Large-span steel reticulated shell support connecting node

Abstract

The utility model belongs to the field of constructional engineering, and provides a large-span steel reticulated shell support connecting joint which comprises a supporting rod, an upper rib plate, a lower rib plate, an annular side plate, two inner rib plates and two first main stress rectangular pipes. Two ends of the annular side plate are respectively fixed with the upper rib plate and the lower rib plate; a top plate and a bottom plate of the first main stress rectangular pipe are fixed to the upper rib plate and the lower rib plate correspondingly, and two web plates of the first main stress rectangular pipe are fixed to the annular side plate. And the two inner rib plates are respectively aligned with the two web plates of the first main stress rectangular pipe. According to the reticulated shell support connecting joint, the upper rib plate, the lower rib plate, the annular side plate and the inner rib plate are arranged to replace a traditional welding ball joint, the height of the support joint can be effectively reduced, and the requirements of an architect for overall safety, reliability and light shape of the structure are met. The reticulated shell support connecting joint is simple in structure, clear in force transmission path, safe, reliable and convenient to construct, and has very positive significance on achieving building modeling lightness on the basis of the structural system of the kind.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering, and specifically relates to a connection node for a large-span steel grid shell support. Background Technology

[0002] Nodes in steel grid shell structures are a key design element and a significant factor affecting their safety. Conventional grid shell structures typically employ circular steel tubes and welded spherical nodes. However, welded spherical nodes result in considerable height and overall thickness, leading to a substantial weight that fails to meet the requirements for lightweight architectural designs.

[0003] The main problem that steel grid shell node design must solve is how to ensure that the node construction meets the structural stress requirements, demonstrates good economy, has a simple and clear force transmission path, and meets the increasingly high standard of modern architecture. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a large-span steel grid shell support connection node, which can solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a large-span steel grid shell support connection node, including a strut, an upper rib plate, a lower rib plate, an annular side plate, two inner rib plates, and two first main force-bearing rectangular tubes;

[0006] The upper rib and the lower rib are arranged in parallel and spaced apart, and the two ends of the annular side plate are fixed to the upper rib and the lower rib respectively;

[0007] The strut is fixed to the lower rib plate;

[0008] The two first main force-bearing rectangular tubes are symmetrical about the annular side plate. The top plate and bottom plate of the first main force-bearing rectangular tubes are fixed to the upper rib plate and the lower rib plate, respectively. Both web plates of the first main force-bearing rectangular tubes are fixed to the annular side plate.

[0009] The inner ribs are disposed inside the annular side plate, and the two inner ribs are respectively aligned with the two webs of the first main force-bearing rectangular tube.

[0010] Preferably, the system also includes two second main load-bearing rectangular tubes, which are symmetrical about the annular side plate. The top and bottom plates of the second main load-bearing rectangular tubes are fixed to the upper rib and the lower rib, respectively, and both webs of the second main load-bearing rectangular tubes are fixed to the annular side plate.

[0011] Preferably, the top plate and bottom plate of the second main load-bearing rectangular tube are welded to the upper rib plate and the lower rib plate, respectively, and both web plates of the second main load-bearing rectangular tube are welded to the annular side plate.

[0012] Preferably, the system also includes two secondary stressed rectangular tubes, which are symmetrical about the annular side plate. The top and bottom plates of the secondary stressed rectangular tubes are fixed to the upper rib and the lower rib, respectively, and both webs of the secondary stressed rectangular tubes are fixed to the annular side plate.

[0013] Preferably, the top plate and bottom plate of the secondary stressed rectangular tube are welded to the upper rib plate and the lower rib plate, respectively, and both web plates of the secondary stressed rectangular tube are welded to the annular side plate.

[0014] Preferably, both the upper rib and the lower rib are round steel plates.

[0015] Preferably, both ends of the inner rib are welded to the annular side plate.

[0016] Preferably, the inner rib plate and the lower rib plate are planed flat and tightened together.

[0017] Preferably, the top plate and bottom plate of the first main load-bearing rectangular tube are welded to the upper rib plate and the lower rib plate, respectively.

