Modular building

Abstract

This utility model relates to the field of modular building technology, and more particularly to a modular building. The utility model includes a top slab connection structure and supporting components. The top slab connection structure includes multiple sets of U-shaped reinforcing bars arranged longitudinally along a partition channel and multiple transversely spaced connecting reinforcing bars. Each set of U-shaped reinforcing bars includes a first U-shaped bar and a second U-shaped bar arranged vertically and pre-embedded in a composite top slab, with their openings facing away from each other and meeting at the partition channel to form a rectangular structure. Multiple connecting reinforcing bars are inserted within the rectangular structure formed by the multiple sets of U-shaped reinforcing bars. Concrete is poured into the partition channel to enclose the multiple sets of U-shaped reinforcing bars and the multiple connecting reinforcing bars, forming a concealed beam. By enclosing the multiple sets of U-shaped reinforcing bars and the multiple connecting reinforcing bars with concrete to form a concealed beam, load-bearing walls or columns are not required when connecting two modules, thus avoiding the division of interior space and disruption of the overall layout.

Description

Technical Field

[0001] This utility model relates to the field of modular building technology, and in particular to a modular building. Background Technology

[0002] Modular concrete construction is a new type of construction method in which the structure, decoration, equipment and pipeline of building modules are completed in a factory, and then quickly assembled into a whole building on site through hoisting and connection. Due to its high degree of standardization and industrialization, short construction cycle and strong quality control, it has been widely used in buildings with small and medium spans, such as dormitories, hotels and office buildings.

[0003] Currently, in the practical application of modular buildings, for small-sized spaces within buildings (such as standard guest rooms and studio bedrooms), individual concrete modules are typically assembled together. Existing individual concrete modules have relatively small spans. To ensure support, load-bearing walls or columns are often installed both longitudinally and laterally within the module. This provides support through the structure of the individual concrete module itself, and also relies on the connection nodes between the modules to transfer loads, ultimately ensuring the overall structural stability of the small-sized building.

[0004] However, when constructing large-scale spaces (such as large single-level apartments with open-plan living rooms and dining rooms), the use of single-unit concrete modules is not suitable. Large-scale spaces require significant horizontal and vertical spans (especially the connecting area between the living room and dining room), and to ensure a sense of spaciousness and visual aesthetics, traditional load-bearing walls or columns cannot be used for support. Forcibly installing load-bearing walls or columns would divide the interior space and disrupt the overall layout. However, without load-bearing walls or columns, the rigidity of the individual concrete modules and the strength of the connections between them are far from sufficient to bear the vertical and horizontal loads of a large-span space. This can easily lead to module deformation, connection failure, or even module collapse, posing a serious risk to the personal safety of the residents.

[0005] Therefore, there is an urgent need for a modular building that can achieve safe docking of large-span spaces. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the existing technology, this utility model provides a modular building that solves the technical problems of insufficient rigidity and connection strength between existing single concrete modules when constructing large-span apartment buildings, which also require the construction of load-bearing walls or load-bearing columns for support, thus affecting the interior layout.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0010] This utility model provides a modular building, including a first module and a second module side by side, both of which include a composite top slab and a bottom slab, with an interval channel formed between the two composite top slabs. It also includes a top slab connection structure and a support assembly. The top slab connection structure includes multiple sets of U-shaped reinforcing bar assemblies spaced longitudinally along the interval channel and multiple connecting reinforcing bars spaced laterally. Each set of U-shaped reinforcing bar assemblies includes a first U-shaped bar and a second U-shaped bar vertically arranged and pre-embedded in one of the composite top slabs, with their openings facing away from each other and meeting at the interval channel to form a rectangular structure. Multiple connecting reinforcing bars pass through the rectangular structure formed by the multiple sets of U-shaped reinforcing bar assemblies. Concrete is poured into the interval channel to enclose the multiple sets of U-shaped reinforcing bar assemblies and the multiple connecting reinforcing bars, forming a concealed beam. The support assembly is vertically and detachably installed in the first module and the second module to temporarily support the two composite top slabs and the two bottom slabs.

