Upright column hoisting installation mode and special lock

Abstract

The invention relates to the technical field of steel structure construction and installation, in particular to a stand column lifting installation mode and a special lockset. The stand column lifting installation mode comprises the following steps that S100, a stand column is flatly placed on the ground, and two first lifting lugs are welded to the lower end of the stand column; s200, a special lock is installed at the upper end of the stand column, and the two ends of a first lifting belt are connected with a first lifting lug and a second lifting lug at the lower end of the special lock correspondingly; s300, one end of a second lifting belt is connected with a third lifting lug at the upper end of the special lock, the other end of the second lifting belt is connected with a lifting hook of the crane, and the lifting hook rises to drive the stand column to move from the horizontal state to the vertical state and to be lifted in place; s400, the first hanging belt, the second hanging belt and the special lock are disassembled; s500, a worker cuts the first lifting lug on the ground, and the side surface of the stand column is polished to be smooth; according to the stand column lifting installation mode, the stand column can be directly and vertically lifted, the installation efficiency of the stand column is improved, the lifting belt and the special lock are convenient to disassemble, workers can cut the first lifting lug at the lower end of the stand column and grind and polish the side surface of the stand column on the ground, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure construction and installation, and in particular to a column lifting and installation method and a special lock. Background Art

[0002] During the construction and installation of steel structures, columns often need to be installed. Vertical hoisting of the columns is an ideal installation method. The traditional method is to weld a temporary lifting ear at one end of the column. The hook of the crane is connected to the temporary lifting ear through a sling, and the column is vertically hoisted into place. Since the center of gravity of the column is about 1 / 2 of the height of the column, after hoisting into place, the temporary lifting ear is at a high altitude above the center of gravity. The subsequent cutting of the temporary lifting ear and polishing of the smoothness must be done at high altitude, which is very inconvenient. Summary of the invention

[0003] To achieve the above object, 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 ears are welded at the lower end of the column;

[0005] S200, installing the special lock on the upper end of the column, and connecting the two ends of the first lifting strap to the first lifting ear and the second lifting ear at the lower end of the special lock respectively;

[0006] S300, one end of the second lifting strap is connected to the third lifting ear at the upper end of the special lock, and the other end is connected to the hook of the crane, and the hook is raised to drive the column to move from a horizontal state to an upright state and hoist it into place;

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

[0008] S500, the staff cuts the first lifting lug on the ground and polishes the side surface of the column to make it smooth.

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

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

[0011] In some possible embodiments, the two third lifting ears are symmetrically arranged on the upper end of the special lock, and the third lifting ear and the second lifting ear are mirror-imaged and arranged 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 lifting belt is separated from the hook, and the lower end is separated from the third lifting ear, so as to remove the second lifting belt;

[0014] S402, the upper end of the first lifting belt is separated from the second lifting ear, and the lower end is separated from the first lifting ear, so as to disassemble the first lifting belt;

[0015] S403, remove the bolts and nuts on the special lock to separate the two half-ring hangers of the special lock, so as to remove the special lock from the column.

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

[0017] S401, separating the lower end of the first lifting strap from the first lifting ear;

[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 is detached from the upper end of the column and the column.

[0019] In some possible embodiments, the distance between the first hanging ear and the lower end surface of the column is L1, and L1 satisfies 1m≤L1≤2m.

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

[0021] The present invention also provides a special lock, comprising two half-ring hangers arranged in a mirror image, wherein the ends of the half-ring hangers are provided with vertical connecting blocks, and the connecting blocks are provided with mounting through holes, and locking bolts pass through the two mounting through holes and are screwed with locking nuts to fix the two half-ring hangers in connection, and a second lifting ear and a third lifting ear are provided at the middle position of the half-ring hangers, wherein the second lifting ear is provided on the lower end surface of the half-ring hanger, and the third lifting ear is provided on the upper end surface of the half-ring hanger.

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

[0023] Compared with the prior art, the beneficial effects of the present invention are: this column lifting and installation method can directly lift the column vertically, thereby improving the installation efficiency of the column, and the slings and special locks are easy to disassemble. The staff can operate on the ground to cut the first lifting ear at the lower end of the column and grind and polish the side surface of the column, thereby reducing labor intensity. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. 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 creative work.

