JP2004285675A - Unit wall and concrete wall formed by connecting two or more unit walls - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a unit wall having high earthquake resistance and a wall having it. <P>SOLUTION: In this wall unit including a concrete-made wall body 11 and a reinforcing member 12 connected to the wall body to reinforce the wall body, the wall body 11 and the reinforcing member 12 are integrated with each other to form a plate-like unit. In the wall body 11, a recessed part 11B is formed on at least one surface, and the reinforcing member 12 is stored in the recessed part 11B to be connected to each other. The reinforcing member 12 is formed as a lightweight member having a smaller specific gravity than that of concrete material 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a unit fence formed as a plate-shaped unit by integrally forming a concrete fence main body and a reinforcing member joined to the fence main body to reinforce the fence main body, and a concrete fence obtained by connecting a plurality of the unit fences It is about.
[0002]
[Prior art]
Conventionally, as a wall installed around a house, at the site, a plurality of reinforcing bars extending upward from the foundation as reinforcing members are arranged at predetermined intervals in the horizontal direction, and the reinforcing bars are passed through the hollow portions of a plurality of small hollow blocks. After arranging the hollow blocks so as to be adjacent to each other in the horizontal direction and stacking the hollow blocks upward so as to form a multi-stage, the concrete is inserted into the gap between the adjacent hollow blocks and into the hollow portion where the multi-stage hollow blocks can communicate with each other. A fence constructed by pouring and filling a material is known (for example, see Patent Document 1).
[0003]
However, the wall according to Patent Literature 1 needs to be constructed by stacking a large number of hollow blocks one by one on the site, which requires a large amount of work at the site, requires a lot of manpower, and requires a long construction period. There was a problem that it would. This problem leads to an increase in cost.
[0004]
In order to solve such a problem according to Patent Document 1, a wall length having a uniform thickness and a base block for supporting the wall plate can be transported in advance in a factory by precast concrete in a lateral length. After mounting and fixing a plurality of the foundation blocks laterally adjacent to the leveling concrete in the gutter formed by excavating the ground, the lower part of the fence plate is bolted to the foundation blocks. A concrete fence is known in which the fences are connected together with nuts and nuts, and then the foundation blocks in the above-mentioned gutters are buried with soil (for example, Patent Document 2).
[0005]
In Patent Document 2, in order to produce the fence slab and the base block in a factory in advance, the hollow blocks as in Patent Document 1 are piled up on site or concrete is filled into the hollow portions of the hollow blocks. Since the time and labor required for the operation can be reduced, the amount of work on site can be reduced, and the construction period can be shortened and the cost can be reduced.
[0006]
[Patent Document 1]
JP-A-10-237986 (FIGS. 1 to 6)
[Patent Document 2]
JP-A-2001-279956 (FIGS. 3 to 6)
[0007]
[Problems to be solved by the invention]
However, in the concrete wall of Patent Document 2 described above, the earthquake resistance is not improved at all, and the problem in this respect remains. In Japan, especially in urban areas where houses are densely packed, structures are strongly required to have earthquake countermeasures from the viewpoint of preventing disasters caused by earthquakes. Fences are no exception and require earthquake resistance.
[0008]
In Patent Document 1 described above, the hollow block is reinforced by a reinforcing bar, and in Patent Document 2 the fence itself is made of concrete, so that it has a certain strength against static load or external force such as impact force. It is thought that it is.
[0009]
However, when examining the seismic resistance, both Patent Literatures 1 and 2 show that the thickness of the upper part of the fence is the same as that of the lower part. The weight becomes the vibration mass as it is, and it cannot be said that it has earthquake resistance. That is, if the thickness of the fence is increased to secure the strength, the vibrating mass at the top of the fence will increase as it is, and the seismic resistance will decrease, and the securing of the strength and the securing of the seismic resistance are not always the same.
[0010]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a unit fence which improves seismic resistance and is easy to handle, and a concrete fence formed by connecting a plurality of the unit fences. It is another object of the present invention to effectively utilize the surface of the fence and to add a touch to the garden or the like facing the fence.
[0011]
[Means for Solving the Problems]
The unit fence according to the present invention includes a concrete fence main body and a reinforcing member that is connected to the fence main body and reinforces the fence main body. Here, the term "made of concrete" includes not only made of pure concrete, but also made of steel reinforced.
