New hub type connecting joint structure of steel structure net rack

Abstract

This invention discloses a novel hub-type connection node structure for a steel space frame, comprising: a node disk disposed at the connection node of the steel space frame, wherein the outer edge of the node disk extends outward along the disk surface direction to form multiple first ear plates, and the node disk is coaxially connected to a hub shaft; multiple wing plates connected to the disk surface of the node disk and the circumferential surface of the hub shaft, the wing plates forming second ear plates; and end plates, wherein the end faces of the horizontal members and web members of the steel space frame are respectively connected to the end plates, and the side of the end plates away from the horizontal members and web members respectively forms a third ear plate, the third ear plate of the horizontal member being detachably connected to the first ear plate, and the third ear plate of the web member being detachably connected to the second ear plate. This invention solves the problems of complex welding processes, large node self-weight, and difficulty in aligning members in existing welded hollow sphere nodes of space frame structures.

Description

Technical Field

[0001] This invention relates to the field of space frame structure technology, and specifically to a novel hub-type connection node structure for steel space frames. Background Technology

[0002] Steel space frame structures are widely used in large-span building projects and photovoltaic support structures due to their advantages such as rational spatial stress distribution, large span, light weight, and good seismic performance. As the core load-bearing components of a space frame structure, the connection performance of the member joints directly affects the stability, safety, and construction efficiency of the entire space frame structure.

[0003] Currently, commonly used connection nodes for steel space frame structures with steel tube cross-sections mainly include bolted ball joints and welded hollow ball joints. While welded joints offer high stiffness and good overall integrity, they involve a large amount of on-site welding work, resulting in low construction efficiency. Welding quality is significantly affected by environmental factors and operator skills, and subsequent maintenance is difficult. Bolted ball joints are easy to install, but they are extremely dependent on factory machining precision, requiring high accuracy in member length and bolt-ball joint fit. They are also sensitive to installation sequence and cumulative errors, leading to higher costs. Welded hollow ball joints, on the other hand, present challenges such as complex welding processes, significant joint weight, and difficulty in aligning member connections. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, a novel hub-type connection node structure for steel space frames is provided to solve the problems of complex welding processes, large node self-weight, and difficulty in aligning member connections in existing welded hollow sphere nodes of space frame structures.

[0005] To achieve the above objectives, a novel hub-type connection node structure for steel space frames is provided, comprising: A node disk is set at the connection node of the steel structure space frame. The outer edge of the node disk extends outward along the disk surface direction to form a plurality of first ear plates. The node disk is coaxially connected to a hub shaft. Multiple fins are connected to the disk surface of the node disk and the circumferential surface of the hub shaft, and the fins are formed with second lugs; The end plates are respectively connected to the end faces of the horizontal and web members of the steel structure space frame. A third ear plate is formed on the side of the end plate away from the horizontal and web members. The third ear plate of the horizontal member is detachably connected to the first ear plate, and the third ear plate of the web member is detachably connected to the second ear plate.

[0006] Furthermore, there are four first ear plates, and the four first ear plates are arranged at equal intervals.

[0007] Furthermore, the number of fins is four, and the four fins are equally spaced, with the fins and the first ear plate alternating along the circumferential direction of the node disk.

[0008] Furthermore, the second ear plate is disposed on the upper end of the fin plate on the side away from the hub shaft.

[0009] Furthermore, the end plate is coaxially arranged with the horizontal bar and the web bar.

[0010] Furthermore, the third ear plate is arranged along the radial direction of the end plate.

[0011] Furthermore, the third ear plate is detachably connected to the first ear plate or the second ear plate by bolts.

[0012] The beneficial effects of this invention are that the novel hub-type connection node of the steel structure space frame of this invention has a reasonable structure and clear force transmission. Through the combined design of node disk, hub shaft and fin plate, a multi-directional load-bearing hub-type connection structure is formed, which can effectively transmit the axial force, shear force and bending moment of horizontal bar and web bar, and improve the overall stiffness and load-bearing capacity of the node.

