Bottom plate structure of concrete module unit and concrete module unit

Abstract

The utility model relates to a bottom plate structure of a concrete module unit and the concrete module unit, and the bottom plate structure comprises a concrete base plate; the concrete base plate comprises a concrete plate body and a plurality of special-shaped reinforcing ribs which are embedded in the concrete plate body and arranged at intervals, and the special-shaped reinforcing ribs extend in the span direction of the concrete base plate. A functional layer is prefabricated on the upper surface and / or the lower surface of the concrete slab body; when the functional layer is prefabricated on the lower surface of the concrete slab body, the special-shaped reinforcing ribs extend into the functional layer, and the lower surfaces of the special-shaped reinforcing ribs are flush with or higher than the lower surface of the functional layer; when the lower surface of the concrete plate body is the lower surface of the bottom plate structure, the lower surfaces of the special-shaped reinforcing ribs are flush with or higher than the lower surface of the concrete plate body. The bottom plate structure has the beneficial effects that the thickness of the bottom plate can be effectively reduced, the construction time of a construction site is shortened, and the integration degree of a module is improved.

Description

Technical Field

[0001] This utility model relates to the field of modular concrete building technology, and in particular to a base plate structure and a concrete module unit. Background Technology

[0002] Modular concrete integrated buildings use standard modules as basic units. The main body of the module is manufactured in the factory, along with the installation of bathroom fixtures, electromechanical pipelines, and integrated decoration and finishing. On-site, only the modules are assembled and the pipelines between the module units are connected. This is a new type of rapid construction method with advantages such as high degree of prefabrication integration, fast construction efficiency, and high construction quality.

[0003] Currently, to meet the heating, insulation, and soundproofing requirements of modular integrated concrete buildings, further construction is typically carried out on the base slab of the concrete module unit, resulting in a superposition of the base slab and the subsequent construction layer. For example, underfloor heating systems are currently divided into two types: wet underfloor heating and dry underfloor heating. Wet underfloor heating consists of a slope-forming layer, an insulation layer, a filling layer, and a finishing layer, with the wet underfloor heating layer occupying a height of approximately 100-120mm. Dry underfloor heating consists of a leveling layer, underfloor heating trench insulation board modules, a heat equalization layer, and a finishing layer, with the dry underfloor heating layer occupying a height of approximately 70-80mm. Both of these underfloor heating installation methods involve secondary construction on the base slab of the module unit. This presents the following problems: secondary construction prolongs the overall building construction time; the superposition of the floor and the subsequent construction layer reduces the usable net height within the concrete module unit, reducing indoor space; and the subsequent construction layer increases the weight of the module unit, affecting the overall structural performance of the building. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a base plate structure for a concrete module unit and a concrete module unit, which solves the technical problems of the existing concrete module unit base plate requiring further construction to meet the needs of heating, heat preservation and sound insulation, resulting in an increase in the construction period of the entire building, and the excessive thickness of the concrete module unit base plate after construction.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] In a first aspect, an embodiment of the present utility model provides a bottom plate structure of a concrete module unit, including a concrete base plate; the concrete base plate includes a concrete plate body, and a plurality of spaced-apart special-shaped reinforcing ribs embedded in the concrete plate body, the special-shaped reinforcing ribs extending along the span direction of the concrete base plate; a functional layer is precast on the upper surface and / or the lower surface of the concrete plate body; when the functional layer is precast on the lower surface of the concrete plate body, the special-shaped reinforcing ribs extend into the functional layer, and the lower surface of the special-shaped reinforcing ribs is flush with or higher than the lower surface of the functional layer; when the lower surface of the concrete plate body is the lower surface of the bottom plate structure, the lower surface of the special-shaped reinforcing ribs is flush with or higher than the lower surface of the concrete plate body.

