JPH11323958A - Execution method of building and concrete product used therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an execution method of a building capable of constructing the building in a simple and short-term process without requiring a professional technique by using precast concrete products. SOLUTION: In respectively connecting precast concrete products 1, 21, the precast concrete products are joined by inserting joiners J into respective engaging grooves 5, 5 of the precast concrete products 1, 21. After arranging plural through holes 3 in the lower side surface of the precast concrete product 1, the precast concrete product 1 is installed in a foundation hole 7 dug in the ground surface, and after levelling out after inserting reinforcements 6 into the through holes 3, concrete 11 is placed, hardened and fixed in the foundation hole 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a gate post, a retaining wall, a fence,
The present invention relates to a method of constructing a building such as a flower bed and a concrete product used for construction of the method.

[0002]

2. Description of the Related Art Conventionally, buildings such as gate posts, retaining walls, walls, flower beds and the like (hereinafter referred to as buildings) are often constructed by stacking or lining up concrete blocks.

On the other hand, precast concrete products are constructed on site using heavy equipment such as cranes, but it takes a long time to stack them. After completion, it takes time to apply tiles or granite to the surface makeup, and the foundation is constructed by a civil engineer. Is a block work, a tile is a tile work, and a stone is a mason.

Further, in the conventional method of stacking small blocks, there is a risk of collapse during an earthquake and causing a secondary disaster.

[0005] For this reason, there is a method in which a precast concrete product is manufactured in a factory in advance, and the precast concrete product is transported to a construction site and is constructed using a heavy machine such as a crane.

[0006]

However, the method of transporting the precast concrete product to the construction site and using a heavy machine such as a crane for the construction uses high freight cost and heavy machine cost.

[0007] Further, there are many places where heavy equipment such as cranes cannot be used due to the small space.

There are many problems such as the site dimensional accuracy at the site not being as shown in the drawing and the site must be processed. However, since the thickness of the plate is large, it is difficult to cut and the cost is high. Unsuitable for small sites and rarely used.

In the method of stacking using concrete blocks, the mortar kneaded one by one into a narrow space by inserting precast concrete product support legs is time-consuming and labor-intensive, and only professionals can perform construction. It was also a cause.

In this industry where the age of craftsmen is aging and there is a shortage of successors, it has been desired to develop a construction method that is lightweight and can be constructed easily by a short work period, beautifully and at a low cost even by a non-professional person by hand.

It is an object of the present invention to simplify the construction of a foundation, to set a minimum of columns and hardware, and to unitize a panel of weight and shape that can be carried by hand with a lightweight and strong material by factory production. The construction of gate posts, retaining walls, fences, flower beds, etc. can be done easily and inexpensively in a short period of time, even if you are not a professional at the construction site by using a completely dry construction method for fence installation. It is an object of the present invention to provide a method and a building which is useful for rainwater effective use and disaster countermeasures by installing a water storage tank in a space generated in construction of the building.

[0012]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is to provide a precast concrete product such as a retaining wall, a fence, a flowerbed or the like in which both ends are made of synthetic resin or metal. Are arranging a plurality of products in which molding materials having T-shaped, semicircular and triangular shaped engaging grooves are embedded in a foundation hole at a construction site in parallel, and inserting a joiner into these engaging grooves, After the precast concrete product is integrated, the precast concrete product is synthesized, and a plurality of through holes are provided in the lower side surface of the lower side surface of the precast concrete product so as to communicate with both side surfaces. A construction method is employed in which concrete is poured into the foundation hole, hardened, and fixed.

According to a second aspect of the present invention, a precast concrete product such as a retaining wall, a fence, a flower bed or the like has engaging grooves of a T-shaped, semicircular or triangular cross-section made of synthetic resin or metal at both ends. A plurality of products in which the molded material is embedded are arranged in parallel in the foundation holes at the construction site, and H-shaped or T-shaped
A mold and an X-type joiner are inserted and two or more opposing precast concrete products are integrated to give a composite, and a reinforcing steel for internal structure is connected to a part or both sides of a lower portion of the precast product. The insert nut is embedded, and at the time of construction, a round bar threaded to one side is screwed into this insert nut and fixed, and a horizontal reinforcing bar is passed over the round bar and bundled, and then concrete is poured into the concrete product. The construction method of fixing the slab is adopted.

