CN106677049A - Assembled steel-concrete combination structure bridge and construction method - Google Patents
Assembled steel-concrete combination structure bridge and construction method Download PDFInfo
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- CN106677049A CN106677049A CN201710042560.7A CN201710042560A CN106677049A CN 106677049 A CN106677049 A CN 106677049A CN 201710042560 A CN201710042560 A CN 201710042560A CN 106677049 A CN106677049 A CN 106677049A
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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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Abstract
The invention relates to an assembled steel-concrete combination structure bridge. At least two prefabricated combination beams are jointed in the width direction of the bridge; each combination beam includes a concrete prefabricated bridge face plate and a steel beam for supporting the concrete prefabricated bridge face plate; a top flange steel plate positioned under the concrete prefabricated bridge face plate is arranged above the steel beam; shearing connection members for integrally connecting the concrete prefabricated bridge face plate and the top flange steel plate together are welded onto the top flange steel plate; longitudinal rib plates are arranged on edges of the top flange steel plate at two sides of the combined beam; and two adjacent combined beams are connected together through two adjacent rib plates. The invention also provides a construction method which can form an assembled steel-concrete combination structure bridge by performing bolting and cast-in-place joint concrete on prefabricated single combined beams. The assembled steel-concrete combination structure bridge is rapid and simple in construction, can avoid on-site modeling, and can avoid the problems of large area concrete cast-in-place, maintenance difficulties, and construction fractures.
Description
Technical field
The present invention relates to a kind of assembled steel-concrete combined structure bridge and its construction method.
Background technology
Steel and concrete are the primary structural materials for building bridge, and both materials have each on physical and mechanical properties
From Pros and Cons, steel and coagulation local soil type are combined by cooperation by certain mode, then can comprehensively play biography
The advantage of system xoncrete structure and steel construction, while limiting the appearance of its detrimental effect, so as to accomplish to make the best use of everything, makes the best use of the advantages and keeps away
It is short.Steel-concrete composite beam is relatively broad, a kind of bridge structure form of technology relative maturity that uses in recent years.And coagulation
The construction of native plate has material impact to the bearing capacity and durability of composite beam bridge.At present, the construction of concrete slab is mainly wrapped
Include following two：
（1）Poured in place concrete method.The method by the use of girder steel as support, poured in place concrete after formwork erection.Its advantage is：
The degree of compaction that the Concrete Filled at junction surface vibrates around shear connector is easily controllable, and the good integrity of concrete slab simultaneously can arbitrarily be made
Type.It has the disadvantage：Concrete drying shrinkage is produced tension by girder steel and shearing key constraint, and the construction for being also easy to produce early stage is split
Stricture of vagina；Poured in place concrete is because of the impact of the factors such as environment, weather, and its quality stability is poorer than prefabrication concrete slab；With
Precoated plate method is compared, and the construction period is long.
（2）Precast slab method.The method is the concrete slab that is prefabricated in the factory, and lifts rear cast in situs junction surface in place
The concrete of position, makes combination beam.Its advantage is：Concrete slab batch production is prefabricated, it is advantageously ensured that construction quality；Coagulation
Native dry shrinkage is basically completed, can be with effective control early stage construction crackle.It has the disadvantage：Between precast slab and girder steel
The gap filling at junction surface is weaker, affects the durability of structure；When bridge is wider, floorings direction across bridge also will be divided into several
Block, one side concrete cast-in-situ amount increases, and on the other hand increases the precoated plate installation difficulty at cantilever；Precast slab and steel
Beam is evenly arranged by group's nail anchoring combination, combination stressed effect not as WELDING STUDS.
The content of the invention
In view of this, it is an object of the invention to provide a kind of assembled steel-concrete combined structure bridge and its construction party
Method, reduces difficulty of construction, it is ensured that construction quality stability, improves structure tension performance.
The present invention is realized using below 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, girder steel top is provided with the top flange steel plate below concrete prefabricated floorings, upper limb balsh
It is welded with plate and concrete prefabricated floorings and top flange steel plate is connected into integral shear connector, in combination beam both sides
Top flange steel plate edge has longitudinal rib plate, and adjacent two panels combination beam is linked together by two neighbouring longitudinal rib plates.
Further, leave to pour 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 linked 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 are poured and formed.
Further, the gap of 5 ~ 20mm is left between the two longitudinal rib plates for linking 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, filled with high-strength cement slurry or rubber blanket in the gap between two longitudinal rib plates.
