CN107700728A - Easy connect band shear key reinforced concrete slab structure and connection method - Google Patents
Easy connect band shear key reinforced concrete slab structure and connection method Download PDFInfo
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- CN107700728A CN107700728A CN201710922922.1A CN201710922922A CN107700728A CN 107700728 A CN107700728 A CN 107700728A CN 201710922922 A CN201710922922 A CN 201710922922A CN 107700728 A CN107700728 A CN 107700728A
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
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Abstract
The present invention relates to prefabricated assembled concrete structural construction field, specially a kind of easily connect band shear key reinforced concrete slab structure and connection method.The structure includes：Shear key, precast concrete bottom plate, concrete cast-in-situ layer, the adjacent side docking of precast concrete bottom plate, each precast concrete bottom plate upper top set shear key and concrete cast-in-situ layer.Easily connect band shear key reinforced concrete slab structure and connection method of the invention, the inclined-plane that two sides of the former improved precast concrete bottom plate with shear key concrete folding plate floor have certain angle of inclination is changed to T-steel, pass through T-steel structure power transmission, therefore make simpler, Path of Force Transfer is simpler clear and definite, and power transmission is more reliable.The present invention realizes the connection of easy connect band shear key concrete folding plate floor and beam, easily connect with shear key reinforced concrete slab and easily connect with the connection between shear key reinforced concrete slab, meet that actual engineering design is constructed needs.
Description
Technical field
The present invention relates to prefabricated assembled concrete structural construction field, specially a kind of easily connect band shear key concrete
Laminated floor slab structure and connection method, particularly improved band shear key concrete folding plate floor construction using T-steel with it is U-shaped
Connect structure and the connection method of bar connecting.
Background technology
At present, in practical set formula concrete construction, floor it is commonly used be that self-bearing type steel bar girder concrete is folded
Plywood, this kind of superimposed sheet has the shortcomings that floor is thicker, construction costs is high, in order to solve this problem, in previous invention,
" the concrete folding plate floor with shear key, prefabricated construction and construction method (publication number CN102839773A) ", but in the hair
In bright, be not directed to the reinforced concrete slab with shear key how to be connected with beam, reinforced concrete slab and band with shear key
How to be connected between the reinforced concrete slab of shear key.
In order to solve the above problems, in previous invention, " the improved concrete folding plate floor construction with shear key
And connection method (publication number CN104727475A) ", this kind of structure and connection method, main or setting using armored concrete
Thought is counted, it is slightly complicated to make construction.Therefore, the present invention proposes easy connect band shear key reinforced concrete slab structure and connection
Method, the power transmission of pressure and shearing between each prefabricated components can be preferably realized, there is making to be more convenient, power transmission is more reliable, existing
The advantages that field is assembled simpler, and construction quality is easier to ensure that.
The content of the invention
It is an object of the invention to provide a kind of easily connect band shear key reinforced concrete slab structure and connection method, realize easy
Connect band shear key concrete folding plate floor is connected with beam, easily connect with shear key reinforced concrete slab with being easily connected
With the connection between shear key reinforced concrete slab, meet actual engineering design construction needs.
Technical scheme：
A kind of easily connect band shear key reinforced concrete slab structure, the structure include：Shear key, precast concrete bottom
Plate, concrete cast-in-situ layer, the adjacent side docking of precast concrete bottom plate, each precast concrete bottom plate upper top set shearing resistance
Key and concrete cast-in-situ layer；Wherein, the structure of precast concrete bottom plate is as follows：
Four sides of precast concrete bottom plate are T-steels, and T-steel carries edge of a wing preformed hole and web preformed hole；Pre-
The plate bottom of concrete floor processed is provided with precast concrete bottom plate longitudinal reinforcement and precast concrete bottom plate transverse steel, prefabricated mixed
Coagulate native bottom plate longitudinal reinforcement and precast concrete bottom plate transverse steel and be each passed through edge of a wing preformed hole, and be welded to edge of a wing preformed hole
On.
Described easy connect band shear key reinforced concrete slab structure, the thickness of precast concrete bottom plate and T-steel
The edge of a wing is highly consistent, and the half of plate thickness is overlapped for actual design.
