JP2000136572A - Method for fixing sill and pedestal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for fixing a sill and a pedestal for easily, rapidly and firmly fixing the sill and the pedestal on predetermined positions on a foundation. SOLUTION: A method for fixing a sill 2 and a pedestal 3 on the foundation 1 of a building is disclosed. During placement of the foundation 1, a first metal fitting 4 having a sliding member 41 slidably enclosed therein is buried and fixed in the upper end of the foundation 1 by use of a predetermined fixing tool 5. Then a second metal fitting 6 being position-adjustable in a different direction from the sliding direction of the sliding member 41 and having at its top a rod-shaped part 6 projecting from the sill 2 is placed in a predetermined position on the foundation 1 by use of a predetermined positioning ruler 7. Next, the second metal fitting 6 is fixed in the predetermined position via the sliding member 41 and the sill 2 where a storage hole part 21 for the second metal fitting 6 is formed in a portion corresponding to the predetermined position is laid over the foundation 1 in such a manner that the second metal fitting 6 is fitted into the storage hole part 21. The pedestal 3 is fixed via a third metal fitting 8 to the rod-shaped part 6a of the second metal fitting 6 projecting from the upper surface 2a of the sill 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of fixing a base and a pedestal, and more particularly, to a method of easily, quickly and firmly fixing a base and a pedestal to a predetermined position on a foundation. The present invention relates to a method of fixing a base and a column base that can be performed.

[0002]

2. Description of the Related Art In recent years, higher seismic performance has been demanded for houses. Therefore, a so-called hole-down metal fitting is used for a joint between a column base and a base. Is getting more and more.
In order to obtain the expected bonding strength using such a hole-down metal, it is necessary to previously install an anchor bolt at a precise position on a foundation and fix one end of the anchor bolt to the anchor bolt. It is. However, installation work of anchor bolts is generally performed manually by relying on a water thread at the time of placing concrete at the foundation rising portion, and the anchor bolts are accurately installed at predetermined positions of the foundation. It is difficult.

For this reason, conventionally, it is not possible to fix the column pedestal at a predetermined position set in advance,
Even if it can be fixed at a predetermined position set in advance,
In some cases, the expected original joining strength cannot be obtained between the foundation, the base and the column base. In addition, it is difficult to accurately install the anchor bolt on the foundation so as to match the position of the hole formed in the base in advance. In a factory or the like, it is impossible or difficult to perform the so-called pre-cut processing.

[0004] Further, as a joining metal fitting other than the anchor bolt, a metal fitting for fixing a pillar on a base by fitting and fixing a metal fitting of a column base, and tightening the metal fitting to an anchor member embedded and fixed in a foundation is known. Are known. According to this joint, since the column base is fixed to the foundation at the shaft portion of the column, if the installation position of the anchor member is accurate, an excellent pull-out strength can be obtained at the joint between the column base and the base (or the foundation). Can be obtained. However, in such a joint fitting as well, in the same manner as in the hole-down hardware, the anchor member must be drilled on site, and the installation position of the anchor member is shifted. In such a case, there is a problem that the column pedestal cannot be fixed at an appropriate position or an expected original joining strength cannot be obtained.

Accordingly, it is an object of the present invention to provide a method of fixing a base and a pedestal in which the base and the pedestal can be easily, quickly and firmly fixed at predetermined positions on a foundation.

[0006]

According to the first aspect of the present invention, there is provided a method of fixing a base and a column base on a foundation of a building, wherein a sliding member is slidable inside the foundation when the foundation is driven. The stored first metal fitting is buried and fixed to the upper end of the base using a fixing tool, and the position thereof can be adjusted in a direction different from the sliding direction of the slide member, and has a rod-like part projecting from the base at the upper part. Using a predetermined positioning ruler for the second metal fitting,
After the position is adjusted to a predetermined position on the foundation, the base is fixed to the predetermined position via the slide member, and a base in which a hole for accommodating the second metal fitting is formed at a position corresponding to the predetermined position. A second metal fitting is laid on the foundation so as to be fitted into the accommodation hole, and the column base is directly or via a third metal fitting on the rod-shaped part of the second metal fitting protruding from the upper surface of the base. The above object has been achieved by providing a method of fixing a base and a column pedestal, characterized by fixing a center portion.

