Bottom plate structure of concrete module unit, construction method and concrete module unit

Abstract

The invention relates to a bottom plate structure of a concrete module unit, a construction method and the concrete module unit.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] The present invention relates to the technical field of concrete modular buildings, and in particular to a bottom plate structure and a construction method of a concrete module unit, and a concrete module unit. Background Art

[0002] Concrete modular integrated buildings use standard modules as basic units. The main body of the modules is produced, bathroom appliances are installed, and mechanical and electrical pipelines and decorations are installed in the factory. Only the modules are assembled and the pipelines between the modules are connected on site. It is a new type of rapid construction method with the advantages of high assembly integration, fast construction efficiency and good construction quality.

[0003] At present, in order to meet the needs of concrete modular integrated buildings in heating, insulation, sound insulation, etc., further construction is usually carried out on the bottom plate of the concrete module unit, forming a situation where the bottom plate and the post-construction layer are superimposed. For example, the current floor heating installation can be divided into two forms: wet floor heating and dry floor heating. The wet floor heating consists of a slope layer, an insulation layer, a filling layer, and a finishing layer. The height occupied by the wet floor heating layer is about 100-120mm; the dry floor heating consists of a leveling layer, a floor heating groove insulation board module, a heat-equalizing layer, and a finishing layer. The height occupied by the dry floor heating layer is about 70-80mm; the above two floor heating installation methods are secondary construction on the bottom plate of the module unit. This has the following problems: secondary construction will extend the construction time of the entire building; the floor and the post-construction layer are superimposed, reducing the net height used in the concrete module unit and reducing the indoor space; the post-construction layer will increase the weight of the module unit and affect the structural performance of the entire building. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a bottom plate structure and construction method of a concrete module unit, and a concrete module unit, which solves the technical problems that the bottom plate of the existing concrete module unit needs to be further constructed to meet the heating, heat preservation and sound insulation requirements, resulting in an increase in the construction period of the entire building, and the bottom plate of the concrete module unit is too thick after construction.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] In a first aspect, an embodiment of the present invention provides a bottom plate structure of a concrete module unit, comprising a concrete base plate; the concrete base plate comprises a concrete slab body, and a plurality of spaced-apart special-shaped reinforcement bars pre-embedded in the concrete slab body, the special-shaped reinforcement bars extending along the span direction of the concrete base plate; a functional layer is prefabricated on the upper surface and / or lower surface of the concrete slab body; when a functional layer is prefabricated on the lower surface of the concrete slab body, the special-shaped reinforcement bars extend into the functional layer, and the lower surface of the special-shaped reinforcement bars is flush with or higher than the lower surface of the functional layer; when the lower surface of the concrete slab body is the lower surface of the bottom plate structure, the lower surface of the special-shaped reinforcement bars is flush with or higher than the lower surface of the concrete slab body.

[0009] Optionally, in the bottom plate structure of the concrete module unit, the cross-section of the special-shaped reinforcement bar is in the shape of a "J", "I", "W" or "Z"; the special-shaped reinforcement bar is oriented in the upright direction of its cross-section shape, and at least the top of the special-shaped reinforcement bar is pre-embedded in the concrete slab body; the concrete slab body is formed by casting one or more of expanded perlite concrete, ceramsite concrete, foam concrete and ordinary concrete.

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

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

[0012] Optionally, the bottom plate structure of the concrete module unit also includes a surface layer; the functional layer includes a heating layer located on the upper surface of the concrete slab, and the heating layer includes a floor heating pipeline; a pipe groove is provided on the upper surface of the concrete slab, and the floor heating pipeline is laid in the pipe groove; the surface layer is laid on the upper surface of the concrete slab.

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

[0014] Optionally, in the bottom plate structure of the concrete module unit, the functional layer also includes an insulation layer formed by splicing a plurality of insulation boards, and the insulation layer is arranged on the lower surface of the concrete slab body; the lower flange of the special-shaped reinforcement rib extends out of the lower surface of the concrete slab body 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 special-shaped reinforcement rib and the lower surface of the concrete slab body; the first specified distance is the thickness of the insulation board.

