JP3032104B2 - Fixing method of pillar lower end - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pillar lower end fixing structure which firmly fixes the lower end of a pillar supported by a shoe stone and has a sufficient resistance even when a lift acts. And a metal fitting for fixing the lower end of a pillar used in the fixing structure or the fixing method.

[0002]

2. Description of the Related Art In a wooden building or the like, a pillar may be supported via a shoe stone. For example, the pillars supporting the eaves of the entrance porch emphasize the appearance, and the pillars are erected on natural stone shoes. Such pillars are not connected to other lateral members near the lower end, i.e. the lower end is independent, so the lower end of the pillar must be fixed to the shoe stone and the foundation. As a structure for fixing the lower end of such a pillar, for example, a structure as shown in FIG. 8 is known.

In the structure shown in FIG. 8A, a shoe stone 32 is provided on a concrete foundation 33, and a concave portion 32a is provided on the upper surface of the shoe stone 32. On the other hand, a projection 31a (dove) is provided at the lower end of the column 31, and the projection 31a is fitted to the recess 32a of the shoe stone,
The pillar 31 is supported by the shoe stone 32 and fixed so as not to move in the horizontal direction.

In the structure shown in FIG. 8 (b), an anchor bolt 44 having a lower end embedded in a concrete base 43 is provided. It is inserted into a vertical hole provided above the lower end surface of the column. A side hole 41a is formed in the side surface of the column 41 so as to communicate with the vertical hole. A nut is screwed into the end of the anchor bolt 44 from the side hole 41a. Kutsuishi 42
And can be fixed to the base.

[0005]

However, the conventional structure or fixing method as described above has the following problems. In the structure as shown in FIG. 8A, only the lower end of the pillar is fitted in the recess of the shoe stone, and when a lift is generated in the pillar, it cannot be resisted. In general, the weight of the upper structure acts on the pillar, and the pillar does not rise from the stone at normal times, but the eaves blow up during a storm on pillars that support a large overhanging eaves such as an entrance porch There is a risk that the lower end of the pillar will rise and come off the shoe stone.

In the structure or fixing method as shown in FIG. 8B, the anchor bolt can be used to resist lift. Must be supported in a suitable position. In addition, after the concrete has hardened, the shoe stone must be set at the correct position and height, and there is a problem that this work requires a lot of trouble.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to enable the lower end of a pillar to be firmly fixed via a shoe stone even when a lift acts. Further, it is an object of the present invention to provide a pillar lower end fixing structure excellent in workability, a column lower end fixing method, and a column lower end fixing metal which can be used in the fixing structure or the fixing method.

[0008]

SUMMARY OF THE INVENTION The first aspect of the present invention solves the above-mentioned problems, and has a structure for fixing a lower end portion of a pillar erected on a shoe stone. A pillar seat plate having screw holes is fixed to the pillar lower end surface,
A shoe stone that supports the column under the column seat plate,
A base plate inserted under the shoe stone and the column seat plate are fastened and fixed by anchor bolts, and the base plate is fixed to a base portion supporting the shoe stone. is there.

According to a second aspect of the present invention, there is provided a method of fixing a lower end portion of a column, wherein a column seat plate having a screw hole is fixed to a column lower end surface, and the column is provided below the column seat plate. A through hole is previously drilled in the shoe stone supporting the stone and the base plate inserted under the shoe stone, and an anchor bolt is inserted into the through hole between the shoe stone and the base plate to form a tip. Is screwed into a screw hole of the pedestal plate, and the pedestal plate, the shoe stone and the base plate are tightened and fixed, the base plate is set at a predetermined position and height, and a base portion for supporting the shoe stone. To be fixed.

[0010] The invention according to claim 3 is the above-mentioned claim 2.
In the method of fixing the lower end portion of the column, the mounting adjustment bolt is inserted into a plurality of mounting through holes provided in the base plate, and a nut is screwed into the mounting adjustment bolt, and then the base adjustment portion is mounted. The base plate is fixed by screwing into the fixed anchor body, and holding the base plate between the nut and the head of the mounting adjustment bolt.

According to a fourth aspect of the present invention, there is provided a metal fitting for fixing a lower end portion of a column, comprising a column seat plate having a screw hole and fixed to a lower end surface of the column, a base plate fixed to a base portion, Anchor bolts that are inserted into through holes provided in the base plate, are screwed into the screw holes of the column seat plate, and can be tightened by inserting shoe stones between the column seat plate and the base plate. And having the following.

