CN108660908A - A kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower - Google Patents
A kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower Download PDFInfo
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- CN108660908A CN108660908A CN201810628470.0A CN201810628470A CN108660908A CN 108660908 A CN108660908 A CN 108660908A CN 201810628470 A CN201810628470 A CN 201810628470A CN 108660908 A CN108660908 A CN 108660908A
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- Prior art keywords
- girder
- bridge
- tower
- pier
- bridge tower
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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
- 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
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
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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 kind of prestressed concrete cable-stayed bridges of the beam prefabricated pin-connected panel of tower, the middle pier of abutment pier and middle part including both sides, it is provided with girder on the abutment pier, middle pier, the middle pier pier top girder segment laterally sets bridge tower, multipair suspension cable is arranged between the bridge tower and girder, the girder is the prestressed concrete box girder for directly bearing train load, and the bridge tower is made of the splicing of multiple bridge tower prefabricated subsections.The girder includes multiple girder prefabricated subsections.Present invention decreases precast segment spliced girder deck-moldings, alleviate segment weight, facilitate segment transport and lifting.The present invention is efficiently solved by arranging external suspension cable compared with the assembled girder pre-stressed arrangement space limitation problem of the precast segment of large span.Girder and bridge tower of the present invention are all made of segmental precast erection method construction, save the construction period, improve construction quality, and reducing the later stage creeps, and realize that mechanization, standardized construction, work progress are also more environmentally-friendly.
Description
Technical field
The invention belongs to bridge structure building fields, and in particular to a kind of prestressed concrete of the beam prefabricated pin-connected panel of tower is oblique
Draw bridge.
Background technology
As segmental precast erection method builds the increasing of prestressed concrete continuous beam span, deck-molding and segment weight are continuous
Increase, make troubles to segment transport and lifting, while the prestressing force needed after span increasing is more, prestressing with bond cloth empties
Between it is more limited.The span centre of general continuous beam is contour section shorter, and most of segment is to get higher section, is unfavorable for precast segment spelling
Dress method is built.Bridge tower uses cast-in-place construction, needs to set up on middle pier pier top segment and is abound with holder, and construction quality is not easy to ensure,
Also it is unfavorable for environmental protection.
Invention content
The present invention proposes in order to solve the problems existing in the prior art, and the purpose is to provide a kind of beam prefabricated pin-connected panel of tower
Prestressed concrete cable-stayed bridge.
The technical scheme is that：A kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower, including both sides
The middle pier of abutment pier and middle part is provided with girder on the abutment pier, middle pier, and the middle pier pier top girder segment laterally sets bridge tower, institute
It states and arranges multipair suspension cable between bridge tower and girder, the girder is the prestressed concrete box girder for directly bearing train load, institute
Bridge tower is stated to be made of the splicing of multiple bridge tower prefabricated subsections.
The girder includes multiple girder prefabricated subsections.
Girder is girder end bay between the abutment pier, middle pier, and girder is in girder across described between the Zhong Dun, middle pier
In girder across it is contour section longer, to get higher section beam bottom be multiple parabolic shape or linear, across being one or more in the girder
It is a.
The girder segment of the middle pier pier top uses Support Method cast-in-situ or batch production fabrication and erection.
It is fixed by girder shear connector between the girder prefabricated subsection, seam crossing is smeared between the girder prefabricated subsection
Bridge epoxy resin sealant.
Being provided between the girder prefabricated subsection keeps epoxy resin sealant cured interim pre- in the case where there is pressure state
Answer power apparatus.
It is fixed by bridge tower shear connector between the bridge tower prefabricated subsection.
Bridge tower main reinforcement is provided in the bridge tower prefabricated subsection, bridge tower prefabricated subsection end face is additionally provided with bridge tower shearing
Key, bridge tower main reinforcement border arrangement, the bridge tower shear connector are arranged on the inside of bridge tower main reinforcement.
The bridge tower main reinforcement is connected by grout sleeve, and it is close that bridge epoxy resin is smeared between the bridge tower prefabricated subsection
Sealing makes epoxy resin sealant cure in the case where there is pressure state using dead weight and bridge tower vertical prestressed reinforcement.
Bearing or consolidation are set between the girder and middle pier, bearing is set between girder and abutment pier.
The bridge tower is single-column, twin columns or H-type, and bridge tower uses solid section or hollow section, and cross sectional shape can be square
Shape or various other shapes.
