CN113323217A - Prefabricated sandwich laminated slab - Google Patents
Prefabricated sandwich laminated slab Download PDFInfo
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- CN113323217A CN113323217A CN202110612174.3A CN202110612174A CN113323217A CN 113323217 A CN113323217 A CN 113323217A CN 202110612174 A CN202110612174 A CN 202110612174A CN 113323217 A CN113323217 A CN 113323217A
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- Prior art keywords
- concrete layer
- slab
- prefabricated sandwich
- prefabricated
- sandwich
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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
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
Abstract
The invention relates to a prefabricated sandwich composite slab, which comprises a steel bar net piece, a first concrete layer, a sandwich board, a second concrete layer, tie bars and hanging rings, wherein the hanging rings and the tie bars are arranged on the net surface of the steel bar net piece and are integrally cast by the first concrete layer, the sandwich board is laid on the surface of the first concrete layer, the sandwich board is provided with a through hole corresponding to each tie bar and hanging ring, the second concrete layer is cast above the sandwich board, the first concrete layer and the second concrete layer are connected through a concrete column formed by the through holes, and the tie bars and the hanging rings extend out of the second concrete layer. According to the invention, the sandwich board is designed in the prefabricated laminated slab, so that the heat insulation and sound insulation performance of the laminated floor slab is improved, and the secondary heat insulation and sound insulation construction process is omitted; the tie bars are used as the shear connectors between the laminated slab and the cast-in-place concrete, so that the self weight is light, and the manufacturing cost is reduced.
Description
Technical Field
The invention relates to the technical field of assembly type building production, in particular to a prefabricated sandwich laminated slab.
Background
With the further promotion and improvement of the requirements of building energy conservation and living quality, the heat preservation and sound insulation performance of building floors becomes one of the control indexes of building quality.
The traditional composite floor slab has poor heat insulation and sound insulation performance, the construction of the traditional composite floor slab also usually adopts a floating floor slab method of post heat insulation treatment, the method has complicated steps, the ground of the formed floor slab is easy to have common quality problems of cracking, hollowing and the like, the quality control is poor, and the mass energy of living goods is influenced; in addition, the traditional laminated slab adopts a large number of steel bar trusses, and is medium in weight and high in production cost. Therefore, a novel integrated laminated plate which has the functions of heat preservation and sound insulation and reduces the weight on the premise of meeting the structural design strength is developed, and the laminated plate has wide market prospect and good economic and social benefits.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a novel integrated laminated plate which has the functions of heat preservation and sound insulation and reduces the weight on the premise of meeting the structural design strength.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a prefabricated sandwich superimposed sheet, includes steel bar mesh piece, first concrete layer, battenboard, second concrete layer, drawknot reinforcing bar and rings, it is a plurality of rings and many the drawknot reinforcing bar is located it is whole to pour into by first concrete layer on the wire side of steel bar mesh piece, the battenboard lays in the surface of first concrete layer, just the battenboard is relative each drawknot reinforcing bar and rings are equipped with the perforation, and second concrete layer pour in the top of battenboard, first concrete layer and second concrete layer pass through the concrete column that the perforation formed is connected, drawknot reinforcing bar and rings all stretch out the second concrete layer.
In a preferred embodiment of the prefabricated sandwich composite slab provided by the invention, the tie bars are in a Z shape, and a plurality of tie bars are distributed on the mesh surface of the reinforcing mesh sheet in a dotted or plum shape.
In a preferred embodiment of the prefabricated sandwich composite slab provided by the invention, the hanging ring is formed by bending two ends of a U-shaped steel bar towards the same side or different sides.
In a preferred embodiment of the prefabricated sandwich laminated slab provided by the invention, the through holes of the sandwich plate are in a shape of a circle, an ellipse, a triangle, a rectangle, a prism or a quincunx.
In a preferred embodiment of the prefabricated sandwich laminated slab provided by the invention, the through holes on the sandwich plate have the same or different shapes.
In a preferred embodiment of the prefabricated sandwich laminated slab provided by the invention, the sandwich board is a composite board formed by compounding a thermal insulation material and a sound insulation material.
In a preferred embodiment of the prefabricated sandwich composite slab provided by the invention, the reinforcing mesh does not extend out of the slab end of the composite slab, a plurality of spiral reinforcing steel bars arranged in parallel are anchored at the slab end of the composite slab, the spiral reinforcing steel bars are horizontally bound or welded to the reinforcing mesh in the composite slab, and the end parts of the spiral reinforcing steel bars do not extend out of the composite slab.
