JP2024052019A - Position adjustment jig and position adjustment unit - Google Patents

Abstract

[Problem] To provide a position adjustment jig that can suitably adjust the horizontal position of a column (column base) while having a simple structure. [Solution] A position adjustment jig 1 is used for adjusting the horizontal position of a column at a column base installed in the middle or at a corner between foundations of a building. The position adjustment jig 1 is attached so as to be interposed between the lower end of a column B2 in the horizontal direction and a foundation part provided at a position facing the lower end of the column. The position adjustment jig 1 includes an abutment part 11 that abuts against the side surface of the foundation part on the column B2 side, and a position adjustment part 13 that protrudes from the abutment part toward the lower end of the column and is provided in a state in which the protruding length from the abutment part can be changed. The position adjustment jig 1 adjusts the horizontal position of the column by increasing the protruding length of the position adjustment part 13, thereby pressing against the lower end of the column B2 or a column base plate B3 fixed to the lower end of the column. [Selected Figure] Figure 3

Description

The present invention relates to a position adjustment jig and a position adjustment unit, and in particular to a position adjustment jig and a position adjustment unit used to adjust the horizontal position of a column at the base of a building.

One type of column base that supports the superstructure of a building is the exposed column base.
An exposed-type column base is mainly composed of a column that supports the superstructure, a column base plate that is fixed to the lower end of the column, and an anchor bolt that is partially embedded in the foundation (column base foundation) and connected to the column base plate.
In this context, a position adjustment jig has been proposed for adjusting the horizontal position of a column and a column base plate relative to the foundation (see, for example, Patent Documents 1 and 2).

The position adjustment jig (position adjustment device) described in Patent Documents 1 and 2 is used to adjust the horizontal position of a column at the base of a building, and is attached so as to be interposed between the column (base) and the foundation.
Specifically, the position adjustment jig has a pillar holding part that surrounds and holds the lower end of the pillar, and a foundation fixing part that is fixed to the upper surface of the foundation. By adjusting the position of the pillar holding part relative to the foundation fixing part, the lower end of the pillar can be pressed from the side, adjusting the horizontal position of the pillar.

JP 2000-160682 A JP 2006-299587 A

Incidentally, the position adjustment jigs (position adjustment devices) as disclosed in Patent Documents 1 and 2 have a relatively large structure for adjusting the horizontal position of the pillar. For example, in order to adjust the horizontal position of the pillar, the structure is such that the lower end of the pillar is held so as to be surrounded from all sides.
Therefore, there was a need for a position adjustment jig that was simple in configuration but could adjust the horizontal position of a column by appropriately pressing the lower end of the column or the column base plate fixed to the lower end of the column.
There was also a need for a position adjustment jig that could suitably fine-tune the horizontal position of the column at its base.

The present invention has been made in consideration of the above-mentioned problems, and an object of the present invention is to provide a position adjustment jig and a position adjustment unit that are simple in configuration but can suitably adjust the horizontal position of a pillar (base).
Another object of the present invention is to provide a position adjustment jig and a position adjustment unit that are capable of suitably fine-adjusting the horizontal position of a pillar (pillar base).

The above problem is solved by the position adjustment tool of the present invention, which is used to adjust the horizontal position of a column at a column base installed in the middle or at a corner between the foundations of a building, and which is attached so as to be interposed horizontally between the lower end of the column and a foundation part provided at a position opposite the lower end of the column, and which comprises an abutment part that abuts against the side of the foundation part on the column side, and a position adjustment part that protrudes from the abutment part toward the lower end of the column and is provided in a state in which the protruding length from the abutment part can be changed, and by increasing the protruding length of the position adjustment part, it is possible to press against the lower end of the column or a column base plate fixed to the lower end of the column, thereby adjusting the horizontal position of the column.
With the above configuration, a position adjustment jig can be realized that is simple in configuration but is capable of suitably adjusting the horizontal position of the pillar.
In detail, the position adjustment jig has an abutment part that abuts against the side surface of the foundation part on the column side, and a position adjustment part that protrudes from the abutment part toward the lower end of the column and can change the protruding length from the abutment part. Therefore, while directly receiving a reaction force from the foundation part in the horizontal direction, it can efficiently press the lower end of the column or the column base plate, and adjust the position of the column. In addition, the position adjustment jig can be made to have a simple shape (compact shape).
In addition, by using the position adjustment jig, after the column is temporarily fixed to the foundation, the horizontal position of the column with respect to the foundation can be adjusted while holding the column (column base plate). Then, the column can be permanently fixed.

