Assembly type steel structure center bearing column

Abstract

The invention relates to an assembly type steel structure center bearing column which comprises a concrete base, and an installation groove cavity is formed in the concrete base. A plurality of groups of prefabricated steel supports are arranged in the mounting groove cavity, and an inserting cavity is defined by the plurality of groups of prefabricated steel supports; the outer wall of the center adjusting supporting pipe is combined with the inserting cavity in an abutting mode. The lower end of the central column is combined with the bottom of the mounting cavity; the profile steel cross beams are horizontally arranged at the upper end of the center stand column, the middle connecting bodies are arranged at the connecting ends of the adjacent profile steel cross beams, rigid ropes are arranged on the middle connecting bodies, one ends of the rigid ropes are connected with the center adjusting supporting pipe, and the adjusting mechanism adjusts the center adjusting supporting pipe to ascend and descend in the vertical direction to tension the rigid ropes. The center bearing column can facilitate installation of the stand column and the base and can support the stand column so as to resist uneven horizontal torque applied to the stand column by a profile steel cross beam, the combination stability of the stand column and the base is ensured, and the stability of a whole steel structure building is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of steel structures, and in particular to a central bearing column of an assembled steel structure. Background Art

[0002] Prefabricated building steel structure is a building structure made of steel materials, mainly including steel sections, steel plates, steel columns and steel trusses. Due to its advantages of light weight, convenient construction and recyclable reuse, it is widely used in large-scale construction fields such as large factories and venues. At present, most prefabricated building steel structures are usually assembled and fixed by welding, bolting or rivet connection during the assembly and connection process.

[0003] When the steel structure building is used in a small high-rise or high-rise residential building, the simple frame structure poses a challenge to the stability of the entire steel structure. Therefore, in actual applications, there is generally a steel column structure. By vertically arranging multiple groups of column structures on the building base, the stability of the entire steel structure is improved. A steel crossbeam is set at the upper end of the column. By setting the crossbeam structure, the columns form a whole. When installing the column and the base, bolts are generally embedded in the base. The embedded bolts are vertical and enclosed to form a cylindrical shape. The column is in the shape of a circular tube as a whole. A mounting cap is set at the lower end of the column. The mounting cap is provided with perforations in the circumferential direction. During actual construction, the column is hoisted by hoisting equipment. It is installed on the top of the base, and the embedded bolts are passed through the through holes on the mounting caps. By setting the fastening bolts, the fixed connection between the column and the base is achieved. During the above construction, it is difficult to hoist and install the embedded screws and the columns, and repeated correction is required, which makes the installation inconvenient. In addition, since the columns support the entire steel structure, the columns not only bear the vertical stress imposed on the columns by the steel beams, but also have horizontal stress. When the horizontal stress borne by the columns is uneven, it is easy to cause wear at the connection between the columns and the base. As the years of use increase, the embedded screws between the columns and the base are bent and deformed, which leads to the risk of connection stability between the columns and the base. Summary of the invention

[0004] The purpose of the present invention is to provide a central load-bearing column of an assembled steel structure, which can facilitate the installation of the column and the base, and can support the column to resist the uneven horizontal moment applied to the column by the steel beam, ensure the stability of the combination of the column and the base, and ensure the stability of the entire steel structure building.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A central bearing column of an assembled steel structure, comprising

[0007] A concrete base, on which a mounting groove cavity is arranged;

[0008] Prefabricated steel supports, multiple groups of which are arranged in the installation slot cavity, the prefabricated steel supports are fastened to the inner wall of the installation slot cavity, and multiple groups of the prefabricated steel supports are enclosed to form a plug-in cavity;

[0009] A center adjustment support tube is disposed in the plug-in chamber, and an outer wall of the center adjustment support tube is abutted against and combined with the plug-in chamber;

[0010] A central column, which is arranged at the central position of the central support tube, and the lower end of which is combined with the bottom of the installation groove cavity;

[0011] A steel beam is horizontally arranged at the upper end of the central column, and a plurality of steel beams are arranged at intervals along the circumferential direction of the central column;

[0012] The intermediate connector is arranged at the connecting end of adjacent steel beams, and a rigid rope is extended on the intermediate connector, one end of the rigid rope is connected to the upper end of the central adjustment support tube, and the adjustment mechanism adjusts the vertical lifting of the central adjustment support tube and tightens the rigid rope.

