CN107447872A - Double steel plate concrete combined structure combines shear connector - Google Patents
Double steel plate concrete combined structure combines shear connector Download PDFInfo
- Publication number
- CN107447872A CN107447872A CN201710798617.6A CN201710798617A CN107447872A CN 107447872 A CN107447872 A CN 107447872A CN 201710798617 A CN201710798617 A CN 201710798617A CN 107447872 A CN107447872 A CN 107447872A
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- Prior art keywords
- steel plate
- shear connector
- connector
- shear
- claw clip
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/38—Connections for building structures in general
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
Double steel plate concrete combined structure combines shear connector, the invention belongs to structural engineering field, the friction welding method that it will solve to connect both sides steel plate by shear reinforcement in existing double steel plate concrete combined structure need to be by large-scale welding instrument, the problem of connection procedure complexity.Two blocks of steel plates in double steel plate concrete combined structure combination shear connector are oppositely arranged, multiple shear connectors are welded with the plate face of every block of steel plate, anti-pulling connector is provided between the shear connector that two are oppositely arranged, anti-pulling connector is made up of middle brace rod and 2 claw clip portions, the end cap portion of shear connector is inserted in the recessed cavities in embedded claw clip portion, pawl in claw clip portion refers to is provided with nut on the outer wall of free end by thread bush, and concrete has been poured between two steel plates.The connected mode of shear reinforcement is changed into simple mechanical connection by the present invention by friction welding, relative to the mode of friction welding, is limited small and flexible for installation.
Description
Technical field
The invention belongs to structural engineering field, and in particular to a kind of double steel plate-concrete combined structure.
Background technology
Double steel plate-concrete combined structure, typically by both sides steel plate, core concrete, peg and shear reinforcement composition.
Such structure type weld stud first on the inside of steel plate, both sides steel plate is then connected by shear reinforcement, finally in both sides steel
Casting concrete between plate.Double steel plate-concrete combined structure can save the mistake of formwork and form removal because of its distinctive seal
Journey, so as to largely save construction period and reduce the advantage of construction cost, therefore in Tunnel Engineering, ocean engineering, storage
More and more applied in the field such as oil tank engineering and nuclear power engineering.
In double steel plate-concrete combined structure, the steel plates of both sides is realized by shear reinforcement and connected, and shear reinforcement with
The connection of steel plate often uses friction welding mode.Friction-welding technique is complicated and needs to coordinate large-scale friction welding to set
It is standby, when run into combining structure section it is irregular in the case of, friction welding is often relatively difficult to achieve.
The content of the invention
The invention aims to solve to connect both sides steel by shear reinforcement in existing double steel plate-concrete combined structure
The friction welding method of plate need to be by large-scale welding instrument, the problem of connection procedure complexity, and provides a kind of double steel plate-concrete
Combining structure combines shear connector.
Double steel plate of the present invention-concrete combined structure combination shear connector includes two steel plates, multiple shear connectors
With multiple anti-pulling connectors, shear connector forms integrative-structure by connecting rod and end cap portion, and end cap portion is located at the one of connecting rod
On side pole end, the other end of connecting rod is welded on steel plate, and one week mentioned ridge-shaped projection is formed radially along end cap portion；
Two blocks of steel plates are oppositely arranged, and multiple shear connectors are welded with the plate face of every block of steel plate, are welded on two blocks of steel plates
The shear connector connect is oppositely arranged, and anti-pulling connector is provided between the shear connector that two are oppositely arranged, and resistance to plucking connects
Fitting is made up of middle brace rod and 2 claw clip portions, and 2 claw clip portions are located at the both ends of middle brace rod respectively, and claw clip portion is edge
Multiple pawls being provided with the circumferential pole face of middle brace rod to refer to, one end that each pawl refers to is connected between on the pole face of connecting rod,
The other end that pawl refers to is free end, and the free end that each pawl refers to is provided with pawl and refers to projection, and it is in mentioned ridge-shaped that pawl, which refers to projection, and pawl refers to projection
Axis towards middle brace rod is raised, and the free end that circumferentially disposed multiple pawls refer to crosses recess in the rod end of middle brace rod
Chamber, the end cap portion of shear connector is inserted in the recessed cavities in embedded claw clip portion, and the end face and centre in the end cap portion of shear connector connect
The rod end surface fitting of extension bar, the mentioned ridge-shaped projection in end cap portion refers to projection by the pawl in claw clip portion and is caught in recessed cavities, in claw clip portion
Pawl refers to is provided with nut on the outer wall of free end by thread bush, and concrete has been poured between two steel plates.
