JP3597925B2 - Wooden house foundation - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to the foundation of a wooden house constructed on flat ground and sloping land.
[0002]
[Prior art]
When building a wooden house on a flat ground, a cloth foundation is generally used. The cloth foundation is a concrete structure continuously provided along a lower portion of a main frame such as an outer periphery of a building or a partition. In the foundation work for producing this concrete structure, it is necessary to sequentially perform the operations of assembling a mold serving as a mold on a base concrete, arranging a reinforcing bar, pouring concrete, curing and removing the mold, and finishing a mortar in a mortar.
[0003]
In addition, as shown in FIG. 8, an independent foundation 41 is used as a foundation for constructing a wooden house such as a villa or a bungalow on a slope. The independent foundation is used by embedding a lower part thereof in a base concrete, and has a fitting hole 42 at an upper part for inserting a lower part of a column hanging down from a base.
[0004]
[Problems to be solved by the invention]
However, in the case of flat terrain, it is necessary to assemble the formwork so that it is strong enough to withstand the pressure during concrete pouring and does not get out of order, and it is necessary to form ventilation holes etc. Therefore, it was a task that required a skill level that could not be managed by anyone other than a specialized engineer. In addition, the foundation work requires time and labor for assembling and removing the formwork, and also requires a curing period until the concrete is hardened, so that the construction work of the house is delayed by that much.
[0005]
On the other hand, in the case of sloping land, even if the independent foundation is firmly fixed to the base concrete side, it is necessary to set the length of the column supporting the base in accordance with the inclination of the land, so the house becomes longer as the column becomes longer. Will become unstable and require reinforcement members such as swaying and bracing, and in the event of an earthquake, you may experience a shaking that is worse than the actual shaking, or the columns may come off and the house may collapse. Was.
[0006]
The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wooden house which is extremely easy to construct on flat terrain, requires a short construction period, and has excellent earthquake resistance on sloping terrain. It is to provide the basis of.
[0007]
[Means for Solving the Problems]
The foundation of a wooden house according to the present invention is formed by stacking a plurality of cross blocks, and a plurality of anchor bolts projecting from base concrete are inserted into holes formed in each cross block, and anchor bolts for the foundation are provided. To fix the base firmly to the base concrete by fastening the nuts to the base concrete, insert the tip of the anchor bolt for the base into the through hole of the base, and fasten the nut to the anchor bolt for the base respectively. It is a feature.
[0008]
Further, the cross block may be composed of two members, a vertical member and a horizontal member, and may be formed by partially joining the vertical and horizontal members in a state of intersecting.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
As shown in FIGS. 1 and 2, a first embodiment of a wooden house foundation 1 according to the present invention is formed by stacking a plurality of cross blocks 2, 2,. It is placed and fixed on the base concrete 3 to support an appropriate portion of the base 4 of the wooden house, for example, a corner or an intermediate portion.
[0010]
The base concrete 3 has a cross shape, and is formed in a state in which the direction perpendicular to the cross direction coincides with the girder direction of the house and the beam girder direction. A number of anchor bolts 5,..., 6,... Protrude upward from the base concrete 3 along the direction perpendicular to the base concrete 3. These anchor bolts 5 include foundation bolts 5 for fixing the foundation 1 to the base concrete 3 and foundation bolts 6 for fixing the base 4 of the house to the foundation 1. .
[0011]
The cruciform block 2 is a concrete molded product used by matching the direction orthogonal to the girder direction of the house and the girder direction of the house, and is located at the positions of the anchor bolts 5,. Holes 7,... Are formed at the joined portions. Each cross block 2 has a similar shape having a different size. The cross blocks 2 are stacked on the base concrete 3 in order from the largest one with the holes 7,. By tightening the nuts 8 to the bolts 5,..., The bases 1 are firmly fixed to the base concrete 3 and form the flared form base 1 having a stepped step.
[0012]
In the foundation 1 fixed to the base concrete 3, the direction in which the cross blocks 2 are orthogonal to the direction of the girder of the house and the direction of the beam girder coincide with each other. Are protruding (two in FIG. 1). The protruding portions are inserted into through holes 9,... Formed in the base 4 of the house, and the nuts 8 are tightened, so that the base 4 is placed on almost the entire surface of the uppermost cross block 2 in a stable state. It is fixed with.
[0013]
FIG. 3 shows a second embodiment, in which the cross block 2 is composed of two parts, that is, a vertical member 11 and a horizontal member 12, and the vertical and horizontal members 11, 12 are assembled into a cross by partial joining. The weight of each of the vertical and horizontal members 11 and 12 is reduced to half of that of the cross block 2 so that carrying and assembling can be performed without any trouble.
[0014]
That is, a concave portion 13 is formed on the rear surface side of the intermediate portion of the vertical member 11 along a direction orthogonal to the longitudinal direction, while the front surface side of the intermediate portion of the horizontal member 12 is similarly formed. Thus, a concave portion 14 is formed. By joining the two concave portions 13 and 14, the two members 11 and 12 are joined in a cross shape with their material surfaces being flat.
[0015]