The connection method of described easy connect band shear key reinforced concrete slab structure, easy connect band shear key concrete
Connection method between laminated floor slab and easy connect band shear key reinforced concrete slab is as follows：
(1) two pieces of precast concrete bottom plates are lifted into precalculated position, the adjacent side docking of precast concrete bottom plate is right
After connecing, the web of T-steel is in close contact in the same horizontal position；By U-shaped web bottom of the connection reinforcing bar from T-steel in plate bottom
Through web preformed hole, two pieces of precast concrete bottom plates are closely connected, in the U-shaped company in top surface installation plate top of precast concrete bottom plate
Connect reinforcing bar；
(2) the casting concrete in-situ layer on two pieces of precast slabs of above-mentioned connection, concrete cast-in-situ layer with it is prefabricated
Concrete floor is by the U-shaped bar connecting that connects of shear key and plate top into strong construction；
(3) microdilatancy sand is smeared in the adjacent side joint of two pieces of precast concrete bottom plates, the bottom surface of the web of T-steel
Slurry, completes the connection between easy connect band shear key reinforced concrete slab and easy connect band shear key reinforced concrete slab.
The connection method of described easy connect band shear key reinforced concrete slab structure, easy connect band shear key concrete
The connection method of laminated floor slab and central sill is as follows：
(1) two pieces of precast concrete bottom plates are lifted into central sill both sides, the side bottom of two pieces of precast concrete bottom plates with
Beam outer ledge line connects, and the web of the T-steel of two pieces of precast concrete bottom plates is in the same horizontal position, and centre has one section
Horizontal range；The U-shaped connection reinforcing bar in plate bottom is passed through into web preformed hole at the top of the web of T-steel, close two pieces of connection is prefabricated mixed
Native bottom plate is coagulated, in the U-shaped connection reinforcing bar in top surface installation plate top of precast concrete bottom plate；
(2) the casting concrete in-situ layer on two pieces of precast slabs of above-mentioned connection, concrete cast-in-situ layer with it is prefabricated
Concrete floor is by the U-shaped bar connecting that connects of shear key and plate top into strong construction.
The connection method of described easy connect band shear key reinforced concrete slab structure, easy connect band shear key concrete
The connection method of laminated floor slab and side bar is as follows：
(1) side bar is when making, casting concrete on the outside of side bar Reinforcement, the pre-buried pvc pipe in longitudinal direction in side bar,
Pvc pipe is on the inside of side bar Reinforcement；
(2) precast concrete bottom plate is lifted on side bar, side bar is connected with plate reinforcing bar both ends be inserted respectively into it is T-shaped
In the web preformed hole and pvc pipe of steel, grouting material is irrigated in pvc pipe, completes the connection that side bar is connected reinforcing bar and side bar with plate；
(3) the casting concrete in-situ layer on the precast slab of above-mentioned connection, concrete cast-in-situ layer and concrete
Native bottom plate is connected bar connecting into strong construction by shear key and side bar with plate.
The connection method of described easy connect band shear key reinforced concrete slab structure, the diameter of pvc pipe are more than side bar
4~6mm of bar diameter is connected with plate.
The connection method of described easy connect band shear key reinforced concrete slab structure, the end of precast concrete bottom plate
The distance snapped into side bar is more than 100mm.
The connection method of described easy connect band shear key reinforced concrete slab structure, with four T-steels and prefabricated mixed
It is template casting concrete preformed layer to coagulate native bottom surface template, and precast concrete bottom plate is made.
Advantages of the present invention and beneficial effect are：
1st, the present invention easily connect band shear key reinforced concrete slab structure and connection method, itself and former improved band shearing resistance
Key concrete folding plate floor construction is compared：By the former improved precast concrete bottom plate with shear key concrete folding plate floor
Two sides inclined-plane with certain angle of inclination be changed to T-steel, by T-steel structure power transmission, therefore make simpler, pass
Power path is simpler clear and definite, and power transmission is more reliable.
