CN110158464A - A kind of novel shear key combination beam and its construction method - Google Patents
A kind of novel shear key combination beam and its construction method Download PDFInfo
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- CN110158464A CN110158464A CN201910474941.1A CN201910474941A CN110158464A CN 110158464 A CN110158464 A CN 110158464A CN 201910474941 A CN201910474941 A CN 201910474941A CN 110158464 A CN110158464 A CN 110158464A
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- shear key
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- 238000010276 construction Methods 0.000 title claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 153
- 239000010959 steel Substances 0.000 claims abstract description 153
- 239000004567 concrete Substances 0.000 claims abstract description 111
- 229910000754 Wrought iron Inorganic materials 0.000 claims description 35
- 229920006253 high performance fiber Polymers 0.000 claims description 15
- 230000002787 reinforcement Effects 0.000 claims description 8
- 238000005056 compaction Methods 0.000 claims description 7
- 238000001704 evaporation Methods 0.000 claims description 7
- 239000011150 reinforced concrete Substances 0.000 claims description 6
- 238000003032 molecular docking Methods 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 210000003205 muscle Anatomy 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- E01D19/00—Structural or constructional details of bridges
- E01D19/12—Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D19/125—Grating or flooring for bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
-
- 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
- E01D2101/30—Metal
Abstract
The present invention provides a kind of novel shear key combination beams, including concrete slab (1), stirrup (2), shear key (3) and girder steel (4), the girder steel (4) is set to the concrete slab (1) lower surface, the concrete slab (1) is internal to be provided with shear key (3) at bottom surface, the stirrup (2) is vertically installed in the concrete slab (1) inside, and the shear key (3) and the stirrup (2) contact position weld.A kind of novel shear key combination beam of the present invention realizes the reserved hole location of concrete slab and accurately docks with girder steel connector, ensure overall performance of the concrete slab after reserved hole location, steel construction and concrete structure are connected to become whole co-operation by the effect for giving full play to shear connector.
Description
Technical field
The present invention relates to field of bridge construction, and in particular to a kind of combination beam.
Background technique
Steel-concrete combined structure is that one kind is formed steel construction and concrete structure integrally altogether by shear connector
With the structure type of work, shear connector is the key that steel-concrete combined structure stress performance.This kind of structure type can
The mechanical property of steel and concrete material is given full play to, has the small stability of the big self weight of the high rigidity of good bearing capacity good
And the advantages that easy for construction, in engineering fields extensive applications such as bridge building structure piping lanes.
With the development of engineering technology, requirement of the people to construction technology and construction quality is higher and higher, fabricated construction
The application of technology is further extensive.The construction of Standard formula can be achieved component and all complete in factory, can be improved component quality,
Construction material dosage is reduced, for building energy conservation important in inhibiting.Fabricated construction can greatly reduce site operation workload
And the time, stringent and site operation bad environments engineering important roles are required for the construction period.
The problem of how shear connector is set is faced in the fabricated construction of the mixed composite structure of steel-.At present using the most
Extensive Welded-Stud Conectors need multi-point to coordinate, and reserving point in precast slab can be since concrete be in hardening process
In contraction and change in location occurs, be unable to complete in installation process multi-point matching.Perforated steel plate connector is due to along beam
It is longitudinally continuous and runs through, longitudinal direction can not be reserved in precast slab through seam, and cannot achieve perforated steel plate connector and mix
Effective connection of solidifying soil prefabricated board.Concrete prefabricated board reserves large hole in separate type peg group's connection method existing at present
Hole, longitudinal reinforcement and transverse steel between reserving hole are all truncated, and seriously affect the globality of concrete slab, and peg group with
Power transmission is only carried out by rear pouring concrete between precast slab, Welded-Stud Conectors be unable to give full play effect by steel construction and
Concrete structure is connected to become entirety.
