High-strength anti-seismic fabricated steel structure composite column

Abstract

The utility model relates to the technical field of anti-seismic structure, concretely relates to a high -strength anti -seismic fabricated steel structure composite column, including base plate, vertical support pole, horizontal support pole, mounting plate, reinforcing cross bar, connecting rod, reinforcing rib, fixed assembly and shock attenuation subassembly, the base plate is installed on ground, the vertical support pole is installed on the top of base plate perpendicularly, and the installation mode is set up as welding and bolt installation, the horizontal support pole is installed in the middle of 2 vertical support poles, the mounting plate is arranged in the inside of vertical support pole, the reinforcing cross bar is installed on the top of mounting plate, and is perpendicularly arranged with vertical support pole, the connecting rod is installed in the top of adjacent vertical support pole, the reinforcing rib is arranged between adjacent horizontal support pole, the fixed assembly is installed on the bottom of vertical support pole, and the shock attenuation subassembly is installed on the bottom of fixed assembly.

Description

Technical Field

[0001] This utility model relates to the field of earthquake-resistant structural technology, specifically to a high-strength earthquake-resistant prefabricated steel structure composite column. Background Technology

[0002] In modern construction engineering, steel structures are widely used in various industrial plants, commercial office buildings, and high-rise residential buildings due to their advantages such as high strength, light weight, short construction period, and high recyclability. However, with the continuous increase in the size and height of urban buildings, the load and deformation capacity of structural systems in the face of natural disasters such as earthquakes are facing more severe challenges. Traditional steel structure columns are mostly constructed using welded H-beams or box columns, which perform well in terms of vertical load-bearing capacity. However, under strong earthquakes, traditional welded joints are prone to local instability and weld cracking, resulting in insufficient toughness and seismic performance of the overall structure. In addition, the welding process has high requirements for the on-site construction environment and the skill level of the technicians, and there are problems with the uniform control of welding quality, which increases construction risks and costs. Therefore, how to further improve the seismic toughness and ease of assembly construction while ensuring high load-bearing capacity has become a key technical problem that urgently needs to be solved in the field of steel structure construction.

[0003] In recent years, prefabricated building technology has gradually emerged, and prefabricated steel structures, due to their high efficiency, environmental friendliness, and energy conservation, have become an important direction for the development of green buildings. Compared with traditional cast-in-place concrete structures and welded steel structures, prefabricated steel structures, through standardized factory prefabrication and on-site modular assembly, significantly shorten the construction period and improve construction accuracy and safety. However, existing prefabricated steel composite columns still have shortcomings in terms of node connection methods, force transmission paths, and seismic energy dissipation mechanisms, making it difficult to fully meet the requirements for structural toughness and reliability in high-intensity earthquake zones. Especially under complex stress environments, the shear and bending performance of column-beam joints is poor, easily becoming weak links in the structural system. Therefore, it is urgent to develop a new type of composite column structure that combines high load-bearing capacity, high toughness, and high assembly efficiency, optimize node connection design, and enhance the overall collaborative working ability of the columns to effectively improve the safety and stability of steel structure buildings under extreme conditions such as earthquakes.

[0004] In view of the above, in order to overcome the above technical problems, this utility model designs a high-strength earthquake-resistant prefabricated steel structure composite column, which solves the above technical problems. Utility Model Content

[0005] The technical objective of this invention is to design a high-strength, earthquake-resistant prefabricated steel structure composite column, which combines high load-bearing capacity, high toughness, and high assembly efficiency. The design of node connections is optimized to enhance the overall collaborative working ability of the column, thereby effectively improving the safety and stability of steel structure buildings under extreme conditions such as earthquakes.

[0006] To achieve the above-mentioned technical objectives, this utility model provides the following technical solution:

[0007] A high-strength, seismic-resistant prefabricated steel structure composite column includes a base plate, vertical support rods, horizontal support rods, mounting plates, reinforcing crossbars, connecting rods, reinforcing ribs, fixing components, and damping components. Through a rational structural arrangement and connection method, the composite column possesses excellent load-bearing capacity and seismic performance. The base plate is installed on the ground foundation, serving as the supporting foundation for the entire composite column. It is connected to the ground using chemical anchors and high-strength bolts, ensuring the stability and reliability of the base plate and the foundation. The vertical support rods are installed vertically above the base plate and are connected to the base plate using a dual fixing method of welding and bolts, effectively improving the overall tensile and shear strength of the composite column, while also facilitating later disassembly, replacement, and maintenance.

