JPH0673923A - Concrete fence and construction method thereof - Google Patents

Abstract

PURPOSE:To erect and fix concrete fences easily and definitely and turning them into one piece structure. CONSTITUTION:In terms of a concrete fence 4 where support pieces 2, which project on both sides, are installed near the lower end of a fence main body 1 preliminarily formed with concrete and reinforcing bar insertion holes 3 which penetrate both the sides around the lower end of the concrete fence main body 1, the concrete fence 4 is erected and loaded on a foundation 5. During this construction work, the support pieces 2 on both sides are placed in contact with the top of the foundation and supported. Under this condition, reinforcing bars 6 are inserted into the reinforcing bar insertion hole 3 where the reinforcing bars 6 are connected to and fixed with the foundation 5. After that, concrete is cast around the lower part of the concrete fence 4 in such a fashion that the cement may penetrate into the reinforcing bar through holes 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete fence which is erected around a site such as a house and a construction method thereof.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG.
Blocks (a) made of G are stacked, and the reinforcing bars (b) are inserted into the hollow inside, and the cement (c) is inside the hollow.
There is known a concrete fence which is formed by filling up with and arranging it upright, and arranging this in a lateral direction.

[0003]

However, in the above-mentioned conventional technique, it is necessary to stack the blocks (a) on site and the construction is difficult, and moreover, a step is generated between the blocks (a). It was easy and difficult to construct with good appearance, and it was difficult to form a strong concrete fence.

Therefore, as shown in FIG. 8, a concrete wall (d) preformed into a predetermined shape by a concrete is considered. The concrete fence (d) is placed upright on a foundation (e), and cement (c) is cast around the lower end portion of the foundation to be embedded and fixed.

In this case, however, the concrete fence (d) is apt to wobble and move when the cement (c) is placed, and the concrete fence (d) is inclined and constructed easily.
Further, the concrete wall (d) was difficult to be erected and installed reliably and firmly.

The present invention has been invented in order to solve the above-mentioned problems in the prior art, that is, the problem is that it can be easily installed upright and fixed as an integrated body on site, and furthermore, In this case, it is an object of the present invention to provide a concrete fence which does not wobble or tilt, has a good appearance as an integrated body, and is reliably and firmly erected and fixed, and a construction method thereof.

[0007]

A concrete fence according to a first aspect of the present invention is provided with a supporting piece projecting to both sides at a lower end portion of a fence main body previously molded by the concrete, and the same main body. In the construction of the concrete fence according to claim 2), a reinforcing bar insertion hole is formed penetrating the front and back in the vicinity of the lower end of the concrete fence, and the concrete fence is erected on the foundation. , At that time, support pieces on both sides are supported by abutting against the upper surface of the foundation, and in this state, the reinforcing bar is inserted through the reinforcing bar insertion hole, and the reinforcing bar is connected and fixed to the foundation. The cement is cast around the lower end portion of the concrete fence so that the cement enters, and the lower end portion of the concrete fence is embedded and fixed in the cement. By using the fence and by adopting the same construction method, Those whose serial issue has been resolved.

[0008]

