefabricated subsection of the present invention.
Fig. 4 is the structure and its A3-A3 and B3-B3 schematic diagrames of the bridging prefabricated subsection of the present invention.
Fig. 5 is the schematic diagram of the prefabricated subsection junction of the present invention.
Fig. 6 is the schematic diagram of the bridge plate end of the present invention.
Fig. 7 is the schematic diagram when present invention is used for Double-Tower Structure.
Fig. 8 is the schematic diagram when present invention is used for only tower structure.
Wherein：1- jacks；The ducts 2-；3- joint bars；4- high-strength mortars；5- billets；6- nuts；7- steel beams；8- mud jacking；9-
Anchorage；10- armored concrete sealing off and covering anchorage sections；The ends 1#- prefabricated subsection；2#- standard prefabricated subsections；3#- supports prefabricated subsection；4#- across
Connect prefabricated subsection.
Specific implementation mode
The present invention is further illustrated with reference to the accompanying drawings and examples.
As shown in figures 1 to 6.
A kind of oblique pull foot bridge beam slab, is formed by connecting by multiple prefabricated subsections.The prefabricated subsection include end prefabricated subsection,
Standard prefabricated subsection, support prefabricated subsection and bridging prefabricated subsection.Wherein, a side of the end prefabricated subsection is straight flange, separately
A side is equipped with upper convex edge；A side of the standard prefabricated subsection is equipped with lower convex edge, and another side is equipped with upper convex edge；The branch
The two sides of support prefabricated subsection are respectively equipped with lower convex edge；The two sides of the bridging prefabricated subsection are respectively equipped with convex edge；It is described
Upper convex edge is identical with the shape of lower convex edge, the splicing that can mutually smooth out.Each prefabricated subsection can be produced in factory
It makes.When making, according to the size of various prefabricated subsections and built-in fitting size and position processing and fabricating sizing punching block.Then in factory
Interior progress reinforcing bar binding, and on the upper convex edge of each segment bury multiple φ 8mm reserved jack 1；The inside of each segment is embedded
The prestressed strand metal bellows duct 2 of φ 5.5mm；The HRB400 grade reinforcing bars that φ 20mm are buried on the lower convex edge of each segment are inserted
Muscle 3.After the processes such as molding, casting concrete and steam curing, complete to produce in prefabricated subsection factory.Wherein, described to insert
The length of muscle 3 is more than the depth of the jack 1, and when making the two grafting, the upper end of the joint bar 3 can stretch out the jack 1.
The building method of the present invention includes the following steps：
1) prefabricated each segment and it is transported to construction site；
2) the upper convex edge of each prefabricated subsection and the lower convex edge of other prefabricated subsections are spliced, joint bar is made to be inserted into jack, and phase
High-strength mortar is perfused in jack, meanwhile, joint bar upper end is anchored with billet and nut；The support prefabricated subsection position
In on only tower king-tower；The bridging prefabricated subsection is attached standard prefabricated subsection between double tower king-tower；
3) duct of perforation is penetrated with prestressed strand, carries out tensioning, mud jacking and sealing off and covering anchorage construction, each prefabricated subsection is made to be linked to be
One；
4) concrete sealing off and covering anchorage construction is carried out to the both ends of the bridge plate after the completion of splicing, protects prestressed strand.
In the step 2, and following 2 kinds of modes can be used：
A. bridge plate is installed using support platform mode.Steel pipe temporary rest pier, Bailey beam can be used (along bridge in support platform
To), distribution beam (direction across bridge) system.Steel pipe temporary rest pier is arranged divides band and side point band etc. not to influence traffic above-ground in road
At position.Every prefabricated subsection is lifted to end bay distribution beam, then, from manually along bridge to sliding onto design position.It is adjacent
Segment overlap is inserted by the overlapping of upper and lower convex edge, and by the joint bar 3 on lower convex edge in the jack 1 of upper convex edge.Wait owning
It is whole to check bridge elevation and plane relative size after prefabricated subsection installs, the position of individual deviation angle is carried out
Intense adjustment, after meeting design specification requirement.Then, high-strength mortar 4 is perfused into each jack 1, makes between joint bar and jack
It is fastenedly connected.Meanwhile the billet 5 of 100mm × 100mm × 10mm is penetrated in the upper end of joint bar 3, and used above billet 5
Nut 6 is screwed in the end of joint bar.Nut 6 welds together after tightening with billet 6, and all prefabricated subsections is made to form entirety,
And 2 Dock With Precision Position of duct in each prefabricated subsection.
