Cavity column hoisting auxiliary tool and using method thereof

Abstract

The invention relates to a cavity column hoisting auxiliary tool and a using method thereof. The cavity column hoisting auxiliary tool comprises a pair of hoisting beams used for hoisting a cavity column. A pair of limiting buckles for mounting the hanging beam is arranged on the hanging beam; the hanging beam is provided with an auxiliary limiting assembly used for assisting in positioning the hanging beam. The auxiliary limiting assembly is used in cooperation with the limiting buckle, and a steel wire rope used for lifting the cavity column is arranged on the lifting beam. According to the cavity column lifting auxiliary tool, the double-lifting-beam design is adopted, a column bottom stress main rib is inserted in a symmetrical mode, the steel wire rope shrinks and tensions the two lifting beams in the lifting process, the two lifting beams clamp a steel rib in the middle, and the lifting beams and the column wall are limited and fixed at the two ends of the lifting beams through limiting buckles; the tool has the advantages that the whole tool is located in the center position in the lifting process, the thick-wall steel pipe is additionally arranged in the middle of the lifting beam to limit the steel wire rope, and therefore it is guaranteed that the steel wire rope and the cavity column are always kept in the vertical state in the lifting process, and follow-up butt joint installation of the cavity column is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building construction, in particular to a cavity column hoisting auxiliary tool and a using method thereof. BACKGROUND

[0002] With the rapid economic development, the construction technology is constantly improved, and the application of cavity columns in concrete frame structures is gradually popular. As an innovative structural component, cavity columns significantly improve the overall performance of buildings by optimizing material distribution. The hollow design reduces the self-weight by 20% to 30% while maintaining the bearing capacity, significantly reducing the amount of concrete and carbon emissions, and assisting green construction. The internal space can integrate pipelines or fill insulation materials, improving the functional integration of buildings. Modular production combined with prefabricated construction technology shortens the construction period by about 15%, reduces labor costs, and enhances quality controllability. In super high-rise and large-span buildings, cavity columns achieve precise adaptation of mechanical properties by flexibly adjusting the cross-sectional shape, and cooperate with shock absorption design to improve the seismic grade by 1-2 levels, becoming an important technical support for the low-carbon transformation and industrial upgrading of the construction industry.

[0003] However, in the existing construction process, cavity columns use a single channel steel as a hoisting beam for auxiliary hoisting. The lightweight design leads to poor wind stability, and under dynamic load, it is easy to produce deflection, causing the steel wire rope to deviate. Since the column component is in a horizontal stacking state when hoisting begins, the hoisting beam has no force on the column bottom, and the hoisting beam will deviate between the two cavity column steel bars, causing the verticality of the column component to deviate, making it difficult to meet the high-precision positioning requirements during hoisting.

[0004] Therefore, how to provide a cavity column hoisting auxiliary tool for the construction hoist to overcome the above-mentioned problems in the cavity column hoisting and installation process is a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0005] In order to solve the problem that cavity columns use a single channel steel as a hoisting beam for auxiliary hoisting, the lightweight design leads to poor wind stability, and under dynamic load, it is easy to produce deflection, causing the steel wire rope to deviate. Since the column component is in a horizontal stacking state when hoisting begins, the hoisting beam has no force on the column bottom, and the hoisting beam will deviate between the two cavity column steel bars, causing the verticality of the column component to deviate, making it difficult to meet the high-precision positioning requirements during hoisting, the present application provides a cavity column hoisting auxiliary tool and a using method thereof.

[0006] The cavity column hoisting auxiliary tool and the using method thereof provided by the present application adopt the following technical solutions: The utility model provides a cavity column hoisting auxiliary tool, including a pair of hoisting beam for cavity column hoisting, a pair of limiting buckle for installing hoisting beam is arranged on the hoisting beam, the auxiliary limiting component for assisting positioning hoisting beam is arranged on the hoisting beam, the auxiliary limiting component is used in cooperation with limiting buckle, the steel wire rope for cavity column hoisting is arranged on the hoisting beam.