2nd, the present invention easily connect band shear key reinforced concrete slab structure and connection method, by precast concrete bottom
U-shaped connection reinforcing bar is placed in the preformed hole that the T-steel of plate both sides is set, realizes that reinforcement moment of flexure produces the equivalent biography of tension
Pass；Bar connecting is connected with plate by the pre-buried pvc pipe in beam and using side bar, realizes precast concrete bottom plate plate end in side bar
On fixation；By the arranging plate bottom U-shaped steel muscle in the preformed hole of connection and plate top U-shaped steel muscle at central sill is set, realizes central sill
The transmission of both sides superimposed sheet moment of flexure.On-site consolidation is simpler, and construction quality is easier to ensure that.
3rd, the present invention is equally few with situ wet operation, and assembly rate is high, energy-conserving and environment-protective, the requirement for meeting Green Architectural Development
The advantages of Deng prefabricated concrete structure.
Brief description of the drawings
Fig. 1 is the U-shaped connection reinforcing bar graphics in plate bottom.
Fig. 2 is the graphics of T-steel.
Fig. 3 is the graphics of shear key.
Fig. 4 be arrange shear key, T-shaped angle steel precast concrete bottom plate graphics.
Fig. 5 is the graphics that precast concrete bottom plate completes.
Fig. 6 is to connect two pieces of precast concrete bottom plate graphics that steel bar arrangement is completed.
Fig. 7 is Fig. 6 profile.
Fig. 8 is the graphics that two pieces of precast concrete bottom plate connections are completed.
Fig. 9 is that two pieces of precast concrete bottom plates of arrangement connection reinforcing bar are connected graphics with central sill.
Figure 10 is that Fig. 9 pours the graphics that cast-in-place layer concrete is completed.
Figure 11 is the graphics that side bar is connected reinforcing bar with plate.
Figure 12 is the side bar graphics of internal pre-buried pvc pipe.
Figure 13 is the steel bar arrangement graphics of side bar.
Figure 14 is the graphics that the precast concrete bottom plate of installation connection reinforcing bar is connected with side bar.
Figure 15 is that precast slab is connected the graphics completed with side bar.
In figure, the U-shaped connection reinforcing bar in 1 plate bottom；2nd, T-steel；3 edge of a wing preformed holes；4 web preformed holes；5 shear keies；6 is prefabricated mixed
Coagulate native bottom surface template；7 precast concrete bottom plate longitudinal reinforcements；8 precast concrete bottom plate transverse steels；9 concrete prefabricated layers；10
The U-shaped connection reinforcing bar in plate top；11 concrete cast-in-situ layers；12 microdilatancy mortars；13 central sills；14th, pvc pipe；15 side bars are connected steel with plate
Muscle；16 side bars；17 grouting materials；18 side bar Reinforcements.
Embodiment
As shown in Fig. 1-Figure 15, easy connect band shear key reinforced concrete slab structure of the invention mainly includes shear key
5 (Fig. 3), precast concrete bottom plate (Fig. 5), concrete cast-in-situ layer 11 (Figure 10), the adjacent side docking of precast concrete bottom plate,
Each precast concrete bottom plate upper top sets shear key 5 and concrete cast-in-situ layer 11.Wherein, the structure of precast concrete bottom plate
And manufacturing process is as follows：
As Figure 1-Figure 5, the present invention is provided with shear key 5 on precast concrete bottom plate, according in Practical Project, shearing resistance
Key 5 needs the shearing born and pulling force to determine the distribution of shear key 5.Four sides of precast concrete bottom plate are T-steels 2, T-shaped
Steel 2 carries edge of a wing preformed hole 3 and web preformed hole 4.Indulged on the plate bottom of precast concrete bottom plate provided with precast concrete bottom plate
To reinforcing bar 7 and precast concrete bottom plate transverse steel 8, precast concrete bottom plate longitudinal reinforcement 7 and precast concrete bottom plate are horizontal
Reinforcing bar 8 is each passed through edge of a wing preformed hole 3, and is welded on edge of a wing preformed hole 3.During construction, with four T-steels 2 and concrete
Native bottom surface template 6 is template casting concrete preformed layer 9, and precast concrete bottom plate is made.
