JP2001303583A - Foundation structure for building and its execution method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foundation structure for a building capable of being executed easily in a short time. SOLUTION: In the foundation structure 1 for a wooden house, an H-section 7 is positioned on top of the flat foundation part 6 of dirt floor concrete 5 of a given thickness and fixed thereto by means of anchor bolts 8 and a wooden sill 9 is positioned and fixed thereon. To execute, the H-section 7 is first placed at a predetermined height and leveled by use of a jack and then reinforcements for the dirt floor concrete 5 are arranged, after which the dirt floor concrete is placed. The structure is easier and quicker to execute than conventional structures that use continuous footing of L- or T-shaped cross section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foundation structure of a building such as a wooden house, and more particularly, to a foundation structure of a building having excellent workability and a method of constructing the same.

[0002]

2. Description of the Related Art The foundation of a house, in particular, the foundation around the outer periphery,
Generally, a reinforced concrete cloth foundation is used.
The cloth foundation is generally a base part with a certain thickness (pressure plate)
And an L-shaped or T-shaped cross-section composed of a rising portion (foundation beam) rising vertically from the upper surface of the base portion with a constant thickness.

[0003]

However, the construction of a foundation made of a reinforced concrete cloth foundation having such a cross-sectional shape requires much labor in any of the concrete construction, reinforcement construction and formwork construction. There is a problem to be solved that takes days.

[0004] For example, in concrete work, it is necessary to perform the installation of the base portion and the installation of the rising portion in two separate steps, which takes days. In addition, processing of the joint portion is required.

[0005] In addition, in the rebar construction, it is necessary to reinforce the opening for the vent and the area around the entrance at the rising part of the foundation, which is more complicated than the rebar arrangement work for the base part and the like, Processing and assembly take time and effort.

[0006] Further, also in the formwork construction, it is necessary to vertically arrange the formwork from both sides at a constant interval at the rising portion of the foundation, which requires much time and effort as compared with the work of installing the formwork of the base portion. It is complicated.

[0007] An object of the present invention is to propose a foundation structure of a building capable of performing foundation work in a short period of time by a simple operation as compared with the related art, and a construction method suitable for the foundation structure.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a flat base made of reinforced concrete having a constant thickness, and a horizontal steel base fixed in a fixed length fixed to the upper surface of the flat base. And a top surface of the steel horizontal member is used as a mounting surface of a base horizontal member or a column member.

Here, the flat foundation can be formed as a part of concrete of a constant thickness which is cast on the ground.

[0010] The steel horizontal member is generally H
Shaped steel can be used.

Further, in the case of a wooden house or the like, the horizontal member for the base and the column member are made of wood having a rectangular cross section.

Further, in order to cover the foundation portion of the outer peripheral surface of the building, it is desirable to attach a cover panel to a side surface of the steel horizontal member facing the outside of the building.

The blindfold panel may have a structure including a panel body plate, a mortar layer applied to the panel surface, and a glass fiber mesh sheet attached to the mortar layer. it can.

[0014] Further, if the blindfold panel is fixed to a hanging bracket which is detachably hung from the steel horizontal member, the mounting work is simplified.

On the other hand, the present invention relates to a method for constructing a foundation structure of a building having the above-mentioned structure. The construction method according to the present invention relates to a method for constructing the steel horizontal member using a height-adjustable supporting member. A steel horizontal member installation step of performing leveling by installing at a predetermined height above, a reinforcing arrangement step of arranging the reinforcing bars and formwork for the flat foundation, and a dirt space for the flat foundation It is characterized by including a concrete placing step of placing concrete, and a step of arranging and fixing the base transverse member or the column member on the upper surface of the steel transverse member.

Here, prior to the concrete placing step, it is preferable to include a panel attaching step of attaching a blindfold panel to a side surface of the steel horizontal member facing the outside of the building.

Next, the present invention relates to a foundation structure of a building, in which a reinforced concrete plate-like foundation having a constant thickness and a steel-made horizontal member having a constant length are framed on the upper surface of the plate-like foundation. Characterized by having a foundation girder frame constructed by arranging and fixing in a shape, and a base horizontal member or a column member standing upright on the upper surface arranged along the upper surface of this girder frame. It is.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an example of a wooden house foundation structure to which the present invention is applied and a construction method thereof will be described with reference to the drawings.

