Combined device for hoisting and mounting SPCS prefabricated column and construction method

Abstract

The invention provides a combined device for hoisting and mounting an SPCS prefabricated column and a construction method, and relates to the technical field of assembly type structure assembly. Comprising an alignment tool arranged at the bottom of the prefabricated column, the alignment tool can support and limit the prefabricated column in the process that the prefabricated column is hoisted from a horizontal state to a vertical state, the hoisting process of the prefabricated column is stable, loads are evenly distributed in the alignment tool, and bending of a main rib at the bottom of the prefabricated column is prevented. The two ends of the lifting beam tool are clamped to the front side face and the rear side face of the prefabricated column through the lifting lug side clamping pieces correspondingly, the lifting beam tool can be limited, and overall left-right sliding or overturning is avoided. The balance tool is used for limiting the position of the steel wire rope, it is guaranteed that the steel wire rope is located in the center of the prefabricated column in the hoisting and hoisting process, the steel wire rope is prevented from shaking in the prefabricated column, and hoisting stability and rapidness are guaranteed. The mounting speed of the prefabricated column can be effectively increased through the synergistic effect of the three parts, and other hoisting tools are not needed.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated structure assembly, and in particular to a combined device and a construction method for lifting and installing a SPCS prefabricated column. Background Art

[0002] Prefabricated structures are widely used in various fields due to their advantages such as high efficiency, environmental protection and energy saving. The prefabricated integral composite structure system, namely the "SPCS structure system", is a composite concrete prefabricated structure developed by Sany Construction.

[0003] In the existing technology, during the assembly process of the SPCS structural system, it is necessary to select appropriate lifting equipment and lifting tools to perform lifting according to the number and position of the components. On the one hand, the assembly efficiency is low and it may not reach the minimum assembly rate of the building. On the other hand, the assembly process is prone to deformation of components, especially columnar components, which are prone to bending of the bottom main reinforcement during the assembly process.

[0004] In view of this, how to provide a SPCS structural system assembly device that can improve assembly efficiency and avoid component deformation is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] The object of the present invention is to provide a combined device and a construction method for lifting and installing SPCS prefabricated columns to solve the problems existing in the prior art.

[0006] To achieve the above object, the present invention provides a combined device for lifting and installing a SPCS prefabricated column, wherein the prefabricated column is lifted from a horizontal state to a vertical state, comprising:

[0007] The auxiliary alignment tool is arranged at the bottom of the prefabricated column. When the prefabricated column is lifted from a horizontal state to a vertical state, the auxiliary alignment tool can support and limit the prefabricated column.

[0008] Furthermore, the auxiliary correction tooling includes:

[0009] The base square steel pipe is arranged along the Y axis, and the two ends thereof are provided with side square steel pipes along the X axis direction;

[0010] A connecting channel steel is arranged in the middle of the square steel pipe of the base along the X-axis direction;

[0011] The main steel support is arranged on the connecting channel steel along the Z-axis direction;

[0012] The stress-bearing channel steel is arranged on the side of the main steel support close to the square steel pipe of the base;

[0013] A top clamp, arranged on the top surface of the main steel support along the X-axis direction;

[0014] A balancing channel steel is arranged on a side of the top clamp away from the base square steel tube, and the end surface of the balancing channel steel away from the base square steel tube is flush with the flank square steel tube;

[0015] When the prefabricated column is in a horizontal state, a wooden block is arranged between the prefabricated column and the ground, and the wooden block is close to the bottom surface of the prefabricated column; the base square steel pipe and the side wing square steel pipe are in contact with the wooden block and the bottom surface of the prefabricated column, the top card is in contact with the side of the prefabricated column away from the ground, and the load-bearing surface channel steel is in contact with the bottom surface of the prefabricated column.

[0016] Furthermore, there are at least two stress-bearing surface channel steels, which are respectively arranged close to the upper end and the lower end of the main steel support.

