Prefabricated hollow floor assembly

Abstract

The utility model relates to a prefabricated hollow floor assembly body which comprises a prefabricated bottom die and a plurality of assembly boxes, the prefabricated bottom die comprises a bottom template, and cross beams and longitudinal beams which are positioned on the upper side of the bottom template, the cross beams, the longitudinal beams and the bottom template are of an integrated structure, and the cross beams and the longitudinal beams divide the bottom template into a plurality of assembly areas which are distributed in an array mode. Each assembling area is provided with an assembling box; and the cross beams and the longitudinal beams are lower than the assembly box. The prefabricated hollow floor assembly is novel in structure, reasonable in design and high in practicability, a large number of formwork materials can be saved, supports are saved, the formwork disassembly and assembly workload is reduced, the construction cost is reduced, and the construction speed is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of fabricated building, especially a prefabricated hollow floor assembly. BACKGROUND

[0002] With the rapid development of China's national economy, the application of various special structures in building construction is more and more widely used. In the process of floor construction, the use of hollow floor assembly box can reduce construction cost and improve construction speed. However, more formwork and formwork support are still needed, which consumes a lot of cost and increases the workload of formwork disassembly, affecting the construction progress. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model aims to provide a prefabricated hollow floor assembly to save formwork materials, reduce the workload of formwork disassembly, and improve construction speed.

[0004] The utility model adopts the following scheme: a prefabricated hollow floor assembly, comprising a prefabricated bottom die and a plurality of assembly boxes, the prefabricated bottom die comprises a bottom die plate and transverse beams and longitudinal beams located on the upper side of the bottom die plate, the transverse beams and longitudinal beams and the bottom die plate are an integral structure, the transverse beams and longitudinal beams separate the bottom die plate into a plurality of arrayed assembly areas, and each assembly area is provided with an assembly box; the height of the transverse beams and longitudinal beams is lower than the height of the assembly box.

[0005] Further, the assembly box comprises a prefabricated frame body and a prefabricated top plate covering the prefabricated frame body.

[0006] Further, the prefabricated frame body is enclosed by a glass-magnesium fireproof plate, and an upper socket groove matched with the upper end of the middle frame body is arranged at the edge of the lower side of the top plate.

[0007] Further, a steel reinforcement cage is embedded in the transverse beam and longitudinal beam respectively, the steel reinforcement cage is connected by a main reinforcement and a stirrup, the upper part of the stirrup of the steel reinforcement cage extends from the upper surface of the transverse beam and longitudinal beam, and the main reinforcement of the steel reinforcement cage extends from the end of the transverse beam and longitudinal beam.

[0008] Further, shear grooves are arranged at the two ends of the transverse beam and longitudinal beam, and the shear grooves penetrate the bottom surface of the transverse beam and longitudinal beam.

[0009] Further, L-shaped connecting ribs are arranged at the corresponding positions of the bottom die plate and each assembly area in a spaced distribution manner; shear tooth grooves are arranged at the corresponding positions of the bottom die plate and each assembly area in a spaced distribution manner, the shear tooth grooves penetrate the bottom die plate, and the positions of the shear tooth grooves and the L-shaped connecting ribs are staggered.

[0010] Further, connecting steel reinforcements are arranged in a transverse and longitudinal arrangement manner inside each assembly area of the bottom die plate, the end of the connecting steel reinforcement extends out of the side surface of the bottom die plate and is bent upwards to form the L-shaped connecting rib or extends into the transverse beam or longitudinal beam.

[0011] Further, the assembly area of the bottom template has the same length and width as the middle frame body, and the assembly area of the bottom template is provided with a lower socket groove matched with the lower end of the middle frame body.

[0012] Compared with the prior art, the prefabricated hollow floor assembly structure of the utility model has the following beneficial effects: the prefabricated hollow floor assembly structure of the utility model is novel in structure, reasonable in design, and strong in practicality, can greatly save template materials, save supports, reduce template disassembly and assembly workload, reduce construction cost, and improve construction speed.

[0013] In order to make the purpose, technical scheme and advantages of the utility model more clear and explicit, the following will be further described in detail through specific embodiments and related drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure perspective view of the embodiment of the utility model;

[0015] Figure 2 is the horizontal cross-sectional view of Figure 1 ;

[0016] Figure 3 is the prefabricated bottom mold perspective view of the embodiment of the utility model;

[0017] Figure 4 is the horizontal cross-sectional view of Figure 3 ;

[0018] Mark explanation in the drawing: 100-prefabricated bottom mold, 110-bottom template, 111-assembly area, 112-L-shaped connecting rib, 113-shear tooth groove, 114-connecting steel bar, 115-lower socket groove, 120-cross beam, 130-longitudinal beam, 140-main rib, 150-stirrup, 160-shear groove, 200-assembly box, 210-prefabricated frame body, 220-prefabricated top plate, 221-upper socket groove. DETAILED DESCRIPTION

[0019] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0020] It should be noted that the terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form, and in addition, it should be understood that when the terms "comprise" and / or "include" are used in the specification, they indicate the presence of a feature, step, operation, device, component and / or combination thereof.

