TWI668354B - Auxiliary tool for correction of alignment difference of steel column - Google Patents

Abstract

The present invention provides an aid for reducing the labor required to correct the alignment difference of the steel frame for the column.

The auxiliary tool (10) is used to correct the misalignment between the steel frame (12) for the column to be placed first and the steel frame (14) for the column for the steel frame to be attached to the lower side. use. The auxiliary device is composed of a lever member (20) and a bolt (22). The lever member has an end portion (28) and a other end portion (30) which are opposite to the two plate-like mounting members on one side of the two plate-like mounting members (16, 18). And 18), the two plate-like erecting members (16, 18) are respectively disposed at the ends of the two steel frames; and the hook portion (26) is inserted between the two erecting members to enable the two The other side of the erecting members is opposite to one of the two erecting members. The bolt (22) is screwed to one end of the lever member and has a front end portion (22a) that can face one side of the two mounting members.

Description

 Auxiliary tool for correction of alignment difference of steel column  

The present invention relates to an auxiliary device for correcting the alignment between the lower steel frame for the column first set in the steel column construction method and the steel frame additionally attached to the lower steel frame. The difference, that is, the deviation of the horizontal direction of the steel frame from the upper side of the steel frame.

Since the prior art, an aid has been proposed which can be used to correct such a difference in alignment. The auxiliary device has a plate body having a body and a hook portion, a pair of nuts respectively mounted on opposite end faces of the plate body, and a pair of bolts respectively screwed The two nuts are combined; the hook portion protrudes substantially parallel to the nut from the body.

In the above-mentioned conventional assisting device, when it is used, the hook portion of the plate body is passed between the erection pieces of the upper and lower steel frames where the alignment difference has occurred, and the hook portion is hooked between the two pieces. One of the erection members of the steel frame, for example, the erecting member of the steel frame below, and then the bolt that has been screwed to the nut of the erection member of the steel frame that is opposite to the lower side is advanced, and the front end portion is abutted The erection of the steel frame below. Next, the bolt that has been screwed with the nut of the mounting member of the steel frame facing upward is advanced, and the horizontal external force is applied to the mounting member of the upper steel frame. Thereby, the upper steel frame is horizontally moved on the lower steel frame to correct the alignment difference, which is the deviation of the horizontal direction of the upper steel frame from the lower steel frame.

 [Previous Technical Literature]    [Patent Literature]  

Patent Document 1: Japanese Laid-Open Patent Publication No. 2002-194897

However, in order to perform the horizontal movement of the steel frame above the weight, great labor is required in the rotation operation of the bolt. The correction of the alignment difference of the steel frame is performed at a high place, and from the viewpoint of ensuring safety, it is preferable that the labor required is as small as possible.

Accordingly, it is an object of the present invention to provide an assisting tool for reducing the labor required for correcting the alignment difference of a steel frame for a column.

The present invention relates to an auxiliary device which is used for correcting the difference in alignment between the steel frame below the column for the previously provided column and the steel frame for the column attached to the lower steel frame. The auxiliary device is composed of a lever member and a bolt. The lever member has one end portion and the other end portion, and can be opposite to the two plate-shaped mounting members on one side of the two plate-shaped mounting members, and the two plate-shaped mounting members are respectively disposed At the ends of the two steel frames; and the hook portion, which is passed between the two erecting members, can be opposite to one of the two erecting members on the other side of the two erecting members. Further, the bolt is screwed to one end portion of the lever member, and has a front end portion that can face one side of the two mounting members. The aforementioned lever member is composed of, for example, a plate body.