[0007] By adopting the above technical scheme, the cavity column hoisting auxiliary tool adopts double-hoisting beam design, and is inserted into the main reinforcement at the bottom of the column in a symmetrical manner. In the hoisting process, the steel wire rope is contracted and tightened to clamp the two hoisting beams and the steel reinforcement in the middle. The limiting buckle at both ends of the hoisting beam limits and fixes the hoisting beam and the column wall, so that the tool is always in the center position in the hoisting process, thereby ensuring that the steel wire rope and the cavity column are always kept in a vertical state during hoisting, and facilitating the subsequent butt joint installation of the cavity column.

[0008] Preferably, the hoisting beam comprises a pair of channel steels for supporting hoisting; one end of the pair of channel steels opposite to each other is connected with a connecting welding plate for connecting the channel steels; the connecting welding plate is matched with the end face of the channel steel, and the thick-walled steel pipe for hoisting the steel wire rope is connected between the connecting welding plates.

[0009] By adopting the above technical scheme, the thick-walled steel pipe is installed in the middle of the channel steel. When the steel wire rope is wound around the hoisting beam, the gap between the two connecting welding plates can limit the steel wire rope. At the same time, the double-hoisting beam design and the thick-walled steel pipe in the hoisting beam limit the position of the hoisting beam and the steel wire rope during hoisting, so that the cavity column is kept in a vertical state during hoisting, facilitating its butt joint installation, reducing the construction difficulty, and shortening the construction period.

[0010] Preferably, the two channel steels and the thick-walled steel pipe in the middle are fixed by the connecting welding plate, and the width of the connecting welding plate is greater than the outer diameter of the thick-walled steel pipe.

[0011] By adopting the above technical scheme, the channel steel, the connecting welding plate and the thick-walled steel pipe are welded, so that they are connected firmly, are not easy to loosen, and can be integrated, so that they can be replaced to support and hoist the cavity column.

[0012] Preferably, one side of the channel steel outwardly is provided with a scale ruler for assisting installation of the hoisting beam; the scale ruler is used in cooperation with the limiting buckle.

[0013] By adopting the above technical scheme, the installation width of the cavity column is observed according to the scale ruler on the channel steel, so that the thick-walled steel pipe on the channel steel is located at the center position of the width, the installation positions of the two limiting buckles on the hoisting beam on the two channel steels are the same, and the steel wire rope is ensured to be located at the hoisting center during hoisting, thereby facilitating the vertical hoisting of the cavity column.

[0014] Preferably, the steel wire rope is arranged on the thick-walled steel pipe added in the middle of the channel steel, and the steel wire rope is located between the pair of connecting welding plates.

[0015] By adopting the technical scheme, the thick-walled steel pipe is added in the middle of the channel steel, the gap between the two connecting welding plates can limit the steel wire rope when the steel wire rope passes around the lifting beam, the round steel pipe is used to replace the channel steel, the abrasion of the steel wire rope in the lifting process is reduced, the breakage of the steel wire rope is effectively prevented, and the influence of hoisting the cavity column is reduced.

[0016] Preferably, the limiting buckle comprises a movable buckle member; the movable buckle member is arranged on the channel steel; and a fastening bolt for limiting and locking the movable buckle member is arranged on the movable buckle member.

[0017] By adopting the technical scheme, the lifting beam can be installed on the cavity column through cooperation of the movable buckle member and the fastening bolt, the lifting beam can stably work, the movement of the lifting beam on the cavity column is reduced, and the auxiliary hoisting of the cavity column is not affected.

[0018] Preferably, the movable buckle member is sleeved on the two ends of the lifting beam and can freely move; and the limiting buckle is installed on the lifting beam by adjusting the fastening bolt on the movable buckle member.

[0019] By adopting the technical scheme, the movable buckle member is sleeved on the two ends of the lifting beam and can freely move, the limiting buckle is installed on the lifting beam by adjusting the fastening bolt on the movable buckle member, after the limiting buckle is limited and fixed, the interval protruding part formed by the two movable buckle members on the lifting beam clamps the column wall of the cavity column in the middle, and the movement of the lifting beam is limited.

