A connection node structure of combined corner column and floor beam

Abstract

The present invention provides a connection node structure of a combined corner column and a floor beam, comprising a corner column and a floor beam, wherein the corner column comprises a first G-shaped steel and a second G-shaped steel arranged vertically, a side plate of the first G-shaped steel is located on the outer side of the bottom plate of the second G-shaped steel, and a gap is left between the first G-shaped steel and the second G-shaped steel; a node is provided at the upper part of the corner column, and the node comprises a first vertical plate and a second vertical plate, the first vertical plate is inserted in the gap and is respectively attached to and fixedly connected with the side plate of the first G-shaped steel and the bottom plate of the second G-shaped steel; the second vertical plate is attached to and fixedly connected with the outer side surface of the bottom plate of the first G-shaped plate, and the inner end of the second vertical plate is fixedly connected with the first vertical plate; the outer end of the second vertical plate and one end or both ends of the first vertical plate extend outwardly and are located outside the corner column, and the floor beam is fixedly connected to the outer end of the first vertical plate or the second vertical plate. The present invention has the advantages of optimizing the existing structure, generalization, standardization and convenient on-site installation.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure buildings, and in particular to a connection node structure of a combined corner column and a floor beam. Background Art

[0002] The cluster intelligent assembly system is a new type of cold-formed steel building structure system. The cluster low-rise structure product is a product series of the cluster intelligent assembly system. The cluster low-rise structure modular corner column is an important part of the cluster low-rise structure product. At present, the common dense-rib light steel structure with cold-formed steel as the core has a wall-bearing load-bearing mode. The vertical keel in the wall panel is the main component of the structure that bears the vertical force, so the keel wall cannot be removed, otherwise there will be structural safety problems. This makes it difficult to rearrange the functional areas of the dense-rib light steel structure during the use of the building, and its indoor bay is relatively small and cramped, and the location of the door and window openings is not flexible. More importantly, the existing light steel keel dense-rib system often uses keel clamp puncture connection, self-tapping screws and other connection methods in the node part, which is difficult to ensure its on-site construction quality, the connection node strength is not high, and there is no strict node verification, which has safety hazards; studies have found that the parent material at the connection is its weak link and is prone to buckling and failure under extreme load conditions. This situation is particularly prominent in strong earthquake areas. Therefore, it is urgent to break through the limitations of the wall bearing system and develop a new column bearing structure system that is suitable for cold-formed steel, especially to solve the problem of strengthening, general, and industrially produced thin-walled steel structure beam-column connection nodes. This is very important for promoting cold-formed steel materials as widely applicable structural materials and expanding their scope of application. Summary of the invention

[0003] In response to the technical needs, the present invention provides a connection node structure of a combined corner column and a floor beam.

[0004] A connection node structure of a combined corner column and a floor beam, comprising a corner column and a floor beam, characterized in that: the corner column comprises a first G-shaped steel and a second G-shaped steel arranged vertically, a side plate of the first G-shaped steel is located on the outer side surface of the bottom plate of the second G-shaped steel, and a gap is left between the first G-shaped steel and the second G-shaped steel; a node is provided at the upper part of the corner column, and the node comprises a first vertical plate and a second vertical plate, the first vertical plate is penetrated in the gap and is respectively adhered to and fixedly connected to the side plate of the first G-shaped steel and the bottom plate of the second G-shaped steel; the second vertical plate is adhered to and fixedly connected to the outer side surface of the bottom plate of the first G-shaped steel, and the inner end of the second vertical plate is fixedly connected to the first vertical plate; the outer end of the second vertical plate and one or both ends of the first vertical plate extend outward and are located outside the corner column, and the floor beam is fixedly connected to the outer end of the first vertical plate or the second vertical plate.

[0005] The working principle of the present invention is as follows: a gap is provided between the first G-shaped steel and the second G-shaped steel, and the first vertical plate in the node is fixedly arranged in the gap, so that the node and the corner column are integrated into an integrated structure, and at the same time, the second vertical plate and the first vertical plate cooperate to fix the floor beam in three directions of the corner column.

[0006] Further, a third vertical plate is provided on the inner side surface of the bottom plate of the second G-shaped steel corresponding to the position of the first vertical plate, the inner end of the third vertical plate is bent to fit and be fixedly connected with the bottom plate of the second G-shaped steel, the outer end plate of the third vertical plate is located on the same straight line as the second vertical plate, and the floor beam is fixedly connected to the outer end of the third vertical plate, so that the floor beams are fixedly arranged in four directions of the corner column.

[0007] Further, a first stiffening plate is fixedly connected between the bent portion and the outer end of the inner end of the third vertical plate. The first stiffening plate is triangular, and its side plates are respectively welded to the outer end and the inner end of the third vertical plate.

