Prefabricated box type building

Abstract

The utility model discloses a prefabricated box type building which comprises a prefabricated floor slab, a prefabricated secondary component, a thin-wall structural layer and a decorative layer. The prefabricated floor slab comprises an upper floor slab and a lower floor slab; the upper floor slab and the lower floor slab are connected into a whole through the prefabricated secondary components, and the multiple prefabricated secondary components are arranged along the edge of the prefabricated floor slab at intervals; the thin-wall structure layer is installed on the prefabricated floor slab and / or the prefabricated secondary component and comprises an inner side structure layer arranged towards the indoor side and an outer side structure layer arranged towards the outdoor side, and the outer side structure layer and the inner side structure layer are detachably connected. The outer side structural layer and the inner side structural layer are arranged at intervals and define a pouring cavity used for pouring wall columns and / or beams. The decorative layer is pre-arranged on one side, far away from the outer side structural layer, of the inner side structural layer and / or one side, far away from the inner side structural layer, of the outer side structural layer. The prefabricated box-type building provided by the utility model has the advantages that the problem of weak stress points formed by connecting nodes is solved, the strength is high, the construction efficiency can be improved, and the construction period is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, and particularly to a prefabricated box-type building. Background Art

[0002] At present, since the assembled prefabricated building can achieve low cost, effectively shorten the building cycle, save materials and labor, it is one of the effective ways to realize industrialized housing and has been gradually put into use. However, in the existing assembled prefabricated building, it is usually necessary to assemble precast columns, precast beams and precast floor slabs at the construction site to form a frame structure, and the mechanical properties of the connection joints will directly affect the overall structural performance.

[0003] In this regard, Chinese invention patent CN116623806A provides a connection structure between a precast beam and a precast floor slab for an assembled building, which optimizes the structure of the connection joint to make its mechanical properties better and the connection more reliable. However, the main load-bearing members such as wall columns and beams still rely on post-embedded bolts for connection in the later stage, resulting in poor integrity of the building and high requirements for construction technology. Secondly, all precast beams and wall columns are processed and formed in the factory, and the transportation and hoisting weights are relatively heavy, which will also increase the construction cost and construction difficulty. Summary of the Utility Model

[0004] The utility model provides a prefabricated box-type building to solve the technical problems of poor integrity, high construction difficulty, and relatively high transportation and assembly costs of the existing prefabricated buildings.

[0005] According to one aspect of the utility model, a prefabricated box-type building is provided, which includes a precast floor slab, precast secondary components, a thin-wall structure layer and a decorative layer;

[0006] The precast floor slab includes an upper floor slab and a lower floor slab arranged at intervals in the vertical direction;

[0007] The precast secondary components are arranged between the upper floor slab and the lower floor slab and connect the upper floor slab and the lower floor slab into a whole, and a plurality of precast secondary components are arranged at intervals along the edge of the precast floor slab;

[0008] The thin-wall structure layer is installed on the precast floor slab and / or the precast secondary components. The thin-wall structure layer includes an inner structure layer arranged towards the indoor side and an outer structure layer arranged towards the outdoor side. The outer structure layer is detachably connected to the inner structure layer, and the outer structure layer and the inner structure layer are arranged at intervals and enclose a casting cavity for casting wall columns and / or beams;

[0009] The decorative layer is preset on one side of the inner structure layer away from the outer structure layer and / or preset on one side of the outer structure layer away from the inner structure layer.

[0010] Preferably, the surface of the inner structural layer and / or the outer structural layer facing the casting cavity is set as a rough surface.

[0011] Preferably, the inner structural layer and / or the outer structural layer includes a fiberboard and a steel mesh disposed on the surface of the fiberboard facing the casting cavity.

[0012] Preferably, hooks for bonding with concrete are provided on the surface of the inner structural layer and / or the outer structural layer facing the casting cavity.

[0013] Preferably, a plurality of connecting struts are arranged between the inner structural layer and the outer structural layer. The connecting struts are used to connect the inner structural layer and the outer structural layer into a whole and limit the distance between the inner structural layer and the outer structural layer.

[0014] Preferably, the thin-walled structural layer includes a first thin-walled structural layer and a second thin-walled structural layer. The first thin-walled structural layer is disposed between adjacent two precast secondary members and encloses a first casting cavity for casting wall columns. The second thin-walled structural layer is disposed at the upper and lower ends of the precast secondary members and encloses a second casting cavity for casting beams.

[0015] Preferably, a wiring groove for pre-embedding water and electricity pipelines is provided in the casting cavity.

[0016] Preferably, the precast box-type building further includes a thermal insulation layer disposed on the surface of the outer structural layer away from the inner structural layer.

