A steel structure building connection node

Abstract

The present invention relates to the technical field of structural engineering, and specifically provides a building steel structure connection node, comprising a steel tube cylinder, a steel tube chord and a steel tube web are connected to the outer circumference of the steel tube cylinder, the other ends of the steel tube web and the steel tube chord are connected to other structures, an adjustment component is arranged inside the steel tube cylinder, the adjustment component pre-clamps the steel tube chord and the steel tube web, so that the other ends of the steel tube chord and the steel tube web are first connected to other structures, and then the stress of the steel tube chord and the steel tube web is released through the adjustment component to reduce the deformation of the steel tube chord and the steel tube web, and finally the steel tube chord and the steel tube web are welded to the steel tube cylinder to complete the connection, thereby avoiding the phenomenon that the positions of the steel tube chord and the steel tube web are offset during welding, resulting in the other ends of the steel tube chord and the steel tube web being unable to be accurately connected to other structures.

Description

Technical Field

[0001] The invention relates to the technical field of structural engineering, in particular to a building steel structure connection node. Background Art

[0002] The connection nodes in steel structure buildings refer to the parts that connect steel components (such as beams, columns, trusses, etc.) together. The connection nodes are a key part in the design and construction of steel structures, and are directly related to the safety, stability and bearing capacity of the building.

[0003] For example, the steel tube cylinder node adopts the form of a connection node in which short steel tubes are directly welded to the round steel tube chord and web members of the grid, that is, one end of multiple steel tube chords and multiple steel tube web members are welded to the side wall of the steel tube cylinder, and the other end is connected to other structures.

[0004] However, when welding is used for connection, if the positions of the steel tube chord and the steel tube web are offset during welding, the other ends of the steel tube chord and the steel tube web cannot be accurately connected to other structures. If the connection is forced, the welding strength of the steel tube chord and the steel tube web will be affected. Summary of the invention

[0005] Based on this, it is necessary to provide a building steel structure connection node to address the problem that the other ends of the current steel tube chord and steel tube web cannot be accurately connected to other structures.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A steel structure building connection node, comprising:

[0008] A steel tube cylinder, wherein two rows of first connecting holes and second connecting holes are evenly arranged on the side wall of the steel tube cylinder, a steel tube chord rod is installed in the first connecting hole, and the steel tube chord rod is perpendicular to the steel tube cylinder, and a steel tube web rod is installed in the second connecting hole, and the angle between the steel tube web rod and the steel tube cylinder is an acute angle;

[0009] An adjustment component, wherein the adjustment component can pre-clamp the steel tube chord and the steel tube web, and can adjust the positions of the steel tube chord and the steel tube web on the steel tube cylinder. After the adjustment of the adjustment component is completed, the steel tube chord and the steel tube web are welded to the steel tube cylinder.

[0010] Furthermore, the adjustment assembly includes an adjustment cylinder, a first adjustment nut and a second adjustment nut, the adjustment cylinder is spirally connected in the steel tube cylinder, and two rows of mutually parallel first adjustment holes and second adjustment holes are evenly opened on the side wall of the adjustment cylinder;

[0011] One end of the steel chord is inserted into the first adjustment hole, the first adjustment nut is screwed into the adjustment tube and abuts against the end of the steel chord inserted into the first adjustment hole, and the first adjustment nut is rotated to compress the steel chord;

[0012] One end of the steel tube web is inserted into the second adjustment hole, the second adjustment nut is screwed inside the adjustment tube and abuts against one end of the steel tube web inserted into the second adjustment hole, and the second adjustment nut is rotated to compress the steel tube web.

[0013] Furthermore, a partition is provided inside the adjusting cylinder, and two end surfaces of the partition are respectively in contact with the steel tube chord and the steel tube web.

[0014] Furthermore, a threaded annular surface is provided on the outer periphery of the bottom of the adjusting cylinder, and a threaded groove is provided on the inner periphery of the bottom of the steel pipe cylinder, and the threaded annular surface cooperates with the threaded groove.

[0015] Furthermore, a hexagonal hole is formed on one end surface of the first adjusting nut and the second adjusting nut.

[0016] Furthermore, a connecting sleeve is provided on the outer periphery of the upper end of the adjusting cylinder, and the outer periphery of the connecting sleeve is slidably abutted against the inner periphery of the steel pipe cylinder.