In a preferred embodiment of the prefabricated sandwich composite slab provided by the invention, the prefabricated sandwich composite slab further comprises connecting steel bars, wherein one ends of the connecting steel bars are bound or welded with the spiral steel bars, and the other ends of the connecting steel bars are anchored in the end supports of the composite slab.
In a preferred embodiment of the prefabricated sandwich composite slab provided by the invention, the bottom of the composite slab is further provided with a decorative surface layer.
Compared with the prior art, the prefabricated sandwich composite slab provided by the invention has the beneficial effects that:
according to the invention, the sandwich board is designed in the prefabricated laminated slab, so that the heat preservation and sound insulation performance of the laminated slab is improved, the secondary heat preservation and sound insulation construction process is omitted, and the design of the sandwich structure ensures that the sandwich board is not damaged in the construction process, simultaneously reduces the self weight of the laminated slab, saves the using amount of concrete and reduces the manufacturing cost; the sandwich plate is provided with the through holes, so that the first concrete layer and the second concrete layer are connected into a whole through the concrete columns formed by the through holes, and the integral stress performance of the laminated floor slab is improved; the design of the tie bars increases the rigidity of the laminated slab, and the tie bars are also used as a shear connector between the laminated slab and cast-in-place concrete, so that compared with the traditional truss laminated slab, the self weight is light, the using amount of the bars is reduced, the manufacturing cost is reduced, and the shear resistance between the prefabricated laminated floor slab and the concrete junction surface of the cast-in-place layer is enhanced under the combined action of the tie bars and the hanging rings; the tie bars also have the supporting effect on the surface layer reinforcing steel bars in the floor slab cast-in-place layer, and the binding of the floor slab surface layer reinforcing steel bars is convenient during field construction.
The laminated slab structure designed by the invention has the advantages that no rib is produced at the slab end, when the laminated slab structure is constructed on site, only one end of the connecting steel bar needs to be arranged in the spiral steel bar extending out of the prefabricated bottom plate for fixing, the other end of the connecting steel bar is fixed with the main rib in the slab end support and then concrete is poured, the rib structure is not produced, the manufacturing process of the laminated slab is simplified, the manufacturing cost is reduced, and the laminated slab structure is convenient to store and transport; simultaneously also solved when the superimposed sheet installation the reinforcing bar that stretches out appear the problem of collision with reinforcing bars such as roof beam, post easily, improved construction installation effectiveness greatly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic structural view of a prefabricated sandwich composite panel according to the present invention;
FIG. 2 is a cross-sectional view A-A provided in FIG. 1;
FIG. 3 is a cross-sectional view B-B provided in FIG. 1;
FIG. 4 is a schematic view of the structure of the prefabricated sandwich composite panel provided by the present invention without exposing the ribs of the beard;
FIG. 5 is a diagram of the attachment nodes of the prefabricated sandwich laminate and laminate support as provided in FIG. 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
The embodiment provides a prefabricated sandwich composite slab 1, as shown in fig. 1 to fig. 3, comprising a steel mesh sheet 101, a first concrete layer 102, a sandwich plate 103, a second concrete layer 104, tie bars 105 and hanging rings 106.
A plurality of rings 106 and a plurality of tie bars 105 are arranged on the net surface of the steel mesh sheet 101 and are integrally poured by the first concrete layer 102, and the rings of the embodiment are used for: hoisting points are provided for hoisting the laminated slab, so that the laminated slab is convenient to hoist; the design of the tie bars increases the rigidity of the laminated slab, and the tie bars are also used as a shear connector between the laminated slab and cast-in-place concrete, so that compared with the traditional truss laminated slab, the self weight is light, the using amount of the bars is reduced, the manufacturing cost is reduced, and the shear resistance between the prefabricated laminated floor slab and the concrete junction surface of the cast-in-place layer is enhanced under the combined action of the tie bars and the hanging rings; meanwhile, the tie bars also have the supporting effect on surface layer reinforcing steel bars in the floor slab cast-in-place layer, and the binding of the surface layer reinforcing steel bars of the floor slab is convenient during site construction.
