Connecting structure for supporting nodes of large steel structure tree

Abstract

The utility model relates to the technical field of steel structure nodes, and discloses a connecting structure of large steel structure tree supporting nodes, which comprises a plurality of main tree trunks and a plurality of components, and first connecting units and second connecting units for connection are arranged between the main tree trunks and the components and between the components. The first connecting unit comprises at least two or more supporting pipes, and the supporting pipes are connected through penetration welding. The second connecting unit comprises a connecting flange arranged at the end of the component or the supporting pipe and a connecting bolt used for fixing. In practical application, the utility model provides a node connecting structure which is attractive in appearance and simple and efficient in construction aiming at an indoor large steel structure tree.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure nodes, in particular to a connection structure of a large steel structure tree support node. Background Art

[0002] Most traditional steel structure trees are small in size, have few branches, and simple structures. They are mostly used as landscape trees for viewing and decoration. However, with the continuous innovation and breakthroughs in modern architectural design concepts, the decorative art of interior space is gradually tending towards ecological expression. Therefore, the applicant designed a large indoor steel structure tree with a height of more than 25 meters and a crown coverage diameter of more than 40 meters. There are many branches and trunks that need to be connected. In the existing steel structure tree, the branches and trunks are mainly connected by welding through inserted node plates. Since the overall volume of the steel structure tree designed by the applicant is relatively large, the steel structure tree formed by the traditional connection structure is not only stiff at the nodes, but also the inserted plates make the whole look very messy and poor in aesthetics. Compared with the traditional small steel structure tree, the indoor large steel structure tree has a large number of nodes, the construction efficiency of the traditional connection structure is too low, and the overall construction is difficult.

[0003] In order to solve the above problems, this solution provides a node connection structure suitable for large steel structure trees. Utility Model Content

[0004] The utility model aims to provide a connection structure of a large steel structure tree support node, so as to provide a node connection structure with beautiful appearance, simple and efficient construction for indoor large steel structure trees.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: a connection structure of a large steel structure tree support node, including multiple main trunks and multiple components, wherein a first connection unit and a second connection unit for connection are provided between the main trunks and the components, and between the components, wherein the first connection unit includes at least two support tubes, and the support tubes are connected by intersecting welding; the second connection unit includes a connection flange arranged at the end of the component or the support tube and a connection bolt for fixing.

[0006] The principles and advantages of this solution are:

[0007] 1. In practical application, compared with the prior art which uses an inserted node plate and then welds, the multiple support pipes of the first connection unit in this solution are connected by intersecting welding, so that the node structure transition of adjacent components is smoother, the overall appearance is more beautiful and more ornamental; and the intersecting welding of this solution increases the length of the weld between the main pipe and the secondary pipe in the support pipe, so that the force at the node is more reasonable and uniform, and the support stability is better.

[0008] 2. In actual application, the utility model adopts the first connection unit and the second connection unit to install the steel structure tree. Compared with the traditional full welding construction, this scheme adopts bolt connection and fixation for the steel pipe nodes in the same direction of adjacent components, which not only greatly reduces the number of on-site welding, but also bolt fixation is more convenient than welding fixation, which reduces the overall construction difficulty and improves the construction efficiency.

[0009] Furthermore, a reinforcing rib plate is provided between two adjacent support tubes.

[0010] The connection between the supporting pipes is made more stable by reinforcing the rib plates, thereby improving the stress strength at the nodes.

[0011] Furthermore, the component and the support tube are both provided with positioning scale lines, and a plurality of positioning holes are opened along the positioning scale lines.

[0012] During the component installation process, the installation positions of the two components are butted together through positioning scale lines and positioning holes, which reduces the frequency of deviation correction during the installation process and improves installation efficiency.

[0013] Furthermore, one end of the support pipe for intersecting welding is provided with a single-sided V-shaped or Y-shaped groove along the welding intersecting line.

[0014] The above-mentioned setting is to ensure complete penetration of the welding joint and improve the supporting stability of the welding joint and the bifurcation point of the steel structure tree.

[0015] Furthermore, the plurality of main trunks are divided into a central main trunk and a plurality of auxiliary main trunks evenly distributed along the circumference of the central main trunk, and ends of the plurality of auxiliary main trunks away from the ground are all connected to the central main trunk.

[0016] The above arrangement increases the installation stability of the central main trunk by assisting the main trunk, ensuring the main load-bearing function of the central main trunk on the overall crown, making the steel structure tree more stable as a whole.

[0017] Furthermore, the plurality of main trunks also include a plurality of supporting main trunks distributed around the central main trunk, and the supporting main trunks extend upward to be connected with the tree crown.

[0018] The upper end of the supporting main trunk is connected to the crown supported by the central main trunk, ensuring support for the crown all around, while also reducing the pressure on the central main trunk and making the overall structure of the crown more stable.

[0019] Furthermore, the auxiliary main trunks are distributed up and down at different heights along the central main trunk.

[0020] The above arrangement disperses the weight and wind load borne by the central main trunk through the hierarchical support of multiple auxiliary main trunks at different heights, reduces single-point stress concentration, and further improves the stability of the overall steel structure tree. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0022] Figure 2 Schematic diagram of the first connection unit of the embodiment of the utility model Figure 1 .

[0023] Figure 3 Schematic diagram of the first connection unit of the embodiment of the utility model Figure 2 .

[0024] Figure 4 It is a schematic diagram of a second connection unit according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0025] The following is further described in detail through specific implementation methods:

[0026] The figure marks in the drawings of the specification include: central main trunk 1, auxiliary main trunk 2, supporting main trunk 3, component 4, first connecting unit 5, supporting tube 51, reinforcing rib plate 52, second connecting unit 6, connecting flange 61, connecting bolt 62, positioning hole 7.

