JP3008387B2 - Foundation concrete block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a wooden structure, an ALC
The present invention relates to the construction of a block concrete foundation for constructing a foundation such as a plate, a steel outer wall, a block wall, and the like.

[0002]

2. Description of the Related Art Conventionally, a technique for constructing a foundation for a house or the like by using a concrete foundation obtained by blocking the foundation has been known.
See, for example, JP-A-3-116550. JP-A-61
In the technique described in JP-A-38028, rubble stone is laid in a groove, concrete for leveling is poured, and while the leveling concrete is semi-dry, a concrete block for foundation is placed on the leveling concrete. After standing in parallel,
The concrete block for foundation is buried in a semi-buried state with mortar, and the groove that is provided vertically on both sides of the rising part of the concrete block for foundation and becomes circular in plan when placed side by side is also buried with mortar. By doing so, it is configured to build the foundation. Also,
In the technique described in Japanese Utility Model Application Laid-Open No. 63-116550, a foundation is constructed by connecting and fixing a foundation concrete block in which bolts are embedded in advance by plates and nuts.

[0003]

However, Japanese Patent Application Laid-Open No.
In the technique described in JP-A-38028, the fixing between the concrete blocks for foundation is performed by using mortar, so that a sufficient bonding force between the concrete blocks for foundation cannot be obtained. In addition, it is necessary to wait for the concrete for leveling to be in a semi-dry state, since the concrete for leveling is poured after laying the chestnut stone in the groove, and the construction period is long and inefficient in constructing the foundation. . Since leveling concrete or mortar is used to fix the concrete block for foundation, it takes time and effort and the work becomes complicated. The said application 63
In the technique described in -116550, since the concrete blocks for foundation are connected and fixed using a plate, a nut, or the like, the work is complicated and the work is complicated.

[0004]

The means for solving the above problems are constituted as follows. In Claim 1, the block main body part 2 which is a rising part in the block concrete foundation block.
Are formed on both side surfaces of the base portion 3, and semicircular concave portions 3 c are formed on both side surfaces of the base portion 3 serving as a base portion in plan view, and the longitudinal grooves 2 b and the concave portions 3 c are formed into annular engagement. The tool 5 is provided at predetermined intervals, the engaging tool 5 is formed by bending a single rod-shaped member, forming both ends in an annular shape, and fixing them by welding or the like to form the distal end portions 5a. The concrete block 1 is embedded in the main body 2 and the base 3 of the concrete block 1 in the left-right direction, and is configured so that the annularly formed tip portions 5a project from both side surfaces of the concrete block 1 for foundation. In the second aspect, the concrete block for foundation according to the first aspect is attached to the distal end portion 5a of the annular engagement tool 5.
Are arranged in a row while matching the vertical position.
And a fixing material 12 is filled in the vertical groove 2b and the concave portion 3c so that the concrete block 1 for foundation can be connected and fixed.
A semicircular concave portion 2c is formed in a portion where the distal end portion 5a is located when viewed from the front. In the third aspect, the concrete block for foundation according to the first aspect is annularly engaged.
A plurality of tools 5 are arranged continuously while the tip 5a of the tool 5 is aligned with the vertical position.
Then, an anchor bolt / rebar is inserted into the tip 5a ,
The vertical groove 2b and the concave portion 3c are filled with the fixing material 12 so that the concrete block 1 for foundation can be connected and fixed, and a portion of the base 3 where the tip portion 5a is located is filled with a horizontal groove for filling the fixing material 12. 3b.

[0005]

Next, an embodiment of the present invention will be described. FIG. 1 is a perspective view of a concrete block for foundation,
FIG. 2 is a side sectional view showing an installed state of the concrete block for foundation, FIG. 3 is a perspective view showing the shape of the bottom of the concrete block for foundation, FIG. 4 is a perspective view showing another shape of the bottom of the concrete block for foundation. 5 is a perspective view showing another shape of the bottom of the concrete block for foundation, FIG. 6 is a plan view of the concrete block for foundation, FIG. 7 is a front view of the same, and FIG. 9 is a perspective view showing an articulated state of the concrete block for foundation, FIG. 10 is a partial plan sectional view showing a connected and fixed state of the concrete block for foundation, and FIG.
Is a partial side view, FIG. 12 is a side view showing a state in which an anchor bolt is inserted into an engaging device of a concrete block for foundation, FIG. 13 is a plan view of the same, FIG. 14 is a perspective view of the same,
FIG. 15 is a perspective view showing a state in which the connecting portion between the concrete blocks for foundation is filled with an adhesive, FIG. 16 is a perspective view of a concrete block for foundation used in a corner portion, and FIG.
Is a perspective view showing the connection state of the concrete block for corner foundation, FIG. 18 is a plan view of the same, FIG. 19 is a partial plan view showing the connection state of the concrete block for foundation at the T-shaped part, and FIG. FIG. 21 is a plan view of a concrete block for foundation used for a section and a cross section, and FIG. 21 is a plan view showing another embodiment of a concrete block for foundation.

