JP2008144425A - Positioning tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning tool which can minutely adjust the location and inclination of a recess forming material embedded in a foundation, for forming an anchor implanting hole, after being temporarily set in a form, and is applicable to various foundations different in dimension. <P>SOLUTION: An anchor ruler A which is mounted on a foundation form F when the foundation B for supporting a base isolation device S of a single ball rolling bearing type is constructed, is formed of an octagonal plate 10 and form mounting portions 20 for hanging the plate 10 in the foundation form F in a height adjustable manner. The plate 10 can be inscribed on each of the two column forms different in dimension by rotating through 45 degrees, and the plate 10 is formed with mounting holes 13a, 13b for mounting a widing pipe P thereon as the recess forming material corresponding to the location of an anchor bolt Va of each of the two column forms different in dimension. Then, a hook fitting of the form mounting portion 20 has its upper end hooked on an upper bed of the foundation form F, and its lower end connected to the plate 10 by means of height adjusting bolts 24. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a positioning jig for holding various members embedded in a foundation of a building structure at a predetermined position in a formwork.

  Conventionally, in order to form a recess (anchor hole) for anchor bolt planting in a foundation of a building, a box-shaped material such as a pipe has been embedded in the upper end surface of the foundation. Since such a box-cutting material must be accurately arranged according to the design position of the anchor bolt, it has been positioned and embedded using a positioning jig or the like. For the positioning jig, use a plywood, etc., as appropriate at each construction site, or make several types of metal jigs according to the basic shape and the anchor bolt arrangement pattern in advance. In particular, it has been selected from among them and used (for example, see Patent Document 1).

  The sheath tube holding jig of Patent Document 1 holds a sheath tube that is used as a boxing material for anchor bolt installation, and the sheath tube is attached to and detached from a predetermined position on the lower surface of the plate-like base member via an attachment member. It is made possible. In Patent Document 1, a plurality of types of base members are prepared corresponding to the planar shape of the basic formwork, and a plurality of types of attachments are made according to the attachment position (distance from the base top end) of the sheath tube. Members are prepared. Therefore, by combining these, it is possible to cope with the basis of various patterns.

JP 2002-180474 A

However, the sheath tube holding jig of Patent Document 1 is configured such that a plate-like base member is placed on the upper end surface of the basic formwork and is fixed with bolts or clamps. There was no means for fine-tuning. In addition, the attachment member interposed between the base member and the sheath tube is not provided with any means for adjusting the height and inclination. Therefore, it is difficult to finely adjust the height and inclination of the sheath tube after fixing the base member together with the base formwork, and it is difficult to attach the sheath tube to an accurate position.
Further, the sheath tube holding jig of Patent Document 1 is not formed so that the same member can be applied when the foundation width and the anchor bolt position are different.

  In addition, when installing seismic isolation devices such as rolling bearings using rolling elements such as steel balls on the foundation of buildings or structures, anchor bolts must be positioned accurately to ensure horizontal accuracy of the seismic isolation device. It was requested to construct with high accuracy. That is, the accuracy of anchor bolt installation is poor due to the low accuracy of the boxing material burying position. As a result, if the seismic isolation device is tilted and installed, the rolling element (steel ball) after the seismic isolation device is activated. May not be able to return to its original position. Therefore, there has been a demand for means for accurately constructing anchor bolts in buildings and structures equipped with such a seismic isolation device.

The present invention has been made in view of the above problems, and its purpose is to enable fine adjustment of the position and inclination of the boxing material embedded in the foundation. An object of the present invention is to provide a positioning jig that can be held in a basic formwork with an accurate position and inclination (posture) that match the position.
Another object of the present invention is to provide a positioning jig applicable to a plurality of types of foundations having different foundation widths and anchor bolt design positions.

According to the positioning jig of the present invention, the object is a positioning jig attached to a foundation mold for forming a foundation of a building, wherein the foundation is attached with an embedded member embedded in the foundation. A flat plate formed so as to be disposed at a predetermined position in the mold and a latching portion that can be latched on the upper end of the basic mold are provided at the upper end, and the height of the plate can be freely adjusted. This can be solved by including a formwork attaching portion provided at the lower end portion with an attachable attaching portion.
In this way, the plate for holding the embedded member is attached to the base formwork via the formwork attachment part having the hook part hooked on the upper end of the base formwork and the height-adjustable attachment part. After the plate is temporarily fixed to the basic formwork, the height position of the plate can be finely adjusted by adjusting the mounting portion. Therefore, the embedded member can be easily held at an accurate height position in the basic formwork, and the accuracy of the embedded position can be improved. As a result, it is possible to easily ensure the accuracy of the cover thickness of the foundation concrete with respect to the embedded member. Moreover, if the plate is suspended by a plurality of formwork attachment portions, the inclination of the plate can be adjusted by adjusting the height independently. Therefore, the position accuracy in the height direction can be improved.

