JP2003013508A - Fastening device of strut and groundsill - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastening device having earthquake-resistance and novel structure. SOLUTION: A groundsill 1 placed on a foundation concrete 2 and a base plate 5a of a joining hardware 5 formed by erecting a joining plate 5b on the base plate 5a and placed on the groundsill 1 are fastened to the foundation concrete 2 by an anchor bolt 4 projected on the foundation concrete 2 and a nut 8 engaged with the bolt. A strut 13 erected on the base plate 5a through a spacer 11 with which the nut 8 is engaged and the joining plate 5b inserted in the strut 13 through the spacer 11 are stopped to each other with a fixing lever 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening device for a pillar and a base in a wooden building.

[0002]

2. Description of the Related Art Tenon joining means are used, and in order to supplement joining (fastening) strength, so-called hole-down hardware (pulling hardware) is used to bond columns to foundation concrete through a foundation. .

[0003]

The above-mentioned conventional example is to supplement the joint strength, which does not work in tenon joint, by using the hole-down hardware, but the hole-down hardware is located at the position of the anchor bolt projecting on the foundation concrete. Since it is also arranged so as to project on the peripheral surface of the column, it must be housed in the wall, thus limiting the wall structure.

According to the present invention, similarly to the case where the hole-down hardware is used, the column can be fastened to the foundation concrete through the foundation, and various advantages such as freedom of selection of the wall structure by omitting the hole-down hardware can be obtained. It was created for the purpose of providing a promising novel structure of the pillar and the base fastening device.

[0005]

[Means for Solving the Problems] A base placed on a foundation concrete, and a substrate placed on the base of a joint metal article constituted by vertically arranging a joint plate on the substrate are projected on the foundation concrete. The anchor bolt and the nut screwed to the anchor bolt are tightened to the basic concrete, and the pillar is erected on the substrate through the spacer engaged with the nut, and the joint plate fitted into the pillar through the spacer. The basic means is that they are fixed to each other with a fixed rod, and the movement of the joining metal object with respect to the base is regulated by making the structure in which the substrate of the joining metal object is tightly fitted in the recess formed on the upper surface of the base. , A more stable fastening condition can be obtained for the foundation of pillars or foundation concrete.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show an embodiment of a fastening device for a pillar and a base according to the present invention. FIG. 1 is a vertical sectional view, FIG. 2 is a central vertical sectional view of FIG. 1, and FIG. The perspective view shown, FIG. 4 is a perspective view of the fastener, and FIG. 5 is a perspective view of the spacer.

In the figure, 1 is a foundation placed on a foundation concrete 2, and the foundation 1 is anchored to the foundation concrete 2 in a pair of through holes 3 and 3 arranged in the center along the longitudinal direction (finding direction). The pair of anchor bolts 4, 4 in which the portions 4a, 4a are embedded and projected are placed on the concrete foundation 2 as described above so that the bolt portions 4b, 4b of the pair of anchor bolts 4, 4 penetrate. In the upper surface portion of the base 1 which overlaps the through holes 3 and 3, the recessed portion 6 having the same depth as the thickness of the rectangular substrate 5a of the metal joint 5 is formed.
(The position of the pillar 13 is determined by the presence of this recess,
It is easy to carry out post-construction work), and the recess 6
In addition, the substrate 5a is tightly fitted so as to penetrate the bolt portion 4b in the through hole 7 (this tight fitting effectively acts not only on the external force of compression or tension but also on the horizontal force). Then, the joint metal 5 is placed, and a nut 8 is screwed onto the tip of a bolt portion 4b (anchor bolt 4) projecting from the substrate 5a and tightened to the basic concrete 2.

