Stand column assembly and steel structure

Abstract

The invention provides a stand column assembly and a steel structure. The stand column assembly comprises a stand column extending in the vertical direction, the stand column is provided with a first penetrating hole and a second penetrating hole, the first penetrating hole transversely penetrates through the stand column in the first direction, and the second penetrating hole transversely penetrates through the stand column in the second direction; the bracket comprises a first connecting piece and a second connecting piece which are fixed in a crossed manner; the first connecting piece penetrates through the first penetrating hole in the first direction. The second connecting piece penetrates through the second penetrating hole in the second direction. The bracket is fixedly connected with the stand column.

Description

Technical Field

[0001] The invention relates to a column assembly and a steel structure. Background Art

[0002] At present, steel structures need to connect multiple beams through multiple columns. The various components of existing steel structures are directly welded together.

[0003] During the welding process, the components of the steel structure are easily displaced, resulting in unstable steel structure, unreliable connection, low strength, inconvenient assembly and low production efficiency.

[0004] Therefore need to propose a kind of novel column assembly and steel structure. Summary of the invention

[0005] One of the purposes of the present invention is to overcome at least one deficiency in the prior art and to provide a column assembly and a steel structure.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] According to a first aspect of the present invention, a column assembly is provided. The column assembly comprises:

[0008] A vertically extending column, wherein the column is provided with a first through-hole and a second through-hole, wherein the first through-hole transversely penetrates the column along a first direction, and the second through-hole transversely penetrates the column along a second direction; and

[0009] A corbel, the corbel comprising a first connecting member and a second connecting member that are cross-fixed;

[0010] The first connecting member is arranged to penetrate the first through hole along a first direction;

[0011] The second connecting member is arranged to penetrate the second through hole along a second direction;

[0012] The corbel is fixedly connected to the column.

[0013] Optionally, the first connecting member is provided with a first groove and a first limiting wall located at the bottom of the first groove;

[0014] The second connecting member is provided with a second groove and a second limiting wall located at the bottom of the second groove;

[0015] The first limiting wall is located in the second groove, and the second limiting wall is located in the first groove;

[0016] The first connecting member and the second connecting member are fixed by welding.

[0017] Optionally, the first connecting member and the second connecting member are cross-shaped.

[0018] Optionally, the column is a rectangular tube;

[0019] The upright column comprises a pair of U-shaped members extending vertically;

[0020] The U-shaped member includes a middle wall and a pair of side walls respectively located on both sides of the bottom;

[0021] The middle wall is provided with a first through hole;

[0022] The end of the side wall facing away from the middle wall is provided with a U-shaped groove;

[0023] The side walls of a pair of U-shaped members are butt-jointed and welded to fix, the first through holes on a pair of U-shaped members are aligned to form the first through hole, and the U-shaped grooves on the side walls of a pair of U-shaped members are jointly enclosed to form the second through hole.

[0024] Optionally, both the first connecting member and the second connecting member are rectangular connecting tubes;

[0025] The ends of the rectangular connecting pipes are each provided with a first bushing;

[0026] The first bushing portion is fixedly connected to the inner wall of the rectangular connecting tube, and a portion protrudes out of the rectangular connecting tube for supporting the crossbeam.

[0027] Optionally, the end surface of the rectangular connecting tube is set as a first inclined surface;

[0028] The vertical upper end of the first inclined surface is closer to the column than the vertical lower end;

[0029] The first bushing portion protrudes to one lateral side of an upper end of the first inclined surface.

[0030] Optionally, the first bushing is U-shaped; or,

[0031] The first bushing is a closed rectangular structure.

[0032] Optionally, the first connecting member and the second connecting member have the same structure;

[0033] The first groove and the first limiting wall are arranged to have the same vertical length.

[0034] According to a second aspect of the present invention, a steel structure is provided. The steel structure comprises:

[0035] a plurality of the above-mentioned column assemblies; and

[0036] A crossbeam extending in the transverse direction, one end of the crossbeam is fixedly connected to the bracket of one of the column assemblies, and the other end is fixedly connected to the bracket of another column assembly.