In the use of the assisting device of the present invention, the hook portion of the lever member is passed between the erecting members of the upper and lower steel frames in which the alignment difference has occurred, and the lever member is set to the state of: One end portion and the other end portion are respectively erected on one side of the two mounting members with respect to one of the two mounting members and the other, for example, a lower steel frame mounting member (lower mounting member) and an upper steel frame a member (the upper erecting member), and the hook portion is opposite to the lower erecting member on the other side of the lower erecting member. At this time, the front end of the bolt screwed to one end of the aforementioned lever member is attached to the other side of the lower mounting member opposite to the lower mounting member. Next, the bolt is rotated to advance it so that one end portion thereof is pressed against the lower mounting member. Accordingly, one end portion and the other end portion of the aforementioned lever member abut against the lower erecting member and the upper erecting member, respectively. Then, when the bolt is further rotated, one end portion of the lever member relatively moves in the axial direction with respect to the bolt. Thereby, the aforementioned lever member rotates around the lower erecting member, and at the other end portion, the lower erecting member serves as a reaction force supporting body to bring a horizontal external force to the upper erecting member. As a result, the upper steel frame will move horizontally on the steel frame below, and the alignment difference between the two steel frames will be corrected or eliminated.

According to the invention, the aforementioned lever member functions as a lever in the correction of the aforementioned alignment difference. Therefore, it is possible to impart a relatively large force to the steel frame above the weight at the other end of the lever member by applying a relatively small force to one end of the lever member. Thereby, the force required for the rotation operation of the bolt for imparting a force to one end portion of the lever member can be made relatively small, whereby the labor required for the correction of the alignment difference can be reduced. Moreover, according to the present invention, it is possible to provide a registration difference correction aid having a structure that is simpler and lighter than the conventional alignment difference correction aid, and which is easier to handle, which also contributes to the alignment difference. Correct the reduction in labor required.

10‧‧‧Aids

12‧‧‧ steel frame below

14‧‧‧ Steel frame above

16‧‧‧ below the erection

Side of the 16a, 18a‧‧‧ side

16b, 18b‧‧‧ side of the other side

18‧‧‧Upper erection

20‧‧‧Leverage components

22‧‧‧ bolt

22a‧‧‧ front end of bolt

24‧‧‧Ontology

26‧‧‧Hooks

28, 30‧‧‧ One end and the other end of the lever member

32‧‧‧ front part of the hook

34, 36‧‧‧ part of the sun

38‧‧‧Helper for overturn prevention

S‧‧‧ gap

a, b‧‧‧ distance

Fig. 1 is a perspective view of an aid for alignment difference correction according to an embodiment of the present invention.

Fig. 2 is a side view of the auxiliary device for correcting the alignment difference of the mounting members of the steel frames for the upper and lower columns.

Fig. 3 is a rear view of the assisting device for correcting the misalignment shown in Fig. 2.

Fig. 4 is a side view of the corrected difference correction aid after the correction of the alignment difference.

Referring to Fig. 1, an auxiliary device according to an embodiment of the present invention is generally indicated by reference numeral 10. The auxiliary tool 10 is composed of a lever member 20 and a bolt 22. The lever member 20 is a member that functions as a lever, and the bolt 22 is a member that provides a rotational force to the lever member 20.

As shown in Fig. 2, the auxiliary tool 10 is for correcting the pair of steel frames 12 extending vertically below the steel column construction method and the steel frame 14 additionally attached to the steel frame. The difference in position, that is, the deviation of the upper horizontal steel frame 14 from the horizontal direction of the steel frame 12 below. In order to correct the above-described alignment difference, the auxiliary tool 10 is attached to the mounting members 16, 18 which will be respectively provided in the two steel frames 12, 14.

The two steel frames 12 and 14 shown in the figure are each composed of a steel pipe having a rectangular cross-sectional shape. In order to additionally attach the steel frame 12 to the lower side, the upper steel frame 14 is, for example, by a crane (not shown). ) suspended from the steel frame 12 below and placed there.

In order to suspend by the aforementioned crane, a plurality of plate-like mounting members 16, 18 are attached to the upper end portion and the lower end portion of the two steel frames 12, 14, respectively. More specifically, four mounting members (lower mounting members) 16 are disposed on the four sides of the lower steel frame 12 so as to be orthogonal to the sides and extend in the up and down direction, and four mounting members ( The upper mounting members 18 are arranged on the four side faces of the upper steel frame 14 so as to be orthogonal to the side faces and extend in the vertical direction. The upper and lower mounting members 16, 18 are generally disposed at the central portion of each of the sides of the rectangular shape in the cross-sectional shape of each of the steel frames 12, 14. Further, a gap S is formed between the upper and lower two mounting members 16, 18 on each side surface.