[0021] As Figures 1-4 shown in the figure, a prefabricated hollow floor assembly body includes a prefabricated base mold 100 and several assembly boxes 200, the assembly boxes can be 4, 6 or 8, the prefabricated base mold 100 includes a base mold plate 110 and a cross beam 120 and a longitudinal beam 130 located on the upper side of the base mold plate, the cross beam 120 and the longitudinal beam 130 are an integral structure with the base mold plate 110, the cross beam 120 and the longitudinal beam 130 separate the base mold plate into several arrayed assembly areas 111, each assembly area is provided with an assembly box 200; the height of the cross beam and the longitudinal beam is lower than the height of the assembly box. The prefabricated base mold 100 and the assembly box 200 of the prefabricated hollow floor assembly body are prefabricated in the factory, and then assembled on site; the prefabricated hollow floor assembly body integrates several assembly boxes, and forms a beam-slab integrated floor with the post-poured rib beam; only the formwork needs to be installed at the position of the post-poured rib beam on the construction site, and the bottom of the prefabricated hollow floor assembly body does not need formwork and can be directly supported by the formwork; thus, a large amount of formwork material can be saved, the support can be saved, the formwork disassembly and assembly workload can be reduced, the construction cost can be reduced, and the construction speed can be improved.

[0022] In addition, the prefabricated hollow floor assembly body is pre-poured with a cross beam 120 and a longitudinal beam 130 with a height of about half, and the other half is poured on site, which can not only improve the overall strength, but also reduce the construction amount of the post-poured rib beam on site.

[0023] In the embodiment, the assembly box 200 includes a prefabricated frame body 210 and a prefabricated top plate 220 covering the prefabricated frame body; the prefabricated frame body 210 and the prefabricated top plate 220 are also transported to the site for assembly.

[0024] In the embodiment, the prefabricated frame body 210 is enclosed by glass magnesium fireproof plates, and the connection between the adjacent two glass magnesium fireproof plates of the prefabricated frame body 210 adopts rectangular wooden strips fixed at the corner parts of the two glass magnesium fireproof plates.

[0025] In the embodiment, the top plate is provided with an upper socket groove 221 matched with the upper end of the middle frame body at the lower side edge of the top plate. The inside of the top plate is further provided with a steel mesh.

[0026] The upper side edge of each assembly area of the base mold plate and the lower side edge of the top plate are both provided with a protruding H-shaped haunch plate, and a cross rib plate is arranged in the middle of the lower side of the top plate. Round steel bars are arranged in the H-shaped haunch plate and the cross rib plate.

[0027] In the embodiment, the cross beam and the longitudinal beam are respectively embedded with a steel cage, the steel cage is connected by a main reinforcement 140 and a stirrup 150, the upper part of the stirrup 150 of the steel cage extends from the upper surface of the cross beam and the longitudinal beam, and the main reinforcement 140 of the steel cage extends from the end of the cross beam and the longitudinal beam.

[0028] In the embodiment, the cross beams and the longitudinal beams are provided with shear grooves 160 at both ends, the shear grooves 160 penetrate the bottom surface of the cross beams and the longitudinal beams, the concrete of the post-cast ribbed beam enters the shear grooves, and the reliability of the connection between the cross beams and the longitudinal beams and the post-cast ribbed beam is improved.

[0029] In the embodiment, the bottom formwork 110 is provided with L-shaped connecting ribs 112 distributed at intervals at the corresponding positions of each assembly area on the side surface; the bottom formwork is provided with shear tooth grooves 113 distributed at intervals at the corresponding positions of each assembly area on the side surface, the shear tooth grooves penetrate the bottom formwork, the positions of the shear tooth grooves and the L-shaped connecting ribs are staggered, the concrete of the post-cast ribbed beam enters the shear tooth grooves 113, and the L-shaped connecting ribs extend into the post-cast ribbed beam, so that the integrity of the connection with the post-cast ribbed beam is improved.

[0030] In the embodiment, the bottom formwork is provided with connecting steels 114 arranged in the transverse and longitudinal directions inside each assembly area, the end portions of the connecting steels extend out of the side surface of the bottom formwork and are bent upwards to form the L-shaped connecting ribs or extend into the cross beams or the longitudinal beams, if the end portions of the connecting steels are directed towards the cross beams or the longitudinal beams, the end portions extend into the cross beams or the longitudinal beams, and if the end portions of the connecting steels are directed towards the outside of the bottom formwork, the end portions extend outwards and are bent into the L-shaped connecting ribs.