Referring to FIG. 1, the structure of a concrete block for foundation will be described. The concrete block for foundation 1 is formed integrally with a base portion (base portion) 3 that protrudes from the block main body portion 2 by a desired width only in the front-rear direction of the lower end of the block main body portion 2 that is a rising portion having a desired height. At the same time, a vent hole is formed in the upper part of the block main body in the front-rear direction. Further, the foundation concrete block 1 can be transported by hanging it with a crane or the like through a wire, a rope, or the like through the ventilation hole of the block main body 2. Further, it is also possible to pass a pipe through the ventilation hole of the block main body 2. The concrete block for foundation 1 is made into a block so that a foundation such as a wooden structure, an ALC plate, an outer wall made of a steel frame, a block wall or the like can be easily constructed, and has a size that can be carried by hand.

A ceiling groove 2a is provided on the upper surface of the block body 2 of the concrete block 1 for foundation.
The mortar for leveling can be poured. In the ceiling groove 2a, when the leveling mortar is not poured, the ceiling groove 2a secures air permeability and can prevent corrosion of columns and the like disposed on the concrete block 1 for foundation. On both side surfaces of the block main body 2 and the base 3, a vertical groove 2b and a horizontal groove 3b for filling a bonding material 12 such as cement bond are provided, and the vertical groove 2b and the horizontal groove 3b are used for foundation. Engaging tools 5 for connecting the concrete blocks 1 are provided at predetermined intervals. A semicircular concave portion 2c is provided in a portion of the block body portion 2 where the engaging tool 5 is located, and a semicircular concave portion 3c is also provided in the base portion 3 in a plan view. Have been. The concrete blocks for foundation 1 can be connected to each other by inserting an anchor bolt / rebar 10 described later into the engaging tool 5. A projection 4 is provided on the bottom of the base 3.

[0008] Referring to FIG. 2, a procedure for constructing the concrete block for foundation 1 will be described. First, a groove 6 is cut at a location where a foundation is to be constructed, and sand or gravel is spread over the bottom of the groove 6 to form a sand layer 8. The stability of the concrete block for foundation 1 is ensured by mounting the concrete block for foundation 1 on the sand layer 8 and applying vibrations by an electric breaker or the like to make the protrusions 4 of the concrete block for foundation 1 penetrate into the sand layer 8. In addition, the density of the sand layer 8 is made uniform by the vibration of the electric breaker, and the stability between the bottom of the groove 6 and the sand layer 8 and the ground reaction force (ground pressure) can be improved. After that, the anchoring bolt / reinforcing bar 10 is inserted into the engagement members 5, 5,... Of the matched foundation concrete blocks 1, and the adjacent foundation concrete blocks 1 are connected. Are fixed by connecting the vertical groove 2b, the horizontal groove 3b, and the concave portions 2c, 3c with a fixing material 12 such as cement bond.
Then, by burying back to the position of the ground 7, a foundation made of the concrete block for foundation 1 can be constructed.

In FIG. 3, three protrusions 4 of the concrete block for foundation 1 are provided on the bottom surface of the bottom 3 in parallel in the left-right direction so as to be able to penetrate the sand layer 8. By making the protrusions 4 infiltrate into the sand layer 8, the protrusions 4 hinder the fluidity of the sand near the bottom surface of the concrete block for foundation 1, so that the sand near the bottom surface of the concrete block for foundation 1 is stabilized, The ground reaction force to the foundation concrete block 1 is increased, and the stability of the foundation concrete block 1 is improved. In addition, the protrusion 4 may penetrate into the sand layer 8 and increase the contact pressure of the concrete block 1 for foundation in the sand layer 8 so long as the concrete block 1 for foundation can be stabilized. Not as long. For example, as shown in FIG. 4, on the lower surface of the base 3 of the concrete block 1 for foundation,
A configuration may be adopted in which two substantially E-shaped projections 4a are arranged side by side, and the flow of sand or gravel in the front and rear and right and left directions near the base 3 is obstructed to improve the contact pressure. Also, as shown in FIG. 5, on the lower surface of the base 3 of the concrete block for foundation 1, six protrusions 4b are arranged at regular intervals to reduce the weight of the concrete block 1 for foundation. A configuration may be adopted in which the flow of sand or gravel in the front, rear, left and right directions near 3 is obstructed to improve the contact pressure.