[0013] The present invention also has the following features:

[0014] In a preferred embodiment of the invention, a supporting body is provided on the outer wall of the center-adjustable support tube, and the supporting body is arranged along the circumferential direction of the outer wall of the center-adjustable support tube. One end of the supporting body is connected to the outer wall of the center-adjustable support tube, and the other end of the supporting body is connected to the prefabricated steel support.

[0015] In a preferred embodiment of the invention, the upper end of the central column is plug-fitted with the lower end of the plug-in column, and the plug-in column and the steel beam are arranged at the upper end of the plug-in column.

[0016] In a preferred embodiment of the invention, gaps are provided between adjacent prefabricated steel supports, the adjustment mechanism includes an adjusting arc surface provided on the lower plate surface of the prefabricated steel supports, the adjusting arc surface includes a first plane and a second plane, the first plane is lower than the second plane, and there is an arc transition between the first plane and the second plane, and a supporting end is provided at one end of the support body, and the supporting end abuts against the first plane or the second plane.

[0017] In a preferred embodiment of the invention, the groove of the installation groove cavity is an overall closed circular structure, and a support table is provided on the edge of the prefabricated steel support, and the support table cooperates with the step of the inner wall of the groove of the installation groove cavity. A support roller is provided at one end of the support body, and the support roller is horizontal and arranged along the radial direction of the center adjustment support tube. The roller body of the support roller abuts against the first plane or the second plane, and a support spring is sleeved on the center adjustment support tube, and the upper and lower ends of the support spring respectively abut against the outer wall of the center adjustment support tube and the bottom of the installation groove cavity.

[0018] In a preferred embodiment of the invention, the support roller is rotatably arranged on a roller frame, and the roller frame is installed on the support roller, and the support roller is sleeved on the outside of the center adjustment support tube, and the outer wall of the support roller abuts against the inner wall of the prefabricated steel support, and a connecting slide rod is vertically slidably arranged on the roller frame, and the upper end of the connecting slide rod is hinged to one end of the connecting arm through a connecting seat, and a connecting spring is sleeved on the connecting slide rod, and the upper and lower ends of the connecting spring abut against the connecting seat and the roller frame respectively, and the other end of the connecting arm is hinged to the connecting slider, and the hinge axes at both ends of the connecting arm are horizontal and perpendicular to the axial direction of the support roller, and the connecting slider is slidably arranged in a groove on the outer wall of the center adjustment support tube, and the groove is arranged along the length direction of the center adjustment support tube.

[0019] In a preferred embodiment of the invention, a support base is provided at the lower end of the central column, and when the support roller abuts against the first plane, the roller body of the support roller abuts against the upper plate surface of the support base.

[0020] In a preferred embodiment of the invention, the central column comprises two groups of channel steel plates, the two groups of channel steel plates are vertically arranged with the bottom of the grooves close together, two groups of plug-in plates are vertically arranged on the plug-in column, the inner side surfaces of the two groups of channel steel plates are provided with a first inclined surface, the two groups of plug-in plates are provided with a second inclined surface, the two groups of plug-in plates are respectively inserted into the grooves of the two groups of channel steel plates and the first inclined surface is abutted against the second inclined surface, a sleeve is provided on the periphery of the two groups of channel steel plates, and the lower end pipe opening of the plug-in column is inserted into the upper end pipe opening of the sleeve.

[0021] In a preferred embodiment of the invention, two groups of steel beams are fixed in the upper and lower directions, and the intermediate connecting body includes a plug-in connector arranged at one end of the steel beam, the plug-in connector is horizontal and inserted in the groove cavity of an adjacent steel beam, and a plug-in beam is also arranged at one end of the steel beam, and a plurality of groups of support rollers are arranged at intervals on the plug-in beam, and the plurality of groups of support rollers are clamped in the groove cavity at one end of an adjacent steel beam, and a guide slide bar is also arranged at one end of the steel beam, and the guide slide bar is horizontal and arranged parallel to the steel beam, and one end of the guide slide bar forms a sliding fit with one end of an adjacent steel beam, and a guide spring is sleeved on the guide slide bar, and the two ends of the guide spring respectively abut against the end faces of two adjacent steel beams, and one end of the rigid rope is connected to one end of the plug-in beam, and the rigid rope extends along the steel beam to the plug-in column and is connected to the upper end of the center adjustment support tube.