[0017] Furthermore, one end of the steel tube chord inserted into the first connection hole has a first cutting surface, and the first cutting surfaces of the plurality of steel tube chords are in contact with each other.

[0018] Furthermore, one end of the steel tube web member inserted into the second connection hole has a second cutting surface, and the second cutting surfaces of the plurality of steel tube web members are in contact with each other.

[0019] Furthermore, the adjustment assembly includes an adjustment cylinder, a first adjustment nut and a second adjustment nut, the adjustment cylinder is axially frictionally arranged in the steel tube cylinder, and two rows of mutually parallel first adjustment holes and second adjustment holes are evenly opened on the side wall of the adjustment cylinder;

[0020] One end of the steel chord is inserted into the first adjustment hole, the first adjustment nut is screwed into the adjustment tube and abuts against the end of the steel chord inserted into the first adjustment hole, and the first adjustment nut is rotated to compress the steel chord;

[0021] One end of the steel tube web is inserted into the second adjustment hole, the second adjustment nut is spirally sleeved inside the adjustment tube and abuts against one end of the steel tube web inserted into the second adjustment hole, and the second adjustment nut is rotated to tighten the steel tube web.

[0022] Furthermore, a first conical annular surface is provided on the outer periphery of the bottom of the adjusting cylinder, wherein the small end of the first conical annular surface faces upward and the large end faces downward;

[0023] A second conical annular surface is arranged on the inner periphery of the bottom of the steel tube cylinder, the small end of the second conical annular surface faces upward and the large end faces downward, and the second conical annular surface is in frictional contact with the first conical annular surface.

[0024] The beneficial effects of the present invention are:

[0025] The present invention pre-clamps the steel tube chord and the steel tube web by arranging an adjustment component, so that the other ends of the steel tube chord and the steel tube web are first connected to other structures, and then the stress of the steel tube chord and the steel tube web is released by the adjustment component to reduce the deformation of the steel tube chord and the steel tube web, and finally the steel tube chord and the steel tube web are welded to the steel tube cylinder to complete the connection, thus avoiding the phenomenon that the position of the steel tube chord and the steel tube web is offset during welding, resulting in the other ends of the steel tube chord and the steel tube web being unable to be accurately connected to other structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a structural connection node of a steel structure building provided by an embodiment of the present invention;

[0027] Figure 2 for Figure 1 A front view of a connection node of a steel structure building provided in an embodiment of the present invention;

[0028] Figure 3 for Figure 2 A cross-sectional view along AA of the first embodiment of the steel structure building connection node of the building;

[0029] Figure 4 for Figure 2 A cross-sectional view of a steel structure building connection node along BB provided in an embodiment;

[0030] Figure 5 for Figure 2 A cross-sectional view of a steel structure building connection node along CC provided in an embodiment;

[0031] Figure 6 A schematic diagram of the structure of a steel tube cylinder in the first embodiment of a steel structure building connection node provided by the present invention;

[0032] Figure 7 A schematic diagram of the structure of the adjustment cylinder in the first embodiment of the steel structure building connection node provided by the present invention;

[0033] Figure 8 A schematic diagram of the structure of a first adjusting nut and a second adjusting nut of a connection node of a steel structure building provided in one embodiment of the present invention;

[0034] Fig. 9 A schematic diagram of the structure of a steel chord rod of a steel structure building connection node provided by an embodiment of the present invention;

[0035] Fig.10 A schematic diagram of the structure of a steel tube web member of a steel structure building connection node provided by an embodiment of the present invention;

[0036] Fig.11 for Figure 2 A cross-sectional view along AA of the second embodiment of the steel structure building connection node of the building;

[0037] Fig.12 A schematic diagram of the structure of the adjustment cylinder in the second embodiment of the steel structure building connection node provided by the present invention;

[0038] Fig.13 This is a schematic structural diagram of the steel pipe cylinder in the second embodiment of the building steel structure connection node provided by the present invention.

[0039] in:

[0040] 100, steel tube cylinder; 110, first connecting hole; 120, second connecting hole;

[0041] 200, adjusting cylinder; 210, first adjusting hole; 220, second adjusting hole; 230, partition; 240, ring sleeve; 241, round hole; 242, threaded ring surface; 243, first conical ring surface; 244, second conical ring surface; 250, connecting sleeve; 260, first adjusting nut; 270, second adjusting nut; 280, hexagon socket hole;

[0042] 300, steel tube chord; 310, first cutting surface;

[0043] 400, steel tube web; 410, second cutting surface. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] Refer to the following Figure 1-Figure 13 To describe a steel structure building connection node provided by the present invention.

