Double-steel-column butt joint structure and steel structure connecting joint
By using the design of limiting sleeves and guide flanges, the problem of hole misalignment during steel column docking was solved, improving construction efficiency and reducing costs, while ensuring the stability and safety of the structure.
Patent Information
- Application Number
- CN202422949387.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2034-11-29
AI Technical Summary
In existing technologies, misalignment of holes is prone to occur when steel columns are joined, resulting in low construction efficiency and complex and costly positioning devices.
The design employs a limiting sleeve and a guide flange. The limiting sleeve is fitted onto the second docking end and fixedly connected to it, forming a limiting groove that matches the first docking end. The guide flange is positioned opposite to the guide groove to guide the first docking end to a preset position to ensure vertical docking and hole alignment.
This achieved efficient vertical connection of steel columns, improved construction efficiency, reduced production costs, and ensured the stability and safety of the structure.
Smart Images
Figure CN223689062U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of steel structure connecting nodes, and particularly relates to a double-steel-column butt joint structure and a steel structure connecting node. BACKGROUND
[0002] In a multi-layer steel structure, in order to facilitate transportation, the steel columns are generally divided into multiple sections, and the steel columns are butt jointed after being transported to the site. During the butt joint process, the two steel columns need to be butt jointed vertically. If the two steel columns are inclined or deviated during butt joint, the center of gravity of the entire structure will be offset, thereby affecting the overall stability of the structure. Therefore, during the butt joint process, the perpendicularity of the steel columns must be ensured to ensure the stability and safety of the structure.
[0003] The prior art such as patent CN214352023U proposes a steel structure auxiliary positioning device with precise butt joint, which comprises a limiting slide plate, a clamping plate, a first steel body and a second steel body. A positioning nut is threadedly connected to the front axial center of the limiting slide plate. A sliding hole is formed in the upper surface of the limiting slide plate. Limiting rods are fixedly welded on both sides of the inner wall of the sliding hole. The first steel body is slidably sleeved on the inner wall of the sliding hole. The positioning device can ensure that the first steel body is vertically butt jointed with the second steel body by rotating the first threaded rod when the steel column is vertically butt jointed, so that the clamping plate contacts the second steel body to position and fix the second steel body, so that the first steel ladder can be precisely vertically butt jointed with the second steel body, and the structure has good stability and safety.
[0004] However, in order to reduce the installation difficulty and improve the construction efficiency, the two steel columns are generally fixed by means of bolt connection. Although the above-mentioned positioning device can ensure that the first steel body can be vertically butt jointed with the second steel body, the hole positions of the first steel body and the second steel body are prone to misalignment when the first steel body is butt jointed with the second steel body. It is necessary to rework to align the hole positions of the first steel body and the second steel body, thereby greatly reducing the construction efficiency. At the same time, the overall structure of the above-mentioned positioning device is complex, and the production cost is high. Practical new type content
[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art, and to provide a double-steel-column butt joint structure and a steel structure connecting node with high construction efficiency and low production cost.
[0006] The purpose of the present disclosure is achieved by the following technical solutions:
[0007] A double-steel-column butt joint structure comprises:
[0008] A first circular pipe steel column comprises a first butt joint end;
[0009] The second circular steel column comprises a second butt joint end, and the first butt joint end is arranged opposite to the second butt joint end.
[0010] A limiting sleeve is sleeved on the second butt joint end, and an inner circumferential wall of the limiting sleeve is fixedly connected with an outer circumferential wall of the second butt joint end, so that the limiting sleeve and the second butt joint end jointly form a limiting groove matched with the first butt joint end, and an opening of the limiting groove is arranged towards the first butt joint end.
[0011] The first butt joint end is provided with a guide flange, the inner circumferential wall of the limiting sleeve is provided with a guide groove in communication with the limiting groove, and the guide groove extends to an opening of the guide groove along a butt joint direction of the first butt joint end and the second butt joint end, the guide flange is arranged opposite to the guide groove, and the guide groove is used for guiding the first butt joint end to be installed at a preset position of the second butt joint end.