[0017] Preferably, installation holes for installing doors and windows are formed in the precast secondary members.

[0018] Preferably, the precast box-type building further includes doors and / or windows adapted to the installation holes.

[0019] The utility model has the following beneficial effects:

[0020] The prefabricated box - type building provided by the utility model connects the upper floor slab and the lower floor slab into a whole through prefabricated secondary components, forming an overall structural framework in advance. There is no need for on - site assembly, and there is no problem of forming a weak stress point at the connection node, effectively reducing the construction difficulty and ensuring the accuracy, strength and stability of the overall structure. And through the thin - wall structure layer as a non - removable formwork to enclose and form a pouring cavity, the main load - bearing structures such as walls, columns and / or beams can be poured at the construction site, ensuring the seismic performance and safety of the building, eliminating the processing, assembly and formwork removal operations of traditional formwork, effectively reducing costs, shortening the construction period, and also reducing the weight of the prefabricated box - type building, making it more convenient for transportation and overall hoisting, which is conducive to realizing a large - space layout. Secondly, because the thin - wall structure layer has a self - contained decorative layer, the decorative layer can specifically be soft decorations such as coatings, tiles, wall cloth, etc. It can be constructed by centralized brushing or sticking through automated machinery, realizing batch - production and high - standard production operations, ensuring the decorative effect. Compared with the method of installing soft decorations at the construction site, it can not only further improve the construction efficiency, shorten the construction period, but also greatly reduce the waste of decorative materials and avoid the generation of construction waste.

[0021] In addition to the purposes, features and advantages described above, the utility model has other purposes, features and advantages. The following will refer to the drawings for a further detailed description of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of this application are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation of the utility model. In the drawings:

[0023] Figure 1 is a schematic structural diagram of the prefabricated box - type building provided by the embodiment of the utility model;

[0024] Figure 2 is Figure 1 a top view of the prefabricated box - type building shown;

[0025] Figure 3 is Figure 2 a sectional view of the prefabricated box - type building shown along the A - A direction;

[0026] Figure 4 is Figure 2 a sectional view of the prefabricated box - type building shown along the B - B direction.

[0027] LEGEND DESCRIPTION:

[0028] 1000, prefabricated box building; 1, prefabricated floor slab; 11, upper floor slab; 12, lower floor slab; 13, main beam; 14, secondary beam; 2, prefabricated secondary component; 3, thin-walled structure layer; 301, first thin-walled structure layer; 302, second thin-walled structure layer; 31, inner structure layer; 32, outer structure layer; 33, hook; 34, connecting strut; 4, decorative layer; 5, door; 6, window. Detailed implementation manners

[0029] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0030] Figures 1 to 4 Collectively shown is a prefabricated box building provided by an embodiment of the present utility model, which has a simple structure, strong integrity, convenient and fast construction, can ensure the accuracy, strength and stability of the overall structure, effectively improve the construction efficiency, and shorten the construction period.

[0031] As Figure 1 shown, the prefabricated box building 1000 includes a prefabricated floor slab 1, a prefabricated secondary component 2, a thin-walled structure layer 3 and a decorative layer 4. The prefabricated floor slab 1 includes an upper floor slab 11 and a lower floor slab 12 that are arranged at intervals in the vertical direction. The prefabricated secondary component 2 is arranged between the upper floor slab 11 and the lower floor slab 12 and connects the upper floor slab 11 and the lower floor slab 12 into a whole. A plurality of prefabricated secondary components 2 are arranged at intervals along the edge of the prefabricated floor slab 1.

[0032] Please refer to Figure 2 and Figure 3 , the thin-walled structure layer 3 is installed on the prefabricated floor slab 1 and / or the prefabricated secondary component 2. The thin-walled structure layer 3 includes an inner structure layer 31 arranged towards the indoor side and an outer structure layer 32 arranged towards the outdoor side. The outer structure layer 32 is detachably connected to the inner structure layer 31. The outer structure layer 32 and the inner structure layer 31 are arranged at intervals and enclose a pouring cavity for pouring walls, columns and / or beams. The decorative layer 4 is preset on one side of the inner structure layer 31 away from the outer structure layer 32 and / or preset on one side of the outer structure layer 32 away from the inner structure layer 31.