[0011] Preferably, both the first U-shaped rib and the second U-shaped rib include two horizontal ribs and two vertical ribs. The two horizontal ribs extend laterally and are fixedly connected to both ends of the vertical ribs, and the vertical ribs are located within the spacing channel. The openings of the first U-shaped rib and the second U-shaped rib face their corresponding composite top plates. A portion of the lower horizontal rib is embedded in its corresponding composite top plate, and the other portion is located within the spacing channel. The two horizontal ribs of the first U-shaped rib and the second U-shaped rib are aligned and stacked along the spacing channel, so that the portions of the two vertical ribs and four horizontal ribs located in the spacing channel form a rectangular structure. At least six connecting steel bars are threaded through each rectangular structure, and the six connecting steel bars are respectively tied to the top and bottom of the rectangular structure.

[0012] Preferably, the length of the horizontal rib embedded in the composite top slab is consistent with the transverse length of the composite top slab, and the length range of the horizontal rib located in the interval channel is 180mm-190mm; the embedding depth of the horizontal rib in the composite top slab is 45mm-50mm.

[0013] Preferably, multiple concrete ribs are fixedly connected to the opposite sidewalls of the two composite top slabs, and the multiple concrete ribs are arranged longitudinally at intervals along the spacing channel; each concrete rib is pre-embedded with a PVC pipe arranged horizontally along the width direction of the composite top slab, and both ends of the PVC pipe are connected to the outside. The multiple PVC pipes pre-embedded in the multiple concrete ribs of the same composite top slab have the same axis and are used to pass through the connecting steel bars.

[0014] Preferably, the support assembly includes two support frames and multiple bolts; each of the concrete ribs and the two base plates are pre-embedded with vertically arranged threaded sleeves; the top and bottom of the two support frames respectively abut against the bottom of the two composite top plates and the multiple concrete ribs, and the top of the two base plates; a portion of the bolts vertically pass through the top of the support frames and are screwed one by one into the threaded sleeves in the corresponding multiple concrete ribs, and another portion of the bolts vertically pass through the bottom of the support frames and are screwed one by one into the corresponding multiple threaded sleeves in the base plates.

[0015] Preferably, a reinforcing component is horizontally fitted on the outer wall of each threaded sleeve. One end of the reinforcing component on the threaded sleeve located in the concrete rib is pre-embedded in the composite top plate, and the other end is pre-embedded in the concrete rib. The reinforcing components on the threaded sleeve located in the bottom plate are all pre-embedded in the bottom plate to reinforce the threaded sleeve.

[0016] Preferably, the reinforcement component includes a reinforcement plate; the reinforcement plate is horizontally arranged and sleeved on the outer wall of the threaded sleeve, one end of the reinforcement plate on the threaded sleeve located in the concrete rib is pre-embedded in the composite top plate, and the other end is pre-embedded in the concrete rib; the reinforcement plate on the threaded sleeve located in the bottom plate is pre-embedded in the bottom plate.

[0017] Preferably, the reinforcement component further includes a plurality of reinforcement ribs; the plurality of reinforcement ribs are longitudinally spaced along the interval channel and are respectively embedded in the composite top plate and the bottom plate; some of the reinforcement ribs are fixedly connected to the bottom of the reinforcement plate embedded in the composite top plate, and some of the reinforcement ribs are fixedly connected to the top of the reinforcement plate embedded in the bottom plate, so as to further reinforce the reinforcement plate and the threaded sleeve.

[0018] Preferably, the support frame includes two horizontal square tubes and multiple vertical square tubes; the two horizontal square tubes are arranged vertically and vertically, and both extend along the width direction of the composite top plate. The top of the upper horizontal square tube abuts against the bottom of the edge of the composite top plate facing the other composite top plate and the bottom of multiple concrete ribs, and the bottom of the lower horizontal square tube abuts against the top of the base plate; the multiple vertical square tubes are located between the two horizontal square tubes, and both ends of the vertical square tubes are fixedly connected to the opposite sides of the two horizontal square tubes; some of the bolts pass vertically through the upper horizontal square tube and are screwed into the multiple threaded sleeves corresponding to them, and other bolts pass vertically through the lower horizontal square tube and are screwed into the multiple threaded sleeves corresponding to them.