The edge of a wing of the thickness of precast concrete bottom plate and T-steel 2 is highly consistent, overlap plate thickness for actual design one
Half.The T-steel edge of a wing and the thickness of web, the length of web, the U-shaped connection reinforcing bar in plate bottom is not less than according to the pulling force that can be undertaken at this
1 pulling force that can undertake calculates the shape and size for determining shear key, and same patent is " the concrete folding plate floor of shear key, prefabricated
Construction and construction method (CN102839773A) " and " the improved concrete folding plate floor construction with shear key and connection side
Method (CN104727475A) ".
As shown in figure 1 to figure 13, splicing construction and spelling of the easy connect band shear key concrete folding plate in engineering structure
Connecing method mainly includes three kinds：
(1) as Figure 6-Figure 8, easy connect band shear key reinforced concrete slab and easy connect band shear key concrete
Connection between laminated floor slab, its connection structure and method are as follows：
(1) as shown in fig. 6, two pieces of precast concrete bottom plates are lifted into precalculated position, precast concrete bottom plate it is adjacent
Side is docked, and after docking, the web of T-steel 2 is in close contact in the same horizontal position；By the U-shaped connection reinforcing bar 1 in plate bottom from T-shaped
The web bottom of steel 2 passes through web preformed hole 4, two pieces of precast concrete bottom plates is closely connected, on the top of precast concrete bottom plate
The U-shaped connection reinforcing bar 10 in face installation plate top.
(2) as shown in fig. 7, on two pieces of precast slabs of above-mentioned connection casting concrete in-situ layer 11, concrete
In-situ layer 11 connects into strong construction with precast concrete bottom plate by the U-shaped connection reinforcing bar 10 of shear key 5 and plate top.
(3) as shown in figure 8, two pieces of precast concrete bottom plates adjacent side joint, the bottom surface of the web of T-steel 2
Microdilatancy mortar 12 is smeared, completes easy connect band shear key reinforced concrete slab and easy connect band shear key reinforced concrete slab
Between connection.
Such a connection method, it is equally applicable to precast concrete bottom plate end face and the docking connection of precast concrete bottom plate end face
Situation.
(2) as shown in Fig. 9-Figure 10, the connection of easy connect band shear key reinforced concrete slab and central sill 13, it is connected
Structures and methods are as follows：
(1) as shown in figure 9, two pieces of precast concrete bottom plates are lifted into the both sides of central sill 13, two pieces of precast concrete bottom plates
Side bottom connect with beam outer ledge line, the web of the T-steel 2 of two pieces of precast concrete bottom plates in the same horizontal position,
And there is one section of horizontal range centre；The U-shaped connection reinforcing bar 1 in plate bottom is passed through into web preformed hole 4 at the top of the web of T-steel 2, tightly
Two pieces of precast concrete bottom plates of close connection, in the U-shaped connection reinforcing bar 10 in the top surface installation plate top of precast concrete bottom plate.
(2) as shown in Figure 10, casting concrete in-situ layer 11, concrete on two pieces of precast slabs of above-mentioned connection
In-situ layer 11 connects into strong construction with precast concrete bottom plate by the U-shaped connection reinforcing bar 10 of shear key 5 and plate top.
Such a connection method, it is equally applicable to the situation that precast concrete bottom plate end face connects with central sill.
(3) as shown in Figure 11-Figure 15, the connection of easy connect band shear key reinforced concrete slab and side bar 16, it is connected
Structures and methods are as follows：
(1) as shown in figures 11-13, side bar is when making, the outside casting concrete of side bar Reinforcement 18, on side
The pre-buried pvc pipe 14 in longitudinal direction in beam 16, pvc pipe 14 in the inner side of side bar Reinforcement 18, the diameter of pvc pipe 14 be more than side bar with
Plate connection reinforcing bar 15 diameter 5mm；
(2) as shown in Figure 11, Figure 14, precast concrete bottom plate is lifted on side bar, the end of precast concrete bottom plate
The distance snapped into side bar 16 is more than 100mm；The both ends that side bar is connected to reinforcing bar 15 with plate are inserted respectively into the abdomen of T-steel 2
In plate preformed hole 4 and pvc pipe 14, the perfusion grouting material 17 in pvc pipe 14, complete side bar and reinforcing bar 15 and side bar 16 are connected with plate
Connection.
