Fully-prefabricated floor slab capable of achieving bidirectional pipe penetrating and wiring

Abstract

The utility model discloses a fully prefabricated floor slab capable of bidirectionally penetrating pipes and wiring, which comprises a floor slab body and a bottom plate mounted on the bottom surface of the floor slab body, a plurality of bulge structures and groove structures extending along the span direction of the floor slab body are arranged on the bottom surface of the floor slab body, and the bulge structures and the groove structures are arranged on the bottom surface of the floor slab body. The protruding structures and the groove structures are alternately distributed in the span direction perpendicular to the floor slab body, so that the bottom face of the floor slab body forms a wave-shaped structure, and the bottom plate is connected with the protruding structures. Prestressed steel bars extending in the span direction of the floor slab body are embedded in the sides, close to the bottom plate, of the protruding structures, and penetrating holes are formed in part of or all the protruding structures and communicate with the grooves adjacent to the protruding structures. The device is simple in structure, low in manufacturing cost and high in precision, and the installation period is shortened.

Description

TECHNICAL FIELD

[0001] The utility model relates to modularization building structure especially a full prefabricated floor slab of two -way pipe wiring. BACKGROUND

[0002] At present, the mainstream assembly type building floor slab is steel bar truss composite floor slab, which adopts 6cm prefabricated bottom plate, guarantees the rigidity in the transportation and installation process through the truss on the bottom plate, pours 7cm composite layer concrete after arriving at the site, and the advantage lies in that it combines the characteristics of prefabricated formwork-free and support reduction, and also has the characteristics of good integrality and good waterproof and impermeability of cast-in-place concrete structure.

[0003] However, in the field of low-rise houses, the integrality requirement of the floor slab can be appropriately relaxed, therefore, most assembly type floor slabs adopt full prefabricated floor slab for the consideration of cost, construction period and precision, and the mainstream full prefabricated floor slab is the floor slab form of SP plate plus composite layer, SP is circular hole prestressed floor slab, which has the advantages of large span and low cost. SUMMARY

[0004] In view of the above problems in the prior art, the utility model aims to provide a full prefabricated floor slab of two-way pipe wiring, so as to solve the problems of long construction period, high cost and low precision in the prior art.

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme as follows: a full prefabricated floor slab of two-way pipe wiring, comprising a floor slab body and a bottom plate installed on the bottom surface of the floor slab body, wherein a plurality of convex structures and groove structures extending along the span direction of the floor slab body are arranged on the bottom surface of the floor slab body, the convex structures and the groove structures are alternately distributed along the direction perpendicular to the span direction of the floor slab body, so that the bottom surface of the floor slab body forms a wave-shaped structure, and the bottom plate is connected with the convex structures; prestressed steel bars extending along the span direction of the floor slab body are embedded in the side of the convex structure close to the bottom plate, and perforations are arranged on part or all of the convex structures, and the perforations are connected with the groove adjacent to the convex structure.

[0006] As optimization, steel mesh is embedded in the position close to the top surface in the floor slab body.

[0007] As optimization, the bottom surface of the floor body is provided with a corrugated steel plate, the cross-sectional shape of the corrugated steel plate is consistent with the wave shape structure formed by the convex structure and the groove structure, the corrugated steel plate is fitted with the wave shape structure, and the perforation is communicated with the groove structure.

[0008] As optimization, the bottom plate is a steel plate or an aluminum plate or a calcium silicate plate or a gypsum board.

[0009] As optimization, the cross-sectional shape of the convex structure and the groove structure is isosceles trapezoidal structure.

[0010] As optimization, a plurality of post-cast grooves are arranged at at least one side edge of the top surface of the floor body and are distributed along the extension direction of the edge, and the post-cast grooves penetrate the top surface of the floor body and the side surface corresponding to the edge.

[0011] As optimization, the post-cast groove is isosceles trapezoidal, and the width between the two legs gradually increases in the direction close to the edge of the floor body.

[0012] As optimization, a connecting steel bar is embedded in the post-cast groove, one end of the connecting steel bar is fixed in the post-cast groove, and the other end of the connecting steel bar extends out of the post-cast groove by a distance in the direction parallel to the top surface of the floor body.