[0015] Optionally, in the bottom plate structure of the concrete module unit, the concrete base plate also includes angle steels arranged around the concrete slab body; the upper part of the first flange of the angle steel is in contact with the outer edge of the concrete slab body, and the second flange is located below the concrete slab body at a second specified distance from the lower surface of the concrete slab body; the angle steel is cast and connected to the concrete slab body by bolts or threaded steel bars arranged 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 body; the second specified distance is the thickness of the insulation board.

[0016] In a second aspect, an embodiment of the present invention provides a construction method for the bottom plate structure of the concrete module unit described in the first aspect, comprising the following steps: S1, laying special-shaped reinforcement bars at horizontal intervals; S2, if functional layers are required on both the upper and lower surfaces of the concrete slab to be formed, first lay the lower functional layer on the special-shaped reinforcement bars in a bottom-to-top order, keep the top of the special-shaped reinforcement bars exposed, then pour concrete on the functional layer to form a concrete slab, and then lay the upper functional layer on the concrete slab; if the functional layer only needs to be set on the lower surface of the concrete slab to be formed, then lay the functional layer on the special-shaped reinforcement bars in a bottom-to-top order, keep the top of the special-shaped reinforcement bars exposed, and then pour concrete on the functional layer to form a concrete slab; if the functional layer only needs to be set on the upper surface of the concrete slab to be formed, then pour concrete on the special-shaped reinforcement bars in a bottom-to-top order to form the concrete slab, and then lay the functional layer on the concrete slab.

[0017] In a third aspect, an embodiment of the present invention provides a concrete module unit, the aforementioned bottom plate structure, as well as side walls and a top plate; the side walls are arranged above the bottom plate structure around the bottom plate structure, and the top plate is arranged on top of the side walls.

[0018] (III) Beneficial effects

[0019] The beneficial effects of the present invention are as follows: the present invention provides a bottom plate structure and construction method of a concrete module unit, and a concrete module unit. Since the functional layer is directly prefabricated on the concrete substrate of the concrete module unit to form an integral bottom plate structure module, the construction time of adding a new functional layer during the construction stage on the construction site and the existing complex functional layer structure are saved; further, when the functional layer is prefabricated on the surface of the concrete substrate, a plurality of spaced and connected special-shaped reinforcement bars are cast on the lower surface of the concrete slab, and the special-shaped reinforcement bars extend along the span direction of the concrete substrate. The special-shaped reinforcement bars have high strength and light weight, are easy to carry, and can ensure the strength and rigidity of the concrete slab. Compared with the prior art, the bottom plate structure effectively reduces the bottom plate thickness while adding the functional layer, reduces the overall building self-weight; shortens the construction time on the construction site, and improves the integration degree of the module and the module assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic top view of a bottom plate structure and a construction method of a concrete module unit and a bottom plate structure of Example 1 of a concrete module unit according to the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of the cross section of the midsole plate structure at AA;

[0022] Figure 3 for Figure 2 An enlarged schematic diagram of the midsole plate structure at position C;

[0023] Figure 4 for Figure 1 Schematic diagram of the cross section of the midsole plate structure at BB;

[0024] Figure 5 for Figure 4 Enlarged schematic diagram of the midsole plate structure at D.

[0025] [Description of Reference Numerals]

[0026] 1: concrete base plate; 11: concrete plate body; 111: pipe groove; 12: special-shaped reinforcement bar; 13: threaded steel bar segment; 14: steel mesh; 15: angle steel;

[0027] 2: functional layer; 21: heating layer; 211: floor heating pipeline; 212: soaking plate; 22: insulation layer; 221: insulation board;

[0028] 3: Surface layer;

[0029] a: span direction. DETAILED DESCRIPTION

[0030] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below in conjunction with the accompanying drawings through specific embodiments. Figure 2 The orientation is used as a reference.