Beneficial effects of the present invention are as follows：
1, present invention decreases precast segment spliced girder deck-molding, segment weight is alleviated, facilitates segment transport and lifting.
2, the present invention is efficiently solved by arranging external suspension cable compared with the assembled girder pre-stressed cloth of the precast segment of large span
Empty a limitation problem.
3, the present invention increases the high segment length such as span centre, and reduction gets higher segment quantity, is conducive to segmental precast erection method construction,
And it is handsome in appearance.
4, girder and bridge tower of the present invention are all made of segmental precast erection method construction, save the construction period, improve construction
Quality, reducing the later stage creeps, and realizes that mechanization, standardized construction, work progress are also more environmentally-friendly.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the cross-sectional view of bridge tower embodiment one in the present invention；
Fig. 3 is the cross-sectional view of bridge tower embodiment two in the present invention；
Fig. 4 is the cross-sectional view of bridge tower embodiment three in the present invention；
Fig. 5 is the connection diagram of middle girder prefabricated subsection of the present invention；
Fig. 6 is the connection diagram of bridge tower prefabricated subsection in the present invention；
Fig. 7 is the arrangement schematic diagram of bridge tower prefabricated subsection end face shear connector in the present invention；
Wherein：
Pier in 1 infrastructure 2
3 abutment pier, 4 girder
5 bridge tower, 6 suspension cable
7 girder prefabricated subsection, 8 girder shear connector
9 bridge tower prefabricated subsection, 10 bridge tower shear connector
11 bridge tower main reinforcements.
Specific implementation mode
Hereinafter, with reference to drawings and examples, the present invention is described in detail：
As shown in Fig. 1 ~ 7, a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower, including the abutment pier 3 of both sides and middle part
Middle pier 2, be provided with girder 4 on the abutment pier 3, middle pier 2,2 pier top girder segment of the middle pier laterally sets bridge tower 5, the bridge
Arrange that multipair suspension cable 6, the girder 4 are the prestressed concrete box girder for directly bearing train load, institute between tower 5 and girder 4
Bridge tower 5 is stated to be made of the splicing of multiple bridge tower prefabricated subsections 9.
The girder 4 includes multiple girder prefabricated subsections 7.
Girder 4 is girder end bay between the abutment pier 3, middle pier 2, and girder 4 is in girder between the middle pier 2, middle pier 2
Across, in the girder across it is contour section longer, to get higher section beam bottom be multiple parabolic shape or linear, across being one in the girder
It is a or multiple.
The girder segment of 2 pier top of middle pier uses Support Method cast-in-situ or batch production fabrication and erection.
It is fixed by girder shear connector 8 between the girder prefabricated subsection 7, seam crossing between the girder prefabricated subsection 7
Smear bridge epoxy resin sealant.
Being provided between the girder prefabricated subsection 7 keeps epoxy resin sealant cured interim pre- in the case where there is pressure state
Answer power apparatus.
It is fixed by bridge tower shear connector 10 between the bridge tower prefabricated subsection 9.
Bridge tower main reinforcement 11 is provided in the bridge tower prefabricated subsection 9,9 end face of bridge tower prefabricated subsection is additionally provided with bridge tower
Shear connector 10,11 border of the bridge tower main reinforcement arrangement, the setting of bridge tower shear connector 10 is in 11 inside of bridge tower main reinforcement.
The bridge tower main reinforcement 11 is connected by grout sleeve, and bridge asphalt mixtures modified by epoxy resin is smeared between the bridge tower prefabricated subsection 9
Fat fluid sealant makes epoxy resin sealant cure in the case where there is pressure state using dead weight and bridge tower vertical prestressed reinforcement.
Bearing or consolidation are set between the girder 4 and middle pier 2, bearing is set between girder 4 and abutment pier.
The bridge tower 5 is single-column, twin columns or H-type, and bridge tower 5 can be using solid section or hollow section, cross sectional shape
Rectangle or various other shapes.
The abutment pier 3,2 lower end of middle pier are both provided with infrastructure 1.
The infrastructure 1 is pile foundation, one kind of Extended chemotherapy, well foundation.
The girder 4 uses prestressed concrete continuous box girder, girder 4 to be supported on 3 top of middle pier 2 and abutment pier, bridge pier bottom
Portion is connect with infrastructure 1.2 pier top girder segment of middle pier laterally sets bridge tower 5, and girder 4 and bridge tower 5 consolidate between bridge tower 5 and girder 4
It is longitudinally arranged several to suspension cable 6.Suspension cable 6 can reduce the moment of flexure of prestressed concrete continuous box girder, reduce deck-molding, mitigate knot
Structure weight.