According to a third aspect of the present invention, there is provided a product in which a molding material having a T-shaped, semicircular or triangular shaped cross-sectional shape manufactured by a synthetic resin or metal at both ends is embedded. The structure adopts a precast concrete product in which insert nuts connected to the internal structural reinforcing bars are embedded on both sides.

According to a fourth aspect of the present invention, two or more precasts in which a molding material having a T-shaped, semicircular, or triangular-shaped engaging groove made of synthetic resin or metal is embedded in an engaging precast product. The construction method is adopted.

According to a fifth aspect of the present invention, there is provided a joining hardware at a lower portion,
It adopts a precast product configuration in which T-shaped, semicircular, and triangular grooves are embedded on both sides with a molding material made of synthetic resin or metal.

The invention according to claim 6 employs a configuration in which the cross-sectional shape of the joiner is I-shaped, T-shaped, work-shaped, U-shaped, and ten-shaped.

The invention according to claim 7 employs a structure in which a part of the joiner is rotatable.

The invention according to claim 8 employs a configuration in which a part of the joiner is extendable and contractible.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 shows a precast concrete product 1.
A plurality of through holes 3 communicating with both sides are provided on the lower side surface of the concrete body 2 formed in a rectangular shape, and a decorative material 4 such as a tile, granite, or marble is stuck on both sides except the lower portion. It has a worn structure.

This precast concrete product 1
It has a shape and size according to the building to be built, for example, it is a long prism up and down for gate pillars, and it is formed horizontally long as shown in the case of retaining walls, fences, flower beds .

In the case of a precast concrete product 1 which is used side by side like a retaining wall, a fence or a flower bed, for example, the positions of both ends of the upper surface are joined by joint means 5 for connecting adjacent products. To do it.

The joint means 5 is formed by embedding a molding material having a T-shaped engaging groove having a cross-sectional shape made of synthetic resin or metal in both ends of the precast concrete product 1 in FIG. Figure 3 shows the T-shaped engagement groove
The adjacent concrete products 1 and 1 are joined as described above, and an H-shaped joiner is inserted into the two T-shaped engagement grooves to engage and connect these two concrete products.

Next, a method of constructing a building using the precast concrete product 1 manufactured in advance at a factory will be described with reference to FIG.

First, a precast concrete product 1
And a reinforcing bar 6 that can pass through the through hole 3 of the precast concrete product, and the width at which the precast concrete product 1 with the reinforcing bar 6 passed through the through hole fits on the ground where the building is to be constructed. The foundation hole 7 of the required depth and the required length is excavated, and the bottom surface of the foundation hole 7 is compacted by quarrying, or a concrete plate or discarded concrete 8 laid thereon is applied. Lay concrete slab 9.

After leveling the base concrete plate 9, the precast concrete product 1 is placed on the base plate 9, and the reinforcing bar 6 is passed through the plurality of through holes 3 of the precast concrete product 1.

Further, a horizontal reinforcing bar 10 is placed above the reinforcing bar 6.
And the reinforcing bars 6 are bound together. When a plurality of precast concrete products 1 are arranged in a horizontal direction, the precast concrete products 1 are connected to each other by a long horizontal reinforcing bar 10.

After fine adjustment of the inclination and level of the precast concrete product 1, concrete 11 is poured into the space between the foundation hole 7 and the precast concrete product 1 and hardened.

As described above, the precast concrete product 1 is erected directly in the foundation hole 7 and the concrete 11 is poured, so that the labor for assembling and dismantling the foundation formwork or the labor for installing the foundation blocks are reduced. Since it is only necessary to perform the leveling operation once, it is possible to reduce the construction time and cost.

Further, the precast concrete product 1 is integral with the portion buried in the ground, and further has a lower through hole 3.
Since the reinforcing bar 6 passed through the hole serves as an anchor for the concrete 11, the strength is improved and accidents such as collapse can be prevented.

FIG. 3 shows a precast concrete product 2
1, a plurality of reinforcing bars 23 project in the horizontal direction on one side surface of a lower part of a concrete body 22 formed in a rectangular shape, and a hole 24 for fence construction is formed on the upper surface.