[0022] The upper end of the plug-in column is provided with a receiving groove for clamping one end of the steel beam, a first combining plate is provided on one side of the receiving groove, a groove for a rigid rope to pass through is provided on the first combining plate, a second combining plate is provided at one end of the steel beam, and an adjusting screw is provided between the second combining plate and the first combining plate.

[0023] The technical effect achieved by the present invention is as follows: during the actual construction of the central load-bearing column, a slow-setting soil base is prefabricated on the base surface, an installation groove cavity is reserved on the concrete base, a prefabricated steel support is placed in the installation groove cavity, a plurality of prefabricated steel supports are arranged in a circumferential direction of the installation groove cavity, the prefabricated steel supports are tightly connected to the inner wall of the installation groove cavity, and a plurality of prefabricated steel supports are enclosed to form an insertion cavity, a central adjustment support tube is inserted in the cylindrical insertion cavity enclosed by the plurality of prefabricated steel supports, and the outer wall abuts against the cylindrical insertion cavity, a central column is arranged in the central adjustment support tube, and a steel beam is installed on the upper end of the central column, and then By implementing support for the steel beam, the reliable support of the center adjustable support tube can form a reliable support for the center column, thereby forming a strong support for the circumferential direction of the center column, to replace the avoidance brought by the existing screw fastening method, and by arranging a rigid rope on the intermediate connector between adjacent steel beams, the vertical descent of the center adjustable support tube can be adjusted by the adjustment mechanism, and then the rigid rope can be tightened, so that the center column can be subjected to uniform horizontal torque in the circumferential direction, thereby ensuring the stability of the combination of the column and the base, and ensuring the stability of the entire steel structure building. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a front view of a central bearing column of a prefabricated steel structure in an embodiment of the present invention in a use state;

[0025] Figure 2It is a structural schematic diagram of a central bearing column of a prefabricated steel structure in an embodiment of the present invention in a use state;

[0026] Figure 3 It is a structural schematic diagram of the assembly of the upper end of the central bearing column of the assembled steel structure and the steel beam in one embodiment of the present invention;

[0027] Figure 4 It is a schematic diagram of the upper end structure of the plug-in column in the central bearing column of the assembled steel structure in one embodiment of the present invention;

[0028] Figure 5 and Figure 6 They are schematic structural diagrams of two viewing angles of an intermediate connector in a central load-bearing column of an assembled steel structure in one embodiment of the present invention;

[0029] Figure 7 It is a schematic cross-sectional structure diagram of an intermediate connector in a central bearing column of an assembled steel structure in one embodiment of the present invention;

[0030] Figure 8 It is a partial structural schematic diagram of a central bearing column of an assembled steel structure in one embodiment of the present invention;

[0031] Fig. 9 yes Figure 8 A schematic diagram of the cross-sectional structure of;

[0032] Fig.10 Yes, this is a plan view of 9;

[0033] Fig.11 It is a structural schematic diagram of the assembly of a concrete base, a prefabricated steel support and a support and tension body in a central bearing column of an assembled steel structure in one embodiment of the present invention;

[0034] Fig.12 and Fig.13 They are schematic diagrams of the structure of the concrete base and the prefabricated steel support assembly in the central bearing column of the assembled steel structure in one embodiment of the present invention;

[0035] Fig.14 It is a structural schematic diagram of a concrete base in a central bearing column of an assembled steel structure in one embodiment of the present invention. DETAILED DESCRIPTION

[0036] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described in conjunction with the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention. As used herein, the terms "parallel" and "perpendicular" are not limited to their strict geometric definitions, but include tolerances for reasonable and inconsistent machining or human errors;

[0037] The following is combined with Figures 1 to 14 , the central bearing column of the assembled steel structure of the present invention is described in detail:

[0038] In the existing prefabricated steel structure houses, especially small high-rise or high-rise houses, when the central column is actually constructed, the central column is in the shape of a round tube as a whole, and a mounting cap is arranged at the lower end of the central column. The mounting cap is provided with perforations in the circumferential direction. During the actual construction, the central column is hoisted to the top of the base by hoisting equipment, and the embedded bolts are passed through the perforations on the mounting cap. By setting fastening bolts, the central column and the base are fixedly connected. During the above construction, it is difficult to hoist and install the embedded screws and the columns, and repeated correction is required, which is inconvenient to install. In addition, since the columns support the entire steel structure, the columns are subjected to vertical stress imposed by the steel beams and also to horizontal stress. When the horizontal stress borne by the columns is in an uneven state, it is easy to cause wear of the connection between the columns and the base. As the service life increases, the embedded screws between the columns and the base are bent and deformed, which leads to the risk of connection stability between the columns and the base. In this regard, the present invention proposes an assembled steel structure central bearing column, including a concrete base 100. 0 is provided with an installation groove cavity 110; a plurality of prefabricated steel supports 200 are provided in the installation groove cavity 110, the prefabricated steel supports 200 are fastened to the inner wall of the installation groove cavity 110, and the plurality of prefabricated steel supports 200 are enclosed to form a plug-in cavity; a central adjustment support tube 300 is provided in the plug-in cavity, and the outer wall of the central adjustment support tube 300 is abutted against the plug-in cavity; a central column 500 is provided at the central position of the central support tube 300, and the lower end is connected to the groove bottom of the installation groove cavity 110. The steel beam 600 is horizontally arranged at the upper end of the central column 500, and the steel beam 600 is arranged in multiple groups at intervals along the circumferential direction of the central column 500; the intermediate connecting body 700 is arranged at the connecting end position of the adjacent steel beams 600, and a rigid rope 900 is extended on the intermediate connecting body 700, one end of the rigid rope 900 is connected to the upper end of the central adjustment support tube 300, and the adjustment mechanism adjusts the vertical lifting of the central adjustment support tube 300, and implements the tightening of the rigid rope 900.

[0039] In one embodiment, see Fig.12 and Fig.13As shown, during the actual construction, the building base surface is processed, and foundation piles are pre-driven to stabilize the building base surface and avoid deformation of the foundation. A concrete base 100 is prefabricated on the base surface by concrete and steel bars. An installation groove cavity 110 is reserved on the concrete base 100. The installation groove cavity 110 is in the shape of a stepped hole with a small top and a large bottom. The prefabricated steel support 200 is hoisted into the installation groove cavity 110 by hoisting equipment. The prefabricated steel support 200 is in a petal-shaped structure. Four groups of prefabricated steel supports can be arranged in the circumferential direction of the installation groove cavity 110. The four groups of installation groove cavities 110 are arranged in the circumferential direction of the installation groove cavity 110. 0 is enclosed to form a rigid foundation support, the prefabricated steel support 200 is firmly connected to the inner wall of the installation groove cavity 110, the central adjustment support tube 300 is inserted into the plug-in cavity enclosed by the four groups of installation groove cavities 110, and the outer wall of the central adjustment support tube 300 is in contact with the inner wall of the plug-in cavity, thereby ensuring that the central adjustment support tube 300, the prefabricated steel support 200 and the concrete base 100 form a stable whole, and a central column 500 is arranged on the inner wall of the central adjustment support tube 300, thereby forming a stable support for the central column 500.

[0040] In one embodiment, a steel beam 600 is installed at the upper end of the central column 500, and a plurality of steel beams 600 are horizontally arranged at intervals along the circumferential direction of the central column 500. The upper ends of adjacent central columns 500 are each provided with a steel beam 600, and adjacent steel beams 600 are connected as a whole through an intermediate connector 700, and a rigid rope 900 is provided on the intermediate connector 700. One end of the rigid rope 900 extends to connect with the upper end of the central adjustment support tube 300. The central adjustment support tube 300 is adjusted to rise and fall in the vertical direction by an adjustment mechanism, and the rigid rope 900 is tightened. Four groups of steel beams 600 are arranged at intervals in the circumferential direction of the upper end of the central column 500, and each group of steel beams 600 is pulled by a rigid rope 900 and tightened with the upper end of the central adjustment support tube 300, so that the central column 500 is subjected to a uniform horizontal moment in the circumferential direction, thereby ensuring the stability of the combination of the column and the base.