The concrete fence of the present invention is provided with support pieces protruding to both sides at the lower end portion of the fence body preformed by the concrete, and penetrates the front and back sides near the lower end portion of the fence body. When the reinforcing bar insertion hole is formed and is erected on the foundation, the supporting pieces on both sides are abutted against and supported by the upper surface of the foundation. In this state, the reinforcing bar is inserted into the reinforcing bar insertion hole and the reinforcing bar is inserted. Is connected and fixed to the foundation, and then the cement is cast around the lower end portion of the concrete fence so that the cement enters the rebar insertion hole, and the lower end portion of the concrete fence is cemented. It is to be embedded and fixed inside. That is,
The concrete fence can be easily installed as an integral body with good appearance by simply fixing it upright, and even when cement is placed, the concrete fence does not wobble due to the support pieces on both sides. Is securely supported in an upright state, and after the cement has hardened, the supporting piece serves as an anchor, and the reinforcing bar is inserted into the reinforcing bar insertion hole and cement is inserted into the reinforcing bar insertion hole. The concrete wall, which is inside, is firmly and erected and fixed firmly.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A concrete fence 4 shown in FIGS. 1 and 2 is an embodiment of the present invention, and a support piece 2 projecting to both sides is formed at a lower end portion of a fence main body 1 preformed by the concrete. And a reinforcing bar insertion hole 3 penetrating through the front and back sides is formed in the vicinity of the lower end of the same wall body 1. Further, the construction method of the concrete fence 4 is as follows. First, the concrete fence 4 is placed upright on the foundation 5, and at this time, the support pieces 2 on both sides are contacted and supported on the upper surface of the foundation 5. In the state, the reinforcing bar 6 is inserted in the reinforcing bar insertion hole 3.
The reinforcing bar 6 is connected and fixed to the foundation 5, and then the cement 7 is driven around the lower end portion of the concrete fence 4 so that the cement 7 enters the hole 3 for inserting the reinforcing bar. The lower end portion of the concrete fence 4 is embedded and fixed in the cement 7.

The fence main body 1 of the concrete fence 4 is commonly called a PC.
The plate is formed in a rectangular shape, and a mark line 8 is provided over the entire circumference at a position at a constant distance from the lower end of the plate. A portion below the mark line 8 is buried in the ground, and the concrete fence 4 is erected on the ground. Further, the support piece 2, the reinforcing bar insertion hole 3 and the like are provided at a position below the same mark line 8.

Four support pieces 2 are provided on both sides of the lower end portion of the wall body 1 near both ends, and one piece of the substantially L-shaped metal fitting 9 is fixed to the wall surface near the lower end of the wall body 1 by a fixing bolt 10. The other piece of the substantially L-shaped metal fitting 9 is provided as the support piece 2 so as to project outward in the horizontal direction.

In constructing the concrete fence 4, the foundation 5 is first formed as shown in FIG. That is, (a) a burial hole 11 is dug in the ground,
(B) The mold 12 is installed in the burial hole 11 and the crushed stones 13 are spread, and the base layer 13 of the foundation 5 is formed by applying sufficient rolling pressure.
(C) A fixed reinforcing bar 14 is installed on the same underlayer 13, and (d) a concrete for a foundation is poured from above the fixed reinforcing bar 14 onto the underlayer 13 to form a surface layer 15 of the foundation 5. At that time, the tip portions of the plurality of fixed reinforcing bars 14 are provided so as to project from the upper surface of the surface layer 15. After that, after the base concrete of the surface layer 15 is hardened, the mold 12 is removed and removed.

Next, as shown in FIG. 4, the concrete fence 4
Is placed upright on the foundation 5, and in this embodiment,
The height and inclination of the concrete fence 4 are adjusted. In this case, leg bolts 16 are screwed and attached to each support piece 2 so as to be vertically movable and adjustable, and the lower ends of the leg bolts 16 are in contact with the upper surface of the base 5 as a part of the support pieces 2. The leg bolts 16 are vertically moved by being rotated by a hexagonal wrench 17, and the downward protrusion amounts of the leg bolts 16 are adjusted to each other, whereby the leg walls 16 are tilted together with the height of the concrete fence 4. Is to be adjusted.

Next, as shown in FIG. 5, in this embodiment, the concrete fence 4 is temporarily fixed on the foundation 5. In this case, an anchor bolt 19 is inserted into a fixing hole 18 formed in the support piece 2, and the anchor bolt 19 is driven and fixed on the upper surface of the foundation 5 by a hammer 20 to form the anchor bolt 19.
The fixing nut 21 is screw-fastened to the support piece 2 and the support piece 2 is temporarily fixed on the base 5.

Next, as shown in FIG. 1, the concrete fence 4
Reinforcing bars 6 are inserted through the respective reinforcing bar insertion holes 3, and both ends of each reinforcing bar 6 are respectively locked and coupled to the fixed reinforcing bars 14 projecting from the foundation 5, so that each reinforcing bar 6 is fixed by the fixed reinforcing bars 14. The bases 5 are connected and fixed to each other via the bases.