[0008] Further, the nodes are fixedly arranged at the top and upper ends of the corner column, and the first vertical plate and the second vertical plate of the node at the top located at the bottom plate of the first G-shaped steel or the second G-shaped steel extend upward and are located outside the corner column. The upwardly extending portions of the first vertical plate and the second vertical plate are used to fix and connect the first G-shaped steel and the second G-shaped steel in the upper corner column.

[0009] Furthermore, the first G-shaped steel and the second G-shaped steel have the same specifications, and the cross-sectional structure of the corner column is L-shaped.

[0010] Further, the first vertical plate is welded to both sides of the second G-shaped steel bottom plate and the outer side plate of the first G-shaped steel side plate, and the second vertical plate is welded to the outer side of the first G-shaped steel bottom plate. This fixed connection structure is easy to weld and has high structural strength.

[0011] Further: a second stiffening plate is connected between the first vertical plate and the second vertical plate, the second stiffening plate is located on the other side of the second vertical plate relative to the first G-shaped steel, the second stiffening plate is triangular, and its two side plates are respectively welded to the first vertical plate and the second vertical plate.

[0012] Beneficial effects of the present invention: 1. Optimized structure: Specifically targeting the common problems of local buckling at node connections and hole wall extrusion damage that are easily produced in cold-bent thin-walled steel sections, the structure of welding the first vertical plate and the second vertical plate in the corner column improves the safety and reliability of key nodes of the cold-bent thin-walled steel structure.

[0013] 2. Generalization: The node structure of the present invention satisfies four combinations of corner columns (such as Figure 6As shown), it also satisfies the connection relationship between all truss main beams, i.e., floor beams and corner columns in multiple directions.

[0014] 3. Standardization: The nodes in the present invention are welded parts, which are assembled from standard parts plates, and the welding method, fillet weld position, and resistance welding point position are standardized. Parts and welded parts can be made by automated robots.

[0015] 4. Convenient on-site installation: The first vertical plate and the second vertical plate of the node in the present invention provide bolt node plates for direct connection in three directions for adjacent truss main beams. The fourth direction is connected by a reinforcing folding piece arranged on the inner side plate of the second G-type plate bottom plate, namely the third vertical plate. The structural connection is convenient, flexible and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the present invention;

[0018] Figure 3 It is a structural schematic diagram of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the present invention;

[0020] Figure 5 It is a schematic diagram of the assembly structure of the present invention;

[0021] Figure 6 Schematic diagram of the corner column structure in four combinations of the present invention.

[0022] In the figure, 1. corner column; 11. first G-shaped steel; 12. second G-shaped steel; 21. first vertical plate; 22. second vertical plate; 23. second stiffening plate; 24. third vertical plate; 241. first stiffening plate; 3. floor beam. DETAILED DESCRIPTION

[0023] It should be noted that the terms such as left, center, right, top, bottom, etc. in the examples of the present invention are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0024] A combined corner column and floor beam connection node structure, combined Figure 1 and Figure 5As shown, it includes a corner column 1 and a floor beam 3, the corner column 1 includes a first G-shaped steel 11 and a second G-shaped steel 12 arranged vertically, a side plate of the first G-shaped steel 11 is located on the outer side of the bottom plate of the second G-shaped steel 12, and a gap is left between the first G-shaped steel 11 and the second G-shaped steel 12; a node is provided at the upper part of the corner column 1, and the node includes a first vertical plate 21 and a second vertical plate 22, the first vertical plate 21 is penetrated in the gap and is respectively attached to and fixedly connected with the side plate of the first G-shaped steel 11 and the bottom plate of the second G-shaped steel 12; the second vertical plate 22 is attached to and fixedly connected with the outer side surface of the bottom plate of the first G-shaped steel 11, and the inner end of the second vertical plate 22 is fixedly connected with the first vertical plate 21; combined Figure 2 and Figure 3 As shown, the outer end of the second vertical plate 22 and one end or both ends of the first vertical plate 21 extend outward and are located outside the corner column 1, and the floor beam 3 is fixedly connected to the outer end of the first vertical plate 21 or the second vertical plate 22. A second stiffening plate 23 is connected between the first vertical plate 21 and the second vertical plate 22. The second stiffening plate 23 is located on the other side of the second vertical plate 22 relative to the first G-shaped steel. The second stiffening plate 23 is triangular, and its side plates are welded to the first vertical plate 21 and the second vertical plate 22 respectively.

