JP2504578B2 - Steel frame construction method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for constructing a steel frame foundation suitable for general houses.

[Conventional technology]

Conventionally, an independent foundation made of concrete and a continuous foundation called a cloth foundation have been applied to the foundation of a general house, and these foundations are constructed as follows, for example. That is, split chestnuts are spread over the base of the house to be built, and concrete is placed on the split chestnuts to form the base. Next, tie the horizontal bar to the vertical bar erected from this base with a binding line,
A formwork is erected on both sides of these reinforcements with a constant width, and concrete is placed in this formwork to form a rising portion. After the concrete has solidified, the formwork is removed to form the housing foundation.

[Problems to be Solved by the Invention]

However, in the above-mentioned conventional foundation, in order to keep the distance between the molds at a predetermined distance in the field, it is necessary to form the frame by using a spacer or a clamper. Since sufficient strength to withstand the placement of concrete is required, it is not a work that anyone can do, but requires workers of various occupations such as formwork carpenter, earthwork, rebar work, etc. Due to the period, the construction requires labor and time.

The inventors of the present invention considered that it is advantageous to use steel as a foundation exposed on the ground as a result of various studies to obtain a housing foundation that can perform a considerable part of construction work by workers of a small number of occupation types and that does not require much time. It was

The present invention has been made based on the above idea, and an object of the present invention is to provide a method for constructing a steel frame foundation, which can be formed mainly by welding work of steel materials after the foundation pile is driven into the soil.

[Means for solving the problem]

In order to achieve the above object, the method for constructing a steel frame foundation of the present invention is to form a soil cement column by injecting cement milk into it while opening a hole perpendicular to the ground, and then forming an uncured soil cement column. A long steel column is inserted along the column from approximately the center of the upper end surface of the column, and the soil cement is cured with the tip of the column protruding from the upper end surface of the column by a predetermined dimension.

Alternatively, while making a hole vertical to the ground, cement milk is injected into the hole to form a soil cement column, and a reinforcing bar is placed in the hole, and then a steel pillar is erected on the upper end surface of the soil cement column. Fix the lid.

[Action]

Since the present invention has a steel frame construction method having the above configuration, the steel frame foundation obtained by the construction method of the present invention is
If they are arranged in the main part of the housing site based on the house design drawing, the house foundation is formed only by welding, using the steel columns protruding above the steel frame foundation.

〔Example〕

FIG. 1 shows an embodiment of a steel frame foundation obtained by the construction method of the present invention, in which reference numeral 1 is a soil cement column. The method for forming this soil cement column (hereinafter referred to as a column) 1 is not particularly limited, but it is usually made by injecting cement milk into the soil 2 while making a hole 2a perpendicular to the ground 2 with an earth auger. When the soil cement is in an uncured state, the H-shaped steel column 3 is inserted from the upper surface of the column, is settled, and is solidified in a state of protruding by a predetermined dimension from the upper surface of the column 1 to form the steel frame foundation 4.

Alternatively, the H-shaped steel columns 3 may be appropriately settled to harden the soil cement, and then fused so that the tips of the protruding portions of the H-shaped steel columns 3 have the same height.

As shown in FIG. 2, the above-mentioned steel frame foundation 4 is arranged in the main part according to the design drawing, the H-shaped steel beam 5 is welded and fixed across the protruding H-shaped steel column tip, and the housing foundation 6 is formed. .

A floor panel 7, a wall panel 8 and the like are attached to the house foundation 6 formed in this way, similarly to a conventional concrete foundation, and a house is constructed.

After arranging the above-mentioned steel frame foundation 4 on the site corresponding to the main part of the house building, the house foundation is made only by a welder, and anchor bolts (not shown) for attaching the floor panel 7 etc. are also attached by welding. And the construction will proceed,
Most of the work can be done by skilled welders and housing assemblers without the need for concrete curing.