As shown in FIG. 4, the reinforcing bar 23 is integrated with the precast concrete product 21 while maintaining the bonding strength by embedding an L-shaped reinforcing bar inside the precast concrete product 21 at the time of molding.

Next, a construction method of a building using the precast concrete product 21 manufactured in advance in a factory will be described with reference to FIG.

First, the precast concrete product 21
Is prepared, and a foundation hole 7 having a width, a depth and a required length in which the precast concrete product 21 fits is excavated on the ground where the building is to be constructed.
The quarry is compacted or a concrete slab or waste concrete 8 laid thereon is applied, and a base concrete slab 9 is laid thereon.

After the leveling of the base concrete plate 9 is performed, the precast concrete product 21 is placed on the base plate 9.

Further, the horizontal reinforcing bar 10 is arranged above the reinforcing bar 23 so as to be orthogonal to the reinforcing bar 6, so that the reinforcing bars 23 are bound together. Multiple precast concrete products 21
Are arranged in the horizontal direction, the precast concrete products 21 are connected to each other by the long horizontal reinforcing bars 10.

After fine adjustment of the inclination and level of the precast concrete product 21, the concrete 11 is poured into the space between the foundation hole 7 and the precast concrete product 21 and hardened.

Thereafter, a support 25 is erected in the fence construction hole 24, and a fence wire mesh is stuck between the supports 25,
Complete the fence.

FIG. 5 is different from FIG. 4 in that the insert 26 is embedded at the time of molding the precast concrete product 21, and the reinforcing bar 23 is removably screwed into the insert 26 as necessary.

When the reinforcing bar 23 is made detachable as described above, the reinforcing bar 23 does not protrude from the concrete product, so that the work during transportation or stacking is facilitated.

As described above, the precast concrete product 21 is placed directly in the foundation hole 7 and
By doing so, the labor for assembling and disassembling the foundation formwork or the labor for installing the foundation blocks can be omitted, and the leveling operation only needs to be performed once, so that the construction time can be reduced and the cost can be reduced.

Further, the precast concrete product 21
Is integral with the part buried in the ground,
Since 3 serves as an anchor to concrete 11, strength is improved and accidents such as collapse can be prevented.

4 and 5, the lower reinforcing bar 23 of the precast concrete product 21 is shown as protruding on one side. However, if the reinforcing bar 23 is protruding on both sides, the reinforcing bar 23 is anchored to the ground on both sides. The strength is further improved. However, when one of the roads is used, a product 21 having a reinforcing bar 23 projecting to one side as in this embodiment is used.
If the reinforcing bar 23 is directed to the side opposite to the road, there is an advantage that the road side does not have to be dug much and traffic is not obstructed during construction.

FIG. 6 shows a precast concrete product 1,
An engaging groove 5 of a joint means in which a T-shaped molding material made of a synthetic resin or metal is embedded in both end sides a and b of 21 is formed.

FIG. 7 shows a precast concrete product 1,
An engaging groove 5 of a joint means in which a T-shaped molding material similar to that shown in FIG. 6 is embedded is formed at one end b of one end 21 and one end of a rear surface c.

FIG. 8 shows the precast concrete products 1 and 1 shown in FIGS.
The precast concrete products 1 and 1 are joined by inserting a joiner having an I-shaped cross section, a T-shaped pattern, a work pattern, a U-shaped pattern, or a ten-shaped pattern into each of the engaging grooves 5 and 5.

[0048]

As described above, according to the present invention, since concrete is poured by inserting a reinforcing bar into the through hole provided in the lower side surface of the precast concrete product in the foundation hole, the conventional concrete blocks are stacked. Not only does it take no effort to parallel or parallel, but also compared to the construction method of setting up a pre-cast product on a basic block, it does not take much time to set up the basic block. The construction time can be shortened and the construction cost can be reduced.

The precast concrete product has a lower part in the ground, and the reinforcing steel penetrated into the through hole on the lower side surface serves as an anchor to the ground solidified with concrete, and the strength is increased. And other secondary disasters can be prevented.