[0013] Compared with the prior art, the prefabricated floor structure has the following advantages: the wave shape structure is arranged at the lower side of the prefabricated floor body, the perforation is arranged on the convex structure, the groove structure and the perforation are used to meet the later two-way pipeline penetrating, the wave shape structure and the penetrating pipeline are covered by the bottom plate, or a certain bottom reinforcement is provided, meanwhile, the prestressed steel bar in the convex structure ensures the large-span strength requirement of the prefabricated floor. The prefabricated floor structure is simple in structure, low in cost, convenient and fast in on-site installation, high in precision of the prefabricated structure, and can be used to construct the wall plate of the subsequent floor after installation, so that the installation period is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a partial enlarged view of Figure 1

[0016] In the drawing: 1 floor body, 2 convex structure, 3 groove structure, 4 prestressed steel bar, 5 steel mesh, 6 corrugated steel plate, 7 bottom plate, 8 post-cast groove, 9 connecting steel bar, 10 pre-buried pipe fitting. DETAILED DESCRIPTION

[0017] The utility model will be further described below in combination with the drawings and examples.

[0018] ​In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In the description of the present application, it should be explained that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is used, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance. In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined. In the description of the present application, it should also be explained that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0020] Embodiment: see Figures 1-2The application discloses a full-precast floor which can be bidirectionally threaded and wired, and belongs to the technical field of building construction.

[0021] The wave-shaped structure is arranged on the lower side of the precast floor body 1, the perforation is arranged on the convex structure 2, and the embedded pipe 10 is arranged in the perforation, so that the later bidirectional pipeline threading is realized through the groove structure 3 and the perforation, the wave-shaped structure and the threaded pipeline are covered by the bottom plate 7, or the bottom is reinforced, meanwhile, the prestressed steel bars 4 in the convex structure 2 ensure the large-span strength requirement of the precast floor. The precast floor has simple structure, low cost, convenient and fast on-site installation, high precision of the precast structure, and can be used for constructing the wall plate of a subsequent floor, and the installation period is reduced.

[0022] Specifically, the floor body 1 is formed by pouring concrete, and when the floor body 1 is produced, a wave-shaped formwork can be used as a bottom formwork for pouring, or a wave-shaped steel plate 6 which can be removed without disassembly is used, the prestressed steel bars 4 and the pipe for forming the perforation on the convex structure 2 are embedded when pouring, so that the floor body 1 is formed. In the embodiment, the wave-shaped steel plate 6 which can be removed without disassembly is used, and the wave-shaped steel plate 6 has high strength, so as to ensure the tensile and bending strength of the bottom of the floor body 1. In addition, if the formwork pouring mode is used, the bottom plate 7 has certain strength requirement, so as to ensure the tensile and bending strength of the floor body 1 in the direction perpendicular to the span direction. In the embodiment, the cross-sectional shape of the wave-shaped steel plate 6 is consistent with the wave-shaped structure formed by the convex structure 2 and the groove structure 3, so that the wave-shaped steel plate 6 is attached to the wave-shaped structure, the perforation is communicated with the groove structure 3, and the steel mesh 5 is embedded in the floor body 1 and close to the top surface.

[0023] The bottom plate 7 is a steel plate or an aluminum plate with certain strength, or a calcium silicate plate or a gypsum plate which only has a decoration or covering effect.

[0024] In the embodiment, the cross-sectional shape of the convex structure 2 and the groove structure 3 is isosceles trapezoidal structure, so as to have good stress characteristics and ensure the strength of the floor body.

[0025] In order to better connect with the adjacent floor, a plurality of post-cast grooves 8 are arranged at at least one side edge of the top surface of the floor body 1 and extend along the extension direction of the edge, the post-cast grooves 8 penetrating the top surface of the floor body 1 and the side surface corresponding to the edge side. The post-cast grooves 8 are isosceles trapezoidal, and the width between the two legs gradually increases in the direction close to the edge of the floor body 1. A connecting steel bar 9 is embedded in the post-cast groove 8, one end of the connecting steel bar 9 is fixed in the post-cast groove 8, and the other end extends out of the post-cast groove 8 in the direction parallel to the top surface of the floor body 1 by a distance, so that the post-cast grooves 8 are formed between the floors, and the connecting strength can be ensured by the connecting steel bar 9 arranged in the post-cast grooves 8, and the connecting steel bar 9 can be pre-embedded or placed during installation, so as to complete the connection between the floors.

[0026] The specific production process is as follows: 1, arranging a wave-shaped bottom die or a wave-shaped steel plate without disassembly; 2, long-line prestressed steel bar tensioning; 3, arranging a top steel mesh; 4, pre-embedding a transverse PVC pipe and a plate edge groove die; 5, pouring concrete; 6, vibrating; 7, smoothing the top of the plate; 8, curing and forming; and 9, prestressed steel bar tension release after the strength reaches the standard. When the floor is in the form of a standard-width strip, the same extrusion forming process as that of the SP plate can be used. Due to the process characteristics, the top transverse steel bar is no longer arranged, and the transverse perforation process needs to be completed before the concrete forms strength.