[0019] Preferably, there is a gap between the two upper horizontal square tubes in the two supporting frames, and a blocking strip is provided at the gap; the two sides of the blocking strip are respectively bonded to the opposite sides of the two horizontal square tubes, and the top of the blocking strip is flush with the top of the two horizontal square tubes, for sealing the concrete.

[0020] (III) Beneficial Effects

[0021] The beneficial effects of this utility model are:

[0022] This utility model discloses a modular building system. By setting multiple sets of U-shaped reinforcing bar components, each set includes a first U-shaped reinforcing bar and a second U-shaped reinforcing bar pre-embedded in a composite roof slab. The first and second U-shaped reinforcing bars enclose a rectangular structure, with multiple connecting reinforcing bars horizontally passing through this rectangular structure. The two composite roof slabs are then connected by concrete, and the multiple sets of U-shaped reinforcing bar components and connecting reinforcing bars are encased to form a concealed beam. This eliminates the need for load-bearing walls or columns, as is common in existing technologies, preventing the division of interior space and disruption of the overall layout, thus ensuring the spaciousness and visual appeal of the large-span space. Simultaneously, the concealed beam structure effectively transfers vertical and horizontal loads across the large-span space, improving the connection strength and overall rigidity of the two composite roof slabs, preventing deformation and connection failure of the first and second modules, thereby preventing the collapse of the two composite roof slabs and ensuring residential safety. By setting up support components and detachably installing them within the first and second modules, temporary support can be provided for the composite roof and floor, preventing module deformation or damage during construction due to incomplete module forming or insufficient load-bearing capacity. Furthermore, the support components can be removed after construction is completed and the structure is stable, thus avoiding the occupation of internal building space and improving the utilization rate of building space. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the first and second modules of a modular building according to the present invention.

[0024] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3 This is a front-view three-dimensional structural diagram of a modular building according to the present invention;

[0026] Figure 4 This is a cross-sectional structural diagram of a modular building according to the present invention;

[0027] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0028] Figure 6 This is a schematic diagram of the overall three-dimensional structure of concrete ribs, connecting steel bars, threaded sleeves and reinforcing components of a modular building according to the present invention.

[0029] Figure 7 This is a schematic diagram of the overall three-dimensional structure of the support frame of a modular building according to the present invention.

[0030] Figure 8 This is a three-dimensional structural diagram of a set of U-shaped bar components and multiple connecting steel bars tied together in a modular building support frame according to the present invention.

[0031] [Explanation of Labels in the Attached Image]

[0032] 1: First module; 11: Composite top slab; 12: Bottom slab; 2: Second module; 3: Top slab connection structure; 31: U-shaped reinforcement assembly; 311: First U-shaped reinforcement; 3111: Horizontal reinforcement; 3112: Vertical reinforcement; 312: Second U-shaped reinforcement; 32: Connecting reinforcement; 4: Support assembly; 41: Support frame; 411: Horizontal square tube; 412: Vertical square tube; 42: Bolt; 5: Concrete rib; 6: PVC pipe; 7: Threaded sleeve; 8: Reinforcement assembly; 81: Reinforcement plate; 82: Reinforcement rib; 9: Blocking strip; a: Rectangular structure. Detailed Implementation

[0033] 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.

[0034] Example

[0035] like Figure 1 As shown, this embodiment of a modular building includes a first module 1 and a second module 2 arranged side by side. The two modules are horizontally opposite each other and have identical structures. Each includes a corresponding stacked top plate 11 and a bottom plate 12, with a spacer channel formed between the two stacked top plates 11 and a spacer between the two bottom plates 12. The building also includes a top plate connecting structure 3 and a support component 4. It should be noted that the direction along the extension of the spacer channel is longitudinal, and the direction perpendicular to the extension of the spacer channel is transverse.

