JP2733752B2 - Concrete foundation for building and its construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for constructing a required building by placing concrete on a construction site to form a long continuous concrete wall, mounting and fixing a base material thereon. The present invention relates to a concrete foundation for a building to be used and a construction method thereof.

[0002]

2. Description of the Related Art A concrete foundation for a building having a long continuous concrete wall shape is formed by casting concrete into a foundation placing frame in which concrete forms are opposed to each other at a required interval, and the concrete foundation is formed. A base material is placed and fixed along the longitudinal direction on the upper part of the building, and a required building is constructed on the base material.

[0003]

The above-mentioned conventional concrete foundation has a structure in which the lower surface of the base material is placed and fixed on the continuously continuous upper surface by surface contact, so that the upper surface of the concrete foundation is a flat horizontal surface. It is necessary to be. Therefore, it is indispensable to perform a work of applying mortar and finishing to a flat horizontal surface after placing the concrete, and there is a problem that it takes a considerable amount of time and labor to finish the concrete foundation.

In the conventional concrete foundation, since the upper surface of the foundation and the lower surface of the base material are placed in surface contact with each other, when the base material is made of wood, there is a problem that the base material is easily corroded by contact with concrete having a constant moisture absorption property. In addition to the existing, there is no gap between the base material and the concrete foundation to promote ventilation of the space under the floor of the building, so the ventilation under the floor of the building is poor, and there are cases where forced ventilation equipment etc. under the floor must be provided. is there.

The present invention provides a concrete foundation for buildings which solves the above-mentioned disadvantages of the prior art, and a method for applying the same.

[0006]

According to the present invention, there is provided a concrete foundation for a building in which a base material is placed and fixed on an upper portion of a concrete wall portion having a long continuous wall shape. below the mounting plate to be placed on the upper surface of the wall portion, and projecting the inserted legs to the concrete wall, to a flat surface top and concrete設用
A base material spacer having a resilient contact projection for clamping and setting to a formwork is mounted and identified on the concrete wall at a required interval, and the base material spacer group for mounting a common base material. The upper surface of the spacer is set on the same horizontal plane, and further, the upper surface of the spacer is slightly higher than the upper surface of the concrete of the concrete wall portion, and a foundation material is mounted and fixed on the upper surface of the spacer, ''

[0007] In the construction of a concrete foundation for a building having a long continuous concrete wall shape by placing concrete between concrete forms arranged opposite to each other, after placing the concrete, the concrete is placed on the concrete placing surface. below the mounting plate to location, it has a insertion legs and a flat top surface for insertion into the punching setting concrete, and to between said concrete formwork
The base material spacer group having the elastic contact projection for
The base material spacer group for mounting and disposing at a required interval on the upper surface of the cast concrete, and mounting a common base material.
The upper surface of the spacer is placed on a common horizontal plane by being sandwiched and held by the concrete formwork, and the upper surface of the spacer is set higher than the upper surface of the concrete of the cast concrete. Thereafter, the cast concrete is solidified to solidify the concrete. Remove the formwork and form the concrete foundation for the building. "

That is, according to the concrete foundation for a building and the method for constructing the same according to the present invention, the base material spacer group having the above-mentioned structure is placed on the upper surface of the concrete wall constituting the main part of the concrete foundation for the building. The top surface constitutes a single horizontal plane, the upper surface of the spacer is set to be higher than the upper surface of the concrete wall, and the base material is placed on the base material spacer and the construction method is characterized.

[0009]

The concrete foundation for a building according to the present invention having the above-described structure.
And the construction method is to place and dispose the base material spacer on the upper surface of the concrete cast in the concrete formwork, make the upper surface of the base material spacer a single horizontal plane, Since it is set high, the upper surface of the cast concrete does not need to have a beautiful horizontal surface, and the complicated upper surface finishing work of the concrete foundation can be omitted. Soshi
The base material spacer is secured to the concrete formwork.
It has a holding elastic projection, and the elastic projection
To hold it between the concrete forms
Therefore, level adjustment to make the spacer upper surface group the same horizontal plane
It is extremely easy to maintain the posture after adjusting the level.
There is a certain effect that can be surely done.

