CN108868002B - Polygonal steel column structure and net rack - Google Patents

Abstract

The invention discloses a polygonal steel column structure, which comprises a plurality of hollow steel column units, wherein each steel column unit is sequentially overlapped and connected to form the hollow steel column structure, each steel column unit comprises at least one first steel column component and a plurality of second steel column components which are sequentially connected in a surrounding manner, the first second steel column component is connected to one side of the first steel column component, and the last second steel column component is connected to the other side of the first steel column component, so that the steel column units form an annular structure. In addition, the invention also discloses a net rack with the polygonal steel column structure. The polygonal steel column structure and the net frame can be used for transporting the first steel column component and the second steel column component to the site respectively during actual construction, then assembling the first steel column component and the second steel column component into a plurality of steel column units, and then assembling the plurality of steel column units to form the steel column structure.

Description

Polygonal steel column structure and net rack

Technical Field

The invention relates to the technical field of constructional engineering, in particular to a polygonal steel column structure and a net rack.

Background

With the development of technology, steel structures are becoming more and more widely used in building construction, especially for certain large buildings. Steel structures have low cost and high quality advantages in design, construction, use and overall economy, and therefore have become the preferred structural materials and forms for many building structures.

At present, most steel columns of the steel structure are often formed in a hot rolling mode or formed by cutting and welding steel plates, the processing mode is complicated, and the steel columns are large in size and heavy in mass, so that a plurality of inconveniences are brought to production, installation and transportation; in addition, most steel columns of steel structures are complicated in structural design because connection with an upper net frame needs to be fully considered in design.

Disclosure of Invention

The embodiment of the invention discloses a polygonal steel column structure and a net rack, which are simple in structure, convenient to manufacture and convenient to transport and install.

In order to achieve the above objective, in a first aspect, the present invention provides a polygonal steel column structure, in which each steel column unit is sequentially stacked and connected to form a steel column structure, and each steel column unit includes at least one first steel column component and a plurality of second steel column components sequentially surrounding and connected, where a first one of the second steel column components is connected to one side of the first steel column component, and a last one of the second steel column components is connected to the other side of the first steel column component, so that the steel column units form an annular structure.

As an alternative embodiment, in the embodiment of the first aspect of the present invention, two adjacent stacked steel column units share the same plane in the height direction of the steel column structure.

In an embodiment of the first aspect of the present invention, the plurality of steel column units include a part of first steel column units and another part of second steel column units, each of the second steel column units is respectively stacked between two first steel column units that are arranged at intervals, and each of the first steel column units and the second steel column units is a hollow ring structure; along the direction of height of steel column structure, each first steel column unit all includes first anchor ring and first anchor ring down, each second steel column unit all includes second anchor ring and second anchor ring down, the projection of first anchor ring on first anchor ring down with first anchor ring partial or complete coincidence, second anchor ring down with first anchor ring sharing the same face, second anchor ring and another first anchor ring that is located its upper portion share the same face.

In an embodiment of the first aspect of the present invention, the first upper ring surface, the first lower ring surface, the second upper ring surface and the second lower ring surface are polygonal planes, and the planar shape of the first lower ring surface is the same as or different from that of the first upper ring surface, the planar shape of the second lower ring surface is the same as that of the first upper ring surface, and the planar shape of the second upper ring surface is the same as that of the first lower ring surface.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first steel column component is a first planar structure, the second steel column component is a second planar structure, and the second planar structure is the same or different structure from the first planar structure.

In an optional implementation manner, in an embodiment of the first aspect of the present invention, the first steel column component is one, and each of the second steel column components is sequentially connected in a surrounding manner.

In an embodiment of the first aspect of the present invention, the number of the first steel column assemblies is several, two adjacent first steel column assemblies are arranged at intervals, two adjacent second steel column assemblies are arranged at intervals, and the second steel column assemblies are connected between the two adjacent first steel column assemblies.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first steel column unit and the second steel column unit each include the first steel column component and the second steel column component, where the first steel column component is a first planar structure, and the second steel column component is a second planar structure, and the second planar structure is the same as or different from the first planar structure.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, the first steel column assembly includes a plurality of first rods connected end to form the first planar structure, and the second steel column assembly includes a plurality of second rods, where the second steel column assembly shares at least one first rod with the first steel column assembly connected thereto, and two second steel column assemblies connected to each other share at least one second rod.

Specifically, at least two second rod pieces of a first steel column assembly and any one of the first rod pieces are connected to form the second plane structure; at least two second rod pieces of the last second steel column assembly are connected with any one of the other two first rod pieces, and the second plane structure is formed; at least two second rod pieces of each remaining second steel column assembly are respectively connected with any one of the second rod pieces of the second steel column assemblies adjacent to the second rod pieces, and the second plane structure is formed.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first steel column assembly further includes a plurality of first ball nodes, the second steel column assembly further includes a plurality of second ball nodes, any two first rods of the same first steel column assembly are hinged through the first ball nodes, at least one second rod of the second steel column assembly and at least one first rod of the first steel column assembly connected with the second rod of the second steel column assembly share the same first ball node, and two second steel column assemblies connected with each other share at least one second ball node.

One end of at least two connected second rods of the first and last second steel column assemblies is respectively connected with two first ball nodes of the first steel column assemblies, at least two connected second rods of the first second steel column assemblies are respectively connected with the second ball nodes and the first ball nodes, and at least two connected second rods of the rest second steel column assemblies are respectively connected with the second ball nodes.

The first ball node is provided with a plurality of first rotating holes, and the end parts of the first rod pieces are respectively connected in the first rotating holes in a rotating way; the second ball node is provided with a plurality of second rotating holes, and the end parts of the second rod pieces are respectively connected in the second rotating holes in a rotating mode.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, a planar shape of the first lower torus is the same as that of the first upper torus, and a projection of the first upper torus on the first lower torus is completely overlapped with the first lower torus, a projection of the first ball node located on the first upper torus on the first lower torus is overlapped with the first ball node located on the first lower torus, and a projection of each second ball node located on the first upper torus on the first lower torus is overlapped with the corresponding second ball node located on the first lower torus.

In an embodiment of the first aspect of the present invention, in a height direction of the steel column structure, any one of the second rods of each of the second steel column assemblies of the first steel column unit is sequentially connected to form the first lower ring surface, and any one of the first rods of the first steel column unit is sequentially connected to any one of the second rods of each of the second steel column assemblies to form the first upper ring surface.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, in a height direction of the steel column structure, any one of the first ball nodes of the second steel column unit and the first ball node of the first steel column unit adjacent thereto share a same ball node, and all of the second ball nodes of the second steel column unit and all of the second ball nodes of the first steel column unit adjacent thereto share a same ball node.