The prefabricated construction of steel-concrete combined structure needs to solve the problems, such as three aspects of connector.First, prefabricated mixed
How reserved hole location in concrete board is accurately docked with the Welded-Stud Conectors on steel construction.Second, how to reduce prefabricated mixed
Concrete board reserving hole reduces its influence to precast slab globality.How third gives full play to shear connector
Effect, is connected to become entirety for steel construction and concrete structure.
Patent CN201120487335 disclose it is a kind of in bridge construction fasten concrete shear key, if including by
The shear key ontology that shear key unit interconnected is constituted is done, the shear key unit includes support plate, the support plate
Both ends are provided with mounting plate, and several groups through-hole is provided on the mounting plate, is provided with support column between every group of through-hole.
Though the patent is using the entirety being interconnected to constitute using shear key unit, since its supporting plate structure is more multiple
It is miscellaneous, cause manufacturing process equally complex；Though being caused between its each shear key using its shear key unit set-up mode simultaneously
Entirety is so formed, but is affected to concrete globality.
Now need a kind of reserved hole location in precast slab that can carry out with the Welded-Stud Conectors on steel construction accurate
Docking；Concrete slab preformed hole is smaller；Steel construction and concrete structure are connected to become to whole combination beam.
Summary of the invention
The present invention is docked precisely to solve the reserved hole location of concrete slab in the prior art with Welded-Stud Conectors on steel construction
The problem of degree reduces the influence to precast slab globality, gives full play to the effect of shear connector provides a kind of new
Type shear key combination beam, concrete slab globality is high, and preformed hole is smaller, is easy to accurately dock, solves the above problem.
The present invention provides a kind of novel shear key combination beam, including concrete slab, stirrup, shear key and girder steel, girder steels
It is set to concrete slab lower surface, is provided with shear key at bottom surface inside concrete slab, stirrup is vertically installed in coagulation
Native intralamellar part, shear key and stirrup contact position weld.
A kind of novel shear key combination beam of the present invention, it is preferred that, shear key includes pin rod iron, with holes
Steel plate, pre-buried perforated steel plate, perforated steel plate are provided with mounting hole, and perforated steel plate is vertically arranged at girder steel upper surface, pin steel plate
It is set in mounting hole, pre-buried perforated steel plate plate face is provided with through-hole, and perforated steel plate is set in through-hole, pre-buried perforated steel plate edge
Embedded in concrete structure basal surface position.Pre-buried perforated steel plate both ends should be neat with template top, prevents in concreting process
It buries steel plate position and changes and cannot carry out Matching installation with the connector being pre-designed.
A kind of novel shear key combination beam of the present invention, it is preferred that, stirrup is including disconnection stirrup and commonly
Stirrup disconnects stirrup and is uniformly arranged on the perpendicular where pre-buried perforated steel plate through-hole, and disconnection stirrup both ends are set to pre-buried
Perforated steel plate through-hole two sides bottom surface, common stirrup are uniformly arranged on the perpendicular of pre-buried perforated steel plate through-hole two sides.
By burying pin rod iron mounting plate in concrete structure, the hole location merging precision of shear connector is improved；Pass through
Pin rod iron and pin rod iron mounting plate realize simplicity, quickly, are reliably connected.Perforated steel plate is arranged reserved at design position
Perforated steel plate is installed in hole, and both ends and template top are neat, guarantees that position does not change in concreting process, is realized anti-
Connector hole location is cut accurately to dock.Perforated steel plate after the installation is completed, is laid with common stirrup and disconnects stirrup in concrete structure,
And weld it with pre-buried perforated steel plate, the longitudinal reinforcement at the alternative position of perforated steel plate avoids at the position
Longitudinal reinforcement is disconnected due to reserving hole, improves structural integrity.
Connector connection method is to dock after the completion of concrete slab and prefabricated steel construction according to perforated steel plate through-hole hole location
After the completion, pin rod iron is inserted into pin rod iron mounting plate, that completes shear connector is reliably fixed connection.
