CN109881573A - A kind of assembly hollow slab bridges construction - Google Patents
A kind of assembly hollow slab bridges construction Download PDFInfo
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- CN109881573A CN109881573A CN201910255520.XA CN201910255520A CN109881573A CN 109881573 A CN109881573 A CN 109881573A CN 201910255520 A CN201910255520 A CN 201910255520A CN 109881573 A CN109881573 A CN 109881573A
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- hollow slab
- precast hollow
- diaphragm plate
- slab
- boss
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Abstract
A kind of assembly hollow slab bridges construction of the present invention, belongs to technical field of bridge engineering.The side bar inside bottom is equipped with boss, and inner beam cross section two sides of the bottom are equipped with boss；The beam-ends bottom of monolithic precast hollow slab is equipped with single support, the boss of adjacent two precast hollow slab bottom constitutes longitudinal spliced seam, setting hinge seam between the adjacent longitudinal spliced face of two precast hollow slabs, the hinge, which is stitched, fills contraction-free grouting concrete at the longitudinal spliced seam of bottom plate of bottom surface；Precast hollow slab is equipped with diaphragm plate in spaning middle section and end section, the section of the diaphragm plate is rectangle, its internal quadrangle is evenly distributed with transverse prestressed reinforcing steel bar and bonding of being in the milk, buried anchorage is equipped on the outside of the side bar, the precast hollow slab is embedded with transverse prestress duct respectively inside diaphragm plate, and the transverse prestress duct between contiguous prefabricated cored slab corresponds at diaphragm plate splicing seams and is equipped with steel shear tenon with holes.
Description
Technical field
The present invention relates to technical field of bridge engineering.
Background technique
Correlative study and domestic various regions are completed bridge defect investigation and show that cored slab hinge seam faying face is not set effectively
When distributing bar, the construction time pours attention not enough to hinge seam in addition, will cause conjunction old and new concret face adhesion strength at hinge seam
It is insufficient；Under the effect of heavy traffic wheel load after the failure of hinge seam, the beam slab stress of hollow slab bridge is " single slab bearing " phenomenon.Currently, single
Piece cored slab traditional design support scheme is that two beam-ends are arranged 4 supports altogether, and 4 supporting points be difficult to precisely to be placed on one it is flat
On face, " three legs " effect easy to form leads to individual seat empties；After individual seat empties, cored slab hinge seam can also passed
Power is unfavorable.Theoretical calculation and tests study analysis show that the stress of cored slab hinge seam mainly includes transverse shearing force and transverse direction between plate
How moment of flexure increases the lateral tension construction of hinge seam bottom, guarantees the reliability of lateral connection in structure, be to guarantee cored slab
The key of bridge transverse direction globality and safety durable.
Currently, stitching this stress weak part of faying face for hinge, maximally efficient corrective measure is exactly in cored slab
Tensioning transverse prestressed reinforcing steel bar in portion's reinforces the cohesive force in cored slab horizontal integration face by actively applying faying face prestressing force, from
And guarantee the lateral globality of bridge.
Chinese invention patent CN103741588B (title are as follows: the prefabricated case beam transverse prestressed reinforcing steel bar of plate girder bridge installs knot
Structure) disclose the mounting structure that a kind of plate girder bridge adds transverse prestressed reinforcing steel bar, transversely prestressed bars connected by several segments and
At, between adjacent two sections of deformed bar by tool internal thread sleeve series connection, can adjust as needed in use
The size or replacement deformed bar of whole transverse prestress.But more inner thread sleeve need to be arranged in the construction, and inconvenience is constructed, and
Presstressed reinforcing steel is designed by soap-free emulsion polymeization, there are anchor heads to corrode failure risk.
Chinese invention patent CN103938543B (title are as follows: hinged hollow slab girder and its lateral soap-free emulsion polymeization post stretching are answered in advance
Power construction technology) and a kind of Chinese invention patent CN103485281B (title are as follows: external transverse prestress hollow slab bridge of assembled
Construction method) individually disclose the scheme that a kind of Hollow Slab Beam Bridge adds transverse prestressed reinforcing steel bar, used by the program
Transversely prestressed bars are still unbonded reinforcement, and there are anchor heads to corrode failure risk.
Chinese invention patent CN105735127B (title are as follows: the prefabricated cored slab of segment transverse direction prestressing without bondn
Bridge structure and its construction technology) scheme that a kind of Hollow Slab Beam Bridge adds transverse prestressed reinforcing steel bar is disclosed, the program is adjacent
Transversely prestressed bars curved under used shaped form between two pieces of cored slabs, inconvenience construction, and be still unbonded reinforcement, there are anchor heads
Corrode failure risk.
