Connecting joint combination structure of modular building

Abstract

The utility model discloses a connection node combination structure of a modular building. Comprising two lower module frame columns arranged side by side in a spaced mode, two upper module frame columns arranged on the tops of the two lower module frame columns correspondingly, and upper and lower module connecting plates connected between the two upper module frame columns and the two lower module frame columns. A lower module top frame beam is arranged at the top of one side of the lower module frame column; an upper module bottom frame beam is arranged at the top of one side, close to the lower module top frame beam, of the upper module frame column; a first slurry blocking structure is arranged between the two upper module bottom frame beams, and a second slurry blocking structure is arranged between the two lower module top frame beams; and a third slurry blocking structure is arranged between the upper module bottom frame beam and the corresponding lower module top frame beam. Gaps between beams are filled through the first slurry blocking structures, the second slurry blocking structures and the third slurry blocking structures, the overall performance of the structure is improved, and the problems of cold bridges, fire prevention, wind prevention and insect prevention existing between modules of the connection joint are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a modular building connection node combination structure. Background Technology

[0002] Modular construction is conducive to comprehensively improving building quality, reducing environmental pollution and ecological damage, and aligns with the national green development concept and the policy orientation of building a resource-saving society. As a new type of building, modular construction has experienced rapid development in my country in recent years due to its superior performance and distinctive features.

[0003] However, since the floor slabs of modular buildings are prefabricated in sections and the boxes are separate, connected only by steel plates at the joints, the overall integrity is poor. Therefore, ordinary stacked boxes are usually not suitable for high-rise buildings. To ensure the safety of high-rise modular buildings, it is necessary to adopt measures such as cast-in-place roofing, rigid joints, setting internal supports, performance-based design, and adding lateral force resisting structures, which reduces their economic efficiency.

[0004] Connection nodes are a core technology in modular design, and their selection directly affects structural safety, economy, and construction convenience. The nodes are not identical across projects, lacking standardization and universality, which limits application and promotion. Furthermore, regarding nodes: they are relatively larger than competing corner fittings, with thicker connection plates and higher steel consumption. In terms of the system structure: modular double-beam, double-column designs consume a large amount of steel; functional requirements, such as bottom frame structures and frame-support transitions, further increase structural steel consumption. The larger the module proportion, the greater the average steel consumption. Applications in hospitals, schools, and high-rise buildings require performance-based design or energy dissipation and vibration reduction measures; higher performance requirements and energy dissipation and vibration reduction components increase structural costs and complicate design. Modular buildings lack any connection between beam-column connection nodes between upper and lower modules, resulting in gaps, cold bridges, and difficulties in fireproofing and waterproofing. Utility Model Content

[0005] Therefore, this utility model aims to solve the problem in existing modular buildings where gaps exist between the beam-column connection nodes of upper and lower modules, resulting in cold bridges that make fire prevention, waterproofing, and sealing difficult, thereby providing a modular building connection node combination structure.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0007] A modular building connection node assembly structure includes two lower module frame columns arranged side-by-side at intervals, two upper module frame columns respectively disposed on top of the two lower module frame columns, and upper and lower module connecting plates connecting the two upper module frame columns and the two lower module frame columns; each of the two lower module frame columns has a lower module top frame beam on one side of its top; each of the two upper module frame columns has an upper module bottom frame beam on the side of its top closest to the lower module top frame beam; the two upper module bottom frame beams are respectively disposed above the two lower module top frame beams; a first grout sealing structure is disposed between the two upper module bottom frame beams, a second grout sealing structure is disposed between the two lower module top frame beams; and a third grout sealing structure is disposed between the upper module bottom frame beam and the corresponding lower module top frame beam.

[0008] Furthermore, the two upper bottom frame beams are arranged opposite each other in a C-shape, and a grouting space suitable for pouring concrete is provided between the two upper bottom frame beams. A lower connector with one end extending into the grouting space is provided on the top frame beam of the lower module, and an upper connector with one end extending into the grouting space is provided on the bottom frame beam of the upper module.

[0009] Furthermore, both the upper connector and the lower connector are connecting studs, and the diameter of one end of the connecting stud located in the injection space is larger than the diameter of the other end.