[0009] Optionally, for the bottom plate structure of the concrete module unit, the cross-section of the special-shaped reinforcing rib is in the shape of a U, I, king-shaped, or Z; the special-shaped reinforcing rib is oriented in the upright direction of its cross-sectional shape, and at least the top of the special-shaped reinforcing rib is embedded in the concrete plate body; the concrete plate body is formed by casting one or more of expanded perlite concrete, ceramsite concrete, foam concrete, and ordinary concrete.

[0010] Optionally, for the bottom plate structure of the concrete module unit, a plurality of threaded steel bar segments are arranged at intervals along the span direction of the concrete base plate on the top of the special-shaped reinforcing rib, the threaded steel bar segments horizontally pass through the top of the special-shaped reinforcing rib, and the threaded steel bar segments are perpendicular to the span direction of the concrete base plate; the threaded steel bar segments are embedded in the concrete plate body.

[0011] Optionally, for the bottom plate structure of the concrete module unit, the concrete base plate further includes a plurality of steel mesh sheets, the steel mesh sheets are laid in the concrete plate body, and the edges of the steel mesh sheets are welded to the adjacent threaded steel bar segments in the concrete plate body.

[0012] Optionally, for the bottom plate structure of the concrete module unit, it further includes a surface layer; the functional layer includes a heating layer located on the upper surface of the concrete plate body, the heating layer includes floor heating pipelines; a pipe groove is provided on the upper surface of the concrete plate body, and the floor heating pipelines are laid in the pipe groove; the surface layer is laid on the upper surface of the concrete plate body.

[0013] Optionally, for the bottom plate structure of the concrete module unit, the heating layer further includes a heat spreader plate, and the heat spreader plate is laid between the surface layer and the concrete plate body.

[0014] Optionally, in the base plate structure of the concrete module unit, the functional layer further includes an insulation layer composed of multiple insulation boards spliced ​​together, the insulation layer being disposed on the lower surface of the concrete slab; the lower flange of the irregular reinforcing rib extends out of the lower surface of the concrete slab by a first specified distance; the edge of the insulation board located in the middle of the insulation layer extends between the lower flange of the irregular reinforcing rib and the lower surface of the concrete slab; the first specified distance is the thickness of the insulation board.

[0015] Optionally, the base plate structure of the concrete module unit further includes angle steel disposed around the concrete slab; the upper part of the first flange of the angle steel is attached to the outer edge of the concrete slab, and the second flange is located below the concrete slab at a second specified distance from the lower surface of the concrete slab; the angle steel is cast and connected to the concrete slab by studs or threaded steel bars disposed on the angle steel; the edge of the insulation board located at the outer edge of the insulation layer extends between the second flange of the angle steel and the lower surface of the concrete slab; the second specified distance is the thickness of the insulation board.

[0016] Optionally, in the base plate structure of the concrete module unit, the thickness of the concrete slab is 50-60mm; the thickness of the functional layer is 15-40mm; and the thickness of the base plate structure is 80-100mm.

[0017] Secondly, this utility model embodiment provides a base plate structure for the concrete module unit, as well as side walls and a top plate; the side walls are arranged around the base plate structure above the base plate structure, and the top plate is located on the top of the side walls.

[0018] (III) Beneficial Effects

[0019] The beneficial effects of this utility model are as follows: This utility model provides a base plate structure and a concrete module unit. By directly prefabricating functional layers on the concrete substrate of the concrete module unit to form an integral base plate structure module, it eliminates the construction time required to add new functional layers during the on-site construction phase and avoids the complex functional layer structures of existing systems. Furthermore, in the case of prefabricating functional layers on the surface of the concrete substrate, multiple intermittently arranged irregularly shaped reinforcing ribs are cast and connected on the lower surface of the concrete slab. These irregularly shaped reinforcing ribs extend along the span direction of the concrete substrate. They possess high strength, are lightweight, and are easy to transport, ensuring the strength and rigidity of the concrete slab. Compared to existing technologies, this base plate structure effectively reduces the thickness of the base plate while increasing the number of functional layers, thus reducing the overall building weight; it also shortens on-site construction time and improves the integration level and assembly efficiency of the modules. Attached Figure Description

[0020] Figure 1This is a top view schematic diagram of the base plate structure and construction method of a concrete module unit according to the present invention, and of the base plate structure of Embodiment 1 of the concrete module unit.