[0036] Specifically, such as Figure 1 As shown, the top slab connection structure 3 includes multiple sets of U-shaped rib assemblies 31 arranged longitudinally along the interval channels and multiple transversely spaced connecting ribs 32, such as... Figures 2-4As shown, each group of U-shaped rib components 31 includes a first U-shaped rib 311 and a second U-shaped rib 312, which are vertically arranged and pre-embedded in a composite roof slab 11. Their openings are set opposite to each other and meet at the interval channel to form a rectangular structure a. Multiple connecting steel bars 32 are placed in the interval channel and pass through the rectangular structure a formed by multiple groups of U-shaped rib components 31. Concrete is poured into the interval channel to cover the multiple groups of U-shaped rib components 31 and multiple connecting steel bars 32 into a whole structure, forming a hidden beam. This eliminates the need for load-bearing walls or columns as in the prior art when connecting the first module 1 and the second module 2, avoiding the division of interior space and disruption of the overall layout, thus ensuring the spaciousness and visual aesthetics of the large-span space. At the same time, the hidden beam structure can effectively transfer the vertical and horizontal loads of the large-span space, improve the connection strength and overall rigidity of the two composite roof slabs 11, prevent deformation of the first module 1 and the second module 2 and failure of the connection nodes, thereby preventing the collapse of the two composite roof slabs 11 and ensuring residential safety. The support component 4 is vertically and detachably installed in the first module 1 and the second module 2 to temporarily support the two stacked top plates 11 and the two bottom plates 12. This avoids module deformation or damage caused by incomplete module forming or insufficient load-bearing capacity during construction. After construction is completed and the structure is stable, the support component 4 can be removed, thereby not occupying the internal space of the building and improving the utilization rate of building space.

[0037] Furthermore, such as Figure 2 As shown, both the first U-shaped rib 311 and the second U-shaped rib 312 include two horizontal ribs 3111 and two vertical ribs 3112. The two horizontal ribs 3111 extend laterally and are fixedly connected to both ends of the vertical ribs 3112, and the vertical ribs 3112 are located in the spacer channel. The openings of the first U-shaped rib 311 and the second U-shaped rib 312 face their corresponding composite top slab 11. A portion of the lower horizontal rib 3111 is embedded in its corresponding composite top slab 11, and the other portion is located in the spacer channel. It can transfer the load borne by the composite top slab 11 to the vertical rib 3112 through the horizontal ribs 3111, and then diffuse it to the overall structure through the hidden beam, avoiding local stress concentration. The two horizontal bars 3111 of the first U-shaped bar 311 and the second U-shaped bar 312 are aligned and stacked along the interval channel, so that the two vertical bars 3112 and the four horizontal bars 3111 in the interval channel form a rectangular structure a. This makes the stress on the U-shaped bar assembly 31 more balanced, and each group of U-shaped bar assemblies 31 forms an independent stress unit at the interval between the two composite top slabs 11. This makes the overall stress on the hidden beam more dispersed, thereby improving the shear and bending resistance of the hidden beam in the transverse and longitudinal directions, reducing the risk of failure of the connection node between the first module 1 and the second module 2, further improving the load-bearing capacity of the large-span space, and ensuring the stress performance of the large-span floor slab formed after the splicing of the first module 1 and the second module 2. Figure 8As shown, each rectangular structure a has six connecting steel bars 32 inserted inside. The six connecting steel bars 32 are tied to the top and bottom of the rectangular structure a respectively, thereby binding the connecting steel bars 32 to multiple rectangular structures a into a whole structure, which facilitates the subsequent concrete pouring to form a hidden beam.

[0038] Furthermore, the length of the horizontal reinforcing bars 3111 embedded in the composite top slab 11 is consistent with the transverse length of the composite top slab 11, so that the first U-shaped reinforcing bars 311 and the second U-shaped reinforcing bars 312 are stably embedded in their respective composite top slabs 11. The length of the horizontal reinforcing bars 3111 located in the interval channel ranges from 180mm to 190mm, in order to improve the rigidity and connection strength of the subsequently formed hidden beams and prevent the hidden beams from breaking due to insufficient structural strength. The embedding depth of the horizontal reinforcing bars 3111 in the composite top slab 11 is 45mm to 50mm, in order to improve the embedding strength of the U-shaped reinforcing bars and prevent them from detaching from the composite top slab 11.