[0008] Horizontal support rods are installed between the vertical support rods to enhance the horizontal stability of the column. These horizontal support rods are connected to the vertical support rods with high-strength bolts, effectively distributing lateral loads and preventing excessive horizontal displacement of the column under seismic loads. Mounting plates are installed inside the vertical support rods, fitting tightly against the inner wall of the support rods, providing installation support for the reinforcing crossbars. The reinforcing crossbars are horizontally positioned above the mounting plates, perpendicular to the vertical support rods, giving the composite column stronger lateral stiffness and bending resistance. Connecting rods are installed at the top of adjacent vertical support rods, forming a closed-loop force path, further enhancing the overall stability and seismic toughness of the composite column.

[0009] In addition, reinforcing ribs are added between the horizontal support rods to enhance the rigidity and shear resistance of the horizontal components, preventing structural instability and failure under dynamic loads. The fixing components are installed at the bottom of the vertical support rods and tightly connected to the base plate, providing additional reinforcement and ensuring more uniform and reliable transmission of vertical forces. Below the fixing components, a damping component is installed. This component effectively absorbs seismic energy through a combination of polymer buffer pads and rubber vibration isolation pads, reducing the destructive force of vibration on the composite column structure. This achieves both active damping and passive buffering effects, further enhancing the safety and adaptability of the prefabricated steel structure building under seismic conditions.

[0010] Two horizontal support rods are installed in the same horizontal plane, and the two horizontal support rods are firmly connected by high-strength welding and bolt fixing, ensuring that the support rods have excellent rigidity and stability when bearing horizontal loads and seismic lateral forces, preventing the structure from loosening or deforming during the stress process. At the same time, between two adjacent horizontal support rods, there are reinforcing ribs arranged in an "X" shape. The reinforcing ribs are tightly connected to the support rods by bolts and welds to form an effective force transfer path, which significantly improves the shear and torsional resistance of the horizontal support system and enhances the overall stability and seismic toughness of the composite column under complex stress environments.

[0011] A support partition is installed at the middle position of the horizontal support rod. After precise positioning, the support partition is fixed to the horizontal support rod using a combination of welding and riveting, making the connection between the partition and the support rod more robust and reliable, ensuring the continuity and stability of force transmission. The support partition not only effectively enhances the stiffness of the horizontal support rod under compression and shear conditions, preventing local buckling or lateral deformation under load, but also optimizes the stress distribution of the overall structure, improving the load-bearing capacity and structural toughness of the composite column under seismic conditions, providing a more solid support guarantee for the entire steel structure system.

[0012] The reinforcing crossbar consists of reinforcing steel plates and bolts. The reinforcing steel plates have a C-shaped semi-enclosed cross-section, effectively wrapping and reinforcing the installation area, improving its local bending and shear resistance. The reinforcing steel plates are tightly fixed to the mounting plate by multiple sets of high-strength bolts. The bolts are evenly distributed on the upper surface of the reinforcing steel plates and align with the pre-drilled bolt holes on the mounting plate, ensuring uniform stress distribution at the connection points and preventing loosening or displacement under load. This structure not only simplifies on-site installation and improves assembly accuracy but also effectively enhances the stability and load-bearing capacity of the transverse components under complex conditions such as earthquakes and wind loads, ensuring the overall safety and reliability of the steel composite column.

[0013] The fixing assembly includes a fixing block, a mating groove, a limiting groove, and a positioning groove. Each component is designed to fit together tightly for a stable connection and precise positioning. The fixing block is installed below the vertical support rod and is securely connected to the bottom structure via welding and bolts, enhancing the overall load-bearing capacity. The mating groove is located on the lower surface of the fixing block, and its dimensions match the mounting base for quick docking and installation. The limiting groove is located on the inner side of the mating groove and is used to engage and limit the structure, preventing lateral displacement or rotational shift of the fixing block under stress. The positioning groove is located in the middle between adjacent limiting grooves and, through engagement with a protrusion on the base, ensures precise alignment of the fixing block during installation, improving assembly accuracy and structural stability, and ensuring the overall composite column has good anti-slip and anti-torsional performance under earthquake and other conditions.