As an alternative implementation manner, in an embodiment of the first aspect of the present invention, a planar shape of the first lower annulus is the same as that of the first upper annulus, and a projection of the first upper annulus on the first lower annulus partially coincides with the first lower annulus, a projection of the first ball node located on the first upper annulus on the first lower annulus is located at a center of one of the second rods forming the first lower annulus, and a projection of each of the second ball nodes located on the first upper annulus on the first lower annulus is located at a center of the other second rod corresponding thereto forming the first lower annulus.

Wherein the first upper ring surface and the first lower ring surface are triangular, quadrilateral, pentagonal, hexagonal or octagonal.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first steel column component is a first planar structure, and the second steel column component is a second planar structure, where the first planar structure and the second planar structure are both polygonal structures, and the second planar structure is a structure different from the first planar structure.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, each first steel column assembly includes a plurality of first rod members that are sequentially connected end to form the first planar structure, and each second steel column assembly includes a plurality of second rod members; the second steel column assemblies located between the two first steel column assemblies arranged at intervals share at least one first rod piece with the two first steel column assemblies respectively.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, each first steel column assembly further includes a plurality of first ball nodes, and two connected first rods of the same first steel column assembly are hinged to the same first ball node; the second steel column assembly and the first steel column assembly adjacent to the second steel column assembly respectively share at least two first ball nodes, and at least two second rods of the second steel column assembly are respectively hinged to the shared at least two first ball nodes.

In an embodiment of the first aspect of the present invention, in a height direction of the steel column structure, any one of the second rods of each of the second steel column assemblies of the first steel column unit is sequentially connected to form the first lower ring surface, and any one of the first rods of the first steel column unit is sequentially connected to any one of the second rods of each of the second steel column assemblies to form the first upper ring surface.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, in a height direction of the steel column structure, any one of the first ball nodes of the second steel column unit and the first ball node of the first steel column unit adjacent thereto share a same ball node, and all of the second ball nodes of the second steel column unit and all of the second ball nodes of the first steel column unit adjacent thereto share a same ball node.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, a projection of the first upper ring surface on the first lower ring surface is located inside the first lower ring surface, and a projection of each first ball node located on the first upper ring surface on the first lower ring surface is located at a center of the first rod corresponding to the first ball node, where the first lower ring surface is formed.

The first upper annular surface is triangular, and the first lower annular surface is hexagonal.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the steel column structure further includes a column top component, where the column top component extends upward from the first steel column component and the second steel column component of the steel column unit located at the topmost layer and converges at the same point.

In an optional implementation manner, in an embodiment of the first aspect of the present invention, the column top assembly includes a first connection node and a plurality of first connection rods, one end of each first connection rod is connected to the steel column unit located at the topmost layer, and the other end of each first connection rod is connected to the first connection node in a converging manner.

As an alternative embodiment, in the embodiment of the first aspect of the present invention, the column top assembly includes a first extension structure extending upward from the steel column unit located at the topmost layer, and a second extension structure extending outward from an edge of the steel column unit located at the topmost layer.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first extension structure includes a plurality of second connection rods and a plurality of second connection nodes, and the second extension structure includes a plurality of third connection rods and a plurality of third connection nodes;

One end of each second connecting rod piece is connected to the steel column unit positioned at the topmost layer, and the other ends of two adjacent second connecting rod pieces are converged and connected to the same second connecting node;

One end of each third connecting rod piece is connected to the edge of the steel column unit located at the topmost layer, the other end of each third connecting rod piece extends outwards from the edge of the steel column unit, and each third connecting node is arranged on the end of the other end of each third connecting rod piece.

As an alternative embodiment, in the example of the first aspect of the invention, the number of the second steel column components is k, wherein k is equal to or greater than 5, and the hollow ring diameter of the steel column unit is equal to or greater than 800mm.

In a second aspect, the present invention further provides a grid, which includes a grid main body and a plurality of polygonal steel column structures as described in the first aspect, where each of the polygonal steel column structures is used for supporting and fixing the grid main body.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

the polygonal steel column structure and the net frame are formed by sequentially stacking and connecting a plurality of steel column units through the arrangement of the steel column structure, and the steel column units are limited to be annular structures formed by sequentially connecting at least one first steel column component and a plurality of second steel column components. By adopting the mode, the whole structure of the steel column structure is simple, the first steel column component and the second steel column component can be transported to the site respectively during actual construction, then the reproduction site is assembled into a plurality of steel column units, and then a plurality of steel column units are assembled to form the steel column structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a polygonal steel column structure (the annular structure of the steel column unit is triangular) according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of another view of FIG. 1;

FIG. 3 is a top view of FIG. 2;

fig. 4 is a schematic structural view of another polygonal steel column structure (the annular structure of the steel column unit is square) according to the first embodiment of the present invention;

FIG. 5 is a schematic diagram of another view of FIG. 4;

FIG. 6 is a top view of FIG. 5;

Fig. 7 is a schematic structural view of another polygonal steel column structure (the ring structure of the steel column unit is pentagonal) according to the first embodiment of the present invention;

FIG. 8 is a schematic view of the other view of FIG. 7;

FIG. 9 is a top view of FIG. 8;

Fig. 10 is a schematic structural view of another polygonal steel column structure (the ring structure of the steel column unit is hexagonal) according to the first embodiment of the present invention;

FIG. 11 is a schematic view of the other view of FIG. 10;

FIG. 12 is a top view of FIG. 11;

FIG. 13 is a schematic view of a column top module according to a first embodiment of the present invention;

FIG. 14 is a schematic view of another post-top assembly according to a first embodiment of the present invention;

fig. 15 is a schematic view of another polygonal steel column structure according to the second embodiment of the present invention;

FIG. 16 is a schematic view of the other view of FIG. 15;

Fig. 17 is a top view of fig. 16.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present invention and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present invention will be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "mounted," "configured," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish between different devices, elements, or components (the particular species and configurations may be the same or different), and are not used to indicate or imply the relative importance and number of devices, elements, or components indicated. Unless otherwise indicated, the meaning of "a plurality" is two or more.

The following detailed description is made with reference to the accompanying drawings.