[0037] Optionally, the first connecting member and the second connecting member are both rectangular connecting tubes, and the ends of the rectangular connecting tubes are both provided with first bushings; the first bushing is partially fixedly connected to the inner wall of the rectangular connecting tube, and partially protrudes to the outside of the rectangular connecting tube;

[0038] The end surface of the rectangular connecting tube is set as a first inclined surface, the vertical upper end of the first inclined surface is closer to the column than the vertical lower end, and the first bushing part protrudes to one lateral side of the upper end of the first inclined surface;

[0039] The crossbeam is a rectangular tube, the end face of the crossbeam is set as a second inclined surface, the inner wall of the upper end of the crossbeam overlaps with the first bushing, and the second inclined surface is connected to the first inclined surface and is welded and fixed.

[0040] Optionally, a second bushing is provided at the end of the crossbeam;

[0041] The second bushing portion is fixedly connected to the inner wall of the beam and partially protrudes to a lateral side of the lower end of the beam;

[0042] The second bushing overlaps the inner wall of the lower end of the rectangular connecting tube.

[0043] Different from the prior art, in the column assembly and steel structure provided by the present invention, the first connecting member and the second connecting member of the corbel are cross-fixed, and respectively penetrate the first through-hole and the second through-hole of the column and are fixedly connected to the column. The column structure of the one-piece can be fixedly connected to the crossbeam to form a steel structure with stable and accurate structure, reliable connection and high strength. The steel structure is easy to assemble and has high assembly efficiency. The parts of the steel structure are small and prefabricated, which is easy to transport.

[0044] The first connecting piece and the second connecting piece of the corbel can be pre-positioned by a snap-fit ​​structure, which is convenient for welding and fixing between the first connecting piece and the second connecting piece. The structure is stable, the connection is reliable, the strength is high, the assembly is convenient, and the assembly efficiency is high.

[0045] The structures and sizes of the first connecting member and the second connecting member can be identical, which facilitates manufacturing.

[0046] The end faces of the first connecting member and the second connecting member can be set as a first inclined surface, which is convenient for lifting the crossbeam so that the second inclined surface of the crossbeam is connected with the first inclined surface of the first connecting member and the second connecting member, so that the corbel can reliably and stably support the crossbeam.

[0047] Bushings may be provided at the ends of the first connecting member, the second connecting member and the crossbeam; the inner wall of the upper end of the crossbeam may overlap with the bushings on the first connecting member and the second connecting member; the bushing of the crossbeam may overlap with the inner wall of the lower ends of the first connecting member and the second connecting member, thereby achieving pre-positioning between the crossbeam and the first connecting member and the second connecting member, facilitating welding and fixing between the second inclined surface of the crossbeam and the first inclined surface of the rectangular connecting tube; the steel structure has a stable structure, reliable connection, high strength, easy assembly and high efficiency.

[0048] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Figure 1 A schematic structural diagram of a steel structure provided in one embodiment of the present invention.

[0050] Figure 2 for Figure 1 Schematic diagram of the structure of the column assembly.

[0051] Figure 3 for Figure 2 Schematic diagram of the structure of the corbel.

[0052] Figure 4 for Figure 3 Schematic diagram of the decomposition.

[0053] Figure 5 for Figure 2 Schematic diagram of the structure of the column.

[0054] Figure 6 for Figure 5 Schematic diagram of the decomposition.

[0055] Figure 7 A schematic structural diagram of a bushing provided in one embodiment of the present invention.

[0056] Figure 8 A schematic structural diagram of a first bushing provided in another embodiment of the present invention.

[0057] Fig. 9 for Figure 1 Schematic diagram of the structure of the beam.

[0058] in:

[0059] 1- Column assembly;

[0060] 10- pillar;

[0061] 12-U-shaped piece;

[0062] 121 - middle wall;

[0063] 122 - first perforation;

[0064] 123-first through hole;

[0065] 125-side wall;

[0066] 126-U-shaped slot;

[0067] 128 - second perforation;

[0068] 20-ox leg;

[0069] 22- first connecting member;

[0070] 222-first groove;

[0071] 224-first limiting wall;

[0072] 24- second connecting member;

[0073] 242-second groove;

[0074] 244-second limiting wall;

[0075] 26- first inclined surface;

[0076] 28-first bushing;

[0077] 5- beam;

[0078] 52-Second slope;

[0079] 54 - second bushing;

[0080] Z-vertical;

[0081] X-first direction;

[0082] Y - Second direction. DETAILED DESCRIPTION

[0083] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0084] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0085] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0086] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present invention are described at the angles shown in the drawings and should not be understood as limiting the embodiments of the present invention. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0087] According to an embodiment of the present invention, a steel structure is provided. Figures 1 to 3 The steel structure includes a column assembly 1 and a crossbeam 5. The column assembly 1 includes a column 10 and a corbel 20. The steel structure has a vertical direction Z and a transverse direction, and the transverse direction can be any direction perpendicular to the vertical direction Z. The column 10 is extended vertically and has a certain height, and can be installed on the ground, underground or on a bearing. The corbel 20 is fixedly installed on the column 10 and is used to connect the crossbeam 5.

[0088] The column 10 is provided with a first through hole 122 and a second through hole 128. The first through hole 122 is provided to transversely penetrate the column 10 along a first direction X. The second through hole 128 is provided to transversely penetrate the column 10 along a second direction Y. The first direction and the second direction are provided differently.

[0089] The corbel 20 includes a first connecting member 22 and a second connecting member 24. The first connecting member 22 is disposed through the first through hole 122 along a first direction. The second connecting member 24 is disposed through the second through hole 128 along a second direction.

[0090] The first connecting member 22 and the second connecting member 24 are cross-fixed. The corbel 20 is fixedly connected to the column 10. More preferably, the first connecting member 22 and the second connecting member 24 can be cross-arranged to meet the layout requirements of the steel structure. It can be understood that by arranging the first direction and the second direction perpendicular to each other, the first connecting member 22 and the second connecting member 24 can be cross-arranged.

[0091] The cross beam 5 is a rectangular tube extending in the transverse direction. One end of the cross beam 5 is fixedly connected to the bracket 20 of one column assembly 1, and the other end is fixedly connected to the bracket 20 of another column assembly 1. The cross beam 5 can be transversely connected to the first connecting member 22 or the second connecting member 24 and fixed by welding.

[0092] In this way, the first connecting member 22 and the second connecting member 24 of the corbel 20 are cross-fixed, and respectively penetrate the first through hole 122 and the second through hole 128 of the column 10 and are fixedly connected to the column 10. The column 10 structure of the one-piece can be fixedly connected to the crossbeam 5 to form a steel structure with a stable structure and reliable connection. The steel structure is easy to assemble and has high assembly efficiency. The parts of the steel structure are small and prefabricated, which is easy to transport.

[0093] In this embodiment, please refer to Figure 3 and Figure 4 The first connecting member 22 may be provided with a first groove 222 and a first limiting wall 224 located at the bottom of the first groove 222 .

[0094] The second connecting member 24 may be provided with a second groove 242 and a second limiting wall 244 located at the bottom of the second groove 242 .

[0095] The first limiting wall 224 and the second groove 242 can be arranged in a complementary manner. The first limiting wall 224 is limited in the second groove 242 .

[0096] The second limiting wall 244 and the first groove 222 can be complementary in structure, and the second limiting wall 244 is limited in the first groove 222. The first connecting member 22 and the second connecting member 24 are fixed by welding.

[0097] With such arrangement, the first connecting member 22 and the second connecting member 24 of the corbel 20 can be pre-positioned by the snap-fit ​​structure, which facilitates welding and fixing between the first connecting member 22 and the second connecting member 24 , and has a stable structure, reliable connection, convenient assembly and high assembly efficiency.

[0098] It is understandable that, for the convenience of production and assembly, the first connecting member 22 and the second connecting member 24 can be configured in the same structure. The first groove 222 of the first connecting member 22 and the first limiting wall 224 can be configured in the same vertical length. Correspondingly, considering that the first connecting member 22 and the second connecting member 24 have the same structure, the second groove 242 of the second connecting member 24 and the second limiting wall 244 also have the same vertical length.

[0099] In this way, the structures and dimensions of the first connecting member 22 and the second connecting member 24 can be identical, which facilitates manufacturing.

[0100] See also Figure 5 and Figure 6 In order to facilitate the assembly connection between the column 10 and the corbel 20, the column 10 can be set as a rectangular tube. The cross section of the column 10 is a ring-shaped rectangular structure.

[0101] To form a rectangular tubular column 10, the column 10 may specifically include a pair of U-shaped members 12, and the cross section of the U-shaped member 12 is U-shaped. The pair of U-shaped members 12 are both arranged to extend vertically. The U-shaped member 12 may specifically include an intermediate wall 121 and a pair of side walls 125. The pair of side walls 125 are respectively located on both sides of the bottom. The intermediate wall 121 of the U-shaped member 12 is provided with a first through hole 123. The side walls 125 of the U-shaped member 12 are provided with a U-shaped groove 126, and the U-shaped groove 126 is located at the end of the side wall 125 facing away from the intermediate wall 121.

[0102] The side walls 125 of a pair of U-shaped members 12 are butt-jointed and welded to form a rectangular tube column 10 , the first through holes 123 on a pair of U-shaped members 12 are aligned to form a first through hole 122 , and the U-shaped grooves 126 on the side walls 125 of a pair of U-shaped members 12 are jointly enclosed to form a second through hole 128 .

[0103] It is understandable that when the side walls 125 of a pair of U-shaped members 12 are butt-jointed and welded, the U-shaped grooves 126 on the side walls 125 of the pair of U-shaped members 12 will jointly enclose a pair of aligned second through holes, thereby ultimately forming a second through hole 128 .

[0104] In this embodiment, please refer to Figure 2 and Figure 3 The first connecting member 22 and the second connecting member 24 can both be configured as rectangular connecting tubes. The cross sections of the first connecting member 22 and the second connecting member 24 are both rectangular structures. The ends of the rectangular connecting tubes are both provided with first bushings 28.

[0105] The structure of the first bushing 28 can be configured to be suitable for supporting the crossbeam 5. A portion of the first bushing 28 is fixedly connected to the inner wall of the rectangular connecting tube, and a portion protrudes to the outside of the rectangular connecting tube.

[0106] The end surface of the rectangular connecting tube can be set as a first inclined surface 26. The vertical upper end of the first inclined surface 26 of the rectangular connecting tube is arranged closer to the column 10 than the vertical lower end. The first bushing 28 partially protrudes to the lateral side of the upper end of the first inclined surface 26. The first connecting member 22 is welded and fixed to the second connecting member 24. In this way, a part of the structure of the first bushing 28 is exposed to the outside of the lateral side of the rectangular connecting tube, which is suitable for supporting the crossbeam 5.

[0107] See also Fig. 9 Correspondingly, the cross beam 5 can be set as a rectangular tube. The end surface of the cross beam 5 is set as a second inclined surface 52. The inner wall of the upper end of the cross beam 5 overlaps with the first bushing 28.

[0108] The end of the cross beam 5 may be provided with a second bushing 54. Part of the second bushing 54 is fixedly connected to the inner wall of the cross beam 5, and part of it protrudes to the lateral side of the lower end of the cross beam 5. The second bushing 54 overlaps the inner wall of the lower end of the rectangular connecting tube. In this way, part of the second bushing 54 is exposed to the outside of the lateral side of the cross beam 5, and the rectangular connecting tube can support the cross beam 5 by supporting the second bushing 54.

[0109] See also Figure 1 The second inclined surface 52 of the cross beam 5 is butted against the first inclined surface 26 of the rectangular connecting tube and fixed by welding.

[0110] It can be understood that by providing a bushing on the inner wall of the rectangular connecting tube or the inner wall of the cross beam 5, impurities generated by welding can be effectively prevented from entering the interior of the steel structure.

[0111] In this arrangement, the vertical upper end of the first slope 26 of the rectangular connecting tube is arranged closer to the column 10 than the vertical lower end, which is convenient for hoisting the beam 5 from top to bottom and for connecting the second slope 52 of the beam 5 with the first slope 26 of the rectangular connecting tube, so that the corbel 20 can reliably and stably support the beam 5.

[0112] The inner wall of the upper end of the cross beam 5 overlaps with the first bushing 28 on the first connecting member 22 and the second connecting member 24, and the second bushing 54 of the cross beam 5 overlaps with the inner wall of the lower end of the first connecting member 22 and the second connecting member 24, so as to realize the pre-positioning between the cross beam 5 and the first connecting member 22 and the second connecting member 24, and facilitate the welding and fixation between the second inclined surface 52 of the cross beam 5 and the first inclined surface 26 of the rectangular connecting tube. The steel structure has a stable structure, reliable connection, convenient assembly and high assembly efficiency.

[0113] The structure of the bushing is configured to be suitable for being fixedly connected to the inner wall of the rectangular connecting tube or the inner wall of the cross beam 5 and being able to extend to the inner wall of the rectangular connecting tube or the outside of the cross beam 5 .

[0114] For an alternative example, see Figure 7 The first bushing 28 can be set to be U-shaped. The second bushing 54 can be set to be U-shaped. The first bushing 28 and the second bushing 54 can be spaced apart.

[0115] Of course, in some other embodiments, the first bushing 28 and the second bushing 54 may be butted against each other to form an annular structure.

[0116] For an alternative example, see Figure 8 The first bushing 28 can be set as a closed rectangular structure. The second bushing 54 can be set as a closed rectangular structure. The first bushing 28 and the second bushing 54 can be set at intervals.

[0117] Of course, in some other embodiments, the first bushing 28 and the second bushing 54 are butted against each other to form an integral annular structure.

[0118] In a specific implementation manner, an assembly method of a steel structure is described below by way of example.

[0119] See also Figures 1 to 9 First, the first limiting wall 224 of the first connecting member 22 is limited in the second groove 242 of the second connecting member 24, and the second limiting wall 244 of the second connecting member 24 is limited in the first groove 222 of the first connecting member 22, so that the first connecting member 22 and the second connecting member 24 of the corbel 20 are pre-positioned through the buckle structure. Then, the first connecting member 22 and the second connecting member 24 are welded and fixed.

[0120] Then, one end of the first connecting member 22 is passed through the first through hole 123 of a U-shaped member 12. Then, one U-shaped member 12 is butted against another U-shaped member 12 and welded to form a rectangular tube column 10. The first through holes 123 on a pair of U-shaped members 12 are aligned to form a first through hole 122. The U-shaped grooves 126 on the side walls 125 of a pair of U-shaped members 12 are enclosed together to form a second through hole 128. Then, the first connecting member 22 and the second connecting member 24 are welded to the column 10 to form a column assembly 1.

[0121] Then the inner wall of the upper end of the cross beam 5 is abutted against the first bushing 28, and the second bushing 54 is overlapped with the inner wall of the lower end of the rectangular connecting tube. After that, the second inclined surface 52 of the cross beam 5 is butted against the first inclined surface 26 of the rectangular connecting tube and welded to form a steel structure.

[0122] Also, see Figure 1 In this embodiment, the plurality of brackets 20 can be vertically spaced in sequence along the column 10. One end of the crossbeam 5 is fixedly connected to the first connecting member 22 or the second connecting member 24 of one column assembly 1, and the other end is fixedly connected to the first connecting member 22 or the second connecting member 24 of another column assembly 1.

[0123] Of course, in some other embodiments, at least one of the column, the first connecting member, the second connecting member, and the crossbeam may be configured as a solid steel structure or other annular structures.

[0124] In the present invention, the first connecting member and the second connecting member of the corbel are cross-fixed, and respectively penetrate the first through-hole and the second through-hole of the column and are fixedly connected to the column. The column structure of the one-piece can be fixedly connected to the crossbeam 5 to form a steel structure with a stable and accurate structure, reliable connection and high strength. The steel structure is easy to assemble and has high assembly efficiency. The parts of the steel structure are small in structure and prefabricated, which is easy to transport.

[0125] The first connecting piece and the second connecting piece of the corbel can be pre-positioned by a snap-fit ​​structure, which is convenient for welding and fixing between the first connecting piece and the second connecting piece. The structure is stable, the connection is reliable, the strength is high, the assembly is convenient, and the assembly efficiency is high.

[0126] The structures and sizes of the first connecting member and the second connecting member can be identical, which facilitates manufacturing.

[0127] The end faces of the first connecting member and the second connecting member can be set as a first inclined surface, which is convenient for lifting the crossbeam so that the second inclined surface of the crossbeam is connected with the first inclined surface of the first connecting member and the second connecting member, so that the corbel can reliably and stably support the crossbeam.

[0128] Bushings may be provided at the ends of the first connecting member, the second connecting member and the crossbeam; the inner wall of the upper end of the crossbeam may overlap with the bushings on the first connecting member and the second connecting member; the bushing of the crossbeam may overlap with the inner wall of the lower ends of the first connecting member and the second connecting member, thereby achieving pre-positioning between the crossbeam and the first connecting member and the second connecting member, facilitating welding and fixing between the second inclined surface of the crossbeam and the first inclined surface of the rectangular connecting tube; the steel structure has a stable structure, reliable connection, high strength, easy assembly and high efficiency.

[0129] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A column assembly, characterized in that: include: A vertically extending column, wherein the column is provided with a first through-hole and a second through-hole, wherein the first through-hole transversely penetrates the column along a first direction, and the second through-hole transversely penetrates the column along a second direction; and A corbel, the corbel comprising a first connecting member and a second connecting member that are cross-fixed; The first connecting member is arranged to penetrate the first through hole along a first direction; The second connecting member is arranged to penetrate the second through hole along a second direction; The corbel is fixedly connected to the column.

2. The column assembly according to claim 1, characterized in that: The first connecting member is provided with a first groove and a first limiting wall located at the bottom of the first groove; The second connecting member is provided with a second groove and a second limiting wall located at the bottom of the second groove; the first limiting wall is limited in the second groove, and the second limiting wall is limited in the first groove; The first connecting member and the second connecting member are fixed by welding.

3. The column assembly according to claim 2, characterized in that: The first connecting member and the second connecting member are cross-shaped.

4. The column assembly according to claim 2, characterized in that: The column is a rectangular tube; The upright column comprises a pair of U-shaped members extending vertically; The U-shaped member includes a middle wall and a pair of side walls respectively located on both sides of the bottom; The middle wall is provided with a first through hole; The end of the side wall facing away from the middle wall is provided with a U-shaped groove; The side walls of a pair of U-shaped members are butt-jointed and welded to fix, the first through holes on a pair of U-shaped members are aligned to form the first through hole, and the U-shaped grooves on the side walls of a pair of U-shaped members are jointly enclosed to form the second through hole.

5. The column assembly according to claim 2, characterized in that: The first connecting member and the second connecting member are both rectangular connecting tubes; The ends of the rectangular connecting pipes are each provided with a first bushing; The first bushing portion is fixedly connected to the inner wall of the rectangular connecting tube, and a portion protrudes out of the rectangular connecting tube for supporting the crossbeam.

6. The column assembly according to claim 5, characterized in that: The end surface of the rectangular connecting tube is set as a first inclined surface; The vertical upper end of the first inclined surface is closer to the column than the vertical lower end; The first bushing portion protrudes to one lateral side of an upper end of the first inclined surface.

7. The column assembly according to claim 6, characterized in that: The first bushing is U-shaped; or, The first bushing is a closed rectangular structure.

8. The column assembly according to any one of claims 2 to 7, characterized in that: The first connecting member and the second connecting member have the same structure; The first groove and the first limiting wall are arranged to have the same vertical length.

9. A steel structure, characterized in that: include: A plurality of column assemblies according to any one of claims 1 to 8; and A crossbeam extending in the transverse direction, one end of the crossbeam is fixedly connected to the bracket of one of the column assemblies, and the other end is fixedly connected to the bracket of another column assembly.

10. The steel structure according to claim 9, characterized in that: The first connecting member and the second connecting member are both rectangular connecting tubes, and the ends of the rectangular connecting tubes are both provided with first bushings; a portion of the first bushing is fixedly connected to the inner wall of the rectangular connecting tube, and a portion protrudes outside the rectangular connecting tube; The end surface of the rectangular connecting tube is set as a first inclined surface, the vertical upper end of the first inclined surface is closer to the column than the vertical lower end, and the first bushing part protrudes to one lateral side of the upper end of the first inclined surface; The crossbeam is a rectangular tube, the end face of the crossbeam is set as a second inclined surface, the inner wall of the upper end of the crossbeam overlaps with the first bushing, and the second inclined surface is connected to the first inclined surface and is welded and fixed.

11. The steel structure according to claim 10, characterized in that: A second bushing is provided at the end of the crossbeam; The second bushing portion is fixedly connected to the inner wall of the beam and partially protrudes to a lateral side of the lower end of the beam; The second bushing overlaps the inner wall of the lower end of the rectangular connecting tube.

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