In this case, a second abutment portion is further provided extending from the upper portion of the abutment portion along the upper surface of the foundation portion and abutting against the upper surface of the foundation portion, and the lower end of the column or the column base plate is pressed by lengthening the protruding length of the position adjustment portion while the abutment portion and the second abutment portion are abutted against the foundation portion.
With the above-mentioned configuration, the reaction force from the foundation part can be received by the abutment part and the second abutment part, and the lower end part of the column or the column base plate can be pressed more efficiently. As a result, the horizontal position of the column can be suitably adjusted.

In this case, the position adjustment portion includes an extension member extending from the abutment portion toward the lower end of the pillar, and a position adjustment bolt that is screwed into a screw hole formed inside the extension member and is configured to change the protrusion length by adjusting the screwing position relative to the screw hole.
With the above-described configuration, the horizontal position of the pillar can be suitably fine-tuned despite the simple configuration.

Furthermore, according to the position adjustment unit of the present invention, the above-mentioned problem can also be solved by a position adjustment unit comprising the above-mentioned position adjustment jig and a second position adjustment jig attached so as to be interposed between the column base plate and an anchor bolt connecting the column base plate to a foundation, wherein the second position adjustment jig comprises a main body portion located horizontally outboard of the column base plate, a clamping portion protruding from the main body portion toward the anchor bolt and clamping the anchor bolt in the horizontal direction, and a second position adjustment portion protruding from the main body portion toward a side surface of the column base plate and provided in a state in which the protruding length from the main body portion can be changed, and by increasing the protruding length of the second position adjustment portion, the column base plate is pressed and the horizontal position of the column is adjusted.
With the above configuration, a position adjustment unit can be realized that can receive a reaction force from the foundation part using a position adjustment jig to press the column base plate, and can also receive a reaction force from the anchor bolt using a second position adjustment jig to press the column base plate.

In this case, the second position adjustment jig protrudes from the main body portion toward the base plate and is provided with an insertion portion for inserting the outer edge portion of the base plate in the vertical direction, and the second position adjustment portion is a second position adjustment bolt that is screwed into a screw hole formed in the main body portion and whose protruding length can be changed by adjusting the screwing position relative to the screw hole, and the second position adjustment jig may clamp the anchor bolt in the clamping portion and press the base plate by lengthening the protruding length of the second position adjustment bolt with the outer edge portion of the base plate inserted into the insertion portion.
With the above-described configuration, the horizontal position of the pillar can be suitably fine-tuned despite the simple configuration.

Furthermore, according to the position adjustment unit of the present invention, the above problem can also be solved by a position adjustment unit comprising the above-mentioned position adjustment jig and a third position adjustment jig attached so as to be interposed between the column base plate and a column support connecting the column base plate to a foundation, wherein the third position adjustment jig comprises a main body portion located horizontally outboard of the column base plate, a hook portion that penetrates from the main body portion to a position lower than the column base plate, protrudes from the main body portion toward the column support and is hooked onto an edge of the column support, and a third position adjustment portion that protrudes from the main body portion toward the side of the column base plate and is provided in a state in which the protruding length from the main body portion can be changed, and by increasing the protruding length of the third position adjustment portion, the column base plate is pressed and the horizontal position of the column is adjusted.
With the above configuration, a position adjustment unit can be realized that can receive a reaction force from the foundation part using the position adjustment jig to press the column base plate, and can also receive a reaction force from the column support using the third position adjustment jig to press the column base plate.

In this case, the main body portion is a long main body wall portion that extends along the side of the column base plate, and the third position adjustment portion is a third position adjustment bolt that is screwed into a screw hole formed in the main body wall portion and enables the protruding length to be changed by adjusting the screwing position relative to the screw hole, and it is preferable that the third position adjustment bolts are arranged at intervals in the longitudinal direction of the main body wall portion.
With the above-described configuration, the horizontal position of the pillar can be suitably fine-tuned despite the simple configuration.