[0025] Combination Figure 3 As shown, a third vertical plate 24 is provided on the inner side surface of the bottom plate of the second G-shaped steel 12 at a position corresponding to the first vertical plate 21, the inner end of the third vertical plate 24 is bent and adhered to and fixedly connected with the bottom plate of the second G-shaped steel 12, the outer end plate of the third vertical plate 24 is located on the same straight line as the second vertical plate 22, and the floor beam 3 is fixedly connected to the outer end of the third vertical plate 24; a first stiffening plate 241 is fixedly connected between the bent portion and the outer end of the inner end of the third vertical plate 24, the first stiffening plate 241 is triangular, and its side plates are respectively welded to the outer end and inner end of the third vertical plate 24.

[0026] Combination Figure 4 As shown, the nodes are fixedly provided at the top and upper ends of the corner column 1, and the first vertical plate 21 and the second vertical plate 22 of the node at the top are located at the bottom plate of the first G-shaped steel 11 or the second G-shaped steel 12 and extend upward and are located outside the corner column 1; the upward extending parts of the first vertical plate 21 and the second vertical plate 22 are used for fixedly connecting the first G-shaped steel 11 and the second G-shaped steel 12 in the upper corner column.

[0027] In addition, the first G-shaped steel 11 and the second G-shaped steel 12 have the same specifications, and the cross-sectional structure of the corner column 1 is L-shaped; the first vertical plate 21 is welded to both side edges of the bottom plate of the second G-shaped steel 12 and the outer side plate of the side plate of the first G-shaped steel 11, and the second vertical plate 22 is welded to the outer side edge of the bottom plate of the first G-shaped steel 11.

[0028] The working principle of the present invention is as follows: a gap is provided between the first G-shaped steel and the second G-shaped steel, and the first vertical plate in the node is fixedly arranged in the gap, so that the node and the corner column are integrated into an integrated structure, and at the same time, the second vertical plate and the first vertical plate cooperate to fix the floor beams in three directions of the corner column; in addition, the third vertical plate is fixed on the inner side surface of the bottom plate of the second G-shaped steel to realize the fixing of the floor beams in the fourth direction of the corner column.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A combined corner column and floor beam connection node structure, comprising a corner column and a floor beam, characterized in that: The corner column includes a first G-shaped steel and a second G-shaped steel arranged vertically, a side plate of the first G-shaped steel is located on the outer side of the bottom plate of the second G-shaped steel, and a gap is left between the first G-shaped steel and the second G-shaped steel; a node is provided at the upper part of the corner column, and the node includes a first vertical plate and a second vertical plate, the first vertical plate is penetrated in the gap and is respectively adhered to and fixedly connected with the side plate of the first G-shaped steel and the bottom plate of the second G-shaped steel; the second vertical plate is adhered to and fixedly connected with the outer side surface of the bottom plate of the first G-shaped steel, and the inner end of the second vertical plate is fixedly connected with the first vertical plate; the outer end of the second vertical plate and one end or both ends of the first vertical plate extend outward and are located outside the corner column, and the floor beam is fixedly connected to the outer end of the first vertical plate or the second vertical plate.

2. The connection node structure of a combined corner column and a floor beam according to claim 1, characterized in that: The nodes are fixedly provided at the top and upper ends of the corner column, and the first vertical plate and the second vertical plate of the node at the top are located at the bottom plate of the first G-shaped steel or the second G-shaped steel and extend upward and are located outside the corner column.

3. The connection node structure of a combined corner column and a floor beam according to claim 1, characterized in that: The first G-shaped steel and the second G-shaped steel have the same specifications, and the cross-sectional structure of the corner column is L-shaped.

4. The connection node structure of a combined corner column and a floor beam according to claim 1, characterized in that: The first vertical plate is welded to both side edges of the second G-shaped steel bottom plate and the outer side plate of the first G-shaped steel side plate, and the second vertical plate is welded to the outer side edge of the first G-shaped steel bottom plate.

5. The connection node structure of a combined corner column and a floor beam according to claim 1, characterized in that: A second stiffening plate is connected between the first vertical plate and the second vertical plate. The second stiffening plate is located on the other side of the second vertical plate relative to the first G-shaped steel.

6. A connection node structure of a combined corner column and a floor beam according to any one of claims 1 to 5, characterized in that: A third vertical plate is provided on the inner side surface of the bottom plate of the second G-shaped steel at a position corresponding to the first vertical plate, the inner end of the third vertical plate is bent to fit and fixedly connected to the bottom plate of the second G-shaped steel, the outer end plate of the third vertical plate is located on the same straight line as the second vertical plate, and the floor beam is fixedly connected to the outer end of the third vertical plate.

7. The connection node structure of a combined corner column and a floor beam according to claim 6, characterized in that: A first stiffening plate is fixedly connected between the bent portion at the inner end and the outer end portion of the third vertical plate.

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