Novel modular combination node

Abstract

The utility model relates to a novel modularized combined node, and belongs to the technical field of building construction. Comprising supporting assemblies which are vertically symmetrical and a connecting assembly arranged between the supporting assemblies, the connecting assembly comprises a horizontal connecting plate, a plurality of corner connecting pieces and fastening bolts, the horizontal connecting plate is arranged in a square shape, the corner connecting pieces are evenly distributed on the upper side and the lower side of the horizontal connecting plate, and each corner connecting piece comprises a first part and a second part; the second part is perpendicular to the first part, the first part is connected with the horizontal connecting plate, the second part is connected with the supporting assembly, and the horizontal connecting plate, the corner connecting piece and the supporting assembly are connected through fastening bolts. The connecting structure is safe and reliable in connection, and the overall connecting rigidity is enhanced.

Description

Technical Field

[0001] The utility model relates to a novel modular combination node and belongs to the technical field of building construction. Background Art

[0002] At present, modular buildings are favored for their fast, flexible and energy-saving characteristics. The demand and market size of modular buildings continue to expand, especially in the field of residential buildings, where modular buildings are increasingly widely used. However, the development of modular buildings also faces some challenges and problems. For example, the standardized design, industrialized production and assembly construction of modular buildings need to be further improved, especially in the safety of modular structures with different connection structures, which urgently needs in-depth research.

[0003] In the modular steel structure stacking system, the internal beam-column nodes of the module units are mainly welded connections. The welded connections have problems such as uncontrollable residual stress, high requirements for on-site installation, and serious stress concentration. Therefore, the existing node forms are prone to brittle failure caused by fractures of welds or steel columns, which seriously affects the seismic performance of the module units and the module structure as a whole, and it is difficult to meet the safety requirements of full assembly modularization. The connection and installation between module units are mostly bolted connections. When subjected to large horizontal loads during use, the bolted connections will have slippage caused by loosening of the tension bolts, which can easily lead to horizontal displacement between the upper and lower steel columns or modules, resulting in increased lateral deformation of the overall structure and reduced lateral stiffness of the overall structure. At the same time, due to the influence of the connection structure, there is often a large gap between the upper and lower steel columns or steel beams between the module units, which seriously affects the coordinated force and deformation performance between the module units. In addition, in the modular steel structure stacking system, the interior of the container module unit is mostly in a state of fine decoration or simple decoration. During the installation process, due to the presence of floor slabs and wall panels, there is a lack of space for node installation operations, resulting in serious limitations on many connection structures during the installation process, such as bolt-sealing plate connection, prestressed connection or flat plate pin connection. At the same time, the existing nodes are difficult to be applied to corner columns, side columns, and middle columns at the same time, which seriously affects the normal connection of nodes or affects normal decoration.

[0004] In summary, the current modular steel structure stacking box system is difficult to meet the needs of high-rise and super-high-rise building structural systems in seismic areas. Therefore, the research and development of high-performance new modular steel-concrete composite structure stacking box system has become an inevitable trend of development. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to overcome the deficiencies of the prior art and to provide a new modular combination node with safe and reliable connection and enhanced overall connection stiffness and earthquake resistance.

[0006] The utility model discloses a novel modular combination node, comprising a vertically symmetrical support assembly and a connection assembly disposed between the support assemblies, wherein the connection assembly comprises a horizontal connection plate, a plurality of angle connectors and fastening bolts, wherein the horizontal connection plate is arranged in a square shape, and the angle connectors are evenly distributed on both sides of the horizontal connection plate. The angle connectors comprise a first part and a second part, wherein the first part is in a horizontal direction, and the second part is arranged vertically with the first part, the first part is connected to the horizontal connection plate, and the second part is connected to the support assembly, and the horizontal connection plate, the angle connectors and the support assembly are all connected by fastening bolts. By arranging the horizontal connection plate, the angle connectors and the fastening bolts, the vertically symmetrical support assemblies are connected together, thereby enhancing the strength of the connection between the support assemblies. The angle connectors are simple in structure, and not only have the function of connecting the support assemblies and transferring the horizontal load, but also have the function of positioning, thereby enhancing the integrity of the node.

[0007] The fastening bolts are high-strength bolts, which have stronger shear resistance.