[0048] A steel structure building connection node for building construction is suitable for various structural forms, especially in building scenes that require light weight, high strength and flexible adjustment. A steel structure building connection node for building construction includes a steel tube cylinder 100, and two rows of first connection holes 110 and second connection holes 120 are evenly opened on the side wall of the steel tube cylinder 100. The first connection hole 110 is located above the second connection hole 120. A steel tube chord 300 is installed in the first connection hole 110. The steel tube chord 300 is perpendicular to the steel tube cylinder 100. The steel tube chord 300 is connected to the steel tube cylinder 100 to withstand bending moment, tension or pressure. The steel tube chord 300 is a component that bears axial force; a steel tube web 400 is installed in the second connection hole 120. The steel tube web 400 is connected to the steel tube cylinder 100 at an acute angle. The steel tube web 400 is used to transfer external loads to the steel tube chord 300, thereby maintaining the stability and strength of the entire structure.

[0049] The steel tube chord 300 and the steel tube web 400 are welded to the steel tube cylinder 100. The steel tube chord 300 and the steel tube web 400 need to be installed in the first connection hole 110 and the second connection hole 120 before welding. In order to avoid the other ends of the steel tube chord 300 and the steel tube web 400 being unable to be installed on other structures after welding, an adjustment component is provided inside the steel tube cylinder 100 of the present invention. The adjustment component can pre-clamp one end of the steel tube chord 300 and the steel tube web 400 in the first connection hole 110 and the second connection hole 120. After the other ends of the steel tube chord 300 and the steel tube web 400 are installed on other structures, the positions of the steel tube chord 300 and the steel tube web 400 are adjusted by the adjustment component to reduce the steel tube chord 300 and the steel tube web The stress at the connection between the rod 400 and the steel tube cylinder 100, that is, a gap is generated between the steel tube chord 300 and the first connection hole 110 or the first connection hole 110 and the steel tube chord 300, so as to avoid the two being in a state of mutual compression; similarly, a gap is also generated between the second connection hole 120 and the steel tube web 400, so that the two are not in a state of mutual compression, so the stress between the first connection hole 110 and the steel tube chord 300 and the second connection hole 120 and the steel tube web 400 is reduced, and the two can be welded together by welding equipment at this time, thereby avoiding the phenomenon that the position of the steel tube chord 300 and the steel tube web 400 is offset during welding, resulting in the other end of the steel tube chord 300 and the steel tube web 400 being unable to accurately connect to other structures.

[0050] It should be noted that by pre-clamping the steel tube chord 300 and the steel tube web 400 through the adjustment component, the steel tube chord 300 and the steel tube web 400 can be positioned first, and then the other ends of the steel tube chord 300 and the steel tube web 400 are connected to other structures after positioning, so as to avoid the situation that the accuracy of one end of the steel tube chord 300 and the steel tube web 400 changes when connecting other structures after welding, resulting in the inability to connect other structures. At the same time, the interaction force between the steel tube chord 300 and the steel tube web 400 and the steel tube cylinder 100 is reduced by adjusting the component, so that the two are in contact with each other without force during welding, thereby reducing the stress of the steel tube chord 300 and the steel tube web 400 and the steel tube cylinder 100, thereby extending the service life.

[0051] Specifically, the adjustment component in the first embodiment of the present invention includes an adjustment cylinder 200, a first adjustment nut 260 and a second adjustment nut 270. The adjustment cylinder 200 is spirally connected to the inside of the steel pipe cylinder 100. The side wall of the adjustment cylinder 200 is evenly provided with a first adjustment hole 210 and a second adjustment hole 220 which are parallel to each other. The first adjustment hole 210 corresponds to the first connection hole 110 and has the same size and height. The second adjustment hole 220 has the same size as the second connection hole 120, but the height of the second adjustment hole 220 is higher than that of the second connection hole 120 to accommodate the inclined steel pipe web 400. One end of the steel tube chord 300 passes through the first connecting hole 110 and enters into the first adjusting hole 210. The first adjusting nut 260 is spirally arranged at the top end of the adjusting tube 200. When the first adjusting nut 260 is rotated, the height of the first adjusting nut 260 can be adjusted. After the first adjusting nut 260 moves to its end face abutting against the steel tube chord 300, it continues to move to thereby press the steel tube chord 300. One end of the steel tube web 400 passes through the second connecting hole 120 and enters into the second adjusting hole 220. The second adjusting nut 270 is spirally arranged at the bottom end of the adjusting tube 200. When the second adjusting nut 270 is rotated, the height of the second adjusting nut 270 can be adjusted. After the second adjusting nut 270 moves to its end face abutting against the steel tube web 400, it continues to move to thereby press the steel tube web 400.

