Horizontal telescopic global rotating joint embedded in main body structure

Abstract

The invention discloses a horizontal telescopic global rotating joint embedded in a main body structure, and relates to the technical field of steel structure joints, the horizontal telescopic global rotating joint comprises a steel structure rod piece, one end of the steel structure rod piece is used for connecting a truss, and the free end horizontally extends towards the main body structure on one side; a groove is formed in one side of the main body structure, and a steel sleeve is arranged on the inner side wall of the groove; solid hemispheres which are concentrically arranged are arranged on the circumferential side wall of the free end of the steel structure rod piece, and the free end of the steel structure rod piece slides deep into the steel sleeve and can horizontally slide in the length direction of the steel sleeve; the maximum movable distance between the truss and the main body structure is smaller than the maximum horizontal stroke of the solid hemispheres in the steel sleeve. By the adoption of the scheme, expansion and contraction and global rotation of the nodes can be effectively achieved, and support is provided for a structure for achieving high-safety storage.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure nodes, and in particular to a horizontally telescopic global rotation node embedded in a main structure. Background Art

[0002] With the development of my country's economy, steel structures have been increasingly used in national construction. Many large-scale and complex steel structure projects have been built across the country, with great progress in both quantity and quality. The design, manufacturing and installation technologies have reached a high level.

[0003] The node is the key position connecting the various components of the structure, ensuring the transmission of the structural force flow. The stability and firmness of the node determine the safety of the entire structure. With the increasing research and construction of complex structures, steel structure nodes are not limited to traditional hinged nodes and fixed nodes. More node forms are required by actual projects. For example, in order to better control the transmission of force flow in the structure, a retractable and rotatable node form is needed.

[0004] The existing pin node technology is relatively mature and easy to install and disassemble, but the applicable scenarios are relatively limited, and usually only large rotations in one direction can be achieved. Existing spherical bearings can be used for rotational movements with large angles or large deviations, and can withstand large loads at the same time, but the life of spherical bearings is generally shorter than that of other types of bearings. The main reason is the limitations of their structural design. In addition, they often need to withstand complex loads during use, especially when used in wind tunnels. Due to the uncertainty of the direction of wind loads, spherical bearings will withstand loads in multiple directions, making them more prone to fatigue damage. Their application is particularly limited in projects with high fatigue requirements. In addition, the cost of spherical bearings is usually high. Summary of the invention

[0005] The present invention aims to solve the deficiencies of the prior art and to provide a horizontally retractable global rotation node embedded in the main structure. By adopting this solution, the node's telescopic and global rotation can be effectively realized, providing support for achieving a structure with a high safety reserve.

[0006] Specifically, a horizontally telescopic global rotation node embedded in a main structure includes: A steel structure rod, wherein one end of the steel structure rod is a fixed end, and the free end is a free end, wherein the fixed end is used to connect the truss, and the free end extends along the length direction of the steel structure rod to a groove provided in the main structure of the free end; A steel sleeve is provided on the inner side wall of the groove; Solid hemispheres are provided on the circumferential side walls of the free ends, and several of the solid hemispheres are arranged concentrically; the free end of the steel structure rod slides deeply into the steel sleeve and can slide horizontally along the length direction of the steel sleeve; The solid hemispheres in the circumferential direction of the free end of the steel structure rod are all abutted against the circumferential side walls of their respective corresponding steel sleeves through their vertices; When the groove is a circular or regular polygon groove, the radii of several of the solid hemispheres are the same; When the groove is a rectangular groove, an arc groove adapted to the corresponding solid hemisphere is provided on the narrow side of the groove; The maximum movable distance between the truss and the main structure is less than the maximum horizontal travel of several of the solid hemispheres in the steel sleeve.