The embodiment of the invention provides a polygonal steel column structure 1, which comprises a plurality of hollow steel column units 10, wherein each steel column unit 10 is sequentially overlapped and connected to form the steel column structure 1, each steel column unit 10 comprises at least one first steel column component 11 and a plurality of second steel column components 12 which are sequentially connected in a surrounding manner, wherein the first second steel column component 12 is connected to one side of the first steel column component 11, and the last second steel column component 12 is connected to the other side of the first steel column component 11, so that the steel column units 10 form an annular structure.

In this embodiment, the number of the first steel column assemblies 11 is one, the number of the second steel column assemblies 12 is plural, and the plurality of the second steel column assemblies 12 are sequentially connected in a surrounding manner.

In order to satisfy the connection structure of the grid structure, the column section of the steel column structure 1 should not be too small, for example, should not be less than 800mm. That is, the hollow ring diameter of the steel column unit 10 is not preferably less than 800mm. Meanwhile, in order to ensure the column cross-sectional dimension of the steel column structure 1, the number of the plurality of second steel column assemblies 12 may be k, wherein k is equal to or greater than 5, i.e., the number of the second steel column assemblies 12 should not be less than 5. Also, preferably, the number of second steel column assemblies 12 may be singular, for example 5, 7, 9, 11, 13, 15 or more, etc. It will be appreciated that in other embodiments, the number of second steel column assemblies 12 may be a double number, such as 6, 8, 10 or more, etc. The column cross-sectional dimensions of the steel column structure 1 can be adjusted according to the actual grid configuration.

As shown in fig. 1, two adjacent stacked steel column units 10 share the same plane in the height direction of the steel column structure 1. Specifically, the plurality of steel column units 10 may include a portion of first steel column units 10a and another portion of second steel column units 10b, where each of the second steel column units 10b is respectively stacked between two first steel column units 10a disposed at intervals. That is, one second steel column unit 10b is stacked between every two first steel column units 10a, so that the second steel column unit 10b shares the same surface with both the first steel column units 10a adjacent thereto.

Further, the first steel column units 10a and the second steel column units 10b are hollow ring structures, each first steel column unit 10a includes a first upper ring surface 101 and a first lower ring surface 102 along the height direction of the steel column structure 1, each second steel column unit 10b includes a second upper ring surface 103 and a second lower ring surface 104, the projection of the first upper ring surface 101 on the first lower ring surface 102 partially or completely coincides with the first lower ring surface 102, the second lower ring surface 104 shares the same surface with the first upper ring surface 101, and the second upper ring surface 103 shares the same surface with the other first lower ring surface 102 located on the upper portion thereof. Specifically, the first upper ring surface 101, the first lower ring surface 102, the second upper ring surface 103 and the second lower ring surface 104 are polygonal planes, and the planar shape of the first lower ring surface 102 is the same as or different from that of the first upper ring surface 101, and since the second lower ring surface 104 and the first upper ring surface 101 share the same plane, the second upper ring surface 103 and the other first lower ring surface 102 adjacent thereto share the same plane, and therefore, the planar shape of the second lower ring surface 104 is the same as that of the first upper ring surface 101, and the planar shape of the second upper ring surface 103 is the same as that of the first lower ring surface 102.

Because the first steel column unit 10a and the second steel column unit 10b are hollow annular structures, the stacked steel column structure 1 is also hollow annular structure, so that the overall mass of the steel column structure 1 is light, steel can be effectively saved, and transportation is convenient.

Preferably, the first upper ring surface 101, the first lower ring surface 102, the second upper ring surface 103 and the second lower ring surface 104 can be triangular planes, quadrilateral planes, pentagonal planes, hexagonal planes, etc. As shown in fig. 3, the first upper ring surface 101, the first lower ring surface 102, the second upper ring surface 103 and the second lower ring surface 104 are triangular planes. As shown in fig. 6, the first upper ring surface 101, the first lower ring surface 102, the second upper ring surface 103 and the second lower ring surface 104 are quadrilateral planes; as shown in fig. 9, the first upper ring surface 101, the first lower ring surface 102, the second upper ring surface 103 and the second lower ring surface 104 are pentagonal planes; as shown in fig. 12, the first upper ring surface 101, the first lower ring surface 102, the second upper ring surface 103 and the second lower ring surface 104 are hexagonal planes.

In this embodiment, the first steel column unit 10a and the second steel column unit 10b each include the first steel column assembly 11 and the plurality of second steel column assemblies 12, wherein the first steel column assembly 11 has a first planar structure, the second steel column assembly 12 has a second planar structure, and the second planar structure is the same as or different from the first planar structure.

As shown in fig. 1, 4, 7 and 10, the number of the first steel column assemblies 11 is only one, the first steel column assemblies 11 can be used as the reference of the steel column unit 10, and the plurality of the second steel column assemblies 12 should be sequentially connected around the first steel column assemblies 11 to form a ring structure, at this time, the inner ring of the steel column unit 10 forms the hollow part of the steel column structure 1.

In this embodiment, the first steel column assembly 11 includes a plurality of first rods 11a that are sequentially connected end to form the first planar structure, the second steel column assemblies 12 each include a plurality of connected second rods 12a, the second steel column assemblies 12 adjacent to the first steel column assembly 11 share the same first rod 11a with the first steel column assembly 11, and the two second steel column assemblies 12 that are connected to each other share at least one second rod 12a. Specifically, at least two second rods 12a of the second steel column assembly 12 are connected with the same first rod 11a shared by the adjacent first steel column assemblies 11 to form a second planar structure, and at least two second rods 12a of one second steel column assembly 12 are connected with the same second rod 12a shared by the adjacent second steel column assembly 12 to form the second planar structure.

Further, as shown in fig. 1, at least two second bars 12a of the first and second steel column assemblies 12 are connected with any one of the first bars 11a to form the second planar structure, at least two second bars 12a of the last second steel column assembly 12 are connected with any one of the other two first bars 11a to form the second planar structure, and at least two second bars 12a of the remaining second steel column assemblies 12 are respectively connected with any one of the second bars 12a of the second steel column assemblies 12 adjacent thereto to form the second planar structure.