[0021] Figure 2 for Figure 1 Cross-sectional view of the mid-base plate structure at point AA;

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of the midsole plate structure at point C;

[0023] Figure 4 for Figure 1 Cross-sectional view of the midsole plate structure at BB;

[0024] Figure 5 for Figure 4 Enlarged schematic diagram of the mid-base plate structure at point D.

[0025] [Explanation of Labels in the Attached Image]

[0026] 1: Concrete base plate; 11: Concrete slab; 111: Pipe trench; 12: Irregular reinforcing bar; 13: Threaded steel bar segment; 14: Steel mesh; 15: Angle steel;

[0027] 2: Functional layer; 21: Heating layer; 211: Underfloor heating pipes; 212: Heat dissipation plate; 22: Insulation layer; 221: Insulation board;

[0028] 3: Surface layer;

[0029] a: Span direction. Detailed Implementation

[0030] To better explain and facilitate understanding of the present invention, a detailed description of the invention is provided below with reference to the accompanying drawings and specific embodiments. In this document, directional terms such as "upper," "lower," etc., are used interchangeably with other directional terms. Figure 2 The orientation is used as a reference.

[0031] This invention proposes a base slab structure and construction method for a concrete modular unit, addressing the technical issues of existing concrete modular units where the base slab requires further construction to meet heating, insulation, and soundproofing needs, leading to increased construction time and excessively thick base slabs. This invention prefabricates functional layers directly on the concrete substrate to form an integral base slab structure, eliminating the need for additional functional layers during on-site construction and avoiding the complexities of existing functional layer structures. Furthermore, while prefabricating functional layers on the concrete substrate surface, multiple intermittently arranged irregularly shaped reinforcing ribs are cast and connected on the lower surface of the concrete slab. These ribs extend along the span of the concrete substrate, exhibiting high strength, light weight, and ease of handling, while ensuring the strength and rigidity of the concrete slab. Compared to existing technologies, this base slab structure effectively reduces the base slab thickness while increasing functional layers, thus reducing the overall building weight; it also shortens on-site construction time, improves module integration, and enhances module assembly efficiency.

[0032] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0033] Example 1:

[0034] Reference Figures 1 to 5 This embodiment provides a base plate structure for a concrete module unit, including a concrete base plate 1. The concrete base plate 1 includes a concrete slab 11 and a plurality of irregularly shaped reinforcing ribs 12 embedded in the concrete slab 11 at intervals. The irregularly shaped reinforcing ribs 12 extend along the span direction a of the concrete base plate 1. The irregularly shaped reinforcing ribs 12 differ from commonly used circular ribs; their cross-sections can be Z-shaped, H-shaped, alpha-shaped, or zig-shaped, with the corners of the Z-shaped reinforcing ribs being right angles. The irregularly shaped reinforcing ribs 12 are formed by bending metal plates. They have high strength, are lightweight, and are easy to handle, ensuring the strength and rigidity of the concrete slab 11. The following description of this embodiment will use the Z-shaped irregularly shaped reinforcing rib 12 as an example.

[0035] Specifically, a functional layer 2 is prefabricated on the upper and / or lower surfaces of the concrete slab 11. This means that the functional layer 2 is set up during the prefabrication of the base slab structure. This eliminates the construction time and complex structure of the existing functional layer 2, such as the existing underfloor heating functional layer 2 which includes a slope-forming layer, insulation layer, and filling layer. Therefore, prefabricating the functional layer 2 directly onto the concrete slab 11 eliminates the need for construction layers like slope-forming and insulation layers, directly reducing the thickness of the base slab structure, lightening the overall building weight, improving the building's mechanical properties, and increasing the usable space within the concrete module units. Simultaneously, it shortens on-site construction time, increases the integration level of the modules, and improves assembly efficiency. The functional layer 2 mentioned here can achieve functions beyond just heating, insulation, and soundproofing; specific limitations are not specified here, depending on actual needs.