[0039] It should be noted that both the first U-shaped reinforcement 311 and the second U-shaped reinforcement 312 are formed by bending a single steel bar using a bending machine. That is, the two horizontal reinforcement bars 3111 and one vertical reinforcement bar 3112 of the same U-shaped reinforcement form a single integral structure. Bending machines are commonly used equipment on construction sites for bending steel bars. Generally, the length of the vertical reinforcement bar 3112 is determined according to the thickness of the composite top slab 11. The specific length of the vertical reinforcement bar 3112 depends on the on-site construction; this embodiment does not limit its length.

[0040] Furthermore, such as Figure 1 , Figure 3 and Figure 4 As shown, multiple concrete ribs 5 are fixedly connected to the opposite sidewalls of the two composite roof slabs 1. These ribs 5 are spaced longitudinally along the interval channels to improve the structural stiffness at the edge of the composite roof slab 11 facing the other composite roof slab 11, preventing cracking or deformation due to stress concentration at the edge of the composite roof slab 11 under large-span loads. Simultaneously, when the multiple concrete ribs 5, together with the U-shaped reinforcement assembly 31, connecting reinforcement 32, and poured concrete, form a hidden beam, it further improves the shear and bending resistance of the hidden beam, reducing the risk of failure at the module connection nodes. Figure 5 and Figure 6 As shown, each concrete rib 5 is pre-embedded with a PVC pipe 6 horizontally arranged along the width direction of the composite top plate 11, and both ends of the PVC pipe 6 are connected to the outside. The multiple PVC pipes 6 pre-embedded in the multiple concrete ribs 5 on the same composite top plate 11 have the same axis and are used to pass through the connecting steel bars 32. This provides a passage for the connecting steel bars 32 that need to pass through multiple concrete ribs 5, and also provides a guiding function for the connecting steel bars 32, thereby improving the accuracy of passing through the connecting steel bars 32.

[0041] Preferably, the thickness of the hidden beam and the concrete rib is the same as the thickness of the composite top slab to improve the consistency between the first module and the second module.

[0042] Furthermore, such as Figure 3 and Figure 4 As shown, the support assembly 4 includes two support frames 41 and multiple bolts 42. Vertically embedded threaded sleeves 7 are pre-embedded in each concrete rib 5 and in both base plates 12. The top and bottom of the two support frames 41 abut against the bottom of the two composite top plates 11 and the multiple concrete ribs 5, and the top of the two base plates 12, respectively. A portion of the bolts 42 vertically pass through the top of the support frames 41 and are screwed one-to-one into the corresponding threaded sleeves 7 in the multiple concrete ribs 5; another portion of the bolts 42 vertically pass through the bottom of the support frames 41 and are screwed one-to-one into the corresponding threaded sleeves 7 in the base plates 12. By screwing the bolts 42 through the support frames 41 and into the corresponding threaded sleeves 7, effective support is achieved when supporting the composite top plates 11 and base plates 12. After construction, the support frames 41 are easy to disassemble, and the disassembly process does not cause structural damage to the composite top plates 11, base plates 12, or concrete ribs 5. Furthermore, the support frame 41 can be recycled and reused in other modular building construction, reducing material waste and improving the utilization rate of the support component 4.

[0043] Furthermore, such as Figure 4 As shown, a reinforcing component 8 is horizontally fitted on the outer wall of each threaded sleeve 7. One end of the reinforcing component 8 on the threaded sleeve 7 located inside the concrete rib 5 is pre-embedded in the composite top plate 11, and the other end is pre-embedded in the concrete rib 5. This effectively restricts the displacement of the threaded sleeve 7 in the vertical and horizontal directions, preventing the threaded sleeve 7 from loosening or shifting when the bolt 42 is screwed into the threaded sleeve 7 or when under stress. At the same time, the reinforcing component 8 tightly connects the threaded sleeve 7 to the composite top plate 11 and the concrete rib 5, which can further disperse the load transmitted by the bolt 42, prevent cracking at the joint between the concrete rib 5 and the composite top plate 11 due to local stress concentration, and improve the stability of the entire modular building structure. The reinforcing components 8 on the threaded sleeve 7 located in the base plate 12 are all pre-embedded in the base plate 12 to reinforce the threaded sleeve 7, increase the contact area and interlocking strength between the threaded sleeve 7 and the concrete of the base plate 12, and prevent the threaded sleeve 7 from shifting or peeling off from the concrete of the base plate 12 when the bolt 42 is screwed to the threaded sleeve 7 or when it is subjected to vertical load.