Summary of the invention
The object of the present invention is to provide a kind of assembly hollow slab bridges constructions, it can efficiently solve the failure of hinge seam and support
The technical issues of coming to nothing.
Technical program of the present invention lies in: a kind of assembly hollow slab bridges construction, including along the laterally consecutive parallel row of bridge floor
The side bar and inner beam and the cast-in-place united layer of bridge floor, bridge deck pavement and guardrail of the precast hollow slab structure of column, the side bar
Inside bottom is equipped with boss, and inner beam cross section two sides of the bottom are equipped with boss；The beam-ends bottom of monolithic precast hollow slab is set
There is single support, the boss of adjacent two precast hollow slab bottom constitutes longitudinal spliced seam, the adjacent longitudinal spliced face of two precast hollow slabs
Between setting hinge seam, it is described hinge seam bottom surface the longitudinal spliced seam of bottom plate at fill contraction-free grouting concrete；Precast hollow slab is in span centre
Section and end section are equipped with diaphragm plate, and the section of the diaphragm plate is rectangle, and internal quadrangle is evenly distributed with transverse prestressed reinforcing steel bar
And bonding of being in the milk, the side bar outside are equipped with buried anchorage, the precast hollow slab is embedded with transverse direction respectively inside diaphragm plate
Prestressed pore passage, the transverse prestress duct between contiguous prefabricated cored slab correspond at diaphragm plate splicing seams and are equipped with steel
Make shear tenon with holes.
The precast hollow slab beam-ends and across diaphragm plate docking at reserve width 1.0cm splicing seams.Tensioning is lateral
It is filled before deformed bar using contraction-free grouting concrete.
The precast hollow slab reserves the splicing seams of width about 1.0cm at hinge seam root edge, uses before prestressed reinforcement of tensioning
Contraction-free grouting concrete filling.The boss of the precast hollow slab bottom is longitudinally through.
Hinge seam between the precast hollow slab, before tensioning transverse prestressed reinforcing steel bar, pours ungauged regions pea gravel concreten and fills out
It fills.
Between the transverse prestress duct of the precast hollow slab and transverse prestressed reinforcing steel bar, slip casting is needed to bond.
Compared with prior art, the invention has the following advantages that the single branch of single beam-ends setting of monolithic precast hollow slab
Seat, it can be ensured that support does not come to nothing；Prestressing force diaphragm plate is set, improves the lateral globality of hollow slab bridge, structure is lateral stressed
Reliability is guaranteed；Hinge seam pours material using ungauged regions pea gravel concreten, increases the viscous of faying face by transverse prestress
Knotting strength, it can be ensured that improve hinge seam durability and power transmission reliability.
Detailed description of the invention
Fig. 1 is structural plan arrangement schematic diagram of the invention
Fig. 2 is I-I cross-section diagram of Fig. 1 of the invention；
Fig. 3 is II-II cross-section diagram of Fig. 1 of the invention；
Fig. 4 is III-III cross-section diagram of Fig. 1 of the invention；
Fig. 5 is IV-IV cross-section diagram of Fig. 1 of the invention；
Fig. 6 is the enlarged drawing in Fig. 4 of the invention at A.
Specific embodiment
For allow features described above of the invention and advantage can more obvious and easy to understand, special embodiment below, and cooperate attached drawing, make
Detailed description are as follows, but the present invention is not limited thereto.
A kind of assembly hollow slab bridges construction, it is single including the multi-disc precast hollow slab 1 along the laterally consecutive parallel arranged of bridge floor
The single beam-ends of piece precast hollow slab is arranged as single support 4, setting hinge seam 2, precast hollow slab 1 between contiguous prefabricated cored slab 1
Interior transverse stretching has deformed bar 7.
Diaphragm plate 3 is provided on the spaning middle section of the precast hollow slab 1, end section.
Transverse prestress duct 8 is reserved in the diaphragm plate 3 of the precast hollow slab 1, between contiguous prefabricated cored slab 1
Transverse prestress duct 8 corresponds at diaphragm plate splicing seams 5.
It is with holes that cylindric steel is inserted by device to hole at splicing seams in the transverse prestress duct 8 of the precast hollow slab 1
Shear tenon 9 realizes the spreading of prestress pipe, the both extending device as transverse prestress duct 8 of steel cylinder shear tenon 9, together
When be used as the shearing resistance of splicing seams 5 at diaphragm plate to construct again.
The precast hollow slab 1 beam-ends and across 3 docking of diaphragm plate at reserve the splicing seams 5 of wide about 1.0cm, tensioning
It is filled before tensioning transverse prestressed reinforcing steel bar 7 using contraction-free grouting concrete.