[0010] A play space is secured between the base material placed on the upper surface of the base material spacer and the upper surface of the concrete wall, and the play function as a ventilation hole under the building floor.
The base material spacer can carry the load of the base material with high durability by setting the size / material and the arrangement interval, and the insertion leg is inserted and fixed to the concrete wall portion, so that the position shift is caused. There is no risk of dropping or falling off.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description will be given based on embodiments. First, with reference to FIG. 2, an embodiment of a concrete foundation for a building and a base material spacer 1 used in a method of constructing the same according to the present invention will be described. That is, the base material spacer 1 is a square mounting plate 2
And a short piece made of synthetic resin and having an inverted U-shaped cross section composed of side plates 3 hanging down from the left and right side edges of the mounting plate 2 to form a concrete upper surface of a concrete wall 9 of a concrete foundation 8 for a building. 10, and the side plate 3 has a shape that appears on the side of the upper end portion of the concrete wall portion 9. A hole 6 is formed, and an insertion leg 4 is provided on the lower surface of the concrete wall 9 so as to be inserted into the cast concrete. The left and right side edges of the mounting plate 2 are elastically brought into contact with the concrete form 15 which is erected opposite to each other in a construction method to be described later, and are temporarily held by being pinched and held.
And the level at which the upper surface 5 of the mounting plate 2 is present on the same plane.
Adjustment and posture after level adjustment are extremely easy and
An elastic ridge 7 made of rubber, which can be surely formed, is raised.

Then, using this base material spacer 1,
Concrete building foundation 8 according to one embodiment of the present invention shown in FIG.
Is configured. That is, a concrete wall portion 9 protruding from the ground surface 12 is formed as a long continuous concrete wall portion as a main portion, a base material 13 is placed on the upper portion, and a concrete foundation for building 8 on which a required building is constructed is placed. Pillar 14 of building
The base material spacer 1 of FIG. 2 is mounted and fixed on the concrete upper surface 10 of the concrete wall portion 9 at the position where the base material is erected, and the spacer upper surface 5 of the base material spacer 1 is slightly higher than the concrete upper surface 10. (In this example, about 3 mm).

Then, the base material spacer 1 is attached to the insertion leg 4.
Into the concrete wall 9 and fixed.
The spacer upper surfaces 5 of the base material spacers 1 forming a group for mounting the common base material 13 are set to form a single horizontal plane. Then, a required base material 13 is placed and fixed on the spacer upper surface 5 of the base material spacer 1, a required building is constructed thereon, and the lower surface of the base material 13 and the concrete upper surface of the concrete wall portion 9 are formed. 10, a continuous gap 14 between the adjacent base material spacers 1 extends between both sides of the concrete foundation 8.

Next, an embodiment of a method for constructing a concrete foundation for a building according to the present invention will be described with reference to FIG. That is, when the concrete form 15 is erected and the concrete is cast in the space between the concrete form 15 and the concrete foundation 8 for the building of FIG. Immediately after installation, the base material spacer 1 of the embodiment of FIG. 2 is disposed and set at a predetermined position.

[0015] Specifically, the elastic contact projections 7 which are raised on both side edges of the base material spacer 1, and is pressed against the inner side of the concrete form 15 which are opposed, concrete form the foundation member space Sa 1 15 And the insertion leg 4 is inserted into the ready-mixed concrete 16, and the placing plate 2 is placed on the ready-mixed concrete upper surface 17 of the ready-mixed concrete 16. 5 is slightly higher than the ready-mixed concrete upper surface 17 so as to generate a step C, and is set at a predetermined position of the ready-mixed concrete 16.