[0027] During construction, 1, after the wall plate construction is completed, the floor is hoisted to the top of the wall plate. The floor bottom elevation is adjusted through support. 2, according to the local node method, the connecting steel bar is arranged, and local pouring is performed. The top surface of the precast floor is smoothed to be flush. 3, the plate joint of the precast plate is sealed and soundproofed by using a rubber strip and a foaming agent. The pipeline is inserted at the plate bottom, and lamps are installed. 4, the bottom plate is sealed, and the panel is fixed on the protruding structure of the floor body by using self-tapping nails. 5, the plate joint is hung and plastered by using the decoration method. The plate bottom is scraped white, and the construction is completed.

[0028] In summary, the utility model has the advantages of:

[0029] 1, the bottom is wave-shaped (can be realized by a wave-shaped steel plate without disassembly, or a production line die can be used), which reduces the self-weight of the floor and the thickness of the plate, and pipelines can be passed through.

[0030] 2, the steel bar in the protruding structure of the floor is a prestressed steel bar, which meets the requirement of large-span.

[0031] 3, the perforation process or the pre-embedded pipe process is used in the direction perpendicular to the protruding structure, the transverse reserved hollow structure is realized, and the pipeline is convenient to pass through.

[0032] 4, floor edge reserved post-cast groove, after arranging connecting steel bars, local pouring of concrete is carried out on site (although there is part of cast-in-situ, since no formwork is needed, and the surrounding precast concrete forms precision control reference, thus grinding can achieve the same high precision as the precast part, at the same time, no waiting for concrete strength can be carried out on the second floor wallboard work);

[0033] 5, after the pipeline is passed on site, self-tapping or shooting nail installation bottom calcium silicate board or gypsum board, forming the bottom flat visual effect. Board seam uses decoration method, hanging net plastering.

[0034] The utility model still has a particularly important advantage, often the precast floor joint, especially the pre-stressed floor joint, generally exists deformation and leads to the wrong table phenomenon. Through the bottom plate of post-mounted can level the wrong table phenomenon. Effectively solve a big pain point of practical engineering.

[0035] Finally, it needs to be explained that the above examples are only used to illustrate the technical solutions of the utility model and not to limit the technical solutions, and those of ordinary skill in the art should understand that those who modify or equivalently replace the technical solutions of the utility model without departing from the purpose and scope of the technical solutions should be covered in the scope of the claims of the utility model.

Claims

1. A fully-precast floor that can be wired through with bidirectional cables, characterized in that, The floor slab body and the bottom plate are provided with a plurality of convex structures and groove structures extending along the span direction of the floor slab body, which are alternately distributed along the direction perpendicular to the span direction of the floor slab body to form a wave-shaped structure on the bottom surface of the floor slab body, and the bottom plate is connected with each convex structure; the inner side of the convex structure close to the bottom plate is embedded with a prestressed steel bar extending along the span direction of the floor slab body, and a through hole is provided on part or all of the convex structures, which is communicated with the groove adjacent to the convex structure.

2. A fully-precast floor that can be wired through the ducts in both directions according to claim 1, characterized in that: A steel mesh is embedded in the floor slab body close to the top surface.

3. A fully-precast floor that can be wired through the ducts in both directions according to claim 1, characterized in that: A corrugated steel plate is provided on the bottom surface of the floor slab body, and the cross-sectional shape of the corrugated steel plate is consistent with the wave-shaped structure formed by the convex structures and the groove structures, so that the corrugated steel plate is fitted with the wave-shaped structure, and the through hole is communicated with the groove structure through the corrugated steel plate.

4. A fully-precast floor that can be wired through the ducts in both directions according to claim 1, characterized in that: The bottom plate is a steel plate or an aluminum plate or a calcium silicate plate or a gypsum plate.

5. A fully-precast floor that can be wired through the ducts in both directions according to claim 1, characterized in that: The cross-sectional shape of the convex structure and the groove structure is isosceles trapezoidal structure.

6. A fully-precast floor that can be wired through the slab in both directions according to claim 1, characterized in that: A plurality of post-cast grooves are provided on at least one side edge of the top surface of the floor slab body, which are spaced apart along the extension direction of the edge, and the post-cast grooves penetrate the top surface and the side surface corresponding to the edge.

7. A fully-precast floor that can be wired through the slab in both directions according to claim 6, characterized in that: The post-cast groove is isosceles trapezoidal, and the width between the two legs gradually increases in the direction close to the edge of the floor slab body.

8. A fully-precast floor that can be wired through the slab in both directions according to claim 6, characterized in that: A connecting steel bar is embedded in the post-cast groove, one end of which is fixed in the post-cast groove, and the other end extends out of the post-cast groove by a distance along the direction parallel to the top surface of the floor slab body.

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