[0036] When a functional layer 2 is precast on the lower surface of the concrete slab 11, the irregularly shaped reinforcing rib 12 extends into the functional layer 2, and the lower surface of the irregularly shaped reinforcing rib 12 is flush with or higher than the lower surface of the functional layer 2. That is, the lower end of the irregularly shaped reinforcing rib 12 can provide fixation and support for the functional layer 2. It should be explained that the lower surface of the irregularly shaped reinforcing rib 12 being flush with the lower surface of the functional layer 2 includes two situations: one is that the entire lower surface of the functional layer 2 rests on the irregularly shaped reinforcing rib 12; the other is... (refer to...) Figure 5 The lower surface of functional layer 2 has a slot corresponding to the area of ​​the irregular reinforcing rib 12, and the slotted area of ​​functional layer 2 rests on the irregular reinforcing rib 12. When the lower surface of the irregular reinforcing rib 12 is higher than the lower surface of functional layer 2, that is, when the lower end of the irregular reinforcing rib 12 is horizontally inserted into functional layer 2, the irregular reinforcing rib 12 simultaneously plays the role of improving the strength and stiffness of the concrete slab 11, as well as fixing and supporting functional layer 2.

[0037] When the lower surface of the concrete slab 11 is the lower surface of the base slab structure, that is, when the functional layer 2 is not provided on the lower surface of the concrete slab 11, the lower surface of the irregularly shaped reinforcing rib 12 is either flush with or higher than the lower surface of the concrete slab 11. The lower surface of the irregularly shaped reinforcing rib 12 being flush with the lower surface of the concrete slab 11 includes two scenarios: one is that the entire lower surface of the concrete slab 11 rests on the irregularly shaped reinforcing rib 12; the other is that the lower surface of the concrete slab 11 has a groove corresponding to the area of ​​the irregularly shaped reinforcing rib 12, and the grooved area of ​​the concrete slab 11 rests on the irregularly shaped reinforcing rib 12. When the lower surface of the irregularly shaped reinforcing rib 12 is higher than the lower surface of the concrete slab 11, that is, the lower end of the irregularly shaped reinforcing rib 12 is inserted into the concrete slab 11. In this case, the irregularly shaped reinforcing rib 12 only serves to improve the strength and stiffness of the concrete slab 11.

[0038] Reference Figures 1 to 5This embodiment provides a base plate structure for a concrete module unit. The irregularly shaped reinforcing rib 12 is oriented vertically with its cross-section resembling a "U". At least the top of the irregularly shaped reinforcing rib 12 is embedded in the concrete slab 11. This facilitates the irregularly shaped reinforcing rib 12 in improving the strength and rigidity of the concrete slab 11. Simultaneously, the lower end of the irregularly shaped reinforcing rib 12 is convenient for installing the functional layer 2 when needed. The concrete slab 11 is formed by pouring expanded perlite concrete, ceramsite concrete, foamed concrete, or ordinary concrete. Among these, expanded perlite concrete, ceramsite concrete, and foamed concrete materials have properties such as light weight, good thermal insulation, and ease of grooving, while also possessing characteristics such as good fluidity, high early strength, short curing period, and no cracking. The following description uses the "U"-shaped irregularly shaped reinforcing rib 12 as an example.

[0039] Reference Figures 1 to 5 This embodiment provides a base plate structure for a concrete module unit. Multiple threaded steel bar segments 13 are spaced apart at the top of the irregularly shaped reinforcing rib 12 along the span direction a of the concrete substrate 1. The threaded steel bar segments 13 horizontally pass through the top of the irregularly shaped reinforcing rib 12 and are perpendicular to the span direction a of the concrete substrate 1. The threaded steel bar segments 13 are embedded within the concrete slab 11. The threaded steel bar segments 13 facilitate the connection between the irregularly shaped reinforcing rib 12 and the concrete slab 11 as a whole. It should be noted that the highest point of the top of the irregularly shaped reinforcing rib 12 within the concrete slab 11 does not exceed half the thickness of the concrete slab 11. This ensures the strength of the concrete slab 11 without affecting the construction of the upper surface of the concrete slab 11.