[0007] Compared with the prior art, the service life of spherical plain bearings is generally shorter than that of other types of bearings. The main reason lies in the limitations of their structural design. Moreover, during use, they often need to bear complex loads. Especially when applied in wind tunnels, due to the uncertainty of the direction of wind loads, spherical plain bearings will bear loads in multiple directions, so they are more likely to experience fatigue failure. Especially in projects with high requirements for fatigue, their application is restricted. The present invention provides a horizontally telescopic full-range rotating joint embedded in the main structure. Adopting this solution, especially when applied to the wind tunnel scenario with large loads embedded in the main structure, it can effectively realize the telescoping and full-range rotation of the joint, providing support for a structure with a high safety reserve. In a specific solution, the truss and the main structure are arranged on the horizontal sides respectively. The truss is provided with horizontally arranged steel structural members. The cross-section of the steel structural members can be in the shape of a rectangle or a cylinder, etc. Solid hemispheres concentrically arranged are provided on the circumferential side walls at the free ends of the steel structural members; a groove is formed on the side wall of the main structure, and a steel sleeve with a matching size is arranged on the inner side wall of the groove. In this way, the free ends of the steel structural members can abut against the circumferential side wall of the steel sleeve through a plurality of solid hemispheres, realizing sliding in the length direction of the steel sleeve and completing the telescopic movement in the horizontal direction; the centers of the plurality of solid hemispheres are the same. When the groove is a circular or regular polygon groove, preferably a square groove, and the radii of the plurality of solid hemispheres are the same, 360° full-range rotation can be realized; when the groove is a rectangular groove, an arc groove needs to be arranged on the narrow side of the groove, so that during the concentric rotation process, the side walls can always be in contact, enabling the solid hemispheres to rotate and slide on the arc groove. Although the rectangular groove cannot achieve 360° rotation, it can also achieve full-range rotation in the rotation and deflection directions. Therefore, this solution can realize the rotation and deflection of the steel structural members. The contact between the solid hemispheres and the steel sleeve is a line contact. During the process of the structure bearing reciprocating loads, whether in the case of lateral tension or lateral compression, it can not only realize the horizontal displacement between the hemispheres and the steel sleeve, but also realize the full-range rotation at the position of the solid hemispheres, so as to adapt to loads in multiple directions. During the actual load-bearing process, the main structure remains stationary, and the telescopic rotation is realized by the displacement of the truss on one side and a plurality of solid hemispheres. In addition, the maximum movable distance between the truss and the main structure, that is, the maximum displacement distance between the truss and the main structure in the horizontal direction, is less than the maximum horizontal stroke of the plurality of solid hemispheres in the steel sleeve, so as to prevent the solid hemispheres from sliding out of the steel sleeve; the clearance of the free end of the steel structural member can be determined according to the extreme displacement of the structure in the telescopic direction of the solid hemispheres and the steel sleeve.

[0008] To achieve a sliding connection between the solid hemisphere and the steel sleeve, a polytetrafluoroethylene plate is provided on the inner side of the steel sleeve, and the vertices of several said solid hemispheres are all in sliding connection with the polytetrafluoroethylene plate. In this solution, the polytetrafluoroethylene plate has high mechanical toughness and a low coefficient of friction to provide a relatively smooth sliding surface, thus achieving the sliding connection.

[0009] As an optimal way to achieve global rotation, when the groove is a circular or regular polygon groove, several said solid hemispheres combine to form a sphere; the free end of the steel structure rod is inserted into the sphere. In this solution, the groove can be set as a square groove, and several solid hemispheres are directly set as an entire sphere, so that the free end of the steel structure rod is inserted into the sphere; the diameter of the sphere is adapted to the size of the groove. In this way, the sphere can achieve a 360° global rotation within the groove.

[0010] As a detachable connection method, the free end of the steel structure rod is cylindrical, a threaded hole is opened axially on one side of the sphere, and the steel structure rod is threadedly connected to the sphere through the threaded hole. Among them, the free end of the steel structure rod is cylindrical and has an external thread, and the steel structure rod can be threadedly connected to the sphere through the external thread.

[0011] When the main structure is a steel reinforced concrete column, to make clever use of the steel section, a steel sleeve is formed in combination with the steel section, and it is set as: the groove is opened at the web position of the steel section; steel plates are welded between the same sides of the two flange plates of the steel section, and the two steel plates and the two flange plates enclose to form the steel sleeve. In this solution, when there is a steel section in the concrete column, the steel sleeve and the steel section can be combined with each other. The two flange plates of the steel section are used as the two sides of the steel sleeve, and steel plates are welded between the same sides of the two flange plates. The two steel plates are used as the upper and lower sides of the steel sleeve, so as to enclose the steel sleeve through the two steel plates and the two flange plates, while improving the connection strength of the steel sleeve and achieving a certain effect of saving materials.