[0020] Preferably, the auxiliary limiting assembly comprises an adjusting stud; the adjusting stud is threadedly connected with the lifting beam; an auxiliary supporting plate for assisting in positioning the lifting beam is rotationally connected to one end of the adjusting stud; one side of the auxiliary supporting plate is in contact with the main reinforcement close to the outer side of the cavity column; the other end of the adjusting stud is provided with a rotating disc for adjusting the rotation of the adjusting stud, and the rotating disc is located in the gap between the adjacent two main reinforcements.

[0021] By adopting the technical scheme, when the lifting beam is installed, the lifting beam is symmetrically inserted between the main reinforcements on the cavity column, one side of the lifting beam is in contact with the main reinforcement, then the rotating disc is rotated, the adjusting stud drives the auxiliary supporting plate to move, the auxiliary supporting plate is in contact with the main reinforcement on the other side of the lifting beam, the auxiliary supporting plate supports the lifting beam, the lifting beam is kept in contact with the main reinforcement, the sliding of the lifting beam is reduced, and the installation of the lifting beam is symmetrical and stable.

[0022] Preferably, the cross section of the channel steel can be appropriately reduced under the premise that the overall tooling bearing capacity meets the hoisting needs.

[0023] By adopting the technical scheme, the cross section of each hoisting beam can be appropriately reduced, the hoisting beam is beneficial to being inserted between the steel bars with a closer distance, the application range is more extensive, and after the construction is completed, the hoisting beam can be disassembled and reused, material consumption is reduced, and cost is reduced.

[0024] Preferably, a method for using the cavity column hoisting auxiliary tooling, characterized by comprising the following steps: S1: before hoisting the cavity column, two hoisting beams are symmetrically inserted between the steel bars at the bottom of the column; S2: the position of the hoisting beam is observed and adjusted through the scale on the hoisting beam to ensure that the thick-walled steel pipe in the middle of the hoisting beam is at the center position of the cavity column, and the loose buckle member is installed to closely adhere to the cavity column wall, so that the positions of the two loose buckle members on the hoisting beam are the same; S3: the rotating disc of the auxiliary limiting assembly on the hoisting beam is rotated to adjust the position of the auxiliary supporting plate, so that the auxiliary supporting plate is in contact with the main reinforcement near the outer side of the cavity column, one side of the hoisting beam is kept in close contact with the main reinforcement on the adjacent inner side, the installation of the two hoisting beams is ensured to be horizontal and symmetrical, and then the fastening bolts are tightened; S4: the steel wire rope is passed through the bottom of the two hoisting beams and then wound out of the column head to be fixed, and the hoisting work of the cavity column can be started.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The cavity column hoisting auxiliary tooling adopts a double-hoisting-beam design, is symmetrically inserted into the main reinforcement at the column bottom, the steel wire rope is contracted and tightened to clamp the two hoisting beams and the steel bars in the middle during hoisting, the hoisting beam is limited and fixed at both ends by the limiting buckle to ensure that the tooling is in the center position during hoisting, and the thick-walled steel pipe and the connecting welding plate in the middle of the hoisting beam limit the steel wire rope, so that the steel wire rope and the cavity column always maintain a vertical state during hoisting, and the subsequent butt joint installation of the cavity column is facilitated; 2. Compared with the single-hoisting-beam hoisting mode, while ensuring that the overall bearing capacity of the tooling meets the hoisting needs of the cavity column, the cross section of each hoisting beam can be appropriately reduced, the hoisting beam is beneficial to being inserted between the steel bars with a closer distance, the application range is more extensive, and after the construction is completed, the hoisting beam can be disassembled and reused, material consumption is reduced, and cost is reduced; 3. When the hoisting beam is installed, the hoisting beam is symmetrically inserted between the main reinforcement on the cavity column, one side of the hoisting beam is in contact with the main reinforcement, then the rotating disc is rotated, the adjusting stud drives the auxiliary supporting plate to move, the auxiliary supporting plate is in contact with the main reinforcement on the other side of the hoisting beam, the auxiliary supporting plate is in contact and supports, the hoisting beam and the main reinforcement always maintain contact, the sliding of the hoisting beam is reduced, and the installation of the hoisting beam is ensured to be symmetrical and stable. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a perspective view of the front face during the hoisting of the cavity column hoisting auxiliary tooling; Figure 2 is a bottom lifting structure perspective view of the cavity column lifting auxiliary tool in the lifting process; Figure 3 is a front elevation section perspective view of the cavity column lifting auxiliary tool in the lifting process; Figure 4 is a perspective view of the double lifting beam structure; Figure 5 is a lying section perspective view of the cavity column lifting auxiliary tool in the lifting process; Figure 6 is a perspective view of the single lifting beam structure; Figure 7 is Figure 2 a right view section perspective view of the cavity column lifting auxiliary tool.

