A large bearing steel structure connecting joint

Abstract

The utility model provides a kind of big load-bearing steel structure connecting joint, belong to steel structure building technical field.Its structure includes: backplate is welded on the waist board of longitudinal channel steel and horizontal channel steel, positioning plate is equipped in the same plane with backplate on backplate, pin head is equipped on positioning plate, inner lining is welded on backplate, perpendicular to backplate, threaded hole is equipped on the outside of inner lining, support plate is set in pairs, transverse plate is equipped between each pair of support plate, tab is equipped in the front side of limiting plate, the inner end of threaded rod is rotatably connected on backplate, the outer end of threaded rod is penetrated transverse plate and is rotatably connected on connecting piece, lock nut is consolidated on the outer end of threaded rod, the middle part of threaded rod is penetrated tab and limiting plate and is screw-connected with tab and limiting plate the utility model constructs the two-way support structure of horizontal and vertical for connecting joint, on this basis, adjustable inner support plate is additionally provided in channel steel, it helps to enhance node support strength, improve the reliability of big load-bearing steel structure node.

Description

Technical Field

[0001] This utility model relates to the field of steel structure building technology, specifically to a large load-bearing steel structure connection node. Background Technology

[0002] Steel structure connection nodes are critical components that connect beams, columns, and other members in a steel structure into a unified structural system. These nodes provide spatial stiffness and stability and transfer loads to the foundation. Connection nodes play a vital role in steel structures, affecting not only structural safety but also construction efficiency and economic benefits.

[0003] Connection nodes are mainly classified into rigid nodes and semi-rigid nodes. Semi-rigid nodes fall between rigid and hinged connections, possessing some moment transfer capacity, but weaker than rigid nodes. These nodes are used only under specific conditions. Rigid nodes can transfer bending moment, shear force, and axial force; relative rotation or translation between the two components is almost entirely prohibited at the connection point. Common rigid node types include welded nodes and high-strength bolted connections. Welded nodes connect two or more components together through welding, providing high stiffness and strength, but require strict control of welding quality during construction. Bolted connections use bolts, nuts, pins, and other fasteners to connect two components, facilitating installation and disassembly, but their stiffness and strength are relatively lower than welded nodes. Summary of the Invention

[0004] This utility model aims to address the technical deficiencies of existing technologies by providing a large-load-bearing steel structure connection node, thereby solving the technical problem that conventional rigid nodes used in steel structures in the prior art cannot simultaneously ensure structural strength and ease of disassembly.

[0005] To achieve the above technical objectives, the present invention adopts the following technical solution: A connection node for a large load-bearing steel structure includes longitudinal channel steel, transverse channel steel, transverse rib plate, longitudinal rib plate, back plate, positioning plate, inner lining plate, support plate, limiting plate, horizontal plate, pin, protrusion, elongated hole, connecting piece, lock nut, and threaded rod. Transverse channel steel is welded and fixed to the outside of the longitudinal channel steel. Transverse rib plates are welded between adjacent transverse channel steels. Longitudinal rib plates are welded between the transverse and longitudinal channel steels. Back plates are welded to the web plates of both the longitudinal and transverse channel steels. A positioning plate, flush with the back plate, is provided on the back plate. A pin is provided on the positioning plate. An inner lining plate, perpendicular to the back plate, is welded to the back plate. The outer side is provided with threaded holes, and the support plates are arranged in pairs. A horizontal plate is provided between each pair of support plates. A protrusion is provided on the front side of the limiting plate. The inner end of the threaded rod is rotatably connected to the back plate, and the outer end of the threaded rod passes through the horizontal plate and is rotatably connected to the connecting piece. A lock nut is fixed to the outer end of the threaded rod. The middle part of the threaded rod passes through the protrusion and the limiting plate and is threadedly connected to the protrusion and the limiting plate. A pin is fixedly connected between the connecting piece, the horizontal plate, and the back plate. The pin passes through the protrusion and the limiting plate and slides with the protrusion and the limiting plate. An elongated hole is provided on the limiting plate. The inner lining plate passes through the elongated hole. A bolt passes through the support plate and is fastened to the threaded hole on the outer side of the inner lining plate.