Two kinds of preformed holes on pin rod iron mounting plate and perforated steel plate consider suitably to amplify, to consider concrete shrinkage
It is influenced with various errors.
A kind of novel shear key combination beam of the present invention, it is preferred that, pre-buried perforated steel plate and stirrup weld.
A kind of novel shear key combination beam of the present invention, it is preferred that, perforated steel plate is longitudinal or horizontal along girder steel
To arrangement.Pin steel column connecting plate can also improve lateral shear behavior along the lateral arrangement of beam.Pin steel column connecting plate can be along beam
It is longitudinally arranged, longitudinal shear resistance performance can be improved.
A kind of novel shear key combination beam of the present invention, it is preferred that, pin rod iron includes the first rotary table, the
Two rotary tables, cylinder interconnecting piece, first the second rotary table of rotary table and cylinder interconnecting piece are coaxial, the first rotary table and the second rotary table bottom surface
It is set to two bottom surface of cylinder interconnecting piece, the first rotary table and the second rotary table bottom surface area≤cylinder interconnecting piece base area.
Splicing efficiency is improved convenient for positioning when splicing using the pin rod iron of class shuttle shape.
A kind of novel shear key combination beam of the present invention, it is preferred that, pin rod iron and mounting hole are interference
Cooperation.
The amplification of 1~2mm is considered as when aperture, to consider that various errors influence.
A kind of novel shear key combination beam of the present invention, it is preferred that, concrete slab includes concrete slab sheet
Body and high-performance fiber concrete, concrete body be it is board-like, concrete body is provided with preformed hole, and preformed hole is counterbore, in advance
It boxes out and is set to the reversed one end of pre-buried perforated steel plate, preformed hole bottom end is provided with that be overlapped size with mounting hole vertical position identical
Through-hole is provided with through-hole assembly shear key, high-performance fiber Concrete Filled preformed hole in preformed hole.
Consider the convenience of site operation, therefore selects the very-high performance fiber concrete of the non-evaporating feeding microdilatancy of self-compaction.
Stirrup includes the disconnection stirrup connecting with shear connector and the common stirrup not connecting with shear connector, positive throwing
It is provided with the setting of perforated steel plate position on shadow face and disconnects stirrup, common stirrup is set without perforated steel plate position on frontal plane of projection.
The present invention provides a kind of novel shear key to combine beam construction method, comprising the following steps:
S1. pin rod iron is made；
S2. it makes girder steel and perforated steel plate, perforated steel plate is welded in girder steel top surface；
S3. the pre-buried perforated steel plate of concrete slab is made；
S4. on-site consolidation is carried out, steel construction perforated steel plate is reserved into hole location with concrete slab and carries out docking assembly；By pin
Rod iron is by concrete slab preformed hole and is arranged in the reversed one end insertion girder steel perforated steel plate of pre-buried perforated steel plate；
S5. the very-high performance fiber concrete of the non-evaporating feeding microdilatancy of self-compaction is poured at reserved hole location.
A kind of novel shear key of the present invention combines beam construction method, it is preferred that, step S3 is specifically included:
S31. prefabricated reinforced concrete structure template support is carried out, perforated steel plate is laid with, is laid with laterally common stirrup and pre-
It boxes out and disconnects stirrup at position, laterally common stirrup and disconnection stirrup are welded with pre-buried perforated steel plate；
S32. it is laid with longitudinal regular reinforcement；
S33., preformed hole at concrete slab connector position is set；
S34. casting concrete, demoulding after the completion of concrete curing.
