Steel skeleton lightweight concrete prefabricated slab and fabricated building

Abstract

The utility model provides a steel skeleton lightweight concrete precast slab and fabricated building, the steel skeleton lightweight concrete precast slab comprises an outer frame, an inner skeleton, a lightweight concrete structure layer and a surface layer, the outer frame is annular, the lightweight concrete structure layer is arranged in the outer frame, the inner skeleton is pre-embedded in the lightweight concrete structure layer, the inner skeleton is connected with the outer frame, and the surface layer is embedded in the lightweight concrete structure layer. And the surface layer is arranged on one side of the lightweight concrete structure layer. The inner framework is arranged in the outer frame and connected with the outer frame into a whole, and the inner framework is embedded in the lightweight concrete structure layer, so that the anti-seismic, anti-shearing and anti-compression structural strength of the precast slab can be effectively improved. The lightweight concrete structure layer is obtained by pouring ceramsite concrete lightweight materials, the overall mass is lighter, hoisting and mounting are convenient, and convenience can be provided for construction. The fabricated building is built by adopting the steel skeleton lightweight concrete prefabricated slabs, so that the construction cost is reduced, the construction period is shortened, the technology is simple, the construction environment requirement is low, and the anti-seismic property is excellent.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fabricated building, concretely relates to a steel skeleton light weight concrete prefabricated slab and fabricated building. BACKGROUND

[0002] Fabricated building refers to the building which is formed by transporting the prefabricated components and accessories to the construction site and assembling and installing on site through reliable connection mode. Compared with the traditional cast-in-situ construction, the fabricated building does not need a large amount of manpower and material resources, most of the building components and members are completed in the production workshop, which reduces the loss of building materials and the generation of construction waste, reduces the carbon emission in the whole building life cycle, is the most suitable construction method for the concept of carbon neutralization, and meets the national green development and sustainable development concept, which is an important development direction of the state in the field of building.

[0003] Fabricated building is a concrete building which is formed by prefabricated components as the main force component. Fabricated process is beneficial to the development of building industrialization, improves production efficiency, saves energy, and is more in line with the requirements of green construction such as land saving, energy saving, material saving, water saving and environmental protection, and is beneficial to improving and guaranteeing the quality of building engineering, which is one of the important directions of the development of current building industry. The prefabricated slab used in the existing fabricated building is mostly made of ordinary concrete pouring, which has the problems of heavy weight, poor seismic resistance, construction convenience and the like. UTILITY MODEL CONTENT

[0004] The utility model provides a kind of steel skeleton light weight concrete prefabricated slab and fabricated building, to solve the problem of poor seismic resistance, construction convenience of prefabricated slab of fabricated building in prior art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] In the first aspect, the utility model provides a kind of steel skeleton light weight concrete prefabricated slab, including outer frame, inner skeleton, light weight concrete structure layer and surface layer, the outer frame is annular, the light weight concrete structure layer is arranged in the outer frame, the inner skeleton is embedded in the light weight concrete structure layer, the inner skeleton is connected with the outer frame, and the surface layer is arranged on one side of the light weight concrete structure layer.

[0007] In a possible implementation mode, the steel skeleton light weight concrete prefabricated slab further includes steel wire mesh, the steel wire mesh is arranged on one side of the inner skeleton, the steel wire mesh is connected with the outer frame and the inner skeleton respectively, and the steel wire mesh is embedded in the light weight concrete structure layer.

[0008] In a possible implementation mode, the two sides of the inner skeleton are respectively provided with the steel wire mesh.

[0009] In a possible implementation, the outer frame is a square member formed by hollow tubes and channel steels, and specifically can include two hollow tubes and two channel steels, the hollow tubes are vertically arranged, and the two hollow tubes are arranged in a horizontal direction with a spacing, and the two channel steels are connected to upper ends and lower ends of the two hollow tubes respectively.

[0010] In a possible implementation, the outer frame is a square member formed by a plurality of channel steels.

[0011] In a possible implementation, the inner framework includes at least one horizontal rod and at least one vertical rod, the horizontal rod and the vertical rod are arranged in a cross manner, and ends of the horizontal rod and the vertical rod are connected to the outer frame.