The sandwich board 103 is laid on the surface of the first concrete layer 102, the sandwich board 103 is provided with through holes 1030 for the tie bars 105 and the hanging rings 106, and the second concrete layer 104 is poured above the sandwich board 103, preferably, the sandwich board 103 of the embodiment is a composite board formed by compounding heat insulation materials and sound insulation materials, the heat insulation and sound insulation materials are arranged in the laminated slab, so that the laminated slab has excellent heat insulation and sound insulation performance, the built-in structure is adopted, compared with the traditional floating floor construction method, the secondary heat insulation and sound insulation construction process is omitted, the heat insulation and sound insulation materials are not damaged in the construction process, the first concrete layer 102 and the second concrete layer 104 are connected through the through holes 1030, and the tie bars 105 and the hanging rings 106 extend out of the second concrete layer 104. According to the embodiment, the sandwich board is designed in the prefabricated laminated slab, so that the heat preservation and sound insulation performance of the laminated slab is improved, secondary heat preservation and sound insulation construction procedures are omitted, the sandwich board is guaranteed not to be damaged in the construction process due to the design of the sandwich structure, the self weight of the laminated slab is reduced, the using amount of concrete is saved, and the manufacturing cost is reduced; the through holes are formed in the sandwich plate, so that the first concrete layer and the second concrete layer can form a whole, and the integral stress performance of the laminated floor slab is improved.
Preferably, the hanging ring 106 is formed by bending two ends of a U-shaped steel bar to the same side or different sides.
In the specific embodiment: firstly, arranging a die for the laminated plate on a production die table, arranging a steel bar mesh and a hanging ring, wherein the horizontal part of the hanging ring needs to be arranged at the lower layer of the steel bar mesh; then arranging tie bars, wherein the horizontal parts of the bottoms of the tie bars need to be arranged at the lower layer of the steel bar meshes to hook the steel bar meshes, pouring concrete to finish the manufacture of a first concrete layer, then laying and fixing a sandwich plate, and the positions of the through holes of the sandwich plate need to be determined according to the distribution of the tie bars; then continuing to pour concrete to finish the manufacture of a second concrete layer, and finally performing galling treatment on the top of the laminated slab to finish the setting of a rough surface; and finally, maintaining and demolding to finish all production steps of the prefabricated sandwich laminated slab.
Example two
On the basis of the first embodiment, the tie bars 105 of the present embodiment are Z-shaped, as shown in fig. 1 and fig. 3, a plurality of tie bars 105 are distributed on the mesh surface of the reinforcing mesh sheet 101 in a dotted or plum blossom shape, and the specific number and diameter are determined according to the design, so as to meet the structural strength design of the laminated floor slab.
EXAMPLE III
Based on the first embodiment or the second embodiment, the through holes 1030 of the sandwich plate 103 of the present embodiment are configured to be one of circular, oval, triangular, rectangular, prismatic and quincunx shapes, as shown in fig. 1, the present embodiment is exemplarily circular, and other embodiments may be other shapes such as oval, triangular and the like.
Specifically, the through holes 1030 on the sandwich plate 103 in the present embodiment have the same shape, and in other embodiments, the through holes 1030 on the sandwich plate 103 have different shapes, that is: different perforations in the same sandwich panel take different shapes.
Example four
Based on any one of the above embodiments, this embodiment is further right the superimposed sheet is optimally designed, as shown in fig. 4, the reinforcing mesh 101 of this embodiment does not stretch out of the plate end of the superimposed sheet 1, the plate end of the superimposed sheet 1 is anchored with a plurality of spiral reinforcements 107 arranged in parallel, the spiral reinforcements 107 are horizontally bound or welded to the reinforcing mesh 101 in the superimposed sheet, and the end portion does not stretch out of the superimposed sheet 1. The structural design of ribs can not be produced, the manufacturing process of the laminated slab is simplified, the manufacturing cost is reduced, and the storage and the transportation are convenient; simultaneously also solved when the superimposed sheet installation the reinforcing bar that stretches out and the easy problem that the collision appears of reinforcing bars such as roof beam, post, wall, improved construction installation effectiveness greatly. Preferably, the stressed steel bar of the steel bar mesh connected with the spiral steel bar needs to penetrate through the spiral steel bar.
In order to realize the connection with the laminated slab support, the present embodiment is further designed with a connecting steel bar 2, as shown in fig. 4 and fig. 5, one end of the connecting steel bar 2 is bound or welded with the spiral steel bar 107, and the other end is anchored in the slab end support 3 of the laminated slab 1, preferably, the connecting steel bar is bound or welded through the spiral steel bar.
Preferably, each of the spiral reinforcing bars 107 of the present embodiment may be provided with 1 or more connecting reinforcing bars 2.
