Rectangular tube single-layer reticulated shell connecting node structure and construction method thereof

Abstract

The application discloses a rectangular tube single-layer net shell connecting node structure and a construction method thereof, and comprises a supporting core column, a plurality of variable-diameter corbels, two face plates and two side plates which are oppositely arranged, the width of the face plate gradually decreases from a wide end to a narrow end, the same side of the two face plates oppositely extends to form a slant flange, the slant flange is arranged outwardly, the side plate is connected to the slant flange on the same side of the two face plates, the outer diameter of the thick diameter end of the variable-diameter corbel close to the narrow end is larger than that of the thin diameter section of the variable-diameter corbel far from the narrow end, the narrow end and the slant flange are connected to the supporting core column, the plurality of variable-diameter corbels are arranged along the circumferential direction of the supporting core column, the adjacent two variable-diameter corbels are connected, the thin diameter end is connected to a rod piece, and the face plates of the adjacent at least two variable-diameter corbels at one end of the supporting core column are integrally bent and formed into a steel plate. The application solves the problems of difficult processing and installation of the space structure connecting node of the plurality of rod pieces of the single-layer net shell structure system.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a rectangular tube single-layer reticulated shell connection node structure and its construction method. Background Technology

[0002] In recent decades, steel structures have experienced rapid development in my country, finding widespread application in various buildings including modern industrial plants, warehouses, stadiums, exhibition halls, conference venues, airport terminals, train stations, office buildings, commercial and residential buildings, and hotels. Steel structures offer advantages such as beautiful and diverse architectural forms, superior economic indicators, the ability to span large spaces, and diverse connection nodes. In recent years, with the rapid development of computer technology, the application of irregular steel spatial structure systems has increased significantly. For such structures, the design, fabrication, and installation of multi-member intersection nodes present new challenges.

[0003] In some architectural engineering projects, such as single-layer reticulated shell structures composed of triangular grids, the members are rectangular steel tubes, and six non-coplanar rectangular steel tubes intersect to form spatial structural connection nodes (e.g. Figure 1 (As shown). The densely packed members in this connection node area make fabrication and installation difficult.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, a construction method for a rectangular tube single-layer reticulated shell connection node is provided to solve the problem of difficult processing and installation of spatial structural connection nodes for multiple members in a single-layer reticulated shell structural system.

[0006] To achieve the above objectives, a rectangular tube single-layer reticulated shell connection node structure is provided, comprising:

[0007] Support core;

[0008] Multiple variable-diameter brackets are arranged non-coplanarly. Each variable-diameter bracket includes two opposing panels and two side panels. Each panel has two opposing sides in the width direction and a wide end and a narrow end in the length direction. The width of the panel gradually decreases from the wide end to the narrow end. The two panels extend oppositely from the same side to form oblique flanges. The oblique flanges are obliquely outward. The side panels are connected to the oblique flanges on the same side of the two panels. The outer diameter of the larger diameter end of the variable-diameter bracket near the narrow end is larger than the outer diameter of the smaller diameter section of the variable-diameter bracket away from the narrow end. The narrow end and the oblique flanges are connected to a support core column. The multiple variable-diameter brackets are arranged along the circumference of the support core column. Adjacent variable-diameter brackets are intersecting and connected. The smaller diameter end is connected by a rod. The panels of at least two adjacent variable-diameter brackets at one end of the support core column are integrally bent from a single steel plate.

[0009] Furthermore, the number of variable-diameter brackets is six, and the panels of the three variable-diameter brackets on opposite sides of one end of the supporting core column are integrally bent from a single steel plate.

[0010] Furthermore, the side plate is a plate of equal width.

[0011] Furthermore, the distance between the two panels gradually increases from the wide end to the narrow end.

[0012] Furthermore, the supporting core is a solid cylinder.

[0013] This invention provides a construction method for a rectangular tube single-layer reticulated shell connection node structure, comprising the following steps:

[0014] Multiple sector-shaped steel plates are provided. Based on the shape and size of the variable-diameter bracket, lines are laid on the sector-shaped steel plates and bent to obtain an integral bent steel plate.