The lever member 20 of the auxiliary tool 10 is composed of a steel plate body having a circular planar shape or contour as a whole, and the upper and lower steel frames 12, 14 are parallel to the sides of the steel frames. Configuration (refer to Figure 3). In the observation of Fig. 2, the lever member 20 has a body 24 extending in the longitudinal direction (up and down direction), and a hook portion 26 extending outward from the body. The body 24 has two end portions that define one end portion 28 and the other end portion 30 of the lever member 20, respectively.

In the observation of Fig. 2, the hook portion 26 of the lever member 20 has a length dimension of a gap S between the mounting members 16, 18 which can be inserted into the lower and upper steel frames 12, 14. The hook portion 26 has a front end portion 32. The distal end portion 32 is disposed such that the lever member 20 functions as a lever, and is disposed closer to the other end portion 30 than an intermediate position between the one end portion 28 and the other end portion 30 of the lever member 20. In other words, the longitudinal direction of the body 24 is set such that the distance a between the one end portion 28 of the lever member 20 and the front end portion 32 of the hook portion 26 is higher than the other end portion 30 and the front end portion 32 of the hook portion 26. The distance b between them is still large (a>b).

The bolt 22 is screwed to one end portion 28 of the lever member 20 and penetrates the one end portion. More specifically, the threaded ridge of the bolt 22 is engaged with a threaded groove (not shown) provided at the one end portion 28. Preferably, when the auxiliary tool 10 is attached to the state shown in FIG. 2 of the two steel frames 12 and 14, the bolt 22 is disposed so as to be orthogonal to the mounting member 16 of the steel frame 12 below.

The auxiliary device 10 can be attached to the upper and lower two mounting members 16, 18 in the following manner.

First, the hook portion 26 of the lever member 20 is passed between the two mounting members 16, 18 (S), and the hook portion 26 is placed on the lower mounting member 16. At this time, one end portion 28 and the other end portion 30 of the lever member 20 are attached to one side of the lower mounting member 16 and the upper mounting member 18 (the right side in FIG. 2), that is, the lower mounting member 16 The sides of one of the side faces 16a, 18a of the upper mounting member 18 are opposed to the lower mounting member 16 and the upper mounting member 18, respectively. Further, the hook portion 26 (more precisely, the front end portion 32) is attached to the other side of the lower mounting member 16 (the left side in FIG. 2), that is, the other side of the lower mounting member 16 The side of the side 16b is opposite to the underlying erecting member 16. Further, the front end portion 22a of the bolt 22 screwed to one end portion 28 of the lever member 20 is opposed to the lower mounting member 16 on the side of one of the lower mounting members 16 (on the side of one side surface 16a).

Next, the bolt 22 is rotated to advance the front end portion 22a toward the lower mounting member 16, and is pressed against the mounting member 16. Thereby, the lever member 20 is slightly rotated about the lower mounting member 16 in the counterclockwise direction as viewed in FIG. 2, so that the other end portion 30 of the lever member 20 and the front end portion 32 of the hook portion 26 are respectively limited. A portion 34, 36 of the peripheral surface of the plate body of the contour of the portion abuts against one side surface 18a of the upper mounting member 18 and the other side surface 16b of the lower mounting member 16. Thereby, the installation of the assisting device 10 is completed.

After that, the bolt 22 is turned. At this time, since the front end portion 22a of the bolt 22 abuts against one side surface 16a of the lower mounting member 16, it is prevented from further traveling. Therefore, the lower mounting member 16 is used as the lowering of the bolt 22 The reaction force support body relatively moves one end portion 28 of the lever member 20 relative to the bolt 22 in the axial direction thereof, and gradually moves away from the lower mounting member 16. In the illustrated example, the front end portion 22a of the bolt 22 is formed by one of the spherical surfaces. Thereby, the contact resistance of the front end portion 22a of the bolt 22 with respect to the lower mounting member 16 can be reduced, and the force required for the rotation of the bolt 22 can be made smaller.