According to a second aspect of the present invention, the positioning ruler has a hole for the second metal fitting and a display for displaying a center position of the second metal fitting. 1
The above object has been achieved by providing a method for fixing a base and a column base described in (1).

According to a third aspect of the present invention, the fixing tool has a form engaging portion fixed to the form, and a holding portion which can be temporarily fixed to the first metal fitting via the slide member. The above object has been achieved by providing a method of fixing a base and a column base according to claim 1 or 2 characterized by the following.

According to a fourth aspect of the present invention, the slide member is fixed to a predetermined position in the first metal fitting at the same time when the second metal fitting is fixed on the first metal fitting. The above object has been achieved by providing a method for fixing a base and a column base according to any one of claims 1 to 3 characterized by the following.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for fixing a base and a column base according to the present invention will be described below with reference to the drawings.
Here, FIG. 1 is a perspective view showing a state where the first metal fitting is fixed to the mold using a fixing tool, and FIG. 2 is a part of a state where the first metal fitting is embedded and fixed at the upper end portion of the foundation. FIG. 3 is a cutaway perspective view, and FIG. 3 is a perspective view showing members for fixing a second metal fitting (part) at a predetermined position on a foundation.
FIG. 4 is a perspective view showing a state after the position adjustment of the second fitting;
FIG. 5 is a perspective view showing a state in which the base and the column base are fixed via the second metal fitting fixed on the foundation. FIG. 6 is a perspective view of the base, the base and the column base obtained by the method of the present embodiment. It is sectional drawing which shows a fixing structure.

The method of fixing the base and the column pedestal according to the present embodiment is as follows.
As shown in FIGS. 1 to 6, a method for fixing a base 2 and a column base 3 on a foundation 1 of a building, wherein a first sliding member 41 is slidably housed inside the foundation 1 when the foundation 1 is cast. Hardware 4
Is buried and fixed to the upper end of the base 1 using a fixing tool 5 having a mold engaging portion 51 and a holding portion 52 capable of temporarily fixing the first metal fitting 4, and the sliding direction of the slide member 41. The position can be adjusted in a direction different from (the longitudinal direction of the foundation 1, the X direction in FIG. 4) (for example, the width direction of the foundation 1, the Y direction in FIG. 4),
A second metal fitting 6 having a bar-shaped portion 6a projecting from the base 2 at an upper portion is arranged at a predetermined position on the foundation 1 by using a predetermined positioning ruler 7, and then the predetermined position is set via the slide member 41. And the base 2 having the accommodation hole 21 of the second metal fitting 6 formed at a position corresponding to the predetermined position so that the second metal fitting 6 is inserted into the accommodation hole 21. A central portion (shaft portion) of the column base 3 is fixed via a third metal member 8 to a bar-shaped portion 6a of the second metal member 6 which is laid on the foundation 1 and protrudes from the upper surface 2a of the base 2.

Hereinafter, the method of fixing the base and the column base of the present embodiment will be described in more detail. First, various fittings used in the method of the present embodiment will be described. <First metal fitting 4> The first metal fitting includes an anchor main body 42 having a box-like form and a slide member 41 slidably housed inside the anchor main body 42. As shown in FIG. 2, the anchor body 42 includes a rectangular bottom plate 4a, a pair of uprights 4b, 4b rising from both side edges along the longitudinal direction of the bottom plate 4a, and each upright 4b. , 4b from the upper end of the anchor body 42 toward the center in the width direction of the anchor body 42.
Both longitudinal ends of the anchor body 42 are closed by side plates 43. The opening cavity 40 is provided with the bottom plate 4.
a, a space surrounded by the elevations 4b, 4b and the latches 4c, 4c. A U-shaped deformed reinforcing bar 44 is welded and fixed to outer surfaces of the pair of upright portions 4b, 4b of the anchor body 42.