[0017] Furthermore, it also includes: a beam hanging tool, the beam hanging tool includes:

[0018] The main support steel is arranged along the Y axis, and the two ends thereof are provided with lifting ear side clamps along the X axis direction;

[0019] The main supporting steel is in contact with the bottom surface of the prefabricated column, and the ear side clamps are in contact with the front and rear side surfaces of the prefabricated column respectively; the main supporting steel has a lifting area, the steel wire rope passes through the prefabricated column from the top surface of the prefabricated column and extends from the bottom surface of the prefabricated column, the steel wire rope has a lifting ring, and the lifting ring is lifted on the lifting area.

[0020] Furthermore, the ear-side clamp extends in the Z-axis direction to form a lifting ring connecting portion, and the lifting ring connecting portion is provided with a lifting hole.

[0021] Furthermore, a rubber belt is provided on the outer surface of the lifting area.

[0022] Furthermore, a balancing tool is also included, and the balancing tool includes:

[0023] A balance beam is arranged along the Y axis, and limit clamps are arranged at both ends along the X axis direction, and a first through hole is arranged through the middle of the balance beam;

[0024] The balance beam contacts the top surface of the prefabricated column, the limit card contacts the front and rear side surfaces of the prefabricated column respectively, and the steel wire rope enters the prefabricated column from the first through hole.

[0025] Furthermore, the balance beam is penetrated by a second through hole near one or both ends, the first through hole and the second through hole are arranged at intervals, a plurality of stirrups are arranged inside the prefabricated column along the length direction, and the stirrups penetrate the second through hole; the main steel support and the load-bearing surface channel steel are both arranged at intervals from the stirrups.

[0026] The present invention also provides a construction method for lifting and installing a SPCS prefabricated column, and using the combined device for lifting and installing a SPCS prefabricated column, the method comprises the following steps:

[0027] S1: Arrange a woodwork shop on the ground and place the prefabricated columns horizontally on the woodwork shop;

[0028] S2: Move the balancing tool to the top surface of the prefabricated column so that the balancing beam contacts the top surface of the prefabricated column, and the limit clips are respectively clamped on the front and rear sides of the prefabricated column;

[0029] S3: inserting a steel wire rope through the first through hole of the balance beam, and then passing the steel wire rope through the inside of the prefabricated column along the length direction of the prefabricated column, and the steel wire rope passes through the bottom surface of the prefabricated column;

[0030] S4: Move the lifting beam tooling to the bottom surface of the prefabricated column, put the lifting ring on the wire rope into the main supporting steel and move it to the lifting area of ​​the main supporting steel; the main supporting steel is in contact with the bottom surface of the prefabricated column, and the side clamps of the lifting ear are clamped on the front and rear sides of the prefabricated column respectively;

[0031] S5: Move the auxiliary straightening tooling to the bottom surface of the precast column, so that the base square steel tube and the side wing square steel tube are in contact with the bottom surface of the wood workshop and the precast column, the top clamp is stuck on the side of the precast column away from the ground, and the load-bearing surface channel steel is in contact with the bottom surface of the precast column;

[0032] S6: Use the hoisting wire rope to lift the prefabricated column and lift the prefabricated column from a horizontal state to a vertical state.

[0033] The present invention discloses the following technical effects:

[0034] 1. The auxiliary straightening tooling is used to support and limit the prefabricated column during the process of lifting it from a horizontal state to a vertical state. The lifting process of the prefabricated column is stable, and the load is evenly distributed in the auxiliary straightening tooling, which is helpful to prevent the main reinforcement at the bottom of the prefabricated column from bending.

[0035] 2. The hanging beam fixture is a load-bearing component during lifting, hoisting and installation. Its two ends are respectively clamped on the front and rear sides of the prefabricated column through the side clamps of the lifting ears, which can limit the hanging beam fixture to prevent the overall sliding left and right or turning over.

[0036] 3. The balancing tool is used to limit the position of the wire rope to ensure that the wire rope is located at the center of the prefabricated column during lifting and hoisting, prevent the wire rope from shaking inside the prefabricated column, and ensure the stability and speed of lifting.