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

[0026] Figure 2 A schematic diagram of the structure of the hoisting installation of a round tube column provided in an embodiment of the present invention;

[0027] Figure 3 A structural schematic diagram of the lifting and installation of an I-beam column provided in an embodiment of the present invention;

[0028] Figure 4 A schematic structural diagram of a special lock provided in an embodiment of the present invention.

[0029] Figure numerals: column 10, first lifting ear 11, first lifting strap 12, second lifting strap 13, special lock 20, semi-ring hanging seat 21, connecting block 22, mounting through hole 23, second lifting ear 24, third lifting ear 25, locking bolt 26, locking nut 27. DETAILED DESCRIPTION

[0030] 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.

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

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

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

[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 ear 11 should be greater than 1 / 2 of the total length of the column 10, so as to ensure that the center of gravity of the column 10 is between the special lock 20 and the first lifting ear 11, and the column 10 can remain in an upright state after being lifted; further, during lifting, the first lifting belt 12 is in a tensioned state, and the distance between the special lock 20 and the first lifting ear 11 is the length of the first lifting belt 12. In this embodiment, the length of the column 10 is L, and the length of the first lifting belt 12 is L2, then L2 should satisfy 1 / 2L≤L2≤3 / 4L; the two ends of the first lifting belt 12 are respectively connected to the first lifting ear 11 and the second lifting ear 24 at the lower end of the special lock 20 by shackles;

[0035] S300, one end of the second lifting belt 13 is connected to the third lifting ear 25 at the upper end of the special lock 20 through a shackle, and the other end is also connected to the hook of the crane through the shackle, the crane is started to drive the hook to rise, as the hook rises, the first lifting belt 12 and the second lifting belt 13 are changed from a loose state to a tensioned state and drive the column 10 to stand upright, the hook continues to rise so that the column 10 is adjusted off the ground, the hook drives the column 10 to move horizontally to the installation position and after the column 10 is hoisted in place, the staff installs and fixes the column 10 on the ground;

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

[0037] S500, the staff cuts the first lifting lug 11 on the ground and grinds the side surface of the column 10 to make it smooth. At this point, the lifting and installation operations of the column 10 are completed.

[0038] In some possible embodiments, in step S200, the two second lifting ears 24 are symmetrically arranged 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 ear 24 and the first lifting ear 11 remains parallel to the central axis of the column 10 to ensure that the first lifting belt 12 / column 10 is balanced in force and does not rotate during lifting.

[0039] In some possible embodiments, two third lifting ears 25 are symmetrically arranged at the lower end of the special lock 20, and the third lifting ear 25 and the second lifting ear 24 are mirror-imaged at the upper and lower ends of the special lock 20 to ensure that the second lifting belt 13 / column 10 is balanced in force and does not rotate during lifting.

[0040] In some possible embodiments, when the hook is limited in lifting, 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 lifting ear 25, so that the second sling 13 is disassembled and removed;

[0042] S402, the upper end of the first sling 12 is separated from the shackle at the second lifting ear 24 or the shackle at the upper end of the first sling 12 is separated from the second lifting ear 24, the lower end of the first sling 12 is separated from the shackle at the first lifting ear 11 or the shackle at the lower end of the first sling 12 is separated from the first lifting ear 11, so as to dismantle and remove the first sling 12;

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

[0044] In this embodiment, the staff can take the high working platform to rise to the position on the column 10 close to the special lock 20 to perform the above-mentioned steps S401 , S402 and S403 on the special lock 20 .

[0045] In some possible embodiments, when the hook is not limited in lifting, step S400 includes the following steps:

[0046] S401, a worker operates on the ground to separate the lower end of the first sling 12 from the shackle at the first lifting ear 11 or separate the shackle at the lower end of the first sling 12 from the first lifting ear 11;

