Staggered and stacked concrete module structure system and connecting joint thereof

Abstract

The utility model provides a staggered and stacked concrete module structure system and a connecting joint thereof. The connecting joint comprises a first connecting piece and a second connecting piece which are the same in structure and can be connected in an inserted mode. Each of the first connecting piece and the second connecting piece comprises a connecting plate, an inserting block and an inserting cylinder which are fixed on one side surface of the connecting plate at an interval, and first anchoring profile steel fixed on the outer wall surfaces of two adjacent side walls of the inserting cylinder; the cross sections of the inserting block and the inserting cylinder are C-shaped; the inserting block of the first connecting piece is inserted into the inserting cylinder of the second connecting piece to form a first grouting space, and the inserting block of the second connecting piece is inserted into the inserting cylinder of the first connecting piece to form a second grouting space; a buffer space is formed between the inserting cylinder of the first connecting piece and the inserting cylinder of the second connecting piece; and the first anchoring section steel is anchored with the module beam. According to the connecting joint, the C-shaped inserting blocks and the C-shaped inserting cylinders are adopted, the bending moment of the module columns can be better transmitted, and the anti-seismic performance and safety are improved.

Description

Technical Field

[0001] The present application belongs to the technical field of modular building structures, and more specifically, relates to a staggered stacked concrete module structural system and its connection nodes. Background Art

[0002] With the industrial transformation and upgrading of the construction industry, prefabricated buildings such as modular buildings have received more and more attention. Modular concrete structures are the latest research results in the field of prefabricated concrete structures. The existing connection methods are difficult to meet the stiffness and bearing capacity requirements of the connection nodes, and the existing connection methods are basically for steel structure modular buildings, which are difficult to apply to prefabricated concrete structures. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a staggered stacked concrete module structural system and its connection nodes with strong bearing capacity and good seismic performance.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the present application is: to provide a connection node of a staggered stacked concrete module structural system, comprising a first connection member and a second connection member of the same structure and capable of being plugged into each other; the first connection member and the second connection member each comprise a connection plate, a plug-in block and a plug-in cylinder fixed at intervals on one side of the connection plate, and a first anchoring steel fixed on the outer wall surface of the adjacent two side walls of the plug-in cylinder;

[0005] Among them, the cross-sections of the plug-in block and the plug-in tube are both C-shaped, and the recessed parts on the sides of the two are arranged opposite to each other; the first grouting space is formed after the plug-in block of the first connecting member is plugged into the plug-in tube of the second connecting member, and the second grouting space is formed after the plug-in block of the second connecting member is plugged into the plug-in tube of the first connecting member; a buffer space is formed between the plug-in tube of the first connecting member and the plug-in tube of the second connecting member; the first anchoring steel type is used for anchoring with the module beam.

[0006] In one embodiment, the plug-in tube includes a first side wall, a second side wall respectively connected to the two ends of the first side wall, and a third side wall connected between the two second side walls, and the first anchoring steel is fixed on the outer wall surface of the first side wall and the outer wall surface of one of the second side walls; the middle position of the third side wall is bent and recessed toward the direction of the first side wall to form a groove.

[0007] In one embodiment, the connecting plate is a square plate body, the length of the first side wall is equal to the length of the connecting plate, and the outer wall surface of the first side wall is flush with the side wall of the connecting plate.

[0008] In one embodiment, the opening of the plug-in block is arranged opposite to the opening of the side surface of the groove, and the length of the plug-in block is greater than the length of the groove.

[0009] In one embodiment, the side wall of the plug-in block is provided with a plurality of first anti-shear bolts, and the inner wall of the plug-in tube is provided with a plurality of second anti-shear bolts, the plurality of first anti-shear bolts are arranged in a plurality of vertical columns on the side of the plug-in block, and the plurality of second anti-shear bolts are arranged in a plurality of vertical columns on the inner wall of the plug-in tube, and the vertical columns formed by the first anti-shear bolts and the vertical columns formed by the second anti-shear bolts are staggered in the horizontal direction.

[0010] In one embodiment, a positioning block is provided at a corner of the plug-in barrel near the insertion port, so that the first anti-shear bolt and the second anti-shear bolt do not interfere with each other when the plug-in block is inserted into the plug-in barrel.

[0011] In one embodiment, the height of the plug-in block is less than the height of the plug-in barrel; or, the height of the plug-in block is equal to the height of the plug-in barrel, and the plug-in block is provided with at least one flow hole.