  In the present invention, more specifically, the hooking portion is formed of a bent plate material, and has a substantially U-shaped hook piece that can be externally fitted to the upper end of the basic formwork, and the lower end of the hook piece. A vertical piece extending downward along the inner surface of the basic mold, and a horizontal piece extending substantially horizontally from the lower end of the vertical piece toward the inside of the basic mold The mounting portion has a bolt member having an upper end inserted into a predetermined position of the horizontal piece and a lower end inserted into a predetermined position of the plate, and a nut member screwed into one end of the bolt member. In addition, since the retaining member is provided at the other end of the bolt member, the plate can be suspended below the horizontal piece so as to be adjustable in height.

  Thus, if the hook piece having a substantially U-shaped cross section is provided at the upper end, the hooking portion can be easily hooked on the upper part of the basic formwork. Also, the plate can be suspended below the horizontal piece by the bolt member by placing the bottom horizontal piece and the plate vertically and penetrating the bolt member and providing the nut member or the retaining portion at the end. . Moreover, the height position of the plate can be adjusted by adjusting the screwing position of the nut member. Therefore, the box-cutting material can be easily held at an accurate height position in the basic formwork. Therefore, the accuracy of the burying position of the boxing material can be improved.

  In the present invention, it is preferable that a long hole is formed in the horizontal piece or the plate, and the bolt member is inserted into the long hole so that the horizontal position of the plate can be adjusted. is there. Since the hole through which the bolt member is inserted is a long hole, the bolt member can be moved along the long hole, so that the horizontal position of the plate can be adjusted.

According to the present invention, the plate has a shape of an overlapped portion in which one of two substantially squares having different sizes is rotated by a predetermined angle with respect to the other, and the plate has the two substantially square shapes. A side that overlaps one of the sides is aligned with the first mounting state that is substantially inscribed in the form surface of the basic formwork, and the bolt member is provided on the side inscribed in the formwork surface. It can be set as the structure by which the attachment hole for inserting the said frame attachment part by inserting through is formed.
In this way, the plate formed in the shape of the overlapping portion when two substantially squares having different sizes are rotated by a predetermined angle and overlapped can be inscribed in the two substantially squares having different sizes. Therefore, it can be applied to two columnar molds having different sizes with one member, and the versatility of the member is improved.

In the present invention, the first fixing that can be attached to the plate so that the embedded member is disposed at the anchor member position in the first foundation shape formed by the foundation mold in the first attachment state. And forming a second foundation shape different from the first foundation shape by rotating the plate by a predetermined angle with respect to the first attachment state. In the second mounting state arranged so as to be substantially inscribed in, a configuration is provided in which a second fixing portion that can be attached so that the embedded member is arranged at the anchor member position in the second foundation shape is formed. it can.
Thus, in the present invention, when the plate is attached to the foundation formwork, different attachment states (first attachment state, second attachment state) depending on the foundation shape (first foundation shape, second foundation shape) and Determine the posture of the plate so that Since the anchor member position is set at a different position depending on the foundation shape, the plate is fixed to the anchor member position in the two types of attachment states as a fixing portion for attaching the embedded member. These two types of fixing portions are formed. If it does in this way, even if a basic shape and anchor member arrangement | positioning differ, an embedded member can be hold | maintained with the same plate and the versatility of a member will be improved.

  In the present invention, more specifically, the burying member is made of a box opening material for forming a recess in which the anchor bolt is implanted in the foundation. In this way, it is possible to improve the accuracy of the burying position of the box cutting material for forming the recess in which the anchor bolt is implanted. Therefore, it becomes easy to install the anchor bolt with high accuracy. Moreover, the concrete cover thickness with respect to the anchor bolt can be secured, and the durability of the building can be improved. In addition, since the foundation and other structural members can be joined with high accuracy via the anchor bolts, the structural strength of the building can be improved.

  In the present invention, more specifically, a seismic isolation device is supported on the upper end surface of the foundation in which the boxing material is embedded, and the seismic isolation device is joined and fixed to the anchor bolt. Thus, this invention can ensure the horizontal accuracy of a base isolation apparatus by improving the anchor precision of the foundation which supports a base isolation apparatus.