[0008] The support assembly includes a connecting column, an outer sleeve at the column end, a crossbeam, a beam partition and an inner sleeve at the beam end. The cross section of the connecting column is L-shaped. A groove is provided at one end of the connecting column close to the horizontal connecting plate. The outer sleeve at the column end is welded to the groove edge of the connecting column. The beam partition is placed at one end of the crossbeam close to the outer sleeve at the column end. The inner sleeve at the beam end is connected to the crossbeam through the beam partition. The inner sleeve at the beam end is inserted into the outer sleeve at the column end. The crossbeam is connected to the connecting column through the inner sleeve at the beam end. The cross section of the connecting column is L-shaped, which is adapted to the shape of the module unit and increases the contact area with the module unit. The connection between the crossbeam and the connecting column is realized by arranging the outer sleeve at the column end and the inner sleeve at the beam end. The connection between the crossbeam and the connecting column is safe and reliable by inserting the inner sleeve at the beam end into the outer sleeve at the column end. The reliable connection between the crossbeam and the inner sleeve at the beam end is realized by arranging the beam partition.

[0009] The column end outer sleeve is connected to the edge of the connecting column groove by welding.

[0010] The cross beam and the beam partition, the beam partition and the inner sleeve at the beam end, and the cross beam and the outer sleeve at the column end are all connected by welding.

[0011] The connecting column is hollow inside, and a through groove is set on the horizontal connecting plate corresponding to the connecting column. The through groove is set in an L shape, and ultra-high performance concrete is poured in the connecting column. By setting a through groove on the horizontal connecting plate, the upper and lower connecting columns are connected, and ultra-high performance concrete is injected from the upper connecting column. The ultra-high performance concrete will fill the entire connecting column and the outer sleeve of the column end to form a new node as a whole, further enhancing the rigidity and strength of the outer sleeve of the column end. The plastic hinge is moved outward to avoid the fracture and damage of the weld between the beam and the outer sleeve of the column end. The high fluidity, self-compactness and high strength characteristics of ultra-high performance concrete connect the beams and columns of the modular composite node into a whole.

[0012] The top of the column end outer sleeve is arranged higher than the top of the connecting column, and the outer periphery of the horizontal connecting plate abuts against the column end outer sleeve in the horizontal direction. By arranging the top of the column end outer sleeve higher than the top of the connecting column, when the horizontal connecting plate is installed, the four sides of the horizontal connecting plate abut against the column end outer sleeve in the horizontal direction respectively, thereby limiting the horizontal connecting plate and effectively preventing the connecting column from moving horizontally.

[0013] The through groove size on the horizontal connecting plate is smaller than the inner diameter size of the connecting column, so that the post-cast ultra-high performance concrete of the upper and lower connecting columns can form a shearing effect at the horizontal interface, ensuring the coordinated force and deformation performance of the overall module node.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) The utility model connects the upper and lower symmetrical support components together by providing a horizontal connecting plate, an angle connector and a fastening bolt, thereby strengthening the strength of the connection between the support components and enhancing the overall connection rigidity.

[0016] (2) The support assembly includes a connecting column, an outer sleeve at the column end, a cross beam, a beam partition and an inner sleeve at the beam end. The cross section of the connecting column is L-shaped. A groove is provided at one end of the connecting column close to the horizontal connecting plate. The outer sleeve at the column end is welded to the edge of the groove of the connecting column. The beam partition is placed at one end of the cross beam close to the outer sleeve at the column end. The inner sleeve at the beam end is connected to the cross beam through the beam partition. The inner sleeve at the beam end is inserted into the outer sleeve at the column end. The cross beam is connected to the connecting column through the inner sleeve at the beam end. The cross section of the connecting column is L-shaped, which is adapted to the shape of the module unit and increases the contact area with the module unit. The connection between the cross beam and the connecting column is realized by providing the outer sleeve at the column end and the inner sleeve at the beam end. The connection between the cross beam and the connecting column is safe and reliable by inserting the inner sleeve at the beam end into the outer sleeve at the column end. The reliable connection between the cross beam and the inner sleeve at the beam end is realized by providing the beam partition.