[0014] The limiting groove is designed with a standard rectangular cross-section, featuring straight sides and precise dimensions. This allows it to form a stable snap-fit ​​with the matching limiting protrusion, effectively preventing lateral slippage or displacement of the component under stress and enhancing the overall stability and shear resistance of the structure. The positioning groove, on the other hand, has a circular cross-section. This circular groove structure facilitates quick alignment and engagement with the cylindrical positioning pins or protrusions on the mounting base. Furthermore, it disperses stress concentration under multi-directional forces, avoiding the potential for structural damage due to stress concentration at sharp corners. This further improves the ease of installation and the precision and durability of the finished structure.

[0015] The vibration damping assembly includes a damping plate, damping columns, limiting blocks, damping springs, and positioning columns. These components work together to effectively absorb and buffer vibration energy from the foundation or the structure itself, improving the overall seismic performance. The damping plate, located at the bottom of the assembly, is bolted to the foundation base and serves as the load-bearing base of the entire damping structure, ensuring its stability under stress. The damping column is vertically installed above the damping plate, possessing good compressive strength and buffering capacity. Limiting blocks are installed on both sides of the column, tightly engaging to limit lateral displacement during vibration, ensuring the damping action remains within controllable limits. The damping spring is embedded within the damping block to absorb instantaneous impact energy during structural vibration, achieving a dynamic buffering effect. The positioning column is installed between two adjacent limiting blocks, ensuring the damping column remains in the accurate stress position through its cooperation with the limiting blocks, effectively improving the damping efficiency and structural stability of the assembly under earthquake or wind loads.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model provides a high-strength, seismic-resistant prefabricated steel structure composite column. Through optimized structural design and connection methods, it significantly improves the overall structural load-bearing capacity and seismic performance. The dual fixing of the base plate and vertical support rods via welding and bolts enhances the composite column's stability and pull-out resistance under vertical loads. The rational arrangement of horizontal support rods, reinforcing ribs, and crossbars effectively improves the column's lateral stiffness and bending resistance, preventing structural deformation and instability under lateral loads such as earthquakes or strong winds. Furthermore, the multiple limiting designs of matching grooves, limiting grooves, and positioning grooves ensure the accuracy and stability of the connections between column components, improving overall assembly precision and installation convenience, and meeting the application requirements of high-strength, high-toughness prefabricated steel structures for high-rise buildings, large-span factory buildings, and other structural systems.

[0018] 2. This utility model also innovatively incorporates a damping component with both active buffering and passive damping effects. Through the coordinated work of the damping plate, damping column, limiting block, damping spring, and positioning column, it effectively absorbs and dissipates the impact energy transmitted by seismic waves to the structure, significantly reducing stress concentration and fatigue damage under vibration, and enhancing the overall seismic toughness and safety of the structure. This damping component adopts a modular design, facilitating factory prefabrication and rapid on-site assembly, reducing construction time and labor costs. It also offers excellent maintenance and replacement convenience, making it suitable for steel structure building systems under various complex stress environments. It is particularly suitable for the high-standard application requirements of prefabricated buildings in high-intensity seismic areas, and has significant potential for widespread application. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] The above and other aspects of the present invention will now be described by way of example only, with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram showing the positions of the fixing component and the shock-absorbing component of this utility model;

[0023] Figure 3 This is a schematic diagram of the installation relationship of this utility model;

[0024] Figure 4 This is a utility model Figure 3 A magnified view of a portion of the image;

[0025] Figure 5 This is a schematic diagram showing the installation relationship between the fixing component and the shock absorption component of this utility model;

[0026] Figure 6 This is a schematic diagram of the fixing component structure of this utility model;

[0027] Figure 7 This is a schematic diagram of the shock absorption component structure of this utility model.

[0028] In the diagram: 1. Base plate; 2. Vertical support rod; 3. Horizontal support rod; 31. Support partition; 4. Mounting plate; 5. Reinforcing crossbar; 51. Reinforcing steel plate; 52. Bolt; 6. Connecting rod; 7. Reinforcing rib; 8. Fixing assembly; 81. Fixing block; 82. Mating groove; 83. Limiting groove; 84. Positioning groove; 9. Vibration damping assembly; 91. Vibration damping plate; 92. Vibration damping column; 93. Limiting block; 94. Vibration damping spring; 95. Positioning column. Detailed Implementation