To the structure for holding cap portion of shear connector in double steel plate of the present invention-concrete combined structure combination shear connector
It is designed, the end cap of shear connector is adapted to the size and depth of recessed cavities in anti-pulling connector.Anti-pulling connector be by
The connected mode of shear reinforcement is changed into simple mechanical connection, the recessed cavities and shear connections of anti-pulling connector by friction welding
Part phase mutual induction, by applying axial compressive force, the end cap of shear connector is inserted in the opening in anti-pulling connector claw clip portion, then
By the expansive force of nut constraint opening, the connection between the steel plate of both sides is realized.
Double steel plate of the present invention-concrete combined structure combines shear connector not by place, section form and building ring
The influence in border, in Tunnel Engineering, ocean engineering, science of bridge building, it can all apply in oil storage tank engineering and nuclear power engineering.Relative to rubbing
The mode of welding is wiped, is limited small and flexible for installation.
Brief description of the drawings
Fig. 1 is the structural representation that double steel plate of the present invention-concrete combined structure combines shear connector；
Fig. 2 is the structural representation of shear connector；
Fig. 3 is the structural representation in claw clip portion；
Fig. 4 is the structural representation of anti-pulling connector end face；
The scale diagrams of anti-pulling connector when Fig. 5 is FEM Simulation in embodiment；
The structural representation of 1/12 model when Fig. 6 is FEM Simulation.
Embodiment
Embodiment one：Present embodiment double steel plate-concrete combined structure combination shear connector includes two
Steel plate 1, multiple shear connectors 2 and multiple anti-pulling connectors 3, shear connector 2 are made up of connecting rod 2-1 and end cap portion 2-2
Integrative-structure, end cap portion 2-2 are located on connecting rod 2-1 one end rod end, and the connecting rod 2-1 other end is welded on steel plate 1, edge
End cap portion 2-2's is formed radially one week mentioned ridge-shaped projection 2-3；
Two blocks of steel plates 1 are oppositely arranged, and multiple shear connectors 2, two blocks of steel plates 1 are welded with the plate face of every block of steel plate 1
The shear connector 2 of upper welding is oppositely arranged, and anti-pulling connector 3 is provided between two shear connectors being oppositely arranged 2,
Anti-pulling connector 3 is made up of middle brace rod 3-1 and 2 claw clip portion 3-2, and 2 claw clip portion 3-2 are located at middle brace rod 3- respectively
1 both ends, claw clip portion 3-2 are to be provided with multiple pawls along middle brace rod 3-1 circumferential pole face to refer to 3-3, and each pawl refers to 3-3's
One end is connected between on connecting rod 3-1 pole face, and the other end that pawl refers to 3-3 is free end, and the free end that each pawl refers to 3-3 is set
It is equipped with pawl and refers to raised 3-4, it is in mentioned ridge-shaped that pawl, which refers to raised 3-4, and the axis that pawl refers to raised 3-4 towards middle brace rod 3-1 is raised, week
The free end for referring to 3-3 to multiple pawls of setting crosses recessed cavities, the end cap of shear connector 2 in middle brace rod 3-1 rod end
Portion 2-2 is inserted in embedded claw clip portion 3-2 recessed cavities, and the end cap portion 2-2 of shear connector 2 end face is with middle brace rod 3-1's
Rod end surface is bonded, and end cap portion 2-2 mentioned ridge-shaped projection 2-3 refers to raised 3-4 by claw clip portion 3-2 pawl and is caught in recessed cavities, in pawl
Folder portion 3-2 pawl refers to is provided with nut 4 on the outer wall of 3-3 free ends by thread bush, and coagulation has been poured between two steel plates 1
Soil.
Present embodiment is formed radially one week mentioned ridge-shaped projection along end cap portion, and the cross sectional shape in end cap portion is hexagon.
