Column base position adjustment jig

Abstract

The present invention provides a column base position adjustment jig that allows for adjustment of the column base position relative to the foundation even when foundation beams are not provided, and that also allows for flexible adjustment of the height at which the position adjustment is performed. [Solution] The column base position adjustment jig 1 is used to adjust the horizontal position of the column base B relative to the column base foundation F1. The column base position adjustment jig 1 comprises an anchor bolt contact member 2 that abuts against an anchor bolt F11 fixed to the column base foundation F1 and is positioned relative to the anchor bolt F11; a position adjustment member 3 that is displaceably fixed to the anchor bolt contact member 2 and abuts against the column base B to adjust the position of the column base B; and a support member 6 that supports the anchor bolt contact member 2 and the position adjustment member 3 in a height that can be changed.

Description

Technical Field

[0001] The present invention relates to a column base position adjusting jig, and particularly to a column base position adjusting jig used for adjusting the position of a column base relative to a foundation. Background Art

[0002] The lower end of a column is called a column base, and is firmly fixed to the foundation, which is the substructure, to support a building. Conventionally, a method called "exposed type" that fixes a column base to a foundation by connecting an anchor bolt embedded in the foundation to a base plate fixed to the column base has been widespread. To explain the method for fixing an exposed column base: the base plate is formed with an assembly hole through which an anchor bolt can be inserted, and the column base is assembled to the foundation via the base plate by inserting the anchor bolt through the assembly hole and tightening it. At this time, in order to fix the column base at an accurate position, work for adjusting the position of the column base is required.

[0003] Patent Document 1 describes a position adjusting jig capable of adjusting the position of a column base relative to a foundation. The position adjusting jig described in Patent Document 1 is attached between a foundation and a column base, and includes an extending member whose protruding length from the foundation can be changed. An operator can align the position of the column base by changing the extension length of the extending member relative to the foundation. Prior Art Documents Patent Documents

[0004] Patent Document 1 Japanese Unexamined Patent Application Publication No. 2024-052019 Outline of the Invention Problems to be Solved by the Invention

[0005] Although the position of the column base can be adjusted using the position adjustment jig described in Patent Document 1, further improvements were desired. Specifically, when adjusting the position of the column base using the position adjustment jig described in Patent Document 1, a foundation beam is required to attach the position adjustment jig, and there was a problem that the position of the column base could not be adjusted from a direction in which a foundation beam was not provided. In addition, conventional position adjustment jigs had to be attached to a predetermined position on the foundation beam, and there was a problem that the position could not be properly adjusted when the height of the base plate was not constant.

[0006] The present invention has been made in view of the above-mentioned problems, and the object of the present invention is to provide a column base position adjustment jig that can adjust the position of the column base relative to the foundation even when a foundation beam is not provided, and that can flexibly adjust the height at which the position adjustment is performed. [Means for solving the problem]

[0007] The aforementioned problems are solved by the column base position adjustment jig of the present invention, which is used to adjust the horizontal position of a column base with respect to a column base foundation, comprising: an anchor bolt contact member that abuts against an anchor bolt fixed to the column base foundation and is positioned relative to the anchor bolt; a position adjustment member that is displaceably fixed to the anchor bolt contact member and abuts against the column base to adjust the position of the column base; and a support member that supports the anchor bolt contact member and the position adjustment member in a height that can be changed.

[0008] According to the above configuration, the column base position adjustment jig includes an anchor bolt contact member that is positioned relative to the anchor bolt, and a position adjustment member that is displaceably fixed to the anchor bolt contact member and contacts the column base to adjust the position of the column base. Therefore, since the position adjustment member can be positioned relative to the anchor bolt to adjust the position of the column base, the position of the column base can be adjusted even if a foundation beam is not provided. Furthermore, the column base position adjustment jig includes a support member that allows the height of the anchor bolt contact member and the position adjustment member to be changed. Therefore, the height at which the position adjustment is performed can be flexibly adjusted.