[0012] In one of the embodiments, the first circular steel column further comprises a first circular steel column body connected with the first butt joint end, the second circular steel column further comprises a second circular steel column body connected with the second butt joint end, and the first butt joint end and the first circular steel column body and the second butt joint end and the second circular steel column body are integrally formed.
[0013] In one of the embodiments, the first circular steel column further comprises a first support, a fixed end of the first support is weldedly connected with an outer circumferential wall of the first circular steel column body, and a support end of the first support is weldedly connected with the first butt joint end, and the first support is used for supporting the first butt joint end.
[0014] In one of the embodiments, the second circular steel column further comprises a second support, a fixed end of the second support is weldedly connected with an outer circumferential wall of the second circular steel column body, and a support end of the second support is weldedly connected with the second butt joint end, and the second support is used for supporting the second butt joint end.
[0015] In one of the embodiments, the first butt joint end and the second butt joint end are threadedly connected, and the inner circumferential wall of the limiting sleeve is welded to the outer circumferential wall of the second butt joint end.
[0016] In one of the embodiments, the double-steel-column butt joint structure further comprises a first fastener, the first butt joint end is provided with a first positioning hole, the second butt joint end is provided with a first threaded hole, and the first fastener is screwed into the first threaded hole through the first positioning hole.
[0017] In one of the embodiments, a cross section of an abutting end of the guide flange is in a circular arc shape, and the guide groove is matched with the guide flange.
[0018] The abutting end of the guide flange is formed with a first smooth abutting surface, and the inner wall of the guide groove is formed with a second smooth abutting surface, and the first smooth abutting surface and the second smooth abutting surface are arranged in sliding mode.
[0019] In one of the embodiments, the number of the guide flanges and the guide grooves is multiple, the multiple guide grooves are arranged uniformly along the inner circumferential wall of the limiting sleeve, and the multiple guide flanges are arranged uniformly along the outer circumferential wall of the first abutting end.
[0020] In one of the embodiments, the double-steel-column abutting structure further comprises a second fastener, the outer circumferential wall of the first abutting end is further provided with a second threaded hole, the limiting sleeve is provided with a second positioning hole corresponding to the second threaded hole, and the second fastener is screwed into the second threaded hole through the second positioning hole.
[0021] A steel structure connecting joint comprises the double-steel-column abutting structure of any one of the above embodiments.
[0022] Compared with the prior art, the present disclosure has at least the following advantages:
[0023] 1. The double-steel-column abutting structure described above, since the limiting sleeve is sleeved on the second abutting end, and the inner circumferential wall of the limiting sleeve is fixedly connected with the outer circumferential wall of the second abutting end, the limiting sleeve and the second abutting end jointly form a limiting groove that is matched with the first abutting end, the slot opening of the limiting groove is arranged towards the first abutting end, so that the first abutting end can be perpendicularly abutted on the second abutting end through the limiting groove, and the first circular pipe steel column can be perpendicularly abutted on the second circular pipe steel column, thereby ensuring that the double-steel-column abutting structure has high structural stability and structural safety; the first abutting end is provided with a guide flange, the inner circumferential wall of the limiting sleeve is provided with a guide groove that is in communication with the limiting groove and extends to the slot opening of the guide groove along the abutting direction of the first abutting end and the second abutting end, the guide flange is arranged opposite to the guide groove, the guide groove is used for guiding the first abutting end to be installed at a preset position of the second abutting end, so that the guide flange can drive the first abutting end to slide along the guide path of the guide groove to the preset position of the second abutting end, and the hole position of the first abutting end can be accurately aligned with the hole position of the second abutting end, thereby avoiding the phenomenon that the first abutting end and the second abutting end need to be reworked due to installation misalignment, and thereby the construction efficiency of the double-steel-column abutting structure is greatly improved.
[0024] 2. Compared with the positioning device in the related art described above, the overall structure of the double-steel-column abutting structure of the present disclosure is more simple and compact, thereby greatly reducing the production cost of the double-steel-column abutting structure of the present disclosure. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some of the embodiments of the present disclosure, and therefore should not be considered as limiting the scope. For those skilled in the art, other related drawings can also be obtained from these drawings without creative labor.