[0010] Furthermore, each of the two upper bottom frame beams is provided with reinforcing bars that are fixedly connected to the upper module frame column.

[0011] Furthermore, the two upper module frame columns are respectively positioned directly above the two lower module frame columns, and the top of the lower module top frame beam is flush with the top of the lower module frame column.

[0012] Furthermore, an upper module floor slab is provided on the upper module frame column, and a lower module floor slab is provided on the lower module frame column.

[0013] Furthermore, an upper module bottom plate, which is fixedly connected to the corresponding upper module frame column, is fixedly installed between the upper module floor slab and the corresponding upper module bottom frame beam.

[0014] Furthermore, a lower module top plate, which is fixedly connected to the corresponding lower module frame column, is fixedly installed between the lower module floor slab and the corresponding lower module top frame beam.

[0015] Furthermore, both the upper module base plate and the lower module top plate are made using grouting.

[0016] Furthermore, the first, second, and third grout-blocking structures are all made of PE grout-blocking material.

[0017] The technical solution of this utility model has the following advantages:

[0018] 1. The modular building connection node combination structure provided by this utility model, by setting a first grout-sealing structure between the bottom frame beams of two upper modules, can fill the node gaps on the left and right sides of the upper modules, thereby improving the cold bridge effect; by setting a second grout-sealing structure between the top frame beams of two lower modules, can fill the node gaps on the left and right sides of the lower modules, thereby improving the node cold bridge effect; by setting a third grout-sealing structure between the bottom frame beam of the upper module and the corresponding top frame beam of the lower module, can fill the node gaps between the upper and lower modules, thereby improving the cold bridge effect between the connection nodes of the upper and lower modules; by filling the gaps between beams through the first, second, and third grout-sealing structures, the overall structural performance is improved, effectively improving the existing problems of cold bridge, fire prevention, wind resistance, and insect prevention.

[0019] 2. The modular building connection node combination structure provided by this utility model has two upper bottom frame beams arranged in a C-shape opposite each other, and a grouting space suitable for pouring concrete is provided between the two upper bottom frame beams. A lower connector is provided on the lower module top frame beam, with one end extending into the grouting space, and an upper connector is provided on the upper module bottom frame beam, with one end extending into the grouting space. This design, by providing a suitable pouring space for concrete, ensures the connection strength and stability between the bottom frame beams of the two upper modules after the concrete has solidified. The pouring space also enhances the load-bearing capacity of the unit module. Furthermore, by installing an upper connector on the bottom frame beam of the upper module that extends into the pouring space, the connection stability between the concrete in that space and the bottom frame beam of the upper module is improved after the concrete in that space has solidified. Similarly, by installing a lower connector on the top frame beam of the lower module that extends into the pouring space, the connection stability between the concrete in that space and the top frame beam of the lower module is improved after the concrete in that space has solidified. Ultimately, this design improves the overall performance of the connection nodes, strengthens the connection between modules on the same floor, and increases the load-bearing capacity of the connection nodes.

[0020] 3. The modular building connection node assembly structure provided by this utility model includes upper and lower connecting members that are both connecting studs. The diameter of one end of the connecting stud located within the grouting space is larger than the diameter of the other end. This arrangement, where the diameter of one end of the connecting stud within the grouting space is larger than the diameter of the other end, provides a limiting effect. When solidified concrete is present within the grouting space, this effectively strengthens the connection between the connecting stud and the solidified concrete, preventing the risk of detachment and failure between the connecting stud and the solidified concrete, and ensuring a reliable connection between modules.

[0021] 4. The modular building connection node combination structure provided by this utility model includes reinforcing bars at the top of both upper bottom frame beams, which are fixedly connected to the upper module frame columns. This design enhances the connection strength and stability between the upper module frame columns and the upper module bottom frame beams after the concrete poured later in the pouring space has solidified; it also ensures the reliability of the connection between the upper bottom frame beams and the concrete poured later in the pouring space, avoiding the risk of reinforcing bars coming loose and failing; furthermore, the installation of the reinforcing bars is highly efficient, requiring no additional positioning assistance, and can be prefabricated in a factory, effectively improving construction efficiency.

