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 a horizontal connecting plate, a plurality of inner sleeves and fastening bolts, the horizontal connecting plate is arranged in a square shape, and the inner sleeves are installed on the upper side and the lower side of the horizontal connecting plate along a rectangular array; the supporting assembly comprises four square steel pipe columns, column end outer sleeves, cross beams and beam partition plates, the four square steel pipe columns are arranged in a rectangular array, the column end outer sleeves are arranged on the side walls, away from each other, of the adjacent square steel pipe columns, the column end outer sleeves communicate with the square steel pipe columns, one ends of the cross beams are inserted into the column end outer sleeves, and the other ends of the cross beams communicate with the beam partition plates. The beam partition plate is arranged on the cross beam and blocks the column end outer sleeve. According to the utility model, the purpose of efficient assembly of modular units is achieved, and the defects of residual stress, welding seam quality and the like caused by welding are overcome.

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] Modular buildings are buildings that are manufactured in factories according to drawings and assembled into individual modular units. The completed modules are then transported to the construction site and assembled into individual modular units through designed inter-module connections. In addition to the structure, modular units usually include wall panels, pipelines, interior decorations and other building water, heating and electrical facilities, and modular units can bear their own weight, transportation loads, and hoisting loads. Modular units realize the concept of "integration of architecture, structure, electromechanical, and decoration."

[0003] The connection between modules is the key point of earthquake resistance of modular structure buildings. When modular buildings are used, the stiffness and earthquake resistance of nodes need to be discussed. At present, modular buildings are mainly applied to low-rise and multi-story buildings in China, and most modules are connected by bolts and welding. Welding connection requires a lot of welding work, high requirements for weld quality and on-site installation, slow construction speed, more welds in the node area, easy to induce cracks and more serious stress concentration phenomenon, and low degree of on-site assembly. Bolt connection has certain requirements for the installation work plane and high construction accuracy. Most bolt connections require the installation hand hole to be opened on the steel pipe column to realize the construction process of bolt tightening, which weakens the local bearing capacity of the column wall, and there is residual stress after plugging and welding. The use of one-way bolts is easy to realize the construction and installation of closed sections, but the production process is complicated, the manufacturing cost is high, and the anchoring mechanism is complex. Most nodes can only meet the connection of specific positions in the steel frame, and the versatility is insufficient. At the same time, the existing connection nodes are complicated to construct, and the impact of the installed wall panels of the module unit on the on-site construction and installation is not fully considered, making it difficult to achieve efficient connection between the module units in terms of up and down, left and right integrity. In addition, the existing module units are connected at the nodes, and the upper and lower module columns of the unit modules only touch each other. The tensile and compressive forces generated under vertical and lateral loads are difficult to form a combined force between the modules for direct joint bearing and transmission, and are difficult to be applied to high-rise and multi-story buildings. Therefore, the development of a new high-performance modular steel-concrete composite structural system has become an inevitable trend of development. Utility Model Content

[0004] The technical problem to be solved by the utility model is: to overcome the shortcomings of the prior art, to provide a new modular combination node, to achieve the goal of efficient assembly of modular units, to overcome the defects such as residual stress and weld quality caused by welding, and at the same time, the quality of the connection nodes is easier to control during the construction process, thereby ensuring the integrity of the modular structure connection and improving the lateral resistance and seismic resistance of the modular structure.

[0005] The utility model discloses a novel modular combination node, comprising a support component symmetrical in upper and lower directions, a connection component placed between the support components and ultra-high performance concrete, wherein the connection component comprises a horizontal connection plate, a plurality of inner sleeves and fastening bolts, the horizontal connection plate is arranged in a square shape, the inner sleeves are installed on the upper and lower sides of the horizontal connection plate along a rectangular array, the support component comprises four square steel pipe columns, column end outer sleeves, a crossbeam and a beam partition, the four square steel pipe columns are arranged in a rectangular array, the column end outer sleeves are placed on the side walls of adjacent square steel pipe columns away from each other, the column end outer sleeves are connected to the square steel pipe columns, one end of the crossbeam is inserted into the column end outer sleeve, the beam partition is placed on the crossbeam and blocks the column end outer sleeve, the horizontal connection plate, the column end outer sleeve and the crossbeam are connected by fastening bolts, and the ultra-high performance concrete is post-poured into the square steel pipe columns, the inner sleeves and the column end outer sleeves.

