Column hoisting and installing mode and special lock

Abstract

The present application relates to steel structure construction installation technical field, especially stand column hoisting installation mode and special lock, including following steps: S100, stand column is placed on the ground, two first lugs are welded on the lower end of stand column; S200, special lock is installed on the upper end of stand column, both ends of first sling are connected with first lug and second lug on the lower end of special lock respectively; S300, one end of second sling is connected with third lug on the upper end of special lock, the other end is connected with lifting hook of crane, lifting hook is lifted to drive stand column to move from flat state to vertical state and hoist in place; S400, first sling, second sling and special lock are dismantled; S500, staff cuts first lug on the ground and polishes smooth the side surface of stand column; The present stand column hoisting installation mode can directly hoist stand column vertically, improve the installation efficiency of stand column, the first sling and special lock are convenient to disassemble, the staff can operate cutting first lug on the lower end of stand column and polishing the side surface of stand column on the ground, reduce the labor intensity.

Description

Technical Field

[0001] This invention relates to the field of steel structure construction and installation technology, and in particular to a column lifting and installation method and a special locking device. Background Technology

[0002] During the construction and installation of steel structures, columns often need to be installed. Vertical hoisting of the columns is the ideal installation method. The traditional method is to weld temporary lifting lugs to one end of the column, and the crane hook is connected to the temporary lifting lugs through slings to hoist the column vertically into place. Since the center of gravity of the column is located at about 1 / 2 of the column height, after hoisting into place, the temporary lifting lugs are in a high position above the center of gravity. Subsequent work such as cutting the temporary lifting lugs and polishing them must be done at height, which is very inconvenient. Summary of the Invention

[0003] To achieve the above objectives, the present invention provides a column lifting and installation method, comprising the following steps:

[0004] S100, the column is placed flat on the ground, and two first lifting lugs are welded to the lower end of the column;

[0005] S200. Install the special lock on the upper end of the column, and connect the first lifting lug and the second lifting lug at the lower end of the special lock to the two ends of the first lifting strap respectively.

[0006] S300: One end of the second sling is connected to the third lifting lug at the top of the special lock, and the other end is connected to the hook of the crane. The hook is raised to move the column from a flat position to an upright position and hoist it into place.

[0007] S400, disassemble the first sling, the second sling, and the special lock;

[0008] S500, the workers cut the first lifting lug on the ground and polished the side surface of the column smooth.

[0009] In some possible embodiments, in step S100, the two first lifting lugs are symmetrically welded to opposite sides of the column.

[0010] In some possible embodiments, two second lifting lugs are symmetrically arranged at the lower end of a special lock, which is installed behind the column, and the axis between the second lifting lug and the first lifting lug is parallel to the central axis of the column.

[0011] In some possible embodiments, two third lugs are symmetrically arranged at the upper end of the special lock, and the third lugs are mirror images of the second lugs, located at the upper and lower ends of the special lock.

[0012] In some possible embodiments, step S400 further includes the following steps:

[0013] S401. The upper end of the second sling is detached from the hook, and the lower end is detached from the third lug, so as to disassemble the second sling;

[0014] S402, the upper end of the first sling is detached from the second lug, and the lower end is detached from the first lug, so as to disassemble the first sling;

[0015] S403. Remove the bolts and nuts on the special lock to separate the two semi-ring brackets of the special lock so that the special lock can be removed from the column.

[0016] In some possible embodiments, step S400 further includes the following steps:

[0017] S401. Disconnect the lower end of the first sling from the first lug;

[0018] S402, the hook rises to drive the second sling, the special lock and the first sling to move upward relative to the column, until the special lock disengages from the upper end of the column.

[0019] In some possible embodiments, the distance between the first lifting lug and the lower end face of the column is L1, where L1 satisfies 1m≤L1≤2m.

[0020] In some possible embodiments, the length of the column is L, and the length of the first sling is L2, where L2 satisfies 1 / 2L≤L2≤3 / 4L.

[0021] The present invention also provides a special lock, comprising two semi-ring hangers arranged in a mirror image. Each semi-ring hanger has a vertically oriented connecting block at its end. The connecting block has a mounting through hole. A locking bolt passes through the two mounting through holes and a locking nut is screwed on to fix the two semi-ring hangers together. A second lifting lug and a third lifting lug are provided in the middle of each semi-ring hanger. The second lifting lug is located on the lower end face of the semi-ring hanger, and the third lifting lug is located on the upper end face of the semi-ring hanger.

[0022] In some possible embodiments, the two semi-ring hangers are joined together to form a circular or rectangular inner hole.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: the column lifting and installation method can directly lift the column vertically, improving the installation efficiency of the column; the lifting straps and special locks are easy to disassemble; and workers can operate on the ground to cut the first lifting lug at the bottom of the column and polish the side surface of the column, reducing labor intensity. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A step-by-step operation flowchart of the column lifting and installation method provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure for lifting and installing a circular tube column according to an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the structure for lifting and installing the I-beam column according to an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of a special lock provided in an embodiment of the present invention.

