A steel structure in the atrium

Abstract

The utility model relates to the field of steel structures, and specifically to an atrium steel structure, which is formed into a hollow tree shape by a plurality of steel parts intersecting each other, the bottom end of the tree root is fixed to the atrium ground through the lower column foot, the edge of the tree crown extends upward and is fixed to the building walls around the atrium through the top column foot, a junction pipe is arranged at the node where the steel parts intersect, the steel parts are fixed to the outer wall of the junction pipe, the steel parts include a joint rod connected to the junction pipe and a main rod connected between the two joint rods, and the wall thickness of the joint rod is greater than that of the main rod. The utility model can solve the problem of poor structural strength at the node of the existing atrium tree-shaped landscape network steel parts.

Description

Technical Field

[0001] The utility model relates to the field of steel structures, in particular to an atrium steel structure. Background Art

[0002] With the continuous advancement of architectural design concepts and the increasing aesthetic needs, the landscape design of the atrium, as a shared space inside the building, has become an important part of showing architectural aesthetics. In many atrium landscape designs, the introduction of elements that simulate natural ecology, such as tree-shaped landscape nets, has become a popular trend to enhance the space's ornamental value and artistic atmosphere.

[0003] For example, a courtyard landscape network developed by the applicant (such as Figure 1 The overall shape of the landscape net is a hollow tree, with the roots of the landscape net fixed to the ground in the atrium, and the edge of the tree canopy extending upward to the building wall on the floor above the atrium, thus forming a three-dimensional art installation that imitates the outline of a natural tree. However, during the research and development process, the applicant discovered that the design exposed several technical limitations:

[0004] 1. Processing complexity: The landscape network is fixedly connected to other steel parts by twisting and bending steel parts at the nodes. The applicant found in the actual production process that this process is not only complicated, but also requires additional steps to accurately complete the bending and fixing of steel parts, which increases manufacturing costs. In addition, the increase in processing complexity directly leads to a decrease in production efficiency, which increases the overall project cost.

[0005] 2. Structural strength issues: In terms of node processing, although the twisting and bending of steel parts completes the connection, this processing method creates structural weaknesses at the bends. Due to stress concentration in the bending area, metal fatigue is prone to occur, accelerating material damage, thereby significantly shortening the service life of the entire landscape network and affecting the safety and durability of the structure. Utility Model Content

[0006] The utility model aims to provide an atrium steel structure to solve the problem of poor structural strength at the nodes of the existing atrium tree-shaped landscape network steel parts.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A atrium steel structure is formed by a plurality of steel parts intersecting to form a hollow tree shape. The bottom end of the tree root is fixed to the atrium ground through the lower column foot, and the edge of the tree crown extends upward and is fixed to the building walls around the atrium through the top column foot. A junction pipe is arranged at the node where the steel parts intersect, and the steel parts are fixed to the outer wall of the junction pipe. The steel parts include a joint rod connected to the junction pipe and a main rod connected between the two joint rods, and the wall thickness of the joint rod is greater than the wall thickness of the main rod.

[0009] Preferably, as an improvement, cover plates are provided on the top and bottom of the manifold, and a plurality of I-beams are fixed in the manifold, and the I-beams are arranged along the radial direction of the manifold.

[0010] Preferably, as an improvement, an upper inner partition is connected between the middle parts of the upper flanges of two adjacent I-beams, a lower inner partition is connected between the middle parts of the lower flanges of two adjacent I-beams, and a vertical inner partition is connected between the upper inner partition and the lower inner partition.

[0011] Preferably, as an improvement, the wall thickness of the steel member at the root portion is smaller than the wall thickness of the steel member at the crown portion.

[0012] Preferably, as an improvement, the top column base includes a top steel column, a top base plate is fixed to the bottom end of the top steel column, a fine stone concrete layer is cast on the bottom of the top base plate, a plurality of top column base anchor bolts are connected to the top base plate, a top steel column cover is arranged outside the top column base anchor bolts, a mounting hole is opened on the side of the bottom of the top steel column, a top casting hole is opened on the upper part of the top steel column, concrete is cast in the top steel column below the top casting hole, a cross partition is arranged in the top steel column above the top casting hole, a plurality of top bolts are radially arranged on the outer wall of the top steel column below the top casting hole, a concrete column is wrapped on the top steel column below the top casting hole, the top bolts are covered in the concrete column, and a plurality of top column base stirrups are arranged in the concrete column.

