CN210562896U - Close two-way prefabricated superimposed sheet structure of piece together formula - Google Patents

Close two-way prefabricated superimposed sheet structure of piece together formula Download PDF

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Publication number
CN210562896U
CN210562896U CN201921127721.3U CN201921127721U CN210562896U CN 210562896 U CN210562896 U CN 210562896U CN 201921127721 U CN201921127721 U CN 201921127721U CN 210562896 U CN210562896 U CN 210562896U
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China
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prefabricated
slab
steel bars
reinforcing steel
close
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CN201921127721.3U
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Chinese (zh)
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陈乐琦
田炜
吴敦军
李宁
卢旦
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Nanjing Yangtze River Urban Architectural Design Co Ltd
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Nanjing Yangtze River Urban Architectural Design Co Ltd
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Abstract

The utility model discloses a close-spliced bidirectional prefabricated laminated slab structure, which comprises a plurality of prefabricated laminated slabs spliced with each other, wherein one edge of each prefabricated laminated slab is provided with a plurality of connecting key grooves which are arranged in parallel, the connecting key grooves of the left prefabricated laminated slab and the right prefabricated laminated slab are arranged at the same side, and the connecting key grooves of the front prefabricated laminated slab and the rear prefabricated laminated slab are arranged in a butt joint way; the connecting key grooves are internally provided with a plurality of connecting trusses, the connecting trusses comprise main reinforcing steel bars on the upper portion and first attached reinforcing steel bars and second attached reinforcing steel bars on the lower portion, folding connecting reinforcing steel bars are arranged between the first attached reinforcing steel bars and the main reinforcing steel bars and between the first attached reinforcing steel bars and the second attached reinforcing steel bars and the main reinforcing steel bars, and the first attached reinforcing steel bars and the second attached reinforcing steel bars are arranged in two pairs of connecting key grooves which are adjacent. Compared with the prior art, the utility model discloses a close two-way prefabricated superimposed sheet structure of piece together formula connects safer, reliable more, and is applicable in the large-span floor to the site operation is convenient, can remove a large amount of template engineering in the scene from, saves artifically.