[0044] Furthermore, such as Figure 4 and Figure 6As shown, the reinforcing component 8 includes a reinforcing plate 81. The reinforcing plate 81 is horizontally positioned and sleeved on the outer wall of the threaded sleeve 7. One end of the reinforcing plate 81 on the threaded sleeve 7, located within the concrete rib 5, is pre-embedded in the composite top slab 11, and the other end is pre-embedded in the concrete rib 5. The reinforcing plate 81 increases the contact area with the composite top slab 11 and the concrete rib 5, thereby transferring the bolt 42 tightening force and vertical load borne by the threaded sleeve 7 to the composite top slab 11 and the concrete rib 5, preventing loosening or detachment of the threaded sleeve 7 from the concrete contact surface due to excessive local stress. The reinforcing plate 81 on the threaded sleeve 7, located within the bottom slab 12, is pre-embedded within the bottom slab 12. The reinforcing plate 81 can resist vertical displacement of the threaded sleeve 7, enhance the shear resistance of the threaded sleeve 7 within the bottom slab 12, and prevent the threaded sleeve 7 from peeling off from the concrete of the bottom slab 12 due to lateral and vertical forces. Preferably, the vertical length of the threaded sleeve 7 is consistent with the thickness of the concrete rib 5 and the base plate 2, and both the upper and lower ends of the threaded sleeve 7 are open to the outside, thereby increasing the threading depth between the bolt 42 and the threaded sleeve 7, so that the support frame 41 can be stably connected to the threaded sleeve 7. Before pouring concrete to form a hidden beam, a plug can be inserted into the top opening of the threaded sleeve 7 to prevent concrete from entering the threaded sleeve 7, thus solidifying the bolt 42 and the concrete into an integral structure.

[0045] Furthermore, such as Figure 4 and Figure 6 As shown, the reinforcing component 8 also includes multiple reinforcing ribs 82. These reinforcing ribs 82 are longitudinally spaced along the interval channels and are pre-embedded in the composite top slab 11 and bottom slab 12, respectively. Some reinforcing ribs 82 are fixedly connected to the bottom of the reinforcing plate 81 pre-embedded in the composite top slab 11, and some reinforcing ribs 82 are fixedly connected to the top of the reinforcing plate 81 pre-embedded in the bottom slab 12, to further reinforce the reinforcing plate 81 and the threaded sleeve 7. This further disperses the load borne by the reinforcing plate 81, especially under bolt 42 tightening or vertical load action, resisting lateral deformation and vertical displacement of the reinforcing plate 81, preventing the reinforcing plate 81 from peeling off from the concrete of the composite top slab 11 or bottom slab 12, and making the threaded sleeve 7 more secure within the composite top slab 11 and bottom slab 12.

[0046] Among them, the reinforcing plate 81 and the reinforcing rib 82 are both steel profiles. The reinforcing rib 82 is Z-shaped to improve the pre-embedded strength of the reinforcing rib 82 in the composite top plate 11.

[0047] Furthermore, such as Figure 3 , Figure 4 and Figure 7As shown, the support frame 41 includes two horizontal square tubes 411 and multiple vertical square tubes 412. The two horizontal square tubes 411 are arranged vertically and extend along the width of the composite top slab 11. The top of the upper horizontal square tube 411 abuts against the bottom of the edge of the composite top slab 11 facing the other composite top slab 11 and the bottom of multiple concrete ribs 5. The bottom of the lower horizontal square tube 411 abuts against the top of the bottom slab 12. Multiple vertical square tubes 412 are located between the two horizontal square tubes 411, and both ends are fixedly connected to the opposite sides of the two horizontal square tubes 411, thus effectively supporting the upper and lower horizontal square tubes 411, and consequently providing effective support for the edges of the composite top slab 11 and the floor. Furthermore, the multiple vertical square tubes 412 can transfer the vertical load borne by the composite top slab 11 to the bottom slab 12 through the two horizontal square tubes 411, thereby ensuring that the support frame 41 can effectively and stably support the composite top slab 11 and the bottom slab 12. Some bolts 42 pass vertically through the upper horizontal square tube 411 and are screwed into the corresponding multiple threaded sleeves 7 one by one, while other bolts 42 pass vertically through the lower horizontal square tube 411 and are screwed into the corresponding multiple threaded sleeves 7 one by one, thereby detachably installing the support frame 41 between the corresponding stacked top plate 11 and bottom plate 12, ensuring effective support for the stacked top plate 11 and bottom plate 12.