[0017] (3) The top of the outer sleeve at the column end is arranged higher than the top of the connecting column, and the outer periphery of the horizontal connecting plate abuts against the outer sleeve at the column end in the horizontal direction. By arranging the top of the outer sleeve at the column end higher than the top of the connecting column, when the horizontal connecting plate is installed, the four sides of the horizontal connecting plate abut against the outer sleeve at the column end in the horizontal direction, thereby limiting the position of the horizontal connecting plate and effectively preventing the connecting column from moving horizontally. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the explosion structure of Example 1 of the utility model;

[0019] Figure 2 It is a schematic diagram of the top view of the structure of Embodiment 1 of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the utility model;

[0021] Figure 4 It is a schematic diagram of the structure after installation of Example 1 of the utility model.

[0022] In the figure: 1. bolt hole; 2. fastening bolt; 3. ultra-high performance concrete; 4. cross beam; 5. beam partition; 6. inner sleeve at beam end; 7. groove; 8. connecting column; 9. outer sleeve at column end; 10. horizontal connecting plate; 11. corner connector; 12. through groove. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with embodiments:

[0024] Example 1

[0025] like Figure 1 to Figure 4 As shown, a new modular combination node described in the utility model includes a support assembly that is symmetrical in the upper and lower directions and a connection assembly placed between the support assemblies, the connection assembly includes a horizontal connection plate 10, a plurality of angle connectors 11 and fastening bolts 2, the fastening bolts 2 are high-strength bolts or tension bolts; the horizontal connection plate 10 is arranged in a square shape, and the angle connectors 11 are evenly distributed on the upper and lower sides of the horizontal connection plate 10, the angle connectors 11 include a first part and a second part, the first part is horizontal, and the second part is arranged vertically with the first part, the first part is connected to the horizontal connection plate 10, and the second part is connected to the support assembly, and the horizontal connection plate 10, the angle connectors 11 and the support assembly are all connected by fastening bolts 2.

[0026] The supporting assembly includes a connecting column 8, an outer sleeve 9 at the column end, a cross beam 4, a beam partition 5 and an inner sleeve 6 at the beam end. The cross section of the connecting column 8 is L-shaped. The connecting column 8 is a steel column. A groove 7 is provided at one end of the connecting column 8 close to the horizontal connecting plate 10. A bolt hole 1 is also provided on the connecting column 8, and a fastening bolt 2 passes through the bolt hole 1. The fastening bolt 2 here is a tension bolt, which connects the corner connector 11 and the connecting column 8.

[0027] The outer sleeve 9 at the column end is connected to the edge of the groove 7 of the connecting column 8. The beam partition 5 is placed at one end of the cross beam 4 close to the outer sleeve 9 at the column end. The cross beam 4 is a groove-shaped steel beam. The inner sleeve 6 at the beam end is connected to the cross beam 4 through the beam partition 5. The inner sleeve 6 at the beam end is inserted into the outer sleeve 9 at the column end, and the cross beam 4 is connected to the connecting column 8 through the inner sleeve 6 at the beam end. The beam partition 5 serves as a blocking plate for the outer sleeve 9 at the column end and also as a stiffening rib of the groove-shaped steel beam. The thickness of the side of the outer sleeve 9 at the column end in contact with the horizontal connecting plate 10 is relatively large. The cross beam 4 has a cross section height that is consistent with the outer sleeve 9 at the column end.

[0028] The column end outer sleeve 9 is welded to the connecting column 8. The cross beam 4 and the beam partition 5, the beam partition 5 and the beam end inner sleeve 6, and the cross beam 4 and the column end outer sleeve 9 are all connected by welding.

[0029] The interior of the connecting column 8 is hollow, and a through groove 12 is provided on the horizontal connecting plate 10 corresponding to the connecting column 8. The through groove 12 is provided in an L-shaped manner, and ultra-high performance concrete 3 is poured in the connecting column 8. By providing the through groove 12 on the horizontal connecting plate 10, the upper and lower connecting columns 8 are connected, and the ultra-high performance concrete 3 is injected from the upper connecting column 8. The ultra-high performance concrete 3 will fill the entire connecting column 8 and the outer sleeve 9 at the column end to form a new type of node as a whole. After the ultra-high performance concrete 3 is poured, it can form a whole with the tension bolts, which can effectively improve the force performance of the connecting column 8 itself and the core area of ​​the node, and significantly improve the overall performance of the connection between the upper and lower connecting columns 8 and the crossbeam 4.