[0006] Preferably, the limiting plate is provided with an outer edge plate located on the same plane as the limiting plate, and the outer edge plate is provided with a tube hole. The outer edge plate and the positioning plate are fitted together, and the tube hole is inserted into the pin.

[0007] Preferably, both the longitudinal ribs and the transverse ribs are double-layered structures, and the double-layered structures are parallel to each other.

[0008] Preferably, the longitudinal rib and the transverse rib are each located between the two arms of an angle steel, which is welded to the longitudinal or transverse channel steel.

[0009] Preferably, a widening portion is provided at the root of both the transverse rib and the longitudinal rib, and the cross section of the widening portion is trapezoidal.

[0010] Preferably, each inner liner has at least two threaded holes on its outer side, and the threaded holes are arranged in a straight line on the outer end of the inner liner.

[0011] In the above technical solution, the longitudinal and transverse channel steels form the main structure of the connecting node, providing vertical and horizontal support respectively; the transverse ribs reinforce the structure between adjacent transverse channel steels; the longitudinal ribs reinforce the structure between transverse and longitudinal channel steels; the back plate serves as the rotating connection point for the inner end of the threaded rod; a pin is provided on the positioning plate, which can be inserted into the pipe hole on the outer edge plate, thus providing positioning between the limiting plate and the back plate; the inner lining plate passes through the elongated hole on the limiting plate, guiding the sliding of the limiting plate; the support plate and the transverse plate in its middle support the connecting piece and the pin; the limiting plate, as the inner support of the connecting node, can be adjusted by rotating the threaded rod to facilitate the installation of the connecting node because it is threaded to the threaded rod; the pin passes through the limiting plate and slides with it, guiding the translation of the limiting plate; the convex piece can fit against the transverse plate between the support plates, serving as the initial positioning of the limiting plate; the lock nut can be used to manually rotate the threaded rod.

[0012] This utility model provides a connection node for a large load-bearing steel structure. The technical solution constructs a two-way support structure, both horizontal and vertical, for the connection node. Based on this, an adjustable internal support plate is added using channel steel, which helps to enhance the support strength of the node and improve the reliability of the large load-bearing steel structure node. Attached Figure Description

[0013] Figure 1 This is a perspective view of the entire utility model viewed from above; Figure 2 This is a perspective view of the entire utility model viewed from below; Figure 3 This is the first partial structural diagram of this utility model; Figure 4 This is the second partial structural diagram of this utility model; In the picture: Detailed Implementation

[0014] The specific embodiments of this utility model will be described in detail below. To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments. The approximate language used in the following embodiments can be used for quantitative descriptions, indicating that a certain degree of variation in quantity is permissible without changing the basic function. Unless otherwise defined, the technical and scientific terms used in the following embodiments have the same meaning as commonly understood by those skilled in the art to which this utility model pertains.

[0015] Example 1 A type of large load-bearing steel structure connection node, such as Figures 1-4As shown, the structure includes a longitudinal channel steel 1, a transverse channel steel 2, a transverse rib plate 3, a longitudinal rib plate 4, a back plate 5, a positioning plate 6, an inner lining plate 7, a support plate 8, a limiting plate 9, a transverse plate 10, a pin 11, a protrusion 12, an elongated hole 13, a connecting piece 15, a lock nut 16, and a threaded rod 17. A transverse channel steel 2 is welded and fixed to the outside of the longitudinal channel steel 1. A transverse rib plate 3 is welded between adjacent transverse channel steels 2. A longitudinal rib plate 4 is welded between the transverse channel steel 2 and the longitudinal channel steel 1. A back plate 5 is welded to the waist plate of both the longitudinal channel steel 1 and the waist plate of the transverse channel steel 2. A positioning plate 6, flush with the back plate 5, is provided on the back plate 5. A pin is provided on the positioning plate 6. An inner lining plate 7, perpendicular to the back plate 5, is welded to the back plate 5. A threaded hole is provided on the outside of the inner lining plate 7. The plates 8 are arranged in pairs, with a horizontal plate 10 between each pair of support plates 8. A protrusion 12 is provided on the front side of the limiting plate 9. The inner end of the threaded rod 17 is rotatably connected to the back plate 5, and the outer end of the threaded rod 17 passes through the horizontal plate 10 and is rotatably connected to the connecting piece 15. A lock nut 16 is fixed to the outer end of the threaded rod 17. The middle part of the threaded rod 17 passes through the protrusion 12 and the limiting plate 9 and is threadedly connected to the protrusion 12 and the limiting plate 9. A pin 11 is fixedly connected between the connecting piece 15, the horizontal plate 10, and the back plate 5. The pin 11 passes through the protrusion 12 and the limiting plate 9 and slides with the protrusion 12 and the limiting plate 9. An elongated hole 13 is provided on the limiting plate 9, and the inner lining plate 7 passes through the elongated hole 13. A bolt passes through the support plate 8 and is fastened to the threaded hole on the outer side of the inner lining plate 7.