[0052] It is understandable that the first adjusting nut 260 and the second adjusting nut 270 can generate different pressing forces on the steel tube chord 300 and the steel tube web 400 when the heights are different, thereby changing the clamping force on the steel tube chord 300 and the steel tube web 400 .

[0053] Specifically, a partition 230 is provided in the adjustment cylinder 200, and the partition 230 divides the adjustment cylinder 200 into two upper and lower spaces. When the steel tube chord 300 is inserted into the first adjustment hole 210, it is located in the upper space. When the first adjustment nut 260 presses the steel tube chord 300, the partition 230 contacts the steel tube chord 300, and the partition 230 provides support force for the steel tube chord 300 so that the first adjustment nut 260 can better clamp the steel tube chord 300; when the steel tube web 400 is inserted into the second adjustment hole 220, it is located in the lower space. When the second adjustment nut 270 presses the steel tube web 400, the partition 230 contacts the steel tube web 400, and the partition 230 provides support force for the steel tube web 400 so that the second adjustment nut 270 can better clamp the steel tube web 400.

[0054] More specifically, a threaded annular surface 242 is provided on the outer circumference of the bottom of the adjusting cylinder 200, and a threaded groove is provided on the inner circumference of the bottom of the steel tube cylinder 100. The adjusting cylinder 200 realizes a spiral connection between the two by cooperating with the threaded annular surface 242 and the threaded groove. When the adjusting cylinder 200 rotates in a small range relative to the steel tube cylinder 100 and reciprocates, the adjusting cylinder 200 can drive the steel tube chord 300 and the steel tube web 400 to reciprocate in the first connecting hole 110 and the second connecting hole 120, thereby generating a gap between the steel tube chord 300 and the first connecting hole 110 and the steel tube web 400 and the second connecting hole 120. This operation can reduce the stress between the steel tube chord 300 and the steel tube web 400 and the first connecting hole 110 and the second connecting hole 120 caused by the other ends of the steel tube chord 300 and the steel tube web 400 being connected to other structures.

[0055] It can be understood that if there is a large stress between the steel tube chord 300 and the steel tube web 400 and the first connection hole 110 and the second connection hole 120, direct welding will cause the stress at that location to always exist, and due to the large stress, the contact between the steel tube chord 300 and the steel tube web 400 and the first connection hole 110 and the second connection hole 120 is uneven, that is, the contact is tighter at the location with large stress, and the contact is more relaxed at the location with small stress. During welding, the welding strength at the location with large stress will be weaker than that at the location with small stress, resulting in uneven welding strength between the steel tube chord 300 and the steel tube web 400 and the first connection hole 110 and the second connection hole 120, and the location with large stress is more likely to fail prematurely. The gap generated by the reciprocating fluctuation of the steel tube chord 300 and the steel tube web 400 can reduce these stresses, so that the contact between the steel tube chord 300 and the steel tube web 400 and the first connection hole 110 and the second connection hole 120 is uniform, that is, the welding strength is the same, thereby improving the service life.

[0056] In order to make a gap between the steel tube cylinder 100 and the adjusting cylinder 200 and facilitate driving the adjusting cylinder 200 to rotate, a ring sleeve 240 is fixedly arranged on the outer periphery of the bottom of the adjusting cylinder 200, and a threaded annular surface 242 is located on the outer periphery of the ring sleeve 240, so that there is a gap between the adjusting cylinder 200 and the steel tube cylinder 100, and a plurality of circular holes 241 are opened on the ring sleeve 240. When the adjusting cylinder 200 is driven to rotate, a long rod (not shown in the figure) is inserted into the circular hole 241 on the ring sleeve 240, and the adjusting cylinder 200 is rotated by pushing the long rod to reduce stress. At the same time, a connecting sleeve 250 is connected to the outer periphery of the upper end of the adjusting cylinder 200, and the outer periphery of the connecting sleeve 250 slides against the inner periphery of the steel tube cylinder 100 to increase the overall rigidity of the steel tube cylinder 100, so that it becomes more stable when subjected to external force and reduces deformation.