[0006] By setting the connection assembly with a horizontal connection plate, a number of inner sleeves and fastening bolts, by setting the support assembly into four square steel pipe columns, column end outer sleeves, beams and beam partitions, and then connecting the horizontal connection plate, column end outer sleeves and beams with fastening bolts, a modular combination node is realized, the assembly speed is improved, and the defects such as residual stress and weld quality caused by welding are avoided by the bolt connection method, and the modular combination is also easier to control. By setting the beam partition, it serves as a blocking plate for the column end outer sleeve and also as a stiffening rib for the beam. By post-casting ultra-high performance concrete in the node, the high fluidity, self-compactness and high strength characteristics of ultra-high performance concrete are utilized to connect the beams and columns of the modular combination node into a whole, improve the connection performance of the module unit itself and between the module units, and at the same time improve the stiffness of the beam end, and realize the outward movement of the plastic hinge of the beam end. The fastening bolts set can form a whole with the fastening bolts at the same time after the ultra-high performance concrete is post-cast in the node, and at the same time ensure that the upper and lower column end outer sleeves, the horizontal connection plate and the groove steel beam are subjected to force together.

[0007] The inner sleeve is arranged in a square shape, and square holes are arranged alternately on two adjacent sides of the inner sleeve wall. The inner sleeve is welded directly to the corresponding elevation position of the raised square hole in the horizontal connecting plate as a whole during manufacturing. After pouring ultra-high performance concrete, a shear key is formed at the inner and outer interfaces of the square hole of the inner sleeve wall, which improves the bonding effect between the inner sleeve and the square steel column and enhances the overall performance of the core area of ​​the node.

[0008] The outer circumference size of the cross beam is adapted to the inner wall size of the column end outer sleeve. On the one hand, it prevents the cross beam from being unable to be inserted into the column end outer sleeve, and on the other hand, it prevents the cross beam from being inserted into the column end outer sleeve to form a gap, thereby avoiding unreliable connection and shaking. After the cross beam is inserted into the column end outer sleeve, it is welded to the cross beam and beam partition along the periphery of the column end outer sleeve.

[0009] The middle part of the horizontal connecting plate is provided with a protrusion corresponding to the square steel pipe column, and a limiting groove is formed between adjacent protrusions. The inner sleeve is placed on the protrusion, and the square steel pipe column is clamped on the outer periphery of the protrusion and placed in the limiting groove. The protrusion plays a role in positioning and limiting the square steel pipe column, which is convenient for the installation of the square steel pipe column. The limiting groove prevents horizontal displacement between the module units.

[0010] The horizontal connecting plate is extended a certain distance toward the cross beam. Firstly, it can improve the rigidity of the corner of the square steel pipe column, and secondly, it is equivalent to a fulcrum for the cross beam. Under the reciprocating action of the cross beam, a plastic hinge can be formed at the cross section to protect the core area of ​​the node.

[0011] Shear grooves are arranged on the two side walls of the adjacent square steel pipe columns. After pouring the ultra-high performance concrete, the ultra-high performance concrete flows in the square steel pipe columns, which has a horizontal connection effect and further improves the overall force performance between the square steel columns of each module unit.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model realizes modular combination nodes by setting the connection components to include horizontal connection plates, several inner sleeves and fastening bolts, and by setting the support components to include four square steel pipe columns, column end outer sleeves, cross beams and beam partitions, and then connecting the horizontal connection plates, column end outer sleeves and cross beams with fastening bolts, thereby improving the assembly speed. The bolt connection method avoids defects such as residual stress and weld quality caused by welding, and the modular combination is also easier to control. The beam partition is set, which serves as a blocking plate for the column end outer sleeve and also as a stiffening rib for the cross beam. By post-casting ultra-high performance concrete in the node, the high fluidity, self-compactness and high strength characteristics of ultra-high performance concrete are utilized to connect the beams and columns of the modular combination node to form a whole, thereby improving the connection performance of the module unit itself and between the module units, and at the same time, the beam end stiffness can be improved, and the plastic hinge of the beam end can be moved outward; the fastening bolts set can form a whole with the fastening bolts at the same time after the ultra-high performance concrete is post-cast in the node, and at the same time, the upper and lower column end outer sleeves, the horizontal connection plate and the channel steel beam are ensured to bear force together.