FIG. 1 is a schematic sectional view showing the basic structure of a wooden house in this embodiment. As shown in this figure, in the wooden house substructure 1 of the present embodiment, the ground 2 is cut off and the ground work 3 is performed, and the concrete slab 5 having a constant thickness is cast thereon. Soil concrete 5 is made of reinforced concrete in which upper and lower reinforcing bars 5a and 5b are arranged in a lattice shape, and the end portion functions as a flat base member 6 having a constant thickness.

The flat base portion 6 is arranged in a frame along at least the outer peripheral portion of the house, and a plurality of H-shaped steels 7 are arranged in a frame along the upper surface of the frame.
Each of the shaped steel members 7 is fixed to the upper surface of the base portion by an anchor bolt 8 embedded in the flat base portion 6, and adjacent H-shaped steel members 7 are connected and fixed to each other.

A wooden base 9 having a rectangular cross section is arranged on the upper surface of the foundation beam frame composed of the H-shaped steel members 7 arranged in a frame shape, that is, on the horizontal upper surface 7a of each of the H-shaped steel members 7. The base 9 is fixed to the upper surface of the H-shaped steel 7 by fixing bolts 10 which are vertically welded to the upper surface of the H-shaped steel 7 at regular intervals. A wooden pillar 11 is erected at a predetermined position on the upper surface of the base 9. In some cases, a pillar is directly installed instead of the base 9.

Here, the outer side of the H-shaped steel 7 arranged in a frame shape facing the outside of the wooden house is the upper surface 7 thereof.
From the position a to the position beyond the lower surface, it is covered by a vertically arranged blind panel 12. As shown in FIG. 1B, the blind panel 12 includes a panel body plate 121 having a constant thickness, a mortar layer 122 such as a resin mortar having a constant thickness formed on the surface thereof, Glass fiber mesh sheet 123 pasted together
And a finishing material layer 124 formed on the surface of the mesh sheet 123.

When the finishing material layer 124 is omitted, the mesh sheet 123 is embedded and fixed in the mortar layer 122. Further, the panel body plate may be a steel plate, a synthetic resin plate, or may be formed from another material.

In this embodiment, the blind fitting panel 12 is attached to a hanging bracket 13 which is detachably mounted on the H-shaped steel 7.
Are fixed by welding or the like. The hanging bracket 13 is
A horizontal portion 131 riding on the upper surface 7a of the H-shaped steel 7, a hook portion 132 bent downward at a right angle from one end of the horizontal portion 131, and a panel bent downward at a right angle from the other end of the horizontal portion 131 It is formed from the fixed portion 133, and is formed by bending both end portions of one rectangular metal plate.

Next, with reference to FIG. 2 to FIG. 4, a construction procedure of the wooden house foundation structure 1 of this embodiment will be described. First, as shown in FIG. 2 (a), after cutting the ground 2, ground work is performed, and thereafter, the H-shaped steel 7 is
Is set so that it is leveled at a predetermined height position.

As shown in FIG. 2B, the jack fitting 21 has a nut portion 21 having a base 211 attached to a lower end thereof.
2, a bolt portion 213 having a lower end screwed into the nut portion 212, and a support plate 214 rotatably attached to the upper end of the bolt portion 213. Hex nut 215 for turning 213 is welded. By turning the nut 215, the height of the supported H-beam 7 can be adjusted.

Thereafter, the upper and lower muscles 5a, 5b
And the anchor bolts 8 for fixing the H-section steel are also arranged at regular intervals. Also, formwork is performed, and a formwork 22 such as a concrete panel is arranged.

After the rebar arrangement work is completed, as shown in FIG. 3, the blindfold panel 12 to which the hanging bracket 13 is attached is vertically attached to the H-shaped steel 7. Since the hanging brackets 13 are fixed to the blindfold panel 12 at regular intervals by an adhesive, a screw, or the like, the hanging brackets 13 are merely suspended from the H-shaped steel 7 and the blindfold panel 12 is moved. Can be attached.

After that, as shown in FIG. After hardening concrete, form 2
Remove 2. The base fixing bolts 10 are previously welded to the upper surface 7a of the H-section steel 7 at regular intervals.

Next, as shown in FIG. 1, embankment 2a is carried out about 30 to 50 mm from below. After the foundation is completed in this way, the base fixing bolt 10
The base 9 is attached to the upper surface 7a of the section steel 7, and the frame of the wooden house is built on the base.