[0022] 5. The modular building connection node combination structure provided by this utility model includes an upper module base plate fixedly installed between the upper module floor slab and the corresponding upper module bottom frame beam, which is fixedly connected to the corresponding upper module frame column. This arrangement allows for communication and connection between the upper module floor slab, the upper module bottom frame beam, and the upper module frame beam through the upper module base plate, thereby improving the overall integrity of the upper module and strengthening the connection between modules on the same floor.

[0023] 6. The modular building connection node combination structure provided by this utility model includes a lower module top plate fixedly installed between the lower module floor slab and the corresponding lower module top frame beam, which is fixedly connected to the corresponding lower module frame column. This arrangement allows for communication and connection between the lower module floor slab, the lower module top frame beam, and the lower module frame beam through the lower module bottom plate, thereby improving the overall integrity of the lower module and strengthening the connection between modules on the same floor.

[0024] 7. The modular building connection node assembly structure provided by this utility model uses grouting for both the upper module bottom plate and the lower module top plate. This arrangement, using grouting to form the upper module bottom plate and the lower module top plate, effectively fills the gaps between the connecting structures, reduces steel consumption while ensuring the load-bearing capacity of the unit module, and allows for higher load-bearing capacity requirements to be met with a smaller cross-section.

[0025] 8. The modular building connection node assembly structure provided by this utility model, wherein the first grouting structure, the second grouting structure, and the third grouting structure are all made of PE grouting material. This arrangement ensures the structural strength of the connection node due to the strong corrosion resistance and long service life of PE material, making it suitable for various corrosive environments. Simultaneously, PE material possesses excellent explosion-proof and fire-resistant properties, maintaining stability under harsh environments such as high temperature and high pressure, thus ensuring the fire resistance of the connection node. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A three-dimensional structural diagram of a traditional unit connection node;

[0028] Figure 2 A three-dimensional structural diagram of step S3 provided in the embodiment of this utility model;

[0029] Figure 3 A three-dimensional structural diagram of a portion of the structure in step S7 provided in this embodiment of the present utility model;

[0030] Figure 4 A perspective structural diagram of step S8 provided in an embodiment of this utility model;

[0031] Figure 5 This is a schematic diagram of the structure after concrete is poured into the grouting space in step S11 of this utility model embodiment.

[0032] Explanation of reference numerals in the attached drawings: 1. Lower module frame column; 2. Upper module frame column; 3. Upper and lower module connecting plate; 4. Lower module top frame beam; 5. Upper module bottom frame beam; 6. First grouting structure; 7. Second grouting structure; 8. Third grouting structure; 9. Grouting space; 10. Lower connector; 11. Upper connector; 12. Beard reinforcement; 13. Upper module floor slab; 14. Lower module floor slab; 15. Upper module bottom plate; 16. Lower module top plate; 17. Longitudinal reinforcement. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] like Figure 1 The traditional unit connection node shown uses steel beams as the bottom frame beam of the upper module and the top frame beam of the lower module, respectively, which greatly increases the amount of steel used and the construction cost. Moreover, the upper and lower beams of the module are separate structures and cannot work together to coordinate internal forces. There are gaps between the beams and columns of the upper and lower modules, which will produce a cold bridge effect and make fireproofing and waterproofing difficult.

[0038] like Figure 2-5The modular building connection node combination structure shown includes two lower module frame columns 1 arranged side by side at intervals, two upper module frame columns 2 respectively set on top of the two lower module frame columns 1, and upper and lower module connecting plates 3 connecting the two upper module frame columns 2 and the two lower module frame columns 1; each of the two lower module frame columns 1 has a lower module top frame beam 4 set on one side of its top; each of the two upper module frame columns 2 has an upper module bottom frame beam 5 set on the side of its top closest to the lower module top frame beam 4; the two upper module bottom frame beams 5 are respectively set above the two lower module top frame beams 4; a first grout sealing structure 6 is set between the two upper module bottom frame beams 5, a second grout sealing structure 7 is set between the two lower module top frame beams 4; and a third grout sealing structure 8 is set between the upper module bottom frame beam 5 and the corresponding lower module top frame beam 4.