[0014] (2) The inner sleeve is square-shaped and is welded directly to the corresponding elevation position of the raised square hole in the horizontal connecting plate as a whole. Square holes are staggered on the adjacent sides of the inner sleeve wall. After pouring the ultra-high performance concrete, a shear key is formed at the inner and outer interfaces of the square hole in the inner sleeve wall, which improves the bonding effect between the inner sleeve and the square steel column and enhances the overall performance of the core area of ​​the node.

[0015] (3) A protrusion is set in the middle of the horizontal connecting plate corresponding to the square steel pipe column, and a limiting groove is formed between adjacent protrusions. The inner sleeve is placed on the protrusion, and the square steel pipe column is clamped on the outer periphery of the protrusion and placed in the limiting groove. The protrusion plays a role in positioning and limiting the square steel pipe column, which facilitates the installation of the square steel pipe column. The limiting groove prevents horizontal displacement between the module units. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the explosion structure of Example 1 of the utility model;

[0017] Figure 2 It is a schematic diagram of the support component installation structure;

[0018] Figure 3 yes Figure 2 Schematic diagram of the structure after the connection components are installed;

[0019] Figure 4 It is a schematic diagram of the structure after installation of Example 1 of the utility model.

[0020] In the figure: 1. horizontal connecting plate; 2. inner sleeve; 3. fastening bolts; 4. ultra-high performance concrete; 5. cross beam; 6. beam partition; 7. outer sleeve at column end; 8. square steel pipe column; 9. shear groove; 10. square hole. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with embodiments:

[0022] Example 1

[0023] like Figure 1 As shown, a new modular combination node described in the utility model includes a support component that is symmetrical in upper and lower parts, a connection component placed between the support components and an ultra-high performance concrete 4, the connection component includes a horizontal connection plate 1, a plurality of inner sleeves 2 and fastening bolts 3, the horizontal connection plate 1 is arranged in a square shape, the inner sleeve 2 is installed on the upper and lower sides of the horizontal connection plate 1 along a rectangular array, the support component includes four square steel pipe columns 8, column end outer sleeves 7, a crossbeam 5 and a beam partition 6, the four square steel pipe columns 8 are arranged in a rectangular array, the column end outer sleeves 7 are placed on the side walls of adjacent square steel pipe columns 8 that are away from each other, the column end outer sleeves 7 are connected to the square steel pipe columns 8, the crossbeam 5 is a groove steel beam, one end of the crossbeam 5 is inserted into the column end outer sleeve 7, the beam partition 6 is placed on the inner side of the groove steel beam and blocks the column end outer sleeve 7, the horizontal connection plate 1, the column end outer sleeve 7 and the crossbeam 5 are connected by fastening bolts 3, and the ultra-high performance concrete 4 is post-poured into the square steel pipe columns 8, the inner sleeves 2 and the column end outer sleeves 7.

[0024] The inner sleeve 2 is arranged in a square shape, and square holes 10 are arranged alternately on two adjacent sides of the inner sleeve 2 wall.

[0025] The outer circumference of the cross beam 5 matches the inner wall of the column end outer sleeve 7. A protrusion is set in the middle of the horizontal connecting plate 1 corresponding to the square steel pipe column 8, and a limiting groove is formed between adjacent protrusions. The inner sleeve 2 is placed on the protrusion, and the square steel pipe column 8 is clamped on the outer circumference of the protrusion and placed in the limiting groove.

