Unit steel column butt joint structure and method

Abstract

The application relates to the technical field of steel structure construction, in particular to a unit steel column butt joint structure and method, which comprises a first steel column and a second steel column, two plug-in columns are arranged on the first steel column, and two plug-in holes are arranged on the second steel column; a first magnetic block is arranged on the plug-in column, a first pull rope is fixed on the second steel column, and a second magnetic block is hung through the first pull rope, and the position of the second magnetic block corresponds to that of the first magnetic block; at least one through hole is arranged on the second steel column, a rotating shaft is arranged in the through hole through a bearing, the rotating shaft is located between the two plug-in holes, and a limiting strip is fixedly connected to the rotating shaft; the length of the limiting strip is greater than the distance between the two plug-in holes; the plug-in column and the plug-in hole can not only quickly butt joint the first steel column and the second steel column, but also bend the limiting strip three times in the plug-in process, so that the butt joint of the first steel column and the second steel column is relatively fixed.

Description

Technical Field

[0001] This invention relates to the field of steel structure construction technology, specifically to a unit steel column connection structure and method. Background Technology

[0002] With the large-scale construction of high-rise and super high-rise buildings, steel-concrete composite columns have been widely used due to their high load-bearing capacity, good seismic performance, and simple structure. They not only solve the brittleness problem of high-strength concrete columns, but also further reduce the cross-sectional dimensions of columns. However, due to the large size and weight of the steel tubes in steel-concrete composite columns, especially giant steel-concrete composite columns, difficulties are often encountered during transportation and hoisting. To solve the transportation and hoisting problems, steel-concrete composite columns are usually manufactured in sections, and high-altitude docking is carried out during the installation process.

[0003] The existing patent application (CN202310654616.X) describes a clamp and method for high-altitude docking of steel pipe columns. The steps are as follows: The lower steel column is clamped tightly using clamping rings one and two, and an operating platform is installed on clamping ring one. On the operating platform, an adjusting screw is fixed to clamping ring two, and lower nut two is screwed onto the adjusting screw. After adjustment to a suitable position, the upper steel column, with clamping ring three assembled on the ground, is hoisted to the required height, slowly lowered vertically and aligned with the adjusting screw, clamping ring three is inserted into the adjusting screw, upper nut two is tightened, and the verticality and gap between the upper and lower steel columns are adjusted before welding and fixing. This existing technology requires an operating platform on clamping ring one, which is time-consuming and labor-intensive. Furthermore, during the docking process, a tower crane is needed to hoist the upper steel column for adjustment, and the hook can only be lowered after positioning is complete, significantly increasing costs and construction time.

[0004] Therefore, how to accelerate the assembly process of steel structures while ensuring assembly accuracy, reducing the time spent on high-altitude operations, shortening the construction period, and reducing site occupation are urgent problems that those skilled in the art need to solve. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a unit steel column connection structure and method that facilitates high-altitude steel column connection and can reduce construction time.

[0006] The technical solution adopted by this invention to solve its technical problem is:

[0007] A unit steel column docking structure includes a first steel column located on the lower side and a second steel column located on the upper side. Two insertion columns are spaced apart on the first steel column, and two insertion holes are provided on the second steel column corresponding to the insertion columns. A first magnetic block is provided on each insertion column, and a first pull rope is fixed to the second steel column, through which a second magnetic block is suspended, with the second magnetic block positioned corresponding to the first magnetic block. At least one through hole is opened on the second steel column, and a rotating shaft is installed in the through hole via a bearing. The rotating shaft is located between the two insertion holes, and a limiting strip is fixed to the rotating shaft. The length of the limiting strip is greater than the distance between the two insertion holes. Initially, the limiting strip is vertical. After the two insertion columns are inserted, the rotating shaft rotates due to the magnetic attraction of the first magnetic blocks on both sides, and the limiting strip rotates to a horizontal position. As the insertion columns are inserted, the first magnetic block, the second magnetic block, and the insertion columns press against both sides of the limiting strip, pressing the limiting strip until both ends bend upwards and clamp the two insertion columns.

[0008] As a preferred embodiment, a further technical solution of the present invention is:

[0009] Preferably, the first steel column has two slots corresponding to the two insertion posts, the insertion posts are inserted into the slots and fixed by the first fastening bolts; the second steel column has a set of first threaded holes on both sides of each insertion hole, the first threaded holes extend to the insertion hole, and the first threaded holes are threaded with second fastening bolts; the insertion posts have second threaded holes on both sides corresponding to the second fastening bolts.

[0010] Preferably, a first pull rope is connected between the ends of the two second fastening bolts on both sides of each socket, and the second magnetic block is fixed at the middle position of the first pull rope.

[0011] Preferably, a second pull rope connects the two second magnetic blocks.

[0012] This invention also discloses a method for connecting unit steel columns, which utilizes a unit steel column connection structure. The specific steps are as follows:

[0013] S1: In the initial state, the limit bar is in a vertical state. Align the plug on the first steel column with the plug hole on the second steel column. The plug gradually approaches the plug hole, and the first magnetic block and the second magnetic block attract each other.