[0031] The embodiment of the present invention proposes a bottom plate structure and construction method of a concrete module unit, and a concrete module unit. The bottom plate of the existing concrete module unit needs to be further constructed to meet the heating, insulation and sound insulation requirements, which leads to an increase in the construction period of the entire building, and the technical problem that the bottom plate of the concrete module unit is too thick after construction; the functional layer is directly prefabricated on the concrete substrate of the concrete module unit to form an overall bottom plate structure module, which saves the construction time of adding a new functional layer during the construction stage on the construction site and the existing complex functional layer structure; further, when the functional layer is prefabricated on the surface of the concrete substrate, a plurality of spaced and connected special-shaped reinforcement bars are cast on the lower surface of the concrete plate body, and the special-shaped reinforcement bars extend along the span direction of the concrete substrate. The special-shaped reinforcement bars have high strength and light weight, are easy to carry, and can ensure the strength and rigidity of the concrete plate body. Compared with the prior art, the bottom plate structure effectively reduces the bottom plate thickness while adding the functional layer, reduces the self-weight of the entire building; shortens the construction time on the construction site, improves the integration degree of the module, and improves the assembly efficiency of the module.

[0032] In order to better understand the above technical solution, 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 accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0033] Embodiment 1:

[0034] Reference Figures 1 to 5 The present embodiment provides a base plate structure of a concrete module unit, including a concrete base plate 1, the concrete base plate 1 including a concrete slab body 11, and a plurality of spaced-apart special-shaped reinforcement ribs 12 pre-embedded in the concrete slab body 11, the special-shaped reinforcement ribs 12 extending along the span direction a of the concrete base plate 1. The special-shaped reinforcement ribs 12 are different from the commonly used circular ribs, and the cross-section of the special-shaped reinforcement ribs 12 can be a "J" shape, an "I" shape, a "W" shape, and a "Z" shape, wherein the corners of the cross-section of the "Z"-shaped reinforcement ribs are right angles. The special-shaped reinforcement ribs 12 are formed by bending a metal plate, and the special-shaped reinforcement ribs 12 have high strength, light weight, and are easy to carry, and can ensure the strength and rigidity of the concrete slab body 11. The subsequent content of this embodiment will be described using the "J"-shaped special-shaped reinforcement ribs 12 as an example.

[0035] Specifically, the functional layer 2 is prefabricated on the upper surface and / or lower surface of the concrete slab 11, that is, the setting of the functional layer 2 is completed during the prefabrication process of the bottom plate structure, so that the construction time of the newly added functional layer 2 during the construction stage of the construction site and the existing complex functional layer 2 structure are saved. For example, the existing floor heating functional layer 2 newly added during the construction stage includes a slope layer, an insulation layer, and a filling layer. Therefore, the functional layer 2 is directly prefabricated on the concrete slab 11, and construction layers such as the slope layer and the insulation layer are saved, which can directly reduce the thickness of the bottom plate structure, reduce the self-weight of the entire building, and help improve the mechanical properties of the building, and increase the available space in the height of the concrete module unit. At the same time, the construction time of the construction site is shortened, the degree of integration of the module is improved, and the assembly efficiency of the module is improved. The functional layer 2 mentioned here can realize functions such as heating, heat preservation, and sound insulation, which are subject to actual needs and are not specifically limited here.

[0036] When the lower surface of the concrete slab 11 is prefabricated with a functional layer 2, the special-shaped reinforcement bar 12 extends into the functional layer 2, and the lower surface of the special-shaped reinforcement bar 12 is flush with or higher than the lower surface of the functional layer 2, that is, the lower end of the special-shaped reinforcement bar 12 can fix and support the functional layer 2. It should be explained that the lower surface of the special-shaped reinforcement bar 12 is flush with the lower surface of the functional layer 2, which includes two situations: one is that the lower surface of the functional layer 2 is the entire plane on the special-shaped reinforcement bar 12, and the other is, referring to Figure 5 , the lower surface of the functional layer 2 is grooved in the area corresponding to the special-shaped reinforcement rib 12, and the grooved area of ​​the functional layer 2 is placed on the special-shaped reinforcement rib 12. When the lower surface of the special-shaped reinforcement rib 12 is higher than the lower surface of the functional layer 2, that is, the lower end of the special-shaped reinforcement rib 12 is horizontally inserted into the functional layer 2. At this time, the special-shaped reinforcement rib 12 plays a role in improving the strength and rigidity of the concrete slab 11, as well as fixing and supporting the functional layer 2.