The first planar structure and the second planar structure are polygonal structures, the first planar structure can be any one of triangle, square (i.e. quadrilateral), pentagon, hexagon or octagon, the second planar structure can be any one of triangle, square (i.e. quadrilateral), pentagon, hexagon or octagon, and the second planar structure can be the same or different planar structure with the first planar structure. Preferably, as shown in fig. 1 and 2, the first planar structure and the second planar structure are both regular triangles, that is, the first steel column assembly 11 includes three first rods 11a, the three first rods 11a are sequentially connected end to form a regular triangle, the second steel column assembly 12 includes two connected second rods 12a, the two second rods 12a of the first second steel column assembly 12 are connected with one of the first rods 11a of the first steel column assembly 11 to form the regular triangle, and the two second rods 12a of the last second steel column assembly 12 are connected with one of the other two first rods 11a of the first steel column assembly 11 to form the regular triangle. Similarly, the two second bars 12a of the second steel column assembly 12 located in the middle (i.e., the remaining second steel column assemblies 12) are connected with one of the two second bars 12a of the second steel column assembly 12 adjacent thereto to form the regular triangle structure.

The first plane structure and the second plane structure adopt a triangle mode, and the stability of the triangle can be utilized to ensure the integral stability of the polygonal steel column structure 1, thereby ensuring the use safety of the polygonal steel column structure. It is understood that in other embodiments, the first planar structure and the second planar structure may be quadrilateral, pentagonal, or other polygonal structures.

Further, the first steel column assembly 11 further includes a plurality of first ball nodes 11c, the second steel column assembly 12 further includes a plurality of second ball nodes 12c, any two first rods 11a of the same first steel column assembly 11 are hinged through the first ball nodes 11c, at least one second rod 12a of the second steel column assembly 12 and at least one first rod 11a of the first steel column assembly 11 connected therewith share the same first ball node 11c, and at least one second ball node 12c is shared between two second steel column assemblies 12 connected with each other. Wherein, the first and last second steel column assemblies 12 respectively share at least two first ball nodes 11c with the first steel column assembly 11, and at least one second ball node 12c is shared between two adjacent second steel column assemblies 12.

Specifically, as shown in fig. 1, the first steel column assembly 11 includes three first ball nodes 11c, and the first and last second steel column assemblies 12 are respectively connected to two sides of the first steel column assembly 11, so that each of the first and last second steel column assemblies 12 includes one second ball node 12c, and two second rods 12c of each of the first and last second steel column assemblies 12 are respectively hinged to any two first ball nodes 11c of the first steel column assembly 11, while the rest of the second steel column assemblies 12 include three second ball nodes 12c, and at least two adjacent second steel column assemblies 12c share the same second ball node 12c, and the second rods 12a of the rest of the second steel column assemblies 12 are respectively hinged through the second ball nodes 12 c.

Adopt member and ball node articulated mode, can be through in time adjusting first member 11a and first ball node 11 c's angle of connection, and second member 12a and second ball node 12 c's angle of connection, come the combination and obtain various different space structure body types to make this steel column structure 1 can be applicable to different rack, the structure is more nimble, application scope is wider.

In addition, the first steel column component 11 and the second steel column component 12 are connected in a combined mode by adopting the rod piece and the ball joint, so that the rod piece and the ball joint have the advantages of light weight and small size, the transportation is convenient and quick, large machinery is not required for field installation, the convenience of transportation and installation is improved, and the installation cost is further reduced.

In this embodiment, in order to realize the hinge connection between the rod and the ball node, a plurality of first rotation holes (not shown) are provided on the first ball node 11c, and the end portion of each first rod 11a is rotatably connected to each first rotation hole, so as to realize the rotation of the end portion of the first rod 11a in the first rotation hole, so that the planar pattern of the first planar structure formed by the first rod 11a can be adjusted by adjusting the angle of the end portion of the first rod 11a relative to the first rotation hole. For example, when the rotational angle of the end portions of the three first bars 11a with respect to the first rotation hole is 60 °, the first planar structure is a regular triangle; when the rotation angle of the end portion of one first rod member 11a relative to the first rotation hole is 90 °, the rotation angle of the end portions of the other two first rod members 11a relative to the first rotation hole should be 45 °, and at this time, the first plane structure is a right triangle. Similarly, a plurality of second rotation holes (not shown) are provided on the second ball node 12c, and an end portion of each second rod 12a is rotatably connected to each second rotation hole. In this way, the planar pattern of the second planar structure formed by the second lever 12a can be adjusted by the rotation angle of the end portion thereof and the second rotation hole.

Further, the first rotation hole may be internally provided with a screw thread, and the end of the first rod 11a may be rotatably connected to the screw thread in the first rotation hole by a bolt to realize rotation of the end of the first rod 11a in the first rotation hole. Similarly, the second rotating hole may be internally provided with threads, and the end of the second rod 12a may be rotatably connected to the threads in the second rotating hole by a bolt, so as to implement rotation of the end of the second rod 12a in the second rotating hole.

As an alternative embodiment, the planar shape of the first lower annulus 102 is the same as the planar shape of the first upper annulus 101, and the projection of the first upper annulus 101 on the first lower annulus 102 is completely coincident with the first lower annulus 102, then the projection of the first ball node 11c on the first upper annulus 101 on the first lower annulus 102 is coincident with the first ball node 11c on the first lower annulus 102, and the projection of each second ball node 12c on the first upper annulus 101 on the first lower annulus 102 is coincident with the corresponding second ball node 12c on the first lower annulus 102. That is, when the projection of the first upper ring surface 101 on the first lower ring surface 102 is completely overlapped with the first lower ring surface 102, the first steel column unit and the second steel column unit are simply spliced together, and at this time, the first plane structure and the second plane structure are right triangle structures.

As another alternative embodiment, the planar shape of the first lower annulus 102 is the same as the planar shape of the first upper annulus 101, and the projection of the first upper annulus 101 on the first lower annulus 102 partially coincides with the first lower annulus 102, which is mainly described below.

Specifically, along the height direction of the steel column structure 1, any one of the second rod pieces 12a of each second steel column assembly 12 of the first steel column unit 10a is sequentially connected to form the first lower annulus 102, any one of the first rod pieces 11a of the first steel column unit 10a is sequentially connected to any one of the second rod pieces 12a of each second steel column assembly 10b to form the first upper annulus 101, at this time, the second ball nodes 12c connecting two adjacent second rod pieces 12a form the vertices of the first lower annulus 102 respectively, and the first ball nodes 11c connecting two adjacent first rod pieces 11c and the second ball nodes 12c connecting two adjacent second rod pieces 12c form the vertices of the first upper annulus 101 respectively (as shown in fig. 1).