[0057] In a further embodiment, the first adjusting nut 260 and the second adjusting nut 270 of the present invention are both provided with a hexagonal hole 280, which can be connected thereto by a hexagonal wrench, and the first adjusting nut 260 and the second adjusting nut 270 can be driven to rotate by rotating the hexagonal wrench to adjust the clamping force on the steel tube chord 300 and the steel tube web 400, which is convenient and quick.

[0058] It can be understood that threads are provided on the outer circumference of the first adjusting nut 260 and the second adjusting nut 270, and thread grooves are provided on the inner circumferential walls of the upper and lower parts of the adjusting cylinder 200. The threads on the first adjusting nut 260 and the second adjusting nut 270 respectively cooperate with the thread grooves in the upper and lower parts of the adjusting cylinder 200, so that the first adjusting nut 260 and the second adjusting nut 270 can tighten the steel tube chord 300 and the steel tube web 400 when they are rotated.

[0059] Specifically, the steel tube chord rod 300 and the steel tube web rod 400 in the present invention are both cut by a cutting machine at one end of the insertion. Fig. 9 As shown, since the steel chord 300 is vertically connected to the steel tube cylinder 100, a first cutting surface 310 is symmetrically cut on one end of the steel chord 300 for insertion, so that the inserted ends of the plurality of steel chords 300 abut against each other, and the abutting area is larger, that is, the first cutting surfaces 310 of the steel chord 300 contact each other, thereby increasing the connection strength of the plurality of steel chords 300; similarly, Fig.10 As shown, since the steel tube web 400 and the steel tube cylinder 100 are connected at an acute angle, a second cutting surface 410 is symmetrically cut at one end of the inserted steel tube web 400. The second cutting surface 410 increases a cutting surface cut along a direction parallel to the partition 230 at a position close to the partition 230, so that the contact area between the steel tube web 400 and the partition 230 is also increased. At the same time, the second cutting surfaces 410 of multiple steel tube webs 400 are also in contact with each other, thereby increasing the connection strength of the multiple steel tube webs 400.

[0060] Of course, the ends of the steel tube chord 300 and the steel tube web 400 inserted therein may not be cut, and the steel tube chord 300 and the steel tube web 400 may still be connected to the steel tube cylinder 100, which is not specifically limited here.

[0061] In the second embodiment of the present invention, other structures are the same as those in the first embodiment, except that the connection method between the adjustment tube 200 and the steel tube cylinder 100 is different. The outer periphery of the bottom of the adjustment tube 200 in the second embodiment does not have a threaded annular surface 242 but has a first conical annular surface 243, the small end of the first conical annular surface 243 faces upward and the large end faces downward, while the inner periphery of the bottom of the steel tube cylinder 100 is not a threaded groove but a second conical annular surface 244, the small end of the second conical annular surface 244 faces upward and the large end faces downward. The first conical annular surface 243 and the second conical annular surface 244 are frictionally contacted to adjust the positions of the steel tube chord 300 and the steel tube web 400 in the first connecting hole 110 and the second connecting hole 120, thereby reducing stress. Although the axial movement of the adjusting cylinder 200 is not as easy to operate as the spiral connection in the first embodiment, the frictionally connected adjusting cylinder 200 can adapt to special situations. For example, when an earthquake occurs, the welding position of the steel tube chord 300 and the steel tube web 400 may crack. At this time, the adjusting cylinder 200 can move downward to squeeze the steel tube chord 300 and the steel tube web 400 under the action of its own gravity and the vibration of the steel tube cylinder 100 during the earthquake, so that the steel tube chord 300 and the steel tube web 400 can be stuck in the first connecting hole 110 and the second connecting hole 120, thereby preventing the steel tube chord 300 and the steel tube web 400 from being separated from the first connecting hole 110 and the second connecting hole 120 due to cracking of the welding position.

