CN213572576U - Common concrete prefabricated single-plate type composite floor splicing structure - Google Patents
Common concrete prefabricated single-plate type composite floor splicing structure Download PDFInfo
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- CN213572576U CN213572576U CN202021620620.2U CN202021620620U CN213572576U CN 213572576 U CN213572576 U CN 213572576U CN 202021620620 U CN202021620620 U CN 202021620620U CN 213572576 U CN213572576 U CN 213572576U
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- prefabricated
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- bolt
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 239000004567 concrete Substances 0.000 title abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000011178 precast concrete Substances 0.000 claims description 10
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 210000001503 joint Anatomy 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000009415 formwork Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
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Abstract
The utility model discloses a common concrete precast single-plate type composite floor splicing structure, which comprises a bottom plate and a cast-in-place composite layer poured on the bottom plate, wherein the bottom plate is formed by sequentially splicing precast single plates, the adjacent end parts on two adjacent precast single plates are respectively provided with a splicing inclined plane, and the two splicing inclined planes form a filling groove; the cast-in-place superposed layer fills the filling groove and covers the fixing piece and the connecting piece. The utility model discloses do not stay the post-cast strip when prefabricated veneer is assembled, reduced construction process, construction convenience has solved prefabricated veneer simultaneously and has stayed seam department in the butt joint and be difficult to align and keep the board end to level the problem, has solved the board seam and has received temperature and concrete shrinkage influence and easily crack problem.
Description
Technical Field
The utility model relates to an assembled concrete construction technique especially relates to a prefabricated single slab formula coincide floor piece structure of ordinary concrete.
Background
The prefabricated composite concrete floor slab for the house built nationwide at present is mainly formed by assembling common prefabricated concrete veneers into a bottom plate and pouring a concrete composite layer on the bottom plate. In the process of assembling and combining the precast concrete veneers, a post-cast strip with the thickness not less than 300mm is reserved between the plates, or the plates and the plates are directly spliced together, a secondary formwork is required during pouring of the post-cast strip, so that construction is inconvenient, the temperature shrinkage crack of the concrete of a secondary building is easy to occur at the post-cast strip, and quality problems are caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the common concrete prefabricated single-plate type composite floor splicing structure has the advantages that the post-cast strip is not left between the prefabricated single plates when the composite floor is prefabricated by concrete, the problems that the prefabricated single plates are difficult to align at the butt joint seam leaving positions to keep the plate bottoms smooth and the plate seams are easy to crack due to the influence of temperature and concrete shrinkage are solved.
In order to solve the technical problem, the technical scheme of the utility model is that: the common concrete prefabricated single-plate type composite floor splicing structure comprises a bottom plate and a cast-in-place laminated layer poured on the bottom plate, wherein the bottom plate is formed by sequentially splicing prefabricated single plates, the adjacent end parts of two adjacent prefabricated single plates are respectively provided with a splicing inclined surface, the two splicing inclined surfaces form a filling groove, the inner sides of the prefabricated single plates close to the splicing inclined surfaces are respectively provided with a fixing piece, and a connecting piece is connected between the fixing pieces on the two adjacent prefabricated single plates; the cast-in-place superposed layer fills the filling groove and covers the fixing piece and the connecting piece.
As a preferred technical scheme, the fixing member is a bolt pre-embedded in the prefabricated single plate, at least one row of bolts is arranged along the edge direction of the prefabricated single plate, and at least one bolt is arranged in each row; and reinforcing steel bars are respectively welded on two sides of the end part of the bolt in the prefabricated veneer.
According to the preferable technical scheme, the connecting piece is an angle steel, a screw hole corresponding to the bolt is formed in the angle steel, and the angle steel is sleeved on the corresponding bolt through the screw hole and fastened through a nut.
According to the preferable technical scheme, the connecting piece is a channel steel, screw holes corresponding to the bolts are formed in the bottom surface of the channel steel, and the channel steel is sleeved on the corresponding bolts through the screw holes and fastened through nuts.
As a preferable technical scheme, the cross section of the filling groove is in an inverted trapezoid shape, and the distance between the bottoms of two adjacent prefabricated single plates is 5-10 mm.
As a preferred technical scheme, the prefabricated single plate is a prefabricated single plate without ribs on the plate edge.
As a preferable technical scheme, the thickness of the bottom plate is 60 +/-0.5 mm, and the thickness of the cast-in-place laminated layer is 60-70 mm.