According to the position adjustment jig and position adjustment unit of the present invention, it is possible to suitably adjust the horizontal position of a pillar (pillar base) while having a simple configuration.
It also becomes possible to suitably fine-tune the horizontal position of the pillar (pillar base).

This is an oblique view of a column base installed at a corner between the foundations of a building. FIG. 2 is an exploded perspective view of FIG. 1 , showing a state in which the column support and the anchor bolt are partially embedded in the foundation. FIG. 2 is a diagram showing a state in which a position adjustment unit is attached to the column base of FIG. 1 . FIG. 2 is a diagram showing a state in which a position adjustment jig is attached to the column base of FIG. 1 . FIG. FIG. 2 is a diagram showing a state in which a second position adjustment jig is attached to the column base of FIG. 1 . FIG. 2 is a diagram showing a state in which a second position adjustment jig is attached to the column base of FIG. 1 . FIG. 13 is a perspective view of a second position adjustment jig. FIG. 2 is a diagram showing a state in which a third position adjustment jig is attached to the column base of FIG. 1 . FIG. 13 is a perspective view of a third position adjustment jig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
This embodiment relates to a "position adjustment jig" that is used to adjust the horizontal position of a column at a column base installed in the middle (corner) between the foundations of a building, and has an abutment part that abuts against the side surface of the column at the foundation part, and a position adjustment part that protrudes from the abutment part toward the lower end of the column and is provided in a state in which the protruding length from the abutment part can be changed, and is characterized in that the "position adjustment jig" adjusts the horizontal position of the column by pressing the lower end of the column (column base plate) by lengthening the protruding length of the position adjustment part. Also, the embodiment relates to a "position adjustment unit" equipped with the position adjustment jig.
First, the base of the column will be described, and then the position adjustment jig (position adjustment unit) will be described.

<Column base>
As shown in Figures 1 and 2, the column base B1 is an exposed column base, and is installed on the upper surface of a reinforced concrete foundation F (column base foundation F1) in the building B.
More specifically, the column base B1 is installed on the top surface of the column base foundation F1 at a corner between the continuous footings F2. The column base foundation F1 is formed to be wider than the continuous footings F2 and lower in the height direction than the continuous footings F2.
In addition, the column base B1 may be installed in the middle between the slab foundations F2.

The column base B1 is mainly composed of a steel column B2 that supports the superstructure of building B, a column base plate B3 that is fixed to the lower end of column B2, and a number of anchor bolts B4 and column supports B5 that are each partially embedded in foundation F (column base foundation F1) and connected to column base plate B3.

The column B2 has a rectangular cross section and is connected to a steel column (not shown) that supports the superstructure of the building B. The column B2 is attached to the upper surface of the column base F1 via a column base plate B3, an anchor bolt B4, and a column support B5.
The column base plate B3 is made of a rectangular plate member, and the column B2 is fixed to the center of the column base plate B3 by passing through it. Assembly holes B3a are formed in the four corners of the upper surface of the column base plate B3, and anchor bolts B4 are attached by passing through the assembly holes B3a.
In addition, at predetermined positions between the four corners on the upper surface of the column base plate B3, there are formed an injection hole for injecting grout material (not shown) and an air vent hole for ventilating when injecting the grout material.

The anchor bolt B4 is embedded in the column base foundation F1 and is disposed so as to partially protrude from the upper surface of the column base foundation F1. The column base plate B3 is assembled to the foundation F by tightening the fastening nut B6 with the protruding portion of the anchor bolt B4 penetrating the column base plate B3.
The column support B5, also called a shear metal, is disposed in the center of the column B2 and is surrounded by a number of anchor bolts B4. Like the anchor bolts B4, the column support B5 is embedded in the column base F1 so that a part of it protrudes from the top surface of the column base F1.
The column support B5 is assembled to an assembly frame B3b provided in the central portion of the bottom surface of the column base plate B3.
In other words, the column base plate B3 is assembled to the foundation F by the anchor bolt B4 and the column support B5 partially embedded in the column base foundation F1.