[0013] The novel hub-type connection node structure of the steel structure space frame of this invention is easy to install and efficient in construction. It adopts the method of connecting with ear plates and bolts, which avoids on-site welding operations, simplifies the construction process, reduces the construction difficulty, and improves the installation efficiency. It is especially suitable for projects with tight schedules or complex construction environments.

[0014] The novel hub-type connection node of the steel structure space frame of the present invention has low processing accuracy requirements and strong adaptability. Compared with the traditional bolt ball node, this solution has lower dependence on the length of the members and processing accuracy, is convenient for on-site installation and alignment, has strong adaptability, and is easy to realize standardized production and modular assembly.

[0015] The novel hub-type connection node structure of the steel structure space frame of the present invention is lightweight, economical, simple in construction, and uses less material. The overall weight is relatively light, which helps to reduce the structural weight and foundation cost. It has good economic benefits and promotion value.

[0016] The novel hub-type connection node of the steel structure space frame of the present invention has strong disassembly and is easy to maintain. It adopts a bolt connection method, and the node is disassembled, which facilitates later inspection, repair or replacement of members, thus improving the performance of the structure throughout its entire life cycle.

[0017] The novel hub-type connection node structure of the steel structure space frame of this invention is adaptable to various member arrangements. The node plate can be designed as circular or polygonal, and the ear plate arrangement is flexible, which can adapt to the connection requirements of members in different directions and in different numbers, and has good versatility and scalability. Attached Figure Description

[0018] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a structural schematic diagram of a novel hub-type connection node structure for a steel structure space frame according to an embodiment of the present invention.

[0019] Figure label: Node disk 1, hub shaft 11, first lug plate 12; Fin plate 2, second ear plate 21; End plate 3, third ear plate 31; Horizontal bar 4; 5. Detailed Implementation

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Reference Figure 1 As shown, the present invention provides a novel hub-type connection node structure for a steel structure space frame, comprising: node plate 1, wing plate 2, and end plate 3.

[0023] In this embodiment, the node disk is circular or a regular polygon (n ≥ 4 sides). See also... Figure 1 As shown, the node disk is square.

[0024] The node disk 1 is located at the connection node of the steel structure space frame. The outer edge of the node disk 1 extends outward along the disk surface direction to form a plurality of first ear plates 12.

[0025] In a preferred embodiment, there are four first ear plates 12. The four first ear plates 12 are arranged at equal intervals.

[0026] In this embodiment, the first ear plate is disposed at the four corners of the node disk.

[0027] The node disk 1 is coaxially connected to the hub shaft 11. The hub shaft is a rod or a tube. In this embodiment, the hub shaft is a round steel bar or a round steel tube.

[0028] There are multiple fins 2. The fins are connected to the disk surface of the node disk 1 and the circumferential surface of the hub shaft 11. In this embodiment, the fins are elongated. The fins are vertically arranged. One long side of the fin is connected to the hub shaft, and the lower short side of the fin is connected to the disk surface of the node disk. The fin 2 has a second lug 21.

[0029] In a preferred embodiment, the second ear plate 21 is disposed on the side of the upper end of the fin plate 2 away from the hub shaft 11, that is, the second ear plate is located at the junction of the upper short side and the other long side of the fin plate.

[0030] See Figure 1 As shown, there are four fin plates 2. The four fin plates 2 are arranged at equal intervals. The fin plates 2 and the first ear plate 12 are arranged alternately along the circumferential direction of the node disk 1.

[0031] The end faces of the horizontal members 4 and the web members 5 of the steel structure space frame are respectively connected to end plates 3.

[0032] In a preferred embodiment, the end plate 3 is coaxially arranged with the horizontal bar 4 and the web bar 5.

[0033] In this embodiment, a third ear plate 31 is formed on the side of the end plate 3 away from the horizontal bar 4 and the web bar 5.

[0034] In a preferred embodiment, the third ear plate 31 is disposed along the radial direction of the end plate 3.

[0035] The third lug 31 of the horizontal bar 4 is detachably connected to the first lug 12. The third lug 31 of the web bar 5 is detachably connected to the second lug 21.