Further, in the height direction of the steel column structure 1, any one of the first ball nodes 11c of the second steel column unit 10b shares the same ball node with the first ball node 11c of the first steel column unit 10a adjacent thereto, and all the second ball nodes 12c of the second steel column unit share the same ball node with all the second ball nodes 12c of the first steel column unit 10a adjacent thereto, respectively. That is, in the actual construction installation, after the first steel column unit 10a positioned at the lowermost position is installed, the first steel column unit 10a may be used as a basis, and the first ball node 11c and the second ball node 12c of the first steel column unit 10a may be rotated by an angle, respectively, when the second steel column unit positioned thereon is installed, so that the first rod piece 11a and the second rod piece 12a of the second steel column unit may share one ball node with the first rod piece 11a and the second rod piece 12a of the first steel column unit 10a, respectively. Specifically, when the second steel column unit 10b located on the first steel column unit 10a is installed, the angles at which the first ball joint 11c and the second ball joint 12c of the first steel column unit 10a are respectively rotated may be determined according to the inner ring shape of the steel column structure 1.

Further, the projection of the first ball node 11c located on the first upper ring surface 101 on the first lower ring surface 102 is located at the center of one of the second rods 12a forming the first lower ring surface 102, the projection of each of the second ball nodes 12c located on the first upper ring surface 101 on the first lower ring surface 102 is located at the center of the other second rod 12a forming the first lower ring surface 102 corresponding thereto, and at this time, the first plane structure and the second plane structure are both regular triangles, and the plane shapes of the first upper ring surface 101 and the first lower ring surface 102 are both regular triangles.

Further, for the same first steel column unit 10a, each projection of the other rods forming the first upper ring surface 101 and the first lower ring surface 102 on the first lower ring surface 102 is eradicated to form an outer ring structure 105, the outer ring structure 105 is a polygonal structure, the number of sides of the outer ring structure 105 is n ₁, and the number of sides of the polygonal planes of the first upper ring surface 101 and the first lower ring surface 102 is n ₂, where n ₁＝2n₂. For example, when the first upper annulus 101 and the first lower annulus 102 are triangular planar, the outer ring structure 105 is a hexagonal structure (as shown in fig. 3); when the first upper annulus 101 and the first lower annulus 102 are quadrilateral planes, the outer ring structure 105 is an octagonal structure (as shown in fig. 6); when the first upper torus 101 and the first lower torus 102 are pentagonal planes, the outer ring structure 105 is a decagonal structure (as shown in fig. 9); when the first upper annulus 101 and the first lower annulus 102 are hexagonal planes, the outer ring structure 105 is a dodecagonal structure (as shown in fig. 12).

In this embodiment, as shown in fig. 13, as an alternative embodiment, the steel column structure 1 further includes a column top assembly extending upward from the steel column unit 10 located at the topmost layer and converging at the same point. Specifically, since the steel column unit 10 includes the first steel column assembly 11 and the second steel column assembly 12, the column top assembly is connected to the first steel column assembly 11 and the second steel column assembly 12, and the column top assembly extends upward from the first steel column assembly 11 and the second steel column assembly 12 and converges at the same point, thereby realizing connection of the steel column body and the net frame located on the upper portion thereof.

Further, the column top assembly comprises a first connection node 22 and a plurality of first connection rod pieces 21, wherein one end of each first connection rod piece 21 is connected to the first steel column assembly 11 and the second steel column assembly 12, and the other end of the first connection rod piece 21 is connected to the first connection node 22 in a converging manner. Specifically, as shown in fig. 4, one end of a part of the first connecting rod 21 is connected to the first ball node 11c, one end of the other part of the first connecting rod 21 is connected to the second ball node 12c, and the other end of each first connecting rod 21 is connected to the first connecting node 22 in a converging manner. That is, through the connection between the plurality of first connecting rods 21 and the first ball nodes 11c and the second ball nodes 12c, the first rods 11a and the second rods 12a can be assembled together through the first connecting rods 21, and then assembled on the first connecting nodes 22, and finally fixed on the upper net rack through the first connecting nodes 22, so that the connection between the steel column body and the upper net rack is realized.

It should be appreciated that the other end of each first connecting rod 21 should be fixedly connected to the first connecting node 22 (e.g. by welding or by screwing, etc.), so as to ensure that the connection position between the first connecting rod 21 and the first connecting node 22 is not changed.

As shown in fig. 14, as another alternative embodiment, the column top assembly includes a first extension structure extending upward from the topmost steel column unit 10 and a second extension structure extending outward from the edge of the topmost steel column unit 10. Specifically, since the steel column unit 10 includes the first steel column assembly 11 and the second steel column assembly 12, the first extension structure is connected to a portion of the first ball node 11c of the first steel column assembly 11 and to a portion of the second ball node 12c of the second steel column assembly 12, and extends upward from the first steel column assembly 11 and the second steel column assembly 12, the second extension structure is connected to another portion of the first ball node 11c of the first steel column assembly 11 and to another portion of the second ball node 12c of the second steel column assembly 12, and extends outward from the edges of the first steel column assembly 11 and the second steel column assembly 12. The first extending structure extends upwards, and the second extending structure extends outwards, so that the connection area of the steel column body and the net rack positioned on the upper portion of the steel column body can be increased, and the connection reliability of the steel column body and the net rack is further ensured.

Specifically, the first extension structure includes a plurality of second connection rods 23 and a plurality of second connection nodes 24, and the second extension structure includes a plurality of third connection rods 25 and a plurality of third connection nodes 26. One end of each second connecting rod piece 23 is connected to the steel column unit 10 positioned at the topmost layer, and the other ends of two adjacent second connecting rod pieces 23 are connected to the same second connecting node 24 in a converging manner; one end of each third connecting rod 25 is connected to the edge of the steel column unit 10 located at the topmost layer, the other end of each third connecting rod 25 extends outwards from the edge of the steel column unit 10, and each third connecting node 26 is arranged on the end of the other end of each third connecting rod 25. One end of any two second connecting rods 23 is connected to two adjacent first ball nodes 11c respectively, and the first rods 11a connecting the two adjacent first ball nodes 11c and the any two second connecting rods 23 form a first triangle structure 27; the other ends of any two second connecting rods 23 are connected together to the same second connecting node 24. One end of each of the other two second connecting rods 23 is connected to two adjacent first ball nodes 11c and second ball nodes 12c, the other two second connecting rods 23 and the second rod 12a connecting the adjacent first ball nodes 11c and second ball nodes 12c form a second triangle structure 28, and the other ends of the other two second connecting rods 23 are connected to the same second connecting node 24; one end of the other second connecting rod 23 is connected to two adjacent second ball nodes 12c, and the other second connecting rod 23 and the second rod 12a connected to two adjacent second ball nodes 12c form a third triangle structure (not shown), and the other ends of the other second connecting rods 23 are converged and connected to the same second connecting node 24. Wherein the first triangle structure 27, the second triangle structure 28 and the third triangle structures enclose an inner ring communicating with the hollow portion of the steel column unit 10. In this way, the second connecting rod 23 can be connected with the first rod 11a and the second rod 12a, so as to realize upward extension of the first steel column assembly 11 and the second steel column assembly 12, and when the second connecting rod 23 is connected with the upper grid through the column top structure, connection of the steel column body and the grid can be realized through connection of the second connecting rod 23 with the grid.