[0009] Furthermore, the support member may have three or more leg members, and each leg member may have a threaded portion that screws into a threaded portion formed on the anchor bolt contact member, and a rotating operating portion that rotates the threaded portion. According to the above configuration, the support member has legs made of fastening bolts having a threaded portion and a rotating portion. Therefore, the operator can easily change the height of the position adjustment by rotating the rotating portion (the head of the fastening bolt). In addition, since the support member has three or more legs, it is possible to stably support the anchor bolt contact member and the position adjustment member.

[0010] Furthermore, it is preferable to provide a fixing member for fixing the position adjustment member to the anchor bolt contact member, and a connecting reinforcing member that connects the fixing member to the anchor bolt contact member and also connects the fixing member to the anchor bolt contact member. According to the above configuration, the position adjustment member can be attached to the anchor bolt contact member with high connection strength, making it possible to prevent damage to the position adjustment member and improve its durability.

[0011] Furthermore, the position adjustment member has a fixing member for fixing the position adjustment member to the anchor bolt contact member, the position adjustment member has a threaded portion that penetrates the fixing member, a threaded portion that engages with the fixing member, and a rotating operating portion for rotating the threaded portion, the rotating operating portion preferably protrudes in a direction away from the column base from the threaded portion of the fixing member. According to the above configuration, the position adjustment member is a fastening bolt having a threaded portion and a rotating portion, so the worker can easily adjust the position of the column base by rotating the rotating portion (the head of the fastening bolt). Furthermore, since the rotating portion protrudes away from the column base from the threaded portion, interference between the tool used during rotation and other members is suppressed, thereby improving work efficiency.

[0012] Furthermore, the anchor bolt contact member has an extended portion that extends in the direction of displacement in which the position adjustment member is displaced, the extended portion has an anchor bolt contact portion that contacts the anchor bolt, and the position adjustment member is preferably attached to the anchor bolt contact member at a position offset from the center in the horizontal direction perpendicular to the direction of displacement, in a direction away from the extended portion. The above configuration makes it possible to reduce the weight of the column base position adjustment jig while ensuring the necessary strength.

[0013] Furthermore, the anchor bolt contact member may have a positional displacement suppression portion that suppresses relative positional displacement of the anchor bolt contact member with respect to the anchor bolt. According to the above configuration, the misalignment of the anchor bolt contact portion relative to the anchor bolt is restricted, making it possible to suppress unintentional misalignment of the column base position adjustment jig. [Effects of the Invention]

[0014] The column base position adjustment jig of the present invention makes it possible to adjust the position of the column base relative to the foundation even when a foundation beam is not provided, and to provide a column base position adjustment jig that allows for flexible adjustment of the height at which the position adjustment is performed. [Brief explanation of the drawing]

[0015] [Figure 1] This is a perspective view showing the state after the column bases have been assembled to the building's foundation. [Figure 2] This is a perspective view showing the building before the column bases are attached to the foundation. [Figure 3] This is a perspective view of the column base position adjustment jig, seen from a diagonal front angle. [Figure 4] This is a perspective view of the column base position adjustment jig, seen from a diagonal rearward angle. [Figure 5] This is a top view of the column base position adjustment jig, seen from above. [Figure 6]It is a side view of the column base position adjustment jig viewed from the side. [Figure 7] It is an explanatory view viewed from the side for explaining a state where the column base position adjustment jig is attached to a column base foundation. [Figure 8] It is an explanatory view viewed from above for explaining a state where the column base position adjustment jig is attached to a column base foundation. [Figure 9] It is a perspective view showing a state where four column base position adjustment jigs are attached to a column base foundation. [Figure 10] It is a perspective view of the column base position adjustment jig according to a modified example viewed from obliquely forward. [Figure 11] It is a top view of the column base position adjustment jig according to a modified example viewed from above. [Figure 12] It is a side view of the column base position adjustment jig according to a modified example viewed from the side.

Mode for Carrying Out the Invention

[0016] Hereinafter, a column base position adjustment jig 1 according to one embodiment of the present invention (hereinafter, this embodiment) will be described with reference to FIGS. 1 to 12. However, the embodiment described below is merely an example for facilitating understanding of the present invention, and does not limit the present invention. That is, the present invention can be modified and improved without departing from the gist thereof, and it goes without saying that equivalents are included in the present invention.