[0016] In the above technical solution, the longitudinal channel steel 1 and the transverse channel steel 2 are the main structures of the connecting node, respectively serving as vertical and horizontal support; the transverse rib plate 3 provides structural reinforcement between adjacent transverse channel steels 2; the longitudinal rib plate 4 provides structural reinforcement between the transverse channel steel 2 and the longitudinal channel steel 1; the back plate 5 serves as the rotation connection point for the inner end of the threaded rod 17; the positioning plate 6 is provided with a pin head, which can be inserted into the pipe hole on the outer edge plate 14, thereby providing a positioning function between the limiting plate 9 and the back plate 5; the inner lining plate 7 penetrates the elongated hole 13 on the limiting plate 9 for sliding the limiting plate 9. The moving plate 16 serves as a guide; the support plate 8 and the horizontal plate 10 in the middle support the connecting piece 15 and the pin 11; the limiting plate 9 serves as the inner support of the connecting node, and since it is threaded to the threaded rod 17, the position of the limiting plate 9 can be adjusted by rotating the threaded rod 17, which facilitates the installation of the connecting node; the pin 11 passes through the limiting plate 9 and slides with it, which can guide the translation of the limiting plate 9; the protrusion 12 can fit with the horizontal plate 10 between the support plates 8, which serves as the initial positioning of the limiting plate 9; the lock nut 16 can be used to manually rotate the threaded rod 17.

[0017] Example 2 A type of large load-bearing steel structure connection node, such as Figures 1-4As shown, the structure includes a longitudinal channel steel 1, a transverse channel steel 2, a transverse rib plate 3, a longitudinal rib plate 4, a back plate 5, a positioning plate 6, an inner lining plate 7, a support plate 8, a limiting plate 9, a transverse plate 10, a pin 11, a protrusion 12, an elongated hole 13, a connecting piece 15, a lock nut 16, and a threaded rod 17. A transverse channel steel 2 is welded and fixed to the outside of the longitudinal channel steel 1. A transverse rib plate 3 is welded between adjacent transverse channel steels 2. A longitudinal rib plate 4 is welded between the transverse channel steel 2 and the longitudinal channel steel 1. A back plate 5 is welded to the waist plate of both the longitudinal channel steel 1 and the waist plate of the transverse channel steel 2. A positioning plate 6, flush with the back plate 5, is provided on the back plate 5. A pin is provided on the positioning plate 6. An inner lining plate 7, perpendicular to the back plate 5, is welded to the back plate 5. A threaded hole is provided on the outside of the inner lining plate 7. The plates 8 are arranged in pairs, with a horizontal plate 10 between each pair of support plates 8. A protrusion 12 is provided on the front side of the limiting plate 9. The inner end of the threaded rod 17 is rotatably connected to the back plate 5, and the outer end of the threaded rod 17 passes through the horizontal plate 10 and is rotatably connected to the connecting piece 15. A lock nut 16 is fixed to the outer end of the threaded rod 17. The middle part of the threaded rod 17 passes through the protrusion 12 and the limiting plate 9 and is threadedly connected to the protrusion 12 and the limiting plate 9. A pin 11 is fixedly connected between the connecting piece 15, the horizontal plate 10, and the back plate 5. The pin 11 passes through the protrusion 12 and the limiting plate 9 and slides with the protrusion 12 and the limiting plate 9. An elongated hole 13 is provided on the limiting plate 9, and the inner lining plate 7 passes through the elongated hole 13. A bolt passes through the support plate 8 and is fastened to the threaded hole on the outer side of the inner lining plate 7. The limiting plate 9 has an outer edge plate 14 located on the same plane as the limiting plate 9. The outer edge plate 14 has a pipe hole and is fitted to the positioning plate 6. The pipe hole is inserted into the pin. Both the longitudinal rib plate 4 and the transverse rib plate 3 are double-layered structures, parallel to each other. Each of the longitudinal rib plate 4 and the transverse rib plate 3 is located between the two arms of an angle steel, which is welded to either the longitudinal channel steel 1 or the transverse channel steel 2. A widening section is provided at the root of both the transverse rib plate 3 and the longitudinal rib plate 4, and the cross-section of the widening section is trapezoidal. Each inner liner plate 7 has at least two threaded holes on its outer side, arranged in a straight line along the outer end of the inner liner plate 7.