[0027] Reference signs: 100, cavity column; 110, column body; 120, main reinforcement; 200, lifting beam; 210, channel steel; 220, connecting welding plate; 230, thick-walled steel pipe; 240, scale; 300, limiting buckle; 310, movable buckle component; 320, fastening bolt; 400, auxiliary limiting assembly; 410, adjusting stud; 420, rotating disc; 430, auxiliary support plate; 500, steel wire rope. DETAILED DESCRIPTION

[0028] The following will be described in detail with reference to the accompanying drawings. Figure 1 The accompanying drawings are provided to further illustrate the present application. Figure 7 The present application will be further described in detail.

[0029] The embodiments of the present application disclose a cavity column lifting auxiliary tool and a using method thereof.

[0030] Reference Figure 1 and Figure 2 , a cavity column lifting auxiliary tool comprises two lifting beams 200 and limiting buckles 300 at both ends of the lifting beams 200; wherein Figure 2As shown, the hanging beam 200 includes two channel steels 210, a connecting welding plate 220 and a thick-walled steel pipe 230, and the opposite ends of the two channel steels 210 are welded with the connecting welding plate 220; meanwhile, the side of the connecting welding plate 220 away from the channel steel 210 is welded with the thick-walled steel pipe 230, and the limiting buckle 300 includes a movable buckle member 310 and a fastening bolt 320; the movable buckle member 310 is sleeved on the channel steel 210 of the hanging beam 200, and the fastening bolt 320 is threadedly connected with the movable buckle member 310; meanwhile, the cavity column 100 includes a main reinforcement 120 and a column body 110; two hanging beams 200 pass through the main reinforcement 120 of the column bottom stress of the cavity column 100; then the movable buckle member 310 of the limiting buckle 300 is sleeved on the two ends of the channel steel 210 of the hanging beam 200; the channel steel 210 of the hanging beam 200 is adjusted and clamped by the fastening bolt 320; the hanging beam 200 is installed and limited on the cavity column 100 by the limiting buckle 300; then the steel wire rope 500 for hoisting is passed into the inner wall of the column body 110 from the column top of the cavity column 100, bypasses the thick-walled steel pipe 230 on the two hanging beams 200, and is fixed again after being wound out of the column top, the hoisting of the cavity column 100 is completed, and the installation work is completed, meanwhile, by means of the thick-walled steel pipe 230 in the hanging beam 200 and a pair of hanging beams 200, the positions of the hanging beam 200 and the steel wire rope 500 in the hoisting process are limited, the cavity column 100 is in a vertical state in the hoisting process, the butt joint installation is facilitated, the construction difficulty is reduced, and the construction period is shortened.

[0031] Reference Figure 2 When the hoisting auxiliary tool is hoisted, two hanging beams 200 are used for hoisting; while the bearing capacity of the tool meets the hoisting requirements of the cavity column 100, the cross-sectional area of the channel steel 210 of the hanging beam 200 can be appropriately reduced, so that the channel steel 210 can more easily pass through the main reinforcement 120 of the column bottom stress of the cavity column 100, the channel steel 210 is difficult to pass through due to the small spacing of the main reinforcement 120 of the column bottom stress, thereby affecting the hoisting efficiency of the cavity column 100, and the hoisting auxiliary tool has better versatility.