[0033] Specifically, the prefabricated box-type building 1000 connects the upper floor 11 and the lower floor 12 into a whole through the prefabricated secondary component 2, forming an overall structural skeleton in advance, without the need for on-site assembly, and there is no problem of forming a weak stress point at the connection node, which effectively reduces the construction difficulty and ensures the accuracy, strength and stability of the overall structure. In addition, the thin-walled structural layer 3 is used as a non-disassembly template to enclose the casting cavity, and the main stress-bearing structures such as walls, columns and / or beams can be cast on the construction site, thereby ensuring the earthquake resistance and safety of the building, eliminating the processing, assembly and demolding operations of traditional templates, effectively reducing costs, shortening the construction period, and reducing the weight of the prefabricated box-type building 1000, making it more convenient to transport and hoist as a whole, which is conducive to realizing large-space layout. Secondly, since the thin-walled structural layer 3 has its own decorative layer 4, the decorative layer 4 can specifically be soft furnishings such as paint, tiles, wall cloth, etc., which can be centrally applied or glued by automated machinery to achieve batch and high-standard production operations to ensure the decorative effect. Compared with the method of installing soft furnishings at the construction site, it can not only further improve the construction efficiency and shorten the construction period, but also greatly reduce the waste of decorative materials and avoid the generation of construction waste.

[0034] In addition, since the outer structural layer 32 is detachably connected to the inner structural layer 31, it is convenient to tie the steel bars in the casting cavity during construction, thereby improving the structural strength of the wall columns and / or beams, and the position and quantity of the tied steel bars can be flexibly adjusted according to construction requirements, adapting to different application scenarios and having strong applicability.

[0035] Preferably, the surface of the inner structural layer 31 and / or the outer structural layer 32 facing the casting cavity is set to be a rough surface, so that the rough surface can be firmly combined with the cast-in-place concrete in the casting cavity, effectively increasing the adhesion and preventing it from falling off.

[0036] Furthermore, the inner structural layer 31 and / or the outer structural layer 32 include a fiberboard and a steel mesh arranged on the side of the fiberboard facing the casting cavity. The fiberboard has the advantages of low cost, uniform material, small difference in longitudinal and transverse strength, and not easy to crack. Insulating material can be added to the fiberboard according to the needs of thermal insulation and energy saving. The steel mesh can be specifically formed by cross-arranged φ4mm steel bars, which can not only effectively improve the structural strength of the fiberboard, but also make the side of the fiberboard facing the casting cavity a rough surface.

[0037] Preferably, on one side of the inner structural layer 31 and / or the outer structural layer 32 facing the casting cavity, there are hooks 33 for bonding with concrete. There are multiple hooks 33, and the multiple hooks 33 are evenly arrayed on the steel mesh and extend into the casting cavity. The hooks 33 are firmly bonded with the cast-in-place concrete in the casting cavity, further enhancing the strength of the inner structural layer 31 and / or the outer structural layer 32, so that the inner structural layer 31 and the outer structural layer 32 can be tightly connected into a whole.

[0038] Preferably, multiple connecting struts 34 are arranged between the inner structural layer 31 and the outer structural layer 32. The connecting struts 34 are used to connect the inner structural layer 31 and the outer structural layer 32 into a whole and limit the distance between the inner structural layer 31 and the outer structural layer 32. By connecting the inner structural layer 31 and the outer structural layer 32 into a whole through the connecting struts 34, the assembly operation between the inner structural layer 31 and the outer structural layer 32 is realized. The length of the connecting struts 34 can be used to accurately control the distance between the inner structural layer 31 and the outer structural layer 32, ensuring that the width of the casting cavity is consistent at different positions, meeting the design requirements, and reducing the manual measurement operation at the construction site.

[0039] Please refer to Figure 3 and Figure 4 , the thin-walled structural layer 3 includes a first thin-walled structural layer 301 and a second thin-walled structural layer 302. The first thin-walled structural layer 301 is arranged between two adjacent precast secondary members 2 and encloses a first casting cavity for casting wall columns. The second thin-walled structural layer 302 is arranged at the upper and lower ends of the precast secondary member 2 and encloses a second casting cavity for casting beams.

[0040] Specifically, both the first thin-walled structural layer 301 and the second thin-walled structural layer 302 include an inner structural layer 31, an outer structural layer 32, hooks 33 and connecting struts 34. The main differences between the two are the installation positions and widths. The first thin-walled structural layer 301 is arranged vertically between two adjacent precast secondary members 2. The first casting cavity enclosed by the first thin-walled structural layer 301 is used to cast wall columns, and the upper floor slab 11 and the lower floor slab 12 are connected into a whole through the wall columns, playing a role in strengthening the support. The second thin-walled structural layer 302 is arranged horizontally at the upper or lower end of the precast secondary member 2. The second casting cavity enclosed by the second thin-walled structural layer 302 is used to cast main beams 13 or secondary beams 14 (shown in Figure 2 ), and the width of the second casting cavity is greater than that of the first casting cavity. The overall structural strength of the precast floor slab 1 is improved through the main beams 13 or secondary beams 14.