[0040] Reference Figures 1 to 5 This embodiment provides a base plate structure for a concrete module unit. The concrete base plate 1 also includes multiple reinforcing mesh sheets 14, which are laid within the concrete slab 11. The edges of the reinforcing mesh sheets 14 are welded or tied to adjacent threaded reinforcing bar segments 13 within the concrete slab 11. Similarly, the highest position of the reinforcing mesh sheets 14 within the concrete slab 11 does not exceed 1 / 2 of the thickness of the concrete slab 11. The reinforcing mesh sheets 14 improve the strength and crack resistance of the concrete slab 11. The diameter of the reinforcing mesh sheets 14 is 3-5 mm, preferably 4 mm, which satisfies the strength and crack resistance requirements of the concrete slab 11 without affecting its integrity.

[0041] Reference Figures 1 to 5This embodiment provides a base plate structure for a concrete modular unit. The functional layer 2 includes a heating layer 21 located on the upper surface of the concrete slab 11, and the heating layer 21 includes underfloor heating pipes 211. A pipe groove 111 is provided on the upper surface of the concrete slab 11, and the underfloor heating pipes 211 are laid within the pipe groove 111, i.e., the underfloor heating pipes 211 are embedded within the concrete slab 11, which reduces the thickness of the base plate structure. The pipe groove 111 is formed either by using a special grooving machine after the foamed perlite concrete slab 11 has solidified, or by using a steel pipe to press grooves during the initial setting of the concrete. The base plate structure also includes a surface layer 3 laid on the upper surface of the concrete slab 11.

[0042] Reference Figures 1 to 5 This embodiment provides a base plate structure for a concrete modular unit. The heating layer 21 also includes a heat spreader 212, which is laid between the surface layer 3 and the concrete slab 11. The heat spreader 212 is mainly used to improve the uniformity of heat distribution and thermal efficiency, and can be set as needed.

[0043] Reference Figures 1 to 5 This embodiment provides a base plate structure for a concrete module unit. The functional layer 2 also includes an insulation layer 22 composed of multiple insulation boards 221 spliced ​​together, which is disposed on the lower surface of the concrete slab 11. The lower flange of the irregular reinforcing rib 12 extends beyond the lower surface of the concrete slab 11 by a first specified distance, which is the thickness of the insulation board 221. The edge of the insulation board 221 located in the middle of the insulation layer 22 extends between the lower flange of the irregular reinforcing rib 12 and the lower surface of the concrete slab 11. The insulation board 221 can be selected as XPS extruded polystyrene board. The lower flange of the irregular reinforcing rib 12 can fix the insulation board 221 to prevent it from falling off during transportation and hoisting. The insulation layer 22 works in conjunction with the heating layer 21 to provide insulation. During the non-heating season, the insulation layer 22 provides thermal insulation. In addition, the insulation layer 22 also provides sound insulation. Of course, in addition to this arrangement of insulation layer 22 and heating layer 21, functional layer 2 can also be arranged in other ways, depending on the function.

[0044] It should be noted that in this embodiment, the thickness of the concrete slab 11 is 50-60mm, the thickness of the functional layer 2 is 15-40mm, the thickness of the surface layer 3 is 15-20mm, and the overall thickness of the base slab structure (including the surface layer 3) is 80-100mm. Compared with the existing technology of constructing the functional layer 2 on the base slab later (the overall thickness of the base slab reaches 150-200mm), this embodiment significantly reduces the overall thickness of the base slab structure.