[0012]
In this unit wall, in the present invention, the wall main body and the reinforcing member are integrally formed to form a plate-shaped unit, and the wall main body has a concave portion formed on at least one surface, and the reinforcing member is housed in the concave portion. The reinforcing member is formed as a lightweight member having a lower specific gravity than a concrete material.
[0013]
According to the present invention, since the weight of the wall main body is reduced by the concave portion, the vibration mass is reduced and the earthquake resistance is improved. Since the periphery of the concave portion is thick, the decrease in strength is not so large. Further, since the concave portion is reinforced by a lightweight member, the above-mentioned decrease in strength is further reduced. As a result, the unit wall has almost no decrease in strength as a whole, and the earthquake resistance is improved. From the viewpoint of reducing the vibrating mass, it is desirable that the concave portion is formed in an upper portion of the wall main body.
[0014]
It is preferable that the wall main body has a joint portion that can mutually connect the wall main bodies of the plurality of unit walls. At this joint, the units are connected by, for example, bolts, and the plurality of units form a strong wall.
[0015]
In the present invention, the fence main body is formed at a lower portion of the fence main body buried in the ground with a base portion extending at right angles from one surface of the fence main body and installed on the ground when the lower part is buried. Is preferred. The foundation increases the footprint on the leveling concrete, stabilizes the fence and allows for a firm attachment to the leveling concrete.
[0016]
It is preferable that a hole penetrating vertically is formed in the base portion of the wall main body. The foundation is firmly attached to the leveling concrete simply by pouring concrete into the hole from above.
[0017]
The lightweight member may be configured such that a plate-shaped surface member that covers at least the lightweight member of the lightweight member and the wall body is attached to a surface opposite to a contact surface with the wall body. The surface member is selected from the viewpoint of protection of the lightweight member or the beauty of the wall main body, and any material can be applied. For example, the surface member may be a stone panel to give the fence a sense of quality.
[0018]
When a stone panel is used as the surface member, it is preferable that the lightweight member supports the stone panel along the outer periphery of the stone panel on or near the surface in contact with the stone panel. Since the stone panel is relatively expensive and vulnerable to external force such as impact, it is reinforced with a lightweight member around the panel to enhance the safety during transportation.
[0019]
When the reinforcing member is attached to the wall main body, the stone panel is preferably displaceable with respect to the wall main body on a contact surface with the wall main body. For example, since the stone panel is free from the displacement due to the displacement of the wall body when the wall is vibrated, the stone panel is protected without receiving excessive stress from the wall body.
[0020]
In addition, the base of the fence main body can be installed on the ground so that the upper surface of the base is exposed from the ground, and at this time, a water reservoir that opens upward is formed. It is also possible to Goldfish can be put in the water reservoir, and plants can be cultivated hydroponically.
[0021]
Further, the wall main body has a water storage portion for receiving and receiving water from the outside at the upper part of the wall main body, and the water storage portion is formed as a cylindrical space extending in the lateral direction inside the wall main body. It is formed or formed as a groove extending upward and extending laterally at the upper end surface of the wall main body, so that water flows from the water storage portion at the upper portion of the wall main body to the water reservoir on the base portion of the wall main body. Can be made to flow down or drip. If the water storage section is formed as a cylindrical space extending in the horizontal direction inside the fence body, it can be used as a water conveyance path when a plurality of unit walls are connected, and formed as a groove that opens upward. If it is, the water supplied there will flow down through the hole at the bottom, giving it the appearance of a waterfall, and if it is dropped, it will replenish water to the water reservoir.
[0022]
The wall body can be configured such that a culture soil or a water retaining material for cultivating plants is attached to the surface of the wall body so as to receive dripping of water from the water storage unit, and water supply to the plants is prevented. Done automatically. Excess water is drained from culture soil or water retention material.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
[0024]
FIG. 1 is a perspective view as viewed from the front surface of a fence in which a plurality of unit walls are assembled and installed according to an embodiment of the present invention, and FIG. 2 is a perspective view as viewed from the back surface without ground.