Present embodiment proposes a kind of combination shear connector of convenient installation, and the combination shear connector includes resistance to plucking
Connector, shear connector and fastener three parts composition.Three parts are axially symmetric structure, and wherein shear connector is direct
It is connected with steel plate；Two claw clip portions connection shear connector of anti-pulling connector, realizes the connection between the steel plate of both sides；Fastener can
Think nut, constrain the cleft hand of anti-pulling connector.
Embodiment two：Anti-pulling connector 3 unlike present embodiment and embodiment one is connected by centre
Extension bar 3-1 and 2 claw clip portion 3-2 form integrative-structure.
Embodiment three：Present embodiment claw clip portion 3-2 unlike embodiment one or two is in
Between connecting rod 3-1 circumferential pole face on be provided with 6~12 pawls and refer to 3-3.
The multiple pawls of present embodiment refer to be uniformly distributed in a circumferential direction.
Embodiment four：Claw clip portion 3-2 unlike present embodiment and embodiment three is connected along centre
10~12 pawls are provided with extension bar 3-1 circumferential pole face and refer to 3-3.
Embodiment five：Shear connector 2 unlike one of present embodiment and embodiment one to four
End cap portion 2-2 insert in embedded claw clip portion 3-2 recessed cavities, end cap portion 2-2 mentioned ridge-shaped projection 2-3 refers to raised 3-4 phases with pawl
Two surfaces of contact are mat surface.
Embodiment：The present embodiment double steel plate-concrete combined structure combination shear connector includes two steel plates 1, multiple
Shear connector 2 and multiple anti-pulling connectors 3, shear connector 2 form integrative-structure by connecting rod 2-1 and end cap portion 2-2, held
Cap portion 2-2 is located on connecting rod 2-1 one end rod end, and the connecting rod 2-1 other end is welded on steel plate 1, along end cap portion 2-2's
It is formed radially one week mentioned ridge-shaped projection 2-3；
Two blocks of steel plates 1 are oppositely arranged, and multiple shear connectors 2, two blocks of steel plates 1 are welded with the plate face of every block of steel plate 1
The shear connector 2 of upper welding is oppositely arranged, and anti-pulling connector 3 is provided between two shear connectors being oppositely arranged 2,
Anti-pulling connector 3 is made up of middle brace rod 3-1 and 2 claw clip portion 3-2, and 2 claw clip portion 3-2 are located at middle brace rod 3- respectively
1 both ends, claw clip portion 3-2 are to be provided with multiple pawls along middle brace rod 3-1 circumferential pole face to refer to 3-3, and each pawl refers to 3-3's
One end is connected between on connecting rod 3-1 pole face, and the other end that pawl refers to 3-3 is free end, and the free end that each pawl refers to 3-3 is set
It is equipped with pawl and refers to raised 3-4, it is in mentioned ridge-shaped that pawl, which refers to raised 3-4, and the axis that pawl refers to raised 3-4 towards middle brace rod 3-1 is raised, week
The free end for referring to 3-3 to multiple pawls of setting crosses recessed cavities, the end cap of shear connector 2 in middle brace rod 3-1 rod end
Portion 2-2 is inserted in embedded claw clip portion 3-2 recessed cavities, and the end cap portion 2-2 of shear connector 2 end face is with middle brace rod 3-1's
Rod end surface is bonded, and end cap portion 2-2 mentioned ridge-shaped projection 2-3 refers to raised 3-4 by claw clip portion 3-2 pawl and is caught in recessed cavities, holds cap
It is mat surface that mentioned ridge-shaped projection and the pawl in portion, which refer to raised two surfaces being in contact, and in claw clip portion, 3-2 pawl refers to 3-3 free ends
Outer wall on nut 4 is provided with by thread bush, poured concrete between two steel plates 1.
The finite element modelling of stress performance is carried out to the present embodiment double steel plate-concrete combined structure combination shear connector
Analysis, using common finite element program-ABAQUS.Because combination shear connector is anchored inside concrete, stress is with axial drawing
Based on power, the present embodiment carries out finite element modelling mainly for the axial tensile property of combination shear connector.