[0012] In one embodiment, a second anchoring steel is fixed to the center of the other side of the connecting plate away from the plug-in tube, and the second anchoring steel is used for anchoring with the module column.

[0013] In one embodiment, a plurality of third shear bolts are disposed on the first anchoring steel and the second anchoring steel.

[0014] A staggered stacked concrete module structural system comprises module columns, module beams and the above-mentioned connection nodes, wherein the first anchoring steel is anchored in the module beams.

[0015] The beneficial effects of the connection nodes of the staggered stacked concrete module structural system provided by the present application are as follows: compared with the prior art, the connection nodes of the staggered stacked concrete module structural system of the present application, the first connecting member and the second connecting member can be mass-produced by casting, which meets the requirements of building industrialization; the C-shaped plug-in block and the plug-in tube completely correspond to the cross-section of the module column after being plugged in, and can achieve the same strength as the connected column in tension and bending, better transfer the bending moment of the module column, and improve the seismic performance and safety of the modular structure; at the same time, a buffer space is formed between the two C-shaped plug-in tubes, which can buffer the vertical load applied by the module column to the upper and lower connecting members, bear a larger vertical load, and ensure the stable bearing capacity of the staggered stacked concrete module structural system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 A three-dimensional diagram of a connection node provided in an embodiment of the present application;

[0018] Figure 2 Explosion of connected nodes Figure 1 ;

[0019] Figure 3 Explosion of connected nodes Figure 2 ;

[0020] Figure 4 for Figure 1 A longitudinal section view of the connection node shown;

[0021] Figure 5 for Figure 1 a perspective cutaway view of the connection node shown;

[0022] Figure 6 for Figure 1 a side view of a second connector in the illustrated connection node;

[0023] Figure 7 for Figure 6 A top view of the second connecting member shown;

[0024] Figure 8 for Figure 1 A schematic diagram of a portion of the structure of the connection nodes shown;

[0025] Fig. 9 for Figure 1 a transverse cross-sectional view of the connection node shown;

[0026] Fig.10 Schematic diagram of the connection between the first connecting member and the module column and module beam Figure 1 ;

[0027] Fig.11 Schematic diagram of the connection between the first connecting member and the module column and module beam Figure 2 ;

[0028] Fig.12 It is a schematic diagram of the connection between the connection node and the module column and module beam;

[0029] Fig.13 It is a schematic diagram of the structure before the rectangular module unit is assembled;

[0030] Fig.14It is a schematic diagram of the structure after the rectangular module unit is assembled;

[0031] Fig.15 It is a side view of the rectangular module units before stacking;

[0032] Fig.16 It is a side view of the stacked rectangular module units;

[0033] Fig.17 A schematic structural diagram of the staggered stacked concrete module structural system provided in an embodiment of the present application.

[0034] Among them, the reference numerals in the figure are:

[0035] 10-staggered stacked concrete module structural system; 20-connection node; 11-rectangular module unit; 12-module column; 13-module beam; 14-rebar cage; 141-rebar; 21-first connecting piece; 22-second connecting piece; 210-connecting plate; 220-plug-in block; 230-plug-in cylinder; 201-first grouting space; 202-second grouting space; 203-buffer space; 23-first anchoring steel; 24-second anchoring steel; 25-third shear bolt; 221-first shear bolt; 231-first side wall; 232-second side wall; 233-third side wall; 234-groove; 235-second shear bolt; 236-positioning block; 237-slurry inlet pipe; 238-discharge pipe. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0037] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0038] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, 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 the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] Please also read Figures 1 to 3 , the connection node 20 of the staggered stacked concrete module structural system provided by the embodiment of the present application is now described. The connection node 20 includes a first connection member 21 and a second connection member 22. The first connection member 21 and the second connection member 22 have the same structure and can be plugged into each other. The first connection member 21 and the second connection member 22 can be mass-cast and produced in a factory to meet the requirements of building industrialization.