[0025]
1 and 2, the side walls of the plurality of unit walls 10 are connected to each other to form a wall.
[0026]
Each unit fence 10 is made as a unit in a factory before installation work as a fence, and has a fence main body 11 and a lightweight member 12 attached thereto. The lightweight member 12 has a stone panel as a surface member. 13 is attached.
[0027]
The wall main body 11 is made of concrete, but it is also possible to appropriately insert a reinforcing bar or the like. As shown in the figure, the wall main body 11 has an L-shaped vertical cross-sectional shape in a plane perpendicular to the wall surface, and the L-shaped projecting portion at the lower end serves as a base portion 11A. ing. The wall main body 11 is located above the base 11A, that is, on the surface opposite to the side on which the base 11A is provided, in a range in which the wall 11 functions as a wall by hanging from the ground after installation work. A concave portion 11B which is sunk in the thickness direction so as to be surrounded by the peripheral portion is formed. It is preferable that the recess 11 </ b> B is formed preferentially above the lower part of the wall body 11.
[0028]
A lightweight member 12 as a reinforcing member is housed and attached to the recess 11B. As the lightweight member 12, a material having a specific gravity smaller than that of the concrete forming the wall main body 11 is selected. For example, a synthetic resin such as styrene foam is given as an example. The lightweight member 12 may be formed in advance into a size suitable for the recess 11B of the wall body 11 and fixedly attached to the wall body 11 or may be formed by pouring a material into the recess 11B. Is also good. In addition, the lightweight member 12 may be fixedly attached to the concave portion 11B by any method, but adhesion is an example.
[0029]
In the present embodiment, as a preferred example, a stone panel 13 is attached to the lightweight member 12 as a surface member on the surface opposite to the contact surface with the bottom surface of the concave portion 11B of the wall body 11. Although this stone panel 13 is attached to the lightweight member 12, it projects from the periphery of the lightweight member 12 and has the same size as the surface of the wall main body 11. Therefore, when the lightweight member 12 is attached to the wall main body 11, the stone panel 13 comes into contact with the surface of the wall main body 11 at the projecting portion and matches the outer shape of the wall main body 11. Preferably, the stone panel 13 is not fixed to the wall body 11 but is held by a lightweight member 12 attached to the wall body 11 and is displaceable on the contact surface with respect to the wall body 11, for example, is slidable. is there.
[0030]
The stone panel 13 is made of a high-grade natural stone or artificial stone, for example, and is made thin. Further, the stone panel 13 is attached to the lightweight member 12 to protect the lightweight member 12 that is easily damaged.
[0031]
Furthermore, as shown in FIG. 2 as a preferred embodiment, the wall main body 11 has joints 14 on both sides at a surface opposite to the surface where the recess 11B is formed. The joint portion 14 is for connecting two adjacent unit walls 10 and is not limited to a specific form. In the example of FIG. 2, a "U" -shaped shape integrally held by concrete is used. A connection hole 14A is formed in the metal fitting, and a bolt or the like (not shown) is passed through the connection hole 14A and tightened with a nut to be connected.
[0032]
In the example shown in FIG. 2, as a preferred embodiment, a fixing hole 15 penetrating vertically is formed in the base portion 11A of the wall main body 11. When fixing the fence main body 11 to the leveling concrete P (see FIG. 1), the foundation 11A is fixed to the leveling concrete P simply by pouring the concrete into the fixing holes 15. Further, when fixing bolts or the like are provided vertically on the leveling concrete P, the concrete is poured into the fixing holes 15 after fixing the base portion 11A with the fixing bolts in the fixing holes 15, and then furthermore. The fixing strength is improved.
[0033]
FIG. 3 shows another example of the joint portion as another embodiment. In FIG. 3A, the side end surfaces of the wall main body 11 form step portions 11C and 11D that are compatible with each other. Here, the two wall main bodies 11 support each other in the vertical direction, and are located below the step portion 11C and 11D on the wall surface. A bolt (not shown) is passed through a bolt hole 16A of the L bracket 16 fixed on the upper side, and is joined by tightening in a vertical direction.