In the above configuration, the horizontal position of the column base plate B3 may be slightly misaligned with respect to the foundation F. Specifically, when the anchor bolt B4 and the column support B5 fixed to the foundation F are assembled to the column base plate B3 (assembly hole B3a, assembly frame B3b) fixed to the lower end of the column B2, the horizontal position of the column base plate B3 may be slightly misaligned due to an assembly error (clearance).
Therefore, in this embodiment, after temporarily fixing the column B2 to the foundation F (after temporarily fastening with the fastening nut B6), the position adjustment unit 1 is used to fine-tune the horizontal position of the column base plate B3 relative to the foundation F, thereby enabling accurate positioning of the column B2 and final fixation of the column B2 in the positioned state.

<Position adjustment unit>
As shown in FIG. 3, the position adjustment unit 1 adjusts the horizontal position of the column B2 by receiving a reaction force from the foundation F side in the horizontal direction and pressing the column base plate B3 of the column base B1.
The position adjustment unit 1 includes a position adjustment jig 10 , a second position adjustment jig 20 , and a third position adjustment jig 30 .

The position adjustment jig 10 is attached so as to be interposed between the lower end (column base plate B3) of the column B2 and a foundation part (strip footing F2) provided at a position opposite the column base plate B3 in the horizontal direction. The position adjustment jig 10 receives a reaction force from the strip footing F2 and presses the column base plate B3, fixing the horizontal position of the column base plate B3 and fine-adjusting the horizontal position.
The second position adjustment jig 20 is attached so as to be interposed between the anchor bolt B4 and the column base plate B3. The second position adjustment jig 20 receives a reaction force from the anchor bolt B4 and presses the column base plate B3, thereby fixing the horizontal position of the column base plate B3 and fine-adjusting the horizontal position.
The third position adjustment jig 30 is attached so as to be interposed between the column support B5 and the column base plate B3. The third position adjustment jig 30 receives a reaction force from the column support B5 and presses the column base plate B3, thereby fixing the horizontal position of the column base plate B3 and fine-adjusting the horizontal position.

In this embodiment, the position adjustment unit 1 is composed of four position adjustment fixtures 10, one second position adjustment fixture 20, and one third position adjustment fixture 30, but is not particularly limited thereto.
For example, the position adjustment unit 1 may include only the position adjustment jig 10 out of the three position adjustment jig 10, 20, and 30. Alternatively, the position adjustment unit 1 may include only the position adjustment jig 10 and the second position adjustment jig 20, or may include only the position adjustment jig 10 and the third position adjustment jig 30. Alternatively, the position adjustment unit 1 may include only the second position adjustment jig 20 and the third position adjustment jig 30.
For example, the position adjustment unit 1 may include a plurality of position adjustment tools 10 and a plurality of second position adjustment tools 20. Alternatively, the position adjustment unit 1 may include one position adjustment tool 10, one second position adjustment tool 20, and a plurality of third position adjustment tools 30.
In other words, it can be changed as appropriate depending on the installation location of the column base B1 installed between the foundations F, the initial position of the column base plate B3, etc.

As shown in Figures 4 and 5, the position adjustment jig 10 includes an abutment wall portion 11 that abuts against the side surface of the column B2 in the slab F2, a second abutment wall portion 12 that extends from the upper end of the abutment wall portion 11 along the upper surface of the slab F2 and abuts against the upper surface of the slab F2, and a position adjustment portion 13 that protrudes from the abutment wall portion 11 toward the column base plate B3 and is provided in such a way that the protruding length from the abutment wall portion 11 can be changed.

The contact wall portion 11 extends long in the vertical direction and is disposed along the side surface of the continuous footing F2. The contact wall portion 11 is disposed at a position facing the side surface of the column base plate B3.
The second abutment wall portion 12 extends perpendicular to the abutment wall portion 11 and is supported from below by the slab foundation F2.

The position adjustment portion 13 has an extension member 13a extending from the lower end of the abutment wall portion 11 toward the column base plate B3, and a position adjustment bolt 13c screwed into a screw hole 13b formed inside the extending end of the extension member 13a and protruding toward the column base plate B3.
The extension member 13 a is, for example, a high nut having a screw hole 13 b , and is welded to the lower end of the abutment wall portion 11 and extends perpendicular to the abutment wall portion 11 .
The position adjustment bolt 13c is attached to the extension member 13a, and is configured so that the projection length can be changed by adjusting the screw engagement position with respect to the screw hole 13b.