[0029] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0030] like Figure 1-7 As shown, a high-strength, seismic-resistant prefabricated steel structure composite column includes a base plate 1, vertical support rods 2, horizontal support rods 3, mounting plate 4, reinforcing crossbars 5, connecting rods 6, reinforcing ribs 7, fixing components 8, and damping components 9. Through a reasonable structural arrangement and connection method, the composite column possesses excellent load-bearing capacity and seismic performance. The base plate 1 is installed on the ground foundation, serving as the supporting foundation for the entire composite column. It is connected to the ground using chemical anchors and high-strength bolts 52, ensuring the stability and reliability of the base plate 1 and the foundation. The vertical support rods 2 are vertically installed above the base plate 1 and are connected to the base plate 1 using a dual fixing method of welding and riveting, effectively improving the overall tensile and shear strength of the composite column, while also facilitating later disassembly, replacement, and maintenance.

[0031] Horizontal support rods 3 are installed between the vertical support rods 2 to enhance the horizontal stability of the column. The horizontal support rods 3 are connected to the vertical support rods 2 by high-strength bolts 52, effectively distributing lateral loads and preventing excessive horizontal displacement of the column under seismic loads. Mounting plates 4 are installed inside the vertical support rods 2, fitting tightly against the inner wall of the support rods, providing installation support for the reinforcing crossbars 5. The reinforcing crossbars 5 are horizontally positioned above the mounting plates 4, perpendicular to the vertical support rods 2, giving the composite column stronger lateral stiffness and bending resistance. Connecting rods 6 are installed at the top of adjacent vertical support rods 2, forming a closed-loop force path, further enhancing the overall stability and seismic toughness of the composite column.

[0032] In addition, reinforcing ribs 7 are added between the horizontal support rods 3 to enhance the rigidity and shear resistance of the horizontal components and prevent structural instability and failure under dynamic loads. The fixing assembly 8 is installed at the bottom of the vertical support rod 2 and is tightly connected to the base plate 1, providing additional reinforcement and ensuring more uniform and reliable transmission of vertical forces. Below the fixing assembly 8, a damping assembly 9 is installed. This damping assembly 9 effectively absorbs seismic energy by combining polymer buffer pads and rubber vibration isolation pads, reducing the destructive force of vibration on the composite column structure. This achieves both active damping and passive buffering effects, further enhancing the safety and adaptability of the prefabricated steel structure building under seismic conditions.

[0033] like Figure 3 As shown, two horizontal support rods 3 are arranged in the same horizontal plane. The two horizontal support rods 3 are firmly connected by high-strength welding and bolts 52, ensuring that the support rods have excellent rigidity and stability when bearing horizontal loads and seismic lateral forces, preventing the structure from loosening or deforming during the stress process. At the same time, between two adjacent horizontal support rods 3, reinforcing ribs 7 are arranged in an "X" shape. The reinforcing ribs 7 are tightly connected to the support rods by bolts 52 and welds, forming an effective force transmission path, which significantly improves the shear and torsional resistance of the horizontal support system and enhances the overall stability and seismic toughness of the composite column under complex stress environments.

[0034] A support partition 31 is installed at the middle position of the horizontal support rod 3. After precise positioning, the support partition 31 is fixed to the horizontal support rod 3 by a combination of welding and riveting, making the connection between the partition and the support rod more robust and reliable, ensuring the continuity and stability of force transmission. The installation of the support partition 31 not only effectively enhances the stiffness of the horizontal support rod 3 under compression and shear conditions, preventing local buckling or lateral deformation of the support rod under load, but also optimizes the stress distribution of the overall structure, improves the load-bearing capacity and structural toughness of the composite column under seismic conditions, and provides a more solid support guarantee for the entire steel structure system.

[0035] like Figure 4As shown, the reinforcing crossbar 5 consists of a reinforcing steel plate 51 and bolts 52. The cross-sectional structure of the reinforcing steel plate 51 is designed in a C-shaped semi-enclosed form, which can effectively wrap and reinforce the installation part, improving its local bending and shear resistance. The reinforcing steel plate 51 is tightly fixed to the mounting plate 4 by multiple sets of high-strength bolts 52. The bolts 52 are evenly distributed on the upper surface of the reinforcing steel plate 51 and align with the reserved bolt holes of the mounting plate 4 to ensure uniform stress at the connection point and prevent loosening or displacement under load. This structure not only simplifies the on-site installation process and improves assembly accuracy, but also effectively enhances the stability and load-bearing capacity of the transverse components under complex conditions such as earthquakes and wind loads, ensuring the overall safety and reliability of the steel structure composite column.