Further, one end of one of the third connecting rods 25 is connected to one of the first ball nodes 11c connected to the second connecting rod 23, and the other end of the one of the third connecting rods 25 extends outwardly from the edge of the first ball node 11c and is connected to any one of the third connecting nodes 26; one end of the other third connecting rod 25 is connected to one of the second ball nodes 12c connected to the second connecting rod 23, and the other end of the other third connecting rod 25 is connected to one of the other third connecting nodes 26. That is, the third connecting rod 25 can be extended outwards from the edges of the first steel column assembly 11 and the second steel column assembly 12, and then fixed on the upper net frame.

Therefore, the connection between the steel column body and the upper net frame can be flexibly realized no matter the mode that the column top assembly is adopted to collect the first steel column assembly 11 and the second steel column assembly 12 at the same point or the mode that the column top assembly is adopted to extend the first steel column assembly 11 and the second steel column assembly 12 upwards and outwards from the edge of the column top assembly is adopted, so that the applicability of the steel column structure is improved.

The polygonal steel column structure 1 provided by the embodiment of the invention is formed by the steel column structure 1 by adopting the rod pieces and the ball joints, and has the advantages of light weight and convenience in transportation and assembly, so that the transportation cost and the installation cost can be greatly saved, and the construction period and the construction difficulty can be reduced.

Example two

Fig. 15 to 17 are schematic structural views of another polygonal steel column structure 2 according to a second embodiment of the present invention. As shown in fig. 15 to 17, the polygonal steel column structure 2 of the second embodiment of the present invention includes a plurality of steel column units 20, each steel column unit 20 is sequentially stacked and connected to form the steel column structure 2, each steel column unit 20 includes a plurality of first steel column assemblies 2a and a plurality of second steel column assemblies 2b, and the plurality of first steel column assemblies 2a and the plurality of second steel column assemblies 2b are circumferentially connected to form the steel column unit 20 into a ring structure.

As can be seen, the polygonal steel column structure 2 according to the second embodiment of the present invention is different from the polygonal steel column structure 1 according to the first embodiment in that: the first steel column assemblies 2a are a plurality of, two adjacent first steel column assemblies 2a are arranged at intervals, two adjacent second steel column assemblies 2b are arranged at intervals, and one second steel column assembly 2b is connected between the two adjacent first steel column assemblies 2 a.

In this embodiment, the plurality of steel column units 20 include a portion of first steel column units 20a and another portion of second steel column units 20b, each second steel column unit 20b is respectively stacked between two first steel column units 20a disposed at intervals, each first steel column unit 20a and each second steel column unit 20b are hollow ring structures, each first steel column unit 20a includes a first upper ring surface 201 and a first lower ring surface 202 along the height direction of the steel column structure 2, each second steel column unit 20b includes a second upper ring surface 203 and a second lower ring surface 204, the projection of the first upper ring surface 201 on the first lower ring surface 202 partially coincides with the first lower ring surface 202, the second lower ring surface 204 shares the same surface with the first upper ring surface 201, and the second upper ring surface 203 shares the same surface with the other first lower ring surface 202 disposed at the upper portion thereof. That is, in the installation of the steel column structure 2, the second steel column unit 20b and the other first steel column units 20a may be sequentially stacked by installing the first steel column unit 20a located at the bottom layer and then using the first steel column unit 20a as a base.

Further, the first upper ring surface 201, the first lower ring surface 202, the second upper ring surface 203 and the second lower ring surface 204 are polygonal planes, and the planar shape of the first lower ring surface 202 is different from that of the first upper ring surface 201, the planar shape of the second lower ring surface 204 is identical to that of the first upper ring surface 201, and the planar shape of the second upper ring surface 203 is identical to that of the first lower ring surface 202. The first upper ring surface 201, the first lower ring surface 202, the second upper ring surface 203, and the second lower ring surface 204 may be triangular planes, quadrilateral planes, pentagonal planes, hexagonal planes, or octagonal planes.

Further, the first steel column unit 20a and the second steel column unit 20b each include the plurality of first steel column assemblies 2a and the plurality of second steel column assemblies 2b, and for the first steel column unit 20a and the second steel column unit 20b, any two first steel column assemblies 2a located in the same first steel column unit 20a or the same second steel column unit 20b are disposed at intervals, and each second steel column assembly 2b is connected between two first steel column assemblies 2a disposed at intervals. Wherein, the first second steel column assembly 2b is connected to one side of the first steel column assembly 2a, and the last second steel column assembly 2b is connected to the other side of the first steel column assembly 2a, so that the steel column unit 20 forms a hollow ring structure. Specifically, the first steel column component 2a is a first planar structure, the second steel column component 2b is a second planar structure, the first planar structure and the second planar structure are both polygonal structures, and it should be noted that the second planar structure is a structure different from the first planar structure. For example, when the first planar structure is a triangular structure, the second planar structure may be a quadrangular structure, a pentagonal structure, a hexagonal structure, or the like.

Preferably, in order to improve the overall stability of the polygonal steel column structure 22, the first planar structure may be a triangular structure and the second planar structure may be a quadrangular structure.

Further, the first steel column assembly 2a includes a plurality of first rods 211 sequentially connected end to form the first planar structure, and the second steel column assemblies 2b each include a plurality of second rods 221, where each second steel column assembly 2b shares at least one first rod 211 with two first steel column assemblies connected thereto. Specifically, taking the first planar structure as a triangle, the second planar structure as a quadrangle as an example, the second steel column assemblies 2b located between two first steel column assemblies 2a arranged at intervals respectively share the same first rod piece 211 with the two first steel column assemblies 2a, and two connected second rod pieces 221 of the second steel column assemblies 2b are connected with the same first rod piece 211 shared by one of the first steel column assemblies 2a and connected with the same first rod piece 211 shared by the other first steel column assembly 2a, so as to form the second planar structure. That is, the two second bars 221 of the first and second steel column assemblies 2b are connected to any one of the first bars 211 of the first and second steel column assemblies 2a to form the second planar structure. The two connected first bars 211 of the other first steel column assembly 2a are respectively connected with any one of the two second bars 221 of the adjacent second steel column assembly 2b to form the first plane structure; the two second bars 221 of the last second steel column assembly 2b are connected with any one of the other two first bars 211 of the first steel column assembly 2a and with any one of the first bars 211 of the other first steel column assembly 2a adjacent thereto to form the second planar structure.