[0013] Preferably, as an improvement, the wall thickness of the top steel column below the casting hole is smaller than the wall thickness of the top steel column above the casting hole.

[0014] Preferably, as an improvement, the lower column foot includes a lower steel column, a lower bottom plate is fixed to the bottom end of the lower steel column, a plurality of reinforcing rib plates are connected between the lower bottom plate and the lower steel column, a plurality of lower column foot anchor bolts are connected to the lower bottom plate, the lower column foot anchor bolts are located outside the lower steel column, a pre-embedded I-beam is connected to the bottom of the lower bottom plate, a lower casting hole is opened on the upper part of the lower steel column, concrete is cast in the lower steel column, a plurality of lower bolts are radially fixed on the outer wall of the lower steel column below the lower casting hole, a concrete layer is coated on the lower steel column below the lower casting hole, the lower bolts are coated in the concrete layer, and a plurality of lower column foot stirrups are arranged in the concrete layer.

[0015] The principles and beneficial effects of this scheme are:

[0016] 1. The present application sets a junction tube at the node where the steel parts intersect. The steel parts are directly fixed to the outer wall of the junction tube, and there is no need to perform any bending treatment on the steel parts themselves, which greatly simplifies the processing flow. The introduction of the junction tube makes the node connection more direct and efficient, significantly reducing the processing cost and complexity. On this basis, the wall thickness of the steel parts adopts a differentiated design, that is, the wall thickness of the joint rod (the part connected to the junction tube) is thicker than the main rod, ensuring the mechanical strength of the intersection node area, effectively preventing structural damage caused by stress concentration, while keeping the overall structure lightweight for easy transportation and installation. In addition, since there is no need to twist and bend the steel parts, there will be no problem of steel parts being easily damaged at the nodes due to twisting and bending, thereby increasing the life of the steel parts.

[0017] 2. Multiple I-beams are arranged in the manifold, and an upper inner partition is connected between the middle parts of the upper flanges of two adjacent I-beams, and a lower inner partition is connected between the middle parts of the lower flanges of two adjacent I-beams. A vertical inner partition is also connected between the upper inner partition and the lower inner partition, which significantly enhances the stability and load-bearing capacity of the manifold, further consolidates the structural strength of the cross-nodes of the steel parts, and ensures the stability and durability of the entire steel structure.

[0018] 3. In view of the different stress characteristics of the crown and the root, this solution adopts a differentiated wall thickness design. The crown part, due to its large volume and diffuse structure, has a thicker steel wall than the root part to meet higher load requirements. This design not only ensures the mechanical balance of the overall structure, but also effectively controls the cost while ensuring safety.

[0019] 4. The edge of the tree crown is firmly connected to the atrium wall through the top column foot. The top column foot adopts a composite structure of cast concrete in a steel column, plus a concrete column shell, and is equipped with top studs, column stirrups and fine stone concrete layers, which greatly improves the structural strength and stability of the column foot. The design of the mounting hole facilitates the installation of the top column foot anchor bolts and ensures the convenience of construction. Similarly, the lower column foot also adopts a similar reinforcement design to ensure the stable installation of the tree root part.

[0020] 5. In the design of the top steel column, through differentiated wall thickness design, that is, the wall thickness of the part below the pouring hole is smaller than that of the part above the pouring hole, the optimal utilization of materials is further realized, the cost is effectively controlled, and the deadweight of the structure is reduced, which is beneficial to improving the economy and safety of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the atrium landscape network mentioned in the background technology.

[0022] Figure 2 This is a schematic diagram of the structure of Example 1 of the utility model.

[0023] Figure 3This is a schematic diagram of the structure at the intersection node of the steel parts in Example 1 of the utility model.

[0024] Figure 4 for Figure 3 AA schematic diagram of .

[0025] Figure 5 This is a cross-sectional view of the top column base.

[0026] Figure 6 for Figure 5 AA schematic diagram of .

[0027] Figure 7 for Figure 5 Schematic diagram of bb.

[0028] Figure 8 This is a cross-sectional view of the lower column base.

[0029] Fig. 9 for Figure 8 Schematic diagram of bb. DETAILED DESCRIPTION

[0030] The following is further described in detail through specific implementation methods:

[0031] The figure marks in the drawings of the specification include: tree root 1, tree crown 2, top column base 3, top steel column 30, top bolt 31, top column base column stirrup 32, fine stone concrete layer 33, top column base anchor 34, top base plate 35, mounting hole 36, concrete column 37, cross partition 38, lower column base 4, lower steel column 40, lower casting hole 41, lower bolt 42, reinforcing rib plate 43, lower column base anchor 44, embedded I-beam 45, lower base plate 46, lower column base column stirrup 47, concrete layer 48, steel part 5, joint rod 51, main rod 52, junction pipe 6, I-beam 61, upper inner partition 62, vertical inner partition 63, lower inner partition 64.