Finally, as shown in FIG. 2, a form 12 is installed around the lower end of the concrete fence 4 and cement 7 is poured into the inside of the form 12, and in this case, the reinforcing bar is inserted. The cement 7 is inserted into the hole 3, and by curing and hardening the cement 7, the lower end portion of the concrete fence 4 is embedded and fixed in the cement 7 together with the support piece 2, the reinforcing bar 6, and the like. It is something. After the cement 7 is cured and hardened, the form 12 is removed and removed,
The earth is filled in the burying hole 11 up to the height of the marking line 8 of the concrete fence 4.

Therefore, the concrete fence 4 of the embodiment
In addition, in the construction method thereof, the concrete fence 4 is simply erected and fixed, and the concrete fence 4 can be easily constructed as an integrated body with good appearance without stacking construction.
Further, when the cement 7 is placed during the construction, the concrete fence 4 is surely supported by the support pieces 2 on both sides in an upright state so as not to wobble. The cement 7 is placed in the concrete fence 4 after the height and inclination of the concrete fence 4 are adjusted, and the cement fence 7 is securely temporarily fixed. Moreover, after the cement 7 is hardened, the supporting piece 2 serves as an anchor, the reinforcing bar 6 is inserted into the reinforcing bar insertion hole 3, and the cement 7 is inserted into the reinforcing bar insertion hole 3. The concrete wall 4 is securely and erected and fixed.

The concrete fence and the method for constructing the same according to the present invention may be the embodiment shown in FIG. That is, in this embodiment, the strip 22 is fitted and fixed to the lower end of the concrete fence 4, and both end portions of the strip 22 serve as the support pieces 2 of the concrete fence 4.
Are projected to both sides of. In this case, a concave groove portion 23 is formed in the middle upper surface of the band plate material 22, and the lower end portion of the concrete fence 4 is fitted and fixed to the concave groove portion 23. The entire lower surface of the strip 22 having the support pieces 2 is in direct contact with the upper surface of the foundation 5, and the height of the concrete fence 4 is not adjusted.

[0019]

As described above, according to the concrete fence of the present invention and the method for constructing the concrete fence, the concrete fence can be simply and satisfactorily constructed as a unit by standing and fixing it, and cement can be placed during the construction. Also in this case, the concrete fence is surely supported by the support pieces on both sides in an upright state so as not to wobble, and after the cement is hardened, the support pieces serve as anchors, The reinforcing bars are inserted through the reinforcing bar insertion holes and the cement is inserted into the reinforcing bar insertion holes, so that the concrete fence can be firmly and erected.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a concrete fence and a construction method thereof according to the present invention.

FIG. 2 is a perspective view showing one construction process of the embodiment.

FIG. 3 is a perspective view showing a manufacturing process (a), (b), (c), and (d) of the foundation of the embodiment.

FIG. 4 is a cross-sectional view showing one construction process of the same embodiment.

FIG. 5 is a cross-sectional view showing one construction process of the same embodiment.

FIG. 6 is a sectional view showing another embodiment.

FIG. 7 is a perspective view showing a conventional example of the present invention.

FIG. 8 is a cross-sectional view showing a conventional improvement plan of the present invention.

[Explanation of symbols]

 1 Fence body 2 Support piece 3 Rebar insertion hole 4 Concrete fence 5 Foundation 6 Reinforcing bar 7 Cement

Claims (2)

[Claims] 1. A support piece projecting to both sides is provided at the lower end of a fence main body preformed by concrete, and a reinforcing bar insertion hole penetrating through the front and back is formed near the lower end of the same fence main body. A concrete fence made up of. 2. The concrete fence according to claim 1) is erected on a foundation, and at that time, support pieces on both sides are supported by abutting against the upper surface of the foundation. In this state, the concrete fence is inserted into the rebar insertion hole. The reinforcing bar is inserted and fixedly connected to a foundation, and then the cement is cast around the lower end portion of the concrete fence so that the cement enters the hole for inserting the reinforcing bar, and the concrete A method of constructing a concrete fence, characterized in that the lower end portion of the fence is embedded and fixed in the same cement.