CN106677049B - Assembled steel-concrete combined structure bridge and construction method - Google Patents
Assembled steel-concrete combined structure bridge and construction method Download PDFInfo
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- CN106677049B CN106677049B CN201710042560.7A CN201710042560A CN106677049B CN 106677049 B CN106677049 B CN 106677049B CN 201710042560 A CN201710042560 A CN 201710042560A CN 106677049 B CN106677049 B CN 106677049B
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- longitudinal rib
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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
- E01D1/00—Bridges in general
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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
- E01D19/00—Structural or constructional details of bridges
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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
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The present invention relates to a kind of assembled steel concrete combined structure bridges, the bridge width direction is at least spliced by two panels Prefabricated combined beam, the combination beam includes concrete prefabricated floorings and to support the girder steel of concrete prefabricated floorings, the top flange steel plate being provided with above girder steel below concrete prefabricated floorings, it is welded on the steel plate of top flange and concrete prefabricated floorings is connected into integral shear connector with top flange steel plate, there is longitudinal rib plate at the top flange steel plate edge of combination beam both sides, adjacent two panels combination beam is linked together by two neighbouring longitudinal rib plates.The present invention also provides prefabrication monolithic combination beam, scene forms the construction method of the assembled steel concrete combined structure bridge of whole stress by bolt and cast-in-place joint concrete.Present invention construction is quick and easy, does not need live formwork erection, avoids the problems such as cast in situs of bridge floor large area concrete, maintenance are difficult and crackle of constructing is difficult to control.
Description
Technical field
The present invention relates to a kind of assembled steel-concrete combined structure bridge and its construction methods.
Background technology
Steel and concrete are the primary structural materials for building bridge, both materials have each on physical and mechanical properties
From Pros and Cons, steel and coagulation local soil type are combined by co-operations by certain mode, then can integrate performance biography
The advantage of system concrete structure and steel construction, while the appearance of its detrimental effect is limited, to accomplish to make the best use of everything, makes the best use of the advantages and keep away
It is short.Steel-concrete composite beam is to use a kind of relatively broad, bridge structure form of technology relative maturity in recent years.And coagulation
The construction of native plate has great influence to the bearing capacity and durability of composite beam bridge.Currently, the construction of concrete slab is mainly wrapped
It includes following two：
（1）Poured in place concrete method.This method is using girder steel as holder, poured in place concrete after formwork erection.Its is excellent
Putting is：The compactness that the Concrete Filled at joint portion vibrates around shear connector is easily controllable, and the good integrity of concrete slab simultaneously can
Arbitrary moulding.The disadvantage is that：Concrete drying shrinkage is generated tensile stress by girder steel and shearing key constraint, is also easy to produce applying for early stage
Work crackle；Poured in place concrete is because of the influence of the factors such as environment, weather, and quality stability is than prefabrication concrete slab
Difference；Compared with prefabricated board method, the construction period is long.
（2）Precast slab method.This method is the concrete slab that is prefabricated in the factory, and lifts rear cast in situs joint portion in place
The concrete of position, makes combination beam.Its advantage is that：Concrete slab batch production is prefabricated, it is advantageously ensured that construction quality；Coagulation
Dry shrink of soil has been basically completed, and can effectively control early stage construction crackle.The disadvantage is that：Between precast slab and girder steel
The gap filling at joint portion is weaker, influences the durability of structure；When bridge is wider, floorings direction across bridge will also be divided into several
Block, one side concrete cast-in-situ amount increase, and on the other hand increase the prefabricated board installation difficulty at cantilever；Precast slab and steel
Beam follows closely anchoring combination by group, and combination stressed effect is evenly arranged not as good as WELDING STUDS.
Invention content
In view of this, the object of the present invention is to provide a kind of assembled steel-concrete combined structure bridge and its construction parties
Method reduces difficulty of construction, ensures construction quality stability, improves structure tension performance.
The present invention is realized using following scheme：A kind of assembled steel-concrete combined structure bridge, the bridge width side
To being at least spliced by two panels Prefabricated combined beam, the combination beam includes concrete prefabricated floorings and to support concrete
The girder steel of prefabricated bridge, the top flange steel plate being provided with above girder steel below concrete prefabricated floorings, upper limb balsh
It is welded on plate and concrete prefabricated floorings is connected into integral shear connector with top flange steel plate, in combination beam both sides
There is longitudinal rib plate, adjacent two panels combination beam to be linked together by two neighbouring longitudinal rib plates at top flange steel plate edge.