FIG. 4 shows a third embodiment, characterized in that wood, such as a thinned wood material or a bent material, having a low utility value, is used as the material of the vertical and horizontal members 11 and 12. It is most suitable to apply a waterproof and insect repellent paint (for example, creosote, xylamon) to the wood, as well as to a portion which is hard to perish away from the ground, that is, an upper portion of the foundation 1.
[0016]
The foundation 1 of a wooden house according to the invention can be used on sloping terrain, as shown in FIGS. 5 and 6, or can be used on flat terrain, as shown in FIG. In addition, as shown in FIG. 7, when the stepped base 1 is attached to the lower side of the entrance or the terrace, etc., the step board 21 is attached to the step portion of the base 1 and used as a stair. You can also.
[0017]
The foundation of the wooden house according to the present invention is not limited to the above embodiment. For example, the foundation 1 of a wooden house may be formed by combining a cross block 2 integrally formed with a cross block 2 formed of both vertical and horizontal members 11 and 12. In addition, the foundation 1 of the wooden house is not limited to the divergent form as shown in FIGS. 1 to 5 and, as shown in FIG. It may be formed in a uniform columnar form, or may be formed in a constricted form in the middle using a plurality of cross blocks 2,... Having similar shapes. Further, the base concrete 3 is not limited to a cross shape, but may have other shapes such as a square shape, as long as the anchor bolts 5,..., 6,. Is also good.
[0018]
【The invention's effect】
In the foundation of the wooden house according to the present invention, a base concrete having a plurality of anchor bolts protruded is formed at an appropriate position on the concrete, and a plurality of cross blocks are formed on the base concrete, and the anchor bolts are passed through holes. The foundation work is completed by stacking in the state, tightening the nuts to the anchor bolts for the foundation, and fixing multiple cross blocks to the base concrete, so this construction work consists of two types of work, stacking and nut tightening It is an extremely simple operation, and when assembling a house, it is possible to attach the base to the foundation by inserting the tip of the anchor bolt for the base into the through hole of the base and tightening the nut as in the case of the conventional house. it can.
[0019]
When this foundation is used for a wooden house built on flat ground, the construction work of the foundation is extremely simple as described above, so that it is not necessary to assemble a troublesome mold frame as in the past, and as a result, a specialized engineer It will be possible to do foundation work even if it is not. In addition, since the foundation can be formed by the simple work of carrying a cross block molded at a factory etc. to the site and assembling it, the complicated assembly and removal, etc. necessary for the conventional mold construction work and the concrete poured in have been done. Since a hardening curing period is not required, the construction period of the foundation work is greatly reduced, and as a result, the house can be constructed without delay after the foundation work. In addition, since the foundation is provided at an appropriate place on the base, the air permeability under the floor is significantly improved as compared with the conventional cloth foundation having a ventilation opening.
[0020]
When the foundation is used for a wooden house constructed on a slope, the foundation is fixed using a stable foundation that is firmly fixed to the base concrete, and the area larger than the columns supporting the conventional foundation, that is, The synergistic effect of supporting the base with the surface part of the cross blocks stacked on the top tier significantly improves the seismic resistance of the house, and even if an earthquake occurs, the pillars will be detached as usual The house will not collapse.
[0021]
Further, the foundation of the wooden house according to the present invention is effective when expanding a house because the construction work is easy as described above.
[0022]
When the cross block is formed by partially joining the vertical and horizontal members, the weight of each of the vertical and horizontal members is half the weight of the cross block, so that the carrying and stacking work can be performed comfortably.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a state in which a base is fixed to a foundation of a wooden house according to the present invention.
FIG. 2 is a perspective view showing a first embodiment of a foundation of a wooden house.
FIG. 3 is a perspective view showing a second embodiment of the foundation of the wooden house.
FIG. 4 is a perspective view showing a third embodiment of the foundation of a wooden house.
FIG. 5 is a front view showing a state in which the foundation of a wooden house according to the present invention is used on a slope.
FIG. 6 is a front view showing a state in which the foundation of a wooden house according to the present invention is used on a slope.
FIG. 7 is a front view showing a state where the foundation of the wooden house according to the present invention is used on a flat ground.
FIG. 8 is a perspective view showing a conventional independent foundation.
[Explanation of symbols]
2 Cross block 3 Base concrete 4 Base 5 Anchor bolt for foundation (Bolt for foundation)
6 Anchor bolt for base (Bolt for base)
7 Hole 8 Nut 9 Through Hole 11 Vertical Member 12 Horizontal Member

Claims (2)

A plurality of cross blocks (2, 2,...) Are stacked and configured, and a plurality of anchors projecting from the base concrete (3) into the holes (7,...) Formed in each cross block (2). The bolts (5,..., 6,...) Are inserted, and the nuts (8) are fastened to the anchor bolts (5,. The base (4) is inserted into the through holes (9, ...) of the base (4) by fastening the nuts (8) to the base anchor bolts (6, ...). The base of a wooden house, which is fixed. The cross block (2) is composed of two members, a vertical member (11) and a horizontal member (12), and is formed by partially joining the vertical and horizontal members (11, 12) in an intersecting state. The foundation of a wooden house according to claim 1, characterized in that:

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