[0037] When the lower surface of the concrete slab 11 is the lower surface of the bottom plate 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 special-shaped reinforcement rib 12 is flush with or higher than the lower surface of the concrete slab 11, wherein the lower surface of the special-shaped reinforcement rib 12 is flush with the lower surface of the concrete slab 11 in two cases, one is that the lower surface of the concrete slab 11 is the entire plane of the lower surface of the concrete slab 11 resting on the special-shaped reinforcement rib 12, and the other is that the lower surface of the concrete slab 11 is grooved in the area corresponding to the special-shaped reinforcement rib 12, and the grooved area of ​​the concrete slab 11 rests on the special-shaped reinforcement rib 12. When the lower surface of the special-shaped reinforcement rib 12 is higher than the lower surface of the concrete slab 11, that is, the lower end of the special-shaped reinforcement rib 12 is inserted into the concrete slab 11. At this time, the special-shaped reinforcement rib 12 only plays a role in improving the strength and rigidity of the concrete slab 11.

[0038] Reference Figures 1 to 5This embodiment provides a bottom plate structure of a concrete module unit, and the special-shaped reinforcement rib 12 is oriented in the upright direction of its cross-section, and at least the top of the special-shaped reinforcement rib 12 is pre-buried in the concrete slab 11, so that the special-shaped reinforcement rib 12 can play a role in improving the strength and rigidity of the concrete slab 11. At the same time, the lower end of the special-shaped reinforcement rib 12 is also convenient for installing the functional layer 2 when necessary. The concrete slab 11 is formed by pouring expanded perlite concrete, ceramsite concrete, foamed concrete or ordinary concrete, among which the expanded perlite concrete, ceramsite concrete and foamed concrete materials have the properties of light weight, good thermal insulation performance, convenient grooving, etc., and also have the characteristics of good fluidity, high early strength, short maintenance period, no cracking, etc. The following is an example of the special-shaped reinforcement rib 12 in the shape of a Chinese character.

[0039] Reference Figures 1 to 5 This embodiment provides a bottom plate structure of a concrete module unit, and a plurality of threaded steel bar segments 13 are arranged at intervals on the top of the special-shaped reinforcement bar 12 along the span direction a of the concrete base plate 1. The threaded steel bar segment 13 passes horizontally through the top of the special-shaped reinforcement bar 12, and the threaded steel bar segment 13 is perpendicular to the span direction a of the concrete base plate 1, and the threaded steel bar segment 13 is embedded in the concrete slab body 11. The threaded steel bar segment 13 helps to connect the special-shaped reinforcement bar 12 and the concrete slab body 11 as a whole. Here, it should be noted that the highest position of the top of the special-shaped reinforcement bar 12 in the concrete slab body 11 does not exceed 1 / 2 of the thickness of the concrete slab body 11, which can ensure the strength of the concrete slab body 11 without affecting the construction of the upper surface of the concrete slab body 11.

[0040] Reference Figures 1 to 5 This embodiment provides a bottom plate structure of a concrete module unit, and the concrete base plate 1 also includes a plurality of steel meshes 14, which are laid in the concrete slab body 11, and the edges of the steel meshes 14 are welded or tied to the adjacent threaded steel bar segments 13 in the concrete slab body 11. Similarly, the highest position of the steel mesh 14 in the concrete slab body 11 does not exceed 1 / 2 of the thickness of the concrete slab body 11, and the steel mesh 14 improves the strength and crack resistance of the concrete slab body 11. The diameter of the steel mesh 14 is 3-5 mm, preferably 4 mm, which can meet the strength and crack resistance requirements of the concrete slab body 11 without affecting the integrity of the concrete slab body 11.