[0047] S402, the crane drives the hook to continue to rise, and the special lock 20 also continues to rise with the hook until it is disengaged from the upper end of the column 10. The crane drives the hook / special lock 20 to translate until the special lock 20 does not collide with the column 10, and then the crane drives the hook / special lock 20 to descend to the ground, and the staff dismantles and removes 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 is small between the special lock 20 and the outer side of the column 10. The hook can drive the special lock 20 to rise relative to the column 10. The method of this embodiment can completely avoid high-altitude work for workers 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-imaged half-ring hangers 21, both ends of which are provided with vertical connection blocks 22, which can be fixedly installed on the ends of the half-ring hangers 21 by welding or bolting, and the connection blocks 22 are provided with installation through holes 23. When installing, after the ends of the two half-ring hangers 21 are relatively close to each other, a locking bolt 26 is passed through the two installation through holes 23 and a locking nut is screwed to lock the two half-ring hangers 21. The hanger 21 is enclosed and clamped on the outer periphery of the column 10, and a second lifting ear 24 and a third lifting ear 25 are also provided in the middle position of the semi-ring hanger 21. The second lifting ear 24 and the third lifting ear 25 are mirror-imaged and arranged at the upper and lower ends of the semi-ring hanger 21, wherein the second lifting ear 24 is located at the lower end surface of the semi-ring hanger 21, and the third lifting ear 25 is located at the upper end surface of the semi-ring hanger 21; further, the inner hole formed by the two semi-ring hangers 21 can be circular or rectangular to adapt to the tubular column 10 or the I-beam column 10.

[0050] It should be noted that the first sling 12 and the second sling 13 of all the above embodiments may also be made of double-loop steel wire ropes.

[0051] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A column lifting installation method, characterized in that: The following steps are involved: S100, the column (10) is placed flat on the ground, and two first lifting ears (11) are welded to the lower end of the column (10); S200, installing the special lock (20) on the upper end of the column (10), and connecting the two ends of the first lifting belt (12) to the first lifting ear (11) and the second lifting ear (24) at the lower end of the special lock (20); S300, one end of the second lifting belt (13) is connected to the third lifting ear (25) at the upper end of the special lock (20), and the other end is connected to the hook of the crane, and the hook is raised to drive the column (10) to move from a horizontal state to an upright state and hoist it into place; S400, disassembling the first sling (12), the second sling (13) and the special lock (20); S500, the staff cuts the first lifting lug (11) on the ground and grinds the side surface of the column (10) to make it smooth.

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

3. A column lifting and installation method according to claim 1, characterized in that: Two second lifting ears (24) are symmetrically arranged 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 ears (24) and the first lifting ears (11) is parallel to the central axis of the column (10).

4. A column lifting and installation method according to claim 1, characterized in that: Two third lifting ears (25) are symmetrically arranged at the upper end of the special lock (20), and the third lifting ears (25) and the second lifting ears (24) are mirror-imaged and arranged at the upper and lower ends of the special lock (20).

5. A column lifting and installation method according to claim 1, characterized in that: Step S400 also includes the following steps: S401, the upper end of the second lifting belt (13) is detached from the lifting hook, and the lower end is detached from the third lifting ear (25), so as to disassemble the second lifting belt (13); S402, the upper end of the first lifting strap (12) is separated from the second lifting ear (24), and the lower end is separated from the first lifting ear (11), so as to disassemble the first lifting strap (12); S403, dismantle the bolts and nuts on the special lock (20), separate the two half-ring hangers (21) of the special lock (20), and remove the special lock (20) from the column (10).

6. A column lifting and installation method according to claim 1, characterized in that: Step S400 also includes the following steps: S401, detaching the lower end of the first lifting strap (12) from the first lifting ear (11); S402, the hook rises to drive the second sling (13), the special lock (20) and the first sling (12) to move upward relative to the column (10), until the special lock (20) is detached from the upper end of the column (10) and the column (10).

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

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

9. A special lock, used in the column lifting and installation method according to any one of claims 1 to 8, characterized in that: The special lock (20) comprises two half-ring hangers (21) arranged in mirror image, and a connecting block (22) is arranged along the vertical direction at the end of each half-ring hanger (21), and a mounting through hole (23) is opened on the connecting block (22). A locking bolt (26) passes through the two mounting through holes (23) and is screwed with a locking nut (27) to fix the two half-ring hangers (21) in connection, and a second lifting ear (24) and a third lifting ear (25) are arranged at the middle position of each half-ring hanger (21), and the second lifting ear (24) is arranged on the lower end surface of the half-ring hanger (21), and the third lifting ear (25) is arranged on the upper end surface of the half-ring hanger (21).

10. A special lock according to claim 9, characterized in that: The two semi-ring hangers (21) are enclosed to form a circular inner hole or a rectangular inner hole.

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