In the above configuration, the position adjustment jig 10 can press the column base plate B3 by increasing the protruding length of the position adjustment portion 13 while the abutment wall portion 11 and the second abutment wall portion 12 are abutted against the slab foundation F2.
In this way, the position adjustment jig 10 receives a direct reaction force from the slab foundation F2 in the horizontal direction and efficiently presses the column base plate B3, fixing the horizontal position of the column base plate B3 and also fine-tuning that horizontal position.

As shown in Figures 6A to 7, the second position adjustment jig 20 comprises a main body wall portion 21 located horizontally outboard of the column base plate B3, a bottom wall portion 22, an intermediate wall portion 23 and an upper wall portion 24 each provided on the side of the main body wall portion 21 and extending perpendicular to the main body wall portion 21, and a connecting wall portion 25 and a second connecting wall portion 25a connecting the intermediate wall portion 23 and the upper wall portion 24.
The connecting wall portion 25 connects the extending end portions of the intermediate wall portion 23 and the upper wall portion 24. The second connecting wall portion 25a connects the intermediate portion of the intermediate wall portion 23 and the upper wall portion 24 in the extending direction.
The main body wall 21, the intermediate wall 23, the upper wall 24 and the second connecting wall 25a form a closed cross-sectional structure, which increases the rigidity of the second position adjustment jig.

The second position adjustment jig 20 also includes a bolt clamping portion 26 that clamps the anchor bolt B4, a plate insertion portion 27 that inserts the outer edge of the column base plate B3 in the vertical direction, a nut insertion portion 28 that inserts the fastening nut B6 in the horizontal direction, and a second position adjustment bolt 29 that protrudes from the main body wall portion 21 toward the side of the column base plate B3 and is provided in a state in which the protruding length from the main body wall portion 31 can be changed.

The bolt clamping portion 26 is provided on the extending end portion of the bottom wall portion 22, and is formed by cutting out a part of the outer edge of the extending end portion.
The bolt clamping portion 26 is attached so as to sandwich the anchor bolt B4 therebetween, and clamps the anchor bolt B4 in the horizontal direction.

The plate insertion section 27 is formed by the main body wall section 21, the bottom wall section 22, and the intermediate wall section 23, and has an internal space surrounded by these walls 21 to 23. The outer edge (corner) of the column base plate B3 is housed in the internal space.
In other words, the plate insertion portion 27 allows the outer edge (corner) of the column base plate B3 to be inserted between them in the vertical direction, and the outer edge of the column base plate B3 can be held in the vertical and horizontal directions.

The nut insertion portion 28 is provided on the extending end portion of the upper wall portion 24, and is formed by cutting out part of the outer edge of the extending end portion.
The nut insertion portion 28 is provided so as to sandwich the fastening nut B6 therebetween, and is disposed so as to surround the anchor bolt B4 in the horizontal direction.
A predetermined gap (clearance) is formed between the edge of the nut insertion portion 28 and the fastening nut B6. Therefore, the fastening nut B6 can be rotated without interfering with the edge of the nut insertion portion 28.

The second position adjustment bolt 29 is screwed into a screw hole 21a formed in the main body wall portion 21, and is configured to change the protruding length by adjusting the screwing position relative to the screw hole 21a.

In the above configuration, the second position adjustment jig 20 can press the column base plate B3 by clamping the anchor bolt B4 in the bolt clamping portion 26 and inserting the outer edge of the column base plate B3 into the plate insertion portion 27, and by lengthening the protruding length of the second position adjustment bolt 29.
In this way, the second position adjustment jig 20 receives a reaction force from the anchor bolt B4 and presses the column base plate B3, thereby fixing the horizontal position of the column base plate B3 and also enabling fine adjustment of the horizontal position.

In addition, in the above configuration, as shown in Figure 6A, the clamping direction by the bolt clamping portion 26, the insertion direction of the column base plate B3 by the plate insertion portion 27, and the protruding direction by the second position adjustment bolt 29 are aligned in the same direction in the horizontal direction.
In this way, the second position adjustment jig 20 can be firmly attached to the column base plate B3 and the anchor bolt B4. As a result, the second position adjustment jig 20 can suitably fix the horizontal position of the column base plate and also suitably finely adjust the horizontal position.