[0036] like Figure 6 As shown, the fixing component 8 includes a fixing block 81, a mating groove 82, a limiting groove 83, and a positioning groove 84. The structural design of each part is tightly fitted to achieve a stable connection and precise positioning. The fixing block 81 is installed below the vertical support rod 2, and is firmly connected to the bottom structure by welding and bolts 52, enhancing the overall load-bearing capacity. The mating groove 82 is located on the lower surface of the fixing block 81, and its size matches the mounting base, enabling quick docking and installation. The limiting groove 83 is formed on the inner side of the mating groove 82, used to engage and limit the structure, preventing the fixing block 81 from lateral displacement or rotational shift under stress. The positioning groove 84 is located in the middle between adjacent limiting grooves 83, and through its engagement with a protrusion on the base, ensures precise alignment of the fixing block 81 during installation, improving assembly accuracy and structural stability, and ensuring that the overall composite column has good anti-slip and anti-torsion performance under earthquake and other conditions.

[0037] The limiting groove 83 is designed with a standard rectangular cross-section, featuring straight sides and precise dimensions. This allows it to form a stable snap-fit ​​with the matching limiting protrusion, effectively preventing lateral slippage or displacement of the component under stress and enhancing the overall stability and shear resistance of the structure. The positioning groove 84, on the other hand, has a circular cross-section. This circular groove structure facilitates quick alignment and engagement with the cylindrical positioning pins or protrusions on the mounting base. Furthermore, it disperses stress concentration under multi-directional stress, preventing structural damage caused by stress concentration at sharp corners. This further improves the ease of installation and the precision and durability of the finished structure.

[0038] like Figure 7As shown, the damping assembly 9 includes a damping plate 91, a damping column 92, a limiting block 93, a damping spring 94, and a positioning column 95. These components work together to effectively absorb and buffer vibration energy from the foundation or the structure itself, improving the overall seismic performance. The damping plate 91 is located at the bottom of the damping assembly 9 and is connected to the foundation base by bolts 52, serving as the load-bearing base of the entire damping structure and ensuring its stability under stress. The damping column 92 is vertically installed above the damping plate 91, possessing good compressive strength and buffering capacity. Limiting blocks 93 are installed on both sides of the column, which fit tightly with the column to limit lateral displacement during vibration, ensuring that the damping action is within a controlled range. The damping spring 94 is embedded inside the damping block to absorb the instantaneous impact energy during structural vibration, achieving a dynamic buffering effect. The positioning column 95 is installed in the middle of two adjacent limiting blocks 93. Through cooperation with the limiting blocks 93, it ensures that the damping column 92 is always in the accurate stress position, effectively improving the damping efficiency and structural stability of the damping component 9 under earthquake or wind load.

[0039] In operation, the base plate 1 is firmly connected to the foundation via high-strength bolts 52, serving as the load-bearing base of the entire structure and responsible for evenly distributing the vertical load and lateral force transmitted from the upper structure to the foundation ground. The fixing assembly 8, through the precise cooperation of the mating groove 82, limiting groove 83, and positioning groove 84, ensures a stable and accurate connection between the column and the base plate 1, preventing loosening, slippage, or displacement due to vibration, and ensuring that the column will not experience bottom instability under earthquake impact. The vertical support rod 2 is the main load-bearing component of the composite column, bearing the vertical load and part of the lateral force of the building. The horizontal support rod 3 is installed between the vertical support rods 2, forming a rigid frame structure through welding and bolts 52, improving the lateral stability and bending resistance of the column, effectively resisting the shear and torsional forces generated by earthquakes, and preventing the structure from swaying and overturning in the horizontal direction. The reinforcing crossbar 5 adopts a C-shaped semi-enclosed reinforcing steel plate 51 structure, connected to the mounting plate 4 via bolts 52, giving the column joints stronger bending and shear resistance. Reinforcing ribs 7 are arranged intersectingly between horizontal support rods 3, forming an "X"-shaped support system. This further enhances the overall rigidity and lateral displacement resistance of the column, effectively disperses stress concentration areas under seismic action, and improves the structure's energy dissipation capacity and toughness. The damping assembly 9 is located at the bottom of the composite column and consists of a damping plate 91, a damping column 92, a limiting block 93, a damping spring 94, and a positioning column 95. The damping spring 94 works in conjunction with the rubber buffer pad to absorb the impact energy transmitted from seismic waves to the column. The cooperation between the damping column 92 and the limiting block 93 suppresses the lateral and vertical displacement of the column during vibration, achieving a dual damping effect of active buffering and passive limiting. This significantly reduces the stress and deformation experienced by the column structure during earthquakes, ensuring the safe and stable operation of the overall structure.