[0012] Since the load of this structure is large, to improve the stability of movement at the node, the groove is a rectangular groove, a base is slidably connected to the bottom of the rectangular groove, and the solid hemisphere at the bottom side of the free end of the steel structure rod is fixed on the base. In this solution, since the web of the steel section is rectangular, it may not be possible to make the enclosed steel sleeve square. Therefore, in the application scenario of a steel reinforced concrete column, the steel sleeve is generally rectangular; a base is slidably provided at the bottom of the steel sleeve, and the solid hemisphere at the bottom side of the free end of the steel structure rod is arranged on the base to achieve horizontal sliding and rotation through the base; in this way, through the surface contact between the base and the bottom side of the steel sleeve, it can adapt to the connection node with a large load and improve the stability during movement.

[0013] In order to avoid the misalignment of the solid hemisphere and the base in the horizontal direction, a spherical groove matching the size of the solid hemisphere is opened on the base, and the solid hemisphere on the bottom side of the free end of the steel structure rod is placed in the spherical groove. In this solution, a spherical groove is provided on the base, and the solid hemisphere is placed in the spherical groove, which can ensure the synchronous movement of the solid hemisphere and the base in the horizontal direction, and can ensure that the solid hemisphere can rotate relative to the base.

[0014] In order to improve the connection rigidity of the steel sleeve, a plurality of external stiffening ribs are reinforced on the outer side wall of the steel sleeve, and the plurality of external stiffening ribs extend into the interior of the main structure.

[0015] In order to improve the connection rigidity of the steel sleeve, a plurality of the external stiffening ribs are arranged in the length direction of the steel sleeve and towards the circumferential side wall of the steel sleeve.

[0016] In order to adapt to the narrower rectangular groove, the outer side walls of the solid hemispheres on both sides and the bottom of the steel structure rod are connected and have the same radius. In this solution, the bottom of the steel structure and the solid hemispheres on both sides are combined to form a sphere to minimize the diameter of the sphere as much as possible to adapt to the narrower rectangular groove, and save materials while ensuring the rotation of the node. For example, the side wall of the sphere is located at the bottom vertex of the steel structure rod; and the top of the steel structure rod has a solid hemisphere with the same center, and the top of the rectangular groove has an arc groove that matches the solid hemisphere to ensure the fit of the side wall during rotation. Although 360° rotation cannot be achieved, full-range rotation in the rotation and deflection directions can be achieved.

[0017] Compared with the prior art, the present invention has the following advantages and beneficial effects: The present invention provides a horizontally telescopic global rotation node embedded in the main structure. The present invention adopts this solution, especially when applied to a wind tunnel scenario where a large load is embedded in the main structure. The node can be effectively telescoped and rotated globally, and has good anti-fatigue properties, providing support for achieving a structure with a high safety reserve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. For those of ordinary skill in the art, other relevant drawings can be obtained based on these drawings without creative work. In the drawings: Figure 1 A schematic diagram of the structure of a horizontally scalable global rotation node provided by the present invention; Figure 2Cross-sectional view of a horizontal telescopic all-round rotating joint using a sphere provided by the present invention; Figure 3 Schematic structural diagram of a horizontal telescopic all-round rotating joint using a sphere provided by the present invention; Figure 4 Schematic structural diagram of another horizontal telescopic all-round rotating joint provided by the present invention; Figure 5 Top view of another horizontal telescopic all-round rotating joint provided by the present invention; Figure 6 Cross-sectional view of another horizontal telescopic all-round rotating joint provided by the present invention; Figure 7 Schematic structural diagram of a solid hemisphere arranged on the steel structure rod; Marks in the attached drawings and corresponding component names: 1 - Solid hemisphere, 2 - Steel sleeve, 3 - Steel structure rod, 4 - Polytetrafluoroethylene plate, 5 - Main structure, 6 - External stiffening rib, 7 - Base, 8 - Section steel. Specific implementation mode

[0019] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with embodiments and drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and do not limit the present invention.

[0020] Embodiment 1: As Figures 1 - 7 shown, this embodiment provides a horizontal telescopic all-round rotating joint embedded in the main structure, including: a steel structure rod 3, one end of the steel structure rod 3 is a fixed end, and the free end is a free end. The fixed end is used to connect the truss, and the free end extends along the length direction of the steel structure rod into a groove opened in the main structure 5 at the free end; A steel sleeve 2 is provided on the inner side wall of the groove; Solid hemispheres 1 are provided on the circumferential side walls of the free end (as Figure 7 shown), and several solid hemispheres 1 are arranged concentrically; the free end of the steel structure rod 3 slides deeply into the steel sleeve 2 and can slide horizontally along the length direction of the steel sleeve 2; The solid hemispheres 1 in the circumferential direction of the free end of the steel structure rod 3 all abut against the circumferential side walls of their respective corresponding steel sleeves 2 through their vertices; When the groove is a circular or regular polygon groove, the radii of several solid hemispheres 1 are the same; When the groove is a rectangular groove, an arc groove adapted to the corresponding solid hemisphere 1 is provided on the narrow side of the groove; The maximum moving distance between the truss and the main structure 5 is less than the maximum horizontal travel distance of several of the solid hemispheres 1 within the steel sleeve 2.