[0026] The horizontal connecting plate 1 is extended toward the cross beam 5 by a certain distance.

[0027] Shear grooves 9 are provided on both side walls of adjacent square steel pipe columns 8 that are close to each other.

[0028] Installation process: Figure 2-4 As shown, firstly, the square steel pipe column 8, the cross beam 5, the beam partition 6, the column end outer sleeve 7, the horizontal connecting plate 1, the inner sleeve 2, and the beam partition 6 are processed in the factory. Then, the square steel pipe column 8 is connected to the column end outer sleeve 7 by welding in the factory, and the beam partition is connected to the channel steel beam by welding. The end of the channel steel beam is inserted into the column end outer sleeve 7, and the square steel pipe column 8 and the channel steel beam are connected by welding along the beam partition 6 to form a module unit as a whole. Then, after each module unit is transported to the site, the square steel pipe columns 8 of the lower 4 module units are first fixed, and then the horizontal connecting plate 1 is used to limit the position to ensure that the square steel pipe columns 8 are just limited in the limit groove and the horizontal connecting plate 1 protrusion is clamped, and then the square steel pipe columns 8 of the upper 4 module units are installed, and at the same time, the upper square steel pipe columns 8 must be limited and clamped with the horizontal connecting plate 1, and finally the upper and lower column end outer sleeves 7, the channel steel beam and the square steel pipe columns 8 are connected by fastening bolts 3. Pour the ultra-high performance concrete 4. After the assembly of each corner node is completed, pour the ultra-high performance concrete 4 in the upper square steel pipe column 8. The post-poured ultra-high performance concrete 4 will fill the entire square steel pipe column 8 and the outer sleeve 7 at the column end to form a new type of node as a whole.

[0029] 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 novel modular composite node, comprising upper and lower symmetrical support components, a connection component disposed between the support components, and ultra-high performance concrete (4), characterized in that: The connection assembly comprises a horizontal connection plate (1), a plurality of inner sleeves (2) and fastening bolts (3); the horizontal connection plate (1) is arranged in a square shape; the inner sleeves (2) are installed on the upper and lower sides of the horizontal connection plate (1) along a rectangular array; the support assembly comprises four square steel pipe columns (8), column end outer sleeves (7), a cross beam (5) and a beam partition (6); the four square steel pipe columns (8) are arranged in a rectangular array; the column end outer sleeves (7) are placed on the side walls of adjacent square steel pipe columns (8) that are away from each other; the column end outer sleeves (7) are connected to the square steel pipe columns (8); one end of the cross beam (5) is inserted into the column end outer sleeve (7); the beam partition (6) is placed on the cross beam (5) and blocks the column end outer sleeve (7); the horizontal connection plate (1), the column end outer sleeve (7) and the cross beam (5) are connected by fastening bolts (3); and ultra-high performance concrete (4) is poured into the square steel pipe columns (8), the inner sleeves (2) and the column end outer sleeves (7).

2. The novel modular combined node according to claim 1 is characterized in that: The inner sleeve (2) is arranged in a square shape, and square holes (10) are arranged alternately on two adjacent sides of the wall of the inner sleeve (2).

3. The novel modular combined node according to claim 1 or 2, characterized in that: The outer circumference size of the cross beam (5) is matched with the inner wall size of the column end outer sleeve (7).

4. The novel modular combined node according to claim 3 is characterized in that: A protrusion is arranged in the middle of the horizontal connecting plate (1) corresponding to the square steel pipe column (8), and a limiting groove is formed between adjacent protrusions. The inner sleeve (2) is placed on the protrusion, and the square steel pipe column (8) is clamped on the outer periphery of the protrusion and placed in the limiting groove.

5. The novel modular combined node according to claim 4 is characterized in that: The horizontal connecting plate (1) is extended towards the cross beam (5) by a certain distance.

6. The novel modular combined node according to claim 5 is characterized in that: Shearing grooves (9) are arranged on both side walls of adjacent square steel pipe columns (8) that are close to each other.

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