[0029] Reference numerals: Column 10, First lifting lug 11, First lifting strap 12, Second lifting strap 13, Special lock 20, Semi-ring lifting base 21, Connecting block 22, Mounting through hole 23, Second lifting lug 24, Third lifting lug 25, Locking bolt 26, Locking nut 27. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.

[0032] Reference Figures 1 to 3 The column lifting and installation method shown includes the following steps:

[0033] S100, the column 10 is kept flat on the ground. Two first lifting lugs 11 are welded to the lower end of the column 10 on opposite sides. The two first lifting lugs 11 are symmetrically arranged and the distance between the two lifting lugs and the lower end face of the column 10 is set as L1. L1 should satisfy 1m≤L1≤2m. This design allows workers to weld the first lifting lugs 11 on the ground, and subsequently cut the first lifting lugs 11 on the ground and polish the side surface area of ​​the first lifting lugs 11 welded on the column 10, avoiding high-altitude operations and reducing the labor intensity of workers.

[0034] S200. Install the special lock 20 on the upper end of the column 10. The distance between the special lock 20 and the first lifting lug 11 should be greater than 1 / 2 of the total length of the column 10 to ensure that the center of gravity of the column 10 is between the special lock 20 and the first lifting lug 11, so that the column 10 can remain upright after being lifted. Furthermore, the first lifting strap 12 is in a taut state during hoisting. The distance between the special lock 20 and the first lifting lug 11 is the length of the first lifting strap 12. In this embodiment, the length of the column 10 is L, and the length of the first lifting strap 12 is L2. Then L2 should satisfy 1 / 2L≤L2≤3 / 4L. The two ends of the first lifting strap 12 are respectively connected to the first lifting lug 11 and the second lifting lug 24 at the lower end of the special lock 20 through shackles.

[0035] S300, one end of the second sling 13 is connected to the third lifting lug 25 at the upper end of the special lock 20 via a shackle, and the other end is also connected to the hook of the crane via a shackle. The crane is started to drive the hook to rise. As the hook rises, both the first sling 12 and the second sling 13 change from a slack state to a tensioned state and drive the column 10 to stand upright. The hook continues to rise so that the column 10 is lifted off the ground. The hook drives the column 10 to move horizontally to the installation position and after the column 10 is hoisted into place, the workers install and fix the column 10 on the ground.

[0036] S400, Disassemble the first sling 12, the second sling 13 and the special lock 20, and remove the first sling 12, the second sling 13 and the special lock 20 from the column 10 respectively;

[0037] S500, the workers cut the first lifting lug 11 on the ground and polished the side surface of the column 10. At this point, the lifting and installation of the column 10 is completed.

[0038] In some possible embodiments, in step S200, the two second lifting lugs 24 are symmetrically disposed at the lower end of the special lock 20. After the special lock 20 is installed on the column 10, the axis between the second lifting lug 24 and the first lifting lug 11 is kept parallel to the central axis of the column 10 to ensure that the first lifting strap 12 / column 10 is in a balanced state and does not rotate during lifting.

[0039] In some possible embodiments, two third lifting lugs 25 are symmetrically disposed at the lower end of the special lock 20, and the third lifting lugs 25 and the second lifting lugs 24 are mirror images of each other disposed at the upper and lower ends of the special lock 20, so as to ensure that the second lifting strap 13 / column 10 is balanced and does not rotate during lifting.

[0040] In some possible embodiments, in cases where hook lifting is limited, step S400 includes the following steps:

[0041] S401, the upper end of the second sling 13 is separated from the shackle at the hook or the shackle at the second sling 13 is separated from the hook, and the lower end of the second sling 13 is also separated from the shackle at the third lug 25, so as to disassemble and remove the second sling 13.

[0042] S402, the shackle at the upper end of the first sling 12 is separated from the shackle at the second lug 24 or the shackle at the upper end of the first sling 12 is separated from the second lug 24, and the shackle at the lower end of the first sling 12 is separated from the shackle at the first lug 11 or the shackle at the lower end of the first sling 12 is separated from the first lug 11, so as to disassemble and remove the first sling 12.

[0043] S403. Remove the bolts and nuts on the special lock 20 to separate the two semi-ring brackets 21 of the special lock 20, so as to remove the special lock 20 from the column 10.

[0044] In this embodiment, workers can ride on a high-work platform to a position on the column 10 near the special lock 20 to perform the above-mentioned steps S401, S402 and S403 on the special lock 20.

[0045] In some possible embodiments, where the hook height is unrestricted, step S400 includes the following steps:

[0046] S401. The worker operates on the ground to separate the lower end of the first sling 12 from the shackle at the first lug 11 or to separate the shackle at the lower end of the first sling 12 from the first lug 11.

[0047] S402, the crane drives the hook to continue rising, and the special lock 20 also continues to rise with the hook until it disengages from the upper end of the column 10. The crane drives the hook / special lock 20 to move horizontally until the special lock 20 does not collide with the column 10. Then the crane drives the hook / special lock 20 to descend to the ground. The workers disassemble and remove the first sling 12, the second sling 13 and the special lock 20 on the ground.