[0026] Figure 1 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment;
[0027] Figure 2 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment; Figure 1
[0028] Figure 3 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment; Figure 2
[0029] Figure 4 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment; Figure 1
[0030] Figure 5 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment; Figure 4
[0031] Figure 6 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment; Figure 1
[0032] Figure 7 A structural schematic diagram of a double-steel-column butt joint structure of an embodiment; Figure 6 DETAILED DESCRIPTION
[0033] In order to facilitate the understanding of the present disclosure, the following will make a more comprehensive description of the present disclosure with reference to the related drawings. The preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thorough and comprehensive.
[0034] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0036] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:
[0037] like Figures 1 to 7 As shown, an embodiment of the double steel column docking structure 10 includes a first circular steel column 100, a second circular steel column 200, and a limiting sleeve 300. The first circular steel column 100 includes a first docking end 110, and the second circular steel column 200 includes a second docking end 210. The first docking end 110 and the second docking end 210 are arranged opposite to each other. The limiting sleeve 300 is sleeved on the second docking end 210, and the inner peripheral wall of the limiting sleeve 300 is fixedly connected to the outer peripheral wall of the second docking end 210, so that the limiting sleeve 300 and the second docking end 210 together form a limiting groove 400 that is adapted to the first docking end 110. The opening of the limiting groove 400 is arranged facing the first docking end 110, so that the first docking end 110 can be perpendicularly docked with the second docking end 210 through the limiting groove 400, so that the first circular steel column 100 can be perpendicularly docked with the second circular steel column 200, thereby ensuring that the double steel column docking structure 10 has high structural stability and structural safety.
[0038] like Figures 1 to 7 As shown, the first docking end 110 is further provided with a guide flange 111, and the inner peripheral wall of the limiting sleeve 300 is provided with a guide groove 310 that communicates with the limiting groove 400. The guide groove 310 extends along the docking direction X between the first docking end 110 and the second docking end 210 to the opening of the guide groove 310. The guide flange 111 and the guide groove 310 are arranged opposite to each other. The guide groove 310 is used to guide the first docking end 110 to be installed at a preset position of the second docking end 210, so that the guide flange 111 can drive the first docking end 110 to slide along the guide path of the guide groove 310 to the preset position of the second docking end 210. This allows the hole position of the first docking end 110 to be accurately aligned with the hole position of the second docking end 210, so as to avoid the phenomenon of rework caused by misalignment of the first docking end 110 and the second docking end 210, thereby greatly improving the construction efficiency of the above-mentioned double steel column docking structure 10. Meanwhile, compared with the positioning devices in the aforementioned related technologies, the overall structure of the double steel column docking structure 10 disclosed herein is simpler and more compact, thereby greatly reducing the production cost of the double steel column docking structure 10 disclosed herein.
[0039] In the embodiment, when the first circular pipe steel column 100 is butt-jointed with the second circular pipe steel column 200, first, the first butt-joint end 110 is aligned with the second butt-joint end 210, so that the first butt-joint end 110 is located directly above the slot opening of the limiting slot 400, and the guide flange 111 is located directly above the guide slot 310; then, the first butt-joint end 110 is inserted into the limiting slot 400, and the guide flange 111 is inserted into the guide slot 310, so that the guide flange 111 drives the first butt-joint end 110 to slide along the guide path of the guide slot 310 to the preset position of the second butt-joint end 210, so that the hole position of the first butt-joint end 110 can be accurately aligned with the hole position of the second butt-joint end 210, and at the same time, under the limiting and guiding action of the guide slot 310 and the limiting slot 400, the first circular pipe steel column 100 is vertically butt-jointed with the second circular pipe steel column 200, so as to ensure that the double steel column butt-joint structure 10 has high structural stability and structural safety.