With the rotation of the bolt 22, the lever member 20 is rotated counterclockwise about the lower mounting member 16. During rotation, the front end portion 32 of the hook portion 26 is slid over the side 16b of the underlying erecting member 16 by a portion 36 of the peripheral surface of the aforementioned plate body defining its contour. Accordingly, the other end portion 30 of the lever member 20 is horizontally biased by sliding a portion 34 of the circumferential surface of the plate body defining the contour on one side surface 18a of the upper mounting member 18. As a result, the upper steel frame 14 will move horizontally on the lower steel frame 12. The alignment difference with respect to the underlying steel frame 12 is corrected or eliminated by the horizontal movement of the upper steel frame 14 (Fig. 4). In the illustrated example, in order to make the resistance to the sliding of the front end portion 32 and the other end portion 30 of the hook portion 26 smaller, one of the peripheral portions 34, 36 defining the contour of the portions is respectively rounded. One part of the cylinder surface. After correcting the alignment difference, the auxiliary aid 10 can be detached from the two mounting members 16, 18 by loosening the bolts 22 and supplied for reuse.

The lever member 20 functions as a lever in the correction of the aforementioned alignment difference. Therefore, it is possible to impart a relatively large force to the steel frame 14 above the weight from the other end portion 30 of the lever member 20 by giving a relatively small force to one end portion 28 of the lever member 20. Thereby, the force required for the rotation operation of the bolt 22 for imparting a force to one end portion 28 of the lever member 20 can be made relatively small, whereby the labor required for the correction of the alignment difference can be reduced.

Instead of the illustrated example, the auxiliary device 10 may be attached to the two mounting members 16, 18 in a state in which the upper and lower sides viewed in Fig. 2 are opposite to each other, and used for use. Accordingly, one end portion 28 of the lever member 20 (the front end portion 22a of the bolt 22) and the other end portion 30 are opposite to the other side surface 18b of the upper mounting member 18 and the other side of the lower mounting member 16 The state of the side surface 16b, and the front end portion 32 of the hook portion 26 is opposed to the one side surface 18a of the upper mounting member 18. In this case, after the mounting of the lever member 20 to the two mounting members 16, 18 is performed by advancing the bolt 22, when the bolt 22 is rotated, the lever member 20 is rotated counterclockwise around the upper mounting member 18. The direction of rotation, and the other end 30 of the lever member 20 will be pressed against the lower erecting member 16, and by the hook portion 26 of the lever member 20, more specifically, the front end portion 32 is brought to the upper steel frame 14 Come to level external forces. Thereby, the upper steel frame 14 is horizontally moved relative to the lower steel frame 12, and the alignment difference of the upper steel frame 14 with respect to the lower steel frame 12 can be corrected or eliminated.

According to an example in which the lever member 20 of the auxiliary tool 10 is formed of a plate body, the auxiliary tool 10 can be provided in the fall prevention assisting device 38 (Fig. 3) and the upper and lower two. Between the steel frames 12 and 14, the fall prevention auxiliary device 38 may be attached to the upper and lower two mounting members 16 and 18 in order to prevent the upper steel frame 14 from falling over. However, instead of the illustrated example, the lever member 20 may be formed of a rod-shaped body, for example, a rod-shaped body 24 that extends straight and a rod-shaped hook portion that extends from the body into an L shape. 26 constituents.

Claims (2)

An auxiliary device for correcting a positional difference between a steel frame below a column for a previously disposed column and a steel frame for attaching a column to a steel frame of the lower side; wherein the auxiliary The lever member is composed of a lever member and a bolt; the lever member has one end portion and the other end portion, and is capable of facing the two plate-shaped mounting members on one side of the two plate-shaped mounting members, respectively. Two plate-like erecting members are respectively disposed at the ends of the two steel frames; and the hook portions are passed between the two erecting members to be opposite to the two erecting members on the other side of the two erecting members And a bolt facing the one end portion; the bolt is screwed to one end of the lever member, and has a front end portion that can face one of the two mounting members; the one end portion and the hook portion The distance between the front end portions is larger than the distance between the other end portion and the front end portion of the aforementioned hook portion. The auxiliary tool according to claim 1, wherein the lever member is composed of a plate body.