Further, since the work can be carried out simply by hardening with a concrete through a reinforcing bar in a through hole provided in the lower side surface, the construction period can be shortened. Further, the strength of the precast concrete product itself can be improved because it is integrated with the foundation part.
Because there is a through hole on the lower side to let the rebar pass,
If the through-hole is reinforced with concrete through a reinforcing bar, it becomes a building integrated with the foundation, and a collapse accident or the like can be prevented.

Since a decorative material such as tile, granite, or marble is stuck on the surface, the difference in quality at the level of the craftsman in the construction of tiles and the like at the conventional construction site becomes a factory-produced product. By stabilizing the quality and pasting the tiles and the like in advance, the work of attaching the tiles and the like at the construction site becomes unnecessary, and the construction period can be shortened.

Further, since the connection between the precast products is performed using joiners having various cross-sectional shapes which are engaged with and connected to the respective engagement grooves provided in the precast product, the installation is extremely efficient. Has various effects.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a precast concrete product used in a first embodiment.

FIG. 2 is a longitudinal side view showing a construction state of a building according to the first embodiment.

FIG. 3 is a perspective view showing an example of a precast concrete product used in another embodiment of the above.

FIG. 4 is a longitudinal sectional side view showing a construction state of a building according to another embodiment of the above.

FIG. 5 is a longitudinal sectional side view showing a construction state of a building according to still another embodiment.

FIG. 6 is a perspective view of a precast concrete product having engagement grooves at both ends.

FIG. 7 is a perspective view of a precast concrete product having an engaging groove at one end and one end of a rear surface in another embodiment of the above.

FIG. 8 is a plan view showing joining of a precast concrete product.

[Explanation of symbols]

 1,21 Precast concrete product 2,22 Body 3 Through hole 4 Cosmetic material 5 Engagement groove 6 Reinforcing bar 23 Reinforcing bar J Joiner

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hitoshi Aogata Asahi Kasei Corporation

Claims (8)

[Claims] 1. A precast concrete product such as a retaining wall, a fence, a flowerbed, or the like, is provided with a molding material having a T-shaped, semicircular or triangular shaped engaging groove made of synthetic resin or metal at both ends. A plurality of buried products are arranged in parallel in a foundation hole at a construction site, and a joiner is inserted into the engaging groove, and the two opposing precast concrete products are integrated to give a composite, thereby providing the precast concrete product. A plurality of through holes communicating with both side surfaces are provided on the lower side surface of the base, and a reinforcing bar is inserted here, leveling is performed, concrete is poured into the foundation hole, hardened and fixed. Construction method of building. 2. A precast concrete product such as a retaining wall, a fence, a flowerbed, or the like, is provided with a molding material having a T-shaped, semicircular or triangular-shaped engaging groove made of synthetic resin or metal at both ends. A plurality of embedded products are arranged in parallel in a foundation hole at a construction site, and H-type, T-type, and X-type joiners are inserted into the engagement grooves, and two or more opposing precast concrete products are integrated. To give a synthesis,
An insert nut having an internal structural reinforcing bar connected thereto is embedded in a part or both side surfaces of the lower part of the precast product, and a round bar threaded to one side is screwed into the insert nut at the time of construction and fixed. A method for constructing a building, characterized in that a horizontal reinforcing bar is passed over a bar and bound, and then concrete is cast and the concrete product is fixed. 3. A product in which a molding material having a T-shaped, semi-circular or triangular-shaped engaging groove made of a synthetic resin or metal at both ends is embedded. The precast concrete product used in the construction method according to claim 2, wherein an insert nut connected to the internal structural reinforcing bar is embedded. 4. A method for connecting and connecting two or more precasts having embedded therein a molding material having a T-shaped, semicircular, or triangular-shaped engaging groove made of a synthetic resin or metal to a precast product. Characteristic construction method. 5. A joining material is provided at a lower portion used in the construction method according to claim 4, and a T-shaped, semicircular-shaped, or triangular-shaped groove is embedded on both sides with a molding material made of synthetic resin or metal. A precast product. 6. A joiner engaged with and connected to each of the engaging grooves provided in the precast product according to claim 1 or 2, has a cross-sectional shape of an I-shape, a T-shape, a working shape, or a U-shape. A joiner characterized by being a cross shape. 7. The joiner according to claim 6, wherein a part of said joiner is rotatable. 8. The joiner according to claim 6, wherein a part of said joiner is extendable and contractible.