The key dimension that shear connector is combined during the present embodiment FEM Simulation is as shown in Figure 5, it is contemplated that nut
Fastener is mainly used in constraining the expansion of anti-pulling connector handgrip, and stress is smaller, and therefore, contacting piece is without finite element modelling point
Analysis.In this model, the constitutive model of Steel material is ideal elastoplastic model, modulus of elasticity 20100MPa, and Poisson's ratio is
0.3, yield strength 345MPa.All parts use C3D8R solid elements.Contact between each part is to contact and cut firmly
To friction.Mentioned ridge-shaped projection and the pawl in end cap portion refer to the coefficient of friction that raised two surfaces being in contact are mat surface and are higher than
2.5。
In view of calculating cost and the combination axisymmetric characteristic of shear connector, the combination shearing resistance that the present embodiment is established connects
The FEM model of fitting only rounds the 1/12 of body Model, as shown in Figure 6.
It is specific finite element modelling below：
1st, push-on force finite element modelling：
Combine in shear connector, anti-pulling connector docks push-in with shear connector, is controlled for push-on force smaller
Value, facilitates worker to construct.By FEM Simulation, although there is plastic strain, scope very little, to combining shear connections
The stress of part does not have too big influence.From the point of view of push-on force result of calculation, the maximum push-on force of 1/12 model is 98.2N, entirely
The push-on force for combining shear connector is 1178.4N, less than 1.2kN.
2nd, withdrawal force finite element modelling：
For combining shear connector, axial tension is its main stress form.By FEM Simulation,
Axial force is delivered to claw clip portion by anti-pulling connector, then is delivered to shear connector by claw clip portion.Anti-pulling connector connects with shearing resistance
Fitting enters plasticity, illustrates that claw clip portion can realize the transmission of axial force.From the point of view of Axial Force Calculating result, 1/12 model
Maximum axial force be 10076N, the whole axial force for combining shear connector is 120912N, i.e. 121kN.It is and straight for 20mm
Footpath, yield strength are that the yield load of axial tension is 108.385kN for 345MPa common shear reinforcement.Therefore this hair
The combination shear connector of bright design can realize the requirement of common shear reinforcement axial tension, can apply to practical structures.
3rd, simulation result analysis：
From the point of view of finite element modelling result, the combination shear connector of the 20mm diameters designed by the present embodiment, its size
Rationally, stress is clear, and push-on force is smaller, facilitates worker to install, and this just can further save cost.Withdrawal force is higher, substantially may be used
To realize the requirement of common shear reinforcement axial tension so that the stress performance for combining shear connector is not weaker than common shearing resistance steel
Muscle.Combination shear connector for different-diameter, the method for finite element modelling can be equally used to carry out dimensionally-optimised, formation
A series of combination shear connector, for the application in Practical Project.
Claims (5)
1. double steel plate-concrete combined structure combination shear connector, it is characterised in that the double steel plate-concrete combined structure group
Closing shear connector includes two steel plates (1), multiple shear connectors (2) and multiple anti-pulling connectors (3), shear connector
(2) integrative-structure is formed by connecting rod (2-1) and end cap portion (2-2), end cap portion (2-2) is located at a side pole of connecting rod (2-1)
On end, the other end of connecting rod (2-1) is welded on steel plate (1), and one week mentioned ridge-shaped projection is formed radially along end cap portion (2-2)
(2-3)；
Two pieces of steel plates (1) are oppositely arranged, and multiple shear connectors (2), two blocks of steel plates are welded with the plate face of every block of steel plate (1)
(1) shear connector (2) welded on is oppositely arranged, and resistance to plucking is provided between two shear connectors being oppositely arranged (2)
Connector (3), anti-pulling connector (3) are made up of middle brace rod (3-1) and 2 claw clip portions (3-2), 2 claw clip portions (3-2) point
Not Wei Yu middle brace rod (3-1) both ends, claw clip portion (3-2) is provided with along the circumferential pole face of middle brace rod (3-1)
Multiple pawls refer to (3-3), and one end that each pawl refers to (3-3) is connected between on connecting rod (3-1) pole face, and pawl refers to the another of (3-3)
One end is free end, and the free end that each pawl refers to (3-3) is provided with pawl and referred to raised (3-4), and it is in mentioned ridge-shaped that pawl, which refers to raised (3-4),
The axis that pawl refers to raised (3-4) towards middle brace rod (3-1) is raised, and the free end that circumferentially disposed multiple pawls refer to (3-3) exists
The rod end of middle brace rod (3-1) crosses recessed cavities, and the end cap portion (2-2) of shear connector (2) inserts embedded claw clip portion (3-2)
In recessed cavities, the end face in the end cap portion (2-2) of shear connector (2) is bonded with the rod end surface of middle brace rod (3-1), end cap portion
The mentioned ridge-shaped of (2-2) raised (2-3) refers to raised (3-4) by the pawl of claw clip portion (3-2) and is caught in recessed cavities, at claw clip portion (3-2)
Pawl refer to nut (4) be provided with by thread bush on the outer wall of (3-3) free end, poured concrete between two steel plates (1).