[0021] Compared with the prior art, the service life of a spherical plain bearing is generally shorter than that of other types of bearings. The main reason lies in the limitations of its structural design. Moreover, during use, it often needs to bear complex loads. Especially when applied in a wind tunnel, due to the uncertainty of the direction of the wind load, the spherical plain bearing will bear loads in multiple directions, so it is more likely to experience fatigue failure. Especially in projects with high requirements for fatigue, its application is restricted (for example, if the direction of the force in the wind tunnel is uncertain, the spherical plain bearing is more likely to experience fatigue failure and is not suitable for application in wind tunnel projects, and other anti-fatigue joints need to be explored). The present invention provides a horizontally telescopic and globally rotatable joint embedded in the main structure 5. With this solution, especially when applied to a wind tunnel scenario with large loads embedded in the main structure 5, it can effectively achieve the telescoping and global rotation of the joint, providing support for a structure with a high safety margin.

[0022] Exemplarily, the truss and the main structure 5 are respectively arranged on the two horizontal sides. There are horizontal steel structure members 3 on the truss. The cross-section of the steel structure member 3 can be in the shape of a rectangle, a cylinder, etc. Solid hemispheres 1 are arranged concentrically on the circumferential side walls at the free ends of the steel structure members 3; a groove is formed on the side wall of the main structure 5, and a steel sleeve 2 with a matching size is arranged on the inner side wall of the groove. In this way, the free ends of the steel structure members 3 can abut against the circumferential side wall of the steel sleeve 2 through a plurality of solid hemispheres 1, realizing sliding in the length direction of the steel sleeve 2 and completing the reciprocating movement of the steel structure members 3 in the horizontal direction; the centers of the plurality of solid hemispheres 1 are the same. When the groove is a circular or regular polygon groove, preferably a square groove, and the radii of the plurality of solid hemispheres 1 are the same, 360° full-range rotation can be achieved; when the groove is a rectangular groove, an arc groove needs to be arranged on the narrow side of the groove, so that during the concentric rotation process, the side walls can always be attached, enabling the solid hemispheres 1 to rotate and slide on the arc groove. Although the rectangular groove cannot achieve 360° rotation, it can also achieve full-range rotation in the rotation and deflection directions. Therefore, this solution can achieve the rotation and deflection of the steel structure member 3. There is a line contact between the solid hemisphere 1 and the steel sleeve 2. During the process of the structure bearing reciprocating loads, whether it is under lateral tension or lateral compression, not only can the horizontal displacement between the hemisphere and the steel sleeve 2 be achieved, but also the full-range rotation at the position of the solid hemisphere 1 can be achieved, so as to adapt to loads in multiple directions. During the actual load-bearing process, the main structure 5 remains stationary, and the telescopic rotation is achieved by the displacement of the truss on one side and a plurality of solid hemispheres 1. In addition, the maximum movable distance between the truss and the main structure 5, that is, the maximum displacement distance between the truss and the main structure 5 in the horizontal direction, is less than the maximum horizontal stroke of the plurality of solid hemispheres 1 in the steel sleeve 2, so as to prevent the solid hemispheres 1 from sliding out of the steel sleeve 2; the gap at the free end of the steel structure member 3 can be determined according to the ultimate displacement of the structure in the telescopic direction of the solid hemisphere 1 and the steel sleeve 2.

[0023] To achieve the sliding connection between the solid hemisphere 1 and the steel sleeve 2, a polytetrafluoroethylene plate 4 is arranged on the inner side surface of the steel sleeve 2, and the vertices of the plurality of solid hemispheres 1 are slidably connected to the polytetrafluoroethylene plate 4. In this solution, the polytetrafluoroethylene plate 4 has high mechanical toughness and a low friction coefficient to provide a relatively smooth sliding surface, thereby achieving the sliding connection.