[0034]
In the example of FIG. 3B, a sheath tube 17 is embedded in the unit wall 11 so as to open at both ends in the lateral direction. To join the plurality of wall bodies 11, a wire or a rod (both not shown) is passed through the sheath tube 17 and fastened at its protruding end, so that the wall bodies 11 can be joined together. Further, a pin may be driven into the sheath tube for joining, or a threaded surface of opposite threads may be formed on the inner diameter of the sheath tube at both ends, and a threaded body may be screwed and joined here.
[0035]
Further, the form of the lightweight member 12 as another embodiment will be described. As shown in FIG. 4, the lightweight member 12 of FIG. 1 is attached to the back surface of a stone panel 13 as a surface member substantially equal in size to the wall main body 11. The size and shape of the stone panel 13 so as to leave the peripheral portion. However, as shown in FIGS. 5A and 5B, by eliminating the central portion of the lightweight member 12, the usage of the lightweight member 12 can be reduced. Since the lightweight member 12 reinforces the strength of the stone panel 13 at a portion near the periphery of the stone panel 13, the absence of the lightweight member at the central portion hardly causes a decrease in strength. FIG. 5B is a longitudinal sectional view in a state where the lightweight member 12 is attached to the wall main body 11.
[0036]
In the above-described embodiment, a stone panel is provided on the outer surface of the fence, that is, the surface, to give a sense of beauty. However, an example in which the inner surface, that is, the back surface facing the home garden is effectively used to bring about aesthetics and taste. Will be described as still another embodiment.
[0037]
In FIG. 6, the base body 11A of the wall main body 11 is formed to be thick, so that when the unit wall is installed and fixed on the ground, the upper portion of the base section 11A projects from the ground. A water reservoir 11C is formed on this thick base 11A. This water reservoir 11C can be used for various uses for water used in gardens. For example, it can be used as a water tank for holding goldfish or the like, or as a pot for aquatic plant cultivation, and as a water reservoir for watering a garden. Although the base portion 11A is hollow due to the water reservoir 11C, the outer shape is relatively large, and the stability of the wall main body 11 is improved. Further, the upper end of the wall main body 11 is thick, a groove 18 is formed as a water storage portion, and a plurality of drip holes 18A penetrating downward are provided at the bottom thereof. When a plurality of unit walls are joined, the groove 18 forms a flow path when water is supplied at one location, and guides water to all the unit walls. The water in the groove is dropped from the dropping hole 18A, reaches the water retaining portion 11C, and is stored. If the diameter of the drip hole 18A is increased, the water will flow down, giving the appearance of a waterfall as seen from the garden. The water storage portion is not limited to the above-described groove, and may be a cylindrical hollow hole extending in the lateral direction in the wall body.
[0038]
Further, the upper end of the wall main body 11 in which the groove 18 is formed is thickened, so that the wall main body 11 functions as a reinforcing flange. At this time, the thickness of the thick portion in the height direction of the fence is small, and since it is cut out by the groove 18, the weight does not increase so much.
[0039]
Still another embodiment as an example utilizing the back surface of the wall main body 11 is shown in FIG. In the example of FIG. 7A, the wall main body 11 has a groove 18 and a drip hole 18A similar to those in FIG. A projecting portion 19 extending in the direction is provided, and a through hole 20 is formed in the projecting portion 19 in the lateral direction. The through hole 20 and the dripping hole 18A communicate with each other inside the wall main body 11, so that water in the groove 18 is supplied to the through hole 20 through the dripping hole 18A. The through hole 20 further communicates with an opening 21 that opens on the outer surface of the protrusion 19. Culture soil and a water retention material are put in the through-hole 20 and the opening 21, and plants can be cultivated from the opening 21. The culture soil is supplied with water dropped into the through hole 20. Instead of the through-hole 20, an internal space for accommodating the cultivated soil, which may communicate with each of the openings 21 independently, may be formed. Further, the opening 21 can be formed not only on the side surface of the protrusion 19 but also on the upper surface.
[0040]
Next, in the example of FIG. 7B, a plate-like porous material 22 as a water retention material is attached to the back surface of the wall main body 11 instead of the protruding portion 19 of FIG. Although the porous material 22 may or may not include the culture soil, it can receive water dropped from the groove 18 through the drip hole 18A, sufficiently store the water, and plant moss or other plants on the surface.