[0031]

As described above, in the foundation structure of a building according to the present invention, a steel horizontal member is mounted on a flat base having a constant thickness, and the upper surface is used as a mounting surface for a horizontal member for a base. It is a pillar installation surface. Therefore, the foundation portion can be constructed extremely simply and in a short time as compared with the case where the conventional L-type or T-type cloth foundation is constructed.

Further, according to the present invention, since the hanging bracket is attached to the steel horizontal member and the blindfold panel is attached thereto, the blindfolding of the foundation around the building can be easily performed.

Furthermore, in the construction method of the present invention, the steel horizontal member is first placed using a jack or the like, and then the foundation is reinforced and the concrete is poured into the concrete. The construction period can be greatly reduced and the construction work can be simplified as compared with the case where the steel horizontal member is installed after the hardening of the steel member is completed.

[Brief description of the drawings]

FIG. 1 (a) is a schematic cross-sectional view showing a basic structure of a wooden house to which the present invention is applied, and FIG. 1 (b) is an explanatory view showing a portion of a blind panel.

FIG. 2A is an explanatory view showing a construction procedure of a foundation portion of FIG. 1, and FIG. 2B is an explanatory view showing a jack fitting.

FIG. 3 is an explanatory diagram showing a construction procedure of a foundation portion of FIG. 1;

FIG. 4 is an explanatory view showing a construction procedure of a foundation portion of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wooden house basic structure 2 Ground 3 Groundwork 5 Soil concrete 5a, 5b Reinforcement 6 Flat foundation concrete 7 H-section steel 7a Upper surface 8 Anchor bolt 9 Wooden base 10 Fixing bolt 11 Column 12 Blind panel 13 Hanging fitting 21 Jack fitting 22 Formwork

Continued on the front page (72) Inventor Kazuo Kubota 4-53-3 Kitahama, Chuo-ku, Osaka-shi, Osaka F-term in Sumitomo Metal Industries, Ltd. 2D046 AA13 AA14 BA00 2E125 AA18 AB01 AB11 AC15 AG02 AG12 BA02 BA22 BB08 BB22 BD01 BF04 CA04

Claims (11)

[Claims] 1. A reinforced concrete flat base having a constant thickness and a steel horizontal member fixed to an upper surface of the flat base, the upper surface of the steel horizontal member being a base. Basic structure of a building characterized by being used as an installation surface for horizontal members or pillars. 2. The building according to claim 1, further comprising a base horizontal member fixed along an upper surface of the steel horizontal member or a column member standing upright on the upper surface. Foundation structure. 3. The foundation structure of a building according to claim 1, wherein the flat foundation is formed as a part of concrete of a constant thickness between the soils cast on the ground. 4. The foundation structure of a building according to claim 1, wherein the steel transverse member is an H-shaped steel. 5. The basic structure of a building according to claim 1, wherein the horizontal member or column for the base is made of wood or steel having a rectangular cross section. 6. The building according to claim 1, wherein a blind panel is attached to a side surface of the steel horizontal member facing the outside of the building. Foundation structure. 7. The panel according to claim 5, wherein the blindfold panel includes a panel main body plate, a mortar layer applied to a surface of the panel main body plate, and a glass fiber mesh sheet attached to the mortar layer. The basic structure of a building that is characterized by: 8. The basic structure of a building according to claim 6, wherein the blindfold panel is fixed to a hanging bracket detachably suspended from the steel horizontal member. . 9. The method for constructing a foundation structure of a building according to claim 1, wherein the steel horizontal member is placed on a ground at a predetermined height by using a height-adjustable support member. A steel horizontal member installation step of setting a level and setting a level, a reinforcing arrangement step of arranging the reinforcing bar and the formwork for the flat foundation, and a concrete casting for placing the earth concrete for the flat foundation. A method for constructing a foundation structure of a building, comprising: a step of arranging and fixing the base horizontal member or the column member on the upper surface of the steel horizontal member. 10. The panel according to claim 9, further comprising, prior to the concrete placing step, a panel attaching step of attaching a blind panel to a side surface of the steel transverse member facing the outside of the building. Construction method of foundation structure of building. 11. A reinforced concrete flat base having a constant thickness, and a base beam frame formed by arranging and fixing a fixed-length steel transverse member on the upper surface of the flat base in a frame shape. And a foundation horizontal member or a pillar standing on the upper surface of the foundation beam frame.