The present invention has the following effects.
In the positioning jig of the present invention, a plate for attaching an embedded member such as a boxing material and holding it in a predetermined position is supported by a mold attachment portion so that the height can be adjusted. Therefore, the height position of the plate can be finely adjusted after the formwork attaching part is attached to the basic formwork. Further, by supporting the plate so that the height can be adjusted at a plurality of locations, the inclination of the plate can be finely adjusted. Therefore, it is possible to easily hold an embedded member such as a boxing material at an accurate position in the basic formwork with an accurate posture, and to improve the accuracy of the embedded position.
The positioning jig of the present invention can be inscribed in two types of columnar molds having different sizes. In addition, two different types of fixing portions are formed corresponding to the respective anchor member positions in the two types of column shapes as the fixing portions for attaching the boxing material. If it does in this way, the same plate can be used for construction of two kinds of foundations from which external dimensions and anchor member arrangement differ, and the versatility of parts is improved.
(Circle) the positioning jig of this invention is used in order to arrange | position the boxing material for anchor bolt installation of the foundation which supports a seismic isolation apparatus. Therefore, the precision of the anchor bolt of the foundation which supports a seismic isolation apparatus can be improved, and the horizontal precision of a seismic isolation apparatus can be ensured.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.
1 to 12 show an embodiment of a positioning jig of the present invention. FIG. 1 is a perspective view of an anchor ruler attached to a basic formwork, and FIGS. 2 and 3 are attached to the basic formwork. FIG. 4 is an explanatory view of the shape of the plate, FIGS. 5 and 6 are plan views of the plate, FIG. 7 is a perspective view of the formwork mounting portion, and FIG. 8 is hooked on the base formwork. FIG. 9 is an explanatory diagram of the foundation constructed using the anchor ruler, and FIG. 10 is an illustrative sectional view of the foundation constructed using the anchor ruler. FIG. 11 is an explanatory diagram of a building portion where the seismic isolation device is installed, and FIG. 12 is an explanatory diagram of the seismic isolation device supported by the foundation.

An embodiment in which the positioning jig of the present invention is applied to an anchor ruler A used to form a foundation B that supports a seismic isolation device S installed in a building such as a house or various structures will be described.
(Configuration of anchor ruler)
The anchor ruler A of this example is used by being attached to the base formwork F (see FIG. 1) when constructing the foundation B (see FIGS. 9 to 11) of the columnar part of the fabric foundation of the building. The recess B1 (see FIG. 10), which serves as a planting hole for planting the anchor bolt Va connecting S (see FIGS. 11 and 12) and the foundation B on the upper surface of the foundation B, has an accuracy on the upper surface of the foundation B. Used to form well. The recess B1 is formed by embedding a hollow box-cutting material in the foundation B, and in this example, a wiping pipe P is used as the box-cutting material.

  The wiping pipe P is made of a cup-shaped member having a bottom formed by closing a lower end of a hollow tube material having a predetermined length, such as a metal or a resin, and having an upper end opened. With such a shape, when the wiping pipe P is embedded in the upper surface of the foundation B, a cup-shaped recess B1 is formed on the upper surface of the foundation B. The anchor ruler A of this example can attach the wiping pipe P in accordance with the design position of the anchor bolt, and can be attached to the foundation mold F so that the position can be adjusted and the inclination can be adjusted. Therefore, the wiping pipe P can be held in an accurate position and posture, and can be embedded in an accurate position of the foundation B with an accurate posture.

The anchor ruler A of the present example includes a substantially flat plate 10 on which a wiping pipe P can be attached at a predetermined position, and a formwork attaching portion in which the plate 10 can be suspended in a basic formwork F so as to be adjustable in height. 20 are main components.
The plate 10 is made of metal (for example, steel) so that its planar shape is substantially octagonal, and as shown in FIGS. 1 to 3, a columnar portion provided at a corner of a fabric foundation of a building It is formed in a size so as to be inscribed in an inner slope (formwork surface) of the foundation formwork F assembled to construct the foundation B. FIG. 1 is a perspective view of the anchor ruler A, but the illustration of the inner peripheral base formwork F is omitted, and only the outer peripheral base formwork F is shown. Further, in FIG. 1, some illustrations of various mounting holes (described later) formed in the plate 10 are omitted.

When the plate 10 is made of metal instead of plywood as in the prior art, deformation such as warpage is less likely to occur, and the number of times of repeated use can be increased as compared to plywood. That is, by making the plate 10 made of metal, it is possible to provide a jig that has high durability and is less likely to cause dimensional errors due to deformation.
Further, the plate 10 may be formed to be slightly smaller than the internal dimension of the basic mold F of the column mold portion in consideration of dimensional errors of members and assembly errors of the basic mold F. That is, as shown in FIG. 2 and FIG. 3, when the outer dimensions of the plate 10 are attached to the basic formwork F of the columnar part, it is between the inner slope (formwork surface) of the basic formwork F. The dimension may be such that a predetermined gap is formed.

