JPH08333806A - Collapse preventive structure of wooden building - Google Patents

Abstract

PURPOSE: To prevent the removal of a building from a sill and a post resultant from the floating up of the post and a wall girder or a beam. CONSTITUTION: This invention relates to a collapse preventive structure of a wooden structure which prevents the removal of a post 6 from a ground sill 3 or the removal of a beam or a wall girder 7 from the post 6 of a wooden structure accompanied by a strong earthquake and a strong wind. Connection hardware 13 is interposed between a head slack of a foundation bolt 2 fixed with foundation concrete 2, thereby fastening the beam or the wall girder 7 with the foundation bolt 2. This construction makes it possible to prevent the wooden structure from being collapsed attributable to the removal of the post 6 from the ground sill 3 and the removal of the wall girder 7 and the beam from the post 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for preventing collapse of a wooden structure which prevents the structure from collapsing due to a strong wind, an earthquake or the like.

[0002]

2. Description of the Related Art Japan is a country with many typhoons and earthquakes, and the Building Standard Law stipulates that all structures to be constructed must be wind-resistant structures and earthquake-resistant structures. In order to prevent a wooden structure from collapsing due to wind pressure or seismic force caused by a typhoon or whirlwind, it is generally effective to appropriately arrange braces, retaining columns or effective bearing walls. As a method of preventing the collapse of a wooden structure, a wrench, a sill base, and a box metal object are used to prevent the building from twisting. When it comes to the fall of a building, it's braced and unbridled. For the floating of the building, bolting to the foundation, box metalwork. For skidding of buildings, construction methods such as fixing with a hoso are used.

In the wind resistant structure, for a small wooden building, the required length (wall ratio) of the bearing wall including braces is largely removed, and the found area of the building is based on the standard braces. It is prescribed as shown in Table 1 according to the above. As for the earthquake-resistant structure, as in the case of the wind-resistant structure, in the case of a small-scale wooden building, the length of the wall including the braces corresponding to the scale of the floor area is specified as shown in Table 2.

[0004]

[Table 1]

[0005]

[Table 2]

Also, in a small-scale wooden building, as shown in FIG. 4, the dowels of the pillars 44 are inserted into the dowel holes of the foundation 43 fixed on the foundation concrete 41 by the foundation bolts 42 embedded in the foundation concrete 41, The I-shaped or T-shaped box metal member 45 is fixed to the base 43 and the pillar 44 with a nail 46, and the pillar 4
4 is prevented from rising. Similarly, the connection between the laid 47 or beam on the column 44 and the column 44 is performed by fitting the mortise hole of the similarly laid 47 or beam to the mortise of the column 44 and laying the I-shaped or T-shaped box hardware 45. It is general to prevent the floating of the beam 47 or beam laid on the beam 47 and the beam 44 by the nails 46, or to prevent the beam 47 from being lifted up by fixing with the battledore bolts. In addition,
48 is bracing.

[0007]

SUMMARY OF THE INVENTION In the above-described structure for preventing the floating of pillars, pavers or beams, the pegs of the box metal will fall out when strong force is applied, and the pillars or pavers or beams can be removed from the base or pillars. It breaks down and collapses. Particularly in the case of a direct earthquake, the collapse of wooden structures due to the above causes was confirmed in the Great Hanshin-Awaji Earthquake (Hyogoken Nanbu Earthquake) in January 1995.

The object of the present invention is to eliminate the drawbacks of the conventional method in which the metal box is nailed to the foundation and the pillar to prevent the pillar and the floor or the beam from rising. Another object of the present invention is to provide a structure for preventing collapse of a wooden structure which can be detached from a pillar and can be easily attached at low cost.

[0009]

Means for Solving the Problems The present inventors have intensively studied to achieve the above object. As a result, the foundation bolt for fixing the foundation on the foundation concrete has a head extra length when the foundation is fixed.Therefore, the head extra length of the foundation bolt is utilized, and the beam or spread is attached by the connecting hardware. The present invention has been reached by the conclusion that it is possible to prevent the pillar and the bedding or the beam from separating from the base and the pillar by fastening and fixing to the foundation bolt.