[0017] In the following description, the "front-rear direction" is a direction that matches the front-rear direction as seen from an operator who adjusts the position of the column base B relative to the column base foundation F1 using the column base position adjustment jig 1, and matches the left-right direction in FIG. 6, which is a side view of the column base position adjustment jig 1. As will be described later, the position of the column base B relative to the column base foundation F1 is adjusted by being pushed forward. In addition, the "left-right direction" and the "width direction" are directions that match the left-right direction as seen from an operator who adjusts the position of the column base B relative to the column base foundation F1 using the column base position adjustment jig 1, and match the up-down direction in FIG. 5, which is a top view of the column base position adjustment jig 1. In addition, the "vertical direction" is the vertical direction of the column base foundation F1 and the column base B, and is a direction that matches the vertical direction.

[0018] <Overview of Foundation F and Column Base B> First, we will describe the outline of the building's foundation F and the column base B fixed to the foundation F, referring to Figures 1 and 2. As shown in Figures 1 and 2, the foundation F consists of a column base foundation F1 to which the column base B is fixed, and a foundation beam F2 extending laterally from the column base foundation F1. The column base foundation F1 is a foundation structure that supports the column base B. Anchor bolts F11 and column support members F12 (see Figure 2) are embedded in the column base foundation F1. The anchor bolts F11 and column support members F12 are used to assemble the column base B to the column base foundation F1. Furthermore, ground markings F3 are drawn on the upper surface of the column base foundation F1 to indicate the fixed position of column base B. Specifically, four ground markings F3 are drawn extending in four directions from the center of the column base foundation F1. Ground markings F3 are used when adjusting the position of column base B relative to the column base foundation F1.

[0019] The foundation beam F2 connects the column base foundations F1 and supports the building together with the column base foundations F1. The upper end of the foundation beam F2 is located above the upper end of the column base foundations F1. In Figures 1 and 2, the foundation beams F2 extend in opposite directions across the column base foundations F1, but the direction in which the foundation beams F2 extend is not limited to the directions shown in Figures 1 and 2.

[0020] Column base B is an exposed type column base. Specifically, column base B consists of column B1 and a base plate B2 located at the lower end of column B1. Column B1 is a square steel pipe. The base plate B2 is a steel plate fixed to the lower end of the column B1 by welding. The base plate B2 is provided with an assembly hole B2a and an assembly frame (not shown). The assembly hole B2a penetrates the base plate B2 vertically and has a diameter larger than the diameter of the anchor bolt F11 embedded in the column base foundation F1. The assembly frame is provided in the center of the lower surface of the base plate B2 and has a shape that corresponds to the column support F12 (shear fitting) embedded in the column base foundation F1. Therefore, as will be explained below, the column base B can be fixed to the column base foundation F1 via the base plate B2.

[0021] Four marking lines B3 are drawn on the side B2b of the base plate B2. Specifically, the marking lines B3 extend vertically from the center of the side B2b of the base plate B2. Marking lines B3 are used when positioning the column base B relative to the column base foundation F1.

[0022] When fixing column base B to column base foundation F1, column base B is first suspended from above and lowered over column base foundation F1. Then, column support F12 is assembled to the assembly frame, and anchor bolts F11 are inserted through assembly holes B2a and fastened with fastening nuts F13, thereby allowing column base B to be assembled to column base foundation F1. Here, the diameter of the assembly hole B2a is larger than the diameter of the anchor bolt F11. As a result, column base B may be assembled in a position that is horizontally off-center relative to column base foundation F1. More specifically, it may be assembled in a position different from the correct position where the four ground markings F3 drawn on column base foundation F1 and the four marking lines B3 drawn on base plate B2 overlap vertically. Column base position adjustment jig 1 is used to adjust the position of column base B to the correct position relative to column base foundation F1 in such cases.