The plate 10 has a planar shape in which four corners of a substantially square are obliquely cut at substantially the same angle (45 degrees in this example) and dimensions. Accordingly, the four sides of the plate 10 are located on the four sides of the original square. Further, the four sides formed by the cutting are located on four sides of a square having a size different from that of the original square. That is, as for the eight sides of the outer periphery of the plate 10, two sets of four sides located in the circumferential direction and the other four sides are located on each side of a different square.
Therefore, as shown in FIG. 2, when the plate 10 is aligned with the corner (columnar portion) of the basic formwork F, four sides (10a, 10c, 10e, 10g) located every other circumferential direction are formed. , They are aligned so as to be inscribed in the form surface of the columnar part formed in a substantially square cross section. The columnar part has a substantially square cross section, and the intervals between 10a and 10e, 10c and 10g are the same (dimension L1).

Further, as shown in FIG. 3, the plate 10 is rotated by 45 degrees from the above state, so that the four sides (10b, 10d, 10f, 10h) different from the above four sides are referred to as the above column type. It can be inscribed in column types with different dimensions. That is, the plate 10 is formed so as to be inscribed in a plurality of columnar shapes having different dimensions by changing the installation angle (rotating substantially 45 degrees horizontally). The plate 10 is not a regular octagon, and the distance between 10b and 10f, 10d and 10h is a dimension L2 different from L1.
The mounting state of the plate 10 shown in FIG. 2 corresponds to the first mounting state of the present invention, and the mounting state of the plate 10 shown in FIG. 3 corresponds to the second mounting state of the present invention.

In this example, two types of a 600 mm square and a 530 mm square are assumed as the dimensions of the foundation B of the columnar part to be constructed using the anchor ruler A. However, one plate 10 is installed by rotating it 45 times. Thus, it can be applied to both of these two basic dimensions. Moreover, the plate 10 of this invention can be used for the construction of the foundation of other dimensions other than a 600 mm square and a 530 mm square by setting the external dimension (the said dimension L1, L2) suitably.
In this example, the four corners of the plate 10 are cut obliquely at an angle of 45 degrees, but this angle is not limited to 45 degrees. In short, as shown in FIG. 4, two squares having different dimensions (two types of squares having one side dimension of L1 and L2) are arranged with the center being shifted by an arbitrary angle, and in this state If the overlapping portions of the two squares have the shape of the plate 10, they can be inscribed in two columnar shapes having different dimensions. In addition, if three or more squares are overlapped with an angle shifted from each other instead of two, and all of the overlapping portions have the shape of the plate 10, they can be inscribed in three or more columnar shapes having different dimensions. It is.

A substantially circular opening 11 is formed at the center of the plate 10, and when the foundation concrete is placed, the filling state of the concrete filled in the column mold can be visually confirmed from the opening 11. . Further, a hose for pouring concrete into the basic formwork F can be inserted into the opening 11.
The plate 10 is formed with holes for attaching various objects. In this example, a mounting hole 12 for mounting the level adjusting bolt Vb and the level adjusting nut Vc, mounting holes 13a and 13b for mounting the wiping pipe P, and the plate 10 are mounted to the plate mounting portion 20 in the plate 10. A predetermined number of mounting holes 14a and 14b and the like are formed at predetermined positions. FIG. 5 is a plan view of the plate 10 in which all of these mounting holes are shown. FIGS. 5 (a) and 5 (b) are similar to FIGS. The state applied to the construction of the column-shaped foundation of the dimensions is shown.

  As shown in FIGS. 2, 3, and 5, three attachment holes 12 are formed on the outer peripheral side of the opening 11 at substantially equal intervals in the circumferential direction. In order to attach the level adjustment bolt Vb and the level adjustment nut Vc (see FIG. 10) to the attachment hole 12, the level adjustment nut Vc is brought into contact with the position of the attachment hole 12 from the lower surface side of the plate 10, and then the plate 10 The level adjustment bolt Vb is inserted and screwed from the upper surface side. The number of mounting holes 12 may be three or more. In this example, the level adjustment nut Vc is attached and held on the lower surface side of the plate 10 so that the upper end slightly protrudes from the upper surface of the foundation B as shown in FIG. It will be in the state. The level adjustment nut Vc is a long nut having a predetermined length, and the height of the upper end of the level adjustment bolt Vb can be adjusted by screwing the level adjustment bolt Vb into the long nut.

  The attachment holes 13 a and 13 b are formed on the outer peripheral side with respect to the attachment hole 12. The mounting hole 13a is used for mounting the wiping pipe P when constructing the smaller column type of the two types, that is, a 530 mm square column type foundation. Further, the mounting hole 13b is used for mounting the wiping pipe P when constructing a larger column type, in this example, a 600 mm square column type foundation. 2, 3, and 5, the planar shape of the wiping pipe P attached to the lower surface side of the plate 10 is indicated by a dotted line.