[0014] S2: After the two plugs are inserted, the shaft rotates due to the magnetic attraction of the first and second magnetic blocks on both sides, and the limit strip rotates to a horizontal state.

[0015] S3: The two second magnetic blocks work together to squeeze the two ends of the limiting strip for the first time, causing the limiting strip to bend.

[0016] S4: The two first magnetic blocks work together to squeeze the two ends of the limiting strip a second time, causing the limiting strip to bend further.

[0017] S5: The two plug-in pins work together to compress the two ends of the limiting strip for the third time, causing the limiting strip to bend once more;

[0018] S6: First, fix the first steel column and the second steel column using the second fastening bolts, and then weld them in place.

[0019] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art:

[0020] This invention, by configuring quick-connecting plug-in posts and holes on the first and second steel columns, not only enables rapid connection between the first and second steel columns, but also ensures that the limiting strip is bent three times during insertion, thus fixing the connection between the first and second steel columns. Furthermore, because the bent limiting strip is U-shaped, it is less likely for the first steel column to move away from the second steel column, thereby ensuring a more accurate connection between the first and second steel columns and reducing the likelihood of precision deviations. This achieves the effects of reducing the use of scaffolding, reducing the time spent working at heights, shortening the construction period, and reducing the space occupied. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main structure in an embodiment of the present invention when the first steel column is not inserted into the second steel column;

[0022] Figure 2 This is a schematic diagram of the main structure after the first steel column is inserted into the second steel column in an embodiment of the present invention;

[0023] Figure 3 This is a side view of the structure in an embodiment of the present invention when the first steel column is not inserted into the second steel column;

[0024] Figure 4 This is a side view of the structure after the first steel column is inserted into the second steel column in an embodiment of the present invention;

[0025] Figure 5 This is a top view of the structure after the first steel column is inserted into the second steel column in an embodiment of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. First steel column; 2. First fastening bolt; 3. Insertion column; 301. Second threaded hole; 4. First magnetic block; 5. Second steel column; 501. Insertion hole; 502. Through hole; 6. Second fastening bolt; 7. First pull rope; 8. Second magnetic block; 9. Rotating shaft; 10. Limiting strip. Detailed Implementation

[0027] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0028] like Figures 1 to 5 As shown in the figure, this embodiment provides a unit steel column docking structure, including a first steel column 1 located on the lower side and a second steel column 5 located on the upper side. The first steel column 1 has a plug-in column 3 on each of its left and right sides. The specific connection structure of the plug-in columns 3 is as follows: two slots are provided on the first steel column 1 corresponding to the two plug-in columns 3, and the plug-in columns 3 are inserted into the slots and fixed by a first fastening bolt 2; the second steel column 5 has two insertion holes 501 corresponding to the plug-in columns 3; a first magnetic block 4 is provided on the plug-in column 3, and the second steel column... A first pull rope 7 is fixed on the second steel column 5, and a second magnetic block 8 is suspended through the first pull rope 7. The position of the second magnetic block 8 corresponds to that of the first magnetic block 4. At least one through hole 502 is opened on the second steel column 5. A rotating shaft 9 is installed in the through hole 502 through a bearing. The rotating shaft 9 is located between two insertion holes 501. A limiting strip 10 is fixed on the rotating shaft 9. In this embodiment, three limiting strips 10 are fixed on the rotating shaft 9 in a star shape. The length of the limiting strip 10 is greater than the distance between the two insertion holes 501. The limiting strip 10 can be made of iron.

[0029] In the initial state, the limiting strip 10 is in a vertical state. After the two plugs 3 are inserted, the rotating shaft 9 rotates due to the magnetic attraction of the first magnetic block 4 and the second magnetic block 8 on both sides of the rotating shaft 9, and the limiting strip 10 rotates to a horizontal state. As the plugs 3 are inserted, the first magnetic block 4, the second magnetic block 8, and the plugs 3 squeeze the two sides of the limiting strip 10, squeezing the limiting strip 10 until both ends bend upwards into a U-shape, thus locking the plugs 3 on both sides.

[0030] To facilitate the later fixing of the first steel column 1 and the second steel column 5, a set of first threaded holes is provided on both sides of each insertion hole 501 on the second steel column 5. The first threaded holes extend through the insertion hole 501, and a second fastening bolt 6 is threaded onto the first threaded hole. The insertion post 3 is provided with second threaded holes 301 on both sides corresponding to the second fastening bolt 6. After the insertion post 3 is fully inserted into the insertion hole 501, the first threaded hole and the second threaded hole 301 are aligned, and the second steel column 5 and the limiting post are locked by the second fastening bolt 6.

[0031] The specific connection method of the second magnetic block 8 is as follows: Figure 1 , Figure 2 As shown, a first pull rope 7 is connected between the ends of the two second fastening bolts 6 on both sides of each socket 501, and a second magnetic block 8 is fixed at the middle position of the first pull rope 7.