[0037] 4. Through the synergistic effect of auxiliary tooling, beam hoisting and balancing work, the installation speed of prefabricated columns can be effectively improved. The hoisting of a prefabricated column can be completed in about 20 minutes, and no other lifting tools are needed. It has good application prospects and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 This is a schematic diagram of the auxiliary tooling structure;

[0040] Figure 2 It is the front view of the auxiliary tooling;

[0041] Figure 3 This is a schematic diagram of the structure of the hanging beam tooling;

[0042] Figure 4 It is a schematic diagram of the balanced working structure;

[0043] Figure 5 This is a schematic diagram of the hoisting of prefabricated columns;

[0044] Among them, 1. Auxiliary tooling; 101. Square steel pipe of base; 102. Square steel pipe of side wing; 103. Connecting channel steel; 104. Main steel support; 105. Load-bearing surface channel steel; 106. Top clamp; 107. Balance channel steel; 2. Prefabricated column; 3. Hanging beam tooling; 301. Main supporting steel; 302. Side clamp of lifting ear; 3021. Lifting ring connection; 3022. Lifting hole; 303. Rubber belt; 4. Steel wire rope; 5. Balance tooling; 501. Balance beam; 5011. First through hole; 5012. Second through hole; 502. Limiting clamp; 6. Stirrups; 7. Wooden workshop. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0047] An embodiment of the present invention provides a combined device for lifting and installing SPCS prefabricated columns. The prefabricated column 2 is lifted from a horizontal state to a vertical state. The entire device is made of Q235 steel and includes: an auxiliary alignment tool 1, which is arranged at the bottom of the prefabricated column 2. During the process of lifting the prefabricated column 2 from a horizontal state to a vertical state, the auxiliary alignment tool 1 can support and limit the prefabricated column 2.

[0048] In this embodiment, the auxiliary straightening tool 1 is an important device for assisting the prefabricated column 2 to straighten from a flat position during lifting. The auxiliary straightening tool 1 includes: a base square steel pipe 101, which is arranged along the Y-axis, and side square steel pipes 102 are arranged at both ends along the X-axis direction; the base square steel pipe 101 and the side square steel pipe 102 are made of 10# square steel pipes fully welded, and the wall thickness of the steel pipe is t≥6mm. The base square steel pipe 101 is designed to have a length of F1=900mm according to the size of the prefabricated column 2 (800×800mm), and the side square steel pipe 102 has a length of F2=400mm. The connecting channel steel 103 is arranged in the middle of the base square steel tube 101 along the X-axis direction; the main steel support 104 is arranged on the connecting channel steel 103 along the Z-axis direction; the stress surface channel steel 105 is arranged on the side of the main steel support 104 close to the base square steel tube 101, and there are at least two stress surface channel steels 105, which are arranged close to the upper and lower ends of the main steel support 104 respectively. In the process of hoisting the prefabricated column 2 from the horizontal state to the vertical state, the load is mainly concentrated on the upper and lower ends of the main steel support 104. Therefore, in this embodiment, the stress surface channel steel 105 is arranged at the corresponding position to bear the load. The length of the main steel support 104 is designed to be 775mm (the length of the column section minus the length of the protective layer). The connecting channel steel 103 is 150 mm long, the bearing surface channel steel 105 at the bottom is flush with the upper surface of the base square steel tube 101, and the bearing surface channel steel 105 at the top is flush with the upper surface of the main steel support 104, and the bearing surface channel steel 105 is 150 mm long. The top clamp 106 is welded and arranged on the top surface of the main steel support 104 along the X-axis direction, and the top clamp 106 is 500 mm long; the balancing channel steel 107 is arranged on the side of the top clamp 106 away from the base square steel tube 101, and the balancing channel steel 107 is 100 mm away from the main steel support 104. The end surface of the balancing channel steel 107 away from the base square steel tube 101 is flush with the wing square steel tube 102, and the length of the balancing channel steel 107 is 800 mm. In this embodiment, the main steel support 104, the connecting channel steel 103, the bearing surface channel steel 105, the top clamp 106 and the balancing channel steel 107 are all made of 10# channel steel. When the prefabricated column 2 is in a horizontal state, a wooden block 7 is arranged between the prefabricated column 2 and the ground, and the wooden block 7 is close to the bottom surface of the prefabricated column 2; the base square steel pipe 101 and the side wing square steel pipe 102 are in contact with the wooden block 7 and the bottom surface of the prefabricated column 2, the top card 106 is in contact with the side of the prefabricated column 2 away from the ground, and the load-bearing surface channel steel 105 is in contact with the bottom surface of the prefabricated column 2.