The slide member 41 has a substantially rectangular parallelepiped shape, and has a pair of notched grooves corresponding to the engaging portions 4c, 4c on both side edges of the upper end. The slide member 41 includes:
It is slidably received in the open cavity 40. A female screw portion 41a is formed in the upper central portion of the slide member 41.

<Second metal fitting 6> As shown in FIG. 6, the second metal fitting 6 has a lower bolt 61 screwed to a female screw portion of the slide member 41 and a lower bolt 61 mounted on a bottom surface portion. A cylindrical anchor core 63 having a long hole 63a and an upper lid member 62 is mounted in an upper opening, and an upper bolt 64 connected to an upper portion of the anchor core 63. The upper lid member 62 has a disk shape, and a bolt mounting hole 65 for rotatably locking the head of the upper bolt 64 is formed in the center thereof. The upper bolt 64 is mounted in the bolt mounting hole 65 from the inside of the anchor core 63, and the male screw portion of the upper bolt 64 forms the rod portion 6 a of the second metal fitting 6.

As shown in FIG. 3, the lower bolt 61 is a bolt having a concave portion 61a for the hexagon wrench 10 on its head. The long hole 63a of the anchor core 63
Is a through-hole extending in the radial direction of the bottom surface of the anchor core 63, and the position fixed by the head of the lower bolt 61 can be freely set in the longitudinal direction. The long hole 63a is formed by end milling with a drill having a diameter of 16 mm and a straight portion of 11.5 mm. When a lower bolt 6 having a diameter of 16 mm is used, the relative position between the anchor core 63 and the lower bolt 6 is reduced. Can be adjusted with a maximum width of 11.5 mm. The upper lid member 62 is screwed to the upper end of the anchor core 63. The upper bolt 9 has a head portion that is locked in the bolt mounting hole 65 and a shaft portion that can penetrate the base 2 and protrude from the upper surface 2 a of the base 2.

<Third metal fitting 8> The third metal fitting 8 has a female screw portion screwed to the upper bolt 64 on the inner peripheral surface of the lower end portion, and has a pair of holes 81, 81 for inserting a rod-shaped fixing member on the side surface. It is a steel cylindrical member having two sets at the top and bottom.
A rod-shaped fixing member 82 such as a drift pin or a bolt is inserted into an insertion hole 30 formed from the lower end surface of the column base 3 along the axis and inserted into an insertion hole 31 formed from the side surface of the column base 3.
Is fixed to the center (shaft) of the column base 3. Note that a drift pin is particularly preferable as the rod-shaped fixing member 82.

Next, a description will be given of a method of fixing the base and the column pedestal according to the present embodiment using the above-mentioned fittings. First, as shown in FIG. 1, when concrete is cast between a pair of molds 9 and 9 to form a rising portion of a foundation, the first metal fitting 4 is fixed to a predetermined position using a special fixing tool 5. Hold and fix at the position.

The fixing tool 5 has a formwork engaging portion 51 fixed to the formwork 9 and a holding portion 52 that can be temporarily fixed to the first metal fitting 4 via the slide member 41. . More specifically, the holding portion 52 is provided with the fixing tool 5.
The first member 4 is provided with a closing portion 53 that closes the opening of the opening cavity portion 40 of the first member 4 at a lower portion thereof when the device is fixed to the mold. Further, the holding portion 52 has a bolt mounting hole (not shown) at the center thereof. Then, the temporary fixing of the first metal fitting 4 to the holding portion 52 is performed by mounting the bolt 54 in the bolt mounting hole,
This is performed by screwing into the female screw portion of the slide member 41 housed in the first metal fitting 4.