B. cantilever construction is used.First lifting support prefabricated subsection is placed on beam of main tower, and is consolidated.Other are prefabricated
It, to both sides free cantilever erection, is completed until bridge plate splices along the support prefabricated subsection segment.Wherein, the overlap joint between adjacent segment
Mode is identical as A modes, repeats no more.
The hole that prestressed strand 7 is penetrated every perforation by the traction of hand fit's low speed winch can be used in the step 3)
Road 2.Every elongated steel beam 7 is by 4 φs15.2mm low relaxed prestress steel strand forms.Meanwhile anchorage 9 being installed, and will wear
The steel beam 7 entered is connected on anchorage.When tensioning, first simultaneous tension both sides twice prestressed strand, rear simultaneous tension centre twice
Prestressed strand.Tensioning is read using oil meter and elongation double control, is sequentially：0 → P0 (10%P holds lotus 3min) → design
Control tension stress P (holding lotus 3min) → oil return.The design control stress for prestressing can be set as 1395MPa.It is interior for 24 hours after tensioning,
2 timely mud jacking 8 of duct one by one.The mud jacking carries out at twice, and pulp strength is not less than 30MPa.Steel finally is carried out to beam slab both ends
Reinforced concrete sealing off and covering anchorage section 10 is constructed, and prestressed strand 7 is protected.The concrete used uses C40 grades.
The present invention is adapted to double-tower type or solely tower oblique pull foot bridge.As shown in FIG. 7 and 8, it is both that will support
Prefabricated subsection 3# is mounted on king-tower, then, standard prefabricated subsection 2# is sequentially extended along the support prefabricated subsection both sides, end
Connecting pin prefabricated subsection 1# forms bridge plate.The two the difference is that, in Double-Tower Structure, the position among two king-towers, use
The standard prefabricated subsection 2# on both sides is connected by bridging prefabricated subsection 4#, keeps construction more convenient and efficient.
Part that the present invention does not relate to is the same as those in the prior art or can be realized by using the prior art.
Claims (3)
1. a kind of building method of oblique pull foot bridge beam slab, including multiple prefabricated subsections, each prefabricated subsection includes holding prefabricated section
Section, standard prefabricated subsection, support prefabricated subsection and bridging prefabricated subsection；The end prefabricated subsection can be with standard prefabricated subsection phase
Even；The standard prefabricated subsection, bridging prefabricated subsection can mutually be connected with support prefabricated subsection；The one of the end prefabricated subsection
Side is straight flange, and another side is equipped with upper convex edge；A side of the standard prefabricated subsection is equipped with lower convex edge, and another side is equipped with
Upper convex edge；The two sides of the support prefabricated subsection are respectively equipped with lower convex edge；The two sides of the bridging prefabricated subsection are set respectively
There is upper convex edge；The upper convex edge is identical with the shape of lower convex edge, the splicing that can mutually smooth out；If being equipped on the upper convex edge
Dry jack；Several joint bars are equipped on the lower convex edge, it is characterized in that the building method includes the following steps：
1）Prefabricated each segment is simultaneously transported to construction site；
2）The lower convex edge of the upper convex edge of each prefabricated subsection and other prefabricated subsections is spliced, joint bar is made to be inserted into jack, and to jack
Interior perfusion high-strength mortar, meanwhile, joint bar upper end is anchored with billet and nut；The support prefabricated subsection is located at only
On tower king-tower；The bridging prefabricated subsection is attached standard prefabricated subsection between double tower king-tower；
3）The duct of perforation is penetrated with prestressed strand, carries out tensioning, mud jacking and sealing off and covering anchorage construction, each prefabricated subsection is made to be linked to be one
Body；
4）Concrete sealing off and covering anchorage construction is carried out to the both ends of the bridge plate after the completion of splicing, protects prestressed strand.
2. the building method of oblique pull foot bridge beam slab according to claim 1, it is characterized in that the step 2）In, using flat
Platform mode is installed, that is, is first built temporary rest pier, Bailey beam and distribution beam system, is then lifted each prefabricated subsection respectively
To distribution beam, then by manually sliding onto design position.