[0012] In a possible implementation, the surface layer is a high-strength polymer thermal insulation composite board, the high-strength polymer thermal insulation composite board has a thermal insulation layer and a fireproof layer, the thermal insulation layer is connected to the lightweight concrete structural layer, and the fireproof layer is arranged on a side of the thermal insulation layer away from the lightweight concrete structural layer.

[0013] In a possible implementation, the surface layer further includes a pre-buried connecting piece, the pre-buried connecting piece penetrates through the surface layer and extends into the lightweight concrete structural layer.

[0014] In a possible implementation, the outer frame is provided with a mounting hole.

[0015] In a possible implementation, the surface layer is further provided with a mesh cloth on a side of the surface layer away from the lightweight concrete structural layer.

[0016] Compared with the prior art, the steel framework lightweight concrete prefabricated board has the following beneficial effects:

[0017] The steel framework lightweight concrete prefabricated board includes an outer frame, an inner framework, a lightweight concrete structural layer and a surface layer, the inner framework is arranged in the outer frame and connected to the outer frame as a whole, the inner framework is pre-buried in the lightweight concrete structural layer, and the prefabricated board has improved structural strength in terms of anti-seismic, anti-shearing and anti-compression.

[0018] In a second aspect, the utility model provides a kind of fabricated building, including the steel skeleton light concrete prefabricated slab of any of the above implementation ways described, and prefabricated floor, the steel skeleton light concrete prefabricated slab is used to form the wall of the fabricated building, the prefabricated floor is located above the steel skeleton light concrete prefabricated slab, for forming the roof of the fabricated building, fabricated building has same technical effect with the above steel skeleton light concrete prefabricated slab, not repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is structural schematic view of steel skeleton light concrete prefabricated slab that outer frame is formed by two channel steel encloses;

[0020] Figure 2 It is schematic view of explosion for steel skeleton light concrete prefabricated slab provided by the utility model;

[0021] Figure 3 It is schematic view of explosion for outer frame, inner skeleton and steel wire net in the utility model;

[0022] Figure 4 It is structural schematic view for outer frame, inner skeleton and steel wire net in the utility model;

[0023] Figure 5 It is structural schematic view of steel skeleton light concrete prefabricated slab that outer frame is formed by four channel steel encloses;

[0024] Figure 6 It is structural schematic view of steel skeleton light concrete prefabricated slab that outer frame is formed by three channel steel encloses;

[0025] Figure 7 It is structural schematic view of prefabricated floor;

[0026] Figure 8 It is structural schematic view of fabricated building;

[0027] Figure 9 It is structural schematic view of fabricated building overall outer frame.

[0028] REFERENCE SIGNS:

[0029] 10, outer frame;11, hollow pipe;12, channel steel;13, mounting hole;20, inner skeleton;21, cross bar;22, vertical rod;30, surface layer;31, thermal insulation layer;32, fireproof layer;33, pre-embedded connecting piece;40, steel wire net. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model will be described in further detail below in combination with the drawings and examples.

[0031] Please refer to Figures 1 to 9 The steel skeleton lightweight concrete prefabricated slab and the fabricated building provided by the utility model embodiment will be described below.

[0032] Please refer to Figures 1 to 7 The utility model embodiment provides a kind of steel skeleton lightweight concrete prefabricated slab, including outer frame 10, inner skeleton 20, lightweight concrete structure layer and surface layer 30, outer frame 10 is annular, lightweight concrete structure layer is located in outer frame 10, inner skeleton 20 is embedded in lightweight concrete structure layer, inner skeleton 20 is connected with outer frame 10, surface layer 30 is located in one side of lightweight concrete structure layer.

[0033] Compared with prior art, the beneficial effects of the steel skeleton lightweight concrete prefabricated slab provided by the utility model embodiment are: the steel skeleton lightweight concrete prefabricated slab provided by the utility model embodiment includes outer frame 10, inner skeleton 20, lightweight concrete structure layer and surface layer 30, inner skeleton 20 is arranged in outer frame 10 and is connected as a whole with outer frame 10, inner skeleton 20 is embedded in lightweight concrete structure layer, can effectively improve the anti-seismic, shearing, compression structure strength of prefabricated slab.Lightweight concrete structure layer is obtained by pouring with ceramsite concrete lightweight material, and the overall quality is lighter, which is convenient for lifting and installation, and can provide convenience for construction.

[0034] In the utility model embodiment, outer frame 10 is obtained by welding square tube, channel steel 12, U-shaped channel steel, I-beam and H-shaped steel, and can be used to manufacture building outer wall, inner wall and floor slab.Outer frame 10 is usually a closed square component, and of course can be made into circular, sector or other shape according to the shape of building.

[0035] Inner skeleton 20 is obtained by assembling and welding I-beam, H-shaped steel, channel steel 12, U-shaped channel steel, straight steel, steel bar or reinforcing steel, and is used to form internal support of prefabricated slab to improve the shearing and bending performance of prefabricated slab.Edge of inner skeleton 20 is welded as a whole with outer frame 10, and then lightweight concrete is poured into outer frame 10, and the lightweight concrete can be ceramsite concrete.It can be understood that according to needs, holes for installing doors and windows need to be reserved on prefabricated slab, and the holes can be formed by separating inner skeleton 20.

[0036] The surface layer 30 can be a high-strength polymer thermal insulation composite board, which is an existing product. The high-strength polymer thermal insulation composite board is arranged on one side of the lightweight concrete structure layer and plays a role of fireproofing, thermal insulation, and decoration. The surface layer 30 is integrally connected with the lightweight concrete structure layer. During production and manufacturing, the surface layer 30 is first placed on the ground, the outer frame 10 and the inner framework 20 are placed on the surface layer 30, and then the lightweight concrete is poured to connect the surface layer 30 and the lightweight concrete structure layer into one whole.

[0037] The lightweight concrete used in this embodiment is specifically a ceramsite concrete, also known as lightweight aggregate concrete. Generally, artificial ceramsite or natural lightweight aggregate is used as a coarse aggregate of concrete to replace stones in ordinary concrete, and fine aggregate is lightweight sand or ordinary sand, which is further supplemented with cement, water, and additives, etc. The ceramsite concrete is configured according to a certain proportion according to design requirements. The ceramsite has a small density and a large specific surface area, and is not prone to deformation or cracking. In addition, the porous structure of the ceramsite makes the ceramsite have excellent thermal insulation, heat insulation, and sound insulation performance. Therefore, the ceramsite concrete prepared by using the ceramsite has good thermal insulation performance, durability, and crack resistance. It can be understood that the lightweight concrete structure layer is not shown in the figure in order to facilitate the display of the structure of the inner framework.

[0038] Please refer to Figure 1 , Figure 3 and Figure 4 In some possible embodiments, in order to further improve the anti-seismic, anti-compressive, anti-bending, and anti-shearing performance of the prefabricated board, the steel framework lightweight concrete prefabricated board further includes a steel mesh 40 arranged on one side of the inner framework 20. The steel mesh 40 is connected with the outer frame 10 and the inner framework 20 respectively, and the steel mesh 40 is pre-embedded in the lightweight concrete structure layer.

[0039] The grid spacing and steel wire diameter of the steel mesh 40 are not specifically limited, and the user can select them according to needs. Please refer to Figure 3 In some possible embodiments, the steel mesh 40 is arranged on both sides of the inner framework 20, and the steel mesh 40, the inner framework 20, and the frame are welded to be integrated. During pouring, the steel mesh 40 and the inner framework 20 are pre-embedded in the lightweight concrete structure layer.

[0040] Please refer to Figure 1 , Figure 3 and Figure 4 In some possible embodiments, the outer frame 10 is obtained by welding the channel steel 12 and the hollow pipe 11, such as Figure 1 , Figure 5 , Figure 6 and Figure 7The outer frame 10 can include one, two, three or four channel steel 12. When the hollow tube 11 is provided, the hollow tube 11 is vertically arranged, when the hollow tube 11 has two, the two hollow tubes 11 are arranged in a horizontal direction, and the two channel steels 12 are respectively connected to the upper end and the lower end of the two hollow tubes 11, and the two hollow tubes 11 and the two channel steels 12 form a square frame, and the hollow tube 11 and the channel steel 12 are connected in one body by welding.

[0041] The hollow tube 11 can be directly made of a steel tube with a suitable specification, and the cross section thereof can be circular, square or other shapes.

[0042] Please refer to Figure 1 , Figure 3 and Figure 4 In some possible embodiments, the hollow tube 11 is a hollow tubular member, and concrete can be poured into the hollow tube 11, which can further improve the compressive and shear structural strength of the hollow tube 11 and improve the overall seismic performance of the building. When used in prefabricated buildings, when the building has multiple floors, the hollow tubes 11 of the upper and lower prefabricated plates can be connected in a vertical direction, and by pouring concrete into the interior thereof, after the concrete is solidified, the hollow tubes 11 of the upper and lower prefabricated plates can form an integrated structure, which helps to improve the seismic capacity of the overall building.

[0043] Please refer to Figure 3 In some possible embodiments, the inner framework 20 includes at least one horizontal rod 21 and at least one vertical rod 22, the horizontal rod 21 and the vertical rod 22 are arranged in a cross manner, the ends of the horizontal rod 21 and the vertical rod 22 are connected to the outer frame 10, and the horizontal rod 21 and the vertical rod 22 are combined to form a net-shaped inner framework 20.

[0044] Please refer to Figure 2 In some possible embodiments, the surface layer 30 includes a thermal insulation layer 31 and a fireproof layer 32, the thermal insulation layer 31 is connected to the lightweight concrete structural layer, and the fireproof layer 32 is arranged on the side of the thermal insulation layer 31 away from the lightweight concrete structural layer. The thickness of the thermal insulation layer 31 and the fireproof layer 32 is not specifically limited, and the user can select and set it according to the actual situation. When used to make an inner wall, the thermal insulation layer 31 and the fireproof layer 32 can not be provided, and the surface layer 30 can only have a plaster layer for decoration.

[0045] Please refer to Figure 2 In some possible embodiments, the surface layer 30 further includes a pre-buried connecting piece 33, the pre-buried connecting piece 33 penetrates through the surface layer 30 and extends into the lightweight concrete structural layer, so as to improve the connecting strength of the surface layer 30 and the lightweight concrete structural layer.

[0046] Please refer to Figure 1In some possible embodiments, the outer frame 10 is provided with mounting holes 13, and the mounting holes 13 are used to pass through connecting members such as bolts, so as to facilitate the connection and fixation of the plurality of prefabricated plates during splicing.

[0047] In some possible embodiments, the surface layer 30 comprises a mesh cloth, and the mesh cloth is arranged on a side away from the lightweight concrete structure layer, and the mesh cloth can be a glass fiber mesh cloth in particular.

[0048] Please refer to Figure 7 and Figure 8 and Figure 9 In a second aspect, the embodiments of the utility model provide a prefabricated building, which comprises the steel skeleton lightweight concrete prefabricated plate provided in any of the above embodiments, and a prefabricated floor slab, the steel skeleton lightweight concrete prefabricated plate can be used for the inner wall and the outer wall of the prefabricated building, and the steel skeleton lightweight concrete prefabricated plate can be provided with a mounting space of a door and a window as required. The prefabricated floor slab is arranged above the steel skeleton lightweight concrete prefabricated plate and is used for forming a roof of the prefabricated building. The pouring thickness of the lightweight concrete structure layer can be set as required, and when the prefabricated plate is applied to the inner wall of the building, the thermal insulation layer can not be arranged.

[0049] As shown in Figure 7 , Figure 9 indicates that the prefabricated floor slab is provided with hollow pipes at four corners, the hollow pipes of the prefabricated floor slab and the hollow pipes of the prefabricated wall are aligned in the up-down direction, the prefabricated floor slab and the hollow pipes of the prefabricated wall are integrally connected by pouring concrete into the interior, and the overall structural strength is higher.

[0050] The prefabricated building provided in the embodiments is built by using the steel skeleton lightweight concrete prefabricated plate, a large amount of on-site operation work in a traditional construction mode is transferred to a factory, the prefabricated plate for the building is processed and manufactured in the factory, is transported to a construction site, and is assembled and installed on site by using a reliable connection mode, which helps to reduce construction cost, save construction period, has simple technology, has low construction environment requirement, can be well adapted to construction under adverse geological conditions, and has excellent anti-seismic performance.

[0051] The steel skeleton lightweight concrete prefabricated plate provided in the embodiments is processed and manufactured in a prefabrication factory or a construction site, can improve factoryization and mechanization construction degree, reduces on-site operation, can realize plaster-free, reduces quality common problem problems such as hollowing and cracking, saves on-site labor, has small restriction on climate conditions, saves labor, shortens the construction period of the building, and improves the construction quality.

[0052] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and the like, should be interpreted broadly, for example, can be connected, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as understood by those skilled in the art to which the present application belongs.

[0053] In the present application, unless specifically defined and limited otherwise, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0054] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application.

[0055] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

[0056] It can be understood that the parts in the above embodiments can be freely combined or deleted to form different combined embodiments, and the specific content of each combined embodiment will not be described here. After the description, it can be considered that the present application specification has recorded each combined embodiment, and different combined embodiments can be supported.

[0057] The above merely describes preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steel-framed lightweight concrete precast slab, characterized by, The steel skeleton lightweight concrete prefabricated board comprises an outer frame (10), an inner skeleton (20), a lightweight concrete structure layer and a surface layer (30), the outer frame (10) is annular, the lightweight concrete structure layer is arranged in the outer frame (10), the inner skeleton (20) is embedded in the lightweight concrete structure layer, the inner skeleton (20) is connected with the outer frame (10), and the surface layer (30) is arranged on one side of the lightweight concrete structure layer.

2. The steel-reinforced lightweight concrete precast slab according to claim 1, characterized in that, The steel skeleton lightweight concrete prefabricated board further comprises a steel wire mesh (40), the steel wire mesh (40) is arranged on one side of the inner skeleton (20), the steel wire mesh (40) is connected with the outer frame (10) and the inner skeleton (20) respectively, and the steel wire mesh (40) is embedded in the lightweight concrete structure layer.

3. The steel-reinforced lightweight concrete precast slab according to claim 2, characterized in that, The inner skeleton (20) is provided with the steel wire mesh (40) on two sides respectively.

4. The steel-reinforced lightweight concrete precast slab according to claim 1, characterized in that, The outer frame (10) is formed by surrounding hollow pipes (11) and channel steels (12).

5. The steel-reinforced lightweight concrete precast slab of claim 1, wherein, The outer frame (10) is formed by surrounding channel steels (12).

6. The steel-framed lightweight concrete precast slab according to claim 1, characterized in that, The inner skeleton (20) comprises at least one horizontal rod (21) and at least one vertical rod (22), the horizontal rod (21) and the vertical rod (22) are arranged in cross, and end portions of the horizontal rod (21) and the vertical rod (22) are connected with the outer frame (10).

7. The steel reinforced lightweight concrete precast slab as claimed in claim 1, wherein, The surface layer (30) is a high-strength polymer thermal insulation composite board, the high-strength polymer thermal insulation composite board has a thermal insulation layer (31) and a fireproof layer (32), the thermal insulation layer (31) is connected with the lightweight concrete structure layer, and the fireproof layer (32) is arranged on a side, away from the lightweight concrete structure layer, of the thermal insulation layer (31).

8. The steel-framed lightweight concrete precast slab according to claim 1, characterized in that, The surface layer (30) further comprises an embedded connecting piece (33), the embedded connecting piece (33) penetrates through the surface layer (30) and extends into the lightweight concrete structure layer.

9. The steel-framed lightweight concrete precast slab according to claim 1, characterized in that, The surface layer (30) is further provided with a mesh cloth on a side, away from the lightweight concrete structure layer.

10. A building of assembled parts, characterized in that, The steel skeleton lightweight concrete prefabricated board comprises an outer frame (10), an inner skeleton (20), a lightweight concrete structure layer and a surface layer (30), the outer frame (10) is annular, the lightweight concrete structure layer is arranged in the outer frame (10), the inner skeleton (20) is embedded in the lightweight concrete structure layer, the inner skeleton (20) is connected with the outer frame (10), and the surface layer (30) is arranged on one side of the lightweight concrete structure layer.

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