That is, the present invention is a collapse prevention structure for detaching a pillar from a base of a wooden structure and detachment of a beam or a liner from the pillar due to strong earthquake and strong wind, and a foundation bolt having the foundation fixed to a foundation concrete. A structure for preventing collapse of a wooden building, characterized in that a connecting metal object is interposed between the head extra length portion and the beam or spread, and the beam or spread is fastened and fixed to a foundation bolt.

Further, the present invention is a collapse prevention structure by detachment of a pillar from the base of a wooden structure and detachment of a beam or a liner from the pillar due to strong earthquake and strong wind, and the foundation is fixed to a foundation concrete. In a wooden structure characterized by connecting a thread or a thread to the extra length of the head of the bolt and a connecting hardware having a male thread on the head that penetrates the beam or the bed, the beam or the bed is fastened and fixed to the foundation bolt. It has a collapse prevention structure.

[0012]

In the present invention, the base bolt is fixed to the foundation concrete, and the head extra length of the foundation bolt and the beam or the pad are laid and the beam or the pad is fastened and fixed to the bolt. By doing so, the beam or laid on the top of the pillar is fastened and fixed to the foundation bolt embedded in the foundation concrete through the connecting hardware. For this reason, the pillar is located between the upper beam fastened and fixed to the foundation bolt or the floor and the foundation, and even if a strong force acts in the vertical direction, the pillar will be affected by the resistance of the foundation bolt and the connecting hardware. It is possible to prevent the detachment of the pillar from the base and the detachment of the beam or the spread from the pillar, and to prevent the collapse of the wooden structure due to the detachment of the pillar from the foundation and the detachment of the stick or the spread from the pillar.

Further, in the present invention, a connecting screw having a female screw threaded to a head extra length portion of a foundation bolt having a base fixed to a concrete foundation and a coupling metal article having a male screw thread at a head portion penetrating the beam or sill or By fastening and fixing the mat to the foundation bolt, the connecting hardware can be easily attached to the foundation bolt, and the beam or mat located at the top of the pillar is fastened and fixed to the foundation bolt embedded in the foundation concrete by a simple operation. be able to. For this reason,
The pillar will be located between the upper beam fastened and fixed to the foundation bolt or the floor and the foundation, and even if a strong force acts in the vertical direction, it will be It is possible to prevent the detachment of the wooden structure and the detachment of the beam or the bedding from the column, and to prevent the collapse of the wooden structure due to the detachment of the column from the base and the detachment of the beam or the bedding from the column.

The connecting metal used in the present invention is not particularly limited as long as it can fasten and fix the beam or the spread to the base bolt by utilizing the head extra length of the base bolt. 2. A female thread that is screwed into the extra head portion of the foundation bolt described in 2, and a connecting hardware having a male thread on the head that penetrates through the beam or lay, or a hook is welded to the extra head portion of the foundation bolt, It is recommended to use a wire, a turn puckle, etc., between the hook and the hook of the hook bolt that penetrates the beam or the laid sheet, which does not require much man-hours and cost.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A collapse prevention structure for a wooden building according to the present invention will be described below with reference to FIGS. FIG. 1 is a side view showing an example of a collapse prevention structure for a wooden structure of the present invention, FIG. 2 is a plan view showing an example of a collapse prevention structure for a wooden structure of the present invention, and FIG. 3 is a connecting metal piece used in the present invention. It is a side view which shows an example. 1 to 3, 1 is a foundation concrete of a wooden building, 2 is a foundation bolt whose lower part is embedded in the foundation concrete 1, and 3 is fixed on the foundation concrete 1 with a foundation bolt 2, a washer 4 and a nut 5. The base, 6 is a pillar in which a pillar mortise is inserted into the mortise hole of the pedestal 3 and is erected, 7 is a laying material in which the mortise hole is fitted to the pillar mortice at the top of the pillar 6, and 8 is interposed between the pillar 6 and the pillar 6. Braces, 9 is a whirling fixed to the corners of the laid 7 with bolts 10, and 11 is a box metal object for preventing the lifting of the pillar 6 from the base 3 and the lifting of the laid 7 from the pillar 6. It is fixed to the base 3 and the pillar 6 as well as to the pillar 6 and the bed 7 by the nails 12.