Specifically, as shown in fig. 15, a first steel column assembly 2a is denoted by a, a first second steel column assembly 2b is denoted by b, and another first steel column assembly 2a connected to the second steel column assembly 2b is denoted by c. The first steel column assembly 2a includes three first rods 211, and the three first rods 211 are sequentially connected end to form a triangle structure. The first and second steel column assemblies 2b include two second rod members 221, two second rod members 221 of which are respectively two in parallel arrangement, the other first steel column assembly 2a connected with the second steel column assembly 2b includes three first rod members 211, the three first rod members 211 are sequentially connected end to form a triangle structure, and the two second rod members 221 of the first and second steel column assemblies 2b are respectively connected with one first rod member 211 in the first and second steel column assemblies 2a, and connected with one first rod member 211 in the other first steel column assembly 2a to form a quadrilateral structure. That is, the second steel column assembly 2b shares the same first rod piece 211 with the first steel column assembly 2a, and shares the same first rod piece 211 with the other first steel column assembly 2a adjacent thereto.

By adopting the mode, when the steel column is assembled, the installation tightness of the adjacent first steel column component 2a and second steel column component 2b can be effectively ensured, and meanwhile, the whole rod piece consumption of the steel column structure 2 can be effectively reduced, so that the material cost is reduced.

Further, in order to realize connection between the first rods 211, between the second rods 221 and between the first rods 211 and the second rods 221, the first steel column assembly 2a further includes a plurality of first ball nodes 212, two connected first rods of the same first steel column assembly 2a are hinged to the same first ball node 212, the second steel column assembly 2b and the first steel column assembly 2a adjacent to the second steel column assembly 2b respectively share at least two first ball nodes 212, and at least two second rods 221 of the second steel column assembly 2b are respectively hinged to the shared at least two first ball nodes 212. Specifically, as shown in fig. 15, the two second rods 221 of the second steel column assembly 2b are disposed in parallel, and the same ends of the two second rods 221 of the second steel column assembly 2b are respectively hinged to two first ball nodes 212 of the first steel column assembly 2a located at one side of the second steel column assembly 2b, and the other ends of the two second rods 221 of the second steel column assembly 2b are respectively hinged to two first ball nodes 212 of the first steel column assembly 2a located at the other side of the second steel column assembly 2 b.

The mode that adopts member and ball node articulated can be through in time adjusting member and ball node's angle of connection, makes up and obtains various different spatial structure body types to make this steel column structure 2 can be applicable to the rack of different grade type, the structure is more nimble, and application scope is wider.

In this embodiment, in order to ensure the overall structural stability and structural reliability of the steel column structure 2, the projection of the first upper ring surface 201 on the first lower ring surface 202 is located inside the first lower ring surface 202, and the projection of each first ball node 212 located on the first upper ring surface 201 on the first lower ring surface 202 is located at the center of the first rod 211 corresponding to the first ball node 212 forming the first lower ring surface 202. Specifically, as shown in fig. 17, the first upper ring surface 201 may be a triangular plane, the first lower ring surface 202 may be a hexagonal plane, and each first ball node 212 of the first upper ring surface 201 may be a vertex of the first upper ring surface 201, where each vertex of the first upper ring surface 201 is located at the center of each first rod 211 forming the first lower ring surface 202. That is, the first upper annulus 201 is located in the middle of the first lower annulus 202.

Further, for the same first steel column unit 20a, each projection of the other rods forming the first upper ring surface 201 and the first lower ring surface 202 on the first lower ring surface 202 is connected to form an outer ring structure 205, the outer ring structure 205 is a polygonal structure, the number of sides of the outer ring structure 205 is equal to the number of planar sides of the first lower ring surface 202, and the number of sides of the outer ring structure 205 is twice the number of planar sides of the first upper ring surface 201. For example, when the first upper torus 201 is a triangular plane and the first lower torus 202 is a hexagonal plane, the outer ring structure 205 may be a hexagonal structure; when the first upper torus 201 is a quadrilateral plane and the first lower torus 202 is an octagonal plane, the outer ring structure 205 can be an octagonal structure, and so on.

In this embodiment, the structure of the column top component of the steel column structure is identical to that of the column top component in the first embodiment of the present invention, and for the structure of the column top component, please refer to the description in the first embodiment, and the description is omitted here.

The polygonal steel column structure 2 provided by the second embodiment of the invention is formed by sequentially stacking a plurality of steel column units 20, and the formed steel column structure 2 not only has good stability, but also has the advantages of light weight and convenience in transportation and assembly due to the fact that the steel column structure is composed of the rod pieces and the ball joints, and is beneficial to saving transportation and installation cost.

Example III

The invention discloses a net rack, which comprises a net rack main body (not shown) and a plurality of polygonal steel column structures 1 according to the first embodiment, wherein the polygonal steel column structures 1 are used for supporting and fixing the net rack main body. Specifically, the bottom end of the polygonal steel column structure 1 is used for being connected to the ground or a bearing platform, and the top end of the polygonal steel column structure is used for supporting and fixing the grid main body, so that the grid main body is supported above the ground or the bearing platform.

Example IV

The invention also discloses a net rack, which comprises a net rack main body (not shown) and a plurality of polygonal steel column structures 2 in the second embodiment, wherein the polygonal steel column structures 2 are used for supporting and fixing the net rack main body. Specifically, the bottom end of the polygonal steel column structure 2 is used for being connected to the ground or a bearing platform, and the top end of the polygonal steel column structure 2 is used for supporting and fixing the grid main body, so that the grid main body is supported above the ground or the bearing platform.

The polygonal steel column structure and the net frame are formed by sequentially stacking and connecting a plurality of hollow steel column units, and the steel column units are limited to be annular structures formed by sequentially connecting a first steel column assembly and a plurality of second steel column assemblies. By adopting the mode, the whole structure of the steel column structure is simple, the first steel column component and the second steel column component can be transported to the site respectively during actual construction, then a plurality of steel column units are assembled, and then a plurality of steel column units are assembled to form the steel column structure.