Further, there are pouring seam concrete between the concrete prefabricated floorings of adjacent two panels combination beam
Cast-in-place seam, the width of cast-in-place seam is 300mm ~ 800mm, is disposed with seam coagulation on the top flange steel plate of wet seam crossing
Soil and the shear connector to link together positioned at its underpart top flange steel plate.
Further, concrete prefabricated floorings and joint concrete are by normal concrete or ultra-high performance concrete or steel
Fiber concrete or high performance concrete pour.
Further, there are the gap of 5 ~ 20mm between the two longitudinal rib plates to link together, longitudinal rib plate is plate shaped or L
Bolt hole is offered on the web of shape, plate shaped longitudinal rib plate or L-shaped longitudinal rib plate, the longitudinal rib plate between adjacent two panels combination beam passes through
It is bolted together, high-strength cement slurry or rubber pad is filled in the gap between two longitudinal rib plates.
Further, there are the gap of 100 ~ 300mm, longitudinal rib plate T for L-shaped or between the two longitudinal rib plates to link together
Shape by junction steel plate and is bolted together between adjacent two panels combination beam；It is provided in cast-in-place seam positioned at two longitudinal ribs
Steel reinforcement cage between plate, steel reinforcement cage extend upwardly into cast-in-place seam, and seam coagulation is also poured in the gap between two longitudinal rib plates
Soil is welded with the shear connector that joint concrete and top flange steel plate link together on longitudinal rib plate.
Further, reinforcing bar in the longitudinally disposed floorings of distributing double layer in concrete prefabricated floorings 1 in combination beam
And it is horizontally arranged with ring-shaped stirrup, ring-shaped stirrup both ends are pierced by concrete prefabricated floorings two sides；It is set in cast-in-place seam
It is equipped with the steel hoop that two ring-shaped stirrup ends link together.
Further, the girder steel section is I-shaped, box-shaped or flute profile, is respectively provided on the girder steel and top flange steel plate
There is ribbed stiffener.
Further, the top flange steel plate of combination beam is alternatively arranged by polylith top flange steel plate, and the setting of longitudinal rib plate exists
On top flange steel plate on the outermost side, interval of the concrete prefabricated floorings bottom surface between the steel plate of adjacent two top flange
It is provided with floorings floor.
A kind of construction method of assembled steel-concrete combined structure bridge as described above, includes the following steps：
（1）Pre-manufactured steel-concrete combination beam：The girder steel that top flange steel plate has, top flange steel plate both sides are made in factory
Edge welds or bends out longitudinal rib plate, and bolt hole is opened on longitudinal rib plate, shear connector is welded on the steel plate of top flange；Then upper
Side template to casting concrete prefabricated bridge is installed on the steel plate of the edge of a wing, binds longitudinal reinforcement and circumferential band in floorings
Muscle, casting concrete prefabricated bridge, and carry out form removal after concrete curing；
（2）Steel-concrete combination beam installation：Combination beam is transported to construction site, and will will be combined by lifting or ejection
Beam carries out strung alongside, and cast-in-place seam is reserved between the concrete prefabricated floorings of adjacent two panels combination beam；Finally connected with bolt
Connect the longitudinal rib plate of adjacent two panels combination beam；
（3）Cast-in-place joint concrete construction：Steel hoop is bound in cast-in-place seam, steel hoop is combined with adjacent two panels
The ring-shaped stirrup end of beam is welded or is bound together, and binds in cast-in-place seam and be connected to steel hoop and ring-shaped stirrup
Longitudinal reinforcement together pours joint concrete into cast-in-place seam and makes each combination beam connection integral, it is mixed to carry out seam
Solidifying soil maintenance；
（4）Guardrail, anti-collision wall and the construction of sluicing duct；
（5）Surfacing Construction.
Further, step（1）In also need to longitudinal rib plate side weld shear connector；Step（3）In connect pouring
It needs to be put into steel reinforcement cage in the gap between two longitudinal rib plates before seam concrete.
Compared with prior art, the invention has the advantages that：Bridge of the present invention is first prefabricated in the factory combination beam again
It is transported to in-site installation, construction is quick and easy, does not need live formwork erection, avoids the cast in situs of bridge floor large area concrete, maintenance tired
The problems such as difficult and construction crackle is difficult to control；And it is engaged between concrete prefabricated floorings and girder steel well, group is avoided to follow closely anchoring,
Stress performance is good；Construction quality is improved, construction is quick and easy, shortens the construction period, makes composite structure reasonable stress.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, specific embodiment and phase will be passed through below
Attached drawing is closed, invention is further described in detail.