The mold engaging portion 51 is fixed to the mold 9 by being clamped with a clamp 55. The end of the form engaging portion 51 is configured to be able to engage with the outer edge 9a of the form 9 and the like, and the form engaging portion 5 is directly used without using a clamp 55 or the like.
1 may be fixed to the formwork 9.

As described above, in a state where the first metal fitting 4 is fixed to the formwork 9 by using the fixing tool 5, concrete is cast between the formwork 9, 9 to form the foundation 1. As shown in FIG. 2, the first metal fitting 4 is preferably fixed along the longitudinal direction of the foundation 1 and slightly protruding from the upper surface of the concrete. After the concrete has hardened, if the bolt 54 is removed, the holding portion 52 and the first metal fitting 4 can be separated. Then, the opening cavity 4 of the first metal fitting 4
After closing the opening 0 with an upper closing plate (not shown), the top is leveled using a mortar or the like. The top closure plate (not shown) is removed before performing the next operation. In this manner, the first metal fitting 4 is buried and fixed to the upper end of the foundation 1 with the open cavity 40 being open upward. Note that the fixing tool 5 is attached to the first metal fitting 4
Can be temporarily fixed so that it can be detached and used repeatedly.

When a step is generated between the upper end surface of the anchor body 42 and the upper end surface of the foundation 1 such as when such an upper closing plate is used, the second fitting 6 is placed on the first fitting 4. Before placing the washer, a washer having a predetermined thickness, for example, FIG.
It is desirable that one or an appropriate number of U-shaped washers 45 as shown in (1) are stacked and placed to form a plane flush with the upper end surface of the base 1. The anchor core 63,
It is placed on the plane and is stably fixed on the plane by the lower bolt 6.

Next, as shown in FIG. 4, the anchor core 63 is placed on the first metal fitting 4 so that the long hole 63a is oriented along the width direction of the base 1 (Y direction). Then, the lower bolt 61 is inserted into the elongated hole 63a and lightly screwed into the female screw portion 41a of the slide member 41. Thus, the slide member 41 and the anchor core 63
If the lower bolt 6 is lightly temporarily fixed to such an extent that both can move, the anchor core 63
The position of the foundation 1 in the longitudinal direction (X direction) can be adjusted by the sliding of the sliding member 41. The sliding direction of the sliding member 41 is different from the sliding direction of the sliding member 41 (in the example shown in FIG. 1 in the width direction (Y direction in FIG. 4).

When adjusting the position of the anchor core 63, a positioning ruler 7 as shown in FIGS. 3 and 4 is used.
The positioning ruler 7 has a circular hole 71 a corresponding to the outer shape of the second metal fitting 6, and two types of display sections for displaying the center position of the second metal fitting 6. That is, one display unit is
The display lines A1 to A4 are displayed on the positioning ruler 7 along two straight lines passing through the center position of the hole 71a and orthogonal to each other, and the other display unit has a rectangular shape of the positioning ruler 7. And a display line B2 similar to the shape of the outer peripheral portion B1 displayed inside the outer peripheral portion B1. The positioning ruler 7 shown in FIG. 3 has an outer shape of 120 mm square, and the display line B2 has a 105 mm square. Also,
The hole 71 in each of the outer peripheral portion B1 and the display line B2
The distances from the center of a to the four sides constituting each are the same.

In the case of positioning using the display lines A1 to A4, as shown in FIG. 4, the positioning ruler 7 is fitted to the anchor core 63 temporarily fixed on the foundation 1, and the positioning is performed. Move the ruler 7 back and forth and left and right, and
1, A2 are displayed on the upper surface of the foundation 1 in advance, and are aligned with the longitudinal and width direction ink marks C1, C2 indicating the positions of the accommodation holes 21 of the base 2 laid on the foundation 1. . Thereby, the position of the anchor core 63 can be easily and quickly adjusted to the position of the accommodation hole 21.