The attachment position of the wiping pipe P to the plate 10 is determined based on the design position of the anchor bolt Va (see FIGS. 9 and 10) inside the column mold. The plate 10 is arranged so as to be inscribed in the basic formwork F of the column-shaped portion, and in this state, the attachment of the wiping pipe P so that the center of the anchor bolt Va and the center of the wiping pipe P are substantially at the same position. The position is determined. And since the plate 10 of this example can be applied to the construction of a columnar foundation having two types of dimensions, the position of the mounting hole 13a is determined in accordance with the position of the anchor bolt Va on the columnar foundation of 530 mm square. The position of the mounting hole 13b is determined in accordance with the position of the anchor bolt Va on the 600 mm square columnar foundation.
That is, a 530 mm square column shape corresponds to the first basic shape of the present invention, and a 600 mm square column shape corresponds to the second basic shape of the present invention. The mounting hole 13a corresponds to the first fixing portion of the present invention, and the mounting hole 13b corresponds to the second fixing portion of the present invention.

On the edge of the upper end of the wiping pipe P, tongue-shaped extending pieces Pa are formed extending from the two positions rotated 180 degrees toward the outer peripheral side. A mounting hole is formed in each extension piece Pa. In this example, since four anchor bolts Va are implanted on each of the 530 mm square and 600 mm square columnar foundations, four wiping pipes P are attached to the plate 10. Therefore, eight mounting holes 13a and 13b are formed corresponding to the mounting holes of each extending piece Pa, respectively.
In order to attach the wiping pipe P to the plate 10, the extension piece Pa is brought into contact with the plate 10 from the lower surface side of the plate 10, and the attachment holes formed in the extension pieces Pa are respectively located in the attachment holes 13 a or 13 b. Together, insert a fastening member such as a bolt and fix it.

The mounting hole 14a is formed on two sides (10a, 10c) of the plate 10, and the mounting hole 14b is formed on another two sides (10b, 10d). As shown in FIGS. 1 to 3, the formwork mounting portion 20 for suspending the plate 10 from the upper end of the base formwork F is a formwork of the base formwork F located on the outer peripheral side of the corner portion of the fabric foundation. It is hooked on two sides. Therefore, the plate 10 is provided with mounting holes 14a and 14b for mounting the mold mounting portion 20 on two sides that are inscribed in the surface of the mold 2 positioned on the outer peripheral side. That is, mounting holes 14a are formed on two sides (10a and 10c) for a 530 mm square column shape, and mounting holes 14b are formed on two sides (10b and 10d) for a 600 mm square column shape. Yes.
The mounting holes 14a and 14b are formed at two locations on the four sides of the plate 10 at positions where the reserved dimensions from the end portions are predetermined dimensions (dimension L3 shown in FIG. 5).

  Note that the mounting holes 14a and 14b may be formed not only on the four sides of the plate 10 but on all sides as shown in FIG. As described above, the plate 10 can be arranged so that four sides are inscribed in the formwork surface, but in this example, two sides (10e and 10g or 10f and 10h) located on the inner peripheral side of the four sides. ) Is located at the connection part with the fabric foundation, so even if the formwork attaching part 20 is attached to these sides, it cannot be hooked on the base formwork F, and the formwork attaching parts on all four sides 20 can not support. However, if the attachment holes 14a and 14b are formed on all sides, the anchor ruler A can be attached to any side and used. For example, when using it for construction of an independent foundation, the formwork attaching part 20 can be attached and used on three or more sides.

  When the mounting holes 14a and 14b are formed on all sides, a height member or the like may be adjusted by screwing a suspension member such as a bolt member from above into a mounting hole that is not used. If it does in this way, height adjustment and inclination adjustment of plate 10 can be performed auxiliary using attachment holes 14a and 14b which are not attaching formwork attaching part 20. For example, a temporary material such as an angle material is installed between the top ends of the basic formwork F. Then, the upper end of the suspension member is connected to and supported by the temporary material, and the lower end is screwed into the mounting holes 14a and 14b that are not used, thereby finely adjusting the screwing dimension. Thereby, the height adjustment of the plate 10 can be performed.

The formwork mounting portion 20 is formed to include a hooking portion 20A that can be hooked to the upper end of the basic formwork F, and a mounting portion 20B that can attach the plate 10 to the hooking portion 20A so that the height can be adjusted. ing.
As shown in FIG. 7, the latching portion 20 </ b> A is made of a metal piece formed by bending a metal plate material, and has a substantially U-shaped hook piece that can be externally fitted to the upper end of the basic formwork F at its upper end portion. 21 is provided. The formwork mounting portion 20 includes the hook piece 21, a vertical piece 22 extending downward from the lower end of the hook piece 21 in a direction along the formwork surface of the basic formwork F, and a vertical piece from the lower end of the vertical piece 22. 22 is formed to have a horizontal piece 23 that extends substantially vertically to the inner side of the mold frame, that is, substantially horizontally. The tip of the horizontal piece 23 is a free end.