Description of the drawings
Fig. 1 is one combination beam organigram of the embodiment of the present invention；
Fig. 2 is one bridge structure schematic diagram of the embodiment of the present invention；
Fig. 3 is connection diagram between one combination beam of the embodiment of the present invention；
Fig. 4 is two combination beam organigram of the embodiment of the present invention；
Fig. 5 is two bridge structure schematic diagram of the embodiment of the present invention；
Fig. 6 is connection diagram between two combination beam of the embodiment of the present invention；
Fig. 7 is connection diagram between three combination beam of the embodiment of the present invention；
Fig. 8 is four bridge structure schematic diagram of the embodiment of the present invention；
Fig. 9 is five bridge structure schematic diagram of the embodiment of the present invention；
Figure 10 is six pre- bridge structure schematic diagram of the embodiment of the present invention；
Figure label explanation：The concrete prefabricated floorings of 1-；2- girder steels；3- shear connectors；Reinforcing bar in 4- floorings；5-
Ring-shaped stirrup；6- ribbed stiffeners；7- longitudinal rib plates；8- bolts hole；9- bolts；10- joint concretes；11- webs；12- junction steel plates；
13- steel reinforcement cages.14- floorings floor, 15- steel hoops, the top flanges 16- steel plate.
Specific implementation mode
Implement one：As shown in Fig. 1 ~ 3, a kind of assembled steel-concrete combined structure bridge, the bridge width direction is extremely
Few to be spliced by two panels combination beam, the combination beam includes concrete prefabricated floorings 1 and to support concrete prefabricated bridge
The girder steel 2 of panel 1,2 section of girder steel can be it is I-shaped, be provided with above girder steel upper below concrete prefabricated floorings
Edge of a wing steel plate 16, top flange steel plate 16 weld together with 2 upper end of girder steel；Being welded on top flange steel plate 16 will be concrete prefabricated
Floorings 1 and top flange steel plate 16 connect integral shear connector 3, have at 16 edge of top flange steel plate of combination beam both sides
There are longitudinal rib plate 7, adjacent two panels combination beam to link together by two neighbouring longitudinal rib plates 7, concrete prefabricated floorings 1, upper limb
The combination beam that balsh plate 16 and girder steel 2 are formed integrally prefabrication can be transported to in-site installation again, avoid cast in situs and support
Shield is difficult, and construction crackle is easy to control, and quality stability is good.
Be prefabricated in the factory combination beam when, using top flange steel plate as bed die, prefabricated combination beam carry girder steel and concrete
Prefabricated bridge 1 does not need live formwork erection；Concrete prefabricated floorings 1 pour to carry out in the factory, reduces cast in situs and supports
Shield is difficult, and construction crackle is easy to control, and quality stability is good, and is engaged between concrete prefabricated floorings 1 and girder steel good；It keeps away
Exempt from group and follow closely anchoring, stress performance is good, improves construction quality, construction is quick and easy, makes composite structure reasonable stress.
In the present embodiment, there are mixed to pour seam between the concrete prefabricated floorings of adjacent two panels combination beam
The width of the cast-in-place seam of solidifying soil 10, cast-in-place seam is 300mm ~ 800mm；Be disposed on the top flange steel plate of cast-in-place seam crossing by
Joint concrete and the shear connector 3 to link together positioned at its underpart top flange steel plate.
In the present embodiment, concrete prefabricated floorings and joint concrete are by normal concrete or ultra-high performance concrete
Or steel fiber reinforced concrete or high performance concrete pour.
In the present embodiment, in combination beam in concrete prefabricated floorings 1 in the longitudinally disposed floorings of distributing double layer
Reinforcing bar 4 and it is horizontally arranged with ring-shaped stirrup 5,5 both ends of ring-shaped stirrup are pierced by 1 two sides of concrete prefabricated floorings, upper limb
Concrete prefabricated 1 two sides edge of floorings is stretched out in 16 both sides of the edge of balsh plate（I.e. top flange steel plate width is more than concrete prefabricated
1 width of floorings）；The steel hoop 15 that two ring-shaped stirrup ends link together is provided in cast-in-place seam.
In the present embodiment, there are the gap of 5 ~ 20mm between the two longitudinal rib plates 7 to link together, longitudinal rib plate 7 is tablet
Shape offers bolt hole 8 on longitudinal rib plate 7, and the longitudinal rib plate between adjacent two panels combination beam is linked together by bolt 9, bolt 9
Using high-strength bolt；High-strength cement slurry or rubber pad are filled in gap between two longitudinal rib plates.
In the present embodiment, it is both provided with ribbed stiffener 6 on the girder steel and top flange steel plate.