[0023] In conventional designs, position adjustment jigs were attached to the foundation beam F2. Therefore, as shown in Figures 1 and 2, it was not possible to adjust the position of column base B in the direction where the foundation beam F2 was not present, among the four directions facing the side of the column base foundation F1. In contrast, the column base position adjustment jig 1 of this embodiment is positioned relative to the anchor bolt F11, allowing for adjustment of the horizontal position of column base B relative to the column base foundation F1 even when the foundation beam F2 is not present. Furthermore, the column base position adjustment jig 1 of this embodiment allows for flexible adjustment of the height at which the position adjustment is performed. Therefore, even if the height of the base plate B2 differs from that of the column base foundation F1, the horizontal position of column base B can still be adjusted relative to the column base foundation F1. Details of the column base position adjustment jig 1 will be described later.

[0024] <Column base position adjustment jig 1> Next, the column base position adjustment jig 1 will be described with reference to Figures 3 to 6. Figures 3, 4, 5, and 6 are perspective views of the column base position adjustment jig 1 from the front, the rear, the top, and the side, respectively. The column base position adjustment jig 1 mainly consists of an anchor bolt contact member 2, a position adjustment bolt 3, a fixing member 4, a connecting reinforcing member 5, and a retaining leg 6.

[0025] <<Anchor bolt contact member 2>> The anchor bolt contact member 2 is a steel plate that contacts the anchor bolt F11 and plays a role in positioning the column base position adjustment jig 1 relative to the anchor bolt F11. The anchor bolt contact member 2 has a base end portion 21 that connects to the position adjustment bolt 3 via a fixing member 4, which will be described later, a tip portion 23 located at the front end, and an extension portion 22 located between the base end portion 21 and the tip portion 23.

[0026] The base end 21 securely supports the position adjustment bolt 3 via the fixing member 4. The base end 21 and the fixing member 4 are fixed to each other by welding, but are not limited to this. The base end 21 and the fixing member 4 may be integrally formed and made of bent steel plate. Furthermore, the base end portion 21 has three through holes 26 that penetrate the base end portion 21 vertically and have screw grooves formed on their inner circumferential surfaces. Each of the through holes 26 is screwed into the body portion 61 of the retaining leg 6, which will be described later. The through holes 26 correspond to the screwed-in portions of the present invention.

[0027] The extension portion 22 is located between the base portion 21 and the tip portion 23 and extends in the displacement direction (front-rear direction) in which the position adjustment bolt 3, described later, is displaced. The extension portion 22 also has a notched contact portion 24 and a notched inclined portion 25 formed therein. The notched contact portion 24 and the notched inclined portion 25 are notches formed by cutting or machining a part (left side) of the extension portion 22.

[0028] The notched contact portion 24 is located on the tip portion 23 side of the extended portion 22 and has a curved shape that allows it to contact the side surface of the cylindrical anchor bolt F11. When the column base position adjustment jig 1 is attached to the column base foundation F1, the side surface of the anchor bolt F11 contacts the inner circumferential surface of the notched contact portion 24 on the tip portion 23 side (see Figure 8). As a result, the anchor bolt contact member 2 is positioned relative to the anchor bolt F11 in the extension direction (front-rear direction) of the extended portion 22.

[0029] Furthermore, the radius of the curved portion of the notched contact portion 24 is approximately equal to the radius of the anchor bolt F11. Therefore, when the column base position adjustment jig 1 is attached to the column base B, the column base position adjustment jig 1 is properly positioned relative to the anchor bolt F11, and the position of the column base position adjustment jig 1 is stabilized.

[0030] As shown in Figure 5, the notched inclined portion 25 is located on the base end 21 side of the extended portion 22 and extends inclined with respect to the extension direction so as to avoid the through hole 26. By forming the notched inclined portion 25, it is possible to reduce the weight of the column base position adjustment jig 1 while ensuring the strength required for the column base position adjustment jig 1.