The horizontal piece 23 is formed with two bolt holes 23a for suspending the plate 10 so that the height can be adjusted. The distance between the centers of the two bolt holes 23a is set to be the same as the distance between the centers of the two mounting holes 14a or 14b formed on the predetermined side of the plate 10 described above. Therefore, the two bolt holes 23a and the two mounting holes 14a or 14b can be aligned so as to overlap each other.
In addition to the bolt holes 23 a, a plurality of holes are formed in the horizontal piece 23, and these holes can also be used for adjusting the horizontal position of the plate 10. Two other bolt holes 23b are formed on the front end side of the bolt hole 23a, and long holes 23c and 23d are formed on both sides thereof.

The mounting portion 20B includes a height adjustment bolt 24 inserted through the bolt hole 23a and a nut 25 screwed into the bolt. The height adjusting bolt 24 in this example is a double-cut bolt, but it may be a bolt having a head formed at one end in the same manner as a normal bolt.
In order to attach the plate 10 to the formwork attaching portion 20, first, the plate 10 is arranged below the horizontal piece 23 and aligned so that the two bolt holes 23a and the attaching holes 14a or 14b overlap vertically. The height adjustment bolt 24 is inserted and the nut 25 is screwed to both ends thereof. As a result, one side of the plate 10 is suspended below the horizontal piece 23, and its height can be adjusted by the screwing position of the nut 25.
Note that one of the two nuts 25 screwed to both ends of the height adjusting bolt 24 may be fixed to the plate 10 or the horizontal piece 23 in advance by welding or the like. For example, if the nut 25 is welded to the mounting holes 14a and 14b of the plate 10 in advance, the plate 10 can be mounted and the height can be adjusted simply by screwing the height adjusting bolt 24 from above.

(Foundation method using anchor ruler and seismic isolation device installation method)
Next, a construction method of the foundation B using the anchor ruler A configured as described above and a method of installing the seismic isolation device S on the foundation B will be described.
(1) First, when constructing a 530 mm square column-shaped foundation, four wiping pipes P are attached to the eight attachment holes 13a (13b in the case of a 600 mm square) of the plate 10, and two sides 10a are attached. And 10c (10b and 10d in the case of 600 mm square) are attached to the formwork attaching portion 20. At this time, the screwing position of the nut 25 is provisionally determined so that the plate 10 is positioned below the horizontal piece 23 by a predetermined dimension. For example, the dimension H1 (see FIG. 8) from the inner peripheral surface of the hook piece 21 (the surface contacting the upper end surface of the basic formwork F) to the upper end surface of the wiping pipe P attached to the plate 10 is as designed. Provisionally decide to be the value of.

(2) Next, the plate 10 is inserted into the basic formwork F from above and aligned so that the four sides (10a, 10c, 10e, 10g) are inscribed in the formwork surface (in the case of 600 mm square) Rotate 45 degrees to inscribe 10b, 10d, 10f, and 10h). At the same time, the hook piece 21 of the formwork attaching portion 20 attached to the end portions of the two sides of the plate 10 is substantially perpendicular to the upper end of the base formwork F and located on the outer peripheral side of the corner portion of the fabric foundation. It is fitted on the surface of the mold 2 and hooked. As a result, the plate 10 is supported substantially horizontally in the foundation mold F, and the wiping pipe P attached to the plate 10 is approximately aligned with the anchor bolt Va installation position in the foundation mold F. To be held.

(3) Next, by adjusting the screwing position of the nut 25, the height of the plate 10 at each position where the height adjusting bolt 24 is inserted is finely adjusted. And the height position of the plate 10 is matched with the exact height position leveled using a surveying instrument etc. in the construction site. For example, as shown in FIG. 8, when the deviation between the height position provisionally determined in (1) and the leveled height position is the dimension H2, the screwing position of the nut 25 is adjusted. The plate 10 is raised by the dimension H2 and adjusted to an accurate level. At the same time, a level is placed on the plate 10 to check the tilt, and if it is tilted, the screwing positions of the nuts 25 in the plurality of height adjusting bolts 24 are adjusted so that the plate 10 is tilted. Tweak the. When the positional accuracy in the height direction of the wiping pipe P attached to the plate 10 reaches a predetermined value such as within 1/300 (within 1 mm), the fine adjustment in the height direction is completed.
Note that fine adjustment in the horizontal direction may be performed in the same manner as in the height direction. For example, the height adjustment bolt 24 is inserted into the long holes 23c and 23d of the horizontal piece 23, and the height adjustment bolt 24 is slid along the long hole to perform fine adjustment in the horizontal direction. Thereby, the position accuracy of the horizontal direction of the wiping pipe P is securable.