[0049] In this embodiment, the lifting beam fixture 3 is a load-bearing component during lifting, hoisting and installation, and is made entirely of 10# channel steel. The lifting beam fixture 3 includes: a main supporting steel 301, which is arranged along the Y axis, and its two ends are provided with lifting ear side clamps 302 along the X axis direction. The lifting ear side clamps 302 are composed of two mutually perpendicular 10# channel steels, one of which is used as a lifting ring connection part 3021. The lifting ring connection part 3021 on one side of the main supporting steel 301 is designed to be 150mm, and a 25mm lifting hole 3022 is provided. The lifting ring connection part 3021 on the other side is designed to be 100mm, and the other two channel steels of the lifting ear side clamps 302 are both 100mm. The main supporting steel 301 is designed to be 840mm long and has a rectangular cross-section for easy lifting. The main supporting steel 301 is in contact with the bottom surface of the precast column 2, and the lifting ear side clamps 302 are in contact with the front and rear side surfaces of the precast column 2 respectively, to limit the overall left and right sliding or flipping of the main supporting plate. The main supporting steel 301 has a lifting area, and the steel wire rope 4 passes through the precast column 2 from the top surface and extends from the bottom surface of the precast column 2. The steel wire rope 4 has a hanging ring, which is hoisted on the lifting area. The lifting area is the main stress point, and a 120mm wide rubber belt 303 is set on its outer surface to prevent the steel wire rope 4 from being worn by the positive angle of the channel steel and causing the steel wire to tear.

[0050] In this embodiment, the balancing tool 5 is used to limit the position of the steel wire rope 4. The balancing tool 5 includes: a balancing beam 501, which is arranged along the Y axis, and the two ends of the balancing beam 501 are provided with limit clamps 502 along the X axis direction. The balancing beam 501 and the limit clamps 502 at both ends are made of 10# channel steel. The length of the balancing beam 501 is 840mm, and the length of the limit clamps 502 is 150mm. A first through hole 5011 is provided through the middle of the balancing beam 501. The first through hole 5011 is a rectangular hole with a length of 100mm and a width of 40mm. The edges of the hole are polished or welded with round steel to prevent the steel wire rope 4 from being worn. A second through hole 5012 is provided through the balancing beam 501 at a position 25mm away from the two ends. The balancing beam 501 is in contact with the top surface of the prefabricated column 2, and the limit clamps 502 are in contact with the front and rear sides of the prefabricated column 2 respectively. The steel wire rope 4 enters the prefabricated column 2 from the first through hole 5011. A plurality of stirrups 6 are arranged inside the prefabricated column 2 along the length direction, and the stirrups 6 pass through the second through hole 5012 ; the main steel support 104 and the stress-bearing surface channel steel 105 are both spaced apart from the stirrups 6 .

[0051] This embodiment also provides a construction method for lifting and installing a SPCS prefabricated column, using the above-mentioned combined device for lifting and installing a SPCS prefabricated column 2, comprising the following steps:

[0052] S1: Arrange a woodwork shop 7 on the ground, and place the prefabricated column 2 on the woodwork shop 7 in a horizontal state;

[0053] S2: Move the balancing tool 5 to the top surface of the prefabricated column 2, so that the balancing beam 501 contacts the top surface of the prefabricated column 2, and the limiting clips 502 are respectively clamped on the front and rear sides of the prefabricated column 2, and the stirrups 6 of the prefabricated column 2 pass through the second through hole 5012 and limit the balancing beam 501;

[0054] S3: insert the steel wire rope 4 through the first through hole 5011 of the balance beam 501, and then pass the steel wire rope 4 through the inside of the prefabricated column 2 along the length direction of the prefabricated column 2, and the steel wire rope 4 passes through the bottom surface of the prefabricated column 2;