[0041] Reference Figures 1 to 5This embodiment provides a bottom plate structure of a concrete module unit, and 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 a floor heating pipeline 211. A pipe groove 111 is provided on the upper surface of the concrete slab body 11, and the floor heating pipeline 211 is laid in the pipe groove 111, that is, the floor heating pipeline 211 is embedded in the concrete slab body 11, which reduces the thickness of the bottom plate structure. Among them, the pipe groove 111 is opened by a special grooving machine after the foam perlite concrete slab body 11 solidifies, or the pipe groove 111 is formed by a steel pipe grooving method when the concrete is initially set. The bottom plate structure also includes a surface layer 3 laid on the upper surface of the concrete slab body 11.

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

[0043] Reference Figures 1 to 5 This embodiment provides a bottom plate structure of a concrete module unit, and the functional layer 2 also includes an insulation layer 22 formed by splicing a plurality of insulation boards 221, and the insulation layer 22 is arranged on the lower surface of the concrete slab body 11. The lower flange of the special-shaped reinforcement rib 12 extends out of the lower surface of the concrete slab body 11 by a first specified distance, and the first specified distance 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 special-shaped reinforcement rib 12 and the lower surface of the concrete slab body 11. The insulation board 221 can be an XPS extruded polystyrene board, and the lower flange of the special-shaped reinforcement rib 12 can fix the insulation board 221 to prevent it from falling off during transportation and hoisting. The insulation layer 22 cooperates with the heating layer 21 to play a role of insulation. During the non-heating period, the insulation layer 22 plays a role of heat insulation. In addition, the insulation layer 22 also has a sound insulation effect. Of course, in addition to this arrangement of the thermal insulation layer 22 and the heating layer 21, the functional layer 2 may also have other arrangements, depending on how the function is achieved.

[0044] It should be further explained that, in this embodiment, 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 surface layer 3 is 15-20 mm, and the overall thickness of the base plate structure (including the surface layer 3) is 80-100 mm. Compared with the prior art method of later constructing the functional layer 2 on the base plate (the overall base plate thickness reaches 150-200 mm), this embodiment significantly reduces the overall thickness of the base plate structure.

[0045] Reference Figures 1 to 5, this embodiment provides a bottom plate structure of a concrete module unit, and the concrete base plate 1 also includes an angle steel 15 arranged around the concrete slab body 11. The upper part of the first flange of the angle steel 15 fits the outer edge of the concrete slab body 11, and the second flange is located below the concrete slab body 11 at a second specified distance from the lower surface of the concrete slab body 11, and the second specified distance is the thickness of the insulation board 221. The angle steel 15 is cast and connected to the concrete slab body 11 through bolts or threaded steel 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 body 11. The angle steel 15 cooperates with the special-shaped reinforcement ribs 12 to form a complete concrete base plate 1. When the bottom plate structure is applied to the concrete module unit, the angle steel 15 located around the concrete slab body 11 is used to be welded and connected to the side wall of the concrete module unit. The bolts or threaded steel bars arranged on the angle steel are used to strengthen the combination of the angle steel and concrete. The concrete floor of the present invention adopts lightweight aggregate concrete such as ceramsite concrete, foam concrete, expanded perlite concrete, etc., which improves the overall thermal insulation performance and can effectively reduce the weight of the floor

[0046] The construction method of the bottom plate structure of the concrete module unit in this embodiment is as follows: S1, lay the special-shaped reinforcement ribs 12 and the angle steel 15 at the edge at intervals horizontally, and keep the cross-section of the special-shaped reinforcement ribs 12 upright. S2, refer to Figures 1 to 5 If the functional layer 2 is required to be provided on both the upper and lower surfaces of the concrete slab 11 to be formed, the lower functional layer 2 is first laid on the special-shaped reinforcement ribs 12 in a bottom-to-top order, that is, the functional layer 2 is connected to the lower end of the special-shaped reinforcement ribs 12; the top of the special-shaped reinforcement ribs 12 is kept exposed, the steel mesh is laid first, and then concrete is poured 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, the functional layer 2 is laid on the special-shaped reinforcement ribs 12 from bottom to top, keeping the top of the special-shaped reinforcement ribs 12 exposed, and then concrete is poured on the functional layer 2 to form the concrete slab 11.