[0062] Specifically, the outer peripheral surface of the ring sleeve 240 on the adjustment tube 200 in the second embodiment is a first conical ring surface 243, and a long rod is inserted into the circular hole 241 of the ring sleeve 240. Pushing the long rod can drive the adjustment tube 200 to move in the steel tube cylinder 100 to reduce the stress between the steel tube chord 300 and the steel tube web 400 and the first connecting hole 110 and the second connecting hole 120.

[0063] The specific installation process of a steel structure building connection node provided by the present invention is described in combination with the above embodiments:

[0064] First embodiment:

[0065] Pre-clamping:

[0066] First, the adjusting cylinder 200 is screwed into the steel tube cylinder 100 so that the first connecting hole 110 and the first adjusting hole 210 are aligned, and the position of the second adjusting hole 220 is higher than the position of the second connecting hole 120. Then, one end of the steel tube chord 300 cut by the cutting machine is inserted into the steel tube cylinder 100 through the first connecting hole 110. After the inserted end enters the first adjusting hole 210 of the adjusting cylinder 200, after all the steel tube chords 300 are inserted, the first cutting surfaces 310 of the inserted ends contact each other. At this time, the first adjusting nut 260 is installed on the upper end of the adjusting cylinder 200, and the first adjusting nut 260 is driven to rotate by the hexagonal wrench so that the first adjusting nut 260 can move in the direction close to the steel tube chord 300, so that the first adjusting nut 260 presses the inserted end of the steel tube chord 300.

[0067] Similarly, the cut end of the steel tube web 400 is inserted into the second connecting hole 120, and the inserted end of the steel tube web 400 passes through the second adjusting hole 220 of the adjusting tube 200. When multiple steel tube webs 400 are fully inserted, the second cutting surfaces 410 of the steel tube webs 400 contact each other, and then the second adjusting nut 270 is installed on the lower end of the adjusting tube 200, and the second adjusting nut 270 is driven to rotate by the hexagonal wrench so that the second adjusting nut 270 moves toward the direction close to the steel tube web 400, thereby making the second adjusting nut 270 press the insertion end of the steel tube web 400.

[0068] connect:

[0069] After the first adjusting nut 260 and the second adjusting nut 270 clamp the steel tube chord 300 and the steel tube web 400, the other ends of the steel tube chord 300 and the steel tube web 400 are connected to other structures, and the next operation is performed after the connection is completed.

[0070] Reduce stress:

[0071] A long rod is inserted into the circular hole 241 on the ring sleeve 240 on the outer periphery of the adjusting cylinder 200, and the long rod is pushed back and forth to make the adjusting cylinder 200 reciprocate. Since the adjusting cylinder 200 is spirally connected to the steel tube cylinder 100, it also reciprocates axially while reciprocating, so that the adjusting cylinder 200 drives the insertion ends of the steel tube chord 300 and the steel tube web 400 to fluctuate in the first connecting hole 110 and the second connecting hole 120, so that a gap is generated between the steel tube chord 300 and the steel tube web 400 and the first connecting hole 110 and the second connecting hole 120, thereby reducing stress.

[0072] welding:

[0073] After eliminating the stress, the steel tube chord 300 and the first connection hole 110 are welded together, and the steel tube web 400 and the second connection hole 120 are welded together.

[0074] Second embodiment:

[0075] The other operations are the same as those in the first embodiment, except that the installation and adjustment methods of the adjusting cylinder 200 and the steel tube cylinder 100 are different. Since the outer periphery of the ring sleeve 240 of the adjusting cylinder 200 in the second embodiment is a first conical ring surface 243, with the small end facing upward and the large end facing downward, and the inner periphery of the bottom of the steel tube cylinder 100 is a second conical ring surface 244, with the small end facing upward and the large end facing downward, it is necessary to insert the adjusting cylinder 200 from the bottom of the steel tube cylinder 100 into the steel tube cylinder 100. When the first conical ring surface 243 and the second conical ring surface 244 are in contact, the steel tube chord 300 and the steel tube web 400 are inserted into the first connecting hole 110 and the second connecting hole 120 in turn. The installation steps are the same as those in the first embodiment described above, but the frictional contact between the adjusting cylinder 200 and the steel tube cylinder 100 in the second embodiment can adapt to special situations. For example, when an earthquake occurs, if the welding joint between the steel tube chord 300 and the steel tube web member 400 is broken, the adjusting cylinder 200, under the action of its own gravity and the vibration of the steel tube cylinder 100, drives the insertion ends of the steel tube chord 300 and the steel tube web member 400 to move downward to clamp the steel tube chord 300 and the steel tube web member 400 in the first connecting hole 110 and the second connecting hole 120, thereby preventing the steel tube chord 300 and the steel tube web member 400 from being separated from the first connecting hole 110 and the second connecting hole 120.