[0039] This modular building's connection node combination structure, by setting a first grout-sealing structure 6 between the bottom frame beams 5 of two upper modules, can fill the node gaps on the left and right sides of the upper modules, thereby improving the cold bridge effect; by setting a second grout-sealing structure 7 between the top frame beams 4 of two lower modules, it can fill the node gaps on the left and right sides of the lower modules, improving the node cold bridge effect; by setting a third grout-sealing structure 8 between the bottom frame beam 5 of the upper module and the corresponding top frame beam 4 of the lower module, it can fill the node gaps between the upper and lower modules, improving the cold bridge effect between the connection nodes of the upper and lower modules. Through the first grout-sealing structure 6, the second grout-sealing structure 7, and the third grout-sealing structure 8, the gaps between beams are filled, improving the overall structural performance and effectively improving existing problems such as cold bridges, fire prevention, wind resistance, and insect prevention.

[0040] In this embodiment, the first grout-blocking structure 6, the second grout-blocking structure 7, and the third grout-blocking structure 8 are all made of PE grout-blocking material. This arrangement leverages the strong corrosion resistance and long service life of PE material, making it suitable for various corrosive environments and ensuring the structural strength of the connection joint. Simultaneously, PE material possesses excellent explosion-proof and fire-resistant properties, maintaining stability under harsh environments such as high temperature and high pressure, thus ensuring the fire resistance of the connection joint. Specifically, the first grout-blocking structure 6 and the second grout-blocking structure 7 are both PE grout-blocking rods, and the third grout-blocking structure 8 is a PE grout-blocking strip. In alternative embodiments, the grout-blocking structures can also be made of other corrosion-resistant and high-temperature-resistant materials.

[0041] In this embodiment, two upper bottom frame beams are arranged opposite each other in a C-shape, and a grouting space 9 suitable for pouring concrete is provided between the two upper bottom frame beams. A lower connector 10 with one end extending into the grouting space 9 is fixedly installed on the lower module top frame beam 4, and an upper connector 11 with one end extending into the grouting space 9 is fixedly installed on the upper module bottom frame beam 5. This configuration, by providing a suitable pouring space 9 for concrete pouring, ensures the connection strength and stability between the bottom frame beams 5 of the two upper modules after the concrete has solidified. The pouring space 9 also improves the load-bearing capacity of the unit module. Furthermore, by fixing an upper connector 11, one end of which extends into the pouring space 9, to the bottom frame beam 5 of the upper module, the connection stability between the concrete in the pouring space 9 and the bottom frame beam 5 of the upper module is improved after the concrete has solidified. Similarly, by fixing a lower connector 10, one end of which extends into the pouring space 9, to the top frame beam 4 of the lower module, the connection stability between the concrete in the pouring space 9 and the top frame beam 4 of the lower module is improved after the concrete has solidified. This, in turn, enhances the overall performance of the connection nodes, strengthens the connection between modules on the same floor, and increases the load-bearing capacity of the connection nodes.

[0042] Specifically, the two upper module frame columns 2 are respectively set directly above the two lower module frame columns 1, and the top of the lower module top frame beam 4 is flush with the top of the lower module frame column 1.

[0043] In this embodiment, both the upper connector 11 and the lower connector 10 are connecting studs, with the diameter of one end of the connecting stud located within the grouting space 9 being larger than the diameter of the other end. This arrangement, where the diameter of one end of the connecting stud within the grouting space 9 is larger than the diameter of the other end, provides a limiting effect. When solidified concrete is present within the grouting space 9, this effectively strengthens the connection between the connecting stud and the solidified concrete, preventing the risk of detachment and failure between the connecting stud and the solidified concrete, and ensuring a reliable connection between the modules.