According to a fifth aspect of the present invention, in the metal fitting for fixing the lower end portion of the pillar according to the fourth aspect, the anchor is fixed to a base portion by being inserted into a mounting through hole provided in the base plate. It has a mounting adjustment bolt that can be screwed on, and a nut that is screwed with the mounting adjustment bolt and clamps the base plate between the head of the mounting adjustment bolt.

[0013] In the first to fifth aspects of the present invention, the shape and thickness of the pillar seat plate may be appropriately adjusted as long as the pillar seat plate is fixed to the pillar lower end surface and stably abuts on the shoe stone. Design is possible. The screw holes provided in the column seat plate may be formed by providing a through hole in the column seat plate and fixing a nut so that the center position substantially coincides with the through hole, or provided in the column seat plate. A female screw may be provided on the inner peripheral surface of the through hole. The base plate can be fastened and fixed to the shoe stone by means of anchor bolts, and if it can be fixed to the foundation, the shape and dimensions can be appropriately designed. The structure and shape of the foundation, such as a foundation board on which concrete or the like is laid almost flat, an independent foundation made of concrete or the like, a cloth foundation, or the like, can be appropriately selected. Further, as a structure for fixing the base plate to the base portion, for example,
The base plate is firmly fixed, such as a structure in which the anchor body is fixed to the base and the base plate is fixed by bolts screwed to this anchor, or a structure in which the base plate is embedded with concrete, mortar, etc., and fixed integrally with the base. The structure can be appropriately selected as long as the structure is satisfied.

[0014] In the configuration according to claim 3 or 5, the anchor body is provided in a hole formed in a base portion,
A female screw may be a so-called hole-in anchor that fixes a substantially cylindrical body cut in the axial direction by the action of a wedge, or may be an adhesive such as an epoxy resin filled in a hole and fixed. Good.

[0015]

According to the first aspect of the present invention, in the fixing structure of the lower end of the column, a column seat plate fixed to the lower end surface of the column;
Since the shoe stone and the base plate are fastened and fixed by the anchor bolts, and the base plate is further fixed to the base portion, the lower end portion of the pillar is firmly fixed to the base via the shoe stone and the base plate. Therefore, even if lift is generated on the pillar, the lower end of the pillar does not float up from the shoe stone or fall off the shoe stone, resulting in a highly reliable structure.
In addition, before fixing the column in a predetermined position, the column, the shoe stone and the base plate are tightened with an anchor bolt so as to be integrated, and then the base plate can be fixed to the base portion. The work of setting and fixing each of them at an accurate position can be omitted, and workability is improved.

In the method for fixing a lower end of a column according to the second aspect of the present invention, a column seat plate, a shoe stone, and a base plate fixed to a lower end surface of a column are fastened and fixed, and then the base plate is mounted on a base. Since it is fixed to the portion, the work of setting and fixing the lower end of the column at an accurate position can be performed efficiently, and furthermore, a highly reliable fixing structure of the lower end of the column that can resist the lift can be obtained. .

According to the third aspect of the present invention, there is provided a method of fixing a lower end portion of a column, wherein a plurality of mounting adjustment bolts are inserted into a base plate, and these mounting adjustment bolts are fixed to a base portion. Since the base plate is screwed into the body and fixed, the base plate can be fixed with a simple operation, and a fixing structure that is strong against lift can be obtained. Also,
The height of the base plate can be adjusted by appropriately rotating the mounting adjustment bolt and the nut screwed thereto, and the lower end of the column can be accurately fixed.

According to the fourth aspect of the present invention, there is provided a metal fitting for fixing a lower end portion of a column, wherein a column seat plate fixed to a column lower end surface, a base plate fixed to a base portion, and a base plate and the column seat plate. Since it has an anchor bolt which can insert the shoe stone and tighten them, the pillar, the shoe stone and the base plate can be easily fixed so as to be integrated. Further, after the column is set at a predetermined position, the base plate is fixed to the base portion, so that the column is firmly fixed to the base portion via the column plate, the shoestone, the base plate, and the anchor bolt. Therefore, the step of fixing the lower end of the column is simplified.