[0040] The double steel column butt-joint structure 10 described above, since the limiting sleeve 300 is sleeved on the second butt-joint end 210, and the inner peripheral wall of the limiting sleeve 300 is fixedly connected with the outer peripheral wall of the second butt-joint end 210, so that the limiting sleeve 300 and the second butt-joint end 210 jointly form the limiting slot 400 matched with the first butt-joint end 110, the slot opening of the limiting slot 400 is arranged towards the first butt-joint end 110, so that the first butt-joint end 110 can be vertically butt-jointed with the second butt-joint end 210 through the limiting slot 400, so that the first circular pipe steel column 100 can be vertically butt-jointed with the second circular pipe steel column 200, so as to ensure the structural stability and structural safety of the double steel column butt-joint structure 10; the first butt-joint end 110 protrudes with the guide flange 111, the inner peripheral wall of the limiting sleeve 300 is provided with the guide slot 310 communicated with the limiting slot 400 and extending to the slot opening of the guide slot 310 along the butt-joint direction X of the first butt-joint end 110 and the second butt-joint end 210, the guide flange 111 is oppositely arranged with the guide slot 310, and the guide slot 310 is used for guiding the first butt-joint end 110 to be installed at the preset position of the second butt-joint end 210, so that the guide flange 111 can drive the first butt-joint end 110 to slide along the guide path of the guide slot 310 to the preset position of the second butt-joint end 210, so that the hole position of the first butt-joint end 110 can be accurately aligned with the hole position of the second butt-joint end 210, so as to avoid the phenomenon of rework caused by the misalignment of the first butt-joint end 110 and the second butt-joint end 210, thereby greatly improving the construction efficiency of the double steel column butt-joint structure 10.
[0041] Compared with the positioning device in the related art described above, the overall structure of the double steel column butt-joint structure 10 of the present disclosure is more simple and compact, thereby greatly reducing the production cost of the double steel column butt-joint structure 10 of the present disclosure.
[0042] As Figures 6 to 7As shown in the drawings, in one of the embodiments, the first circular pipe steel column 100 further comprises a first circular pipe steel column body 120 connected with the first butt joint end 110, and the second circular pipe steel column 200 further comprises a second circular pipe steel column body 220 connected with the second butt joint end 210, and the first butt joint end 110 and the first circular pipe steel column body 120 and the second butt joint end 210 and the second circular pipe steel column body 220 are all integrally formed structures, so as to improve the compactness of the first circular pipe steel column 100 and the second circular pipe steel column 200.
[0043] As shown in the drawings, Figures 2 to 7 As shown in the drawings, in one of the embodiments, the first circular pipe steel column 100 further comprises a first support 130, a fixed end of the first support 130 is weldedly connected with the outer peripheral wall of the first circular pipe steel column body 120, and a support end of the first support 130 is weldedly connected with the first butt joint end 110, the first support 130 is used for supporting the first butt joint end 110, so as to improve the compression stiffness of the first butt joint end 110, so that the pressure bearing capacity of the first butt joint end 110 is improved, and the overall stability of the double steel column butt joint structure 10 is improved.
[0044] As shown in the drawings, Figures 3 to 4 As shown in the drawings, in one of the embodiments, the second circular pipe steel column 200 further comprises a second support, a fixed end of the second support is weldedly connected with the outer peripheral wall of the second circular pipe steel column body 220, and a support end of the second support is weldedly connected with the second butt joint end 210, the second support is used for supporting the second butt joint end 210, so as to improve the compression stiffness of the second butt joint end 210, so that the pressure bearing capacity of the second butt joint end 210 is improved, and the overall stability of the double steel column butt joint structure 10 is further improved.
[0045] In one of the embodiments, the first butt joint end 110 and the second butt joint end 210 are threadedly connected, so as to reduce the installation difficulty of the first butt joint end 110 and the second butt joint end 210 and improve the construction efficiency; the inner peripheral wall of the limiting sleeve 300 is welded to the outer peripheral wall of the second butt joint end 210, so that the limiting sleeve 300 can be fixedly arranged on the outer peripheral wall of the second butt joint end 210, and the compactness of the double steel column butt joint structure 10 is improved.
[0046] As shown in the drawings, Figures 1 to 3 As shown in the drawings, in one of the embodiments, the double steel column butt joint structure 10 further comprises a first fastener (not shown in the drawings), the first butt joint end 110 is provided with a first positioning hole 112, the second butt joint end 210 is provided with a first threaded hole 211, and the first fastener is screwed into the first threaded hole 211 through the first positioning hole 112, so as to reduce the installation difficulty of the first butt joint end 110 and the second butt joint end 210 and improve the construction efficiency.