FIGS. 3 and 4 show another embodiment of the steel frame foundation obtained by the construction method of the present invention. The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

The soil cement column 11 of the steel frame foundation 4'has a hole 2a.
It is formed by injecting cement milk into the
A reinforcing bar is arranged in 2a, and at the same time, an anchor bolt 12 protruding from the upper surface is inserted. As shown in FIG. 4, an H-shaped steel column 13 having a predetermined length is vertically attached to the upper surface of the column 11 with reinforcing bars, and the anchor bolt 12
A plate-shaped lid 14 having a bolt hole 14a corresponding to the nut 12a is inserted through the bolt hole 14a into the anchor bolt.
Has been fixed by.

The steel frame foundation 4'having such a structure has exactly the same outer shape as that of the above-mentioned steel frame foundation, and if the steel frame foundation 4'is similarly arranged in the main part, the subsequent construction can be efficiently performed by a worker having a small number of jobs.

In addition, reference numeral 15 in the figure is an H-shaped steel column or concrete cast to prevent the lid from directly touching the soil and corroding.

If you show an example of the construction procedure to build the steel frame foundation,
It becomes like (a)-(f) of FIG. That is, first, the fifth
As shown in FIGS. 5A and 5B, while the hole 2a is formed by the earth auger 21, cement milk is injected to form the column 1 as shown in FIGS. 5C, 5D and 5E. .
An H-shaped steel column 3 is inserted into the column 1 so that the tip of the column 1 projects by a predetermined dimension, and the column 1 is solidified by sinking. The steel frame foundation is made by the above-mentioned construction procedure, the H-shaped steel beam 5 is attached to the H-shaped steel column 3 protruding from the column 1 as shown in FIG. 5 (f), and then the floor panel 7 and the wall panel 8 are assembled. .

In the above description, the pillars and beams are H-shaped steels, but the present invention is not limited to this, and steel materials such as angles and U-shapes may be used as long as they have sufficient strength.

〔The invention's effect〕

As described above, according to the method of constructing a steel frame foundation of the present invention, by disposing the steel frame foundation on the ground corresponding to the main part of the building, the subsequent construction is efficiently performed by the workers of a small number of occupations, and the soil is further used. Since the cement column is deeply buried in the ground, it has sufficient strength as a foundation for general houses, does not require the use of formwork, root cutting, and does not require curing.Compared with the conventional concrete foundation construction method. Therefore, the economic effect in construction is extremely large, such as the simplicity of construction.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a steel frame foundation obtained by the method for constructing a steel frame foundation of the present invention, and FIG. Fig. 3 shows a house foundation prepared according to the present invention, and Fig. 3 shows another embodiment of the steel frame foundation obtained by the method for constructing a steel frame foundation according to the present invention. Fig. 1 equivalent diagram and Fig. 4 show lids to which H-shaped steel columns are attached. A plan view of the body, FIGS. 5 (a), (b), (c), (d),
(E), (f) is a figure which shows an example of the construction procedure of a steel frame foundation. 1 …… Soil cement column (column) 2 …… Ground,
2a ... Hole, 3 ... H-shaped steel column, 4,4 ... Steel foundation, 5 ...
H-shaped steel beam, 6 ... Housing foundation, 7 ... Floor panel, 8 ... Wall panel, 11 ... Reinforcing soil cement column, 12
…… Anchor bolt, 12a …… Nut, 13 …… H-shaped steel pillar, 14 …… Lid body, 14a …… Bolt hole, 21 …… Earth auger.

Claims (2)

(57) [Claims] 1. A soil cement column is formed by injecting cement milk into a hole perpendicular to the ground,
Then, from approximately the center of the upper surface of the uncured soil cement column, insert a long steel column along the column and cure the soil cement with the tip protruding from the upper end surface of the column by a predetermined dimension. Construction method of the characteristic steel frame foundation. 2. A hole vertical to the ground is formed, cement milk is injected into the hole to form a soil cement column, and a reinforcing bar is arranged in the hole. Then, a steel pillar is provided on the upper end surface of the soil cement column. A method for constructing a steel-framed foundation, characterized in that a lid that stands upright is fixed.