[0027] Example

[0028] A connection structure for supporting nodes of a large steel structure tree, such as Figure 1 As shown, it includes multiple main trunks and multiple components 4, and first connecting units 5 and second connecting units 6 are provided between the main trunks and the components 4, and between the components 4 to connect and fix them; Figure 2 , Figure 3 As shown in the combination, the first connection unit 5 includes at least two or more support tubes 51, and the multiple support tubes 51 are connected and fixed by intersecting welding. One end of the support tube 51 for intersecting welding is provided with a single-sided V-shaped or Y-shaped groove along the intersecting line to ensure complete penetration at the welding joint and improve the stability of the welding joint and the bifurcation point of the steel structure tree; a reinforcing rib plate 52 is welded between two adjacent support tubes 51 to ensure that the weight of the connection structure at the node and the overall crown is reduced while improving the force strength of the support node, so that the transition of the node structure is smoother and more beautiful; the pipe body of the component 4 and the support tube 51 is provided with a positioning scale line engraved by laser, and the depth of the positioning scale line is 1mm. The component 4 and the support tube 51 are evenly provided with a plurality of positioning holes 7 along the positioning scale line, which is convenient for positioning through the positioning holes 7 during on-site installation, reducing the frequency of correction during installation and improving installation efficiency.

[0029] like Figure 1 , Figure 4As shown in combination, the second connecting unit 6 is used to connect the steel pipes in the same direction of two adjacent components 4. The second connecting unit 6 includes a connecting flange 61 welded and fixed to the end of the component 4 or the support tube 51 and a connecting bolt 62 for fixing the connecting flange 61. The nominal diameter of the connecting flange 61 is equal to the nominal diameter of the steel pipe of the adjacent component 4. At least four or more threaded through holes are evenly opened on the connecting flange 61. In this embodiment, friction-type high-strength bolts are used to ensure the connection strength of the second connecting unit 6 and prevent connection slippage of the adjacent components 4.

[0030] like Figure 1 As shown, the multiple main trunks are divided into a central main trunk 1, multiple auxiliary main trunks 2 and multiple supporting main trunks 3. The auxiliary main trunks 2 and the supporting main trunks 3 are connected and extended by multiple components 4 through a first connecting unit 5 and a second connecting unit 6; the central main trunk 1 is located at the center of the steel structure tree and plays a major load-bearing role; the auxiliary main trunks 2 mainly provide stable support for the central main trunk 1, there are at least three auxiliary main trunks 2 and they are evenly supported and connected along the circumference of the central main trunk 1, the end of the auxiliary main trunk 2 away from the ground is connected to the central main trunk 1, and the auxiliary main trunks 2 are distributed up and down at different heights along the central main trunk 1; the supporting main trunks 3 are distributed around the central main trunk 1, and the upper end of the supporting main trunk 3 extends to be connected to the crown, which is used to support the forces around the crown, so that the load-bearing stability of the steel structure tree is further ensured under the joint action of the central main trunk 1, the auxiliary main trunks 2 and the supporting main trunks 3.

[0031] The specific implementation process is as follows:

[0032] In specific applications, after the central main trunk 1 is fixed, multiple auxiliary main trunks 2 are installed circumferentially along different heights of the central main trunk 1, and then multiple supporting main trunks 3 are fixed around the central main trunk 1; after the main trunk is fixed, the upper crown is installed. Specifically, according to the shape of the branch or trunk, the component 4 is lifted by a fork-type hydraulic truck, and the two sections of the components 4 to be assembled are connected. The connection position is connected according to the positioning scale line and the positioning hole 7 preset in the processing. During the connection process, the connection positions of the two adjacent components 4 are continuously adjusted to be accurately connected, and then they are fixed one by one by connecting bolts 62 until a group of branches or trunks are formed.

[0033] The above is only an embodiment of the utility model, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A connection structure of a large steel structure tree support node, comprising a plurality of main trunks and a plurality of components, characterized in that: A first connecting unit and a second connecting unit for connection are provided between the main trunk and the components, and between the components. The first connecting unit includes at least two support tubes, and the support tubes are connected by intersecting welding; the second connecting unit includes a connecting flange arranged at the end of the component or the support tube and a connecting bolt for fixing.

2. The connection structure of a large steel structure tree support node according to claim 1, characterized in that: A reinforcing rib plate is provided between two adjacent support tubes.

3. The connection structure of a large steel structure tree support node according to claim 2, characterized in that: The component and the support tube are both provided with positioning scale lines, and a plurality of positioning holes are opened along the positioning scale lines.

4. The connection structure of a large steel structure tree support node according to claim 3, characterized in that: One end of the support pipe for intersecting welding is provided with a single-sided V-shaped or Y-shaped groove along the welding intersecting line.

5. The connection structure of a large steel structure tree support node according to claim 4, characterized in that: The multiple main trunks are divided into a central main trunk and multiple auxiliary main trunks evenly distributed along the circumference of the central main trunk, and the ends of the multiple auxiliary main trunks away from the ground are all connected to the central main trunk.

6. The connection structure of a large steel structure tree support node according to claim 5, characterized in that: The plurality of main trunks also include a plurality of supporting main trunks distributed around the central main trunk, and the supporting main trunks extend upward and are connected to the tree crown.

7. The connection structure of a large steel structure tree support node according to claim 6, characterized in that: The auxiliary main trunks are distributed up and down at different heights along the central main trunk.

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