Further, the gap of 100 ~ 300mm is left between the two longitudinal rib plates for linking together, longitudinal rib plate is L-shaped or T
Shape, passes through junction steel plate and is bolted together between adjacent two panels combination beam；It is provided with cast-in-place seam positioned at two longitudinal ribs
Steel reinforcement cage between plate, steel reinforcement cage is extended upwardly in cast-in-place seam, and in the gap between two longitudinal rib plates seam coagulation is also poured
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 ring-shaped stirrup is horizontally arranged with, ring-shaped stirrup two ends pass concrete prefabricated floorings two sides；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 with the girder steel and top flange steel plate
There is ribbed stiffener.
Further, the top flange steel plate of combination beam is spaced by polylith top flange steel plate and is formed, and longitudinal rib plate is arranged on
On outermost top flange steel plate, concrete prefabricated floorings bottom surface is located at the interval between the steel plate of adjacent two top flange
It is provided with floorings floor.
A kind of construction method of formula steel-concrete combined structure bridge assembled as described above, comprises 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 of the edge are made in factory
Welding bends out longitudinal rib plate, and bolt hole is opened on longitudinal rib plate, and on the steel plate of top flange shear connector is welded；Then in top flange
Side template to casting concrete prefabricated bridge is installed, longitudinal reinforcement and ring-shaped stirrup, pour in colligation floorings on steel plate
Concrete prefabricated floorings are built, and carries out form removal after concrete curing；
（2）Steel-concrete combination beam is installed：Combination beam is transported to into job site, and will be entered combination beam by lifting or pushing and withstanding
Row strung alongside, between the concrete prefabricated floorings of adjacent two panels combination beam cast-in-place seam is reserved；Finally it is connected with phase
The longitudinal rib plate of adjacent two panels combination beam；
（3）Cast-in-place joint concrete construction：The colligation steel hoop in cast-in-place seam, steel hoop and adjacent two panels combination beam
Ring-shaped stirrup end weld or colligation together, and colligation links together with steel hoop and ring-shaped stirrup in cast-in-place seam
Longitudinal reinforcement, in cast-in-place seam pour joint concrete so that each combination beam connection is integral, carry out joint concrete
Maintenance；
（4）The construction of guardrail, anti-collision wall and sluicing duct；
（5）Surfacing Construction.
Further, step（1）In also need to longitudinal rib plate side weld shear connector；Step（3）In connect pouring
Need 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
In-site installation is transported to, construction is quick and easy, it is not necessary to live formwork erection, it is to avoid bridge floor large area concrete cast in situs, maintenance are tired
The problems such as difficult and construction crackle hardly possible control；And engage between concrete prefabricated floorings and girder steel good, it is to avoid group's nail anchoring,
Stress performance is good；Construction quality is improved, construction is quick and easy, the reduction of erection time, makes combinative structure reasonable stress.
To make the objects, technical solutions and advantages of the present invention become more apparent, below will be by specific embodiment and phase
Radix Aconiti Coreani figure, is described in further detail to the present invention.
Description of the drawings
Fig. 1 is the combination beam organigram of the embodiment of the present invention one；
Fig. 2 is the bridge structure schematic diagram of the embodiment of the present invention one；
Fig. 3 is connection diagram between the combination beam of the embodiment of the present invention one；
Fig. 4 is the combination beam organigram of the embodiment of the present invention two；
Fig. 5 is the bridge structure schematic diagram of the embodiment of the present invention two；
Fig. 6 is connection diagram between the combination beam of the embodiment of the present invention two；
Fig. 7 is connection diagram between the combination beam of the embodiment of the present invention three；
Fig. 8 is the bridge structure schematic diagram of the embodiment of the present invention four；
Fig. 9 is the bridge structure schematic diagram of the embodiment of the present invention five；
Figure 10 is the pre- bridge structure schematic diagram of the embodiment of the present invention six；
Label declaration in figure：The concrete prefabricated floorings of 1-；2- girder steels；3- shear connectors；Reinforcing bar in 4- floorings；5- is annular
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 cage.14- floorings floors, 15- steel hoops, 16- top flanges steel plate.
Specific embodiment
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, the section of girder steel 2 can for I-shaped, girder steel top is provided with upper below concrete prefabricated floorings
Edge of a wing steel plate 16, top flange steel plate 16 welds together with the upper end of girder steel 2；Being welded with top flange steel plate 16 will be concrete prefabricated
Floorings 1 and top flange steel plate 16 connect integral shear connector 3, have at the edge of top flange steel plate 16 of combination beam both sides
There is longitudinal rib plate 7, adjacent two panels combination beam is linked 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, it is to 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 is with girder steel and concrete
Prefabricated bridge 1, it is not necessary to live formwork erection；Concrete prefabricated floorings 1 are poured to be carried out in the factory, is reduced cast in situs and is supported
Shield is difficult, and construction crackle is easy to control, and quality stability is good, and engages between concrete prefabricated floorings 1 and girder steel good；Keep away
Exempt from group's nail anchoring, stress performance is good, improves construction quality, and construction is quick and easy, makes combinative structure reasonable stress.