The common concrete prefabricated single-plate type composite floor splicing structure adopting the technical scheme comprises a bottom plate and a cast-in-place laminated layer poured on the bottom plate, wherein the bottom plate is formed by sequentially splicing prefabricated single plates, the adjacent end parts of two adjacent prefabricated single plates are respectively provided with a splicing inclined surface, the two splicing inclined surfaces form a filling groove, the inner sides of the prefabricated single plates close to the splicing inclined surfaces are respectively provided with a fixing part, and a connecting part is connected between the fixing parts on the two adjacent prefabricated single plates; the cast-in-place superposed layer fills the filling groove and covers the fixing piece and the connecting piece. The utility model discloses earlier link together the mounting on the adjacent prefabricated veneer through the connecting piece, thereby with the firm even as an organic whole of two adjacent prefabricated veneers, then cast-in-place superimposed layer through pouring with the connecting piece, the mounting, the prefabricated veneer of assembling and the firm constitution of cast-in-place superimposed layer are integrative, form the prefabricated coincide floor of concrete, the fastness of whole coincide floor has been guaranteed to rethread prefabricated veneer arrangement of reinforcement and cast-in-place superimposed layer arrangement of reinforcement, the wholeness and the shock resistance of floor have been improved, it is difficult to align to keep the board bottom to level problem and board seam to receive temperature and concrete shrinkage influence and the easy crack problem to solve to prefabricated veneer in butt joint, need not stay the post-cast strip between the prefabricated veneer when the prefabricated superimposed floor of concrete simultaneously, construction process has been reduced, and convenient construction.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:
FIG. 1 is a schematic diagram of the assembly of the prefabricated single boards of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another embodiment of the present invention.
In the figure: 1-prefabricating a veneer; 11-filling a blank plate; 2-a connector; 21-casting a laminated layer in situ; 22-a base plate; 23-a bolt; 24-adhesive tape paper; 25-assembling the inclined plane; 26-angle steel; 27-reinforcing steel bars; 28-channel steel; 29-a filling groove; 3, building; 31-laminated floor slab.
Detailed Description
The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.
As shown in fig. 1, 2 and 3, some of the concrete prefabricated composite floor slabs used in the currently constructed buildings are whole prefabricated composite floor slabs 31, that is, whole prefabricated composite floor slabs 22 are prefabricated according to the building size of a room of the building 3, and concrete is poured on the whole prefabricated composite floor slabs 22 after the whole prefabricated composite floor slabs 22 are assembled to the room of the building 3; some adopt precast concrete veneer 1 combination pin-connected panel, adopt the combination of polylith precast veneer 1 to assemble according to 3 room building sizes in building to accessible benefit blank board 11 and precast veneer 1 and assemble the cooperation, in order to adapt to the building size in 3 rooms in building, benefit blank board 11 and precast veneer 1's structure the same and size difference. And then the concrete superposed layer is poured on the combined and assembled bottom plate 22. The utility model discloses a joint structure of a common concrete prefabricated single-plate type composite floor slab, which comprises a bottom plate 22 and a cast-in-situ composite layer 21 poured on the bottom plate 22, wherein the bottom plate 22 is formed by sequentially assembling prefabricated single plates 1, the adjacent end parts on two adjacent prefabricated single plates 1 are respectively provided with an assembling inclined surface 25, the two assembling inclined surfaces 25 form a filling groove 29, the inner sides of the prefabricated single plates 1 close to the assembling inclined surfaces 25 are respectively provided with a fixing part, and a connecting part 2 is connected between the fixing parts on two adjacent prefabricated single plates 1; the cast-in-place laminate layer 21 fills the filling groove 29 and covers the fixing element and the connecting element 2. The fixing pieces on the adjacent prefabricated veneers 1 are connected together through the connecting pieces 2, so that the two adjacent prefabricated veneers 1 are firmly connected into a whole, and then the connecting pieces 2, the fixing pieces, the assembled prefabricated veneers 1 and the cast-in-place superposed layers 21 are firmly integrated through the cast-in-place superposed layers 21 to form the concrete prefabricated superposed floor slab 31. The section of the filling groove 29 is in an inverted trapezoid shape, so that concrete can be filled conveniently during pouring, the distance between the bottoms of two adjacent prefabricated veneers 1 is 5-10mm, and when a cast-in-place superposed layer 21 is poured, the gaps between the bottoms of the two prefabricated veneers 1 can be sealed by adhesive tape paper 24, and then concrete pouring can be performed. The prefabricated single plate 1 is a prefabricated single plate 1 which is prefabricated by common concrete materials and has no ribs at the plate edges, so that the method that post-cast strips are left between the prefabricated single plates 1 and connecting ribs are required to be left at the plate edges is changed. The thickness of the bottom plate 22 is 60 mm plus or minus 0.5mm, and the thickness of the cast-in-place laminated layer 21 is 60 mm to 70mm, so that the quality of the laminated floor slab 31 is ensured.