[0055] S4: Move the beam lifting tool 3 to the bottom surface of the prefabricated column 2, insert the lifting ring on the steel wire rope 4 into the main supporting steel 301 and move it to the lifting area of ​​the main supporting steel 301; the main supporting steel 301 contacts the bottom surface of the prefabricated column 2, and the lifting ear side clamps 302 are respectively clamped on the front and rear sides of the prefabricated column 2;

[0056] S5: Move the auxiliary straightening tool 1 to the bottom surface of the prefabricated column 2, so that the base square steel tube 101 and the side wing square steel tube 102 are in contact with the wood block 7 and the bottom surface of the prefabricated column 2, the top clamp 106 is clamped on the side of the prefabricated column 2 away from the ground, and the load-bearing surface channel steel 105 is in contact with the bottom surface of the prefabricated column 2; the main steel support 104 and the load-bearing surface channel steel 105 are spaced apart from the stirrup 6 in the front-back direction;

[0057] S6: The hoisting wire rope 4 lifts the prefabricated column 2, and hoists the prefabricated column 2 from a horizontal state to a vertical state.

[0058] S7: After the installation is completed, the balancing tooling 5 and the beam fixture 3 are no longer under stress, and the lifting ring on the wire rope 4 is removed from the main support steel 301, and the beam fixture 3 is pulled out from the main reinforcement of the prefabricated column 2. The lifting ring on the wire rope 4 has a U-shaped card, and the wire rope 4 is pulled from the bottom to the top. The size of the U-shaped card is larger than the size of the first through hole 5011, so the balancing tooling 5 will be moved upward during the process (it should be noted that in step S3, the wire rope 4 is also inserted into the first through hole 5011 along this direction, and the wire rope 4 can also be preset before step S2. In short, it is based on improving the overall efficiency). At this time, the balancing tooling 5 and the beam fixture 3 can be recovered together by hooking the lifting hole 3022 on the beam fixture 3.

[0059] During the entire hoisting work of the prefabricated column 2, only 4 operators are needed to complete the installation of the prefabricated column 2 weighing 6 tons, and it only takes 20 minutes from hoisting to unhooking.

[0060] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0061] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A combined device for lifting and installing SPCS prefabricated columns, wherein the prefabricated columns (2) are lifted from a horizontal state to a vertical state, characterized in that: include: The auxiliary alignment tool (1) is arranged at the bottom of the prefabricated column (2). When the prefabricated column (2) is lifted from a horizontal state to a vertical state, the auxiliary alignment tool (1) can support and limit the position of the prefabricated column (2).

2. A combined device for lifting and installing SPCS prefabricated columns according to claim 1, characterized in that: The auxiliary correction tool (1) comprises: The base square steel tube (101) is arranged along the Y axis, and the two ends thereof are provided with wing square steel tubes (102) along the X axis direction; A connecting channel steel (103) is arranged in the middle of the base square steel tube (101) along the X-axis direction; A main steel support (104) is arranged on the connecting channel steel (103) along the Z-axis direction; The stress-bearing surface channel steel (105) is arranged on one side of the main steel support (104) close to the base square steel tube (101); A top clamp (106) is arranged on the top surface of the main steel support (104) along the X-axis direction; A balancing channel steel (107) is arranged on a side of the top clamp (106) away from the base square steel tube (101), and an end surface of the balancing channel steel (107) away from the base square steel tube (101) is flush with the wing square steel tube (102); When the prefabricated column (2) is in a horizontal state, a wood block (7) is arranged between the prefabricated column (2) and the ground, and the wood block (7) is close to the bottom surface of the prefabricated column (2); the base square steel pipe (101) and the side wing square steel pipe (102) are in contact with the wood block (7) and the bottom surface of the prefabricated column (2); the top clamp (106) is in contact with the side of the prefabricated column (2) away from the ground; and the load-bearing surface channel steel (105) is in contact with the bottom surface of the prefabricated column (2).

3. A combined device for lifting and installing SPCS prefabricated columns according to claim 2, characterized in that: There are at least two stress-bearing surface channel steels (105) which are respectively arranged close to the upper end and the lower end of the main steel support (104).