Description

Close two-way prefabricated superimposed sheet structure of piece together formula
Technical Field
The utility model relates to a close two-way prefabricated superimposed sheet structure of piece together formula belongs to structural design and prefabricated assembly building technical field.
Background
The application amount of the precast concrete composite floor slab in the existing assembly type building engineering is large and wide. The precast concrete composite floor slab is designed by splitting a precast composite bidirectional slab. The periphery of a bottom plate of the prefabricated overlapped bidirectional plate extends out of steel bars, a post-pouring section is reserved at the splicing joint of the floor slab, and the bottom steel bars of the prefabricated overlapped bidirectional plate at the post-pouring section extend out and are in lap joint with each other. The prefabricated superimposed sheet stretches out the reinforcing bar all around and makes component production efficiency low, and this kind of connected mode need water section position department support template after on-the-spot, need evade the reinforcing bar collision during the installation, and the construction is comparatively loaded down with trivial details, and the efficiency of construction is low.
On the other hand, when the precast concrete composite floor slabs are connected in a close-fitting manner, on-site formwork erection can be omitted, the construction efficiency is high, but cracks are easy to appear at the joints of the precast concrete composite floor slabs, and the use of the precast concrete composite slab floors is influenced. In the past, the seam splicing treatment has two modes, one mode is plastering treatment at the seam splicing part, and the other mode is gluing treatment at the seam splicing part, and the two modes have no ideal effect on crack control and cannot achieve the expected effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve is not enough to above-mentioned prior art, and provides a close two-way prefabricated coincide plate structure of formula of piecing together.
In order to solve the technical problem, the utility model discloses a technical scheme is:
a close-spliced bidirectional prefabricated laminated slab structure comprises a plurality of prefabricated laminated slabs spliced with each other, wherein a plurality of connecting key grooves are formed in one edge of each prefabricated laminated slab and arranged in parallel, the connecting key grooves of a left prefabricated laminated slab and a right prefabricated laminated slab are arranged on the same side, and the connecting key grooves of the front prefabricated laminated slab and the rear prefabricated laminated slab are arranged in a butt joint mode; be provided with a plurality of connection trusses in the connecting key groove, connect the truss including the main reinforcement on upper portion and first additional reinforcement and the second additional reinforcement of lower part, first additional reinforcement and second additional reinforcement respectively with be provided with the folding joint reinforcing bar between the main reinforcement, first additional reinforcement and second additional reinforcement all set up in a pair of connecting key groove of two prefabricated superimposed sheets butt joints in front and back, first additional reinforcement and second additional reinforcement set up respectively about in adjacent two pairs of connecting key groove.
As a further preferable scheme, the surface of the prefabricated composite slab is provided with a concrete layer, and the concrete layer is embedded in the main steel bars.
As a further preferred scheme, the side edge of the prefabricated composite slab is provided with a slab bottom steel bar, the slab bottom steel bar is positioned between two continuous connecting key grooves, the slab bottom steel bar is of a 90-degree bending structure, and the slab bottom steel bar is partially positioned in the prefabricated composite slab.
As a further preferred scheme, the bottom of the edge of the spliced prefabricated composite slab and the adjacent prefabricated composite slab is provided with a slab bottom groove, and the outer edge of the slab bottom groove is provided with a slab bottom chamfer.
As a further preferable scheme, the plate bottom groove is filled with concrete.
Compared with the prior art, the close-spliced bidirectional prefabricated laminated slab structure of the utility model has safer and more reliable connection of the prefabricated laminated bidirectional slabs and is applicable to large-span floor slabs; the close-spliced prefabricated superposed bidirectional plate is convenient to construct on site, a large amount of template engineering on site can be omitted, and labor is saved; the reinforcing steel bars at the splicing seams of the prefabricated overlapped bidirectional plates do not need to extend out of the plate sides, so that the problem that the reinforcing steel bars are not easy to install due to field collision is solved; the lap joint connecting steel bars are directly arranged in the connecting key grooves, so that the steel bar binding work is saved, and the construction process is saved; two-way joint treatment is carried out at the joint of the plate bottom, so that the prefabricated composite floor slab which is assembled densely is not easy to crack.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a top plan view of a prefabricated composite slab;
FIG. 4 is a schematic view of the connection of two adjacent prefabricated slabs;
the steel plate comprises 1-prefabricated laminated slab, 2-connecting key grooves, 3-main reinforcing steel bars, 4-first auxiliary reinforcing steel bars, 5-second auxiliary reinforcing steel bars, 6-folding connecting reinforcing steel bars, 7-plate bottom chamfers, 8-plate bottom reinforcing steel bars and 9-plate bottom grooves.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model discloses a close two-way prefabricated superimposed sheet structure of formula of piecing together, prefabricated superimposed sheet 1 including a plurality of mutual concatenations, a limit of prefabricated superimposed sheet 1 is provided with a plurality of connection keyways 2, connects 2 wide 100mm of keyway, 25mm at the bottom of the keyway bottom apart from the board, 2 intervals 200mm of two adjacent connection keyways, and a plurality of connection keyways 2 are parallel arrangement each other, and two prefabricated superimposed sheet 1's connection keyway 2 homonymies are arranged about, and two prefabricated superimposed sheet 1's connection keyway 2 docks around are arranged, and prefabricated superimposed sheet 1 of polylith splices each other and is a whole floor.
Be provided with a plurality of connection trusses in the connecting key groove 2, adjacent two connection truss intervals are not more than 600mm, the connection truss includes the main reinforcement 3 on upper portion and the first additional steel bar 4 and the second additional steel bar 5 of lower part, first additional steel bar 4 and second additional steel bar 5 respectively with be provided with folding joint reinforcing bar 6 between the main reinforcement 3, first additional steel bar 4 and second additional steel bar 5 all set up in a pair of connecting key groove 2 of two prefabricated superimposed sheets 1 butt joints in the front and back, play the connection effect for two prefabricated superimposed sheets 1 form a whole, first additional steel bar 4 and second additional steel bar 5 set up respectively about adjacent two pairs of connecting key groove 2 in.
The surface of the prefabricated composite slab 1 is provided with a concrete layer, and the main steel bars 3 are embedded in the concrete layer.
The side of the prefabricated composite slab 1 is provided with a bottom steel bar 8, the bottom steel bar 8 is positioned between two continuous connecting keyways 2, the bottom steel bar 8 is of a 90-degree bending structure, the bottom steel bar 8 is partially positioned in the prefabricated composite slab 1, and the bottom steel bar 8 positioned outside the prefabricated composite slab 1 is connected to the main steel bar 3 or the folding connecting steel bar 6.
By adopting the splicing mode, the post-pouring section connecting mode between the prefabricated superposed bidirectional plates can be cancelled, the post-pouring section connection of the prefabricated superposed bidirectional plates is changed into close splicing connection, and the problem that the construction of the prefabricated superposed bidirectional plates is complicated is solved.
Further, the bottom of the edge of the spliced prefabricated composite slab 1 and the adjacent prefabricated composite slab 1 is provided with a slab bottom groove 9, the length of the slab bottom groove 9 is 100mm, the width of the slab bottom groove 9 is 5mm, the outer edge of the slab bottom groove 9 is provided with a slab bottom chamfer 7, and the slab bottom chamfer 7 is 10mm by 10 mm; concrete is filled in the plate bottom groove 9, a net piece can be installed in the plate bottom groove 9, high-strength anti-crack mortar is used for leveling, and the plate bottom chamfer 7 is filled with a special micro-expansion joint mixture.
By adopting the splicing mode, the problem that cracks are easy to appear at the close splicing seams of the prefabricated composite floor slabs can be solved, so that the close splicing type connecting technology of the prefabricated composite slab slabs is more perfect.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (5)