As shown in fig. 2 and fig. 3, the fixing element is a bolt 23 pre-embedded in the prefabricated veneer 1, at least one row of bolts 23 is arranged along the direction of the edge of the prefabricated veneer 1, and at least one bolt 23 is arranged in each row; the bolts 23 are respectively welded with the reinforcing steel bars 27 at both sides of the end part in the prefabricated veneer 1, preferably, the bolts 23 of M12 are adopted as the bolts 23, and the reinforcing steel bars 27 have a length of 350mm and a diameter of 5 mm. The connecting piece 2 is an angle steel 26, a screw hole corresponding to the bolt 23 is formed in the angle steel 26, and the angle steel 26 is sleeved on the corresponding bolt 23 through the screw hole and fastened through a nut; the connecting piece 2 can also be a channel steel 28, a screw hole corresponding to the bolt 23 is formed in the bottom surface of the channel steel 28, and the channel steel 28 is sleeved on the corresponding bolt 23 through the screw hole and fastened through a nut. Preferably, the utility model discloses a bolt 23 is followed 1 limit portion direction of prefabricated veneer is provided with two rows, and each row bolt 23 is provided with two, and is close to the bolt 23 of 1 limit portion of prefabricated veneer and is 300mm apart from 1 limit of prefabricated veneer, and two bolt 23 intervals are 250mm in the same row.
The utility model discloses a 1 on-spot pin-connected panel modes of ordinary precast concrete veneer, the inconvenience that needs the formwork of the post-cast strip secondary pouring of having avoided reserving, and adopt the flange edge to have out the prefabricated veneer 1 of muscle to add angle steel 26 or channel-section steel 28 with bolt 23 the constructional connection way, the construction process of prefabricated veneer 1 formula coincide floor has been reduced, the level and smooth of 1 board seam bottom of two prefabricated veneers has been guaranteed, the wholeness and the shock resistance of floor have been improved, the productivity is improved, and there is reliable assurance to the quality.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (7)
1. Ordinary precast concrete veneer formula coincide floor piece structure, include the bottom plate and pour the cast-in-place coincide layer on the bottom plate, the bottom plate is assembled in proper order by prefabricated veneer and is formed its characterized in that: the adjacent end parts of two adjacent prefabricated single plates are respectively provided with an assembling inclined surface, the two assembling inclined surfaces form a filling groove, the inner sides of the prefabricated single plates close to the assembling inclined surfaces are respectively provided with a fixing piece, and a connecting piece is connected between the fixing pieces on the two adjacent prefabricated single plates; the cast-in-place superposed layer fills the filling groove and covers the fixing piece and the connecting piece.
2. A joint structure of a common precast concrete single-slab composite floor slab as claimed in claim 1, wherein: the fixing piece is bolts pre-embedded in the prefabricated single plate, at least one row of bolts is arranged along the edge direction of the prefabricated single plate, and at least one bolt is arranged in each row; and reinforcing steel bars are respectively welded on two sides of the end part of the bolt in the prefabricated veneer.
3. A joint structure of a common precast concrete single-slab composite floor slab as claimed in claim 2, wherein: the connecting piece is an angle steel, a screw hole corresponding to the bolt is formed in the angle steel, and the angle steel is sleeved on the corresponding bolt through the screw hole and fastened through a nut.
4. A joint structure of a common precast concrete single-slab composite floor slab as claimed in claim 2, wherein: the connecting piece is a channel steel, a screw hole corresponding to the bolt is formed in the bottom surface of the channel steel, and the channel steel is sleeved on the corresponding bolt through the screw hole and fastened through a nut.
5. A joint structure of a common precast concrete single-slab composite floor slab as claimed in claim 1, wherein: the section of the filling groove is in an inverted trapezoid shape, and the distance between the bottoms of two adjacent prefabricated single plates is 5-10 mm.
6. A joint structure of a common precast concrete single-slab composite floor slab as claimed in claim 1, wherein: the prefabricated single board is a prefabricated single board without ribs at the board edges.
7. A joint structure of a common precast concrete single-slab type composite floor slab as claimed in any one of claims 1 to 6, wherein: the thickness of the bottom plate is 60 +/-0.5 mm, and the thickness of the cast-in-place superposed layer is 60-70 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021620620.2U CN213572576U (en) | 2020-08-06 | 2020-08-06 | Common concrete prefabricated single-plate type composite floor splicing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021620620.2U CN213572576U (en) | 2020-08-06 | 2020-08-06 | Common concrete prefabricated single-plate type composite floor splicing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213572576U true CN213572576U (en) | 2021-06-29 |
Family
ID=76555661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021620620.2U Active CN213572576U (en) | 2020-08-06 | 2020-08-06 | Common concrete prefabricated single-plate type composite floor splicing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213572576U (en) |
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- 2020-08-06 CN CN202021620620.2U patent/CN213572576U/en active Active
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Effective date of registration: 20231114 Address after: Rooms 101 and 102, north of Government Street and east of Wei'an Road (Fang'an Street Office), Fangzi District, Weifang City, Shandong Province, 261200 Patentee after: Weifang Luwei New Materials Co.,Ltd. Address before: Room 1305, building a, Weifang Construction Engineering Trade Training Center, 465 Wenhua Road, Kuiwen District, Weifang City, Shandong Province, 261000 Patentee before: SHANDONG YUANMENG GREEN BUILDING TECHNOLOGY Co.,Ltd. |