[0030] The top of the column end outer sleeve 9 is higher than the top of the connecting column 8, and the horizontal connecting plate 10 is inserted into the top of the connecting column 8. The through slot 12 on the horizontal connecting plate 10 is smaller than the inner diameter of the connecting column 8.

[0031] Installation process: First, the L-shaped steel column, the channel steel beam, the column end outer sleeve 9, the beam end inner sleeve 6, the horizontal connecting plate 10, the beam partition 5, and the angle connector are processed in the factory. Then, the L-shaped steel column is connected to the column end outer sleeve 9 by welding in the factory, and the beam partition 5, the beam end inner sleeve 6 and the channel steel beam are connected by welding. The beam end inner sleeve 6 is inserted into the column end outer sleeve 9, and the L-shaped steel column and the channel steel beam are connected by welding along the beam partition 5 to form a whole. Then, after the components are transported to the site, the lower 4 L-shaped steel columns are fixed first, and then the horizontal connecting plate 10 is used to limit the position, and the lower angle connector and tension bolts are fixed. Then, the upper 4 L-shaped steel columns are installed and fixed by the upper angle connector and tension bolts. At the same time, the upper L-shaped steel columns must be limited and clamped with the horizontal connecting plate 10, and finally the horizontal connecting plate 10 and the upper and lower angle connectors are connected by high-strength bolts. Finally, pour the ultra-high performance concrete 3. After the assembly of each corner node is completed, pour the ultra-high performance concrete 3 in the upper L-shaped steel column. The later poured ultra-high performance concrete 3 will fill the entire L-shaped steel column and the outer sleeve 9 at the column end to form a new node as a whole.

[0032] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. A new modular combination node, characterized in that: The invention comprises a support assembly which is symmetrical in the upper and lower parts and a connection assembly arranged between the support assemblies, wherein the connection assembly comprises a horizontal connection plate (10), a plurality of corner connections (11) and fastening bolts (2), wherein the horizontal connection plate (10) is arranged in a square shape, and the corner connections (11) are evenly distributed on the upper and lower sides of the horizontal connection plate (10), and the corner connections (11) comprise a first part and a second part, wherein the first part is in a horizontal direction and the second part is arranged perpendicular to the first part, the first part is connected to the horizontal connection plate (10), and the second part is connected to the support assembly, and the horizontal connection plate (10), the corner connections (11) and the support assembly are all connected by fastening bolts (2).

2. The novel modular combined node according to claim 1 is characterized in that: The fastening bolts (2) are high-strength bolts.

3. The novel modular combined node according to claim 1 or 2, characterized in that: The support assembly comprises a connecting column (8), a column end outer sleeve (9), a cross beam (4), a beam partition (5) and a beam end inner sleeve (6); the connecting column (8) has an L-shaped cross section; a groove (7) is arranged at one end of the connecting column (8) close to the horizontal connecting plate (10); the column end outer sleeve (9) is connected to the edge of the groove (7) of the connecting column (8); the beam partition (5) is arranged at one end of the cross beam (4) close to the column end outer sleeve (9); the beam end inner sleeve (6) is connected to the cross beam (4) through the beam partition (5); the beam end inner sleeve (6) is inserted into the column end outer sleeve (9); and the cross beam (4) is connected to the connecting column (8) through the beam end inner sleeve (6).

4. The novel modular combined node according to claim 3 is characterized in that: The column end outer sleeve (9) is welded to the edge of the groove (7) of the connecting column (8).

5. The novel modular combined node according to claim 4 is characterized in that: The cross beam (4) and the beam partition (5), the beam partition (5) and the inner sleeve (6) at the beam end, and the cross beam (4) and the outer sleeve (9) at the column end are all connected by welding.

6. The novel modular combined node according to claim 5 is characterized in that: The interior of the connecting column (8) is hollow, a through groove (12) is arranged on the horizontal connecting plate (10) corresponding to the connecting column (8), the through groove (12) is arranged in an L shape, and ultra-high performance concrete (3) is poured in the connecting column (8).

7. The novel modular combined node according to claim 6, characterized in that: The top of the column end outer sleeve (9) is arranged higher than the top of the connecting column (8), and the outer periphery of the horizontal connecting plate (10) abuts against the column end outer sleeve (9) in the horizontal direction.

8. The novel modular combined node according to claim 7, characterized in that: The size of the through slot (12) on the horizontal connecting plate (10) is smaller than the inner diameter of the connecting column (8).

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