[0031] In the embodiment, the length and width dimensions of the assembly area of the bottom formwork and the length and width dimensions of the middle frame body are consistent, and are both 1m*1m; the height of the cross beams 120 and the longitudinal beams 130 is about 20cm lower than the height of the assembly box. The bottom formwork is provided with a lower socket groove 115 at the edge of the assembly area, which cooperates with the lower end of the middle frame body.

[0032] Any of the technical solutions disclosed in the utility model, if not otherwise stated, if it discloses a numerical range, then the disclosed numerical range is a preferred numerical range, and any person skilled in the art should understand that the preferred numerical range is only one of the many implementable numbers with more obvious technical effects or representative numbers. Since there are many numbers, it is impossible to enumerate them all, therefore, the utility model only discloses part of the numbers to illustrate the technical solutions of the utility model, and the enumerated numbers should not constitute a limitation on the protection scope of the utility model.

[0033] If the utility model discloses or involves mutually fixed and connected parts or structural members, then, except otherwise stated, the fixed and connected can be understood as being fixed and connected in a detachable manner (for example, connected by using bolts or screws), or being fixed and connected in a non-detachable manner (for example, riveted or welded), of course, the mutually fixed and connected can also be replaced by an integral structure (for example, manufactured by using a casting process to form integrally), except obviously cannot use an integral forming process.

[0034] In addition, the terms used to represent the positional relationship or shape in any of the technical solutions of the present application have the meaning including the approximate, similar or close state or shape unless otherwise stated.

[0035] Any component of the present application can be assembled from multiple individual components, or it can be a single component manufactured by an integrated forming process.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments. However, any simple modification, equivalent change and modification made to the above embodiments without departing from the technical solution of the present application, according to the technical essence of the present application, still belongs to the protection scope of the technical solution of the present application.

Claims

1. A prefabricated hollow floor assembly, characterized in that: The application relates to a prefabricated bottom mould and several assembly boxes, wherein the prefabricated bottom mould comprises a bottom mould plate and transverse beams and longitudinal beams on the upper side of the bottom mould plate, the transverse beams and longitudinal beams are integrated with the bottom mould plate, the transverse beams and longitudinal beams separate the bottom mould plate into several arrayed assembly areas, and each assembly area is provided with an assembly box; and the height of the transverse beams and longitudinal beams is lower than the height of the assembly box.

2. Prefabricated hollow floor assembly according to claim 1, characterized in that: The assembly box comprises a prefabricated frame body and a prefabricated top plate covering the prefabricated frame body.

3. Prefabricated hollow floor assembly according to claim 2, characterized in that: The prefabricated frame body is enclosed by glass magnesium fireproof plates, and upper socket grooves matched with the upper ends of the middle frame bodies are arranged at the side edges of the lower side of the top plate.

4. The precast hollow floor assembly of claim 1, wherein: Steel reinforcement cages are respectively embedded in the transverse beams and longitudinal beams, the steel reinforcement cages are connected by main reinforcement and stirrups, the upper portions of the stirrups of the steel reinforcement cages are extended from the upper surfaces of the transverse beams and longitudinal beams, and the main reinforcement of the steel reinforcement cages is extended from the ends of the transverse beams and longitudinal beams.

5. The precast hollow floor assembly of claim 1, wherein: Shear grooves are arranged at the two ends of the transverse beams and longitudinal beams, and the shear grooves penetrate the bottom surfaces of the transverse beams and longitudinal beams.

6. The precast hollow floor assembly of claim 1, wherein: L-shaped connecting ribs are arranged at the corresponding positions of each assembly area on the peripheral side of the bottom mould plate; shear tooth grooves are arranged at the corresponding positions of each assembly area on the peripheral side of the bottom mould plate, the shear tooth grooves penetrate the bottom mould plate, and the positions of the shear tooth grooves and the L-shaped connecting ribs are staggered.

7. The precast hollow floor deck assembly according to claim 6, wherein: Connecting reinforcement is arranged in the transverse and longitudinal directions in each assembly area of the bottom mould plate, the ends of the connecting reinforcement are extended out of the side of the bottom mould plate and are bent upwards to form the L-shaped connecting ribs or are extended into the transverse beams or longitudinal beams.

8. The precast hollow floor deck assembly according to claim 1, wherein: The length and width dimensions of the assembly areas of the bottom mould plate are consistent with the length and width dimensions of the middle frame bodies; and lower socket grooves matched with the lower ends of the middle frame bodies are arranged at the assembly area edges of the bottom mould plate.

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