[0024] Embodiment 2: This Embodiment 2 is further limited on the basis of Embodiment 1. As Figures 2 - 3 shown, a specific implementation manner of a square groove is provided.

[0025] As an optimal way to achieve global rotation, when the groove is a circular or regular polygonal groove, several of the solid hemispheres 1 are combined to form a sphere; the free end of the steel structure rod 3 is inserted into the sphere. In this solution, the groove can be set as a square groove, and several solid hemispheres 1 can be directly set as an entire sphere, so that the free end of the steel structure rod 3 is inserted into the sphere; the diameter of the sphere is adapted to the size of the groove. In this way, the sphere can achieve 360° global rotation within the groove.

[0026] As a detachable connection method, the free end of the steel structure rod 3 is cylindrical, a threaded hole is axially opened on one side of the sphere, and the steel structure rod 3 is threadedly connected to the sphere through the threaded hole. of the free end.

[0027] Embodiment 3: This Embodiment 3 is further limited on the basis of Embodiment 1, as Figures 4 - 6 shown, a specific implementation manner of a rectangular groove is provided.

[0028] When the main structure 5 is a steel reinforced concrete column with a steel section 8 inside, in order to make clever use of the steel section 8, the groove is opened at the web position of the steel section 8; steel plates are welded between the same sides of the two flanges of the steel section 8, and the two steel plates and the two flanges enclose to form the steel sleeve 2. Exemplarily, the steel sleeve 2 and the steel section 8 are combined with each other, with the two flanges of the steel section 8 as the two sides of the steel sleeve 2, and steel plates are welded between the same sides of the two flanges, with the two steel plates as the upper and lower sides of the steel sleeve 2, so as to enclose the steel sleeve 2 through the two steel plates and the two flanges, while improving the connection strength of the steel sleeve 2, it also achieves a certain effect of saving materials.

[0029] Since the load of this structure is large, in order to improve the stability of movement at the joint, the groove is a rectangular groove, and a base 7 is slidably connected to the bottom of the rectangular groove, and the solid hemisphere 1 at the bottom side of the free end of the steel structure rod 3 is installed on the base 7. In this solution, since the web of the steel section 8 is rectangular, it may not be possible to make the enclosed steel sleeve 2 square. Therefore, in the application scenario of the steel reinforced concrete column, the steel sleeve 2 is generally rectangular; a base 7 is slidably provided at the bottom of the steel sleeve 2, and the solid hemisphere 1 at the bottom side of the free end of the steel structure rod 3 is arranged on the base 7 to achieve horizontal sliding and rotation through the base 7; in this way, through the surface contact between the base 7 and the bottom side of the steel sleeve 2, it is adapted to the connection joint with a large load and improves the stability during movement.

[0030] In order to avoid the misalignment of the solid hemispherical body 1 and the base 7 in the horizontal direction, a spherical groove matching the size of the solid hemispherical body 1 is opened on the base 7, and the solid hemispherical body 1 at the bottom side of the free end of the steel structure rod 3 is placed in the spherical groove. In this solution, the spherical groove is provided on the base 7, and the solid hemispherical body 1 is placed in the spherical groove, which can ensure the synchronous movement of the solid hemispherical body 1 and the base 7 in the horizontal direction, and can ensure that the solid hemispherical body 1 can rotate relative to the base 7.

[0031] In order to improve the connection rigidity of the steel sleeve 2 , a plurality of external stiffening ribs 6 are reinforced on the outer side wall of the steel sleeve 2 , and the plurality of external stiffening ribs 6 extend into the interior of the main structure 5 .

[0032] In order to improve the connection rigidity of the steel sleeve 2 , a plurality of the external stiffening ribs 6 are arranged in the length direction of the steel sleeve 2 and in the circumferential side wall of the steel sleeve 2 .

[0033] In order to adapt to the narrower rectangular groove, the outer side walls of the solid hemispheres 1 on both sides and the bottom of the steel structure rod 3 are connected and have the same radius. In this solution, the bottom of the steel structure and the solid hemispheres 1 on both sides are combined to form a sphere to minimize the diameter of the sphere as much as possible, adapt to the narrower rectangular groove, and save materials while ensuring the rotation of the node. For example, the side wall of the sphere is located at the bottom vertex of the steel structure rod 3; and the top of the steel structure rod 3 is provided with a concentric solid hemisphere 1, and the top of the rectangular groove is provided with an arc groove adapted to the solid hemisphere 1 to ensure the fit of the side wall during rotation. Although 360° rotation cannot be achieved, full-range rotation in the direction of rotation and deflection can be achieved.