[0041]
【The invention's effect】
As described above, the present invention forms a concave portion on at least one surface of a concrete fence main body and attaches a lightweight member thereto, so that the strength against external force is not significantly reduced, and the vibration mass, particularly The vibrating mass at the upper part can be reduced, and the earthquake resistance in an earthquake or the like is improved. Further, reinforcement by a lightweight member is also possible. Furthermore, the front panel is attached to the surface of the lightweight member, or the back surface or the base portion of the fence body is used to provide an aesthetic feeling and taste, thereby giving a sense of quality and providing usefulness. Moreover, since the present invention can be manufactured in a factory as a fence unit, not only is it easy to transport, but also the construction period of the fence installation is shortened, and the construction cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional perspective view when viewed from one surface when a plurality of unit walls as one embodiment of the present invention are joined to form a wall.
FIG. 2 is a perspective view of the wall of FIG. 1 when the ground is omitted and viewed from the other surface.
3A and 3B show an example of a joint portion as another embodiment, wherein FIG. 3A is a perspective view when a step portion is formed on a wall main body, and FIG. 3B is a case where a sheath tube is provided.
FIG. 4 is a perspective view of a lightweight member supporting the stone panel of FIG. 1;
5A and 5B show a stone panel and a lightweight member as still another embodiment, wherein FIG. 5A is a perspective view thereof, and FIG. 5B is a cross-sectional perspective view when attached to a wall main body.
FIG. 6 is a perspective view of a wall main body as still another embodiment.
7 (A) and 7 (B) are perspective views of a wall main body showing still another embodiment.
[Explanation of symbols]
Reference Signs List 10 unit fence 11 wall main body 11A base 11B recess 11C water reservoir 12 reinforcing member (lightweight member)
13 Surface materials (stone panels)
14 Joint 15 holes (fixed holes)
18 water storage unit (groove)
22 Water retention material (porous material)

Claims (12)

A concrete fence main body and a reinforcing member which is connected to the fence main body and reinforces the fence main body, wherein the fence main body and the reinforcing member are integrally formed to form a plate-like unit, and the fence main body is A unit formed with a concave portion on at least one surface, wherein the reinforcing member is coupled to the concave portion while being housed in the concave portion, and the reinforcing member is formed as a lightweight member having a specific gravity smaller than that of the concrete material. Fence. The unit wall according to claim 1, wherein the wall body has a joint portion that can mutually connect the wall bodies of the plurality of unit walls. The base of the fence body is formed at a lower portion of the fence main body buried in the ground, and extends at a right angle from one surface of the fence main body to be installed on the ground when the lower part is buried. The unit wall according to claim 1 or 2. 4. The unit wall according to claim 3, wherein a hole penetrating vertically is formed in a base portion of the wall main body. The light-weight member is provided with a plate-like surface member that covers at least the light-weight member of the light-weight member and the fence main body on a surface opposite to a contact surface with the wall body. 4. The unit fence according to any one of the above items 4. The unit wall according to claim 5, wherein the surface member is a stone panel. 7. The unit fence according to claim 6, wherein the lightweight member supports the stone panel along the outer periphery of the stone panel on or near the surface of the stone panel. The unit wall according to claim 7, wherein the stone panel is displaceable relative to the wall main body on a contact surface with the wall main body. 4. The base portion of the fence body according to claim 3, wherein a water reservoir portion that opens upward when the base portion is installed on the ground so that an upper surface of the base portion is exposed from the ground is formed. Unit fence. The wall main body has a water storage portion that receives water from the outside and stores the water at an upper portion of the wall main body, and the water storage portion is formed as a cylindrical space extending in the lateral direction inside the wall main body. Or, formed as a groove that opens upward at the upper end surface of the wall main body and extends in the horizontal direction, and water flows down from the water storage portion at the top of the wall main body to the water sump portion on the base portion of the wall main body. Alternatively, the unit wall according to claim 9, wherein the unit wall is configured to be dropped. The unit wall according to claim 10, wherein the wall body is attached to a surface of the wall body such that a culture soil or a water retaining material for culturing plants receives water dripping from the water storage unit. A concrete wall formed by connecting a plurality of unit walls according to any one of claims 1 to 11 to each other.

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