[0048] If the functional layer 2 is only required to be arranged on the upper surface of the concrete slab 11 to be formed, concrete is poured on the special-shaped reinforcement ribs 12 from bottom to top to form the concrete slab 11. At this time, the lower end of the special-shaped reinforcement ribs 12 can be flush with the lower surface of the concrete slab 11, and then the functional layer 2 is laid on the concrete slab 11. The entire construction process of the base plate structure is simple and rapid, and is easy to promote and apply.

[0049] Embodiment 2:

[0050] This embodiment provides a construction method for the bottom plate structure of the concrete module unit in embodiment 1, comprising the following steps: S1, horizontally laying special-shaped reinforcement bars 12 and angle steels 15 at intervals, keeping the cross-sections of the special-shaped reinforcement bars 12 and the angle steels 15 upright. S2, referring to Figures 1 to 5 If the functional layer 2 is required to be provided on both the upper and lower surfaces of the concrete slab 11 to be formed, the lower functional layer 2 is first laid on the special-shaped reinforcement ribs 12 in a bottom-to-top order, that is, the functional layer 2 is connected to the lower end of the special-shaped reinforcement ribs 12; the top of the special-shaped reinforcement ribs 12 is kept exposed, the steel mesh is laid first, and then concrete is poured 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.

[0051] If the functional layer 2 only needs to be set on the lower surface of the concrete slab 11 to be formed, the functional layer 2 is laid on the special-shaped reinforcement ribs 12 from bottom to top, keeping the top of the special-shaped reinforcement ribs 12 exposed, and then concrete is poured on the functional layer 2 to form the concrete slab 11.

[0052] If the functional layer 2 only needs to be set on the upper surface of the concrete slab 11 to be formed, then concrete is poured on the special-shaped reinforcement ribs 12 in a bottom-to-top order to form the concrete slab 11. At this time, the lower end of the special-shaped reinforcement ribs 12 can be flush with the lower surface of the concrete slab 11, and then the functional layer 2 is laid on the concrete slab 11.

[0053] The entire construction process of the base plate structure is simple and rapid, and is easy to promote and apply.

[0054] Embodiment 3:

[0055] This embodiment provides a concrete module unit, including the bottom plate structure mentioned in Embodiment 1 and Embodiment 2, as well as side walls and a top plate; the side wall is arranged above the bottom plate structure around the bottom plate structure, and the top plate is arranged on the top of the side wall. The bottom plate structure integrated with the functional layer 2 is promoted and applied in the concrete module unit, which can reduce the self-weight of the entire building, shorten the construction time on the construction site, increase the integration degree of the module, and improve the assembly efficiency of the module.

[0056] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In the present invention, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0059] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. 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 invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0060] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may alter, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A floor structure of a concrete module unit, characterized in that: comprising a concrete substrate (1); The concrete base plate (1) comprises a concrete plate body (11), and a plurality of spaced-apart special-shaped reinforcement ribs (12) pre-buried in the concrete plate body (11), wherein the special-shaped reinforcement ribs (12) extend along a span direction (a) of the concrete base plate (1); A functional layer (2) is prefabricated on the upper surface and / or lower surface of the concrete slab (11); When a functional layer (2) is prefabricated on the lower surface of the concrete slab (11), the special-shaped reinforcement ribs (12) extend into the functional layer (2), and the lower surface of the special-shaped reinforcement ribs (12) is flush with or higher than the lower surface of the functional layer (2); When the lower surface of the concrete slab (11) is the lower surface of the bottom plate structure, the lower surface of the special-shaped reinforcement rib (12) is flush with or higher than the lower surface of the concrete slab (11).