[0031] The tip portion 23 is located at the front end of the anchor bolt contact member 2. As shown in Figure 5, the width W1 of the tip portion 23 is smaller than the width W2 of the base portion 21. Furthermore, the position adjustment bolt 3, which will be described later, is fixed to the anchor bolt contact member 2 at a position offset to the left from the center of the width direction of the anchor bolt contact member 2 (horizontal direction perpendicular to the front-rear direction in which the position adjustment bolt 3 is displaced). This makes it possible to miniaturize the anchor bolt contact member 2 and lighten the column base position adjustment jig 1 while ensuring the width W3 of the extension portion 22 to obtain the required strength for the extension portion 22.

[0032] <<Position adjustment bolt 3>> The position adjustment bolt 3 is fixed to the anchor bolt contact member 2 via a fixing member 4 so as to be displaceable. The position adjustment bolt 3 is a fastening member having a body portion 31 and a head portion 32 that pass through a through hole formed in the fixing member 4 and a nut 42, and screw into the nut 42. The position adjustment bolt 3 is displaced in the front-rear direction relative to the fixing member 4 by rotating the head portion 32. Furthermore, when the column base position adjustment jig 1 is attached to the column base B, the tip 31a of the body portion 31 of the position adjustment bolt 3 is positioned to face the side surface of the anchor bolt F11 (see Figures 7 and 8). Therefore, as will be described later, by rotating the head portion 32 after bringing the tip 31a of the body portion 31 into contact with the side surface B2b of the base plate B2, the position adjustment bolt 3 can press against the base plate B2, and the position of the column base B relative to the foundation F can be adjusted. The position adjustment bolt 3 corresponds to the position adjustment member of the present invention, the body portion 31 corresponds to the screw-in portion of the present invention, and the head portion 32 corresponds to the rotational operation portion of the present invention.

[0033] The head 32 is located on the opposite side of the nut 42 from the fixing plate 41. In other words, the head 32 protrudes from the through hole formed in the fixing plate 41 in a direction away from the column base B. Therefore, when rotating the head 32 using a tool such as a wrench, it is possible to prevent the tool from interfering with the base plate B2 or the connecting reinforcing member 5 described later, which would reduce the workability of the position adjustment work.

[0034] <<Fixing member 4>> The fixing member 4 is fixed to the anchor bolt contact member 2 and plays the role of fixing the position adjustment bolt 3 to the anchor bolt contact member 2. The fixing member 4 has a fixing plate 41 and a nut 42 provided on the fixing plate 41. The fixing plate 41 is welded to the anchor bolt contact member 2 so as to stand vertically from the base end 21 of the anchor bolt contact member 2. The fixing plate 41 has a through hole (not shown) that penetrates vertically through it, through which the body 31 of the position adjustment bolt 3 can be inserted.

[0035] The nut 42 is welded to the fixing plate 41 at a position corresponding to the through hole formed in the fixing plate 41. A threaded groove is formed on the inner circumferential surface of the nut 42, into which the body 31 of the position adjustment bolt 3 is screwed. The nut 42 may be a tall nut. The nut 42 corresponds to the screwed portion of the present invention.

[0036] <<Connecting reinforcing member 5>> The connecting reinforcing member 5 connects the anchor bolt contact member 2 and the fixing member 4, and connects the anchor bolt contact member 2 and the fixing member 4. As shown in Figure 5, the connecting reinforcing member 5 is provided on both the left and right sides of the nut 42 so as to sandwich the nut 42 in a top view. However, the number and arrangement of the connecting reinforcing members 5 are not limited to this. The connecting reinforcing member 5 only needs to be able to improve the connection strength between the anchor bolt contact member 2 and the fixing member 4, and may be interposed between the anchor bolt contact member 2 and the fixing member 4, or it may be a single connecting reinforcing member 5 that abuts against the anchor bolt contact member 2 and the fixing member 4.

[0037] <<Holding leg 6>> The retaining leg 6 supports the anchor bolt contact member 2 and the position adjustment bolt 3 in a way that allows the height to be changed. The retaining leg 6 has three fastening members. More specifically, the retaining leg 6 is a fastening member having a body portion 61 that screws into a through hole 26 formed in the anchor bolt contact member 2, and a rotatable head portion 62, and can move up and down relative to the base end portion 21 of the anchor bolt contact member 2. The retaining leg 6 corresponds to the support member and leg member of the present invention.