The precast hollow slab 1 reserves the splicing seams 6 of wide about 1.0cm at the root edge of hinge seam 2, and tensioning tensioning is laterally answered in advance
It is filled before power reinforcing bar 7 using contraction-free grouting concrete.
Hinge seam 2 between the precast hollow slab 1, before tensioning transverse prestressed reinforcing steel bar 7, pours ungauged regions pea gravel concreten and fills out
It fills.
It is bonded between the transverse prestress duct 8 and transverse prestressed reinforcing steel bar 7 of the precast hollow slab 1 through slip casting.
Working procedure: first precast hollow slab 1 of lifting → at the diaphragm plate splicing seams 5 of first precast hollow slab 1
Device to hole is inserted into cylindric steel shear tenon with holes 9 → install second precast hollow slab 1 again, at adjacent diaphragm plate splicing seams 5
Device to hole is inserted into the process of cylindric steel shear tenon with holes 9 → so and completes the lifting of all precast hollow slabs 1 → in each road tabula
Contraction-free grouting concrete → horizontally-spliced stitch of bottom plate at 2 bottoms of precast hollow slab hinge seam is filled at the splicing seams 5 of plate 3, and nothing is filled at 6
Shrinkage grouting filler → ungauged regions pea gravel concreten is poured at each precast hollow slab hinge seam 2 → is pacified in transverse prestress duct 8
After dress 7 → precast hollow slab of transverse prestressed reinforcing steel bar joint filler intensity reaches, pass through the buried anchorage at outermost cored slab
10 using jack symmetrical, balanced tensioning transverse prestressed reinforcing steel bars 7, apply transverse prestress → to transverse prestress duct 8 into
Row mud jacking → close to the notch perfusion mortar of anchorage 10 buried at outermost cored slab → the cast-in-place integration of bridge floor of constructing
In-situ layer 12 → construction bridge deck pavement and guardrail etc..
The above are a specific embodiment of the invention, from implementation process as can be seen that one kind provided by the invention is novel
Assembly hollow slab bridges construction improves the lateral globality of precast hollow slab bridge, structure is horizontal by the way that prestressing force diaphragm plate is arranged
It is guaranteed to stress reliability；The adhesion strength in horizontal integration face is increased by transverse prestress, it can be ensured that hinge seam is durable
Property and power transmission reliability；Single support is arranged in the single beam-ends of monolithic cored slab, it can be ensured that support does not come to nothing.The present invention and existing skill
Art compares, simple structure, convenient, bridge lateral good integrity of constructing, traditional scheme hinge seam destructible can effectively be overcome to fail,
The deficiency that support easily comes to nothing is suitble to large-scale promotion application.
Claims (3)
1. a kind of assembly hollow slab bridges construction, including precast hollow slab (1) structure along the laterally consecutive parallel arranged of bridge floor
Side bar and the cast-in-place united layer of inner beam and bridge floor (11), bridge deck pavement (12) and guardrail (13), it is characterised in that: the side
Beam inside bottom is equipped with boss, and inner beam cross section two sides of the bottom are equipped with boss；The beam-ends bottom of monolithic precast hollow slab (1)
Portion is equipped with single support (4), and the boss of adjacent two precast hollow slab (1) bottom constitutes longitudinal spliced seam (6), adjacent two precast hollow
Setting hinge seam (2) between plate (1) longitudinal spliced face, the hinge, which is stitched, fills ungauged regions at the longitudinal spliced seam (6) of bottom plate of (2) bottom surface
Grouting material；Precast hollow slab (1) is equipped with diaphragm plate (3) in spaning middle section and end section, and the section of the diaphragm plate (3) is square
Shape, internal quadrangle are evenly distributed with transverse prestressed reinforcing steel bar (7) and bonding of being in the milk, are equipped with buried anchorage (10) on the outside of the side bar, institute
State precast hollow slab (1) and be embedded with respectively transverse prestress duct (8) inside the diaphragm plate (3), contiguous prefabricated cored slab (1) it
Between transverse prestress duct (8) corresponded at diaphragm plate splicing seams (5) and be equipped with steel shear tenon with holes (9).
2. a kind of assembly hollow slab bridges construction according to claim 1, it is characterised in that: the precast hollow slab (1)
Beam-ends and across diaphragm plate (3) docking at reserve width 1.0cm splicing seams (5).