[0018] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and is not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the scope of this utility model application should be included within the protection scope of this utility model.

Claims

1. A connection node for a large load-bearing steel structure, characterized in that... The components include longitudinal channel steel (1), transverse channel steel (2), transverse rib plate (3), longitudinal rib plate (4), back plate (5), positioning plate (6), inner lining plate (7), support plate (8), limiting plate (9), transverse plate (10), pin (11), protrusion (12), elongated hole (13), connecting piece (15), lock nut (16), and threaded rod (17). A transverse channel steel (2) is welded and fixed to the outside of the longitudinal channel steel (1), and between adjacent transverse channel steels (2)... A transverse rib plate (3) is welded on the transverse channel steel (2) and the longitudinal channel steel (1). A longitudinal rib plate (4) is welded between the transverse channel steel (2) and the longitudinal channel steel (1). A back plate (5) is welded on both the waist plate of the longitudinal channel steel (1) and the waist plate of the transverse channel steel (2). A positioning plate (6) is provided on the back plate (5) and is in the same plane as the back plate (5). A pin is provided on the positioning plate (6). An inner lining plate (7) perpendicular to the back plate (5) is welded on the back plate (5). A threaded hole is provided on the outer side of the inner lining plate (7) for support. The plates (8) are arranged in pairs, with a horizontal plate (10) between each pair of support plates (8). A protrusion (12) is provided on the front side of the limiting plate (9). The inner end of the threaded rod (17) is rotatably connected to the back plate (5), and the outer end of the threaded rod (17) passes through the horizontal plate (10) and is rotatably connected to the connecting piece (15). A lock nut (16) is fixed to the outer end of the threaded rod (17). The middle part of the threaded rod (17) passes through the protrusion (12) and the limiting plate (9) and is connected to the protrusion. The plate (12) and the limiting plate (9) are threaded together. The pin (11) is fixedly connected between the connecting plate (15), the horizontal plate (10), and the back plate (5). The pin (11) passes through the protrusion (12) and the limiting plate (9) and slides between the protrusion (12) and the limiting plate (9). The limiting plate (9) has an elongated hole (13). The inner lining plate (7) passes through the elongated hole (13). The bolt passes through the support plate (8) and is fastened to the threaded hole on the outside of the inner lining plate (7).

2. The large load-bearing steel structure connection node according to claim 1, characterized in that, An outer edge plate (14) is provided on the limiting plate (9) and is located on the same plane as the limiting plate (9). A tube hole is provided on the outer edge plate (14). The outer edge plate (14) and the positioning plate (6) are in contact with each other, and the tube hole is inserted into the pin.

3. A large load-bearing steel structure connection node according to claim 1, characterized in that, Both the longitudinal rib (4) and the transverse rib (3) are double-layered structures, and the double-layered structures are parallel to each other.

4. A large load-bearing steel structure connection node according to claim 1, characterized in that, The longitudinal rib (4) and the transverse rib (3) are each located between the two arms of an angle steel, which is welded to the longitudinal channel steel (1) or the transverse channel steel (2).

5. A large load-bearing steel structure connection node according to claim 1, characterized in that, A widening section is provided at the root of the transverse rib (3) and the root of the longitudinal rib (4), and the cross section of the widening section is trapezoidal.

6. A large load-bearing steel structure connection node according to claim 1, characterized in that, Each inner liner (7) has at least two threaded holes on its outer side, and the threaded holes are arranged in a straight line on the outer end of the inner liner (7).

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