When positioning is performed using the display section B1, the positioning ruler 7 is similarly fitted to the anchor core 63 temporarily fixed on the foundation 1, and the positioning ruler 7 is moved back and forth and right and left. , Two of the four sides constituting the display line B1 are displayed on the upper surface of the base 1 in advance.
It is aligned with the longitudinal direction and width direction inks D1 and D2 indicating the positions of the accommodation holes 21 of the base 2 laid on the base. Thereby, the position of the anchor core 63 is adjusted to the accommodation hole 2.
1 can be easily and quickly adjusted. still,
The positioning ruler 7 shown in the figure is a transparent body so that the black ink C1, C2 and the black ink D1, D2 in the longitudinal direction and the width direction can be easily viewed.

After the second metal fitting 6 is adjusted to a predetermined position on the foundation using the positioning ruler 7 in this manner,
The second metal fitting 6 is fixed at the position (the predetermined position) via the slide member 41. Specifically, the lower bolt 61 may be screwed tightly into the female screw portion 41a of the slide member 41. Thus, the anchor core 63 is firmly fixed on the first metal fitting 4. This second
At the same time when the metal fitting 6 is fixed on the first metal fitting 4, the position of the slide member 41 in the first metal fitting 4 is fixed.

Next, the upper lid member 62 is screwed into the upper opening of the anchor core 63. At the time of this screwing, the upper bolt 64 is previously mounted in the bolt mounting hole 65 from inside the anchor core 8.

Next, as shown in FIG. 5A, the base 2 is placed on the foundation 1 such that the anchor core 63 and the like are inserted into the accommodation holes 21. The accommodation hole 21 is formed immediately below a predetermined position where the column 3 is to be erected. FIG. 5 (a) shows the upper surface of the
As shown in (b), the upper end portion 6a of the upper bolt 64 protrudes.

The third metal fitting 8 is screwed into the upper end 6a of the upper bolt 64. The height of the holes 81 for inserting the rod-shaped fixing member from the upper surface of the base, and the height of the holes 81 for inserting the rod-shaped fixing member from the lower end surface of the column material placed on the base 2 are set. The process is performed until the height is substantially the same as the height of the through holes 31.

Then, the column base 3 is placed on the base 2 so that the third metal fitting 8 is inserted into the insertion hole 30 provided in the column base 3, and the side surface of the column base 3 is provided. The insertion holes 31, 31 and the holes 81,
The third metal fitting is fixed to the column member 3 by inserting the rod-shaped fixing metal fittings 82, 82 through 81.

According to the method of fixing the base and the column pedestal of the present embodiment, the base and the column pedestal can be easily, quickly and firmly fixed at predetermined positions on the foundation. For example, when fixing the first metal fitting 6 to the foundation 1, high accuracy is not required as in the case of the installation of the conventional anchor bolt, and thus the fixing of the first metal fitting 6 is easily and quickly performed without a skilled person. It can be carried out. Also, the first fitting 6
At the time of installation, since the fixing tool 5 for holding and fixing the first member 6 using the female screw portion of the slide member 41 is used, the first member 6 can be easily and reliably fixed to the upper end of the foundation. it can.

Further, in the method of fixing the base and the column pedestal of this embodiment, the position adjustment in two directions is performed by the slide member 41 and the long hole 63a of the anchor core 63, so that the first metal fitting 4 is installed. Even if there is a slight shift in the position, the shift can be corrected, and the second metal fitting 6 (anchor core 63) can be reliably fixed at an appropriate position.
Therefore, the column base 3 can be securely and firmly fixed at a predetermined appropriate position. In addition, the second
Since the storage hole 21 for the metal fitting 6 can be formed in advance, the base 2 can be processed by so-called pre-cut processing in a factory or the like, and the on-site work can be reduced. In addition, since the position adjustment ruler 7 is used to adjust the position in two horizontal directions, it is easy to adjust the fixing position of the second metal fitting 6 and, consequently, fix the column base 3 to an appropriate position. , Quickly and reliably.