[0038] As shown in Figures 3 to 6, the retaining legs 6 are located below the fixing member 4, with two legs positioned on either side of the position adjustment bolt 3. Additionally, as shown in Figures 3 and 5, one retaining leg 6 is positioned to coincide with the tip 31a of the position adjustment bolt 3 in a top view. By arranging these three retaining legs 6, the legs can be positioned around the center of gravity of the column base position adjustment jig 1, enabling stable support of the column base position adjustment jig 1. However, the number and arrangement of the retaining legs 6 are not limited to those shown in Figures 3 to 6. The column base position adjustment jig 1 may be supported by four or more retaining legs 6. However, arranging the retaining legs 6 as shown in Figures 3 to 6 allows for stable support of the column base position adjustment jig 1 while suppressing an increase in the weight of the column base position adjustment jig 1.

[0039] <How to use the column base position adjustment jig 1> Next, we will explain how to use the column base position adjustment jig 1. Figures 7 and 8 show the column base position adjustment jig 1 attached to the column base foundation F1. As shown in Figure 7, the column base position adjustment jig 1 is attached to the gap formed between the column base foundation F1 and the base plate B2. At this time, the height of the anchor bolt contact member 2 and the position adjustment bolt 3 is adjusted by rotating the head 62 of the retaining leg 6. More specifically, the tip 31a of the position adjustment bolt 3 is adjusted to a height that allows it to contact the side surface B2b of the base plate B2. This makes it possible to adjust the position of the column base B on the column base foundation F1 even if the height of the base plate B2 differs depending on the construction site.

[0040] Furthermore, as shown in Figure 8, the notched contact portion 24 of the anchor bolt contact member 2 is positioned to contact the side surface of the anchor bolt F11, thereby positioning the column base position adjustment jig 1 relative to the anchor bolt F11 in the front-rear and left-right directions.

[0041] The worker can rotate the head 32 of the position adjustment bolt 3 to displace the bolt forward, causing its tip 31a to contact the side B2b of the base plate B2. If the worker rotates the head 32 further, the tip 31a of the position adjustment bolt 3 will press the base plate B2 forward. This adjusts the position of the column base B relative to the column base foundation F1.

[0042] Figure 9 shows the column base position adjustment jig 1 attached to the four anchor bolts F11. By attaching the column base position adjustment jig 1 as shown in Figure 9, it becomes possible to adjust the position of the column base B from a direction where the foundation beam F2 is not provided.

[0043] The column base position adjustment jig 1 according to one embodiment of the present invention has been described above. However, the above-described embodiment is merely an example to facilitate understanding of the present invention and does not limit the present invention. In the embodiments described above, the anchor bolt contact member 2 was described as having a notched contact portion 24 and a notched inclined portion 25, but it is not limited to this. The anchor bolt contact member 2 may also have a positional displacement suppression portion 27A that suppresses positional displacement of the column base position adjustment jig 1.

[0044] <Variation> A modified example of the column base position adjustment jig 1A will be described with reference to Figures 10 to 12. Figures 10, 11, and 12 are a perspective view, a top view, and a side view, respectively, of the modified column base position adjustment jig 1A, viewed from an oblique front angle. The column base position adjustment jig 1A mainly consists of an anchor bolt contact member 2A, a position adjustment bolt 3A, a fixing member 4A, a connecting reinforcing member 5, and a retaining leg 6. The connecting reinforcing member 5 and the retaining leg 6 have the same configuration as in the embodiment described above, so they are denoted by the same reference numerals and their detailed description is omitted.

[0045] <<Anchor bolt contact member 2A>> The anchor bolt contact member 2A is a steel plate that contacts the anchor bolt F11 and plays a role in positioning the column base position adjustment jig 1A relative to the anchor bolt F11. The anchor bolt contact member 2A has a base end portion 21 that connects to the position adjustment bolt 3A via a fixing member 4A, a tip portion 23 located at the front end, and an extension portion 22 interposed between the base end portion 21 and the tip portion 23.