[0048] Furthermore, such as Figure 3 and Figure 4 As shown, there is a gap between the two upper horizontal square tubes 411 in the two support frames 41, and a blocking strip 9 is provided at the gap. The two sides of the blocking strip 9 are respectively bonded to the opposite sides of the two horizontal square tubes 411, and the top of the blocking strip 9 is flush with the top of the two horizontal square tubes 411. It is used to seal the concrete so that the blocking strip 9 can prevent concrete slurry from entering between the two support frames 41 and adhering to the side walls of the two support frames 41. This prevents the concrete from sticking to the support frames 41 after hardening. Therefore, when the support frames 41 are removed after construction, there is no need to clean the residual concrete on the support frames 41, reducing the cleaning process and wear of the support frames 41, extending the service life of the support frames 41, and reducing the construction cost of modular buildings.

[0049] In addition, a protective layer of plain concrete is laid on the outer perimeter of the composite top slab 11. The protective layer covers each steel bar to prevent the steel bar from contacting the air and thus prevent the steel bar from rusting.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 modular building comprising a first module (1) and a second module (2) side by side, both including a composite top slab (11) and a bottom slab (12), with a spacer channel formed between the two composite top slabs (11), characterized in that, It also includes a top plate connection structure (3) and a support assembly (4); The top plate connection structure (3) includes multiple sets of U-shaped rib assemblies (31) arranged longitudinally along the interval channel and multiple connecting steel bars (32) arranged laterally. Each set of U-shaped rib assemblies (31) includes a first U-shaped rib (311) and a second U-shaped rib (312) arranged vertically and pre-embedded in one of the composite top plates (11). Their openings are arranged opposite to each other and meet at the interval channel to form a rectangular structure (a). Multiple connecting steel bars (32) are inserted into the rectangular structure (a) formed by multiple sets of U-shaped rib assemblies (31). The interval channel is filled with concrete to cover the multiple sets of U-shaped rib assemblies (31) and multiple connecting steel bars (32) into an integrated structure, forming a hidden beam. The support component (4) is vertically and detachably installed in the first module (1) and the second module (2) to temporarily support the two stacked top plates (11) and the two bottom plates (12).

2. The modular building as described in claim 1, characterized in that: The first U-shaped rib (311) and the second U-shaped rib (312) each include two horizontal ribs (3111) and two vertical ribs (3112). The two horizontal ribs (3111) extend laterally and are fixedly connected to the two ends of the vertical ribs (3112), and the vertical ribs (3112) are located in the spacer channel. The openings of the first U-shaped rib (311) and the second U-shaped rib (312) both face the corresponding composite top plate (11). A portion of the horizontal rib (3111) located below is embedded in its corresponding composite top plate (11), and another portion is located in the spacer channel; The two horizontal bars of the first U-shaped bar (311) and the second U-shaped bar (312) are aligned and stacked along the interval channel so that the portions of the two vertical bars (3112) and four horizontal bars (3111) in the interval channel form a rectangular structure (a). At least six connecting bars (32) are inserted in each rectangular structure (a), and the at least six connecting bars (32) are tied to the top and bottom of the rectangular structure (a) respectively.

3. The modular building as described in claim 2, characterized in that: The length of the horizontal rib (3111) embedded in the composite top plate (11) is consistent with the transverse length of the composite top plate (11), and the length range of the horizontal rib (3111) located in the interval channel is 180mm-190mm. The horizontal reinforcement bar (3111) is embedded in the composite top plate (11) to a depth of 45mm-50mm.