3. a kind of assembly hollow slab bridges construction according to claim 1, it is characterised in that: the precast hollow slab (1)
The boss of bottom is longitudinally through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255520.XA CN109881573A (en) | 2019-04-01 | 2019-04-01 | A kind of assembly hollow slab bridges construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910255520.XA CN109881573A (en) | 2019-04-01 | 2019-04-01 | A kind of assembly hollow slab bridges construction |
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| Publication Number | Publication Date |
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| CN109881573A true CN109881573A (en) | 2019-06-14 |
Family
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| CN201910255520.XA Pending CN109881573A (en) | 2019-04-01 | 2019-04-01 | A kind of assembly hollow slab bridges construction |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348870A1 (en) * | 1988-06-27 | 1990-01-03 | Werner Zapf | Constructions composed of several precast reinforced-concrete elements for use in the prestressed concrete construction method |
| EP1983125A2 (en) * | 2007-04-17 | 2008-10-22 | A-Consult Holding Group A/S | Sealing device |
| CN101634134A (en) * | 2008-07-21 | 2010-01-27 | 株式会社大宇建设 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof |
| CN201778276U (en) * | 2010-08-27 | 2011-03-30 | 郑州大学 | Integrally assembled hollow slab bridge |
| CN102587267A (en) * | 2012-04-06 | 2012-07-18 | 浙江大学 | Tension-fabricated bridge with prestressed hollow-plate-girders and middle transverse partitions and construction method of tension-fabricated bridge with prestressed hollow-plate-girder and middle transverse partitions |
| JP2012251360A (en) * | 2011-06-02 | 2012-12-20 | Taisei Corp | Sheath junction structure |
| CN103741588A (en) * | 2013-12-31 | 2014-04-23 | 郑州大学 | Precast box girder transverse prestress steel bar mounting structure of plate girder bridge |
| KR20150137492A (en) * | 2014-05-29 | 2015-12-09 | 한국건설기술연구원 | Member for connecting sheath of precast concrete structure, and construction method using the same |
| US20160265212A1 (en) * | 2015-03-13 | 2016-09-15 | National Applied Research Laboratories | Precast segment, stacking structure and energy dissipation column thereof |
| CN206538880U (en) * | 2017-02-16 | 2017-10-03 | 上海市城市建设设计研究总院（集团）有限公司 | Compound shearing alignment pin |
| KR101930674B1 (en) * | 2018-04-13 | 2018-12-18 | 김연종 | Spliced Prestressed Concrete Girder and Fabrication Method for Thereof |
| CN209854527U (en) * | 2019-04-01 | 2019-12-27 | 西南交通大学 | Assembled hollow slab bridge structure |
-
2019
- 2019-04-01 CN CN201910255520.XA patent/CN109881573A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0348870A1 (en) * | 1988-06-27 | 1990-01-03 | Werner Zapf | Constructions composed of several precast reinforced-concrete elements for use in the prestressed concrete construction method |
| EP1983125A2 (en) * | 2007-04-17 | 2008-10-22 | A-Consult Holding Group A/S | Sealing device |
| CN101634134A (en) * | 2008-07-21 | 2010-01-27 | 株式会社大宇建设 | Psc bridge pier assembled with precast concrete segments having steel duct and steel pipe and reinforcing bar, and constructing method thereof |
| CN201778276U (en) * | 2010-08-27 | 2011-03-30 | 郑州大学 | Integrally assembled hollow slab bridge |
| JP2012251360A (en) * | 2011-06-02 | 2012-12-20 | Taisei Corp | Sheath junction structure |
| CN102587267A (en) * | 2012-04-06 | 2012-07-18 | 浙江大学 | Tension-fabricated bridge with prestressed hollow-plate-girders and middle transverse partitions and construction method of tension-fabricated bridge with prestressed hollow-plate-girder and middle transverse partitions |
| CN103741588A (en) * | 2013-12-31 | 2014-04-23 | 郑州大学 | Precast box girder transverse prestress steel bar mounting structure of plate girder bridge |
| KR20150137492A (en) * | 2014-05-29 | 2015-12-09 | 한국건설기술연구원 | Member for connecting sheath of precast concrete structure, and construction method using the same |
| US20160265212A1 (en) * | 2015-03-13 | 2016-09-15 | National Applied Research Laboratories | Precast segment, stacking structure and energy dissipation column thereof |
| CN106192728A (en) * | 2015-03-13 | 2016-12-07 | 宋裕祺 | Precast segment, stacking structure thereof and energy dissipation column |
| CN206538880U (en) * | 2017-02-16 | 2017-10-03 | 上海市城市建设设计研究总院（集团）有限公司 | Compound shearing alignment pin |
| KR101930674B1 (en) * | 2018-04-13 | 2018-12-18 | 김연종 | Spliced Prestressed Concrete Girder and Fabrication Method for Thereof |
| CN209854527U (en) * | 2019-04-01 | 2019-12-27 | 西南交通大学 | Assembled hollow slab bridge structure |
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