[0047] As shown in the drawings, Figures 4 to 7As shown, in one of the embodiments, the cross section of the abutting end of the guide flange 111 is in the shape of a circular arc, and the guide groove 310 is adapted to the guide flange 111 to reduce the contact area between the guide flange 111 and the inner wall of the guide groove 310, so that the friction between the first abutting end 110 and the limiting sleeve 300 is reduced during the abutting process of the first circular pipe steel column 100 and the second circular pipe steel column 200, and the first abutting end 110 is more labor-saving and fast when sliding relative to the inner circumferential wall of the limiting sleeve 300, and the construction efficiency of the above-mentioned double steel column abutting structure 10 is further improved.
[0048] As shown, Figures 4 to 7 As shown, in one of the embodiments, the abutting end of the guide flange 111 is formed with a first smooth abutting surface 1111, and the inner wall of the guide groove 310 is formed with a second smooth abutting surface 311, and the first smooth abutting surface 1111 and the second smooth abutting surface 311 are slidingly arranged, so as to further reduce the friction between the first abutting end 110 and the limiting sleeve 300, and further improve the construction efficiency of the above-mentioned double steel column abutting structure 10.
[0049] As shown, Figures 4 to 7 As shown, in one of the embodiments, the guide flange 111 and the guide groove 310 are a plurality of numbers, the plurality of guide grooves 310 are uniformly arranged along the inner circumferential wall of the limiting sleeve 300, and the plurality of guide flanges 111 are uniformly arranged along the outer circumferential wall of the first abutting end 110, so as to improve the abutting efficiency of the first abutting end 110 and the second abutting end 210, and further improve the construction efficiency of the above-mentioned double steel column abutting structure 10.
[0050] As shown, Figures 4 to 7 As shown, in one of the embodiments, the double steel column abutting structure 10 further comprises a second fastener (not shown), the outer circumferential wall of the first abutting end 110 is further provided with a second threaded hole 113, the limiting sleeve 300 is provided with a second positioning hole 320 corresponding to the second threaded hole 113, and the second fastener is screwed into the second threaded hole 113 through the second positioning hole 320, so that the first abutting end 110 can be more firmly fixed on the second abutting end 210, the above-mentioned double steel column abutting structure 10 has high structural compactness, avoids safety problems caused by the disengagement of the first circular pipe steel column 100 and the second circular pipe steel column 200, and further greatly improves the use safety of the above-mentioned double steel column abutting structure 10.
[0051] The present disclosure also provides a steel structure connecting joint comprising the double steel column abutting structure 10 of any of the above-mentioned embodiments.
[0052] Compared with the prior art, the present disclosure has at least the following advantages:
[0053] 1. In the aforementioned steel structure connection node, since the limiting sleeve 300 is fitted onto the second docking end 210, and the inner peripheral wall of the limiting sleeve 300 is fixedly connected to the outer peripheral wall of the second docking end 210, the limiting sleeve 300 and the second docking end 210 together form a limiting groove 400 that is adapted to the first docking end 110. The opening of the limiting groove 400 is set towards the first docking end 110, so that the first docking end 110 can be perpendicularly docked to the second docking end 210 through the limiting groove 400, and the first circular steel column 100 can be perpendicularly docked to the second circular steel column 200, so as to ensure that the double steel column docking structure 10 has high structural stability and structural safety; the first docking end 110 is provided with a guide flange 111, and the inner peripheral wall of the limiting sleeve 300 is provided with a limiting flange 111. The guide groove 310, which is connected to the groove 400, extends along the docking direction X of the first docking end 110 and the second docking end 210 to the opening of the guide groove 310. The guide flange 111 is arranged opposite to the guide groove 310. The guide groove 310 is used to guide the first docking end 110 to be installed at a preset position of the second docking end 210, so that the guide flange 111 can drive the first docking end 110 to slide along the guide path of the guide groove 310 to the preset position of the second docking end 210. This allows the hole position of the first docking end 110 to be accurately aligned with the hole position of the second docking end 210, so as to avoid the phenomenon of rework caused by the misalignment of the first docking end 110 and the second docking end 210, thereby greatly improving the construction efficiency of the above-mentioned double steel column docking structure 10.