[0032] Embodiment 1:

[0033] like Figure 2 , Figure 3 and Figure 4 As shown, an atrium steel structure is formed by a plurality of steel members 5 crossing each other to form a hollow tree shape, the bottom end of the tree root 1 is fixed to the atrium ground through the lower column foot 4, the edge of the tree crown 2 extends upward and outward and is fixed to the building walls around the atrium through the top column foot 3, and the wall thickness of the steel member 5 of the tree root 1 is smaller than the wall thickness of the steel member 5 of the tree crown 2.

[0034] A manifold 6 is provided at the node where the steel parts 5 intersect. The steel parts 5 at the intersection are welded to the outer wall of the manifold 6. The steel parts 5 include a joint rod 51 connected to the manifold 6 and a main body rod 52 welded between two joint rods 51. The joint rod 51 and the main body rod 52 have the same outer diameter, but the wall thickness of the joint rod 51 is greater than that of the main body rod 52. Cover plates are welded to the top and bottom of the manifold 6. A plurality of I-beams 61 are welded inside the manifold 6. The upper flange of the I-beam 61 is at the top and the lower flange is at the bottom. The I-beams 61 are arranged along the radial direction of the manifold 6. An upper inner baffle 62 is welded between the middle parts of the upper flanges of two adjacent I-beams 61. A lower inner baffle 64 is welded between the middle parts of the lower flanges of two adjacent I-beams 61. A vertical inner baffle 63 is connected between the upper inner baffle 62 and the lower inner baffle 64.

[0035] Combination Figure 5 , Figure 6 and Figure 7 As shown, the top column foot 3 includes a top steel column 30, a top base plate 35 is welded to the bottom end of the top steel column 30, a fine stone concrete layer 33 is cast at the bottom of the top base plate 35, a plurality of top column foot anchor bolts 34 are bolted to the top base plate 35, the top column foot anchor bolts 34 are pre-buried in the building walls around the atrium, the top steel column 30 is covered outside the top column foot anchor bolts 34, a mounting hole 36 is opened on the bottom side of the top steel column 30, a top casting hole is opened on the upper part of the top steel column 30, concrete is cast in the top steel column 30 below the top casting hole, a cross partition 38 is welded in the top steel column 30 above the top casting hole, a plurality of top studs 31 are radially welded on the outer wall of the top steel column 30 below the top casting hole, a concrete column 37 is wrapped on the top steel column 30 below the top casting hole, the top studs 31 are wrapped in the concrete column 37, and a plurality of top column foot stirrups 32 are arranged in the concrete column 37.

[0036] Combination Figure 8 and Fig. 9 As shown, the lower column foot 4 includes a lower steel column 40, a lower bottom plate 46 is welded to the bottom end of the lower steel column 40, a plurality of reinforcing rib plates 43 are uniformly welded between the lower bottom plate 46 and the lower steel column 40, a plurality of lower column foot anchor bolts 44 are bolted to the lower bottom plate 46, the lower column foot anchor bolts 44 are located outside the lower steel column 40, and a pre-buried I-beam 45 is welded to the bottom of the lower bottom plate 46, and the lower column foot anchor bolts 44 and the pre-buried I-beam 45 are uniformly welded to the lower steel column 40. Embedded under the atrium floor, a lower casting hole 41 is opened on the upper part of the lower steel column 40, concrete is cast in the lower steel column 40, a plurality of lower bolts 42 are radially welded on the outer wall of the lower steel column 40 below the lower casting hole 41, a concrete layer 48 is wrapped on the lower steel column 40 below the lower casting hole 41, the lower bolts 42 are covered in the concrete layer 48, and a plurality of lower column foot stirrups 47 are arranged in the concrete layer 48.