The metal joint 5 comprises the substrate 5a and the substrate 5a.
The joining plate 5b is provided upright at the center in the finding direction, and the pair of through holes 7 and 7 are provided in the substrate 5a at equal distances from the joining plate 5b on both sides with the joining plate 5b as the center. On the board 5a of the metal fitting 5, the slit 9 provided at the center of the fitting direction is provided with the joining plate 5b of the metal fitting 5.
So that the nut 8 and the tip of the bolt 4 (bolt portion 4b) protruding from the nut 8 are fitted into the through hole-like fitting space 10 provided on both sides with the slit 9 as the center. Then, the spacer 11 is placed, and the column 13 is placed so that the upper portion of the joining plate 5b of the joining metal 5 protruding from the spacer 11 is fitted into the slit 12 provided on the spacer 11 at the center in the finding direction. The column 13 is erected upright, and the through hole 14 provided at a required position of the column 13 is fitted into the through hole 15 provided in the joining plate 5b, and the fixed rod (drift pin in the embodiment) 16 is inserted therein. And joining hardware 5
Are fastened to form the apparatus of the embodiment.

In the figure, 17 is a large pull, and the large pull 17 has a tenon 18 provided on the end face and a tenon 19 provided on the side surface of the base 1.
Assembling by engaging with the
Placing the (substrate 5a) and the pillar 13 on, the Daihiki 17 (tenon 18)
It is designed to prevent lifting from the base 1 (mortise 19).

For assembling the Daihiki (or other base) to the base 1, there is a means for using a joining metal object other than the tenon joining means as in the embodiment.

Although the spacer 11 is made of synthetic resin, it may be made of metal. The open end of the slit 9 of the spacer 11 is expanded so that the joint plate 5b of the metal joint 5 is guided and inserted into the slit 9 and the metal joint 5 is obtained. ) Bonding plate 5b and substrate 5a
This is because it is an "escape" of the welded part with.

The upper end of the joint plate 5b of the joint metal 5 is formed in an arc shape, and the upper end of the slit 12 provided in the pillar 13 so as to match the arc shape is formed in an arc shape.
When the pillar 13 is descended from the upper side with respect to the joining plate 5b (suspended by a crane), the arc shapes of the upper ends (on the joining plate 5b side and the slit 12 side) are aligned with each other and the joining plate 5
"Positioning" of the through hole 15 on the b side and the through hole 14 on the pillar 13 side
This is for facilitating the operation. The circular arc processing on the column 13 side can be applied as it is in the circular saw circular arc shape at the time of pre-cut processing (the circular arc on the joining plate 5b side as well as the circular arc shape on the joining plate 5b) can be applied, so that the time can be shortened. it can.

[0013]

As described above, according to the present invention, since the pillar is assembled to the joint metal fitting assembled to the anchor bolt, the pillar is integrated with the basic concrete projecting the anchor bolt. (Swaying), it is possible to provide a fastening device that is durable against vibration caused by an earthquake or the like.

[Brief description of drawings]

FIG. 1 is a vertical sectional view.

FIG. 2 is a central longitudinal sectional view of FIG.

FIG. 3 is an exploded perspective view of each member.

FIG. 4 is a perspective view of a fastener.

FIG. 5 is a perspective view of a spacer.

[Explanation of symbols]

1 foundation 2 foundation concrete 4 anchor bolts 5 Joining hardware 5a substrate 5b Bonding plate 8 nuts 11 Spacer 13 pillars

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 2E125 AA03 AA18 AA45 AB12 AC23                       AG03 AG04 AG12 AG23 AG38                       BB02 BB09 BB12 BB22 BB36                       BC09 BD01 BE02 BE04 BE07                       BE08 BF06 CA04 CA05 CA09                       CA14 CA79 EA17 EA33 EB02                       EB04 EB08

Claims (2)

[Claims] 1. A base placed on foundation concrete,
The substrate placed on the base of the joining metal article formed by standing the joining plate on the substrate, the anchor bolt projecting on the foundation concrete and tightened to the foundation concrete by a nut screwed to the anchor bolt, A post-base fastening device in which a post erected on the substrate via a spacer engaged with a nut and the joint plate fitted into the post through the spacer are fixed to each other with a fixing rod. 2. The pillar-to-base fastening device according to claim 1, wherein the substrate of the bonded metal article is tightly fitted in the recess formed in the upper surface of the base.