The present invention has the beneficial effect that:
(1) by perforated steel plate pre-buried in reinforced concrete structure, the influence of concrete shrinkage is substantially reduced, is realized
The accurate positioning of assembled steel-concrete structure shear connector hole location；
(2) pre-buried perforated steel plate is welded with common stirrup and the section place of opening stirrup in reinforced concrete structure, is avoided
Stirrup is disconnected and being influenced at reserved hole location, improves the globality of structure；
(3) longitudinal reinforcement in reinforced concrete structure at the alternative position of pre-buried perforated steel plate, avoids the position
Place's longitudinal reinforcement is disconnected due to reserved hole location, improves the globality of structure；
(4) after steel construction and concrete structure are installed according to reserved hole location, by installing pin rod iron in perforated steel plate
The two is formed into entirety, not only considered the convenience of construction but also can guarantee effective connection of connector, the rigidity of pin rod iron compared with
Greatly, the shearing between steel construction and concrete structure can be effectively transmitted, while being effective against between concrete structure and steel construction
Start；
(5) perforated steel plate can be according to the vertical and horizontal flexible arrangement of beam, spacing between steel plate, the length of perforated steel plate
Degree, wherein the size of aperture and pin rod iron can be with higher to be applicable according to practical set formula requirement of engineering flexible arrangement
Property；
(6) steel construction and concrete structure after the installation is completed, pour the non-evaporating feeding microdilatancy of self-compaction in reserved hole location
Very-high performance fiber concrete, it is contemplated that the operability of site operation.Very-high performance fiber concrete and normal concrete are same
For cement-based material, reliable bond can be carried out, and very-high performance fiber concrete has fine and close material structure and good resistance to
Long property more effectively protects the knot at Shear connection position while the power effectively between transmitting steel construction and concrete structure
Structure.
Detailed description of the invention
Fig. 1 is combination beam concrete slab vertical section schematic diagram；
Fig. 2 is combination beam shear key schematic diagram；
Fig. 3 is combination beam shear key pin rod iron schematic diagram；
Fig. 4 is combination beam concrete slab perspective diagram；
Fig. 5 is combination beam construction method flow chart.
Appended drawing reference:
1, concrete slab；11, concrete slab ontology；12, high-performance fiber concrete；2, stirrup；21, common stirrup；22,
Disconnect stirrup；3, shear key；31, pin rod iron；311, the first rotary table；312, the second rotary table；31, cylinder interconnecting piece；32, with holes
Steel plate；33, pre-buried perforated steel plate；4, girder steel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out understanding that is complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Embodiment 1
As shown in Figure 1, a kind of novel shear key combination beam, including concrete slab 1, stirrup 2, shear key 3 and girder steel 4, steel
Beam 4 is set to 1 lower surface of concrete slab, and 1 inside of concrete slab is provided with shear key 3 at bottom surface, and stirrup 2 is vertically arranged
Inside concrete slab 1, shear key 3 and 2 contact position of stirrup are welded.
As shown in Fig. 2, shear key 3 includes pin rod iron 31, perforated steel plate 32, pre-buried perforated steel plate 33, perforated steel plate 32
It is provided with mounting hole, perforated steel plate 32 is vertically arranged at 4 upper surface of girder steel, and pin rod iron 31 is set in mounting hole, pre- buried strap
Steel plate 33 plate face in hole is provided with through-hole, and perforated steel plate 32 is set in through-hole, and pre-buried perforated steel plate 33 is embedded in 1 bottom of concrete slab
Face position.Pin rod iron 31 and mounting hole are interference fit.The amplification of 1~2mm is considered as when aperture, to consider various error shadows
It rings.The steel plate both ends should be neat with template top, prevent in concreting process in bury steel plate position change cannot with it is pre-
The connector first designed carries out Matching installation.
As shown in figure 3, pin rod iron 31 includes the first rotary table 311, the second rotary table 312, cylinder interconnecting piece 313, the first circle
311. second rotary table 312 of platform and cylinder interconnecting piece 313 are coaxial, and the first rotary table 311 and 312 bottom surface of the second rotary table are set to cylinder
313 liang of bottom surfaces of interconnecting piece, the first rotary table 311 and the second rotary table 312 bottom surface area≤313 base area of cylinder interconnecting piece.Pin
Bolt rod iron mounting plate 2 is made of steel plate, and Circularhole diameter matches with pin rod iron cylinder interconnecting piece base circle diameter (BCD), root weldering
It is connected at the top of steel construction.