As shown in Figures 8 and 9, the third position adjustment jig 30 comprises a main body wall portion 31 located horizontally outboard of the column base plate B3, an extension wall portion 32 extending from the lower end of the main body wall portion 31 toward the column support B5, a hook portion 33 provided at the extension end of the extension wall portion 32 and hooked onto the edge of the column support B5, and a third position adjustment bolt 34 protruding from the main body wall portion 31 toward the side of the column base plate B3 and provided in a state in which the protruding length from the main body wall portion 31 can be changed.

The main body wall portion 31 extends longitudinally along the side surface of the column base plate B3 and is disposed in a position facing the side surface of the column base plate B3.
The extending wall portion 32 is provided at the lower end of the main body wall portion 31, and extends perpendicular to the main body wall portion 31. The extending wall portion 32 enters a position lower than the column base plate B3, and protrudes toward the column support B5.
The hook portion 33 is formed in a key shape (hook shape) and hooked to an edge of the column support B5. Specifically, the hook portion 33 is hooked so as to surround one corner of the column support B5.

The third position adjustment bolt 34 is screwed into a screw hole 31a formed in the body wall portion 31, and is configured so that the projection length can be changed by adjusting the screwing position with respect to the screw hole 31a.
A plurality of screw holes 31a are formed in the body wall portion 31 at intervals in the longitudinal direction of the body wall portion 31. In other words, a plurality of third position adjustment bolts 34 are arranged at intervals in the longitudinal direction of the body wall portion 31.

In the above configuration, the third position adjustment jig 30 can press the column base plate B3 from the side by increasing the protruding length of the third position adjustment bolt 34 while the column support B5 is hooked onto the hook portion 33.
In this way, the third position adjustment jig 30 receives a reaction force from the column support B5 and presses the column base plate B3, thereby fixing the horizontal position of the column base plate B3 and also enabling fine adjustment of that horizontal position.

<How to adjust the position of the pillars>
In the above configuration, in order to adjust the horizontal position of the pillar B2 relative to the foundation F, it is preferable to use the position adjustment unit 1 as follows.

First, as shown in Figures 1 and 2, the column B2 and column base plate B3 are temporarily fixed to the foundation F. Specifically, the column base plate B3 is temporarily fixed to the anchor bolt B4 and column support B5 embedded in the foundation F. More specifically, the column base plate B3 (assembly hole B3a) is inserted through the anchor bolt B4, and temporarily fastened with the fastening nut B6. In addition, the column base plate B3 (assembly frame B3b) is assembled to the column support B5.

Then, as shown in Figures 3 and 4, multiple position adjustment jigs 10 are assembled to receive a reaction force from the foundation F (strip foundation F2) and press the column base plate B3 from the side, thereby fixing the horizontal position of the column base plate B3.
As shown in Figures 3, 6A and 6B, the second position adjustment jig 20 is further assembled, and receives a reaction force from the anchor bolt B4 to press the column base plate B3 from the side, thereby fixing the horizontal position of the column base plate B3.
Furthermore, as shown in Figures 3 and 8, a third position adjustment jig 30 is further assembled to receive a reaction force from the column support B5 and press the column base plate B3 from the side, thereby fixing the horizontal position of the column base plate B3.

Then, the protruding length of the position adjustment bolt 13c of the predetermined position adjustment jig 10 is increased to press the column base plate B3 more firmly, thereby fine-tuning the horizontal position of the column base plate B3.
Specifically, an operator uses a tool such as a wrench to rotate the position adjustment bolt 13c, thereby increasing the protruding length of the position adjustment bolt 13c, thereby pushing out the column base plate B3.

After fine-tuning the horizontal positions of the column B2 and the column base plate B3, the column B2 and the column base plate B3 are finally fixed. Specifically, they are finally fastened using the fastening nuts B6.