[0018] Preferably, both webs of the first main load-bearing rectangular tube are welded to the annular side plate.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model provides a large-span steel grid shell support connection node. By setting upper ribs, lower ribs, annular side plates, and inner ribs to replace the traditional welded ball joint, the height of the support node can be effectively reduced, thereby meeting the architect's requirements for overall structural safety and reliability as well as a lightweight design. Furthermore, this grid shell support connection node conforms to the stress characteristics of grid shell structure nodes, has a simple construction, a clear force transmission path, is safe and reliable, and is easy to construct. It has a very positive significance for achieving a lightweight architectural design while ensuring structural safety in this type of structural system. Attached Figure Description

[0021] Figure 1 A front view structural schematic diagram of a large-span steel grid shell support connection node provided for an embodiment of this utility model;

[0022] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure at point AA;

[0023] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure at point BB;

[0024] Figure 4 for Figure 1A schematic diagram of the cross-sectional structure at point CC.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. The first main load-bearing rectangular tube;

[0027] 2. Second main load-bearing rectangular tube;

[0028] 3. Secondary load-bearing rectangular tube;

[0029] 4. Support poles;

[0030] 5. Upper rib plate;

[0031] 6. Lower rib plate;

[0032] 7. Annular side plate;

[0033] 8. Inner rib plate. Detailed Implementation

[0034] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0035] This embodiment provides a large-span steel grid shell support connection node, including a strut 4, an upper rib plate 5, a lower rib plate 6, an annular side plate 7, two inner rib plates 8, and two first main load-bearing rectangular tubes 1.

[0036] The upper rib plate 5 and the lower rib plate 6 are arranged in parallel at intervals, and the two ends of the annular side plate 7 are fixed to the upper rib plate 5 and the lower rib plate 6 respectively.

[0037] For example, see Figure 1 Both the upper rib plate 5 and the lower rib plate 6 are round steel plates, and are arranged in parallel at intervals. The annular side plate 7 is adapted to the upper rib plate 5 and the lower rib plate 6, that is, the outer diameter of the annular side plate 7 is the same as the diameter of the upper rib plate 5 and the diameter of the lower rib plate 6. The two ends of the annular side plate 7 are welded to the upper rib plate 5 and the lower rib plate 6 respectively.

[0038] The strut 4 is fixed to the lower rib plate 6.

[0039] For example, see Figure 1 The top of the strut 4 is welded to the lower rib plate 6.

[0040] The two primary load-bearing rectangular tubes 1 are symmetrical about the annular side plate 7. The top plate and bottom plate of the primary load-bearing rectangular tube 1 are fixed to the upper rib plate 5 and the lower rib plate 6, respectively. Both webs of the primary load-bearing rectangular tube 1 are fixed to the annular side plate 7.

[0041] For example, see Figure 1-3 Two primary load-bearing rectangular tubes 1 are located on opposite sides of the annular side plate 7, and are symmetrical. The top plate of each primary load-bearing rectangular tube 1 has an arc-shaped surface adapted to the upper rib plate 5 near its end, and is welded to the upper rib plate 5 through this arc-shaped surface. This allows the upper rib plate 5 to transmit the force from the top plate of the primary load-bearing rectangular tube 1. The bottom plate of each primary load-bearing rectangular tube 1 has an arc-shaped surface adapted to the lower rib plate 6 near its end, and is welded to the lower rib plate 6 through this arc-shaped surface. This allows the lower rib plate 6 to transmit the force from the bottom plate of the primary load-bearing rectangular tube 1. The web of each primary load-bearing rectangular tube 1 has an arc-shaped surface adapted to the annular side plate 7 near its end, and is welded to the annular side plate 7 through this arc-shaped surface.

[0042] The inner rib plate 8 is located inside the annular side plate 7, and the two inner rib plates 8 are respectively aligned with the two web plates of the first main force-bearing rectangular tube 1.

[0043] For example, see Figure 1-4 Both inner ribs 8 are located inside the annular side plate 7, and both ends of the inner ribs 8 have arc-shaped surfaces, which are welded to the annular side plate 7. Furthermore, both ends of the inner ribs 8 are aligned with the webs of the two first main load-bearing rectangular tubes 1, respectively. (See [reference]). Figure 3 That is, the inner rib plate 8 is arranged along the line connecting the webs of the two first main force-bearing rectangular tubes 1 on the same side. In this way, the inner rib plate 8 can transmit the force of the webs of the first main force-bearing rectangular tubes 1, ensuring the continuity of force transmission within the node.