[0041] Preferably, a wiring groove (not shown in the figure, the same below) for pre-embedding water and electricity pipelines is provided in the pouring cavity. Presetting the wiring groove in the pouring cavity makes it more convenient to flexibly pre-embed water pipes or electric wires during the construction site, meet different usage requirements, reduce the construction difficulty, and can achieve a hidden design of the water and electricity pipelines after the construction of the prefabricated box-type building 1000, making it more beautiful and generous.

[0042] Preferably, the prefabricated box-type building 1000 further includes a heat-insulating layer (not shown in the figure, the same below) provided on the surface of the outer structural layer 32 away from the inner structural layer 31. By attaching the heat-insulating layer to the outer structural layer 32, the heat insulation effect of the outer structural layer 32 can be improved, blocking the outdoor high temperature in summer and reducing the indoor heat loss in winter, thus enhancing the user experience.

[0043] As Figure 1 shown, preferably, installation holes for installing doors and windows are provided in the prefabricated secondary member 2. By installing doors and windows through the prefabricated secondary member 2, standard-sized installation holes are processed at the factory, which can ensure the installation accuracy of the doors and windows.

[0044] More preferably, the prefabricated box-type building 1000 further includes a door 5 and / or a window 6 adapted to the installation holes, that is, the prefabricated box-type building 1000 comes with doors and windows, which can further reduce the construction procedures and improve the construction efficiency.

[0045] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A prefabricated box-type building, characterized in that: It comprises a prefabricated floor slab (1), a prefabricated secondary component (2), a thin-walled structural layer (3) and a decorative layer (4); The prefabricated floor slab (1) comprises an upper floor slab (11) and a lower floor slab (12) which are arranged at intervals in the vertical direction; The prefabricated secondary component (2) is arranged between the upper floor slab (11) and the lower floor slab (12) and connects the upper floor slab (11) and the lower floor slab (12) into a whole, and a plurality of the prefabricated secondary components (2) are arranged at intervals along the edge of the prefabricated floor slab (1); The thin-walled structural layer (3) is installed on the prefabricated floor slab (1) and / or the prefabricated secondary component (2), the thin-walled structural layer (3) comprises an inner structural layer (31) arranged toward the indoor side and an outer structural layer (32) arranged toward the outdoor side, the outer structural layer (32) is detachably connected to the inner structural layer (31), and the outer structural layer (32) and the inner structural layer (31) are spaced apart and enclose a casting cavity for casting wall columns and / or beams; The decorative layer (4) is preset on a side of the inner structural layer (31) away from the outer structural layer (32) and / or is preset on a side of the outer structural layer (32) away from the inner structural layer (31).

2. The prefabricated container-type building according to claim 1, characterized in that: A surface of the inner structural layer (31) and / or the outer structural layer (32) that faces the casting cavity is set as a rough surface.

3. The prefabricated container-type building according to claim 2, characterized in that: The inner structural layer (31) and / or the outer structural layer (32) comprises a fiberboard and a steel mesh arranged on a side of the fiberboard facing the casting cavity.

4. The prefabricated container-type building according to any one of claims 1 to 3, characterized in that: A hook (33) for combining with concrete is provided on a side of the inner structural layer (31) and / or the outer structural layer (32) facing the casting cavity.

5. The prefabricated container-type building according to claim 1, characterized in that: A plurality of connecting struts (34) are arranged between the inner structural layer (31) and the outer structural layer (32), and the connecting struts (34) are used to connect the inner structural layer (31) and the outer structural layer (32) into a whole and to limit the distance between the inner structural layer (31) and the outer structural layer (32).

6. The prefabricated container-type building according to claim 1, characterized in that: The thin-walled structural layer (3) comprises a first thin-walled structural layer (301) and a second thin-walled structural layer (302); the first thin-walled structural layer (301) is arranged between two adjacent prefabricated secondary components (2) and encloses a first casting cavity for casting wall columns; the second thin-walled structural layer (302) is arranged at the upper and lower ends of the prefabricated secondary components (2) and encloses a second casting cavity for casting beams.

7. The prefabricated container-type building according to claim 1, characterized in that: A wiring trough for pre-buried water and electricity pipelines is provided in the casting cavity.

8. The prefabricated container-type building according to claim 1, characterized in that: The prefabricated box-type building further comprises a heat-insulating layer arranged on a side of the outer structural layer (32) away from the inner structural layer (31).

9. The prefabricated container-type building according to claim 1, characterized in that: The prefabricated secondary component (2) is provided with installation holes for installing doors and windows.

10. The prefabricated container-type building according to claim 9, characterized in that: The prefabricated box-type building also includes a door (5) and / or a window (6) adapted to the installation hole.

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