According to the fifth aspect of the present invention, the base plate is firmly fixed to the base portion by the plurality of mounting adjustment bolts, and the mounting adjustment bolt and the mounting plate are fixed at the time of construction. The height of the base plate can be adjusted by appropriately rotating the nut screwed on the base plate, so that the lower end of the column can be easily set to an accurate height.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram showing a fixing structure of a lower end portion of a pillar according to an embodiment of the present invention. In the fixing structure of the lower end of the pillar, the shoe stone 2 is installed on the foundation concrete part 13 and the pillar 1 is fixed and supported thereon, and the pillar seat plate 3 is fixed to the lower end face of the pillar with screws 4. The lower surface of the column seat plate 3 is in contact with the shoe stone 2 made of natural stone, and the lower surface of the shoe stone 2 is in contact with a base plate 7 made of steel. The column seat plate 3 is shown in FIG.
As shown in FIG. 5, in addition to the fixing screw hole 3a, a through hole 3b is provided near the center, and a nut 5 is welded and fixed to the upper surface so that the center matches the through hole 3b. . Further, through holes 2a, 7a are provided in the vertical direction substantially at the center positions of the base plate 7 and the shoe stone 2, respectively, and anchor bolts 6 inserted from below are fixed to the upper surface of the column seat plate 3. It is screwed with the nut 5, and the column seat plate 3, the shoe stone 2, and the base plate 7 are fastened and fixed. In addition, a concave portion 1a is provided on the lower end surface of the pillar 1 to allow the tips of the nut 5 and the anchor bolt 6 to protrude.

As shown in FIG. 3, the base plate 7 has mounting through holes 7b near both ends in addition to the through holes 7a through which the anchor bolts 6 are inserted, and the mounting adjusting bolts 8 are inserted from above. The mounting adjustment bolt 8
And a nut 9 screwed to the base plate 7
Is pinched. The tip of the mounting adjustment bolt 8 is a hole-in anchor 1 fixed to the foundation concrete 11.
It is screwed into 0 and fixed. The base plate 7, the mounting adjustment bolts 8 and the lower part of the shoe stone 2 are buried with a finishing mortar 12, and are filled with the finishing mortar so that no gap is formed below the shoe stone 2 and the base plate 7, and the vertical part from the upper part. Load foundation concrete 1
1 is supported.

Next, a method of fixing the lower end portion of the pillar, which is one embodiment of the invention according to claim 2 or 3, will be described. First, as shown in FIG. 4A, a column seat plate 3 with a nut 5 attached to the upper surface by welding is fixed to the lower end surface of the column 1 with screws 4. The upper end of this pillar is joined to the eave 20 supported by the temporary support 21 as shown in FIG. 5 (a) and 5 (b) at the lower end of the pillar
Abuts the shoe stone 2 and the base plate 7 as shown in FIG.
These are fastened and fixed by the anchor bolts 6.

On the other hand, the basic concrete 11
(A), as shown in FIGS. 6 (b) and 6 (c), a hole is formed by a hammer drill or the like, and the hole-in anchor 10 is formed.
Insert and secure. When the anchor body is inserted into the hole, the outer diameter of the hole-in anchor 10 is increased by the action of a wedge, and the side surface of the anchor body is strongly pressed against the inner peripheral surface of the hole to be fixed. Next, as shown in FIG. 6D, the mounting adjustment bolt 8 is inserted into the mounting through holes provided near both ends of the base plate 7, and the nut 9 is screwed. Screw into 10. Then, the head of the mounting adjustment bolt is brought into contact with the base plate 7, the height and the level are adjusted, and the nut 9 is tightened and fixed.

Subsequently, as shown in FIG. 7, a finishing mortar 12 is spread over the foundation concrete 11 and is filled without gaps under the shoe stone 2 and the base plate 7.
, The base plate 7 and the mounting adjustment bolt 8 are embedded and fixed.

Although a hole-in anchor is used as the anchor in the above embodiment, a so-called chemical anchor may be used. This is because a capsule filled with adhesive such as epoxy resin is put in the hole drilled in the foundation concrete, and when the anchor body is inserted, the capsule is broken and the adhesive is applied to the inner surface of the hole and the anchor body. The anchor is fixed by curing the adhesive.

[0026]