[0032] Reference Figure 3 and Figure 4The hoisting auxiliary tool is composed of a single hoisting beam 200 by fixing and connecting a pair of channel steels 210 at opposite ends of the hoisting beam 200 through thick-walled steel pipes 230 and connecting welding plates 220 by welding; the connecting welding plates 220 are matched with end surfaces of the channel steels 210, the center position of the connecting welding plates 220 is aligned with the center position of the thick-walled steel pipes 230, and the width of the connecting welding plates 220 is greater than the outer diameter of the thick-walled steel pipes 230; the thick-walled steel pipes 230 are located at the middle position of the hoisting beam 200, and the thick-walled steel pipes 230 and the connecting welding plates 220 on both sides limit the wire rope 500 when the wire rope 500 passes through the hoisting beam 200, so as to ensure that the wire rope 500 is always located at the middle position of the hoisting beam 200, and the thick-walled steel pipes 230 can replace the channel steels 210 to reduce friction with the wire rope 500, thereby reducing the abrasion of the wire rope 500 caused by the hoisting beam 200 during hoisting.

[0033] Reference Figure 4 And Figure 5 The fastening bolt 320 in the limiting buckle 300 is screwed through the screw hole at the top of the movable buckle member 310, the top end of the fastening bolt 320 is connected with a nut, and the bottom end of the fastening bolt 320 is connected with a gasket, so that the fastening bolt 320 cannot be detached from the movable buckle member 310; the channel steel 210 is welded with a scale 240 for installation on the outer side; the scale 240 is used in cooperation with the limiting buckle 300, the installation width of the cavity column 100 is observed according to the scale 240 on the channel steel 210, the thick-walled steel pipe 230 on the channel steel 210 is located at the center position of the width, the installation positions of the two limiting buckles 300 on the two channel steels 210 are the same, and the wire rope 500 is located at the hoisting center during hoisting, so as to facilitate the vertical hoisting of the cavity column 100.

[0034] Reference Figure 5 And Figure 6 The channel steel 210 of the hoisting beam 200 is additionally provided with a limiting buckle 300 at both ends, and the interval protruding part formed by the two movable buckle members 310 on the hoisting beam 200 clamps the column body 110 of the cavity column 100 in the middle to limit the movement of the hoisting beam 200, so that the limiting buckle 300 tightly clamps the outer wall of the column body 110 of the cavity column 100, preventing the hoisting beam 200 from moving along the length direction of the hoisting beam 200 during hoisting, and further causing the wire rope 500 to deviate from the center of the column body 110 of the cavity column 100.

[0035] Reference Figure 6The friction force exerted on the channel steel 210 of the hoisting beam 200 by the fastening bolt 320 enables the loose buckle member 310 to be mounted on the channel steel 210 through the friction force between the fastening bolt 320 and the channel steel 210, and a detachable connection is formed between the loose buckle member 310 and the channel steel 210, so that flexible disassembly can be achieved, the operation is simple and convenient, the hoisting of the cavity column 100 can be used multiple times, and therefore the material consumption in the construction process is minimized, and the construction cost is further saved.

[0036] With reference to Figure 6 and Figure 7 , the hoisted channel steel 210 is threadedly connected with an adjusting stud 410; one end of the adjusting stud 410 is rotationally connected with an auxiliary support plate 430 for assisting in positioning the hoisting beam 200; the other end of the adjusting stud 410 is connected with a rotating disc 420 for adjusting the rotation of the adjusting stud 410; the rotating disc 420 is rotated to enable the adjusting stud 410 to drive the auxiliary support plate 430 to move, so that the auxiliary support plate 430 abuts against the outer side stressed main reinforcement 120 on the cavity column 100, and the side of the channel steel 210 away from the auxiliary support plate 430 always maintains contact with the inner side main reinforcement 120 adjacent to the outer side stressed main reinforcement 120, so that the channel steel 210 is abutted and limited, the position of the hoisting beam 200 between the two rows of adjacent main reinforcements 120 is unchanged, the contact between the hoisted channel steel 210 and the main reinforcement 120 is stable, and when the distance between the two rows of main reinforcements 120 is large, the hoisting beam 200 is prevented from sliding during installation, so that the influence on the installation of the hoisting beam 200 is reduced, the symmetrical and stable installation of the hoisting beam 200 is ensured, and the influence on the hoisting of the cavity column 100 is avoided.