[0036] Continue reading Figure 1 As shown, the third ear plate 31 is detachably connected to the first ear plate 12 or the second ear plate 21 by bolts.

[0037] In this embodiment, the first ear plate, the second ear plate, and the third ear plate are each provided with a through hole. During installation, the third ear plate of the horizontal rod is attached to the first ear plate, and the bolt is detachably inserted into the through holes of the third ear plate and the first ear plate; the third ear plate of the web rod is attached to the second ear plate, and the bolt is detachably inserted into the through holes of the third ear plate and the second ear plate of the web rod.

[0038] The novel hub-type connection node of the steel structure space frame of the present invention has a reasonable structure and clear force transmission. Through the combined design of node disk, hub shaft and fin plate, a multi-directional load-bearing hub-type connection structure is formed, which can effectively transmit the axial force, shear force and bending moment of horizontal bar and web bar, and improve the overall stiffness and load-bearing capacity of the node.

[0039] The novel hub-type connection node structure of the steel structure space frame of this invention is easy to install and efficient in construction. It adopts the method of connecting with ear plates and bolts, which avoids on-site welding operations, simplifies the construction process, reduces the construction difficulty, and improves the installation efficiency. It is especially suitable for projects with tight schedules or complex construction environments.

[0040] The novel hub-type connection node of the steel structure space frame of the present invention has low processing accuracy requirements and strong adaptability. Compared with the traditional bolt ball node, this solution has lower dependence on the length of the members and processing accuracy, is convenient for on-site installation and alignment, has strong adaptability, and is easy to realize standardized production and modular assembly.

[0041] The novel hub-type connection node structure of the steel structure space frame of the present invention is lightweight, economical, simple in construction, and uses less material. The overall weight is relatively light, which helps to reduce the structural weight and foundation cost. It has good economic benefits and promotion value.

[0042] The novel hub-type connection node of the steel structure space frame of the present invention has strong disassembly and is easy to maintain. It adopts a bolt connection method, and the node is disassembled, which facilitates later inspection, repair or replacement of members, thus improving the performance of the structure throughout its entire life cycle.

[0043] The novel hub-type connection node structure of the steel structure space frame of this invention is adaptable to various member arrangements. The node plate can be designed as circular or polygonal, and the ear plate arrangement is flexible, which can adapt to the connection requirements of members in different directions and in different numbers, and has good versatility and scalability.

[0044] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A novel hub-type connection node structure for a steel space frame, characterized in that, include: A node disk is set at the connection node of the steel structure space frame. The outer edge of the node disk extends outward along the disk surface direction to form a plurality of first ear plates. The node disk is coaxially connected to a hub shaft. Multiple fins are connected to the disk surface of the node disk and the circumferential surface of the hub shaft, and the fins are formed with second lugs; The end plates are respectively connected to the end faces of the horizontal and web members of the steel structure space frame. A third ear plate is formed on the side of the end plate away from the horizontal and web members. The third ear plate of the horizontal member is detachably connected to the first ear plate, and the third ear plate of the web member is detachably connected to the second ear plate.

2. The novel hub-type connection node structure of the steel structure space frame according to claim 1, characterized in that, The number of the first ear plates is four, and the four first ear plates are equally spaced.

3. The novel hub-type connection node structure of the steel structure space frame according to claim 2, characterized in that, The number of fins is four, and the four fins are equally spaced. The fins and the first ear plate are alternately arranged along the circumferential direction of the node disk.

4. The novel hub-type connection node structure of the steel structure space frame according to claim 1, characterized in that, The second ear plate is disposed on the upper end of the fin plate on the side away from the hub shaft.

5. The novel hub-type connection node structure of the steel structure space frame according to claim 1, characterized in that, The end plate is coaxially arranged with the horizontal bar and the web bar.

6. The novel hub-type connection node structure of the steel structure space frame according to claim 5, characterized in that, The third ear plate is arranged in the radial direction of the end plate.

7. The novel hub-type connection node structure of the steel structure space frame according to claim 1, characterized in that, The third ear plate is detachably connected to the first ear plate or the second ear plate by bolts.

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