[0045] Reference Figures 1 to 5This embodiment provides a base plate structure for a concrete modular unit. The concrete base plate 1 also includes angle steel 15 disposed around the concrete slab 11. The upper part of the first flange of the angle steel 15 is attached to the outer edge of the concrete slab 11, and the second flange is located below the concrete slab 11 at a second specified distance from the lower surface of the concrete slab 11. The second specified distance is equal to the thickness of the insulation board 221. The angle steel 15 is cast and connected to the concrete slab 11 by studs or threaded reinforcing bars. The edge of the insulation board 221 located at the outer edge of the insulation layer 22 extends between the second flange of the angle steel 15 and the lower surface of the concrete slab 11. The angle steel 15 cooperates with the irregular reinforcing bars 12 to form a complete concrete base plate 1. When the base plate structure is applied in a concrete modular unit, the angle steel 15 located around the concrete slab 11 is used for welding connection to the side wall of the concrete modular unit. The studs or threaded reinforcing bars provided on the angle steel are used to enhance the bond between the angle steel and the concrete. This utility model uses lightweight aggregate concrete such as expanded clay concrete, foamed concrete, and expanded perlite concrete for the concrete base slab, which improves the overall thermal insulation performance and effectively reduces the weight of the floor slab.

[0046] The construction method of the base plate structure of the concrete module unit in this embodiment is as follows: S1, Lay irregularly shaped reinforcing bars 12 and angle steel 15 located at the edge horizontally at intervals, keeping the cross-sections of the irregularly shaped reinforcing bars 12 and angle steel 15 upright. S2, Refer to... Figures 1 to 5 If functional layers 2 need to be set on both the upper and lower surfaces of the concrete slab 11 to be formed, then the lower functional layer 2 is laid on the irregular reinforcing bar 12 in the order from bottom to top, that is, the functional layer 2 is connected to the lower end of the irregular reinforcing bar 12; keep the top of the irregular reinforcing bar 12 exposed, first lay the steel mesh, and then pour concrete on the functional layer 2 to form the concrete slab 11. After the concrete solidifies, the upper functional layer 2 is laid on the concrete slab 11.

[0047] If the functional layer 2 only needs to be set on the lower surface of the concrete slab 11 to be formed, then the functional layer 2 is laid on the irregular reinforcing bar 12 in the order from bottom to top, keeping the top of the irregular reinforcing bar 12 exposed, and then concrete is poured on top of the functional layer 2 to form the concrete slab 11.

[0048] If functional layer 2 only needs to be placed on the upper surface of the concrete slab 11 to be formed, then concrete is poured on the irregular reinforcing bars 12 in a bottom-to-top order to form the concrete slab 11. At this time, the lower end of the irregular reinforcing bars 12 can be flush with the lower surface of the concrete slab 11, and then functional layer 2 is laid on the concrete slab 11. The entire construction process of the base plate structure is simple and quick, and easy to promote and apply.

[0049] Example 2:

[0050] This embodiment provides a concrete modular unit, including the base slab structure mentioned in Embodiments 1 and 2, as well as side walls and a top slab; the side walls are arranged around the base slab structure above it, and the top slab is located on top of the side walls. The widespread application of the base slab structure with integrated functional layer 2 in concrete modular units can reduce the overall building weight, shorten on-site construction time, increase the integration level of the modules, and improve the assembly efficiency of the modules.

[0051] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0052] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0053] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A floor structure of a concrete modular unit, characterized in that, Comprising a concrete substrate (1); The concrete substrate (1) includes a concrete slab body (11), and a plurality of spaced-apart special-shaped reinforcing ribs (12) embedded in the concrete slab body (11), and the special-shaped reinforcing ribs (12) extend along the span direction (a) of the concrete substrate (1); A functional layer (2) is prefabricated on the upper surface and / or lower surface of the concrete slab body (11); When the functional layer (2) is prefabricated on the lower surface of the concrete slab body (11), the special-shaped reinforcing ribs (12) extend into the functional layer (2), and the lower surface of the special-shaped reinforcing ribs (12) is flush with or higher than the lower surface of the functional layer (2); When the lower surface of the concrete slab body (11) is the lower surface of the bottom plate structure, the lower surface of the special-shaped reinforcing ribs (12) is flush with or higher than the lower surface of the concrete slab body (11).