[0032] like Figure 1 , Figure 4 As shown, the first magnetic block 4 is fixed to the top surface of the limiting post, and the two first magnetic blocks 4 are located on the two limiting posts, close to each other. To ensure that the two second magnetic blocks 8 are aligned with the two first magnetic blocks 4, a second pull rope is connected between the two second magnetic blocks 8. The second pull rope can be made of thin wire, and after the insertion post 3 is inserted into the insertion hole 501, the second pull rope is broken. Figure 1 , Figure 4 As shown, the first magnetic block 4 is fixed on the top surface of the limiting post, and the two first magnetic blocks 4 are located on two sides close to each other.

[0033] This invention also discloses a method for connecting unit steel columns, which utilizes a unit steel column connection structure. The specific steps are as follows:

[0034] S1: In the initial state, the limit bar 10 is in a vertical state. Align the plug 3 on the first steel column 1 with the plug hole 501 on the second steel column 5. The plug 3 gradually approaches the plug hole 501, and the first magnetic block 4 and the second magnetic block 8 attract each other.

[0035] S2: After the two plugs 3 are inserted, the shaft 9 rotates due to the magnetic attraction of the first magnetic block 4 and the second magnetic block 8 on both sides, and the limiting strip 10 rotates to a horizontal state.

[0036] S3: The two second magnetic blocks 8 work together to squeeze the two ends of the limiting strip 10 for the first time, causing the limiting strip 10 to bend.

[0037] S4: The two first magnetic blocks 4 work together to squeeze the two ends of the limiting strip 10 a second time, and the limiting strip 10 is further bent.

[0038] S5: The two plug-in pins 3 work together to compress the two ends of the limiting strip 10 for the third time, causing the limiting strip 10 to bend again.

[0039] S6: First, fix the first steel column 1 and the second steel column 5 using the second fastening bolt 6, and then weld them in place.

[0040] Using the unit steel column docking structure and docking method of this invention can accelerate the assembly process of steel structures while ensuring the accuracy of assembly. It can also reduce the use of scaffolding, reduce the time spent working at heights, shorten the construction period, reduce the occupation of the site, and reduce construction costs.

[0041] The second steel column is hoisted from the air, and the limiting column assists in the connection. The aerial assembly reduces the site occupation; there is no need to use the jacking method, which reduces the use of scaffolding; the assembly efficiency is accelerated and the project cost is reduced.

[0042] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A unit steel column butt joint structure including a first steel column located at a lower side and a second steel column located at an upper side, characterized in that: Two plug-in columns are arranged on the first steel column at intervals, and two insertion holes are arranged on the second steel column corresponding to the plug-in columns; A first magnetic block is arranged on the plug-in column, a first pull rope is fixed on the second steel column, and a second magnetic block is hung on the first pull rope through the first pull rope, and the position of the second magnetic block corresponds to the first magnetic block; At least one through hole is arranged on the second steel column, a rotating shaft is arranged in the through hole through a bearing, the rotating shaft is located between the two insertion holes, and a limiting strip is fixedly connected to the rotating shaft; The length of the limiting strip is greater than the distance between the two insertion holes; In the initial state, the limiting strip is in a vertical state, after the two plug-in columns are inserted, the rotating shaft is rotated under the magnetic attraction of the two first magnetic blocks, and the limiting strip is rotated to a horizontal state; With the insertion of the plug-in column, the first magnetic block, the second magnetic block and the plug-in column are pressed on both sides of the limiting strip, the limiting strip is pressed to bend upward at both ends, and the plug-in column is clamped on both sides; Two insertion slots are arranged on the first steel column corresponding to the two plug-in columns, the plug-in column is inserted into the insertion slot and is fixed by the first fastening bolt; A group of first threaded holes are arranged on both sides of each insertion hole on the second steel column, the first threaded hole penetrates the insertion hole, and a second fastening bolt is threadedly connected to the first threaded hole; Second threaded holes are arranged on both sides of the plug-in column corresponding to the second fastening bolt; The first pull rope is connected between the end portions of the two second fastening bolts on both sides of each insertion hole, and the second magnetic block is fixedly connected to the intermediate position of the first pull rope.

2. The unit steel column butt structure of claim 1, wherein: A second pull rope is connected between the two second magnetic blocks.

3. A method of butt joining unit steel columns, characterized by, The unit steel column butt joint structure in any one of claims 1 and 2 is applied, and the specific steps are as follows: S1: In the initial state, the limiting strip is in a vertical state, the plug-in column on the first steel column is aligned with the insertion hole on the second steel column, the plug-in column gradually approaches the insertion hole, and the first magnetic block and the second magnetic block are attracted to each other; S2: After the two plug-in columns are inserted, the rotating shaft is rotated under the magnetic attraction of the first magnetic block and the second magnetic block on both sides, and the limiting strip is rotated to a horizontal state; S3: Two second magnetic blocks act together to perform first extrusion on both ends of the limiting strip, and the limiting strip is bent; S4: Two first magnetic blocks act together to perform second extrusion on both ends of the limiting strip, and the limiting strip is further bent; S5: Two plug-in columns act together to perform third extrusion on both ends of the limiting strip, and the limiting strip is bent again; S6: The first steel column and the second steel column are preliminarily fixed by the second fastening bolt, and then welded and fixed.

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