[0044] Based on the above structure, the reticulated shell support connection node provided in this embodiment replaces the traditional welded ball joint with an upper rib plate 5, a lower rib plate 6, an annular side plate 7, and an inner rib plate 8. This effectively reduces the height of the support node, thereby meeting the architect's requirements for overall structural safety and reliability while maintaining a lightweight design. This reticulated shell support connection node conforms to the stress characteristics of reticulated shell structure nodes, has a simple construction, a clear force transmission path, is safe and reliable, and is easy to construct. It has a very positive significance for achieving a lightweight architectural design while ensuring structural safety in this type of structural system.

[0045] Based on the above technical solution, the technical solution provided in this embodiment also includes two second main force-bearing rectangular tubes 2, which are symmetrical about the annular side plate 7. The top plate and bottom plate of the second main force-bearing rectangular tube 2 are fixed to the upper rib plate 5 and the lower rib plate 6, respectively, and the two web plates of the second main force-bearing rectangular tube 2 are fixed to the annular side plate 7.

[0046] For example, see Figure 1-4Two secondary main load-bearing rectangular tubes 2 are located on opposite sides of the annular side plate 7, and are symmetrical. The top plate of each secondary main load-bearing rectangular tube 2 has an arc-shaped surface adapted to the upper rib plate 5 near its end, and is welded to the upper rib plate 5 through this arc-shaped surface. This allows the upper rib plate 5 to transmit the force from the top plate of the secondary main load-bearing rectangular tube 2. The bottom plate of each secondary main load-bearing rectangular tube 2 has an arc-shaped surface adapted to the lower rib plate 6 near its end, and is welded to the lower rib plate 6 through this arc-shaped surface. This allows the lower rib plate 6 to transmit the force from the bottom plate of the secondary main load-bearing rectangular tube 2. The web of each secondary main load-bearing rectangular tube 2 has an arc-shaped surface adapted to the annular side plate 7 near its end, and is welded to the annular side plate 7 through this arc-shaped surface. In other words, the annular side plate 7 can fully meet the welding requirements of the sides, thereby allowing for the welding of more load-bearing rectangular tubes.

[0047] The technical solution provided in this embodiment also includes two secondary force-bearing rectangular tubes 3, which are symmetrical about the annular side plate 7. The top plate and bottom plate of the secondary force-bearing rectangular tube 3 are fixed to the upper rib plate 5 and the lower rib plate 6, respectively, and the two web plates of the secondary force-bearing rectangular tube 3 are fixed to the annular side plate 7.

[0048] For example, see Figure 2-4 Two secondary load-bearing rectangular tubes 3 are located on opposite sides of the annular side plate 7, and are symmetrical. The top plate of each secondary load-bearing rectangular tube 3 has an arc-shaped surface adapted to the upper rib plate 5 near its end, and is welded to the upper rib plate 5 through this arc-shaped surface. In this way, the upper rib plate 5 can transmit the force from the top plate of the secondary load-bearing rectangular tube 3. The bottom plate of each secondary load-bearing rectangular tube 3 has an arc-shaped surface adapted to the lower rib plate 6 near its end, and is welded to the lower rib plate 6 through this arc-shaped surface. In this way, the lower rib plate 6 can transmit the force from the bottom plate of the secondary load-bearing rectangular tube 3. The web of each secondary load-bearing rectangular tube 3 has an arc-shaped surface adapted to the annular side plate 7 near its end, and is welded to the annular side plate 7 through this arc-shaped surface.

[0049] In the technical solution provided in this embodiment, the inner rib plate 8 and the lower rib plate 6 are planed flat and tightened together.