2. The floor structure of a concrete modular unit according to claim 1, wherein, The cross-section of the special-shaped reinforcing ribs (12) is in the shape of a capital C, I, king-shaped, or Z; The special-shaped reinforcing ribs (12) are oriented in the upright direction of the cross-sectional shape, and at least the top of the special-shaped reinforcing ribs (12) is embedded in the concrete slab body (11); The concrete slab body (11) is formed by pouring one of expanded perlite concrete, ceramsite concrete, foam concrete, and ordinary concrete.

3. The bottom plate structure of the concrete module unit according to claim 2, wherein A plurality of threaded steel bar segments (13) are arranged at intervals along the span direction (a) of the concrete substrate (1) at the top of the special-shaped reinforcing ribs (12), the threaded steel bar segments (13) horizontally pass through the top of the special-shaped reinforcing ribs (12), and the threaded steel bar segments (13) are perpendicular to the span direction (a) of the concrete substrate (1); The threaded steel bar segments (13) are embedded in the concrete slab body (11).

4. The floor structure of a concrete modular unit according to claim 3, wherein The concrete substrate (1) further includes a plurality of steel mesh sheets (14), the steel mesh sheets (14) are laid in the concrete slab body (11), and the edges of the steel mesh sheets (14) are welded or tied to the adjacent threaded steel bar segments (13) in the concrete slab body (11).

5. The floor structure of a concrete modular unit as claimed in claim 2, wherein, Further comprising a surface layer (3); The functional layer (2) includes a heating layer (21) located on the upper surface of the concrete slab body (11), and the heating layer (21) includes floor heating pipelines (211); A pipe groove (111) is provided on the upper surface of the concrete slab body (11), and the floor heating pipelines (211) are laid in the pipe groove (111); The surface layer (3) is laid on the upper surface of the concrete slab body (11).

6. The base plate structure of the concrete module unit as described in claim 5, characterized in that, The heating layer (21) further includes a heat spreader plate (212), and the heat spreader plate (212) is laid between the surface layer (3) and the concrete slab body (11).

7. A floor structure for concrete modular units as claimed in claim 2 or 5, wherein, The functional layer (2) further includes a heat insulation layer (22) formed by splicing a plurality of heat insulation boards (221), and the heat insulation layer (22) is provided on the lower surface of the concrete slab body (11); The lower flange of the irregular reinforcing bar (12) extends out of the lower surface of the concrete slab (11) by a first specified distance; The edge of the insulation board (221) located in the middle of the insulation layer (22) extends into the space between the lower flange of the irregular reinforcing bar (12) and the lower surface of the concrete slab (11); The first specified distance is the thickness of the insulation board (221).

8. The floor structure of a concrete modular unit according to claim 7, wherein The concrete substrate (1) also includes angle steel (15) disposed around the concrete slab (11). The upper part of the first flange of the angle steel (15) is attached to the outer edge of the concrete slab (11), and the second flange is located below the concrete slab (11) at a second specified distance from the lower surface of the concrete slab (11). The angle steel (15) is connected to the concrete slab (11) by studs or threaded steel bars set on the angle steel (15); The edge of the insulation board (221) located at the outer edge of the insulation layer (22) extends between the second flange of the angle steel (15) and the lower surface of the concrete slab (11); The second specified distance is the thickness of the insulation board (221).

9. The base plate structure of the concrete module unit as described in claim 1, characterized in that, The thickness of the concrete slab (11) is 50-60 mm; The thickness of the functional layer (2) is 15-40 mm; The thickness of the base plate structure is 80-100mm.

10. A concrete modular unit, characterized by The base plate structure, side walls and top plate of the concrete modular unit as described in any one of claims 1-9; The sidewall is arranged around the bottom plate structure above the bottom plate structure, and the top plate is located on the top of the sidewall.

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