2. double steel plate according to claim 1-concrete combined structure combination shear connector, it is characterised in that resistance to plucking connects
Fitting (3) forms integrative-structure by middle brace rod (3-1) and 2 claw clip portions (3-2).
3. double steel plate according to claim 1-concrete combined structure combination shear connector, it is characterised in that claw clip portion
(3-2) is to be provided with 6~12 pawls along the circumferential pole face of middle brace rod (3-1) to refer to (3-3).
4. double steel plate according to claim 3-concrete combined structure combination shear connector, it is characterised in that claw clip portion
(3-2) is to be provided with 10~12 pawls along the circumferential pole face of middle brace rod (3-1) to refer to (3-3).
5. double steel plate according to claim 1-concrete combined structure combination shear connector, it is characterised in that shearing resistance connects
The end cap portion (2-2) of fitting (2) is inserted in the recessed cavities of embedded claw clip portion (3-2), holds the mentioned ridge-shaped of cap portion (2-2) raised (2-3)
It is mat surface to refer to two surfaces that raised (3-4) be in contact with pawl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798617.6A CN107447872B (en) | 2017-09-07 | 2017-09-07 | Double steel plate-concrete combined structure combines shear connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798617.6A CN107447872B (en) | 2017-09-07 | 2017-09-07 | Double steel plate-concrete combined structure combines shear connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107447872A true CN107447872A (en) | 2017-12-08 |
| CN107447872B CN107447872B (en) | 2019-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710798617.6A Active CN107447872B (en) | 2017-09-07 | 2017-09-07 | Double steel plate-concrete combined structure combines shear connector |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485572A (en) * | 2019-09-10 | 2019-11-22 | 江苏晨马建筑科技有限公司 | A kind of assembled architecture member connecting structure |
| CN113374770A (en) * | 2021-05-28 | 2021-09-10 | 西安建筑科技大学 | Movable self-resetting anti-pulling shear connector and design method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250454Y (en) * | 2008-08-29 | 2009-06-03 | 万水 | Flange-shaped shear connector |
| CN202055373U (en) * | 2011-04-22 | 2011-11-30 | 上海江欢成建筑设计有限公司 | Combined structure of double-steel-plate sandwich concrete wall and square steel tube concrete |
| CN103015310A (en) * | 2012-11-29 | 2013-04-03 | 清华大学 | Sectional type concrete filled steel tube pier adopting non tension and shear limiting and construction method thereof |
| JP6267012B2 (en) * | 2014-03-06 | 2018-01-24 | 住友林業株式会社 | Joint structure of wooden beams |
-
2017
- 2017-09-07 CN CN201710798617.6A patent/CN107447872B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201250454Y (en) * | 2008-08-29 | 2009-06-03 | 万水 | Flange-shaped shear connector |
| CN202055373U (en) * | 2011-04-22 | 2011-11-30 | 上海江欢成建筑设计有限公司 | Combined structure of double-steel-plate sandwich concrete wall and square steel tube concrete |
| CN103015310A (en) * | 2012-11-29 | 2013-04-03 | 清华大学 | Sectional type concrete filled steel tube pier adopting non tension and shear limiting and construction method thereof |
| JP6267012B2 (en) * | 2014-03-06 | 2018-01-24 | 住友林業株式会社 | Joint structure of wooden beams |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110485572A (en) * | 2019-09-10 | 2019-11-22 | 江苏晨马建筑科技有限公司 | A kind of assembled architecture member connecting structure |
| CN113374770A (en) * | 2021-05-28 | 2021-09-10 | 西安建筑科技大学 | Movable self-resetting anti-pulling shear connector and design method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107447872B (en) | 2019-04-09 |
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