[0040] The technical features disclosed above are not limited to combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of this disclosure to achieve the intended purpose. The description herein is provided to enable those skilled in the art to implement or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein. Although one or more exemplary embodiments of this disclosure have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the appended claims. While this disclosure has been described in detail above with general description and specific embodiments, modifications or improvements can be made to the embodiments of this disclosure, which will be apparent to those skilled in the art. Therefore, such modifications or improvements made without departing from the spirit of this disclosure are within the scope of protection claimed herein. The above description is merely illustrative of this disclosure, and modifications may be made to the present invention in light of the above detailed description. The terminology used in the appended claims should not be construed as limiting the present invention to the specific embodiments disclosed in the specification. Rather, the scope of the present invention will be fully defined by the appended claims, which will be interpreted according to established principles of claim interpretation.

Claims

1. A high-strength, seismic-resistant prefabricated steel structure composite column, characterized in that, It includes a base plate (1), a vertical support rod (2), a horizontal support rod (3), a mounting plate (4), a reinforcing crossbar (5), a connecting rod (6), a reinforcing rib (7), a fixing component (8), and a shock-absorbing component (9); The base plate (1) is installed on the ground, and the vertical support rod (2) is installed vertically on the top of the base plate (1). The installation method is set to welding and bolt (52) installation; the horizontal support rod (3) is installed in the middle of the two vertical support rods (2), the mounting plate (4) is set inside the vertical support rod (2), the reinforcing crossbar (5) is installed on the top of the mounting plate (4) and is set perpendicular to the vertical support rod (2), the connecting rod (6) is installed at the top of the adjacent vertical support rod (2), and the reinforcing rib (7) is set between the adjacent horizontal support rods (3); the fixing component (8) is installed below the vertical support rod (2), and the shock absorption component (9) is installed below the fixing component (8).

2. The high-strength seismic-resistant prefabricated steel structure composite column according to claim 1, characterized in that: Two horizontal support rods (3) are provided on the same plane. The two horizontal support rods (3) are fixedly connected by welding and riveting. The reinforcing ribs (7) are arranged crosswise between the two adjacent horizontal support rods (3).

3. A high-strength, seismic-resistant prefabricated steel structure composite column according to claim 1, characterized in that: A support partition (31) is provided in the middle of the horizontal support rod (3), and the support partition (31) is fixed by welding and riveting.

4. A high-strength, seismic-resistant prefabricated steel structure composite column according to claim 1, characterized in that: The reinforcing crossbar (5) includes a reinforcing steel plate (51) and bolts (52); The cross section of the reinforcing steel plate (51) is set as a C-shaped semi-enclosed structure. The bolt (52) is installed on the top of the reinforcing steel plate (51) and the bolt (52) fixes the reinforcing steel plate (51) to the mounting plate (4).

5. A high-strength, seismic-resistant prefabricated steel structure composite column according to claim 1, characterized in that: The fixing component (8) includes a fixing block (81), a mating groove (82), a limiting groove (83), and a positioning groove (84); The fixing block (81) is installed below the vertical support rod (2), the mating groove (82) is opened below the fixing block (81), the limiting groove (83) is opened on the inner side of the mating groove (82), and the positioning groove (84) is opened in the middle of the adjacent limiting groove (83).

6. A high-strength, seismic-resistant prefabricated steel structure composite column according to claim 5, characterized in that: The cross-sectional shape of the limiting groove (83) is set to rectangular, and the cross-sectional shape of the positioning groove (84) is set to circular.

7. A high-strength, seismic-resistant prefabricated steel structure composite column according to claim 1, characterized in that: The shock absorption assembly (9) includes a shock absorption plate (91), a shock absorption column (92), a limiting block (93), a shock absorption spring (94), and a positioning column (95); The damping plate (91) is located in the lower part of the damping assembly (9), the damping column (92) is installed on the top of the damping plate (91), the limiting block (93) is installed on the side of the damping column (92), the damping spring (94) is installed inside the damping block, and the positioning column (95) is installed in the middle of two adjacent limiting blocks (93).

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