According to the first aspect of the present invention, in the column lower end fixing structure, the column seat plate fixed to the column lower end surface, the shoe stone, and the base plate are fastened and fixed by anchor bolts. Since the base plate is fixed to the base portion, even if the column acts on the lift, the lower end portion of the column is firmly fixed to the base, and a highly reliable column lower end fixing structure can be obtained. Also, before fixing the pillar in place,
The workability is improved because the pillar, the shoe stone and the base plate can be tightened with the anchor bolt so as to be integrated. Further, according to the method for fixing the lower end portion of the pillar according to the second aspect, a highly reliable structure for fixing the lower end portion of the pillar can be obtained with an efficient operation. Furthermore, in the method of fixing the lower end of the pillar according to the third aspect, the base plate is fixed to the base with the plurality of mounting adjustment bolts, so that the base plate is firmly fixed against the lift and the height can be easily adjusted. Can be done. In the column lower end fixing bracket according to the invention of claim 4, a column seat plate fixed to the column lower end surface;
Since the shoe stone and the base plate can be fixed by fastening with an anchor bolt, the lower end of the pillar can be firmly fixed to the base portion by fixing the base plate to the base portion, and workability is also improved. The above claim 5
In the metal fitting for fixing the lower end of the column according to the invention described in (1), the height of the lower end of the column can be easily adjusted and fixed by the plurality of mounting adjustment bolts.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a fixing structure of a lower end portion of a pillar according to an embodiment of the present invention.

FIG. 2 is a plan view of a column seat plate used in the column lower end fixing structure shown in FIG. 1;

FIG. 3 is a plan view of a base plate used in the column lower end fixing structure shown in FIG. 1;

FIG. 4 is a construction procedure diagram showing a method of fixing a lower end of a pillar according to an embodiment of the invention described in claim 2 or 3;

FIG. 5 is a construction procedure diagram showing a method of fixing a lower end of a pillar according to an embodiment of the invention described in claim 2 or 3;

FIG. 6 is a construction procedure diagram showing a method of fixing a lower end of a pillar according to an embodiment of the invention described in claim 2 or 3;

FIG. 7 is a construction procedure diagram showing a method of fixing a lower end of a pillar according to an embodiment of the invention described in claim 2 or 3;

FIG. 8 is a schematic perspective view showing a conventional fixing structure of a column lower end portion.

[Explanation of symbols]

 Reference Signs List 1 pillar 2 shoe stone 3 pillar seat plate 4 screw 5 nut 6 anchor bolt 7 base plate 8 mounting adjustment bolt 9 nut 10 hole-in anchor 11 base concrete 12 finishing mortar 20 eaves 21 temporary support

Continuation of the front page (56) References JP-A-4-368517 (JP, A) JP-A-5-33351 (JP, A) Japanese Utility Model Application No. Sho 60-87911 (JP, U) Japanese Utility Model Application Utility Model No. Sho 63-23401 (JP , U) Shokai Sho 58-181744 (JP, U) Shokai Hei 2-21206 (JP, U) Shoko 37-6872 (JP, Y1) (58) Fields surveyed (Int. Cl. ⁷ , DB) Name) E04B 1/00 503 E02D 27/00 E04B 1/24

Claims (5)

(57) [Claims] 1. A fixing structure for a lower end portion of a pillar erected on a shoe stone, wherein a pillar seat plate having a screw hole is fixed to a pillar lower end surface, and a lower side of the pillar seat plate is fixed. Kutsuishi who supports the pillars,
A base plate inserted under the shoe stone and the column seat plate are fastened and fixed by anchor bolts; and the base plate is fixed to a foundation supporting the shoe stone. Fixed structure of the part. 2. A shoestone having a pillar seat plate having a screw hole fixed to a pillar lower end surface, and a shoestone below the pillar seat plate and supporting the pillar,
A through hole is drilled in advance with a base plate inserted under the shoe stone, an anchor bolt is inserted into a through hole between the shoe stone and the base plate, and a tip portion is screwed into the column seat plate. It is screwed into the hole and tightens and fixes the pedestal plate, shoe stone and base plate, and the base plate is set at a predetermined position and height, and is fixed to a foundation supporting the shoe stone. To fix the lower end of the pillar. 3. The method for fixing a lower end of a column according to claim 2, wherein mounting adjustment bolts are respectively inserted into a plurality of mounting through holes provided in the base plate, and a nut is inserted into the mounting adjustment bolt. After screwing into the anchor body fixed to the base portion, the base plate is clamped by the nut and the head of the mounting adjustment bolt, and the base plate is fixed. How to fix the part. 4. A column seat plate having a screw hole and fixed to a lower end surface of a column, a base plate fixed to a base portion, and inserted into a through hole provided in the base plate, and the column seat plate. And an anchor bolt screwed into the screw hole and fastened by inserting a shoe stone between the column seat plate and the base plate. 5. The mounting bracket according to claim 4, wherein the mounting bracket is inserted into a mounting through hole provided in the base plate and can be screwed to an anchor body fixed to a base. A fitting for fixing a lower end portion of a pillar, comprising: an adjustment bolt; and a nut screwed with the attachment adjustment bolt and holding the base plate between the head of the attachment adjustment bolt.