[0046] The base end 21 securely supports the position adjustment bolt 3A via a fixing member 4A. The base end 21 also has four through holes 26A at its four corners, each with a threaded groove on its inner surface and extending vertically through the base end 21. Each of the through holes 26A is screwed into the body 61 of the retaining leg 6. Therefore, the anchor bolt contact member 2A and the position adjustment bolt 3A are stably supported by the retaining leg 6 that supports the base end 21A at its four corners.

[0047] The extended portion 22 has a notched contact portion 24A and a misalignment suppression portion 27A. Both the notched contact portion 24A and the misalignment suppression portion 27A are notches formed by cutting or machining a part (left side) of the extended portion 22.

[0048] The notched contact portion 24A is located on the tip portion 23 side of the extended portion 22 and has a curved shape that allows it to contact the side surface of the cylindrical anchor bolt F11. When the column base position adjustment jig 1A is attached to the column base foundation F1, the side surface of the anchor bolt F11 comes into contact with the tip portion 23 side of the notched contact portion 24A. As a result, the anchor bolt contact member 2A is positioned relative to the anchor bolt F11 in the extension direction (front-rear direction) of the extended portion 22.

[0049] Furthermore, the notch radius of the notched contact portion 24A is larger than the radius of the anchor bolt F11. Therefore, the column base position adjustment jig 1A can be easily attached to the column base foundation F1 from the left or right direction by fitting the notched contact portion 24A onto the anchor bolt F11.

[0050] The displacement suppression portion 27A is provided on the tip portion 23 side of the extension portion 22 and is adjacent to the notched contact portion 24A. The displacement suppression portion 27A protrudes rearward from the tip of the notched contact portion 24A. Therefore, the displacement suppression portion 27A can suppress the displacement of the column base position adjustment jig 1A in the left-right direction when the column base position adjustment jig 1A is attached to the column base foundation F1. The shape of the displacement suppression portion 27A is not limited to the shape shown in Figures 10 and 11. Any shape that can suppress the displacement of the column base position adjustment jig 1A relative to the anchor bolt F11 is acceptable, and a step may be formed that protrudes rearward (towards the base portion 21) from the tip of the notched contact portion 24A.

[0051] <<Position adjustment bolt 3A>> The position adjustment bolt 3A is fixed to the anchor bolt contact member 2A via a fixing member 4A so as to be displaceable. The position adjustment bolt 3A is a fastening member having a body portion 31 that passes through a through hole formed in the fixing member 4A and the high nut 42A and screws into the high nut 42A, and a head portion 32. The position adjustment bolt 3A is displaced in the front-rear direction relative to the fixing member 4A by rotating the head portion 32. Furthermore, when the column base position adjustment jig 1A is attached to the column base B, the head portion 32 of the position adjustment bolt 3A is positioned so as to face the side of the anchor bolt F11. Therefore, by rotating the head portion 32 after bringing it into contact with the base plate B2, the position adjustment bolt 3A can press against the base plate B2, and the position of the column base B relative to the foundation F can be adjusted.

[0052] The head portion 32 protrudes forward from the through-hole formed in the fixing member 4A, in a direction closer to the column base B. Therefore, the overall dimensions of the column base position adjustment jig 1A can be made more compact compared to the embodiment described above.

[0053] According to the column base position adjustment jig 1A of the above modified form, the position of the column base B can be adjusted relative to the column base foundation F1 even when the foundation beam F2 is not provided, similar to the embodiment described above. In addition, the height of the anchor bolt contact member 2A and the position adjustment bolt 3A can be adjusted by the holding leg 6, making it possible to flexibly adjust the height at which the position adjustment is performed.

[0054] In the embodiments described above, the fixing member 4 was described as having a fixing plate 41 and a nut 42, but it is not limited to this. It is sufficient that it can be screwed into the position adjustment bolt 3 to fix the position adjustment bolt 3 in a displaceable manner, and screw grooves may be formed on the inner circumferential surface of the through hole in the fixing plate 41.