As shown in figure 4, stirrup 2 includes disconnecting stirrup 22 and common stirrup 21, disconnects stirrup 22 and be uniformly arranged on pre- buried strap
Perpendicular where 33 through-hole of hole steel plate disconnects 22 both ends of stirrup and is set to pre-buried 33 through-hole two sides bottom surface of perforated steel plate, general
Logical stirrup 21 is uniformly arranged on the perpendicular of pre-buried 33 through-hole two sides of perforated steel plate.Pre-buried perforated steel plate 33 is welded with stirrup 2.
Perforated steel plate 32 is longitudinally-or laterally-disposed along girder steel 4.Concrete slab 1 includes concrete slab ontology 11 and high-performance fiber concrete
12, concrete body 11 be it is board-like, concrete body 11 is provided with preformed hole, and preformed hole is counterbore, and preformed hole is set to pre-buried
The reversed one end of perforated steel plate 33, preformed hole bottom end, which is provided with, is overlapped the identical through-hole of size, preformed hole with mounting hole vertical position
It is inside provided with through-hole assembly shear key 3, high-performance fiber concrete 12 fills preformed hole.Preformed hole size is relative to reserved
The setting of hole site lack of balance, a preformed hole are middle line, a length of pin rod iron overall length in side, and counterbore a length of half in side is heavy
Hole, counterbore depth are slightly larger than 32 width of perforated steel plate slightly larger than 32 height of perforated steel plate, width.Between 31 length perforated steel plates 2
Away from its own length of, arrangement form can be designed according to actual requirement of engineering and be determined.
As shown in figure 5, novel shear key combines beam construction method, comprising the following steps:
S1. pin rod iron 31 is made；
S2. it makes girder steel 4 and perforated steel plate 32, perforated steel plate 32 is welded in 4 top surface of girder steel；
S3. the pre-buried perforated steel plate 33 of concrete slab 1 is made；
S4. on-site consolidation is carried out, steel construction perforated steel plate 32 is reserved into hole location with concrete slab 1 and carries out docking assembly；It will
Pin rod iron 31 is inserted into 4 perforated steel plate 32 of girder steel by 1 preformed hole of concrete slab and setting reversed one end of pre-buried perforated steel plate 33
It is interior；
S5. the very-high performance fiber concrete 12 of the non-evaporating feeding microdilatancy of self-compaction is poured at reserved hole location.
Step S3 is specifically included:
S31. prefabricated reinforced concrete structure template support is carried out, perforated steel plate 32 is laid with, is laid with laterally common stirrup 21
With disconnection stirrup 22 at reserved hole location, laterally common stirrup 21 and disconnection stirrup 22 are welded with pre-buried perforated steel plate 33
It connects；
S32. it is laid with longitudinal regular reinforcement；
S33., preformed hole at concrete slab connector position is set；
S34. casting concrete, demoulding after the completion of concrete curing.
The preformed hole to match with perforated steel plate 2 on steel construction, while reserved energy are reserved in concrete structure prefabrication process
Enough preformed holes that pin rod iron 1 is fit into reserved steel plate.Two kinds of preformed holes consider suitably to amplify, to consider that concrete is received
Contracting and various errors influence.
Preformed hole is arranged in pre-buried perforated steel plate 33 at design position, installs pre-buried perforated steel plate 33, both ends and template
Top is neat, guarantees that position does not change in concreting process, realizes that shear connector hole location is accurately docked.It is pre-buried with holes
Steel plate 33 after the installation is completed, is laid with common stirrup and disconnects stirrup, and by itself and pre-buried perforated steel plate 33 in concrete structure
It is welded.