(4) When the fine adjustment is completed, while holding the plate 10, the wiping pipe P attached to the plate 10, the level adjustment bolt Vb and the level adjustment nut Vc in this state, the fluidized concrete is put into the mold. It flows in and compacts, and fills up to a predetermined height in the basic formwork F. The filling height is set to a position just below the lower surface of the plate 10. Therefore, almost the entire wiping pipe P and level adjusting nut Vc are buried.
(5) After the concrete is hardened, the plate 10 and the formwork attaching part 20 are removed. The wiping pipe P and the level adjusting nut Vc are removed from the plate 10, and these are left embedded in the foundation concrete as shown in FIG. 10 (a). In this example, since the wiping pipe P and the level adjustment nut Vc are embedded at an accurate position by adjusting the position of the plate 10, the cover thickness of the foundation concrete with respect to the wiping pipe P is ensured.

(6) Subsequently, as shown in FIG. 10B, the anchor bolt Va is installed at the center of the recess B <b> 1 that is the internal space of the wiping pipe P (a position that substantially matches the design position of the anchor bolt Va). A long nut is screwed to the anchor bolt Va. A fixing plate S1 for fixing the seismic isolation device S to the foundation B is attached to the upper end of the anchor bolt Va. That is, this anchor bolt Va becomes the anchor bolt Va for seismic isolation device fixation. In this example, since the wiping pipe P is embedded at an accurate position, the anchor bolt Va can be easily planted at an accurate position by placing the anchor bolt Va at the center of the wiping pipe P. Accordingly, by attaching the fixing plate S1 to the anchor bolt Va, the fixing plate S1 can be easily attached at a substantially accurate position.

Then, the horizontal position and the height position accuracy are ensured by finely adjusting the height position and inclination of the fixed plate S1. Since the seismic isolation device S is mounted and fixed on the upper surface of the fixed plate S1, this fine adjustment is a fine adjustment necessary for operating the seismic isolation device S normally. In this example, the level adjustment bolt Vb is adjusted to finely adjust the height position and inclination of the fixed plate S1. At this time, for example, one of the level adjustment bolts Vb is used as a reference height by a surveying instrument such as an auto level. After setting, the level can be placed on the fixed plate S1 and the remaining two can be adjusted.
Further, the horizontal position of the fixed plate S1 can be adjusted by a method such as adjusting to a reference position with a surveying instrument such as a transit or aligning with reference to a water string.

(7) Next, as shown in FIG. 10 (c), the non-shrink mortar C is filled between the fixed plate S1 and the foundation concrete, and the fixed plate S1 is supported by the base B that can support the seismic isolation device S. Install horizontally and accurately on the top surface. In addition, the hole for confirmation of the filling condition of the non-shrink mortar C is appropriately formed in the fixed plate S1, and filling is performed while checking the filling condition from the hole.
(8) After the filled non-shrink mortar C is cured, the seismic isolation device S is fixed on the fixed plate S1. At this time, the seismic isolation device S is joined and fixed to the upper end of the anchor bolt Va. Moreover, the upper part of the seismic isolation device S is joined and fixed to the steel pedestal portion of the building (the lower end portion of the structural material). When the building is completed, as shown in FIG. 11, the seismic isolation device S is installed between the steel pedestal portion of the building and the foundation B.

(Structure of seismic isolation device)
Next, the seismic isolation device S supported by the foundation B constructed using the anchor ruler A of this example will be described.
As described above, the seismic isolation device S is provided between the foundation B of the building and the steel pedestal portion of the building (the lower end of the structural material), and includes a single-ball type rolling bearing that absorbs seismic energy. Yes. As shown in FIG. 12, this single ball type rolling support part sandwiches the sphere Sa between a steel sphere Sa as a rolling element, a steel lower plate Sb that supports the sphere Sa, and the lower plate Sb. In the event of an earthquake, the lower plate Sb and the upper plate Sc relatively move in the horizontal direction, and the sphere Sa rolls along with this relative movement, so that the earthquake energy To absorb the seismic isolation of the upper building. For example, in a building of a scale such as a house, as the seismic isolation device S, about 13 or 14 such single-ball type rolling bearings are installed per building. The number of installations and installation positions are determined according to the size of the building and the floor plan.

  In addition, on the lower surface of the upper plate Sc and the upper surface of the lower plate Sb sandwiching the sphere Sa, there are provided rolling regions having a substantially circular shape in plan view for rolling the sphere Sa. Each of the moving regions is formed to be a substantially spherical concave surface. Accordingly, when the shaking is settled, the sphere Sa is rolled toward the bottom of the concave curved surface by the action of gravity. As a result, the sphere Sa and the upper plate Sc return to their original positions and are restored to the state before the earthquake.