A kind of construction method of assembled steel-concrete combined structure bridge as described above, includes the following steps：
（1）Pre-manufactured steel-concrete combination beam：The girder steel with top flange steel plate 16, top flange steel plate 16 are made in factory
Both sides of the edge weld or bend out longitudinal rib plate 7, and bolt hole 8 is opened on longitudinal rib plate 7, shear connector 3 is welded on the steel plate of top flange；
Then side template to casting concrete prefabricated bridge on top flange steel plate 16 is installed, longitudinal reinforcement in floorings is bound
4 and ring-shaped stirrup 5, casting concrete prefabricated bridge 1, and carry out form removal after concrete curing；
（2）Steel-concrete combination beam installation：Combination beam is transported to construction site, and by lifting or ejection by combination beam
Strung alongside is carried out, cast-in-place seam is reserved between the concrete prefabricated floorings of adjacent two panels combination beam；Finally bolt 9 is used to connect
The longitudinal rib plate 7 of adjacent two panels combination beam；
（3）Cast-in-place joint concrete construction：Steel hoop 15, steel hoop 15 and adjacent two panels are bound in cast-in-place seam
5 end of ring-shaped stirrup of combination beam weld or binding together, and under binding and steel hoop and ring-shaped stirrup in cast-in-place seam
The longitudinal reinforcement to link together, into cast-in-place seam, casting concrete makes each combination beam connection integral, carries out seam
Concrete curing；
（4）Guardrail, anti-collision wall and the construction of sluicing duct；
（5）Surfacing Construction.
Embodiment two：As shown in Fig. 4 ~ 6, in the present embodiment, between the two longitudinal rib plates 7 to link together there are 100 ~
The gap of 300mm, longitudinal rib plate are L-shaped, offer bolt hole on the web 11 of L-shaped longitudinal rib plate, between adjacent two panels combination beam
Longitudinal rib plate is linked together by junction steel plate 12 and bolt 9, is connected by bolt 9 between junction steel plate 12 and web 11；It is existing
The steel reinforcement cage 13 being additionally provided in seam between two longitudinal rib plates is poured, it is mixed that seam is also poured in the gap between two longitudinal rib plates
Soil 10 is coagulated, the shear connector 3 that joint concrete and top flange steel plate link together is welded on longitudinal rib plate 7, in bridge floor
When wider, the gap between longitudinal rib plate forms stringer, is conducive to main beam stress, while reducing the wet seam construction volume of concrete.
The construction method of the present embodiment assembled steel-concrete combined structure bridge only needs the construction party in embodiment one
Increase following steps, step on the basis of method（1）In also need to longitudinal rib plate side weld shear connector 3；Step（2）In pouring
It needs to be put into steel reinforcement cage 13 in the gap between two longitudinal rib plates before building joint concrete 10, the height of steel reinforcement cage 13 is higher than upper
Edge of a wing steel plate 16 extends upwardly into cast-in-place seam.
Embodiment three：As shown in fig. 7, the difference between this embodiment and the first embodiment lies in the construction difference of longitudinal rib plate, longitudinal rib
Web 11 on the downside of plate also with inside 90 ° bendings makes longitudinal rib plate form L-shaped structure.
Example IV：As shown in figure 8, the difference between the present embodiment and the second embodiment lies in that：The present embodiment girder steel section is case
Tee section.
Embodiment five：As shown in figure 9, the difference between the present embodiment and the second embodiment lies in that：The present embodiment girder steel section is slot
Tee section.
Embodiment six：As shown in Figure 10, the difference between the present embodiment and the second embodiment lies in that top flange steel plate construction is different, this
In embodiment, the top flange steel plate of combination beam is alternatively arranged by polylith top flange steel plate, and longitudinal rib plate is arranged in outermost
On the top flange steel plate of side, top flange steel plate and girder steel positioned at middle part weld together；Concrete prefabricated floorings bottom surface position
Interval between the steel plate of adjacent two top flange is provided with floorings floor.