2. The floor structure of the concrete module unit according to claim 1, characterized in that: The cross-section of the special-shaped reinforcing rib (12) is in the shape of a "J", a "I", a "W" or a "Z"; The special-shaped reinforcement bar (12) is oriented in the upright direction of its cross-sectional shape, and at least the top of the special-shaped reinforcement bar (12) is pre-embedded in the concrete slab (11); The concrete slab (11) is formed by pouring one or more of expanded perlite concrete, ceramsite concrete, foamed concrete and ordinary concrete.

3. The floor structure of the concrete module unit according to claim 2, characterized in that: A plurality of threaded steel bar segments (13) are arranged at intervals on the top of the special-shaped reinforcement bar (12) along the span direction (a) of the concrete base plate (1), the threaded steel bar segments (13) horizontally passing through the top of the special-shaped reinforcement bar (12), and the threaded steel bar segments (13) are perpendicular to the span direction (a) of the concrete base plate (1); The threaded steel bar segment (13) is pre-buried in the concrete slab (11).

4. The floor structure of the concrete module unit according to claim 3, characterized in that: The concrete base plate (1) further comprises a plurality of steel mesh sheets (14), wherein 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 the concrete module unit according to claim 2, characterized in that: Also includes a surface layer (3); The functional layer (2) comprises a heating layer (21) located on the upper surface of the concrete slab (11), and the heating layer (21) comprises a floor heating pipeline (211); The upper surface of the concrete slab (11) is provided with a pipe groove (111), and the floor heating pipeline (211) is laid in the pipe groove (111); The surface layer (3) is laid on the upper surface of the concrete slab (11).

6. The floor structure of the concrete module unit according to claim 5, characterized in that: The heating layer (21) further comprises a heat-spreading plate (212), wherein the heat-spreading plate (212) is laid between the surface layer (3) and the concrete slab body (11).

7. The floor structure of the concrete module unit according to claim 2 or 5, characterized in that: The functional layer (2) further comprises a thermal insulation layer (22) formed by splicing a plurality of thermal insulation boards (221), and the thermal insulation layer (22) is arranged on the lower surface of the concrete slab body (11); The lower flange of the special-shaped reinforcement rib (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 between the lower flange of the special-shaped reinforcement rib (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 the concrete module unit according to claim 7, characterized in that: The concrete base plate (1) further comprises angle steels (15) arranged around the concrete plate body (11); The upper portion of the first flange of the angle steel (15) is in contact with 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 casting via bolts or threaded steel bars arranged 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. A method for constructing a bottom plate structure of a concrete module unit according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, laying special-shaped reinforcement ribs (12) at intervals horizontally; S2. If the functional layer (2) is required to be provided on both the upper and lower surfaces of the concrete slab (11) to be formed, the lower functional layer (2) is first laid on the special-shaped reinforcement ribs (12) in a bottom-to-top order, with the top of the special-shaped reinforcement ribs (12) exposed, and then concrete is poured on the functional layer (2) to form the concrete slab (11), and then the upper functional layer (2) is laid on the concrete slab (11); If the functional layer (2) only needs to be arranged on the lower surface of the concrete slab (11) to be formed, the functional layer (2) is laid on the special-shaped reinforcement ribs (12) from bottom to top, the top of the special-shaped reinforcement ribs (12) is kept exposed, and then concrete is poured on the functional layer (2) to form the concrete slab (11); If the functional layer (2) only needs to be arranged on the upper surface of the concrete slab (11) to be formed, concrete is poured on the special-shaped reinforcement ribs (12) from bottom to top to form the concrete slab (11), and then the functional layer (2) is laid on the concrete slab (11).

10. A concrete module unit, characterized in that: The invention comprises the bottom plate structure according to any one of claims 1 to 8 or the bottom plate structure obtained by the construction method according to claim 9, as well as side walls and a top plate; The side wall is arranged above the bottom plate structure around the bottom plate structure, and the top plate is arranged on the top of the side wall.

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