[0050] For example, see Figure 1 The inner rib plate 8 serves as an out-of-plane support for the lower rib plate 6, effectively resisting the internal forces transmitted by the strut 4. Since the primary function between the inner rib plate 8 and the lower rib plate 6 is pressure transmission, to ensure on-site construction feasibility, the inner rib plate 8 is connected to the lower rib plate 6 by planing and tightening. When tension conditions occur between the inner rib plate 8 and the lower rib plate 6, the design of the lower rib plate 6 can disregard the role of the inner rib plate 8. As an extension of the web of the first main load-bearing rectangular tube 1 and an out-of-plane support for the lower rib plate 6, the inner rib plate 8 significantly optimizes the joint load-bearing capacity, reduces the bending calculation length of the lower rib plate 6, and effectively reduces the wall thickness of the lower rib plate 6. Therefore, the inclusion of the inner rib plate 8 is of great significance for both joint fabrication and economic efficiency.

[0051] The specific implementation method is as follows:

[0052] Example 1

[0053] A large-span reticulated shell, spanning 18m x 55m, with a height of 4.5m, requires an overall thickness of no more than 500mm after the shell is completely encased.

[0054] The conventional design for the grid shell uses round steel pipes and welded spherical joints. Calculations show that the diameter of the support spherical joints reaches 900mm. Considering the external purlins and building surface treatment, the overall external thickness reaches nearly 1200mm, far exceeding 500mm, which cannot meet the requirements for a lightweight building design.

[0055] The large-span steel grid shell support connection node provided in this embodiment is adopted, and the grid shell members are adjusted to rectangular tubes. Calculation and analysis show that the maximum grid shell member height is 450mm, which is no more than 500mm, meeting the requirements. The support node height is equal to this, ensuring the appearance of the building facade.

[0056] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0059] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A large-span steel latticed shell support connection joint, characterized in that, It includes a strut (4), an upper rib plate (5), a lower rib plate (6), an annular side plate (7), two inner rib plates (8), and two first main load-bearing rectangular tubes (1). The upper rib (5) and the lower rib (6) are arranged in parallel at intervals, and the two ends of the annular side plate (7) are fixed to the upper rib (5) and the lower rib (6) respectively. The strut (4) is fixed to the lower rib plate (6); The two first main force-bearing rectangular tubes (1) are symmetrical about the annular side plate (7). The top plate and bottom plate of the first main force-bearing rectangular tube (1) are fixed to the upper rib plate (5) and the lower rib plate (6) respectively. The two web plates of the first main force-bearing rectangular tube (1) are fixed to the annular side plate (7). The inner rib plate (8) is disposed inside the annular side plate (7), and the two inner rib plates (8) are respectively aligned with the two web plates of the first main force-bearing rectangular tube (1).

2. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, It also includes two second main force-bearing rectangular tubes (2), which are symmetrical about the annular side plate (7). The top plate and bottom plate of the second main force-bearing rectangular tube (2) are fixed to the upper rib plate (5) and the lower rib plate (6) respectively. The two web plates of the second main force-bearing rectangular tube (2) are fixed to the annular side plate (7).

3. The support connection joint of a long-span steel latticed shell according to claim 2, characterized in that, The top plate and bottom plate of the second main load-bearing rectangular tube (2) are welded to the upper rib plate (5) and the lower rib plate (6) respectively, and the two web plates of the second main load-bearing rectangular tube (2) are welded to the annular side plate (7).

4. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, It also includes two secondary force-bearing rectangular tubes (3), which are symmetrical about the annular side plate (7). The top plate and bottom plate of the secondary force-bearing rectangular tubes (3) are fixed to the upper rib plate (5) and the lower rib plate (6) respectively. Both webs of the secondary force-bearing rectangular tubes (3) are fixed to the annular side plate (7).

5. A connection joint for a support of a long-span steel latticed shell according to claim 4, characterized in that, The top plate and bottom plate of the secondary stressed rectangular tube (3) are welded to the upper rib plate (5) and the lower rib plate (6) respectively, and the two web plates of the secondary stressed rectangular tube (3) are welded to the annular side plate (7).

6. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, Both the upper rib (5) and the lower rib (6) are round steel plates.

7. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, Both ends of the inner rib plate (8) are welded to the annular side plate (7).

8. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, The inner rib (8) and the lower rib (6) are planed flat and tightened together.

9. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, The top plate and bottom plate of the first main load-bearing rectangular tube (1) are welded to the upper rib plate (5) and the lower rib plate (6), respectively.

10. The support connection joint of a long-span steel latticed shell according to claim 1, characterized in that, Both webs of the first main load-bearing rectangular tube (1) are welded to the annular side plate (7).

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