The method of fixing the base and the column pedestal of the present invention is not limited at all by the above embodiment, and can be appropriately changed without departing from the gist of the present invention. For example, a positioning ruler 7 'as shown in FIG. 7 can be used as the positioning ruler. Further, instead of the configuration of the rod-shaped portion 6a of the second metal fitting, the rod-shaped portion 6a may be directly fixed to the column base 3. In addition, the shape, dimensions, and the like of each part of each fitting can be appropriately changed without impairing the effects of the present invention.

[0034]

According to the present invention, it is possible to provide a method of fixing a base and a pedestal in which the base and the pedestal can be easily, quickly and firmly fixed at a predetermined position on the foundation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a first metal fitting is fixed to a mold using a fixing tool.

FIG. 2 is a perspective view showing a state in which a first metal fitting is embedded and fixed to an upper end portion of a foundation, with a part thereof being cut away.

FIG. 3 is a perspective view showing members for fixing a second metal fitting (part) to a predetermined position on a foundation.

FIG. 4 is a perspective view showing a state after a position adjustment of a second metal fitting.

FIG. 5 is a perspective view showing a state in which a base and a pedestal are fixed via a second metal fitting fixed on a foundation.

FIG. 6 is a sectional view showing a fixing structure of a foundation, a base, and a column pedestal obtained by the method of the present embodiment.

FIG. 7 is a perspective view showing another example of the positioning ruler according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation 2 Base 3 Column base 4 First metal fitting 40 Open cavity 41 Slide member 42 Anchor main body 5 Fixing tool 51 Formwork engaging part 52 Holding part 6 Second metal fitting 61 Lower bolt 62 Upper lid member 63 Anchor core 63a Long hole 64 Upper bolt 6a Bar 7 Positioning ruler 8 Third bracket 9 Formwork

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E125 AA03 AA18 AA45 AB12 AC01 AC23 AG03 AG04 AG12 AG60 BA04 BA23 BA26 BA34 BA45 BB08 BB13 BB18 BB19 BB24 BB26 BB30 BD01 BE07 BE08 BF04 BF08 CA03 CA13 CA14 EA05 EA13 EA33

Claims (4)

[Claims] 1. A method for fixing a base and a column base on a foundation of a building, the first metal fitting having a slide member slidably housed therein when the foundation is cast, using a fixing tool. A second portion having a rod-like portion which is embedded in and fixed to an upper end portion of the foundation, can be adjusted in a direction different from the sliding direction of the slide member, and has a bar-like portion projecting from the base at an upper portion thereof;
After adjusting the position of the metal fitting to a predetermined position on the foundation using a predetermined positioning ruler, the metal fitting is fixed to the predetermined position via the slide member, and the second metal fitting is stored in a location corresponding to the predetermined position. A base on which a hole is formed is laid on the foundation so that the second metal fitting is inserted into the accommodation hole, and a rod-shaped part of the second metal fitting protruding from an upper surface of the base is provided on the base.
A method for fixing a base and a column base, wherein the center of the column base is fixed directly or via a third metal fitting. 2. The base and column according to claim 1, wherein the positioning ruler has a hole for the second metal fitting and a display for displaying a center position of the second metal fitting. How to fix the legs. 3. The fixing tool according to claim 1, wherein the fixing tool includes a mold engaging portion fixed to the mold, and a holding portion that can be temporarily fixed to the first metal fitting via the slide member. The method for fixing a base and a column base according to claim 1 or 2. 4. The apparatus according to claim 1, wherein the slide member is fixed to a predetermined position in the first metal fitting at the same time when the second metal fitting is fixed on the first metal fitting. Item 4. The method for fixing a base and a column base according to any one of Items 1 to 3.