[0037] The use method of the cavity column 100 hoisting auxiliary tool includes the following steps: Firstly, before hoisting the cavity column 100, two hoisting beams 200 are symmetrically inserted between the main reinforcements 120 at the bottom of the column; the hoisting beam 200 is in contact with the column body 110 on the cavity column 100, and the limiting buckle 300 is sleeved on the hoisting beam 200 for preparation of installation.

[0038] Secondly, the position of the hoisting beam 200 is observed and adjusted through the scale 240 on the hoisting beam 200, so that the symmetrical position of the thick-walled steel pipe 230 in the middle of the hoisting beam 200 is at the symmetrical center position of the cavity column 100, the loose buckle member 310 is installed to be close to the column wall of the cavity column 100, and the positions of the two loose buckle members 310 on the hoisting beam 200 are the same; and the cavity column 100 can be kept in a vertical state after being hoisted.

[0039] Third step, rotate the auxiliary limiting assembly 400 on the beam 200 rotating disc 420, adjust the position of the auxiliary support plate 430, make the auxiliary support plate 430 contact with the main reinforcement 120 close to the outside of the cavity column 100, make the side of the beam 200 away from the auxiliary support plate 430 contact with the main reinforcement 120 away from the auxiliary support plate 430, make the position of the beam 200 between two adjacent main reinforcement 120 unchanged, ensure that the two beams 200 are installed horizontally symmetrically, and then tighten the fastening bolt 320; thereby ensuring that the beam 200 does not slide during lifting, and ensuring that the cavity column 100 remains vertical during lifting.

[0040] The last step is to pass the steel wire rope 500 through the column top of the cavity column 100 to the bottom of the two beams 200, and then wind out of the column head and the hook on the lifting device for fixation, and then the lifting work of the cavity column 100 can be started.

[0041] The implementation principle of the embodiment of the application is as follows: before the cavity column 100 is lifted, two beams 200 are symmetrically passed through the two adjacent main reinforcement 120 between the column bottom below the cavity column 100, the position of the thick-walled steel pipe 230 is adjusted to be on the center line of the cross section of the cavity column 100, then the movable buckle member 310 of the limiting buckle 300 is respectively sleeved on both ends of the beam 200 channel steel 210 of the two beams 200, the position of the pair of movable buckle members 310 on the beam 200 is adjusted through the scale 240 on the channel steel 210, so that the pair of movable buckle members 310 are symmetrical on the beam 200, the fastening bolt 320 on the top is adjusted to tightly press the channel steel 210 on the beam 200, the beam 200 is installed on the cavity column 100, then the rotating disc 420 on the auxiliary limiting assembly 400 on the beam 200 is rotated, the position of the auxiliary support plate 430 is adjusted, the auxiliary support plate 430 contacts with the main reinforcement 120 close to the outside of the cavity column 100, the side of the beam 200 away from the auxiliary support plate 430 contacts with the main reinforcement 120 away from the auxiliary support plate 430, it is ensured that the two beams 200 are installed horizontally symmetrically, then the fastening bolt 320 is tightened, the movable buckle member 310 and the channel steel 210 of the beam 200 are fixed and assembled in a detachable manner through the friction force, the beam 200 is installed on the cavity column 100 by the limiting buckle 300, the steel wire rope 500 for lifting is passed into the inner wall of the column body 110 from the top of the cavity column 100, then wound around the thick-walled steel pipe 230 of the two beams 200 and fixed again, the steel wire rope 500 is slowly pulled, the cavity column 100 is lifted for installation work, after the bottom reinforcement of the cavity column 100 is fixed and connected with the lower sleeve, the steel wire rope 500 is pulled out, the fastening bolt 320 is loosened, the movable buckle member 310 is removed, and the beam 200 is pulled out in sequence, thereby completing the lifting and installation of the cavity column 100.

[0042] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A cavity column lifting auxiliary tool, characterized in that: The invention comprises a pair of lifting beams (200) for lifting a cavity column (100); a pair of limiting buckles (300) for installing the lifting beams (200) are provided on the lifting beams (200); an auxiliary limiting assembly (400) for assisting in positioning the lifting beams (200) is provided on the lifting beams (200); the auxiliary limiting assembly (400) is used in conjunction with the limiting buckles (300); and a steel wire rope (500) for lifting the cavity column (100) is provided on the lifting beams (200).