[0041] In one embodiment, a supporting body 400 is provided on the outer wall of the center adjustment support tube 300 , and the supporting body 400 is arranged along the circumferential direction of the outer wall of the center adjustment support tube 300 , one end of the supporting body 400 is connected to the outer wall of the center adjustment support tube 300 , and the other end of the supporting body 400 is connected to the prefabricated steel support 200 .

[0042] In one embodiment, four groups of supporting bodies 400 are arranged at intervals along the circumferential direction of the outer wall of the central adjustment support tube 300. One end of the supporting body 400 is connected to the outer wall of the central adjustment support tube 300, and the other end is connected to the prefabricated steel support 200, thereby ensuring that the supporting body 400 can implement stable pulling on the central adjustment support tube 300. When the central column 500 is subjected to uneven stress in the horizontal direction, the supporting body 400 can form a reliable support for the central adjustment support tube 300, thereby ensuring the stability of the entire central bearing column and avoiding the tilting problem of the central bearing column.

[0043] In one embodiment, in order to extend the central column 500 to accommodate the support of a higher steel beam 600, the upper end of the central column 500 is plug-fitted with the lower end of the plug-in column 800, and the plug-in column 800 and the steel beam 600 are arranged at the upper end of the plug-in column 800.

[0044] In one embodiment, in order to facilitate the support body 400 to pass through the prefabricated steel support 200 and enter the lower end position of the prefabricated steel support 200, a passing gap 210 is arranged between adjacent prefabricated steel supports 200, and the adjustment mechanism includes an adjustment arc surface 220 arranged on the lower plate surface of the prefabricated steel support 200, and the adjustment arc surface 220 includes a first plane 221 and a second plane 222, the first plane 221 is lower than the second plane 222, and there is an arc transition between the first plane 221 and the second plane 222, and a support end is arranged at one end of the support body 400, and the support end abuts against the first plane 221 or the second plane 222.

[0045] By adjusting the supporting end of the supporting body 400 to abut against the first plane 221 or the second plane 222, the center adjustable support tube 300 can be adjusted in the vertical direction, and the rigid rope 900 can be tightened to ensure a reliable connection to the steel beam 600 at the upper end of the center column 500, to ensure the stability of the connection between adjacent steel beams 600, and the supporting body 400 abuts against the first plane 221 or the second plane 222 to form a stable support for the center column 500.

[0046] In one embodiment, see Fig.12 and Fig.13The notch of the installation groove cavity 110 is a closed circular structure as a whole, and a support table is provided at the edge of the prefabricated steel support 200, and the support table cooperates with the step of the inner wall of the notch of the installation groove cavity 110. A support roller 410 is provided at one end of the support body 400, and the support roller 410 is horizontal and arranged along the radial direction of the center adjustment support tube 300. The roller body of the support roller 410 abuts against the first plane 221 or the second plane 222, and a support spring 310 is sleeved on the center adjustment support tube 300, and the upper and lower ends of the support spring 310 respectively abut against the outer wall of the center adjustment support tube 300 and the bottom of the installation groove cavity 110.

[0047] In one embodiment, when the central adjustable support tube 300 is actually constructed, after the central column 500 and the plug-in column 800 are hoisted, the steel beam 600 and the upper end of the plug-in column 800 are installed by the hoisting equipment, and the intermediate connector 700 is installed between the adjacent steel beams 600 to achieve the connection between the adjacent steel beams 600, and then one end of the rigid rope 900 is connected to the intermediate connector 700, and the central adjustable support tube 300 is driven downward by the assembly adjustment device to implement the support spring 310 is compressed, and the support roller 410 passes through the through gap 210 between the prefabricated steel supports 200, and the center adjustment support tube 300 is rotated, so that the support roller 410 abuts against the second plane 222, and the support roller 410 rotates from the second plane 222 to the first plane 221, thereby tightening the rigid rope 900, and loosening the assembly adjustment device, so that the center adjustment support tube 300 and the prefabricated steel supports 200 can form a reliable whole, ensuring a reliable connection between the steel beams 600.