[0048] In this embodiment, there is no locking force or the locking force between the special lock 20 and the outer side of the column 10 is small. The hook can drive the special lock 20 to rise relative to the column 10. The method of this embodiment can completely avoid workers working at height and reduce the labor intensity of workers.

[0049] Reference Figures 2 to 4 As shown, the present invention also provides a special lock 20, which includes two mirror-arranged semi-ring hangers 21. Each end of a semi-ring hanger 21 is provided with a vertically aligned connecting block 22. The connecting block 22 can be fixedly installed at the ends of the semi-ring hangers 21 by welding or bolting. The connecting block 22 is provided with mounting through holes 23. During installation, after the ends of the two semi-ring hangers 21 are brought close together, a locking bolt 26 is passed through the two mounting through holes 23 and a locking nut is tightened to secure the two semi-rings. The hanging bracket 21 surrounds the outer perimeter of the column 10. A second lifting lug 24 and a third lifting lug 25 are also provided in the middle of the semi-circular hanging bracket 21. The second lifting lug 24 and the third lifting lug 25 are mirror images of each other and are located at the upper and lower ends of the semi-circular hanging bracket 21. The second lifting lug 24 is located on the lower end face of the semi-circular hanging bracket 21, and the third lifting lug 25 is located on the upper end face of the semi-circular hanging bracket 21. Furthermore, the inner hole formed by the two semi-circular hanging brackets 21 can be circular or rectangular to accommodate the cylindrical column 10 or the I-beam column 10.

[0050] It should be noted that the first sling 12 and the second sling 13 in all the above embodiments can also be double-ring steel wire ropes.

[0051] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions within the technical scope disclosed in the present invention should be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for lifting and installing a column, characterized in that, Includes the following steps: S100, the column (10) is placed flat on the ground, and two first lifting lugs (11) are welded to the lower end of the column (10). S200. Install the special lock (20) on the upper end of the column (10), and connect the two ends of the first sling (12) to the first lifting lug (11) and the second lifting lug (24) at the lower end of the special lock (20) respectively. S300, one end of the second sling (13) is connected to the third lifting lug (25) at the upper end of the special lock (20), and the other end is connected to the hook of the crane. The hook is raised to drive the column (10) from the flat position to the vertical position and hoist it into place. S400, Disassemble the first sling (12), the second sling (13), and the special lock (20); S500, the staff cut the first lifting lug (11) on the ground and polished the side surface of the column (10) smooth; Step S400 also includes the following steps: S401. The upper end of the second sling (13) is disengaged from the hook and the lower end is disengaged from the third lug (25) to disassemble the second sling (13). S402, the upper end of the first sling (12) is disengaged from the second lug (24), and the lower end is disengaged from the first lug (11) to remove the first sling (12). S403. Remove the bolts and nuts on the special lock (20) to separate the two semi-ring brackets (21) of the special lock (20) so as to remove the special lock (20) from the column (10).

2. The column lifting and installation method according to claim 1, characterized in that, In step S100, the two first lifting lugs (11) are symmetrically welded to opposite sides of the column (10).

3. The column lifting and installation method according to claim 1, characterized in that, Two second lifting lugs (24) are symmetrically arranged at the lower end of the special lock (20). The special lock (20) is installed behind the column (10). The axis between the second lifting lug (24) and the first lifting lug (11) is parallel to the central axis of the column (10).

4. The column lifting and installation method according to claim 1, characterized in that, Two third lugs (25) are symmetrically arranged at the upper end of the special lock (20), and the third lugs (25) and the second lugs (24) are mirror images of each other and are located at the upper and lower ends of the special lock (20).

5. The column lifting and installation method according to claim 1, characterized in that, The distance between the first lifting lug (11) and the lower end face of the column (10) is L1, and L1 satisfies 1m≤L1≤2m.

6. The column lifting and installation method according to claim 1, characterized in that, The length of the column (10) is L, and the length of the first sling (12) is L2, where L2 satisfies 1 / 2L≤L2≤3 / 4L.

7. A special lock, used in the column lifting and installation method as described in any one of claims 1 to 6, characterized in that, The special lock (20) includes two semi-ring hangers (21) arranged in a mirror image. The ends of the semi-ring hangers (21) are provided with vertical connecting blocks (22). The connecting blocks (22) are provided with mounting through holes (23). Locking bolts (26) pass through the two mounting through holes (23) and tightening nuts (27) to fix the two semi-ring hangers (21) together. The middle position of the semi-ring hangers (21) is provided with a second lifting lug (24) and a third lifting lug (25). The second lifting lug (24) is provided on the lower end face of the semi-ring hanger (21), and the third lifting lug (25) is provided on the upper end face of the semi-ring hanger (21).

8. A special lock according to claim 7, characterized in that, The two semi-ring hangers (21) surround each other to form a circular inner hole or a rectangular inner hole.

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