2. The hollow column lifting auxiliary tool according to claim 1, characterized in that: The lifting beam (200) includes a pair of channel steels (210) for supporting lifting; opposite ends of the pair of channel steels (210) are connected to connecting welding plates (220) for connecting the channel steels (210); the connecting welding plates (220) are adapted to the end faces of the channel steels (210), and a thick-walled steel pipe (230) for lifting a steel wire rope (500) is connected between the connecting welding plates (220).

3. The hollow column lifting auxiliary tool according to claim 2, characterized in that: The two sections of channel steel (210) and the thick-walled steel pipe (230) in the middle are welded and fixed via a connecting welding plate (220), and the width of the connecting welding plate (220) is greater than the outer diameter of the thick-walled steel pipe (230).

4. The hollow column lifting auxiliary tool according to claim 2, characterized in that: A scale (240) for assisting in the installation of the hanging beam (200) is provided on an outward side of the channel steel (210); the scale (240) is used in conjunction with a limit buckle (300).

5. The hollow column lifting auxiliary tool according to claim 2, characterized in that: The steel wire rope (500) is arranged on a thick-walled steel pipe (230) installed in the middle of the channel steel (210), and the steel wire rope (500) is located between a pair of connecting welding plates (220).

6. The hollow column lifting auxiliary tool according to claim 2, characterized in that: The limiting buckle (300) comprises a snap-fit ​​component (310); the snap-fit ​​component (310) is arranged on the channel steel (210); and a fastening bolt (320) for limiting and locking the snap-fit ​​component (310) is provided on the snap-fit ​​component (310).

7. The hollow column lifting auxiliary tool according to claim 6, characterized in that: The movable buckle component (310) is sleeved on both ends of the hanging beam (200) and can move freely; the limiting buckle (300) is installed on the hanging beam (200) by adjusting the fastening bolts (320) on the movable buckle component (310).

8. The hollow column lifting auxiliary tool according to claim 1, characterized in that: The auxiliary limiting assembly (400) includes an adjusting stud (410); the adjusting stud (410) is threadedly connected to the suspension beam (200); one end of the adjusting stud (410) is rotatably connected to an auxiliary support plate (430) for assisting in positioning the suspension beam (200); one side of the auxiliary support plate (430) is in contact with the main reinforcement (120) on the cavity column (100) close to the outside, and the other end of the adjusting stud (410) is provided with a turntable (420) for rotating the adjusting stud (410), and the turntable (420) is located in the gap between two adjacent main reinforcements (120).

9. The hollow column lifting auxiliary tool according to claim 2, characterized in that: The cross section of the channel steel (210) can be appropriately reduced while ensuring that the overall tooling load-bearing capacity meets the lifting requirements.

10. A method for using the hollow column lifting auxiliary tooling according to claims 1-9, characterized in that The following steps are involved: S1: Before lifting the cavity column (100), two lifting beams (200) are symmetrically inserted between the main reinforcements (120) at the bottom of the column; S2: Observe and adjust the position of the hanging beam (200) by using the scale (240) on the hanging beam (200) to ensure that the thick-walled steel pipe (230) in the middle of the hanging beam (200) is located at the center of the cavity column (100), and install the snap-fit ​​member (310) close to the column wall of the cavity column (100) so that the two snap-fit ​​members (310) are in the same position on the hanging beam (200); S3: rotating the turntable (420) of the auxiliary limiting assembly (400) on the hanging beam (200), adjusting the position of the auxiliary support plate (430), so that the auxiliary support plate (430) contacts the main reinforcement (120) close to the outside of the cavity column (100), so that one side of the hanging beam (200) is kept in contact with the adjacent inner main reinforcement (120), ensuring that the two hanging beams (200) are installed horizontally and symmetrically, and then tightening the fastening bolts (320); S4: The wire rope (500) is passed through the bottom of the two lifting beams (200) and then looped around the column head again to fix it, and then the hoisting work of the cavity column (100) can be started.

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