[0034] Working principle: When the structure moves to the right, the internal sphere moves to the right accordingly, and the gap between the steel component and the concrete decreases, but does not collide. When the structure moves to the left, the internal sphere slides to the left, and the gap between the steel component and the concrete increases, but does not separate. According to different structural forms, the specific lateral gap of the sphere is set to ensure the safety of the structure while achieving axial retractability. When the structure rotates, the sphere rotates in the steel cylinder to realize the rotation of the structure.

[0035] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A horizontally telescopic and globally rotatable node embedded in a main structure, characterized in that, Comprising: A steel structure member (3), one end of the steel structure member (3) is a fixed end, and the free end is a free end. The fixed end is used to connect to the truss, and the free end extends along the length direction of the steel structure member into a groove opened in the main structure (5) at the free end; A steel sleeve (2) is provided on the inner side wall of the groove; Solid hemispheres (1) are provided on the circumferential side walls of the free end. Several of the solid hemispheres (1) are arranged concentrically; the free end of the steel structure member (3) slides deeply into the steel sleeve (2) and can slide horizontally along the length direction of the steel sleeve (2); The solid hemispheres (1) in the circumferential direction of the free end of the steel structure member (3) all abut against the circumferential side walls of their respective corresponding steel sleeves (2) through their vertices; When the groove is a circular or regular polygon groove, the radii of several of the solid hemispheres (1) are the same; When the groove is a rectangular groove, an arc groove adapted to the corresponding solid hemisphere (1) is provided on the narrow side of the groove; The maximum movable distance between the truss and the main structure (5) is less than the maximum horizontal travel of several of the solid hemispheres (1) in the steel sleeve (2).

2. The horizontal telescopic and globally rotatable node embedded in the main structure according to claim 1, wherein A polytetrafluoroethylene plate (4) is provided on the inner side surface of the steel sleeve (2), and the vertices of several of the solid hemispheres (1) are all slidably connected to the polytetrafluoroethylene plate (4).

3. A horizontally telescopic and globally rotatable node embedded in a main structure according to claim 1, characterized in that, When the groove is a circular or regular polygon groove, several of the solid hemispheres (1) combine to form a sphere; The free end of the steel structure member (3) is inserted into the sphere.

4. The horizontally telescopic and globally rotatable node embedded in the main structure according to claim 3, wherein The free end of the steel structure member (3) is cylindrical, a threaded hole is opened axially on one side of the sphere, and the steel structure member (3) is threadedly connected to the sphere through the threaded hole.

5. A horizontally telescopic and globally rotatable node embedded in a main structure according to claim 1, characterized in that, When the main structure (5) is a steel reinforced concrete column, the groove is opened to the web position of the steel section (8); steel plates are welded between the same sides of the two flange plates of the steel section (8), and the two steel plates and the two flange plates enclose the steel sleeve (2).

6. The horizontally telescopic and globally rotatable node embedded in the main structure according to claim 5, characterized in that, The groove is a rectangular groove, a base (7) is slidably connected to the bottom of the rectangular groove, and the solid hemisphere (1) on the bottom side of the free end of the steel structure member (3) is fixed on the base (7).

7. The horizontally telescopic and globally rotatable node embedded in the main structure according to claim 6, wherein A spherical groove adapted to the size of the solid hemisphere (1) is opened on the base (7), and the solid hemisphere (1) on the bottom side of the free end of the steel structure member (3) is placed in the spherical groove.

8. A horizontally telescopic global rotation node embedded in a main structure according to claim 5, characterized in that, Several external stiffening ribs (6) are reinforced on the outer side wall of the steel sleeve (2), and several of the external stiffening ribs (6) all extend into the main structure (5) internally.

9. The horizontally telescopic and globally rotatable node embedded in the main structure according to claim 5, wherein Several of the external stiffening ribs (6) are arranged along the length direction of the steel sleeve (2) and are arranged towards the circumferential side wall of the steel sleeve (2).

10. A horizontally telescopic and globally rotatable node embedded in a main structure according to claim 5, characterized in that, The outer side walls of the solid hemispheres (1) on both sides and the bottom side of the steel structure member (3) are in contact and have the same radius.

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