[0048] In one embodiment, the support roller 410 is rotatably arranged on a roller frame, and the roller frame is installed on a support roller 420. The support roller 420 is sleeved on the outside of the center adjustment support tube 300, and the outer wall of the support roller 420 abuts against the inner wall of the prefabricated steel support 200. A connecting slide rod 430 is vertically slidably arranged on the roller frame, and the upper end of the connecting slide rod 430 is hinged to one end of the connecting arm 440 through a connecting seat. A connecting spring 431 is sleeved on the connecting slide rod 430, and the upper and lower ends of the connecting spring 431 abut against the connecting seat and the roller frame respectively, and the other end of the connecting arm 440 is hinged to the connecting slider 450, and the hinge axes at both ends of the connecting arm 440 are horizontal and perpendicular to the axial direction of the support roller 420, and the connecting slider 450 is slidably arranged in the groove of the outer wall of the center adjustment support tube 300, and the groove is arranged along the length direction of the center adjustment support tube 300.

[0049] In one embodiment, the roller frame is installed on the support roller 420. When the center adjustment support tube 300 moves down to the lowest point, the support roller 420 can support the outer wall of the center adjustment support tube 300, so that the center adjustment support tube 300 and the prefabricated steel support 200 form a whole, ensuring the stability of the support for the center adjustment support tube 300.

[0050] In one embodiment, the slot is arranged along the length direction of the central adjustment support tube 300, and the support body 400 can be hoisted into the slot by hoisting equipment, so that the connecting slider 450 is stuck in the slot, which facilitates the rapid installation of the support body 400 and the central adjustment support tube 300.

[0051] In one embodiment, a support base 510 is disposed at the lower end of the central column 500 , and when the support roller 410 abuts against the first plane 221 , the roller body of the support roller 410 abuts against the upper plate surface of the support base 510 .

[0052] When the center adjustment support tube 300 is driven downward by the assembly adjustment device, and the center adjustment support tube 300 is rotated, the support roller 410 is abutted against the second plane 222, and the support roller 410 is rotated from the second plane 222 to the first plane 221. At this time, the roller body of the support roller 410 is abutted against the upper plate surface of the support base 510, thereby fixing the lower end of the center column 500, so that the lower end of the center column 500 and the prefabricated steel support 200 form a stable whole, ensuring stable support for the center column 500.

[0053] In one embodiment, in order to achieve the connection between the central column 500 and the plug-in column 800 and ensure the stability of the central column 500, the central column 500 includes two groups of channel steel plates, the two groups of channel steel plates are vertically arranged with the bottom of the groove close together, two groups of plug-in plates 810 are vertically arranged on the plug-in column 800, the inner side surfaces of the two groups of channel steel plates are provided with a first inclined surface, and the two groups of plug-in plates 810 are provided with a second inclined surface. The two groups of plug-in plates 810 are respectively inserted into the grooves of the two groups of channel steel plates and the first inclined surface is abutted against the second inclined surface. The periphery of the two groups of channel steel plates is provided with a sleeve, and the lower end pipe opening of the plug-in column 800 is inserted into the upper end pipe opening of the sleeve.

[0054] In one embodiment, the center column 500 includes a sleeve, and two groups of plug-in plates 810 are arranged in the sleeve. The groove bottom plates of the two groups of plug-in plates 810 fit together, thereby forming a stable support for pushing the sleeve to ensure that the sleeve has great anti-bending performance, and the upper end of the sleeve is plugged into the lower end of the plug-in column 800 as a whole, thereby ensuring that when the center column 500 is extended, the center column 500 has excellent anti-bending performance. The length of the central adjustment support tube 300 can be kept consistent with the length of the center column 500, and can form a stable support for the stroke of the center column 500.

[0055] In one embodiment, the steel beam 600 is fixed with two groups in the upper and lower directions, and the intermediate connector 700 includes a plug connector 710 arranged at one end of the steel beam 600, and the plug connector 710 is horizontal and inserted in the groove cavity adjacent to the steel beam 600. One end of the steel beam 600 is also provided with a plug-in beam 720, and multiple groups of support rollers 721 are arranged on the plug-in beam 720 at intervals. The multiple groups of support rollers 721 are clamped in the groove cavity adjacent to one end of the steel beam 600, and one end of the steel beam 600 is also provided with a guide slide rod 7 30. The guide slide bar 730 is horizontal and arranged in parallel with the steel beam 600. One end of the guide slide bar 730 forms a sliding fit with one end of the adjacent steel beam 600. A guide spring 731 is sleeved on the guide slide bar 730. The two ends of the guide spring 731 respectively abut against the end faces of two adjacent steel beams 600. One end of the rigid rope 900 is connected to one end of the plug-in beam 720. The rigid rope 900 extends along the steel beam 600 to the plug-in column 800 and is connected to the upper end of the central adjustment support tube 300.