After the completion of concrete structure and prefabricated steel construction, after the completion of the docking of reserved hole location, pin rod iron 1 is inserted into
In perforated steel plate 2, that completes shear connector is reliably fixed connection.
After the completion of concrete structure and steel structure assembling, the non-evaporating feeding microdilatancy superelevation of self-compaction is poured in reserved hole location
Energy fiber concrete, considers property easy for construction and connection reliability.
Shear connector and construction method proposed by the present invention for assembled steel-concrete combined structure, by
It pre-buried perforated steel plate 33 and is welded with stirrup in concrete structure, welds perforated steel plate 2 in girder steel top surface；It is prefabricated in the factory
After the completion, it after being installed by reserved hole location, is fixed by pin rod iron 1；After the installation is completed, it is poured in preformed hole
The very-high performance fiber concrete of the non-evaporating feeding microdilatancy of self-compaction.This kind of connection type substantially increases assembled steel-concrete
The globality of composite structure, effectively enhance assembled steel-mix composite structure shearing strength and rigidity, ensured steel construction with
The collaborative work of concrete structure.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of novel shear key combination beam, it is characterised in that: including concrete slab (1), stirrup (2), shear key (3) and girder steel
(4), the girder steel (4) is set to the concrete slab (1) lower surface, and the concrete slab (1) is internal to be set at bottom surface
It is equipped with shear key (3), the stirrup (2) is vertically installed in the concrete slab (1) inside, the shear key (3) and the hoop
The welding of muscle (2) contact position.
2. a kind of novel shear key combination beam according to claim 1, it is characterised in that: the shear key (3) includes pin
Bolt rod iron (31), perforated steel plate (32), pre-buried perforated steel plate (33), the perforated steel plate (32) are provided with mounting hole, the band
Hole steel plate (32) is vertically arranged at the girder steel (4) upper surface, and the pin rod iron (31) is set in the mounting hole, described
Pre-buried perforated steel plate (33) plate face is provided with through-hole, and the perforated steel plate (32) is set in the through-hole, described pre-buried with holes
Steel plate (33) is embedded in the concrete slab (1) basal surface position.
3. a kind of novel shear key combination beam according to claim 2, it is characterised in that: the stirrup (2) includes disconnecting
Stirrup (22) and common stirrup (21), the disconnection stirrup (22) are uniformly arranged on where pre-buried perforated steel plate (33) through-hole
Perpendicular, disconnection stirrup (22) both ends are set to pre-buried perforated steel plate (33) the through-hole two sides bottom surface, described general
Logical stirrup (21) are uniformly arranged on the perpendicular of pre-buried perforated steel plate (33) the through-hole two sides.
4. a kind of novel shear key combination beam described in any one of its according to claim 1~3, it is characterised in that: described
Pre-buried perforated steel plate (33) and the stirrup (2) are welded.
5. a kind of novel shear key combination beam according to claim 4, it is characterised in that: the perforated steel plate (32) is along institute
It is longitudinally-or laterally-disposed to state girder steel (4).
6. according to claim 4~5 its any one of described in a kind of novel shear key combination beam, it is characterised in that: it is described
Pin rod iron (31) includes the first rotary table (311), the second rotary table (312), cylinder interconnecting piece (313), first rotary table (311)
Second rotary table (312) and the cylinder interconnecting piece (313) coaxially, first rotary table (311) and second rotary table
(312) bottom surface is set to (313) two bottom surface of cylinder interconnecting piece, first rotary table (311) and second rotary table
(312) bottom surface area≤cylinder interconnecting piece (313) base area.
7. a kind of novel shear key combination beam according to claim 5, it is characterised in that: the pin rod iron (31) and institute
Mounting hole is stated as interference fit.