[0054] 2. Compared with the positioning devices in the above-mentioned related technologies, the overall structure of the double steel column docking structure 10 disclosed herein is simpler and more compact, thereby greatly reducing the production cost of the double steel column docking structure 10 disclosed herein.
[0055] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A double steel column butt joint structure, comprising: a first circular tube steel column comprising a first butt joint end; a second circular tube steel column comprising a second butt joint end, the first butt joint end being oppositely arranged with the second butt joint end; a limiting sleeve sleeved on the second butt joint end, and an inner circumferential wall of the limiting sleeve being fixedly connected with an outer circumferential wall of the second butt joint end, so that the limiting sleeve and the second butt joint end jointly form a limiting groove matched with the first butt joint end, an opening of the limiting groove being arranged towards the first butt joint end; characterized in that the first butt joint end is provided with a guide flange, the inner circumferential wall of the limiting sleeve is provided with a guide groove in communication with the limiting groove and extending to an opening of the guide groove along a butt joint direction of the first butt joint end and the second butt joint end, the guide flange is oppositely arranged with the guide groove, and the guide groove is used for guiding the first butt joint end to be installed at a preset position of the second butt joint end.
2. The dual steel column butt joint structure of claim 1, wherein, The first circular tube steel column further comprises a first circular tube steel column main body connected with the first butt joint end, and the second circular tube steel column further comprises a second circular tube steel column main body connected with the second butt joint end, the first butt joint end and the first circular tube steel column main body and the second butt joint end and the second circular tube steel column main body are integrally formed.
3. The dual steel column butt joint structure of claim 2, wherein, The first circular tube steel column further comprises a first support, a fixed end of the first support being weldedly connected with an outer circumferential wall of the first circular tube steel column main body, and a support end of the first support being weldedly connected with the first butt joint end, the first support being used for supporting the first butt joint end.
4. The dual steel column butt joint structure of claim 2, wherein, The second circular tube steel column further comprises a second support, a fixed end of the second support being weldedly connected with an outer circumferential wall of the second circular tube steel column main body, and a support end of the second support being weldedly connected with the second butt joint end, the second support being used for supporting the second butt joint end.
5. The dual steel column butt joint structure of claim 1, wherein The first butt joint end and the second butt joint end are threadedly connected, and the inner circumferential wall of the limiting sleeve is welded to the outer circumferential wall of the second butt joint end.
6. The dual steel column butt joint structure of claim 5, wherein, The double steel column butt joint structure further comprises a first fastener, the first butt joint end is provided with a first positioning hole, the second butt joint end is provided with a first threaded hole, and the first fastener passes through the first positioning hole and is screwed into the first threaded hole.
7. The dual steel column butt joint structure of claim 1, wherein A cross section of an abutting end of the guide flange is in a circular arc shape, the guide groove is matched with the guide flange; and / or the abutting end of the guide flange is formed with a first smooth abutting surface, an inner wall of the guide groove is formed with a second smooth abutting surface, and the first smooth abutting surface and the second smooth abutting surface are slidingly arranged.
8. The dual steel column butt joint structure of claim 1, wherein, The guide flange and the guide groove are in a plurality of numbers, the plurality of guide grooves are uniformly arranged along the inner circumferential wall of the limiting sleeve, and the plurality of guide flanges are uniformly arranged along an outer circumferential wall of the first butt joint end.
9. The dual steel column butt joint structure of claim 1, wherein, The double-steel-column butt joint structure further comprises a second fastener, the outer peripheral wall of the first butt joint end is further provided with a second threaded hole, the limiting sleeve is provided with a second positioning hole corresponding to the second threaded hole, and the second fastener is screwed into the second threaded hole through the second positioning hole.
10. A steel structural connection joint, characterized by, The double-steel-column butt joint structure according to any one of claims 1 to 9. The double-steel-column butt joint structure according to any one of claims 1 to 9.