In the present embodiment, leave to pour seam between the concrete prefabricated floorings of adjacent two panels combination beam to mix
The cast-in-place seam of solidifying soil 10, the width of cast-in-place seam is 300mm ~ 800mm；Be disposed with the top flange steel plate of cast-in-place seam crossing by
Joint concrete and the shear connector 3 linked 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 are poured and formed.
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 ring-shaped stirrup 5 is horizontally arranged with, the two ends of ring-shaped stirrup 5 pass the two sides of concrete prefabricated floorings 1, upper limb
Stretch out the both sides edge of concrete prefabricated floorings 1 in the both sides of the edge of balsh plate 16（I.e. top flange steel plate width is more than concrete prefabricated
The width of floorings 1）；The steel hoop 15 that two ring-shaped stirrup ends link together is provided with cast-in-place seam.
In the present embodiment, the gap of 5 ~ 20mm is left between the two longitudinal rib plates 7 for linking together, longitudinal rib plate 7 is flat board
Shape, offers bolt hole 8 on longitudinal rib plate 7, the longitudinal rib plate between adjacent two panels combination beam is linked together by bolt 9, bolt 9
Using high-strength bolt；Filled with high-strength cement slurry or rubber blanket in gap between two longitudinal rib plates.
In the present embodiment, it is provided with ribbed stiffener 6 on the girder steel and top flange steel plate.
A kind of construction method of formula steel-concrete combined structure bridge assembled as described above, comprises the following steps：
（1）Pre-manufactured steel-concrete combination beam：The girder steel with top flange steel plate 16, the both sides of top flange steel plate 16 are made in factory
Edge is welded or bends out longitudinal rib plate 7, and bolt hole 8 is opened on longitudinal rib plate 7, and shear connector 3 is welded on the steel plate of top flange；Then
Side template to casting concrete prefabricated bridge is installed on top flange steel plate 16, the He of longitudinal reinforcement 4 in colligation floorings
Ring-shaped stirrup 5, casting concrete prefabricated bridge 1, and carry out form removal after concrete curing；
（2）Steel-concrete combination beam is installed：Combination beam is transported to into job site, and is carried out combination beam by lifting or pushing and withstanding
Strung alongside, between the concrete prefabricated floorings of adjacent two panels combination beam cast-in-place seam is reserved；Finally connect adjacent with bolt 9
The longitudinal rib plate 7 of two panels combination beam；
（3）Cast-in-place joint concrete construction：The colligation steel hoop 15 in cast-in-place seam, steel hoop 15 is combined with adjacent two panels
The end of ring-shaped stirrup 5 welding of beam or colligation together, and under in cast-in-place seam colligation be connected with steel hoop and ring-shaped stirrup
Longitudinal reinforcement together, casting concrete causes each combination beam connection integral in cast-in-place seam, carries out seam coagulation
Soil maintenance；
（4）The construction of guardrail, anti-collision wall and sluicing duct；
（5）Surfacing Construction.
Embodiment two：As shown in Fig. 4 ~ 6, in the present embodiment, leave 100 between the two longitudinal rib plates 7 for linking together ~
The gap of 300mm, longitudinal rib plate is L-shaped, bolt hole is offered 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 with seam between two longitudinal rib plates is poured, seam is also poured in the gap between two longitudinal rib plates and is mixed
Solidifying soil 10, is welded with the shear connector 3 that joint concrete and top flange steel plate link together, in bridge floor on longitudinal rib plate 7
When wider, the gap between longitudinal rib plate forms stringer, beneficial 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 to 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
Build in the gap for needing before joint concrete 10 between two longitudinal rib plates and be put into steel reinforcement cage 13, the height of steel reinforcement cage 13 is higher than upper
Edge of a wing steel plate 16, in extending upwardly into cast-in-place seam.
Embodiment three：As shown in fig. 7, the present embodiment and the difference of embodiment one be longitudinal rib plate construction it is different, longitudinal rib
The web 11 that plate downside also has inside 90 ° bendings makes the L-shaped structure of longitudinal rib plate shape.
Example IV：As shown in figure 8, the present embodiment is with the difference of embodiment two：The present embodiment girder steel section is case
Tee section.
Embodiment five：As shown in figure 9, the present embodiment is with the difference of embodiment two：The present embodiment girder steel section is groove
Tee section.
Embodiment six：As shown in Figure 10, the present embodiment is that top flange steel plate construction is different from the difference of embodiment two, this
In embodiment, the top flange steel plate of combination beam is spaced by polylith top flange steel plate and is formed, and longitudinal rib plate is arranged in outermost
On the top flange steel plate of side, top flange steel plate and the girder steel positioned at middle part welds together；Concrete prefabricated floorings bottom surface position
Interval between the steel plate of adjacent two top flange is provided with floorings floor.