8. a kind of novel shear key combination beam according to claim 5, it is characterised in that: the concrete slab (1) includes
Concrete slab ontology (11) and high-performance fiber concrete (12), the concrete body (11) are board-like, the concrete sheet
Body (11) is provided with preformed hole, and the preformed hole is counterbore, and it is reversed that the preformed hole is set to the pre-buried perforated steel plate (33)
One end, the preformed hole bottom end are provided with and are overlapped the identical through-hole of size with the mounting hole vertical position, in the preformed hole
It is provided with the through-hole and assembles the shear key (3), the high-performance fiber concrete (12) fills the preformed hole.
9. a kind of novel shear key combines beam construction method, it is characterised in that: the following steps are included:
S1. pin rod iron (31) are made；
S2. girder steel (4) are made and perforated steel plate (32), perforated steel plate (32) is welded in girder steel (4) top surface；
S3. concrete slab (1) is made, pre-buried perforated steel plate (33)；
S4. on-site consolidation is carried out, steel construction perforated steel plate (32) is reserved into hole location with concrete slab (1) and carries out docking assembly；It will
Pin rod iron (31) is by concrete slab (1) preformed hole and the reversed one end insertion girder steel of the pre-buried perforated steel plate (33) is arranged
(4) in perforated steel plate (32)；
S5. the very-high performance fiber concrete (12) of the non-evaporating feeding microdilatancy of self-compaction is poured at reserved hole location.
10. a kind of novel shear key according to claim 9 combines beam construction method, it is characterised in that: step S3 is specific
Include:
S31. prefabricated reinforced concrete structure template support is carried out, is laid with perforated steel plate (32), laterally common stirrup (21) is laid with
Disconnect stirrup (22) at preformed hole, by the common stirrup of the transverse direction (21) and the disconnection stirrup (22) with pre-buried steel with holes
Plate (33) is welded；
S32. it is laid with longitudinal regular reinforcement；
S33., preformed hole at concrete slab connector position is set；
S34. casting concrete, demoulding after the completion of concrete curing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474941.1A CN110158464A (en) | 2019-06-03 | 2019-06-03 | A kind of novel shear key combination beam and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910474941.1A CN110158464A (en) | 2019-06-03 | 2019-06-03 | A kind of novel shear key combination beam and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110158464A true CN110158464A (en) | 2019-08-23 |
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| CN201910474941.1A Pending CN110158464A (en) | 2019-06-03 | 2019-06-03 | A kind of novel shear key combination beam and its construction method |
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| US20080083181A1 (en) * | 2003-07-18 | 2008-04-10 | Pedro Ospina | Integral composite-structure construction system |
| CN103741877A (en) * | 2013-12-30 | 2014-04-23 | 北京工业大学 | Lattice anti-shearing device-steel-profiled steel plate-renewable concrete combination beam and production method |
| CN205421722U (en) * | 2016-02-19 | 2016-08-03 | 中南大学 | Steel - concrete structure's compound shear force connecting piece |
| CN106677049A (en) * | 2017-01-20 | 2017-05-17 | 福州大学 | Assembled steel-concrete combination structure bridge and construction method |
| CN211368387U (en) * | 2019-06-03 | 2020-08-28 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Novel shear force component combination beam |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080083181A1 (en) * | 2003-07-18 | 2008-04-10 | Pedro Ospina | Integral composite-structure construction system |
| CN103741877A (en) * | 2013-12-30 | 2014-04-23 | 北京工业大学 | Lattice anti-shearing device-steel-profiled steel plate-renewable concrete combination beam and production method |
| CN205421722U (en) * | 2016-02-19 | 2016-08-03 | 中南大学 | Steel - concrete structure's compound shear force connecting piece |
| CN106677049A (en) * | 2017-01-20 | 2017-05-17 | 福州大学 | Assembled steel-concrete combination structure bridge and construction method |
| CN211368387U (en) * | 2019-06-03 | 2020-08-28 | 中国铁道科学研究院集团有限公司铁道建筑研究所 | Novel shear force component combination beam |
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