4. A combined device for lifting and installing SPCS prefabricated columns according to claim 2, characterized in that: Also includes: A beam lifting tool (3), the beam lifting tool (3) comprising: The main supporting steel (301) is arranged along the Y axis, and both ends of the main supporting steel (301) are provided with lifting ear side clamps (302) along the X axis direction; The main supporting steel (301) is in contact with the bottom surface of the prefabricated column (2), and the lifting ear side clamp (302) is in contact with the front and rear side surfaces of the prefabricated column (2) respectively; the main supporting steel (301) has a lifting area, and the steel wire rope (4) passes through the prefabricated column (2) from the top surface of the prefabricated column (2) and extends from the bottom surface of the prefabricated column (2); the steel wire rope (4) has a lifting ring, and the lifting ring is lifted on the lifting area.

5. A combined device for lifting and installing SPCS prefabricated columns according to claim 4, characterized in that: The lifting ear side clamp (302) extends in the Z-axis direction to form a lifting ring connection portion (3021), and the lifting ring connection portion (3021) is provided with a lifting hole (3022).

6. A combined device for lifting and installing SPCS prefabricated columns according to claim 4, characterized in that: The outer surface of the hoisting area is provided with a rubber belt (303).

7. A combined device for lifting and installing SPCS prefabricated columns according to claim 4, characterized in that: It also includes a balancing tool (5), wherein the balancing tool (5) includes: A balance beam (501) is arranged along the Y axis, and limit clamps (502) are arranged at both ends along the X axis direction. A first through hole (5011) is arranged through the middle of the balance beam (501); The balance beam (501) contacts the top surface of the prefabricated column (2), the limit card (502) contacts the front and rear side surfaces of the prefabricated column (2) respectively, and the steel wire rope (4) enters the prefabricated column (2) from the first through hole (5011).

8. A combined device for lifting and installing SPCS prefabricated columns according to claim 7, characterized in that: The balance beam (501) is provided with a second through hole (5012) near one end or both ends, the first through hole (5011) and the second through hole (5012) are arranged at intervals, a plurality of stirrups (6) are arranged inside the prefabricated column (2) along the length direction, and the stirrups (6) pass through the second through hole (5012); the main steel support (104) and the load-bearing surface channel steel (105) are both arranged at intervals from the stirrups (6).

9. A construction method for lifting and installing SPCS prefabricated columns, characterized in that: The combined device for lifting and installing SPCS prefabricated columns according to claim 7 or 8 is characterized in that it comprises the following steps: S1: Arrange a woodwork shop (7) on the ground, and place the prefabricated column (2) on the woodwork shop (7) in a horizontal state; S2: Move the balancing tool (5) to the top surface of the prefabricated column (2), so that the balancing beam (501) contacts the top surface of the prefabricated column (2), and the limit clamps (502) are respectively clamped on the front and rear side surfaces of the prefabricated column (2); S3: inserting the steel wire rope (4) through the first through hole (5011) of the balance beam (501), and then passing the steel wire rope (4) through the interior of the prefabricated column (2) along the length direction of the prefabricated column (2), and the steel wire rope (4) passes out from the bottom surface of the prefabricated column (2); S4: Move the beam lifting tool (3) to the bottom surface of the prefabricated column (2), insert the lifting ring on the steel wire rope (4) into the main supporting steel (301) and move it to the lifting area of ​​the main supporting steel (301); the main supporting steel (301) contacts the bottom surface of the prefabricated column (2), and the lifting ear side clamps (302) are respectively clamped on the front and rear side surfaces of the prefabricated column (2); S5: Move the auxiliary straightening tool (1) to the bottom surface of the prefabricated column (2), so that the base square steel tube (101) and the side wing square steel tube (102) are in contact with the wood frame (7) and the bottom surface of the prefabricated column (2), the top clamp (106) is clamped on the side of the prefabricated column (2) away from the ground, and the load-bearing surface channel steel (105) is in contact with the bottom surface of the prefabricated column (2); S6: The hoisting wire rope (4) lifts the prefabricated column (2), and hoists the prefabricated column (2) from a horizontal state to a vertical state.

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