[0041] Combined with reference Figure 2 , Figure 3 and Fig.12 , the first connector 21 and the second connector 22 each include a connecting plate 210, a plug-in block 220, a plug-in tube 230 and a plurality of first anchoring steels 23. The connecting plate 210 may be a rectangular plate or a square plate. The plug-in block 220 and the plug-in tube 230 are welded and fixed at intervals on one side of the connecting plate 210, and the cross-sections of the plug-in block 220 and the plug-in tube 230 are both C-shaped. After the first connector 21 and the second connector 22 are plugged in, the cross-section of the C-shaped plug-in block 220 corresponds to the module column 12, and the cross-section of the C-shaped plug-in tube 230 corresponds to the connecting plate 210, which is beneficial to the direct transfer of loads of the module column 12, and can achieve the same strength as the connected column in tension and bending, better transfer the bending moment of the module column 12, and improve the seismic performance and safety of the modular structure. Preferably, the recessed parts on the sides of the plug-in block 220 and the plug-in tube 230 are arranged opposite to each other, so that when a C-shaped plug-in tube 230 is used, after the first connector 21 and the second connector 22 are plugged in, a buffer space 203 is formed between the plug-in tube 230 of the first connector 21 and the plug-in tube 230 of the second connector 22, that is, a larger buffer space 203 is obtained, which can buffer the vertical load applied by the module column 12 on the upper and lower connectors, carry a larger vertical load, and ensure the stable bearing capacity of the staggered stacked concrete module structural system 10. Compared with the square plug-in tube 230, after the C-shaped plug-in tube 230 is used, a larger buffer space 203 is formed between the two plug-in tubes 230 after plugging, which can buffer the vertical load and improve the bearing capacity.

[0042] The outer wall surfaces of the adjacent two side walls of the plug-in barrel 230 are respectively provided with first anchoring steels 23, and the first anchoring steels 23 are used to anchor with the module beam 13, so that the first connecting member 21 and the second connecting member 22 are connected with the module beam 13 through the first anchoring steels 23. The first anchoring steels 23 can be made of H-shaped or other shaped steel. The first anchoring steels 23 can be fixed to the plug-in barrel 230 by welding.

[0043] See also Figures 3 to 5 For the convenience of description, the connector located at the upper side is defined as the first connector 21, and the connector located at the lower side is defined as the second connector 22. The first grouting space 201 is formed after the plug-in block 220 of the first connector 21 is plugged into the plug-in barrel 230 of the second connector 22, and the second grouting space 202 is formed after the plug-in block 220 of the second connector 22 is plugged into the plug-in barrel 230 of the first connector 21. After the first connector 21 and the second connector 22 are plugged, grout is poured into the first grouting space 201 and the second grouting space 202, and a stable connection structure is formed after the grout is solidified.

[0044] Compared with the prior art, the connection node 20 of the staggered stacked concrete module structural system provided in the present application can be mass-produced by casting the first connecting member 21 and the second connecting member 22, which meets the requirements of building industrialization. After the C-shaped plug-in block 220 and the plug-in tube 230 are plugged in, they completely correspond to the cross-section of the module column 12, and can achieve the same strength as the connected column in tension and bending, better transfer the bending moment of the module column 12, and improve the seismic performance and safety of the modular structure; at the same time, a buffer space 203 is formed between the two C-shaped plug-in tubes 230, which can buffer the vertical load applied by the module column 12 to the upper and lower connecting members, bear a larger vertical load, and ensure the stable bearing capacity of the staggered stacked concrete module structural system 10.

[0045] See also Figure 2 , Figures 6 to 9 The plug-in barrel 230 includes a first side wall 231, second side walls 232 respectively connected to both ends of the first side wall 231, and a third side wall 233 connected between the two second side walls 232. The two second side walls 232 are arranged in parallel, and the middle of the third side wall 233 is bent and recessed toward the first side wall 231 to form a groove 234, that is, the groove 234 is a groove body with openings on both sides, one end of the groove body and the side close to the plug-in block 220 are open, and the cross section of the groove body is a rectangular with missing edges, so that the plug-in barrel 230 is a C-shaped structure as a whole.

[0046] The connecting plate 210 adopts a square plate body. The length of the first side wall 231 of the plug-in barrel 230 is set to be equal to the length of the connecting plate 210, the outer wall surface of the first side wall 231 is flush with the side wall of the connecting plate 210, and the length of the second side wall 232 is less than half the length of the connecting plate 210. The cross-sectional dimension of the connecting plate 210 is set to be equal to the cross-sectional dimension of the module column 12, so that the connecting plate 210 and the module column 12 form a structure with consistent external dimensions, and the connecting plate 210 does not protrude outside the module column 12. The overall structure is not only stable, but also beautiful in appearance. It can be understood that the length of the first side wall 231 of the plug-in barrel 230 can also be set to be slightly smaller than the length of the connecting plate 210.