[0044] In this embodiment, each of the two upper bottom frame beams is provided with reinforcing bars 12 fixedly connected to the upper module frame column 2 at its top. This arrangement enhances the connection strength and stability between the upper module frame column 2 and the upper module bottom frame beam 5 after the concrete poured later in the pouring space 9 has solidified; it also ensures the reliability of the connection between the upper bottom frame beam and the concrete poured later in the pouring space 9, preventing the reinforcing bars 12 from detaching and failing; furthermore, the reinforcing bars 12 have high installation efficiency, requiring no additional positioning assistance, and can be prefabricated in a factory, effectively improving construction efficiency. Specifically, longitudinal reinforcing bars 17 are also provided on opposite sides of the reinforcing bars 12, fixedly connected to the upper module frame column 2. This arrangement improves the structural stability and load-bearing capacity of the concrete column after it solidifies and forms a concrete column within the pouring space 9, enhancing the crack resistance of the concrete column.

[0045] Specifically, the lower connector 10 is vertically fixed to the top frame beam 4 of the lower module, the upper connector 11 is horizontally fixed to the inner side wall of the bottom frame beam 5 of the upper module, the reinforcing bar 12 is vertically fixed to the top inner wall of the bottom frame beam 5 of the upper module, with one end extending into the grouting space 9, and the longitudinal reinforcing bar 17 is horizontally fixed to the side wall of the frame column 2 of the upper module, with the longitudinal reinforcing bar 17 and the upper connector 11 being perpendicular to each other. In alternative embodiments, the reinforcing bar and the stud can be used interchangeably, or other connecting nails, connectors, connecting structures, or limiting structures can be used as substitutes.

[0046] In this embodiment, an upper module floor slab 13 is provided on the upper module frame column 2, and a lower module floor slab 14 is provided on the lower module frame column 1. Specifically, an upper module base plate 15, which is fixedly connected to the corresponding upper module frame column 2, is fixedly provided between the upper module floor slab 13 and the corresponding upper module bottom frame beam 5. This arrangement allows for communication and connection between the upper module floor slab 13, the upper module bottom frame beam 5, and the upper module frame beam through the upper module base plate 15, thereby improving the overall integrity of the upper module and strengthening the connection between modules on the same floor. Similarly, a lower module top plate 16, which is fixedly connected to the corresponding lower module frame column 1, is fixedly provided between the lower module floor slab 14 and the corresponding lower module top frame beam 4. This arrangement allows for communication and connection between the lower module floor slab 14, the lower module top frame beam 4, and the lower module frame beam through the lower module base plate, thereby improving the overall integrity of the lower module and strengthening the connection between modules on the same floor.

[0047] Specifically, both the upper module base plate 15 and the lower module top plate 16 are made using grouting. This design, using grouting to make the upper module base plate 15 and the lower module top plate 16, can effectively fill the gaps between the connecting structures, and can ensure the load-bearing capacity of the unit module while reducing the amount of steel used, and can also meet higher load-bearing capacity requirements with a smaller cross-section.

[0048] In this embodiment, the modular building connection node assembly structure of this application further includes the following construction steps:

[0049] S1: Install the lower module of the module and fill the gaps between the modules with PE grouting rods or PE grouting strips for grouting treatment;

[0050] S2: Install two lower module frame columns 1;

[0051] S3: Fill the space between the two lower module frame columns 1 with PE plugging rods or PE plugging strips;

[0052] S4: Install two upper module frame columns 2;

[0053] S5: Fill the space between the two upper module frame columns 2 with PE plugging rods or PE plugging strips;

[0054] S6: Install the lower module top frame beam 4 on the top of the side wall of the two lower module frame columns 1;

[0055] S7: Fill the space between the top frame beams 4 of the two lower modules with PE grouting rods or PE grouting strips;

[0056] S8: Install the bottom frame beams 5 of the upper module at the bottom of the side walls of the two upper module frame columns 2. The two bottom frame beams 5 of the upper module are C-shaped and set opposite to each other, thus forming a through grouting space 9.

[0057] S9: Fill the space between the two upper module bottom frame beams 5 with PE grouting rods or PE grouting strips;

[0058] S10: Horizontal studs fixed to the bottom frame beam 5 of the upper module, vertical studs fixed to the top frame beam of the lower module, longitudinal steel bars 17 and reinforcing bars 12 fixed to the frame column 2 of the upper module are respectively installed in the grouting space 9.