[0037] In actual use, the bottom end of the tree root 1 is installed on the ground of the atrium through the lower column foot 4. During installation, the lower column foot anchor bolt 44 is first pre-buried under the ground of the atrium. After the lower column foot anchor bolt 44 is installed, the lower bottom plate 46 and the lower steel column 40 are connected to the lower column foot anchor bolt 44 by bolts, and then concrete is poured inside and outside the lower steel column 40 to complete the installation of the lower column foot 4. The crown 2 is installed on the building walls around the atrium through the top column foot 3. In this embodiment, it is specifically installed on the building wall of the third floor around the atrium. Similarly, the top column foot anchor bolt 34 is first pre-buried during installation. After the top column foot anchor bolt 34 is installed, the top bottom plate 35 and the top steel column 30 are connected to the top column foot anchor bolt 34 by bolts. After connection, the side plate is welded at the installation hole 36 to close the installation hole 36. Then concrete is poured inside and outside the top steel column 30 to complete the installation of the top column foot 3, thereby completing the installation of the entire steel structure.

[0038] The atrium steel structure of the present application is formed into a hollow tree shape by crossing a number of steel parts 5. The nodes where the steel parts 5 cross are connected by a junction pipe 6. Each steel part 5 is welded to the outer wall of the junction pipe 6. Compared with the method of using a whole steel part 5 to cross to form a hollow tree shape, the present application connects the steel parts 5 at the nodes by the junction pipe 6. There is no need to twist the steel parts 5, the processing is simple, and the life of the steel parts 5 is avoided from being shortened due to twisting.

[0039] Embodiment 2:

[0040] The difference between this embodiment and embodiment 1 is that the wall thickness of the top steel column 30 below the top casting hole is smaller than the wall thickness of the top steel column 30 above the top casting hole. No concrete is poured in the top column foot 3 above the top casting hole, so increasing the wall thickness can improve the force effect.

[0041] 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. An atrium steel structure, characterized in that: A hollow tree shape is formed by the intersection of several steel parts. The bottom of the tree root is fixed to the atrium ground through the lower column foot, and the edge of the tree crown extends upward and is fixed to the building walls around the atrium through the top column foot. A junction tube is provided at the node where the steel parts intersect, and the steel parts are fixed to the outer wall of the junction tube. The steel parts include a joint rod connected to the junction tube and a main rod connected between the two joint rods, and the wall thickness of the joint rod is greater than the wall thickness of the main rod.

2. The atrium steel structure according to claim 1, characterized in that: Cover plates are arranged on the top and bottom of the manifold, and a plurality of I-beams are fixed in the manifold, and the I-beams are arranged along the radial direction of the manifold.

3. The atrium steel structure according to claim 2, characterized in that: An upper inner partition is connected between the middle parts of the upper flanges of two adjacent I-beams, a lower inner partition is connected between the middle parts of the lower flanges of two adjacent I-beams, and a vertical inner partition is connected between the upper inner partition and the lower inner partition.

4. The atrium steel structure according to claim 3, characterized in that: The wall thickness of the steel member at the root portion is smaller than the wall thickness of the steel member at the crown portion.

5. The atrium steel structure according to claim 4, characterized in that: The top column foot includes a top steel column, a top base plate is fixed at the bottom end of the top steel column, a fine stone concrete layer is cast at the bottom of the top base plate, a plurality of top column foot anchor bolts are connected to the top base plate, a top steel column cover is arranged outside the top column foot anchor bolts, a mounting hole is opened on the bottom side of the top steel column, a top casting hole is opened on the upper part of the top steel column, concrete is cast in the top steel column below the top casting hole, a cross partition is arranged in the top steel column above the top casting hole, a plurality of top bolts are radially arranged on the outer wall of the top steel column below the top casting hole, a concrete column is wrapped on the top steel column below the top casting hole, the top bolts are covered in the concrete column, and a plurality of top column foot stirrups are arranged in the concrete column.

6. The atrium steel structure according to claim 5, characterized in that: The wall thickness of the top steel column below the casting hole is smaller than the wall thickness of the top steel column above the casting hole.

7. The atrium steel structure according to claim 6, characterized in that: The lower column foot includes a lower steel column, a lower bottom plate is fixed to the bottom end of the lower steel column, a plurality of reinforcing rib plates are connected between the lower bottom plate and the lower steel column, a plurality of lower column foot anchor bolts are connected to the lower bottom plate, the lower column foot anchor bolts are located outside the lower steel column, a pre-buried I-beam is connected to the bottom of the lower bottom plate, a lower casting hole is opened on the upper part of the lower steel column, concrete is cast in the lower steel column, a plurality of lower bolts are radially fixed on the outer wall of the lower steel column below the lower casting hole, a concrete layer is wrapped on the lower steel column below the lower casting hole, the lower bolts are covered in the concrete layer, and a plurality of lower column foot stirrups are arranged in the concrete layer.

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