[0047] The opening of the plug block 220 on the same connecting plate 210 is arranged opposite to the opening of the plug barrel 230, that is, the opening of the plug block 220 is arranged opposite to the opening of the side of the groove 234. The length of the plug block 220 is less than the length of the connecting plate 210, and the length of the plug block 220 is set to be greater than the length of the groove 234 of the third side wall 233. The width of the plug block 220 is less than half the width of the connecting plate 210.

[0048] One of the first anchoring steels 23 is welded to the outer wall surface of the first side wall 231, and one of the second side walls 232 is provided with a first anchoring steel 23. A second anchoring steel 24 is fixed to the other side of the connecting plate 210 away from the plug-in cylinder 230. A second anchoring steel 24 is provided on the other side of the connecting plate 210 of the first connecting member 21 and / or on the other side of the connecting plate 210 of the second connecting member 22, and the second anchoring steel 24 is used to anchor with the module column 12. When the second connecting member 22 is located at the bottom of the concrete module structure system, the second anchoring steel 24 may not be provided on its connecting plate 210, but the second anchoring steel 24 is provided at other positions, and then anchored with the module column 12. Preferably, the second anchoring steel 24 can be fixed at the central position of the corresponding side of the connecting plate 210.

[0049] The side wall of the plug block 220 is provided with a plurality of first anti-shear bolts 221, and the inner side wall of the plug cylinder 230 is provided with a plurality of second anti-shear bolts 235, and the first anti-shear bolts 221 and the second anti-shear bolts 235 are arranged alternately. The first anti-shear bolts 221 and the second anti-shear bolts 235 can adopt the same structure, both including a circular plate and a connecting rod, one side of the circular plate is fixed to the connecting rod, the circular plate and the connecting rod are arranged coaxially, and the diameter of the circular plate is greater than the diameter of the connecting rod.

[0050] A plurality of first shear bolts 221 are arranged in a plurality of vertical rows on the side of the plug block 220, and a plurality of second shear bolts 235 are arranged in a plurality of vertical rows on the inner side wall of the plug tube 230. The vertical rows formed by the first shear bolts 221 and the vertical rows formed by the second shear bolts 235 are arranged alternately in the horizontal direction. The first connector 21 and the second connector 22 are plugged in and grouting is completed. After the grout solidifies, the two connectors are tightly connected. Since the first grouting space 201 and the second grouting space 202 contain the first shear bolts 221 and the second shear bolts 235, the reliability of the connection between the two connectors is improved.

[0051] See also Figure 2 , Figure 3 and Figure 8 , a positioning block 236 is provided at the corner of the plug-in barrel 230, and each positioning block 236 defines an insertion port of the plug-in block 220 of a size suitable for the first connector 21 and the second connector 22, so that the first shear bolt 221 and the second shear bolt 235 do not interfere with each other during the plug-in process of the first connector 21 and the second connector 22, that is, when the plug-in block 220 is inserted into the plug-in barrel 230. The provision of the positioning block 236 not only makes the plug-in operation between the first connector 21 and the second connector 22 smooth, reduces the difficulty of on-site construction, saves time and cost, but also improves the structural strength of the plug-in barrel 230. Specifically, a plurality of positioning blocks 236 are provided at intervals in the vertical direction at the corner of the first side wall 231 and the second side wall 232. In the second connector 22, there is a gap between the positioning block 236 at the top and the insertion port of the plug-in barrel 230, and there is a gap between the positioning block 236 at the bottom and the connecting plate 210. The cross section of the positioning block 236 is L-shaped. One side of the positioning block 236 is fixed to the plug-in tube 230 , and the other side of the positioning block 236 is used for positioning and inserting the plug-in block 220 .

[0052] See also Figures 7 to 9 The opening of the plug block 220 is arranged opposite to the opening of the plug cylinder 230. The opening of the plug block 220 is arranged opposite to the opening of the side of the groove 234, so that after the first connector 21 and the second connector 22 are plugged in, a large buffer space 203 is formed between the two plug cylinders 230, which can buffer the vertical load applied by the module column 12 on the upper and lower connectors, bear a large vertical load, and ensure the stable bearing capacity of the staggered stacked concrete module structural system 10.