The method for adjusting the horizontal position of the pillar B2 is not limited to the above method.
It is also possible to appropriately change the order in which the position adjustment jigs 10, 20, and 30 are assembled. Alternatively, the second position adjustment jig 20 or the third position adjustment jig 30 may be used to finely adjust the horizontal position of the column base plate B3.
In addition, by using the position adjustment jig 10, the column base plate B3 can be efficiently pressed while receiving a direct reaction force from the foundation F (strip foundation F2) in the horizontal direction. Therefore, it is preferable to finely adjust the horizontal position of the column base plate B3 using the position adjustment jig 10.

<Other embodiments>
In the above embodiment, as shown in FIG. 3, the position adjustment jigs 10, 20, and 30 are configured to press the column base plate B3, but this is not particularly limited and they may be configured to press the column B2 (the lower end of the column B2).
In addition, by pressing the column base plate B3 instead of the column B2, the position adjustment jigs 10, 20, and 30 can be made to have a simple shape (compact shape).

In the above embodiment, as shown in Figures 3 and 4, the position adjustment jig 10 receives a reaction force mainly from the side surface of the slab F2 (the side surface on the column B2 side), but this is not particularly limited.
The position adjustment jig 10 may receive the reaction force from the upper surface of the strip foundation F2, or from the outer surface in the width direction of the strip foundation F2. Alternatively, the position adjustment jig 10 may receive the reaction force from the upper surface or the outer surface of the column base foundation F1.
Preferably, the position adjustment jig 10 can efficiently press the column base plate B3 by receiving a reaction force mainly from the side surface of the slab F2 (the side surface on the column B2 side). Also, the position adjustment jig 10 can be made compact in size.

In the above embodiment, as shown in Figures 3 and 4, the position adjustment jig 10 is equipped with a position adjustment unit 13 consisting of a bolt and nut mechanism, but is not particularly limited thereto, and may be equipped with a position adjustment unit 13 consisting of other known mechanisms.
For example, the position adjustment portion 13 may be a position adjustment member that has a slide mechanism and can be locked at a predetermined position.
Similarly, the position adjustment means of the second position adjustment jig 20 and the third position adjustment jig 30 do not have to be limited to the bolt and nut mechanism.

In the above embodiment, as shown in Fig. 3, the horizontal positions of the column B2 and the column base plate B3 are fixed and the horizontal positions are finely adjusted by assembling the position adjustment jigs 10, 20, and 30. On the other hand, another method may be used for fixing the column B2 and the column base plate B3.
For example, the horizontal positions of the column B2 and the column base plate B3 may be determined by inserting a rod-shaped member (steel rod) into the gap (clearance) between the anchor bolt B4 and the assembly hole B3a of the column base plate B3. In this way, the horizontal position of the column base plate B3 can be easily fixed. Then, the horizontal position of the column base plate B3 can be fine-tuned using the position adjustment jig 10.

In the above embodiment, the position adjustment jigs 10, 20, and 30 are used to adjust the horizontal position of the column B2 relative to the foundation F, but the use is not limited to this.
For example, when joining a pillar and a beam (girder) in a building construction work, it is necessary to adjust the horizontal position of the beam because it is necessary to set the beam against the pillar. In such a case, the position adjustment jigs 10, 20, 30 may be used.
By using this position adjustment jig, the beam can be pulled in appropriately when it is in an open state relative to the column, allowing the horizontal position of the beam to be fine-tuned.
In this case, it is preferable that the position adjustment jig 10 or the second position adjustment jig 20 has an abutment portion that abuts against the upper surface of the beam, and has an assembly portion (assembly bolt) for assembling the abutment portion and the upper surface of the beam. It is also preferable that the position adjustment jig 10, 20 further has a hook portion that is hooked onto the edge of the column.

In the above embodiment, the position adjustment jig and the position adjustment unit according to the present invention have been mainly described.
However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit of the present invention, and the present invention naturally includes equivalents thereof.