[0015] A notch is formed on the side of the adjacent oblique flange of the integral bent steel plate that is away from the center of the fan-shaped steel plate;

[0016] The two integral bent steel plates are coaxially connected to each end of the supporting core column;

[0017] A side plate is connected between the opposing notches of the two integrally bent steel plates on the same side of the supporting core column, and the integrally bent steel plates and multiple side plates enclose to form multiple variable diameter brackets;

[0018] Connecting rods to the narrow end of each of the variable-diameter brackets to form a rectangular tube single-layer reticulated shell connection node structure.

[0019] The beneficial effects of this invention are that it provides a rectangular tube single-layer reticulated shell connection node structure, which uses bent panels to form variable diameter brackets, resulting in high load-bearing capacity of the structure, less welding, simpler processing, effectively weakening the influence of node size, achieving optimal building effect, and facilitating accurate on-site installation of members, improving construction efficiency, and being economical and reasonable overall. Attached Figure Description

[0020] 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:

[0021] Figure 1 This is a structural diagram of the connection nodes of the spatial structure.

[0022] Figure 2 This is a schematic diagram of the structure of the rectangular tube single-layer mesh shell connection node according to an embodiment of the present invention.

[0023] Figures 3 to 6 This is a schematic diagram illustrating the construction steps of a rectangular tube single-layer mesh shell connection node structure according to an embodiment of the present invention. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Reference Figures 2 to 6 As shown, the present invention provides a rectangular tube single-layer mesh shell connection node structure, including: a supporting core column 1 and multiple variable diameter brackets.

[0027] Among them, the supporting core column 1 is a solid cylinder.

[0028] The multiple variable-diameter brackets are not coplanar. There are six variable-diameter brackets. In this embodiment, the connection node of the rectangular tube single-layer reticulated shell is pyramidal in shape.

[0029] Specifically, the variable diameter bracket includes two panels 2 and two side panels 3 arranged opposite to each other.

[0030] Panel 2 has two opposite sides in the width direction of panel 2. Panel 2 also has a wide end and a narrow end opposite in the length direction of panel 2. The width of panel 2 gradually decreases from the wide end to the narrow end.

[0031] The two panels 2 extend opposite each other on the same side to form oblique flanges 21. The oblique flanges 21 are obliquely outward.

[0032] The side plate 3 is connected to the oblique flange 21 on the same side of the two panels 2.

[0033] The outer diameter of the larger diameter end of the reducing bracket near the narrow end is larger than the outer diameter of the smaller diameter section of the reducing bracket away from the narrow end. The narrow end and the inclined flange 21 are connected to the support core column 1. Multiple reducing brackets are arranged along the circumference of the support core column 1. Adjacent reducing brackets are intersecting and connected. The smaller diameter end is connected by a connecting rod 7. The panels 2 of at least two adjacent reducing brackets at one end of the support core column 1 are integrally bent from a single steel plate.

[0034] In a preferred embodiment, the panel 2 of the three variable-diameter brackets on opposite sides of one end of the support core column 1 is formed by bending a single steel plate.

[0035] In this embodiment, the steel plate is bent into a fan-shaped structure.

[0036] In this embodiment, the side panel 3 is a plate of equal width. The distance between the two panels 2 gradually increases from the wide end to the narrow end.

[0037] This invention provides a construction method for a rectangular tube single-layer reticulated shell connection node structure, comprising the following steps:

[0038] S1. Provide multiple fan-shaped steel plates 4, and lay out lines on the fan-shaped steel plates 4 based on the shape and size of the variable diameter bracket and bend them to obtain an integral bent steel plate 5.

[0039] The length of each variable-diameter bracket is determined based on the node layout. The center points of the upper and lower panels of the multiple variable-diameter brackets (the center of the support core column) are drawn along the axial direction of the support core column. Then, a line is drawn connecting this center point to the corner point of the wide end of the variable-diameter bracket panel to obtain the bending line of the oblique flange. In this embodiment, a flat steel plate with a fan-like (or nearly fan-shaped) shape is bent along the bending line obtained therein to form the oblique flange. See reference... Figure 3 As shown, in order to reduce the material loss of the plate in the node structure, in this embodiment, two fan-shaped steel plates are bent to obtain the panel of the three variable-diameter brackets on one side of the supporting core column, and then the two fan-shaped steel plates are welded together.

[0040] For the structure of two fan-shaped steel plates welded together, please refer to [reference needed]. Figure 4 As shown.