(3) as shown in figure 15, casting concrete in-situ layer 11, concrete cast-in-situ on the precast slab of above-mentioned connection
Layer 11 is connected reinforcing bar 15 with plate by shear key and side bar with precast concrete bottom plate and connects into strong construction.
Embodiment result shows, of the invention：1. the surrounding of precast concrete bottom plate sets T-steel connector, concrete
Native bottom plate it is firmer, and save the template of side when making precast concrete bottom plate, make more convenient；2. precast concrete
By being interspersed in the U-shaped connection bar connecting of shaped steel between bottom plate, site operation speed is fast, and the power transmission of plate bottom sagging moment is reliable, in advance
Being connected firmly between concrete floor processed；3. precast concrete bottom end is connected bar connecting using side bar with side bar with plate,
Convenient and quick construction, precast concrete bottom end and side bar firm and reliable connection；4. due to using prefabricated and cast-in-place combination
Mode, the wet trade amount at the scene of reducing, ensure the globality of structure, save the template of field operation, energy-conserving and environment-protective, accord with green and build
The demand for development built.The present invention has very big application space.
Claims (8)
1. a kind of easily connect band shear key reinforced concrete slab structure, it is characterised in that the structure includes：It is shear key, prefabricated
Concrete floor, concrete cast-in-situ layer, the adjacent side docking of precast concrete bottom plate, each precast concrete bottom plate upper top
Shear key and concrete cast-in-situ layer are set；Wherein, the structure of precast concrete bottom plate is as follows：
Four sides of precast concrete bottom plate are T-steels, and T-steel carries edge of a wing preformed hole and web preformed hole；Prefabricated mixed
The plate bottom for coagulating native bottom plate is provided with precast concrete bottom plate longitudinal reinforcement and precast concrete bottom plate transverse steel, precast concrete
Bottom plate longitudinal reinforcement and precast concrete bottom plate transverse steel are each passed through edge of a wing preformed hole, and are welded on the preformed hole of the edge of a wing.
2. according to the easy connect band shear key reinforced concrete slab structure described in claim 1, it is characterised in that concrete
The thickness of native bottom plate and the edge of a wing of T-steel are highly consistent, and the half of plate thickness is overlapped for actual design.
3. a kind of connection method of the easy connect band shear key reinforced concrete slab structure described in claim 1, its feature exist
In the connection method between easy connect band shear key reinforced concrete slab and easy connect band shear key reinforced concrete slab is such as
Under：
(1) two pieces of precast concrete bottom plates are lifted into precalculated position, the adjacent side docking of precast concrete bottom plate, docking
Afterwards, the web of T-steel is in the same horizontal position, and is in close contact；The U-shaped connection reinforcing bar in plate bottom is worn from the web bottom of T-steel
Web preformed hole is crossed, two pieces of precast concrete bottom plates are closely connected, in the U-shaped connection in top surface installation plate top of precast concrete bottom plate
Reinforcing bar；
(2) casting concrete in-situ layer, concrete cast-in-situ layer and concrete on two pieces of precast slabs of above-mentioned connection
Native bottom plate is by the U-shaped bar connecting that connects of shear key and plate top into strong construction；
(3) in the adjacent side joint of two pieces of precast concrete bottom plates, microdilatancy mortar is smeared in the bottom surface of the web of T-steel, complete
Connection between easy connect band shear key reinforced concrete slab and easy connect band shear key reinforced concrete slab.