Girder 4 indulges bridge to being divided into several segments.2 pier top girder segment of middle pier uses Support Method cast-in-situ or work
Factoryization is prefabricated, such as uses and is connect by cast-in-place wet seam with adjacent girder and bridge tower prefabricated subsection when Support Method cast-in-situ.It is main
Cast-in-place closure section being set across span centre in beam 4 or being joined the two sections of a bridge, etc using wet seam, remaining segment is all made of that batch production is prefabricated, on-site consolidation is applied
Work.Setting sealing device prevents from blocking pipeline and ensures its durability between adjacent girder prefabricated subsection 7 corresponds to prestress pipe.Phase
The girder shear connector 8 being mutually twisted is set between adjacent girder prefabricated subsection 7, joint face smears bridge epoxy resin sealant, and applies
Add interim prestressing force that epoxy resin sealant is made to cure in the case where there is pressure state, with the permanent prestressing force in post-stretching segment and corresponds to oblique
Drag-line realizes prefabricated subsection splicing.
Bridge tower 5 is vertically divided into several segments, is constructed using segmental precast erection method, is arranged between adjacent bridge tower prefabricated subsection 9
The bridge tower shear connector 10 being mutually twisted, bridge tower shear connector 10 are arranged in the inside of bridge tower main reinforcement, and bridge tower main reinforcement 11 is covered by being in the milk
Cylinder connection, smears bridge epoxy resin sealant between segmental joints face, utilizes segment dead weight and bridge tower vertical prestressing steel
Muscle makes fluid sealant cure in the case where there is pressure state.
The construction procedure of the present invention is as follows：
Construction infrastructure 1, and pier 2 and side in factory synchronizes precast main beam prefabricated subsection 7 and bridge tower prefabricated subsection 9 → construction
Pier 3, and 2 pier top girder segment of pier → assembly in factory synchronizes precast main beam prefabricated subsection 7 and bridge tower prefabricated subsection 9 → construction
Bridge tower 5, while symmetrical 4 other segments of free cantilever erection girder, tensioning correspond in segment prestressing force and suspension cable → girder 4 across conjunction
The attached construction of dragon, tensioning closure prestressed strands → bridge floor → mend tensioning part suspension cable as needed.
Girder segment and bridge tower segment be prefabricated in the factory, health and deposits beam, with reduce the later stage shrink, time deformation.
Longitudinal reinforcement is discontinuous between adjacent girder prefabricated subsection 7, and longitudinal reinforcement stretches into shear connector.Adjacent bridge tower is prefabricated
The bridge tower main reinforcement 11 of segment 9 is connected by grout sleeve.Wet seam is longitudinal（Vertically）Reinforcing bar and 4 closure section longitudinal reinforcement of girder connect
Spreading.
Prefabricated subsection joint face must clean, and remove concrete surface weaker zone, and gluing front surface should be dried.Section assembling
Afterwards, before epoxy resin sealant solidification, rain-proof measure should be taken, and avoid malformation.
Prestress pipe adds corrosion inhibitor using vacuum grouting technique is assisted in pipeline pneumatic mortar material.
Splicing is sewn on during entire construction and operation, tensile stress cannot occurs.
Present invention decreases precast segment spliced girder deck-moldings, alleviate segment weight, facilitate segment transport and lifting.
The present invention is efficiently solved by arranging external suspension cable compared with the assembled girder pre-stressed arrangement of the precast segment of large span
Limited space problem.
The present invention increases the high segment length such as span centre, and reduction gets higher segment quantity, is conducive to segmental precast erection method construction, and
It is handsome in appearance.
Girder and bridge tower of the present invention are all made of segmental precast erection method construction, save the construction period, improve construction matter
Amount, reducing the later stage creeps, and realizes that mechanization, standardized construction, work progress are also more environmentally-friendly.
Claims (10)
1. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower, includes the abutment pier of both sides（3）With the middle pier at middle part
（2）, the abutment pier（3）, middle pier（2）On be provided with girder（4）, the middle pier（2）Pier top girder segment laterally sets bridge tower（5）,
The bridge tower（5）With girder（4）Between arrange multipair suspension cable（6）, it is characterised in that：The girder（4）Directly to bear train
The prestressed concrete box girder of load, the bridge tower（5）By multiple bridge tower prefabricated subsections（9）Splicing composition.
2. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 1, it is characterised in that：Institute
State girder（4）Including multiple girder prefabricated subsections（7）.
3. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 2, it is characterised in that：Institute
State abutment pier（3）, middle pier（2）Between girder（4）For girder end bay, the middle pier（2）, middle pier（2）Between girder（4）For in girder
Across, in the girder across it is contour section longer, to get higher section beam bottom be multiple parabolic shape or linear, across being one in the girder
It is a or multiple.
4. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 1, it is characterised in that：Institute
State middle pier（2）The girder segment of pier top uses Support Method cast-in-situ or batch production fabrication and erection.
5. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 2, it is characterised in that：Institute
State girder prefabricated subsection（7）Between pass through girder shear connector（8）It is fixed, the girder prefabricated subsection（7）Between seam crossing smear
Bridge epoxy resin sealant.
6. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 5, it is characterised in that：Institute
State girder prefabricated subsection（7）Between be provided with and make epoxy resin sealant cured interim prestressing force dress in the case where there is pressure state
It sets.
7. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 1, it is characterised in that：Institute
State bridge tower prefabricated subsection（9）Between pass through bridge tower shear connector（10）It is fixed.
8. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 7, it is characterised in that：Institute
State bridge tower prefabricated subsection（9）In be provided with bridge tower main reinforcement（11）, the bridge tower prefabricated subsection（9）End face is additionally provided with bridge tower shearing
Key（10）, the bridge tower main reinforcement（11）Border arrangement, the bridge tower shear connector（10）It is arranged in bridge tower main reinforcement（11）Inside.
9. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 8, it is characterised in that：Institute
State bridge tower main reinforcement（11）It is connected by grout sleeve, the bridge tower prefabricated subsection（9）Between smear bridge sealed with epoxy resin
Glue makes epoxy resin sealant cure in the case where there is pressure state using dead weight and bridge tower vertical prestressed reinforcement.
10. a kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower according to claim 1, it is characterised in that：
The girder（4）With middle pier（2）Between setting bearing or consolidation, girder（4）Bearing, the bridge tower are set between abutment pier
（5）For single-column, twin columns or H-type, bridge tower（5）Using solid section or hollow section, cross sectional shape can be rectangle or other shapes
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628470.0A CN108660908A (en) | 2018-06-19 | 2018-06-19 | A kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810628470.0A CN108660908A (en) | 2018-06-19 | 2018-06-19 | A kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower |
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| Publication Number | Publication Date |
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| CN108660908A true CN108660908A (en) | 2018-10-16 |
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| CN201810628470.0A Pending CN108660908A (en) | 2018-06-19 | 2018-06-19 | A kind of prestressed concrete cable-stayed bridge of the beam prefabricated pin-connected panel of tower |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440623A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | The interim splicing structure of concrete segment precast bridge |
| CN109610321A (en) * | 2018-11-22 | 2019-04-12 | 安徽省交通规划设计研究总院股份有限公司 | A kind of subsection beam construction method for adding horizontal distribution reinforcing bar |
| CN110130201A (en) * | 2019-06-04 | 2019-08-16 | 中国铁路设计集团有限公司 | A kind of half floats the cable-stayed bridge of truss-like bridge tower |
| CN110211480A (en) * | 2019-06-04 | 2019-09-06 | 大连海事大学 | A kind of long-span cablestayed bridges model applied to BIM teaching |
| CN110565501A (en) * | 2019-09-23 | 2019-12-13 | 中铁第四勘察设计院集团有限公司 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109440623A (en) * | 2018-11-20 | 2019-03-08 | 湖南工业大学 | The interim splicing structure of concrete segment precast bridge |
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| CN109610321A (en) * | 2018-11-22 | 2019-04-12 | 安徽省交通规划设计研究总院股份有限公司 | A kind of subsection beam construction method for adding horizontal distribution reinforcing bar |
| CN110130201A (en) * | 2019-06-04 | 2019-08-16 | 中国铁路设计集团有限公司 | A kind of half floats the cable-stayed bridge of truss-like bridge tower |
| CN110211480A (en) * | 2019-06-04 | 2019-09-06 | 大连海事大学 | A kind of long-span cablestayed bridges model applied to BIM teaching |
| CN110565501A (en) * | 2019-09-23 | 2019-12-13 | 中铁第四勘察设计院集团有限公司 | Side span consolidation-tower beam semi-floating mixed system concrete beam cable-stayed bridge |
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