Preferably, the connecting steel bar 2 of the present embodiment may adopt one of a "one" -type steel bar, an "L" -type steel bar, and an "S" -type steel bar, as shown in fig. 4, the connecting steel bar of the present embodiment is an "S" -type steel bar, and in other embodiments, depending on the design, a "one" -type or an "L" -type steel bar may be selected, and a "one" -type design is preferred.
The superimposed sheet structure of this embodiment design has realized that the board end does not go out the muscle, during site operation, only needs to arrange connecting reinforcement one end in and stretches out fix in the spiral reinforcement of prefabricated bottom plate, the other end is fixed with the main muscle in the board end support (also can not be fixed with main muscle) pour the back and pour concrete can.
EXAMPLE five
Based on any one of the above embodiments, the composite slab is further optimally designed, a decorative surface layer (not shown in the figure) is further arranged at the bottom of the composite slab, and the decorative surface layer of the embodiment is formed by pouring UHPC concrete or is connected with the composite slab through a connecting piece (not shown in the figure) by using a decorative plate. The decorative surface layer of this embodiment design has removed the decoration process of plastering from after the construction of coincide floor is accomplished, and decorative effect is good, ceiling fracture, hollowing scheduling problem can not appear.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. The utility model provides a prefabricated sandwich superimposed sheet which characterized in that: including steel bar mesh piece, first concrete layer, battenboard, second concrete layer, lacing wire and rings, it is a plurality of rings and many lacing wire locates whole is pour into by first concrete layer on the wire side of steel bar mesh piece, the battenboard lays in the surface of first concrete layer, just the battenboard is relative each lacing wire and rings are equipped with the perforation, second concrete layer pour in the top of battenboard, first concrete layer and second concrete layer pass through the concrete column that the perforation formed is connected, lacing wire and rings all stretch out the second concrete layer.
2. The prefabricated sandwich composite panel according to claim 1, wherein: the tie bars are Z-shaped, and a plurality of tie bars are distributed on the mesh surface of the reinforcing mesh sheet in a dotted or plum blossom shape.
3. The prefabricated sandwich composite panel according to claim 1, wherein: the lifting ring is formed by bending two ends of the U-shaped steel bar to the same side or different sides.
4. The prefabricated sandwich composite panel according to claim 1, wherein: the through holes of the sandwich plate are in one of a round shape, an oval shape, a triangular shape, a rectangular shape, a prismatic shape and a quincunx shape.
5. The prefabricated sandwich composite panel of claim 4, wherein: the perforations in the sandwich panel may be of the same or different shape.
6. The prefabricated sandwich composite panel according to claim 1, wherein: the sandwich board is a composite board formed by compounding a heat insulation material and a sound insulation material.
7. The prefabricated sandwich composite slab as claimed in any one of claims 1 to 6, wherein: the reinforcing bar net piece does not stretch out the board end of superimposed sheet, the board end anchor of superimposed sheet has many spiral reinforcement that set up side by side, spiral reinforcement horizontally ligature or weld in reinforcing bar net piece in the superimposed sheet, and the tip does not stretch out the superimposed sheet.
8. The prefabricated sandwich composite panel of claim 7, wherein: the composite slab is characterized by further comprising connecting steel bars, wherein one ends of the connecting steel bars are bound or welded to be connected with the spiral steel bars, and the other ends of the connecting steel bars are anchored in the laminated slab end support.
9. The prefabricated sandwich composite panel of claim 8, wherein: the bottom of superimposed sheet still is equipped with decorative cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110612174.3A CN113323217A (en) | 2021-06-02 | 2021-06-02 | Prefabricated sandwich laminated slab |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110612174.3A CN113323217A (en) | 2021-06-02 | 2021-06-02 | Prefabricated sandwich laminated slab |
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| CN113323217A true CN113323217A (en) | 2021-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110612174.3A Pending CN113323217A (en) | 2021-06-02 | 2021-06-02 | Prefabricated sandwich laminated slab |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115198958A (en) * | 2022-08-31 | 2022-10-18 | 金鹏装配式建筑有限公司 | Steel pipe truss prestressed concrete precast slab |
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2021
- 2021-06-02 CN CN202110612174.3A patent/CN113323217A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115198958A (en) * | 2022-08-31 | 2022-10-18 | 金鹏装配式建筑有限公司 | Steel pipe truss prestressed concrete precast slab |
| CN115198958B (en) * | 2022-08-31 | 2023-11-24 | 金鹏装配式建筑有限公司 | Steel pipe truss prestressed concrete precast slab |
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