3. the building method of oblique pull foot bridge beam slab according to claim 1, it is characterized in that the step 2）In, using outstanding
Arm method is installed, that is, first on beam of main tower then installation support prefabricated subsection continues to splice along its both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351141.1A CN106968161B (en) | 2017-05-18 | 2017-05-18 | A kind of oblique pull foot bridge beam slab and building method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351141.1A CN106968161B (en) | 2017-05-18 | 2017-05-18 | A kind of oblique pull foot bridge beam slab and building method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106968161A CN106968161A (en) | 2017-07-21 |
| CN106968161B true CN106968161B (en) | 2018-10-30 |
Family
ID=59326462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710351141.1A Active CN106968161B (en) | 2017-05-18 | 2017-05-18 | A kind of oblique pull foot bridge beam slab and building method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106968161B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109722981B (en) * | 2019-01-23 | 2024-04-12 | 上海绿地建设(集团)有限公司 | Landscape walking bridge using cable tower structure and installation and construction method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3701250B2 (en) * | 2002-03-06 | 2005-09-28 | 黒沢建設株式会社 | Cable stayed bridge and its construction method |
| KR100876074B1 (en) * | 2008-09-22 | 2008-12-26 | (주) 코리아에스이 | Main towers of cable stayed girder bridge and the construction method |
| CN201865037U (en) * | 2010-09-29 | 2011-06-15 | 郑州大学 | Assembly type hollow slab bridge transferring force by adopting bracket instead of ribbet |
| CN103866698B (en) * | 2014-03-14 | 2015-10-14 | 中铁十一局集团有限公司 | The false cantilever construction method of symmetrical cantilever bridge pad end |
| CN105544385B (en) * | 2015-12-04 | 2017-07-28 | 郑州大学 | A kind of seam construction of prefabricated subsection formula concrete-bridge |
| CN105625570B (en) * | 2016-02-04 | 2018-01-05 | 北京建筑大学 | A kind of prefabricated beam column attachment means and preparation method thereof |
| CN106320184B (en) * | 2016-09-30 | 2018-05-08 | 重庆大学 | A kind of unit construction bridge beam construction method |
| CN106638259B (en) * | 2017-02-16 | 2018-05-25 | 上海市城市建设设计研究总院（集团）有限公司 | The superstructure and its assembling and construction method of prefabricated uncovered beam type combined steel plate beam bridge |
-
2017
- 2017-05-18 CN CN201710351141.1A patent/CN106968161B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN106968161A (en) | 2017-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111778864B (en) | Bridge with longitudinal segmented prefabricated small box girder and construction method | |
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN108060636B (en) | The construction method of overall assembled composite beam bridge | |
| CN103046463B (en) | Assembly type saddle-shell-shaped bottom plate continuous box girder bridge and construction method thereof | |
| CN113652966B (en) | Construction method of full-prefabricated assembly type concrete beam type bridge structure system | |
| CN108842591A (en) | Configure the precast segment T beam bridge construction and construction method of internal external pre-stress bundle | |
| CN209493826U (en) | The interim splicing structure of concrete segment precast bridge | |
| CN109440623A (en) | The interim splicing structure of concrete segment precast bridge | |
| CN114892552B (en) | Box girder type bridge reconstruction construction method | |
| CN113638304B (en) | Concrete beam type bridge hidden cover beam structure system and construction method thereof | |
| CN106012872A (en) | Dorsal-funiculus-free cable-stayed reinforcing system of continuous rigid frame bridge and construction method | |
| CN109112961A (en) | A kind of construction method of ultra-thin bridge deck structure, truss-type bridges and truss-type bridges | |
| CN109267470A (en) | A kind of assembled type steel-concrete preflex composite continuous bridge and its construction method | |
| CN212452316U (en) | Bridge with small box girders prefabricated in longitudinal sections | |
| CN106968161B (en) | A kind of oblique pull foot bridge beam slab and building method | |
| CN204151663U (en) | A kind of hybrid beam is without dorsal funciculus low-pylon cable-stayed bridge | |
| CN113512932B (en) | Prestressed steel beam connected prefabricated small box girder type hidden cover beam and construction method thereof | |
| CN216108007U (en) | Concrete beam type bridge and cast-in-situ hidden cover beam thereof | |
| CN214737289U (en) | Mounting structure for assembled elevated road and bridge | |
| JP2963879B2 (en) | Bridge girder | |
| CN115125821A (en) | Longitudinally segmented steel concrete mixed prefabricated small box girder bridge and construction method | |
| JP2007046277A (en) | Bridge girder installing method | |
| CN203080397U (en) | Assembly-type saddle-shell-shaped bottom plate continuous box girder bridge | |
| CN105421253A (en) | Prestress concrete simply supported beam reinforcing method and reinforcing structure thereof | |
| CN205205699U (en) | Prestressed concrete simple beam reinforced structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |