Steel structure spliced column and construction method

Abstract

The present invention discloses a steel structure spliced column and a construction method, wherein the steel structure spliced column includes several groups of columns and several groups of connecting columns, wherein each two adjacent groups of the columns are connected by a group of connecting columns through socket splicing and fixed with bolts; each group of the columns includes a central column and a fixed column, wherein the fixed columns are respectively fixedly connected to the four ends of the central column, and a buffer structure is fixedly connected inside each group of the connecting columns. The present invention adopts a method of splicing and connecting several groups of columns and connecting columns, and different numbers of columns and connecting columns can be selected according to needs, thereby optimizing the compatibility problem of traditional integrated steel structure columns; and the present invention adopts a plug-in socket connection method, and the connection structure is simple and easy to operate, which effectively improves the construction efficiency; at the same time, the present invention uses bolts to fix the spliced columns at multiple points, so that the splicing structure is more stable; the present invention also provides multiple groups of buffer structures, which can reduce the vibration of the columns.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structures, and in particular to a steel structure spliced column and a construction method thereof. Background Art

[0002] With the development of science and technology and the advancement of construction technology, steel structures are used more and more widely in modern buildings. In order to use more and more steel structures in construction projects and enable steel structure buildings to achieve comprehensive development in technology, structure and other aspects, architects and engineers engaged in steel structure design need to incorporate more steel structure module element designs into modern buildings. This will not only drive the development of steel structure buildings as a whole, but also indirectly promote the development of related industries such as the metallurgical industry. Among them, for the architectural design of steel structures, architects and engineers need to continuously strengthen their ability to master the characteristics of steel structures, the coordination of their use, and the organization and cooperation. Close cooperation in many aspects such as industry-university-research cooperation for steel structure buildings is required.

[0003] Among the many steel structural modules, steel columns are a crucial component of steel buildings. Their performance and design play a vital role in the safety and stability of the entire steel structure. Steel columns offer high strength, rigidity, and stability. Compared to traditional structural columns, they can effectively withstand natural disasters such as earthquakes and typhoons, thereby improving building safety. However, beyond safety, efficiency is also a key concern during building design and construction.

[0004] Patent publication number CN114215271A discloses an improved steel structure column. The structure involved in the patented technical solution includes a column body, an inner interlayer is provided in the column body, and a core is inserted into the inner interlayer. The steel bars are staggered and inserted into the column body. The patented technology has good seismic and compressive bearing capacity. The arc shape of the inner interlayer allows it to be compressed through its arc shape when under stress, and the core is used to divide the pressure at its fragile opening. The central part is open to facilitate cement casting. However, steel structure columns have different structural requirements in different application scenarios. The steel structure columns of the patented technical solution lack compatibility and specific construction methods and steps.

[0005] The patent with authorization announcement number CN110258925A discloses an improved steel structure column. The patented technical solution includes a base, a column, a top seat and a mounting bracket. The column is installed at the upper end of the base, the top seat is installed at the upper end of the column, and the mounting bracket is installed in the middle of the column. The column is a U-shaped structure, and mounting holes are opened from the top down on both the front and back sides of the column. The mounting bracket includes a sliding block, a limit plate, a locking assembly and a mounting assembly. The locking assembly includes a vertical plate, a moving plate, a locking block, a moving spring, a shielding frame, an adjustment spring and an adjustment screw. The base includes a base plate, a fixed seat, a positioning frame and a stabilizing frame. The top seat includes a sleeve, a clamping block, a support plate and a working plate. The patented technical solution achieves the purpose of fixing the components and the column at the node by combining rigid connection with elastic connection, which can improve the seismic resistance of the connection and the number and position of the mounting brackets can be flexibly adjusted to meet different work needs. However, in this patented technical solution, the connection structure between the columns is too complicated. As the basic structure of the steel structure building, the steel structure column has an overly complicated connection structure that will bring too many instability risks, and the complex structural design will reduce the construction efficiency of the construction process.

[0006] Patent publication number CN109898666A discloses a shock-absorbing steel column. This patented technical solution effectively addresses the problem of poor shock absorption performance of existing steel columns. The patented technical solution includes a base with a mounting slot formed on the base. The column is mounted in the mounting slot via a connector. The connector is connected to the column and the base via a set of interlocking inserts at the top and bottom, respectively. The upper and lower sets of inserts are oriented perpendicularly. A first shock-absorbing plate is installed at the bottom of each insert interval, and a second shock-absorbing plate is sandwiched between each two adjacent inserts. Four vertical hydraulic chambers are arranged on the outside of the mounting slot. Each hydraulic chamber has a first channel on one side, the lower end of which communicates with the bottom of the piston chamber. The top of the piston chamber has a liquid inlet hole and a liquid return hole. The liquid inlet hole is located at the top and has a smaller diameter than the liquid return hole. The up and down movement of the plunger connects the annular groove with the liquid inlet hole or the liquid return hole. The patented technical solution can effectively buffer vibration, has a high load-bearing capacity, and can operate reliably for a long time. In this patented technical solution, the shock-absorbing structure of the steel structure column is designed on the base structure of the column. However, in actual application, the steel structure column has different structural characteristics according to different application environments. The effect of improving the vibration of the column by only using the shock-absorbing structure of the base part is very limited.

[0007] In view of this, we proposed a steel structure spliced column and construction method based on the highly stable and compatible steel structure column design and high-efficiency construction method.

[0008] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0009] In order to solve the problems involved in the above background technology, the present invention proposes a steel structure splicing column and construction method based on the highly stable and highly compatible steel structure column structure design and high-efficiency construction method;

[0010] On the one hand, the present invention adopts a method of splicing and connecting several groups of columns and connecting columns. Different numbers of columns and connecting columns can be selected according to specific applications, thereby optimizing the compatibility issues of traditional steel structure columns. On the other hand, the splicing connection method of the present invention adopts an insert-type socket connection method. The connection structure is simple and easy to operate, which effectively improves the construction efficiency of steel structure columns. At the same time, the present invention uses several groups of bolts for multi-position fixation on the basis of insert-type socket connection, making the splicing structure of the columns more stable and not easy to fall off. In addition, the present invention arranges multiple groups of buffer structures at the splicing connection of the columns, which can reduce various vibrations of the steel structure columns caused by splicing.

[0011] In order to achieve the above object, the present invention proposes the following technical solutions:

[0012] A steel structure spliced column, comprising a plurality of groups of columns and a plurality of groups of connecting columns, wherein each two adjacent groups of the columns are spliced and connected by a group of the connecting columns, and the plurality of groups of connecting columns are spliced and connected in sequence by means of plug-in sleeves;

[0013] In the technical solution of the present invention, each group of columns includes a group of central columns and four groups of fixed columns. The central column is a hollow structure. The four groups of fixed columns are fixedly connected to the four end points of the central column by welding or pre-processing. The four groups of fixed columns are fixedly connected to the four end points of the central column to increase the compressive strength of the edge points or corner points of the column, thereby effectively resisting external forces. In traditional steel structure columns, because the compressive strength of the edge points and corner points of the column is much lower than that of other positions, under the action of external forces, the edge points and corner points are prone to buckling due to stress concentration, resulting in instability of the overall structure. In the technical solution of the present invention, the four groups of fixed columns can disperse concentrated stress, prevent the column from being compressed and deformed, and avoid various adverse conditions caused by stress concentration.

[0014] Preferably, several groups of hollow rubber rings and several groups of steel bars are inserted into the interior of each group of the fixing columns. The several groups of hollow rubber rings and several groups of steel bars are used to improve the structural stability of the columns. The several groups of hollow rubber rings are made of rubber material. The rubber material has the characteristics of high resilience and high toughness, and can effectively resist deformation caused by external forces in various environments. The several groups of steel bars have the characteristics of high tensile strength and bending strength, and can effectively improve the compressive strength of the columns.

[0015] In the technical solution of the present invention, a connecting block is fixedly connected inside each group of connecting columns, and the connecting block is used for socketing and splicing the several groups of columns. When the several groups of columns are spliced and connected through the connecting columns, the central columns in the column structure are respectively socketed on the connecting blocks inside the connecting column structure.

[0016] Preferably, the center column is cross-shaped, and a plurality of groups of first threaded holes are respectively opened on the four side surfaces of the cross-shaped center column, and the plurality of groups of first threaded holes are used for bolt fixation after splicing.

[0017] In the technical solution of the present invention, the fixed column includes a fixed column outer frame, the several groups of hollow rubber rings are respectively inserted into the interior of the fixed column outer frame, and the several groups of steel bars are respectively inserted into the interior of the several groups of hollow rubber rings. The use of this structural layered design can better coordinate and give play to the advantages of different structural materials.

[0018] In the technical solution of the present invention, the connecting column includes a connecting column outer frame, and the side surfaces of the connecting column outer frame are provided with several groups of second threaded holes, the size and spacing of the several groups of second threaded holes are the same as those of the several groups of first threaded holes, and the several groups of second threaded holes are used for bolt fixation after splicing, the connecting block is cross-shaped and fixedly connected to the inner center of the connecting column outer frame, and the four sides of the cross-shaped connecting block are respectively provided with several groups of third threaded holes, the size and spacing of the several groups of third threaded holes are the same as those of the several groups of first threaded holes, and the several groups of third threaded holes are used for bolt fixation after splicing, and a limiting protrusion is also fixedly connected to the middle part of the structure of the connecting block.

[0019] In the technical solution of the present invention, limiting plates are fixedly connected to the lower sides of the four inner ends of the outer frame of the connecting column, and several groups of buffer springs are fixedly installed on the upper end surfaces of the limiting plates. Buffer plates are fixedly installed above the several groups of buffer springs. The several groups of buffer springs and the buffer plates are used to mitigate various vibrations of the columns caused by splicing and other environmental factors.

[0020] Preferably, a gap is reserved between the connecting column outer frame and the connecting block for socketing the column, the gap size is the same as the structural size of the column, the shape and size of the connecting block are the same as the shape and size of the internal cavity of the center column, the limiting protrusion fixes the connecting block and the connecting column outer frame, when the two adjacent groups of columns are spliced and connected by the connecting column, the center column is respectively socketed at both ends of the connecting block, and the center column respectively presses against the upper and lower ends of the limiting protrusion.

[0021] Preferably, the positions of the several groups of second threaded holes and the several groups of third threaded holes located in the same direction are projected overlapped in the direction of the opening, and when the connecting column and the column are spliced and connected, the several groups of second threaded holes and the several groups of third threaded holes are projected overlapped with the positions of the several groups of first threaded holes in the same direction in the direction of the opening, and when spliced, the several groups of second threaded holes, the several groups of third threaded holes and the several groups of first threaded holes are respectively connected with bolts for fixation, and the bolts pass through the second threaded holes and the third threaded holes in the same direction and are bolted and fixed to the first threaded holes.

[0022] Preferably, the size of the limiting plate and the buffer plate is the same as the column cross-sectional size of the fixed column. When spliced, the fixed column respectively presses against the upper end surface of the buffer plate and the lower end surface of the limiting plate, and the vibration force is reduced by the buffer plate and the buffer spring.

[0023] Another aspect of the present invention provides a method for constructing a steel structure spliced column, which specifically includes the following steps:

[0024] S1: Pre-preparation stage: select several sets of columns, connecting columns and bolts according to the application environment;

[0025] S2: Splicing and connecting stage: several groups of columns are spliced together through several groups of connecting columns in a sleeve-type manner and fixed with several groups of bolts;

[0026] S3: Inspection and installation: Inspect the spliced steel structure columns and install them according to the application environment after the inspection.

[0027] Based on the highly stable and compatible steel structure column design and the highly efficient construction method, the present invention proposes a steel structure spliced column and construction method. Compared with the existing technology, the present invention has the following beneficial effects:

[0028] First, the steel structure spliced columns of the present invention are connected by splicing multiple groups of columns and connecting columns. Different numbers of columns and connecting columns can be flexibly selected according to the specific application environment requirements, thereby improving the low compatibility problem of traditional integrated steel structure columns in different environments.

[0029] Second: The present invention adopts a plug-in socket connection method for connecting a plurality of groups of columns and a plurality of connecting columns for a steel structure splicing column. The connection structure is simple and easy to operate, which effectively improves the construction efficiency of the steel structure column. At the same time, the present invention uses a plurality of groups of bolts to fix the spliced columns at multiple points on the basis of the plug-in socket connection, making the splicing structure of the columns more stable and not easy to loosen;

[0030] Third: The steel structure spliced column of the present invention is provided with multiple groups of buffer structures at the splicing connection of the column, which can effectively reduce various vibrations of the column caused by splicing and other environmental factors. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of a steel structure splicing column splicing structure of the present invention;

[0032] Figure 2 This is a schematic diagram of a single-column structure of a steel structure spliced column according to the present invention;

[0033] Figure 3 This is a schematic diagram of a top view of a single steel structure spliced column according to the present invention;

[0034] Figure 4 This is a schematic diagram of a steel structure splicing column connecting column structure of the present invention Figure 1 ;

[0035] Figure 5 This is a schematic diagram of a steel structure splicing column connecting column structure of the present invention Figure 2 ;

[0036] Figure 6 This is a schematic diagram of a cross-sectional structure of a steel structure spliced column connecting column according to the present invention;

[0037] Figure 7 A schematic diagram of a steel structure splicing column splicing method of the present invention Figure 1 ;

[0038] Figure 8 A schematic diagram of a steel structure splicing column splicing method of the present invention Figure 2 ;

[0039] In the figure: 1. column; 11. center column; 110. first threaded hole; 12. fixing column; 120. fixing column outer frame; 121. hollow rubber column; 122. steel bar; 2. connecting column; 21. connecting column outer frame; 210. second threaded hole; 211. limiting plate; 22. connecting block; 220. third threaded hole; 221. limiting protrusion; 23. buffer plate; 24. buffer spring; 3. bolt. DETAILED DESCRIPTION

[0040] In order to make the purposes, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 making creative work are within the scope of protection of the present invention.

[0041] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0042] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In addition, in the description of the present invention, “several” means two or more than two, unless otherwise clearly and specifically defined.

[0044] The embodiment of the present invention proposes a steel structure spliced column and a construction method based on a highly stable and highly compatible steel structure column structure design and a highly efficient construction method.

[0045] like Figure 1 As shown, an embodiment of the present invention provides a steel structure spliced column, comprising a plurality of groups of columns 1 and a plurality of groups of connecting columns 2. Each adjacent two groups of the plurality of groups of columns 1 are spliced and connected by a group of connecting columns 2. The plurality of groups of connecting columns 2 are spliced and connected in sequence by means of plug-in sleeves.

[0046] In this embodiment, if Figure 2As shown, each group of columns 1 includes a group of central columns 11 and four groups of fixed columns 12. The central column 11 is a hollow structure. The four groups of fixed columns 12 are fixedly connected at the four end points of the central column 11. The four groups of fixed columns 12 are fixedly connected at the four end points of the central column 11 to increase the compressive strength of the side points or corner points of the column 1, thereby effectively resisting external forces.

[0047] In traditional steel structure columns, because the compressive strength at the edge and corner points of the columns is much lower than that at other positions, under the action of external forces, the edge and corner points are prone to buckling due to stress concentration, causing instability of the overall structure.

[0048] In the embodiment of the present invention, the four groups of fixing columns 12 can disperse the concentrated stress, prevent the column body of the column 1 from being compressed and deformed, and avoid various adverse situations caused by stress concentration.

[0049] In this embodiment, if Figure 3 As shown, a plurality of groups of hollow rubber rings 121 and a plurality of groups of steel bars 122 are inserted into each group of fixing columns 12 , and the plurality of groups of hollow rubber rings 121 and the plurality of groups of steel bars 122 are used to improve the structural stability of the column 1 .

[0050] Several groups of hollow rubber rings 121 are made of rubber material, which has the characteristics of high resilience and high toughness, and can effectively resist deformation caused by external forces in various environments. Several groups of steel bars 122 have the characteristics of high tensile strength and bending strength, and can effectively improve the compressive strength of the column 1.

[0051] In this embodiment, if Figure 4 As shown, each group of connecting columns 2 is fixedly connected to a connecting block 22 inside. The connecting block 22 is used for socketing and splicing several groups of columns 1. When several groups of columns 1 are spliced and connected through the connecting columns 2, the central column 11 in the column 1 structure is respectively socketed on the connecting block 22 inside the connecting column 2 structure.

[0052] The center column 11 is cross-shaped, and a plurality of first threaded holes 110 are respectively provided on the four sides of the cross-shaped center column 11 . The plurality of first threaded holes 110 are used for bolt fixation after the upright column 1 and the connecting column 2 are spliced.

[0053] In this embodiment, the fixing column 12 includes a fixing column outer frame 120 , a plurality of sets of hollow rubber rings 121 are respectively inserted into the fixing column outer frame 120 , and a plurality of sets of steel bars 122 are respectively inserted into the plurality of sets of hollow rubber rings 121 .

[0054] In this embodiment, if Figure 5As shown, the connecting column 2 includes a connecting column outer frame 21, and the side surfaces of the connecting column outer frame 21 are provided with several groups of second threaded holes 210, and the size and spacing of the several groups of second threaded holes 210 are the same as those of the several groups of first threaded holes 110. The connecting block 22 is cross-shaped and fixedly connected to the inner center of the connecting column outer frame 21, and several groups of third threaded holes 220 are respectively provided on the four sides of the cross-shaped connecting block 22, and the size and spacing of the several groups of third threaded holes 220 are the same as those of the several groups of first threaded holes 110. The several groups of second threaded holes 210 and the several groups of third threaded holes 220 are all used for bolt fixing after the column 1 and the connecting column 2 are spliced, and the middle part of the structure of the connecting block 22 is also fixedly connected to a limiting protrusion 221.

[0055] In this embodiment, if Figure 6 As shown, limiting plates 211 are fixedly connected to the lower sides of the four inner ends of the connecting column outer frame 21, and several groups of buffer springs 24 are fixedly installed on the upper end surfaces of the limiting plates 211. Buffer plates 23 are fixedly installed above the several groups of buffer springs 24. The several groups of buffer springs 24 and the buffer plates 23 are used to reduce various vibrations of the column 1 caused by splicing and other environmental factors.

[0056] Specifically, a gap is provided between the connecting column outer frame 21 and the connecting block 22 for socketing the column 1. The size of the gap is the same as the structural size of the column 1. The shape and size of the connecting block 22 are the same as the shape and size of the internal cavity of the center column 11. The limiting protrusion 221 fixes the connecting block 22 and the connecting column outer frame 21. When two adjacent groups of columns 1 are spliced and connected through the connecting column 2, the center column 11 is respectively socketed on both ends of the connecting block 22, and the center column 11 is respectively against the upper and lower ends of the limiting protrusion 221.

[0057] Specifically, the positions of several groups of second threaded holes 210 and several groups of third threaded holes 220 located in the same direction overlap in the projection direction of the opening, and when splicing is performed between the connecting column 2 and the column 1, the positions of several groups of second threaded holes 210 and several groups of third threaded holes 220 overlap in the projection direction of the opening, and when splicing, several groups of second threaded holes 210, several groups of third threaded holes 220 and several groups of first threaded holes 110 are respectively connected with bolts 3 for fixation, and several groups of bolts 3 pass through the second threaded holes 210 and the third threaded holes 220 in the same direction and are bolted to the first threaded holes 110.

[0058] Among them, the sizes of the limiting plate 211 and the buffer plate 23 are the same as the cylindrical size of the fixed column 12. When splicing, the fixed column 12 respectively presses against the upper end surface of the buffer plate 23 and the lower end surface of the limiting plate 211, and the vibration force is reduced by the buffer plate 23 and the buffer spring 24.

[0059] An embodiment of the present invention further provides a method for constructing a steel structure spliced column, comprising the following steps:

[0060] S1: Pre-preparation stage: select several sets of columns 1, connecting columns 2 and bolts 3 according to the application environment;

[0061] S2: Splicing and connecting stage: several groups of columns 1 are spliced together through several groups of connecting columns 2 in a sleeve-type manner, and fixed with several groups of bolts 3;

[0062] First, align a set of columns 1 with the reserved gap between the connecting column outer frame 21 and the connecting block 22 and insert them from bottom to top. Figure 7 As shown, the gap size is the same as the structural size of the column 1. Since the shape and size of the connecting block 22 are the same as the shape and size of the internal cavity of the center column 11, the center column 11 and the connecting block 22 are exactly matched when the column 1 is inserted, and the upper end of the center column 11 is against the lower end of the limiting protrusion 221. At this time, the positions of the several groups of second threaded holes 210 and several groups of third threaded holes 220 on the connecting column 2 and the several groups of first threaded holes 110 in the same direction of the inserted column 1 are projected and overlapped in the opening direction. Several bolts 3 are respectively passed through the second threaded holes 210 and the third threaded holes 220 in the same direction and are bolted to the first threaded holes 110. At this time, the upper ends of the four groups of fixing columns 12 in the inserted column 1 structure are against the lower end surface of the limiting plate 211. Then, another group of columns 1 for splicing are aligned with the reserved gap between the connecting column outer frame 21 and the connecting block 22 and inserted into them from top to bottom, as shown Figure 8 As shown, the center column 11 and the connecting block 22 in the structure of the group of columns 1 are fixed in the same way, the lower end of the center column 11 of the group is against the upper end of the limiting protrusion 221, and the lower end of the fixing column 12 of the group is against the upper end surface of the buffer plate 23.

[0063] Use the same steps as above to splice and connect several groups of columns 1 and connecting columns 2;

[0064] S3: Inspection and installation: Inspect the spliced steel structure columns and install them according to the application environment after the inspection.