Reference numeral 13 is a connecting hardware having an internal thread 14 screwed into the extra head length of the foundation bolt 2 and an external thread 15 penetrating the laid 7 to form a female thread 14 in the extra head length of the foundation bolt 2.
Male screw 15 that is screwed in and connected to penetrate the spread 7
A washer 16 and a nut 17 are screwed in and the spread 7 is fastened and fixed to the foundation bolt 2 so as to prevent the pillar 6 from being separated from the base 3 and from being separated from the pillar 6.

Due to the above-mentioned structure, the pillar 6
Will be located between the upper mat 7 fastened and fixed to the foundation bolt 2 and the base 3, and even if a strong force acts in the vertical direction, the resistance of the foundation bolt 2 and the connecting hardware 13 will cause the pillar 6 to move. It is possible to prevent the detachment of the paved 7 from the base 3 and the detachment of the laid 7 from the pillar 6, and prevent the collapse of the wooden structure due to the detachment of the pillar 6 from the pedestal 3 and the detached of the laid 7 from the pillar 6. it can. In addition, the connection hardware 13 is
Since it can be connected to the foundation bolt 2 simply by screwing the female screw 14 into the head length of the foundation bolt 2, it requires almost no man-hours, and the female screw 14 is formed on one end of the rebar and the male screw 15 is formed on the other end. Therefore, it can be manufactured at low cost. It is considered that the outer diameter of about 10 mm is sufficient as the size of the reinforcing bar.

[0018]

As described above, the collapse prevention structure for a wooden building of the present invention is inexpensive and requires almost no man-hours, and is caused by the detachment of the pillar from the base and the detachment of the lined or beam from the pillar. It is possible to prevent the collapse of the wooden structure.

[Brief description of drawings]

FIG. 1 is a side view showing an example of a collapse prevention structure for a wooden building of the present invention.

FIG. 2 is a plan view showing an example of a collapse prevention structure for a wooden building of the present invention.

FIG. 3 is a side view showing an example of a connecting metal piece used in the present invention.

4A and 4B show an example of a conventional collapse prevention structure for a wooden building, in which FIG. 4A is a side view and FIG. 4B is a front view.

[Explanation of symbols]

 1,41 Foundation concrete 2,42 Foundation bolts 3,43 Foundation 4,16 Washers 5,17 Nuts 6,44 Pillars 7,47 Laying 8,48 Braces 9 Firing 10 Bolts 11,45 Box hardware 12,46 Nails 13 Connection hardware 14 Female screw 15 Male screw

Claims (2)

[Claims] 1. A collapse prevention structure for detaching a pillar from a base of a wooden structure and detachment of a beam or a spread from the pillar due to strong earthquake or strong wind, and a head of a foundation bolt having the foundation fixed to a foundation concrete. A structure for preventing collapse of a wooden building, characterized in that an interlocking hardware is interposed between the extra length portion and the beam or spread, and the beam or spread is fastened and fixed to a foundation bolt. 2. A collapse prevention structure for detaching a pillar from a base of a wooden structure and detachment of a beam or a liner from the pillar due to strong earthquake or strong wind, and a head of a foundation bolt having the foundation fixed to a foundation concrete. A structure for preventing collapse of a wooden building, characterized in that a connecting metal object having a female screw threaded to the extra length portion and a male screw thread on a head penetrating the beam or the bed is fastened to the foundation bolt by fixing the beam or the bed.