[0059] S11: Pour concrete into the grouting space 9. After the concrete flows out, it forms the upper module base plate above the grouting space 9.

[0060] In summary, this modular building connection node combination structure, by setting a first grout-sealing structure 6 between the bottom frame beams 5 of the two upper modules, can fill the node gaps on the left and right sides of the upper module, thereby improving the cold bridge effect; by setting a second grout-sealing structure 7 between the top frame beams 4 of the two lower modules, it can fill the node gaps on the left and right sides of the lower module, improving the node cold bridge effect; by setting a third grout-sealing structure 8 between the bottom frame beam 5 of the upper module and the corresponding top frame beam 4 of the lower module, it can fill the node gaps between the upper and lower modules, improving the cold bridge effect between the connection nodes of the upper and lower modules; through the first grout-sealing structure 6, the second grout-sealing structure 7, and the third grout-sealing structure 8, the gaps between beams are filled, improving the overall structural performance and effectively improving the existing problems of cold bridge, fire prevention, wind resistance, and insect prevention.

[0061] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A modular building connection node combination structure, characterized in that, The system includes two lower module frame columns (1) arranged side by side and spaced apart, two upper module frame columns (2) respectively set on top of the two lower module frame columns (1), and upper and lower module connecting plates (3) connecting the two upper module frame columns (2) and the two lower module frame columns (1); a lower module top frame beam (4) is provided on the top of one side of each of the two lower module frame columns (1); an upper module bottom frame beam (5) is provided on the top of one side of each of the two upper module frame columns (2) near the lower module top frame beam (4); the two upper module bottom frame beams (5) are respectively set above the two lower module top frame beams (4); a first grout blocking structure (6) is provided between the two upper module bottom frame beams (5), a second grout blocking structure (7) is provided between the two lower module top frame beams (4); and a third grout blocking structure (8) is provided between the upper module bottom frame beam (5) and the corresponding lower module top frame beam (4).

2. The modular building connection node combination structure according to claim 1, characterized in that, The two upper bottom frame beams are arranged opposite each other in a C-shape. A grouting space (9) suitable for pouring concrete is provided between the two upper module bottom frame beams (5). A lower connector (10) with one end extending into the grouting space (9) is provided on the lower module top frame beam (4). An upper connector (11) with one end extending into the grouting space (9) is provided on the upper module bottom frame beam (5).

3. The modular building connection node combination structure according to claim 2, characterized in that, Both the upper connector (11) and the lower connector (10) are connecting studs, and the diameter of one end of the connecting stud located in the injection space (9) is larger than the diameter of the other end.

4. The modular building connection node combination structure according to claim 2, characterized in that, The top of each of the two upper bottom frame beams is provided with reinforcing bars (12) that are fixedly connected to the upper module frame column (2).

5. The modular building connection node combination structure according to claim 1, characterized in that, The two upper module frame columns (2) are respectively positioned directly above the two lower module frame columns (1), and the top of the lower module top frame beam (4) is flush with the top of the lower module frame column (1).

6. The modular building connection node combination structure according to claim 1, characterized in that, The upper module frame column (2) is provided with an upper module floor slab (13), and the lower module frame column (1) is provided with a lower module floor slab (14).

7. The modular building connection node combination structure according to claim 6, characterized in that, The upper module floor slab (13) and the corresponding upper module bottom frame beam (5) are fixedly provided with an upper module bottom plate (15) that is fixedly connected to the corresponding upper module frame column (2).

8. The modular building connection node combination structure according to claim 7, characterized in that, The lower module floor slab (14) and the corresponding lower module top frame beam (4) are fixedly provided with a lower module top plate (16) that is fixedly connected to the corresponding lower module frame column (1).

9. The modular building connection node combination structure according to claim 8, characterized in that, Both the upper module bottom plate (15) and the lower module top plate (16) are made by grouting.

10. The modular building connection node combination structure according to claim 1, characterized in that, The first grouting structure (6), the second grouting structure (7), and the third grouting structure (8) are all made of PE grouting material.

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