[0053] It can be understood that the length of the plug-in barrel 230 can also be set to be less than or equal to the length of the connecting plate 210. When the connecting plate 210 adopts a square plate body, the length of the first side wall 231 of the plug-in barrel 230 is set to be equal to the length of the connecting plate 210, or it can be set to be less than the length of the connecting plate 210. When the connecting plate 210 adopts a rectangular plate, the length of the first side wall 231 of the plug-in barrel 230 is set to be equal to the side length of the corresponding side of the connecting plate 210, or it can be set to be less than the side length of the corresponding side of the connecting plate 210.

[0054] See also Figures 4 to 6 , the height of the plug-in block 220 is set to be less than the height of the plug-in tube 230, so that after the first connector 21 and the second connector 22 are plugged in, there is a gap between the plug-in block 220 of the first connector 21 and the connecting plate 210 of the second connector 22, and between the plug-in block 220 of the second connector 22 and the connecting plate 210 of the first connector 21, thereby forming a flow passage thereat, so that the grouting material on both sides of the plug-in block 220 can flow. Alternatively, the height of the plug-in block 220 is set to be equal to the height of the plug-in tube 230, and at least one flow hole is provided on the plug-in block 220, so that the grouting material in the first grouting space 201 separated by the plug-in block 220 can flow through the flow hole, and the grouting material in the second grouting space 202 separated by the plug-in block 220 can flow through the flow hole. When the flow hole is provided at the edge of the plug-in block 220, a gap is formed at the edge, so that the grouting material can also flow through the gap.

[0055] See also Figure 2 and Figure 3 , a plurality of third shear bolts 25 are provided on the first anchoring steel 23 and the second anchoring steel 24. Both the first anchoring steel 23 and the second anchoring steel 24 can be made of H-shaped steel. The third shear bolt 25, the first shear bolt 221 and the second shear bolt 235 can adopt the same structure. In this embodiment, the first anchoring steel 23 is made of H-shaped steel, and the second anchoring steel 24 is made of two cross-shaped H-shaped steels.

[0056] See also Figure 2 , Figure 3 The plug-in tube 230 is provided with a grouting hole and an overflow hole. The grouting hole is connected to the grouting pipe 237, and the overflow hole is connected to the discharge pipe 238. The grouting equipment is connected to the grouting pipe 237 to grout the first grouting space 201 and the second grouting space 202. After the slurry solidifies, a stable connection is formed between the two connecting parts.

[0057] Figures 10 to 12 The process of assembling the connection node 20 and the mold beam is shown. Fig.10 , Fig.11, anchor the two first anchoring steels 23 on the side of the first connecting member 21 to one end of the two cross beams respectively, and anchor the second anchoring steel 24 of the first connecting member 21 to one end of the module column 12, so as to complete the connection and fixation between the first connecting member 21 and the mold beam; similarly, the second connecting member 22 is connected and fixed to the mold beam in the same way, thereby forming the upper and lower modules to be assembled; refer to Fig.12 , place the upper and lower modules vertically, align the plug-in block 220 of the first connecting member 21 in the upper module with the plug-in tube 230 of the second connecting member 22 in the lower module, complete the plug-in operation, and then grout the grouting space in the plug-in tube 230 by grouting. After the grout solidifies, the stable connection between the connection node 20 and the formwork beam is completed.