[0056] In one embodiment, adjacent steel beams 600 are slidably matched through a plug-in connector 710, and through the plug-in beams 720 and multiple groups of support rollers 721, adjacent steel beams 600 can be in a sliding matching state, so that adjacent steel beams 600 are in a retractable state, and through the rigid rope 900, the rigid rope 900 extends along the steel beam 600 to the plug-in column 800 and is connected to the upper end of the central adjustment support tube 300. When the central adjustment support tube 300 is driven downward by the assembly adjustment device, the central adjustment support tube 300 is rotated, so that the support roller 410 abuts against the second plane 222, and the support roller 410 rotates from the second plane 222 to the first plane 221, so as to tighten the rigid rope 900.

[0057] In one embodiment, in order to realize the connection between the steel beam 600 and the upper end of the plug-in column 800, the upper end of the plug-in column 800 is provided with a receiving groove 820 for clamping one end of the steel beam 600, and a first connecting plate 821 is provided on one side of the connecting groove 820. The first connecting plate 821 is provided with a groove for the rigid rope 900 to pass through. A second connecting plate 610 is provided at one end of the steel beam 600, and an adjusting screw 620 is provided between the second connecting plate 610 and the first connecting plate 821.

[0058] In one embodiment, by rotating the adjusting screw 620 , the second connecting plate 610 at one end of the steel beam 600 can be brought closer to the first connecting plate 821 , thereby ensuring a reliable connection between the steel beam 600 and the upper end of the plug-in column 800 .

[0059] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A central bearing column of an assembled steel structure, characterized in that: include A concrete base (100), wherein a mounting groove cavity (110) is provided on the concrete base (100); A plurality of prefabricated steel supports (200) are disposed in the installation slot cavity (110), the prefabricated steel supports (200) are fastened to the inner wall of the installation slot cavity (110), and the plurality of prefabricated steel supports (200) are enclosed to form a plug-in cavity; A center adjustment support tube (300) is arranged in the plug-in chamber, and the outer wall of the center adjustment support tube (300) is abutted against and combined with the plug-in chamber; A central column (500) is arranged at the central position of the central support tube (300), and the lower end of the central column is connected to the bottom of the installation groove cavity (110); A steel beam (600) is horizontally arranged at the upper end of the central column (500), and a plurality of groups of the steel beams (600) are arranged at intervals along the circumferential direction of the central column (500); The intermediate connecting body (700) is arranged at the connecting end position of the adjacent steel beams (600), and a rigid rope (900) is extended on the intermediate connecting body (700), one end of the rigid rope (900) is connected to the upper end of the central adjustment support tube (300), and the adjustment mechanism adjusts the vertical lifting of the central adjustment support tube (300) and implements the tightening of the rigid rope (900).

2. The central bearing column of the assembled steel structure according to claim 1, characterized in that: The outer wall of the center-adjustable support tube (300) is provided with a support body (400), and the support body (400) is arranged along the circumferential direction of the outer wall of the center-adjustable support tube (300), one end of the support body (400) is connected to the outer wall of the center-adjustable support tube (300), and the other end of the support body (400) is connected to the prefabricated steel support (200).

3. The central bearing column of the assembled steel structure according to claim 1, characterized in that: The upper end of the central column (500) is plug-fitted with the lower end of the plug-in column (800), and the plug-in column (800) and the steel beam (600) are arranged at the upper end of the plug-in column (800).

4. The central bearing column of the assembled steel structure according to claim 2, characterized in that: The adjacent prefabricated steel supports (200) are provided with a passing gap (210); the adjusting mechanism comprises an adjusting arc surface (220) arranged on the lower plate surface of the prefabricated steel supports (200); the adjusting arc surface (220) comprises a first plane (221) and a second plane (222); the first plane (221) is lower than the second plane (222); a circular arc transition is formed between the first plane (221) and the second plane (222); a supporting end is provided at one end of the support body (400), and the supporting end abuts against the first plane (221) or the second plane (222).