[0041] S2, see further. Figure 4 As shown, a notch 50 is formed on the side of the adjacent oblique flange 21 on the integral bent steel plate 5 away from the center of the fan-shaped steel plate 4.

[0042] S3. Connect the two integral bent steel plates 5 coaxially to each end of the support core column 1.

[0043] To strengthen the node construction and address the issue of sharp corners at the center point of the node (the center of the sector-shaped steel plate), a solid cylinder is placed at the center point of the inclined flange.

[0044] S4, see reference Figure 5 As shown, side plates 3 are connected between the two integral bent steel plates 5 on the same side of the supporting core column 1, with the integral bent steel plates 5 and multiple side plates 3 enclosing each other to form multiple variable diameter brackets.

[0045] In this embodiment, the notch is V-shaped. The two integrally bent steel plates, which are arranged opposite each other, are connected by a side plate on one side wall of the notch.

[0046] S5, see reference Figure 6 As shown, connecting rod 7 is connected to the narrow end of each variable-diameter bracket to form a rectangular tube single-layer reticulated shell connection node structure.

[0047] The side plate and the tube wall of the rod (rectangular square tube) are set on the same plane and are connected to the tube wall of the rod. Finally, the excess part of the folded steel plate is cut off to form the final rectangular tube single-layer grid shell connection node structure with variable diameter bracket.

[0048] In some embodiments, when the variable diameter bracket is connected to the rod, a guide plate 6 is installed at the smaller diameter end of the variable diameter bracket to facilitate accurate positioning of the rod during installation.

[0049] This invention provides a rectangular tube single-layer reticulated shell connection node structure, which uses bent panels to form variable diameter brackets, resulting in high load-bearing capacity of the structure, less welding, simpler processing, effectively weakening the influence of node size, achieving optimal building effect, and facilitating accurate on-site installation of members, improving construction efficiency, and being economical and reasonable overall.

[0050] 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 rectangular tube single-layer reticulated shell connection node structure, characterized in that, include: Support core; Multiple variable-diameter brackets are arranged non-coplanarly. Each variable-diameter bracket includes two opposing panels and two side panels. Each panel has two opposing sides in the width direction and a wide end and a narrow end in the length direction. The width of the panel gradually decreases from the wide end to the narrow end. The two panels extend oppositely from the same side to form oblique flanges. The oblique flanges are obliquely outward. The side panels are connected to the oblique flanges on the same side of the two panels. The outer diameter of the larger diameter end of the variable-diameter bracket near the narrow end is larger than the outer diameter of the smaller diameter section of the variable-diameter bracket away from the narrow end. The narrow end and the oblique flanges are connected to a support core column. The multiple variable-diameter brackets are arranged along the circumference of the support core column. Adjacent variable-diameter brackets are intersecting and connected. The smaller diameter end is connected by a rod. The panels of at least two adjacent variable-diameter brackets at one end of the support core column are integrally bent from a single steel plate.

2. The rectangular tube single-layer reticulated shell connection node structure according to claim 1, characterized in that, The number of variable-diameter brackets is six, and the panels of the three variable-diameter brackets on opposite sides of one end of the support core column are integrally bent from a single steel plate.

3. The rectangular tube single-layer reticulated shell connection node structure according to claim 1, characterized in that, The side panels are of equal width.

4. The rectangular tube single-layer reticulated shell connection node structure according to claim 1, characterized in that, The distance between the two panels gradually increases from the wide end to the narrow end.

5. The rectangular tube single-layer reticulated shell connection node structure according to claim 1, characterized in that, The supporting core is a solid cylinder.

6. A construction method for a rectangular tube single-layer reticulated shell connection node structure as described in any one of claims 1 to 5, characterized in that, Includes the following steps: Multiple sector-shaped steel plates are provided. Based on the shape and size of the variable-diameter bracket, lines are laid on the sector-shaped steel plates and bent to obtain an integral bent steel plate. A notch is formed on the side of the adjacent oblique flange of the integral bent steel plate that is away from the center of the fan-shaped steel plate; The two integral bent steel plates are coaxially connected to each end of the supporting core column; A side plate is connected between the opposing notches of the two integrally bent steel plates on the same side of the supporting core column, and the integrally bent steel plates and multiple side plates enclose to form multiple variable diameter brackets; Connecting rods to the narrow end of each of the variable-diameter brackets to form a rectangular tube single-layer reticulated shell connection node structure.

Images