[0058] See also Figure 4 , Fig.12 , Fig.17 The staggered stacked concrete module structural system 10 provided in the embodiment of the present application includes a module column 12, a module beam 13 and a connection node 20 as described in the above embodiment, a first anchoring steel 23 is anchored in the module beam 13, and a connection plate 210 is anchored in the module column 12. When the connection plate 210 is provided with a second anchoring steel 24, it is anchored in the module column 12 by the second anchoring steel 24, so that anchoring is achieved between the connection plate 210 and the module column 12. The connection between the connection node 20 and the formwork beam is completed by grouting in the first grouting space 201 and the second grouting space 202. Both the module column 12 and the module beam 13 are concrete structural members, and a steel cage 14 may be provided in the concrete formwork beam to increase the structural strength of the formwork beam; refer to Figure 2 and Fig.12 The module column 12 and the module beam 13 are both provided with a steel cage 14, and one end of the steel bar 141 of the steel cage 14 is welded to the plug-in tube 230. Fig.13 , Fig.14 The staggered stacked concrete module structural system 10 can be formed by stacking a plurality of rectangular module units 11 according to actual needs. Each rectangular module unit 11 includes eight module beams 13 and four module columns 12. That is, eight module beams 13 and four module columns 12 are connected and grouted through the first connector 21 and the second connector 22 to form a single rectangular module unit 11. Please refer to Figures 15 to 17 In the rectangular main structure formed by stacking, a double crossbeam structure is formed in two adjacent rectangular module units 11. It can be understood that the rectangular module units 11 can be adaptively increased according to the specific stacking requirements of the concrete module structure system. When the second connecting member 22 is located at the bottom of the concrete module structure system, the second anchoring steel 24 may not be provided on its connecting plate 210, while the second anchoring steel 24 is provided at other positions, and then anchored with the corresponding module column 12.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A connection node of a staggered stacked concrete module structural system, characterized in that: It comprises a first connecting member and a second connecting member of the same structure and capable of being plugged into each other; the first connecting member and the second connecting member each comprise a connecting plate, a plug-in block and a plug-in tube fixed at intervals on one side of the connecting plate, and a first anchoring steel fixed on the outer wall surfaces of the adjacent two side walls of the plug-in tube; Among them, the cross-sections of the plug-in block and the plug-in tube are both C-shaped, and the recessed parts on the sides of the two are arranged opposite to each other; the first grouting space is formed after the plug-in block of the first connecting member is plugged into the plug-in tube of the second connecting member, and the second grouting space is formed after the plug-in block of the second connecting member is plugged into the plug-in tube of the first connecting member; a buffer space is formed between the plug-in tube of the first connecting member and the plug-in tube of the second connecting member; the first anchoring steel type is used for anchoring with the module beam.

2. The connection node of the staggered stacked concrete module structural system according to claim 1, characterized in that: The plug-in tube includes a first side wall, second side walls respectively connected to the two ends of the first side wall, and a third side wall connected between the two second side walls. The first anchoring steel is fixed on the outer wall surface of the first side wall and the outer wall surface of one of the second side walls; the middle position of the third side wall is bent and recessed toward the direction of the first side wall to form a groove.

3. The connection node of the staggered stacked concrete module structural system according to claim 2, characterized in that: The connecting plate is a square plate body, the length of the first side wall is equal to the length of the connecting plate, and the outer wall surface of the first side wall is flush with the side wall of the connecting plate.

4. The connection node of the staggered stacked concrete module structural system according to claim 2, characterized in that: The opening of the plug-in block is arranged opposite to the opening of the side surface of the groove, and the length of the plug-in block is greater than the length of the groove.

5. The connection node of the staggered stacked concrete module structural system according to claim 1, characterized in that: The side wall of the plug-in block is provided with a plurality of first anti-shear bolts, and the inner wall of the plug-in tube is provided with a plurality of second anti-shear bolts. The plurality of first anti-shear bolts are arranged in a plurality of vertical columns on the side of the plug-in block, and the plurality of second anti-shear bolts are arranged in a plurality of vertical columns on the inner wall of the plug-in tube. The vertical columns formed by the first anti-shear bolts and the vertical columns formed by the second anti-shear bolts are staggered in the horizontal direction.

6. The connection node of the staggered stacked concrete module structural system according to claim 5, characterized in that: A positioning block is provided at a corner of the plug-in tube near the insertion port, so that the first anti-shear bolt and the second anti-shear bolt do not interfere with each other when the plug-in block is inserted into the plug-in tube.

7. The connection node of the staggered stacked concrete module structural system according to claim 1, characterized in that: The height of the plug-in block is smaller than the height of the plug-in tube; or, the height of the plug-in block is equal to the height of the plug-in tube, and the plug-in block is provided with at least one flow hole.

8. The connection node of the staggered stacked concrete module structural system according to claim 1, characterized in that: A second anchoring steel is fixed at the central position of the other side surface of the connecting plate away from the plug-in tube, and the second anchoring steel is used for anchoring with the module column.

9. The connection node of the staggered stacked concrete module structural system according to claim 8, characterized in that: A plurality of third shear bolts are disposed on the first anchoring steel and the second anchoring steel.

10. A staggered stacked concrete module structural system, characterized in that: It comprises a module column, a module beam and the connection node according to any one of claims 1 to 9, wherein the first anchoring steel is anchored in the module beam.

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