The above describes a polygonal steel column structure and a net rack disclosed in the embodiments of the present invention in detail, and specific examples are applied to illustrate the principles and embodiments of the present invention, and the above description of the embodiments is only for helping to understand the method and core ideas of the present invention; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present invention, the present description should not be construed as limiting the present invention in view of the above.

Claims (17)

1. The polygonal steel column structure is characterized by comprising a plurality of steel column units, wherein each steel column unit is sequentially overlapped and connected to form a steel column structure, each steel column unit comprises at least one first steel column component and a plurality of second steel column components which are sequentially connected in a surrounding manner, wherein the first second steel column component is connected to one side of the first steel column component, and the last second steel column component is connected to the other side of the first steel column component, so that the steel column units form an annular structure;

The first steel column assembly comprises three first rod pieces which are connected end to form a first planar structure, the second steel column assembly comprises at least two second rod pieces, each second rod piece in the second steel column assembly is connected end to end with one first rod piece in the first steel column assembly connected with the second rod piece to form a second planar structure, each second rod piece in the second steel column assembly is also connected end to end with one second rod piece in the second steel column assembly connected with the second rod piece to form a second planar structure, each second planar structure and each first planar structure are not in the same plane, and each second planar structure is the same structure as the first planar structure and is in a triangular structure.

2. The polygonal steel column structure according to claim 1, wherein two adjacent stacked steel column units share the same plane in a height direction of the steel column structure.

3. The polygonal steel column structure according to claim 2, wherein the plurality of steel column units comprise a part of first steel column units and another part of second steel column units, each of the second steel column units is respectively overlapped between two first steel column units arranged at intervals, and each of the first steel column units and the second steel column units is of a hollow annular structure; along the direction of height of steel column structure, each first steel column unit all includes first anchor ring and first anchor ring down, each second steel column unit all includes second anchor ring and second anchor ring down, the projection of first anchor ring on first anchor ring down with first anchor ring partial or complete coincidence, second anchor ring down with first anchor ring sharing the same face, second anchor ring and another first anchor ring that is located its upper portion share the same face.

4. The polygonal steel column structure according to claim 3, wherein the first upper ring surface, the first lower ring surface, the second upper ring surface and the second lower ring surface are polygonal planes, and the planar shape of the first lower ring surface is the same as or different from the first upper ring surface, the planar shape of the second lower ring surface is the same as the first upper ring surface, and the planar shape of the second upper ring surface is the same as the first lower ring surface.

5. The polygonal steel column structure according to claim 3 or 4, wherein the first steel column assembly is one, and each second steel column assembly is sequentially connected in a surrounding manner.

6. The polygonal steel column structure according to claim 3 or 4, wherein the number of the first steel column assemblies is several, two adjacent first steel column assemblies are arranged at intervals, two adjacent second steel column assemblies are arranged at intervals, and the second steel column assemblies are connected between the two adjacent first steel column assemblies.

7. The polygonal steel column structure according to claim 5, wherein the first steel column unit and the second steel column unit each comprise the first steel column assembly and the second steel column assembly.

8. The polygonal steel column structure according to claim 3 or 4, wherein the first steel column assembly further comprises a plurality of first ball nodes, the second steel column assembly further comprises a plurality of second ball nodes, any two first rods of the same first steel column assembly are hinged through the first ball nodes, at least one second rod of the second steel column assembly and at least one first rod of the first steel column assembly connected with the second rod of the second steel column assembly share the same first ball node, and two second steel column assemblies connected with each other share at least one second ball node.

9. The polygonal steel column structure according to claim 8, wherein the planar shape of the first lower annulus is the same as the first upper annulus, and the projection of the first upper annulus on the first lower annulus is completely coincident with the first lower annulus, the projection of the first ball node located on the first upper annulus on the first lower annulus is coincident with the first ball node located on the first lower annulus, and the projection of each second ball node located on the first upper annulus on the first lower annulus is coincident with the corresponding second ball node located on the first lower annulus.

10. The polygonal steel column structure according to claim 9, wherein any one of the second bars of each of the second steel column assemblies of the first steel column unit is sequentially connected to form the first lower annulus, and any one of the first bars of the first steel column unit is sequentially connected to any one of the second bars of each of the second steel column assemblies to form the first upper annulus, in a height direction of the steel column structure.

11. The polygonal steel column structure according to claim 10, wherein any one of the first ball nodes of the second steel column unit shares the same ball node with the first ball node of the first steel column unit adjacent thereto in the height direction of the steel column structure, and all of the second ball nodes of the second steel column unit shares the same ball node with all of the second ball nodes of the first steel column unit adjacent thereto, respectively.

12. The polygonal steel column structure according to claim 8, wherein a planar shape of the first lower annulus is the same as the first upper annulus, and a projection of the first upper annulus on the first lower annulus partially coincides with the first lower annulus, a projection of the first ball node located on the first upper annulus on the first lower annulus is located at a center of one of the second bars forming the first lower annulus, and a projection of each of the second ball nodes located on the first upper annulus on the first lower annulus is located at a center of the other second bar corresponding thereto forming the first lower annulus.

13. The polygonal steel column structure according to claim 1, further comprising a column top assembly extending upward from and converging at the same point from the first and second steel column assemblies of the topmost steel column unit.

14. The polygonal steel column structure according to claim 13, wherein the column top assembly comprises a first connection node and a plurality of first connection rods, one end of each first connection rod is connected to the steel column unit located at the topmost layer, and the other end of each first connection rod is connected to the first connection node in a converging manner.

15. The polygonal steel column structure of claim 1, further comprising a column top assembly comprising a first extension structure extending upwardly from the topmost steel column unit and a second extension structure extending outwardly from an edge of the topmost steel column unit.

16. The polygonal steel column structure according to claim 15, wherein the first extension structure comprises a plurality of second connection bars and a plurality of second connection nodes, and the second extension structure comprises a plurality of third connection bars and a plurality of third connection nodes;

One end of each second connecting rod piece is connected to the steel column unit positioned at the topmost layer, and the other ends of two adjacent second connecting rod pieces are converged and connected to the same second connecting node;

One end of each third connecting rod piece is connected to the edge of the steel column unit located at the topmost layer, the other end of each third connecting rod piece extends outwards from the edge of the steel column unit, and each third connecting node is arranged on the end of the other end of each third connecting rod piece.

17. A grid comprising a grid body and a plurality of polygonal steel column structures according to any one of claims 1 to 16 for supporting and fixing the grid body.