[0076] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A steel structure building connection node, characterized in that: include: A steel tube cylinder, wherein two rows of first connecting holes and second connecting holes are evenly arranged on the side wall of the steel tube cylinder, a steel tube chord rod is installed in the first connecting hole, and the steel tube chord rod is perpendicular to the steel tube cylinder, and a steel tube web rod is installed in the second connecting hole, and the angle between the steel tube web rod and the steel tube cylinder is an acute angle; An adjustment component, wherein the adjustment component can pre-clamp the steel tube chord and the steel tube web, and can adjust the positions of the steel tube chord and the steel tube web on the steel tube cylinder. After the adjustment of the adjustment component is completed, the steel tube chord and the steel tube web are welded to the steel tube cylinder; The adjustment assembly comprises an adjustment cylinder, a first adjustment nut and a second adjustment nut. The adjustment cylinder is spirally connected in the steel tube cylinder. Two rows of first adjustment holes and second adjustment holes parallel to each other are evenly opened on the side wall of the adjustment cylinder. One end of the steel chord is inserted into the first adjustment hole, the first adjustment nut is screwed into the adjustment tube and abuts against the end of the steel chord inserted into the first adjustment hole, and the first adjustment nut is rotated to compress the steel chord; One end of the steel tube web is inserted into the second adjustment hole, the second adjustment nut is screwed inside the adjustment tube and abuts against one end of the steel tube web inserted into the second adjustment hole, and the second adjustment nut is rotated to compress the steel tube web.

2. The steel structure building connection node according to claim 1, characterized in that: A partition is arranged inside the adjusting cylinder, and two end surfaces of the partition are respectively in contact with the steel tube chord and the steel tube web.

3. The steel structure building connection node according to claim 1, characterized in that: The outer periphery of the bottom of the adjusting cylinder is provided with a threaded annular surface, and the inner periphery of the bottom of the steel tube cylinder is provided with a threaded groove, and the threaded annular surface cooperates with the threaded groove.

4. The steel structure building connection node according to claim 1, characterized in that: A hexagonal hole is formed on one end surface of the first adjusting nut and the second adjusting nut.

5. The steel structure building connection node according to claim 1, characterized in that: A connecting sleeve is arranged on the outer periphery of the upper end of the adjusting cylinder, and the outer periphery of the connecting sleeve is slidably abutted against the inner periphery of the steel pipe cylinder.

6. The steel structure building connection node according to claim 1, characterized in that: The end of the steel pipe chord inserted into the first connecting hole has a first cutting surface, and the first cutting surfaces of the plurality of steel pipe chords are in contact with each other.

7. The steel structure building connection node according to claim 1, characterized in that: The end of the steel tube web member inserted into the second connection hole has a second cutting surface, and the second cutting surfaces of the plurality of steel tube web members are in contact with each other.

8. The steel structure building connection node according to claim 1, characterized in that: The adjustment assembly may further include an adjustment cylinder, a first adjustment nut and a second adjustment nut, wherein the adjustment cylinder is axially frictionally arranged in the steel tube cylinder, and two rows of mutually parallel first adjustment holes and second adjustment holes are evenly opened on the side wall of the adjustment cylinder; One end of the steel chord is inserted into the first adjustment hole, the first adjustment nut is screwed into the adjustment tube and abuts against the end of the steel chord inserted into the first adjustment hole, and the first adjustment nut is rotated to compress the steel chord; One end of the steel tube web is inserted into the second adjustment hole, the second adjustment nut is spirally sleeved inside the adjustment tube and abuts against one end of the steel tube web inserted into the second adjustment hole, and the second adjustment nut is rotated to tighten the steel tube web.

9. The steel structure building connection node according to claim 8, characterized in that: The outer periphery of the bottom of the adjusting cylinder is provided with a first conical annular surface, wherein the small end of the first conical annular surface faces upwards and the large end faces downwards; A second conical annular surface is arranged on the inner periphery of the bottom of the steel tube cylinder, the small end of the second conical annular surface faces upward and the large end faces downward, and the second conical annular surface is in frictional contact with the first conical annular surface.

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