4. a kind of connection method of the easy connect band shear key reinforced concrete slab structure described in claim 1, its feature exist
In the connection method of easy connect band shear key reinforced concrete slab and central sill is as follows：
(1) two pieces of precast concrete bottom plates are lifted into central sill both sides, the side bottom of two pieces of precast concrete bottom plates with outside beam
Lateral edges line connects, and the web of the T-steel of two pieces of precast concrete bottom plates is in the same horizontal position, and there is one section of level centre
Distance；The U-shaped connection reinforcing bar in plate bottom is passed through into web preformed hole at the top of the web of T-steel, closely connects two blocks of precast concretes
Bottom plate, in the U-shaped connection reinforcing bar in top surface installation plate top of precast concrete bottom plate；
(2) casting concrete in-situ layer, concrete cast-in-situ layer and concrete on two pieces of precast slabs of above-mentioned connection
Native bottom plate is by the U-shaped bar connecting that connects of shear key and plate top into strong construction.
5. a kind of connection method of the easy connect band shear key reinforced concrete slab structure described in claim 1, its feature exist
In the connection method of easy connect band shear key reinforced concrete slab and side bar is as follows：
(1) side bar is when making, casting concrete on the outside of side bar Reinforcement, the pre-buried pvc pipe in longitudinal direction, PVC in side bar
Pipe is on the inside of side bar Reinforcement；
(2) precast concrete bottom plate is lifted on side bar, the both ends that side bar is connected to reinforcing bar with plate are inserted respectively into T-steel
In web preformed hole and pvc pipe, grouting material is irrigated in pvc pipe, completes the connection that side bar is connected reinforcing bar and side bar with plate；
(3) the casting concrete in-situ layer on the precast slab of above-mentioned connection, concrete cast-in-situ layer and precast concrete bottom
Plate is connected bar connecting into strong construction by shear key and side bar with plate.
6. according to the connection method of the easy connect band shear key reinforced concrete slab structure described in claim 5, its feature exists
In the diameter of pvc pipe is connected 4~6mm of bar diameter with plate more than side bar.
7. according to the connection method of the easy connect band shear key reinforced concrete slab structure described in claim 5, its feature exists
In the distance in the lapping ends to side bar of precast concrete bottom plate is more than 100mm.
8. according to the connection method of the easy connect band shear key reinforced concrete slab structure described in one of claim 3~5, its
It is characterised by, using four T-steels and precast concrete bottom surface template as template casting concrete preformed layer, precast concrete is made
Bottom plate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109610710A (en) * | 2018-11-22 | 2019-04-12 | 中耕耘成建筑科技(江苏)有限公司 | A kind of environmentally protective reinforced concrete slab |
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| CN102061743A (en) * | 2010-11-26 | 2011-05-18 | 清华大学建筑设计研究院 | Frame-shear wall structure building of dismantling-free prefabricated reinforced concrete formwork and construction method thereof |
| CN102587554A (en) * | 2012-02-29 | 2012-07-18 | 黑龙江宇辉新型建筑材料有限公司 | Laminated concrete slab connected by bending reinforcing steel bars by 180 degrees within span and connection method |
| CN102839773A (en) * | 2012-08-08 | 2012-12-26 | 沈阳建筑大学 | Concrete composite slab floorslab with shear key and prefabricated construction and construction method |
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| CN103806546A (en) * | 2014-03-12 | 2014-05-21 | 初明进 | Connection method of precast reinforced concrete slabs |
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| CN205444613U (en) * | 2015-12-31 | 2016-08-10 | 浙江绿筑建筑***集成有限公司 | Be applied to prefabricated coincide floor connecting piece of assembled steel construction building |
| CN205688573U (en) * | 2016-06-01 | 2016-11-16 | 潍坊金艺钢结构工程技术咨询有限公司 | Prefabricated assembled floorboard attachment means |
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| CN106368365A (en) * | 2016-11-16 | 2017-02-01 | 沈阳建筑大学 | Through bar type concrete composite floor slab structure and manufacturing and assembling method thereof |
| CN207525960U (en) * | 2017-09-30 | 2018-06-22 | 沈阳建筑大学 | Easy connect band shear key reinforced concrete slab structure |
| CN110094006A (en) * | 2019-05-27 | 2019-08-06 | 沈阳建筑大学 | A kind of assembled superimposed sheet and its assembly method |
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