Above-listed preferred embodiment, has been further described the object, technical solutions and advantages of the present invention, is answered
Understand, the foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (6)
1. a kind of assembled steel-concrete combined structure bridge, it is characterised in that：The bridge width direction is at least pre- by two panels
Combination beam processed is spliced, and the combination beam includes concrete prefabricated floorings and to support the steel of concrete prefabricated floorings
Beam, girder steel top are provided with the top flange steel plate below concrete prefabricated floorings, and being welded on the steel plate of top flange will be mixed
Solidifying soil prefabricated bridge connects integral shear connector with top flange steel plate, the top flange steel plate edge in combination beam both sides
With longitudinal rib plate, adjacent two panels combination beam is linked together by two neighbouring longitudinal rib plates；The concrete of adjacent two panels combination beam
There are to pour the cast-in-place seam of seam concrete between prefabricated bridge, the width of cast-in-place seam is 300mm ~ 800mm,
It is disposed on the top flange steel plate of cast-in-place seam crossing by joint concrete and is located at what its underpart top flange steel plate linked together
Shear connector；There are the gap of 100 ~ 300mm between the two longitudinal rib plates to link together, longitudinal rib plate is L-shaped or inverted T-shaped, phase
By junction steel plate and being bolted together between adjacent two panels combination beam；It is provided in cast-in-place seam between two longitudinal rib plates
Steel reinforcement cage, steel reinforcement cage extends upwardly into cast-in-place seam, and seam concrete, longitudinal rib are also poured in the gap between two longitudinal rib plates
The shear connector that joint concrete and top flange steel plate link together is welded on plate；Concrete prefabricated bridge in combination beam
Reinforcing bar in the double-deck longitudinally disposed floorings is distributed in panel and is horizontally arranged with ring-shaped stirrup, ring-shaped stirrup both ends
It is pierced by concrete prefabricated floorings two sides；The annular steel that two ring-shaped stirrup ends link together is provided in cast-in-place seam
Muscle.
2. assembled steel-concrete combined structure bridge according to claim 1, it is characterised in that：Concrete prefabricated bridge
Panel and joint concrete are poured by normal concrete or ultra-high performance concrete or steel fiber reinforced concrete or high performance concrete
It forms.
3. assembled steel-concrete combined structure bridge according to claim 1, it is characterised in that：The girder steel section
For I-shaped, box-shaped or flute profile, ribbed stiffener is both provided on the girder steel and top flange steel plate.
4. assembled steel-concrete combined structure bridge according to claim 1, it is characterised in that：The upper limb of combination beam
Balsh plate is alternatively arranged by polylith top flange steel plate, and longitudinal rib plate is arranged on outermost top flange steel plate, coagulation
Interval of the native prefabricated bridge bottom surface between the steel plate of adjacent two top flange is provided with floorings floor.
5. a kind of construction method of assembled steel-concrete combined structure bridge as described in claim 1, it is characterised in that：Packet
Include following steps：
（1）Pre-manufactured steel-concrete combination beam：The girder steel with top flange steel plate, top flange steel plate both sides of the edge are made in factory
Longitudinal rib plate is welded or bent out, bolt hole is opened on longitudinal rib plate, shear connector is welded on the steel plate of top flange；Then in top flange
Side template to casting concrete prefabricated bridge is installed on steel plate, longitudinal reinforcement and ring-shaped stirrup in floorings is bound, pours
Concrete prefabricated floorings are built, and carry out form removal after concrete curing；
（2）Steel-concrete combination beam installation：Combination beam is transported to construction site, and will by lifting or ejection by combination beam into
Row strung alongside reserves cast-in-place seam between the concrete prefabricated floorings of adjacent two panels combination beam；Finally it is connected with phase
The longitudinal rib plate of adjacent two panels combination beam；
（3）Cast-in-place joint concrete construction：Steel hoop, steel hoop and adjacent two panels combination beam are bound in cast-in-place seam
Ring-shaped stirrup end is welded or is bound together, and binds in cast-in-place seam and link together with steel hoop and ring-shaped stirrup
Longitudinal reinforcement, joint concrete is poured into cast-in-place seam and makes the connection of each combination beam integral, carries out joint concrete
Maintenance；
（4）Guardrail, anti-collision wall and the construction of sluicing duct；
（5）Surfacing Construction.
6. the construction method of assembled steel-concrete combined structure bridge according to claim 5, it is characterised in that：Step
Suddenly（1）In also need to longitudinal rib plate side weld shear connector；Step（3）In needed two before pouring joint concrete
It is put into steel reinforcement cage in gap between longitudinal rib plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710042560.7A CN106677049B (en) | 2017-01-20 | 2017-01-20 | Assembled steel-concrete combined structure bridge and construction method |
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| CN201710042560.7A CN106677049B (en) | 2017-01-20 | 2017-01-20 | Assembled steel-concrete combined structure bridge and construction method |
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| CN106677049B true CN106677049B (en) | 2018-08-17 |
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| CN115404762A (en) * | 2022-10-10 | 2022-11-29 | 上海市政工程设计研究总院（集团）有限公司 | Pier top longitudinal continuous structure of assembled beam bridge and construction method thereof |
| CN115928557A (en) * | 2023-01-04 | 2023-04-07 | 内蒙古工业大学 | Light-weight high-strength high-toughness concrete plate steel box girder combined assembly type structure and preparation method thereof |
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