F Foundation F1 Column base foundation F2 Strip foundation B Building B1 Column base B2 Column B3 Column base plate B3a Assembly hole B3b Assembly frame B4 Anchor bolt B5 Column support (shear hardware)
B6 Fastening nut (fastening member)
1 Position adjustment unit 10 Position adjustment jig 11 Contact wall portion (contact portion)
12 Second abutment wall portion (second abutment portion)
13 Position adjustment portion 13a Extension member 13b Screw hole 13c Position adjustment bolt 20 Second position adjustment jig 21 Body wall portion (body portion)
21a Screw hole 22 Bottom wall portion 23 Intermediate wall portion 24 Upper wall portion 25 Connecting wall portion 25a Second connecting wall portion 26 Bolt clamping portion (clamping portion)
27 Plate insertion section (insertion section)
28 Nut insertion portion 29 Second position adjustment bolt (second position adjustment portion)
30 Third position adjustment jig 31 Main body wall portion (main body portion)
31a Screw hole 32 Extension wall portion (extension portion)
33 Hook stop portion 34 Third position adjustment bolt (third position adjustment portion)

Claims (7)

A position adjustment tool used to adjust the horizontal position of a column at a column base installed in the middle or at a corner between the foundations of a building,
the position adjustment jig is attached so as to be interposed between a lower end of the column and a base portion provided at a position opposite to the lower end of the column in a horizontal direction,
An abutment portion that abuts against a side surface of the foundation portion on the column side;
a position adjustment portion that protrudes from the contact portion toward the lower end of the column and is provided in a state in which the protruding length from the contact portion can be changed;
A position adjustment jig characterized by increasing the protruding length of the position adjustment part to press against the lower end of the column or a column base plate fixed to the lower end of the column, thereby adjusting the horizontal position of the column. A second abutment portion extends from an upper portion of the abutment portion along the upper surface of the base portion and abuts against the upper surface of the base portion,
The position adjustment jig described in claim 1, characterized in that the protruding length of the position adjustment part is increased while the abutment portion and the second abutment portion are abutted against the foundation portion, thereby pressing the lower end of the column or the column base plate. The position adjustment unit is
an extension member extending from the abutment portion toward a lower end portion of the pillar;
The position adjustment jig described in claim 2, characterized in that it is further provided with a position adjustment bolt that is screwed into a screw hole formed inside the extension member and is configured to change the protrusion length by adjusting the screwing position relative to the screw hole. The position adjustment jig according to any one of claims 1 to 3,
A position adjustment unit including: a second position adjustment jig attached so as to be interposed between the column base plate and an anchor bolt connecting the column base plate to a foundation;
The second position adjustment jig is
A main body portion located horizontally outboard of the column base plate;
a clamping portion that protrudes from the main body portion toward the anchor bolt and clamps the anchor bolt in a horizontal direction;
A second position adjustment part that protrudes from the main body part toward a side surface of the column base plate and is provided in a state in which the protruding length from the main body part can be changed,
A position adjustment unit characterized by increasing the protruding length of the second position adjustment part to press the column base plate and adjust the horizontal position of the column. The second position adjustment jig includes an insertion portion that protrudes from the main body portion toward the column base plate and inserts an outer edge portion of the column base plate in the vertical direction,
the second position adjustment portion is a second position adjustment bolt that is screwed into a screw hole formed in the main body portion and that can change a protruding length by adjusting a screwing position with respect to the screw hole,
The position adjustment unit described in claim 4, characterized in that the second position adjustment jig presses the column base plate by increasing the protruding length of the second position adjustment bolt while clamping the anchor bolt in the clamping portion and inserting the outer edge of the column base plate into the insertion portion. The position adjustment jig according to any one of claims 1 to 3,
A position adjustment unit including: a third position adjustment jig that is attached so as to be interposed between the column base plate and a column support that connects the column base plate to a foundation;
The third position adjustment jig is
A main body portion located horizontally outboard of the column base plate;
A hook portion that is inserted from the main body portion into a position lower than the column base plate, protrudes toward the column support, and is hooked onto an edge of the column support;
A third position adjustment part that protrudes from the main body part toward a side surface of the column base plate and is provided in a state in which a protruding length from the main body part can be changed,
A position adjustment unit characterized by increasing the protruding length of the third position adjustment part to press the column base plate and adjust the horizontal position of the column. The main body portion is a long main body wall portion along a side surface of the column base plate,
the third position adjustment portion is a third position adjustment bolt that is screwed into a screw hole formed in the main body wall portion and that can change a protruding length by adjusting a screwing position with respect to the screw hole,
The position adjustment unit according to claim 6 , wherein the third position adjustment bolts are arranged at intervals in the longitudinal direction of the main body wall portion.

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