The object, technical solutions and advantages of the present invention are further described by above-listed preferred embodiment, are answered
It is understood by, the foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
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 the steel to support concrete prefabricated floorings
Beam, girder steel top is provided with the top flange steel plate below concrete prefabricated floorings, and being welded with the steel plate of top flange will be mixed
Solidifying soil prefabricated bridge and top flange steel plate connect integral shear connector, at the top flange steel plate edge of combination beam both sides
With longitudinal rib plate, adjacent two panels combination beam is linked together by two neighbouring longitudinal rib plates.
2. assembled steel-concrete combined structure bridge according to claim 1, it is characterised in that：Adjacent two panels combination
The cast-in-place seam for pouring seam concrete is left between the concrete prefabricated floorings of beam, the width of cast-in-place seam is
300mm ~ 800mm, is disposed with joint concrete on the top flange steel plate of cast-in-place seam crossing and is located at its underpart top flange steel plate
The shear connector for linking together.
3. assembled steel-concrete combined structure bridge according to claim 2, 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
Form.
4. assembled steel-concrete combined structure bridge according to claim 2, it is characterised in that：Link together
The gap of 5 ~ 20mm is left between two longitudinal rib plates, longitudinal rib plate is the abdomen of plate shaped or L-shaped, plate shaped longitudinal rib plate or L-shaped longitudinal rib plate
Bolt hole is offered on plate, the longitudinal rib plate between adjacent two panels combination beam is bolted together, between two longitudinal rib plates
Filled with high-strength cement slurry or rubber blanket in gap.
5. assembled steel-concrete combined structure bridge according to claim 2, it is characterised in that：Link together
The gap of 100 ~ 300mm is left between two longitudinal rib plates, longitudinal rib plate is L-shaped or inverted T-shaped, by connection between adjacent two panels combination beam
Steel plate and it is bolted together；The steel reinforcement cage being provided with cast-in-place seam between two longitudinal rib plates, steel reinforcement cage is extended upwardly into
In cast-in-place seam, seam concrete is also poured in the gap between two longitudinal rib plates, be welded with joint concrete on longitudinal rib plate
The shear connector linked together with top flange steel plate.
6. assembled steel-concrete combined structure bridge according to claim 2, it is characterised in that：Coagulation in combination beam
Reinforcing bar is distributed with double-deck longitudinally disposed floorings in native prefabricated bridge and ring-shaped stirrup is horizontally arranged with, annular
Stirrup two ends pass concrete prefabricated floorings two sides；It is provided with cast-in-place seam and two ring-shaped stirrup ends links together
Steel hoop.
7. 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, on the girder steel and top flange steel plate ribbed stiffener is provided with.
8. assembled steel-concrete combined structure bridge according to claim 1, it is characterised in that：The upper limb of combination beam
Balsh plate is spaced by polylith top flange steel plate and is formed, and longitudinal rib plate is arranged on outermost top flange steel plate, coagulation
The interval that native prefabricated bridge bottom surface is located between the steel plate of adjacent two top flange is provided with floorings floor.
9. a kind of construction method of assembled steel-concrete combined structure bridge as claimed in claim 1, it is characterised in that：Bag
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
Welding bends out longitudinal rib plate, and bolt hole is opened on longitudinal rib plate, and on the steel plate of top flange shear connector is welded；Then in top flange
Side template to casting concrete prefabricated bridge is installed, longitudinal reinforcement and ring-shaped stirrup, pour in colligation floorings on steel plate
Concrete prefabricated floorings are built, and carries out form removal after concrete curing；
（2）Steel-concrete combination beam is installed：Combination beam is transported to into job site, and will be entered combination beam by lifting or pushing and withstanding
Row strung alongside, between the concrete prefabricated floorings of adjacent two panels combination beam cast-in-place seam is reserved；Finally it is connected with phase
The longitudinal rib plate of adjacent two panels combination beam；
（3）Cast-in-place joint concrete construction：The colligation steel hoop in cast-in-place seam, steel hoop and adjacent two panels combination beam
Ring-shaped stirrup end weld or colligation together, and colligation links together with steel hoop and ring-shaped stirrup in cast-in-place seam
Longitudinal reinforcement, in cast-in-place seam pour joint concrete so that each combination beam connection is integral, carry out joint concrete
Maintenance；
（4）The construction of guardrail, anti-collision wall and sluicing duct；
（5）Surfacing Construction.
10. the construction method of assembled steel-concrete combined structure bridge according to claim 9, 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 joint concrete is poured
Steel reinforcement cage is put in gap between longitudinal rib plate.
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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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