5. The central bearing column of the assembled steel structure according to claim 4 is characterized in that: The notch of the installation groove cavity (110) is generally in a closed circular structure, and a support table is provided on the edge of the prefabricated steel support (200), and the support table cooperates with the step of the inner wall of the notch of the installation groove cavity (110). A support roller (410) is provided at one end of the support body (400), and the support roller (410) is horizontal and arranged along the radial direction of the center adjustment support tube (300). The roller body of the support roller (410) abuts against the first plane (221) or the second plane (222), and a support spring (310) is sleeved on the center adjustment support tube (300), and the upper and lower ends of the support spring (310) respectively abut against the outer wall of the center adjustment support tube (300) and the bottom of the groove of the installation groove cavity (110).

6. The central bearing column of the assembled steel structure according to claim 5, characterized in that: The support roller (410) is rotatably arranged on a roller frame, and the roller frame is installed on a support roller (420). The support roller (420) is sleeved outside the central adjustment support tube (300), and the outer wall of the support roller (420) is in contact with the inner wall of the prefabricated steel support (200). A connecting slide rod (430) is vertically slidably arranged on the roller frame, and the upper end of the connecting slide rod (430) is hinged to one end of the connecting arm (440) through a connecting seat. The connecting slide rod (430) is sleeved with A connecting spring (431), the upper and lower ends of the connecting spring (431) are respectively against the connecting seat and the roller frame, the other end of the connecting arm (440) is hinged to the connecting slider (450), the hinge axes at both ends of the connecting arm (440) are horizontal and perpendicular to the axial direction of the supporting roller (420), and the connecting slider (450) is slidably arranged in a groove on the outer wall of the center adjustment support tube (300), and the groove is arranged along the length direction of the center adjustment support tube (300).

7. The central bearing column of the assembled steel structure according to claim 6, characterized in that: A support base (510) is provided at the lower end of the central column (500), and when the support roller (410) abuts against the first plane (221), the roller body of the support roller (410) abuts against the upper plate surface of the support base (510).

8. The central bearing column of the assembled steel structure according to claim 7, characterized in that: The central column (500) comprises two groups of channel steel plates, the two groups of channel steel plates are vertically arranged with the bottom of the grooves close together, two groups of plug-in plates (810) are vertically arranged on the plug-in column (800), the inner side surfaces of the two groups of channel steel plates are provided with a first inclined surface, and the two groups of plug-in plates (810) are provided with a second inclined surface, the two groups of plug-in plates (810) are respectively inserted into the grooves of the two groups of channel steel plates and the first inclined surface is abutted against the second inclined surface, the outer periphery of the two groups of channel steel plates is provided with a sleeve, and the lower end pipe opening of the plug-in column (800) is inserted into the upper end pipe opening of the sleeve.

9. The central bearing column of the assembled steel structure according to claim 3, characterized in that: Two groups of the steel beams (600) are fixed in the upper and lower directions. The intermediate connector (700) includes a plug connector (710) arranged at one end of the steel beam (600). The plug connector (710) is horizontal and inserted into the groove cavity of the adjacent steel beam (600). A plug connector (720) is also arranged at one end of the steel beam (600). Multiple groups of support rollers (721) are arranged at intervals on the plug connector (720). The multiple groups of support rollers (721) are clamped in the groove cavity of one end of the adjacent steel beam (600). A guide slide bar (730) is also arranged at one end of the steel beam (600). The guide slide bar (730) is horizontal and arranged parallel to the steel beam (600), one end of the guide slide bar (730) forms a sliding fit with one end of an adjacent steel beam (600), a guide spring (731) is sleeved on the guide slide bar (730), and the two ends of the guide spring (731) are respectively abutted against the end faces of two adjacent steel beams (600), one end of the rigid rope (900) is connected to one end of the plug-in beam (720), and the rigid rope (900) extends along the steel beam (600) into the plug-in column (800) and is connected to the upper end of the central adjustment support tube (300).

10. The central bearing column of the assembled steel structure according to claim 9, characterized in that: The upper end of the plug-in column (800) is provided with a receiving groove (820) for clamping one end of the steel beam (600), and a first connecting plate (821) is provided on one side of the connecting groove (820), and a groove for the rigid rope (900) to pass through is provided on the first connecting plate (821), and a second connecting plate (610) is provided at one end of the steel beam (600), and an adjusting screw (620) is provided between the second connecting plate (610) and the first connecting plate (821).

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