4. The modular building as described in claim 3, characterized in that: Multiple concrete ribs (5) are fixedly connected to the opposite side walls of the two composite top plates (11), and the multiple concrete ribs (5) are arranged longitudinally along the interval channel; Each of the concrete ribs (5) is pre-embedded with a PVC pipe (6) arranged horizontally along the width direction of the composite top plate (11), and both ends of the PVC pipe (6) are connected to the outside. The multiple PVC pipes (6) pre-embedded in the multiple concrete ribs (5) on the same composite top plate (11) have the same axis and are used to pass through the connecting steel bars (32).

5. The modular building as described in claim 4, characterized in that: The support assembly (4) includes two support frames (41) and multiple bolts (42); Each of the concrete ribs (5) and the two base plates (12) are pre-embedded with vertically arranged threaded sleeves (7); The top and bottom of the two support frames (41) respectively abut against the bottom of the two composite top plates (11) and the multiple concrete ribs (5) and the top of the two bottom plates (12). A portion of the bolts (42) pass vertically through the top of the support frame (41) and are screwed one by one into the threaded sleeves (7) in the corresponding multiple concrete ribs (5). Another portion of the bolts (42) pass vertically through the bottom of the support frame (41) and are screwed one by one into the corresponding multiple threaded sleeves (7) in the bottom plate (12).

6. The modular building as described in claim 5, characterized in that: A reinforcing component (8) is horizontally fitted on the outer wall of each threaded sleeve (7). One end of the reinforcing component (8) on the threaded sleeve (7) located in the concrete rib (5) is pre-embedded in the composite top plate (11), and the other end is pre-embedded in the concrete rib (5). The reinforcing components (8) on the threaded sleeve (7) located in the base plate (12) are all pre-embedded in the base plate (12) to reinforce the threaded sleeve (7).

7. The modular building as described in claim 6, characterized in that: The reinforcement component (8) includes a reinforcement plate (81); The reinforcing plate (81) is horizontally arranged and sleeved on the outer wall of the threaded sleeve (7). One end of the reinforcing plate (81) on the threaded sleeve (7) located inside the concrete rib (5) is pre-embedded in the composite top plate (11), and the other end is pre-embedded in the concrete rib (5). The reinforcing plate (81) on the threaded sleeve (7) located in the base plate (12) is embedded in the base plate (12).

8. The modular building as described in claim 7, characterized in that: The reinforcement component (8) also includes a plurality of reinforcement ribs (82); Multiple reinforcing ribs (82) are arranged longitudinally along the interval channel and are respectively embedded in the composite top plate (11) and the bottom plate (12); Some of the reinforcing ribs (82) are fixedly connected to the bottom of the reinforcing plate (81) embedded in the composite top plate (11), and some of the reinforcing ribs (82) are fixedly connected to the top of the reinforcing plate (81) embedded in the bottom plate (12) to further reinforce the reinforcing plate (81) and the threaded sleeve (7).

9. The modular building as described in claim 5, characterized in that: The support frame (41) includes two horizontal square tubes (411) and multiple vertical square tubes (412); Two horizontal square tubes (411) are arranged vertically and vertically, and both extend along the width direction of the composite top plate (11). The top of the upper horizontal square tube (411) abuts against the bottom of the edge of the composite top plate (11) facing the other composite top plate (11) and the bottom of the multiple concrete ribs (5). The bottom of the lower horizontal square tube (411) abuts against the top of the bottom plate (12). The plurality of vertical square tubes (412) are located between the two horizontal square tubes (411), and both ends of the vertical square tubes (411) are fixedly connected to the opposite sides of the two horizontal square tubes (411); Some of the bolts (42) are vertically threaded through the upper horizontal square tube (411) and connected to the corresponding multiple threaded sleeves (7) one by one; other bolts (42) are vertically threaded through the lower horizontal square tube (411) and connected to the corresponding multiple threaded sleeves (7) one by one.

10. The modular building as described in claim 9, characterized in that: There is a gap between the two upper horizontal square tubes (411) in the two support frames (41), and a stop bar (9) is provided at the gap; The two sides of the blocking strip (9) are respectively bonded to the opposite sides of the two horizontal square tubes (411), and the top of the blocking strip (9) is flush with the top of the two horizontal square tubes (411) for sealing the concrete.

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