1. The utility model provides a two-way prefabricated coincide plate structure of close piece together formula which characterized in that: the prefabricated composite slab comprises a plurality of prefabricated composite slabs (1) which are spliced with each other, wherein a plurality of connecting key grooves (2) are formed in one edge of each prefabricated composite slab (1), the connecting key grooves (2) are arranged in parallel, the connecting key grooves (2) of the left prefabricated composite slab and the right prefabricated composite slab (1) are arranged on the same side, and the connecting key grooves (2) of the front prefabricated composite slab and the connecting key grooves (2) of the rear prefabricated composite slab (1) are arranged in a butt joint; be provided with a plurality of connection trusses in connecting keyway (2), the connection truss includes main reinforcement (3) on upper portion and first additional steel bar (4) and second additional steel bar (5) of lower part, first additional steel bar (4) and second additional steel bar (5) are provided with folding joint reinforcing bar (6) respectively with between main reinforcement (3), first additional steel bar (4) and second additional steel bar (5) all set up in a pair of connecting keyway (2) of two prefabricated superimposed sheet (1) docks in the front and back, first additional steel bar (4) and second additional steel bar (5) set up respectively about in adjacent two pairs of connecting keyway (2).
2. The close-coupled bidirectional prefabricated laminated plate structure according to claim 1, wherein: the surface of the prefabricated composite slab (1) is provided with a concrete layer, and the concrete layer is embedded with the main steel bars (3).
3. The close-coupled bidirectional prefabricated laminated plate structure according to claim 1, wherein: prefabricated superimposed sheet (1) side is provided with board end reinforcing bar (8), and board end reinforcing bar (8) are located between two continuous connecting key ways (2), and board end reinforcing bar (8) are 90 curved structure, and board end reinforcing bar (8) part is located prefabricated superimposed sheet (1).
4. The close-coupled bidirectional prefabricated laminated plate structure according to claim 1, wherein: the prefabricated composite slab is characterized in that a slab bottom groove (9) is formed in the edge bottom of the spliced prefabricated composite slab (1) and the adjacent prefabricated composite slab (1), and a slab bottom chamfer (7) is formed in the outer edge of the slab bottom groove (9).
5. The close-coupled bidirectional prefabricated laminated plate structure according to claim 4, wherein: and concrete is filled in the plate bottom groove (9).
CN201921127721.3U 2019-07-18 2019-07-18 Close two-way prefabricated superimposed sheet structure of piece together formula Active CN210562896U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921127721.3U CN210562896U (en) 2019-07-18 2019-07-18 Close two-way prefabricated superimposed sheet structure of piece together formula

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921127721.3U CN210562896U (en) 2019-07-18 2019-07-18 Close two-way prefabricated superimposed sheet structure of piece together formula

Publications (1)

Publication Number Publication Date
CN210562896U true CN210562896U (en) 2020-05-19

Family

ID=70626501

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921127721.3U Active CN210562896U (en) 2019-07-18 2019-07-18 Close two-way prefabricated superimposed sheet structure of piece together formula

Country Status (1)

Country Link
CN (1) CN210562896U (en)

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