Then, using a well-known electronic level tool (for example, an electronic level AL-50 / 22 manufactured by Nikon Corporation) or the like to which a laser beam is applied, the spacer of the base material spacer 1 group in the above-mentioned arrangement posture is used. The upper surface 5 is adjusted and set so as to be on the same horizontal plane. Then, after the ready-mixed concrete 16 is solidified, the concrete form 15 is removed, and FIG.
The concrete foundation 8 for a building shown in the embodiment is formed.

The concrete foundation for a building and the method of construction according to the above-described embodiment have the above-mentioned effect, and the complicated "horizontal finishing work by mortar finishing" on the upper surface of the concrete foundation becomes unnecessary. The leveling of the spacer upper surface 5 of the base material spacer 1 placed and scattered on the upper surface can be extremely easily performed by the leveling tool or the like, so that the molding work of the concrete foundation 8 is simplified and streamlined. And since the ventilation hole by the continuous play space 14 can be ensured between the upper surface of the concrete foundation 8 and the base material 13, corrosion of the wooden base material 13 is prevented and ventilation under the building floor is actively promoted. be able to.

It should be noted that the present invention is not limited to the above-described embodiment, and there are changes such as changing the shape of the base material spacer 1 and using a metal base material spacer 1.

[0019]

As described above, the concrete foundation for a building and the method of forming the same according to the present invention improve the formability of the concrete foundation for a building, improve the efficiency, shorten the construction period, and reduce the cost. There are various effects to improve ventilation and prevent corrosion of the wooden base material.

[Brief description of the drawings]

1A and 1B show a concrete foundation for a building according to an embodiment of the present invention, wherein FIG. 1A is a perspective view thereof, and FIG.

FIG. 2 shows a base material spacer used in the embodiment of FIG. 1;
(A) is its plan view, (B) is its central longitudinal sectional view,
(C) is the cross-sectional view

FIG. 3 is an explanatory view of a construction procedure and a construction method of a concrete foundation for a building in FIG. 1 embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base material spacer 2 mounting plate 3 side plate 4 insertion leg 5 spacer upper surface 6 drain hole 7 elastic contact ridge 8 concrete foundation 9 concrete wall 10 concrete upper surface 12 ground surface 13 base material 14 play gap 15 concrete form 16 Ready-mixed concrete 17 Ready-mixed concrete upper surface

Claims (2)

(57) [Claims] 1. A building concrete foundation for mounting and fixing a base material on an upper portion of a concrete wall portion having a long continuous wall shape, wherein a lower portion of a mounting plate mounted on an upper surface of the concrete wall portion is provided. wherein the insertion leg of the concrete wall to protrude, to such a flat surface to the top surface, and concreting
A base material spacer having a resilient contact projection for clamping and setting to a formwork is mounted and fixed on the concrete wall at a required interval, and the base material spacer for mounting a common base material is provided. A concrete structure for a building, wherein the upper surface of the group of spacers is set on the same horizontal plane, the upper surface of the spacer is slightly higher than the upper surface of the concrete of the concrete wall, and a base material is placed and fixed on the upper surface of the spacer. Foundation. 2. Casting concrete between concrete forms arranged opposite to each other, and constructing a concrete foundation for a building having a long continuous concrete wall shape. below the mounting to the mounting plate, it has a insertion legs and a flat top surface for insertion into the punching setting concrete, and to between said concrete formwork
The base material spacer group having the elastic contact projection for
The base material spacer group for mounting and disposing at a required interval on the upper surface of the cast concrete, and mounting a common base material.
The upper surface of the spacer is placed on a common horizontal plane by being sandwiched and held by the concrete formwork, and the upper surface of the spacer is set higher than the upper surface of the concrete of the cast concrete. Thereafter, the cast concrete is solidified to solidify the concrete. A method for constructing a concrete foundation for a building, comprising removing a formwork and forming a concrete foundation for a building.