  The seismic isolation device S is supported on the fixed plate S1 as described above and joined to the foundation B and the steel pedestal portion of the building. Since the seismic isolation device S of this example cannot restore the spherical body Sa to the correct restoration position at the time of restoration unless the lower dish Sb is fixed horizontally, it is necessary to ensure the horizontal accuracy of the lower dish Sb. Therefore, the fixing plate S1 is temporarily fixed to the anchor bolt Va before being fixed by the non-shrink mortar C, and an accurate level adjustment is performed with reference to the reference height measured by a surveying instrument or the like as described above. After that, fine adjustment of the height and inclination by the level adjustment bolt Vb is performed and alignment is performed. With such a configuration, the fixed plate S1 and the seismic isolation device S can be attached with high accuracy, and the seismic isolation device S can be operated and returned satisfactorily.

It is a perspective view of the anchor ruler of this embodiment attached to the basic formwork. It is a top view of the anchor ruler of this embodiment attached to the basic formwork. It is a top view of the anchor ruler of this embodiment attached to the basic formwork. It is explanatory drawing of the shape of a plate. It is a top view of a plate. It is a top view of a plate. It is a perspective view of a formwork attaching part. It is a section explanatory view (XX sectional view of Drawing 2) of an anchor ruler hung on a basic formwork. It is explanatory drawing of the foundation constructed using the anchor ruler. FIG. 10 is an explanatory cross-sectional view of a foundation constructed using an anchor ruler (Y-Y cross-sectional explanatory view of FIG. 9). It is explanatory drawing of the building part in which the seismic isolation apparatus was installed. It is explanatory drawing of the seismic isolation apparatus supported by the foundation.

Explanation of symbols

10. Plates 10a to 10h Side 11 Opening 12 Mounting holes 13a, 13b Mounting holes 14a, 14b Mounting hole 20 Formwork mounting portion 20A Hanging portion 20B Mounting portion 21 Hook Piece 22 ... Vertical piece 23 ... Horizontal pieces 23a, 23b ... Bolt hole 23c, 23d ... Long hole 24 ... Height adjustment bolt 25 ... Nut A ... Anchor ruler B ... Foundation B1 ... Recess C ... None Shrinkage mortar F ... Basic formwork P ... Widing pipe Pa ... Extension pieces H1, H2 ... Dimensions L1, L2, L3 ... Dimensions S ... Seismic isolation device Sa ... Sphere Sb ... Lower plate Sc ... Upper plate S1 ... Fixing plate Va Anchor bolt Vb Level adjustment bolt Vc Level adjustment nut

Claims (7)

A positioning jig attached to a foundation form for forming a foundation of a building,
A plate-like plate formed so as to be disposed at a predetermined position in the foundation mold in a state in which an embedded member embedded in the foundation is attached;
A mold part provided with a hook part that can be hooked to the upper end of the base formwork at the upper end part, and an attachment part that can be attached to the lower end of the plate so that the plate can be adjusted in height. A positioning jig characterized by The hooking portion is formed of a bent plate material, and has a substantially U-shaped hook piece that can be externally fitted to the upper end of the foundation mold, and downward from the lower end of the hook piece along the inner surface of the foundation mold And a horizontal piece extending substantially horizontally from the lower end of the vertical piece toward the inside of the basic formwork,
The mounting portion includes a bolt member having an upper end inserted into a predetermined position of the horizontal piece and a lower end inserted into a predetermined position of the plate, and a nut member screwed into one end of the bolt member. 2. The positioning jig according to claim 1, wherein a retaining portion is provided at the other end of the member so that the plate can be suspended below the horizontal piece so as to be adjustable in height. .   3. The horizontal piece or the plate is formed with a long hole, and the bolt member is inserted into the long hole so that a horizontal position of the plate can be adjusted. Positioning jig. The plate has a shape of an overlapped portion in which one of two substantially squares of different sizes is rotated by a predetermined angle with respect to the other and overlapped,
The plate is aligned in a first attachment state in which a side that overlaps one of the two substantially square sides is substantially inscribed in the formwork surface of the basic formwork, and the formwork surface The positioning jig according to claim 1, wherein an attachment hole for inserting the bolt member and attaching the mold attachment portion is formed in an inscribed side.   The plate is formed with a first fixing portion capable of being attached so that the embedded member is disposed at an anchor member position in a first foundation shape formed by the foundation mold in the first attachment state. The plate is rotated by a predetermined angle with respect to the first mounting state so as to be substantially inscribed in a form surface of a base form for forming a second base form different from the first base form. The second fixing portion capable of being attached so that the embedded member is disposed at an anchor member position in the second foundation shape in the second attached state. Positioning jig.   2. The positioning jig according to claim 1, wherein the embedded member is made of a box punching material for forming a concave portion in which an anchor bolt is implanted in the foundation.   The positioning jig according to claim 6, wherein a seismic isolation device is supported on an upper end surface of the foundation in which the boxing material is embedded, and the seismic isolation device is bonded and fixed to the anchor bolt.

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