[0065] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A steel structure spliced column, characterized in that: It comprises a plurality of groups of upright columns (1) and a plurality of groups of connecting columns (2), wherein each two adjacent groups of the plurality of groups of upright columns (1) are spliced and connected via a group of the connecting columns (2), and the plurality of groups of connecting columns (2) splice and connect the plurality of groups of upright columns (1) by sleeve connection; Each group of the columns (1) includes a group of central columns (11) and four groups of fixed columns (12), the central column (11) is a hollow structure, the four groups of fixed columns (12) are respectively fixedly connected to the four end points of the central column (11), a plurality of groups of hollow rubber rings (121) and a plurality of groups of steel bars (122) are inserted into the interior of each group of the fixed columns (12), the plurality of groups of hollow rubber rings (121) and the plurality of groups of steel bars (122) are used to strengthen the structural strength of the columns (1), the central column (11) is cross-shaped, and a plurality of groups of first threaded holes (110) are respectively opened on the four sides of the cross-shaped central column (11), and the plurality of groups of first threaded holes (110) are used for bolt fixing of the columns (1) after splicing; Each group of the connecting columns (2) is fixedly connected to a connecting block (22) inside. When a plurality of groups of the upright columns (1) are spliced and connected through the connecting columns (2), the central column (11) in the upright column (1) structure is respectively sleeved on the connecting block (22) inside the connecting column (2) structure. The connecting column (2) further comprises a connecting column outer frame (21), the side surfaces of the connecting column outer frame (21) are provided with a plurality of second threaded holes (210), the connecting block (22) is cross-shaped and fixedly connected to the inner center of the connecting column outer frame (21), and the four sides of the cross-shaped connecting block (22) are provided with a plurality of third threaded holes (220), the plurality of second threaded holes (210) and the plurality of third threaded holes (220) are both used for bolt fixing after the columns (1) are spliced, the middle portion of the structure of the connecting block (22) is also fixedly connected with a limiting protrusion (221), and the four lower ends of the inner portion of the connecting column outer frame (21) are provided with a plurality of third threaded holes (220). The sides are respectively fixedly connected to the limiting plates (211), and a plurality of groups of buffer springs (24) are respectively fixedly installed on the upper end surface of the limiting plates (211), and a buffer plate (23) is respectively fixedly installed above the plurality of groups of buffer springs (24). The plurality of groups of buffer springs (24) and the buffer plate (23) are used to reduce various vibrations of the plurality of groups of the columns (1) caused by splicing and other environmental factors. The sizes of the limiting plates (211) and the buffer plates (23) are the same as the column cross-sectional size of the fixed columns (12). When splicing, the fixed columns (12) respectively abut against the upper end surface of the buffer plate (23) and the lower end surface of the limiting plate (211).

2. A steel structure spliced column according to claim 1, characterized in that: The fixed column (12) comprises a fixed column outer frame (120), the plurality of groups of hollow rubber rings (121) are respectively inserted into the interior of the fixed column outer frame (120), and the plurality of groups of steel bars (122) are respectively inserted into the interior of the plurality of groups of hollow rubber rings (121).

3. A steel structure spliced column according to claim 2, characterized in that: The size and spacing of the plurality of groups of second threaded holes (210) are the same as those of the plurality of groups of first threaded holes (110), and the size and spacing of the plurality of groups of third threaded holes (220) are the same as those of the plurality of groups of first threaded holes (110).

4. A steel structure spliced column according to claim 3, characterized in that: A gap for sleeve-fitting the column (1) is provided between the connecting column outer frame (21) and the connecting block (22), the size of the gap being the same as the structural size of the column (1), the shape and size of the connecting block (22) being the same as the shape and size of the internal cavity of the center column (11), the limiting protrusion (221) fixedly connects the connecting block (22) and the connecting column outer frame (21), and when two adjacent groups of the columns (1) are spliced and connected through the connecting column (2), the center column (11) is sleeved on both ends of the connecting block (22), and the center column (11) is respectively pressed against the upper and lower ends of the limiting protrusion (221).

5. The steel structure spliced column according to claim 4, characterized in that: The positions of the plurality of groups of second threaded holes (210) and the plurality of groups of third threaded holes (220) located in the same direction are projected and overlapped in the direction of the openings, and when the connecting column (2) and the upright column (1) are spliced and connected, the plurality of groups of second threaded holes (210) and the plurality of groups of third threaded holes (220) overlap in the direction of the openings with the positions of the plurality of groups of first threaded holes (110) located in the same direction, and bolts (3) are respectively connected to the plurality of groups of second threaded holes (210), the plurality of groups of third threaded holes (220) and the plurality of groups of first threaded holes (110) for bolt connection.

6. A construction method for a steel structure spliced column, characterized in that: A method for realizing a steel structure spliced column according to any one of claims 1 to 5 comprises the following steps: S1: Pre-preparation stage: select several sets of columns (1), connecting columns (2) and bolts (3) according to the application environment; S2: Splicing and connecting stage: splicing together a plurality of groups of columns (1) through a plurality of groups of connecting columns (2) in a sleeve-type manner, and fixing them by bolting with a plurality of groups of bolts (3); S3: Inspection and installation: Inspect the spliced steel structure columns and install them according to the application environment after the inspection.

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