[0055] Furthermore, in the embodiments described above, the fixing member 4 is described as being constructed separately from the anchor bolt contact member 2, but the invention is not limited to this. The fixing member 4 may be constructed integrally with the anchor bolt contact member 2. Furthermore, although the above-described embodiment explained that the connecting reinforcing member 5 is constructed separately from the fixing member 4 and the anchor bolt contact member 2, the invention is not limited to this. The connecting reinforcing member 5 may be constructed integrally with at least one of the fixing member 4 and the anchor bolt contact member 2.

[0056] Furthermore, although the retaining leg 6 was described as a fastening member in the embodiments described above, it is not limited to this. It is sufficient that it can support the anchor bolt contact member 2 and the position adjustment bolt 3 in a height-adjustable manner, and it may have a pantograph structure or be a leg member equipped with a known height adjustment mechanism.

[0057] Furthermore, although the column base position adjustment jig 1 was described as being made of steel in the embodiments described above, it is not limited to this. It is sufficient that it has the strength necessary to adjust the position of the heavy column base B relative to the column base foundation F1, and the column base position adjustment jig 1 may be made of a metal other than steel. [Explanation of symbols]

[0058] 1. 1A Column base position adjustment jig 2, 2A Anchor bolt contact member 21, 21A proximal end 22 Stretching section 23 Tip 24, 24A Notch contact part 25 Notch slope 26, 26A through hole (threaded part) 27A Positional displacement suppression unit 3. 3A Position adjustment bolt (position adjustment member) 31 Body (screw-in section) 31a Tip 32 Head 4, 4A Fixing member 41 Fixed plate 42 nuts 42A High Nut 5. Connecting reinforcement member (connecting reinforcement section) 6. Retaining legs (support members) 61 Body (screw-in section) 62 Head B Column base B1 pillar B2 Base Plate B2a Assembly hole B2b side view B3 Scribble lines F Foundation F1 column base foundation F11 Anchor Bolt F12 Column support F13 Fastening Nut F2 foundation beam F3 Ground Mark

Claims

1. A column base position adjustment jig used to adjust the horizontal position of a column base relative to a column base foundation, An anchor bolt contact member that abuts against an anchor bolt fixed to the column base foundation and is positioned relative to the anchor bolt, A position adjustment member is fixed to the anchor bolt contact member so as to be displaceable, and contacts the column base to adjust the position of the column base, A column base position adjustment jig characterized by comprising a support member that supports the anchor bolt contact member and the position adjustment member in a height that can be changed.

2. The support member has three or more leg members, The column base position adjustment jig according to claim 1, characterized in that the leg member has a threaded portion that screws into a threaded portion formed on the anchor bolt contact member, and a rotating operating portion that rotates the threaded portion.

3. A fixing member for fixing the position adjustment member to the anchor bolt contact member, The column base position adjustment jig according to claim 1, characterized in that a connecting reinforcing member is provided that connects to the fixing member and the anchor bolt contact member, and connects the fixing member and the anchor bolt contact member.

4. The position adjustment member has a fixing member that fixes it to the anchor bolt contact member, The position adjustment member has a threaded portion that penetrates the fixing member, a threaded portion that engages with the fixing member, and a rotational operating portion that rotates the threaded portion. The column base position adjustment jig according to claim 1, characterized in that the rotation operating part protrudes in a direction away from the column base from the screwed portion of the fixing member.

5. The anchor bolt contact member has an extended portion that extends in the direction of displacement in which the position adjustment member is displaced. The extended portion has an anchor bolt contact portion that contacts the anchor bolt, The column base position adjustment jig according to claim 1, characterized in that the position adjustment member is attached to the anchor bolt contact member at a position offset from the center in the horizontal direction perpendicular to the displacement direction, in a direction away from the extension portion.

6. The column base position adjustment jig according to claim 1, characterized in that the anchor bolt contact member has a positional displacement suppression portion that suppresses relative positional displacement of the anchor bolt contact member with respect to the anchor bolt.

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