Next, the structure of the engaging member 5 provided on the foundation concrete block 1 will be described. As shown in FIGS. 6, 7, and 8, the engagement member 5 is formed by bending a rod-shaped member such as a single wire, and both ends of the rod-shaped member are formed in an annular shape and fixed by welding or the like. By doing so, the distal end portion 5a is configured. The engaging member 5 is embedded in the main body 2 and the base 3 of the foundation concrete block 1 in the left-right direction, and is configured by projecting the tip 5a from both side surfaces of the foundation concrete block 1. In the above configuration, as shown in FIG. 7, the left and right ends of the engaging tool 5 are provided so that the top and bottom ends of the right and left ends of the engaging tool 5 are different from each other. Is configured to be located at a position higher than the distal end portion 5a by the dimension d. By positioning the lower side of the protruding position of the engaging tool 5 of another connected concrete foundation block 1 on the higher side of the protruding position of the engaging tool 5 of the foundation concrete block 1, the engaging tools 5 interfere with each other. I try not to. Therefore, when the concrete blocks for foundation 1 are arranged side by side on the left and right, the tip portions 5a of the engagement tools 5 are configured not to contact each other. Further, the dimension d need only be such that the distal end portions 5a of the engagement tool 5 do not contact each other, and can be changed according to the purpose. Are fixed by welding to the vertical streak and the horizontal streak in the main body 2 and the pedestal 3, so that the strength of the concrete block 1 for foundation is improved and the engagement
It is configured to improve the strength of the device. The horizontal streak is provided in the base 3 in a direction orthogonal to the engaging members 5, and is fixed by welding to three engaging members 5, 5, 5 provided on the base 3. In addition, the vertical streak is welded and fixed to the main body 2 and the three engaging members 5, 5.5 of the base 3 immediately below the main body 2. As shown in FIG. 8, the distal end portion 5 a of the engagement tool 5 has a configuration in which approximately half formed in an annular shape protrudes from the concrete block for foundation 1 to ensure the durability of the engagement tool 5. .

Referring to FIGS. 9 to 15, a procedure for connecting and fixing the concrete block for foundation 1 will be described. A concrete block for foundation 1 is juxtaposed, and an anchor bolt / reinforcing bar 10 is inserted into a portion of a ring where the tips 5a and 5a of the engaging tools 5 are vertically overlapped.
a · 5a to be erected and connected to the concrete block 1 for foundation. Then, a tape 11 is applied so as to close a gap formed in the connecting portion of the concrete block for foundation 1, and a fixing material 12 such as cement bond is filled in the connecting portion to connect and fix the concrete block for foundation 1. Thus, the foundation can be built. In the above configuration, as shown in FIG. 12, by providing a gap in a ring portion where the distal end portions 5a and 5a of the engagement tool 5 are vertically overlapped,
It is possible to easily insert the reinforcing rod 10 serving also as the anchor bolt.

As shown in FIG. 11, a bolt 13 is welded and fixed to the lower engaging portion 5 of the engaging member 5 provided on the base 3 of the concrete block 1 for foundation.
The concrete block 1.1 for foundation can be connected and fixed by screwing the nut 14 with the engaging portion 5 at a high position aligned with the bolt 13.

Next, in FIG. 12, FIG. 13 and FIG.
A procedure for inserting the anchor bolt / rebar 10 into the engagement tool 5 will be described. Lower end 1 of anchor bolt 10
0a is bent in an L-shape. The lower end 10a of the anchor bolt / rebar 10 is rotated in the longitudinal direction of the anchor bolt / rebar 10 in order from the tip 5a of the engaging tool 5 above the main body 2 of the connected concrete block 1 for foundation. By inserting while engaging the
Can be inserted into a ring formed by overlapping the top and bottom portions 5a. Also, the tip of the anchor bolt and rebar 10 is screwed off and can be used as an anchor bolt.

With the above construction, the position of the distal end 5a of the engaging member 5 of the connected concrete block for foundation 1 is shifted, and the distal end portion 5a of the engaging member 5 is attached to the ring formed by vertically overlapping. Even when it is difficult to insert the anchor bolt / bar 10, the lower end 1 of the anchor bolt / bar 10
0a is inserted into the tip 5a of the engagement tool 5 located above,
From this state, the operation of rotating the anchor bolt / rebar 10 in the longitudinal direction of the anchor bolt / rebar 10 and inserting the lower end 10a into the distal end portion 5a of the engaging tool 5 located below is performed in order. , Foundation concrete block 1
Can be moved, and the distance between the concrete blocks 1.1 for connection can be reduced. For this reason, after the concrete block for foundation 1 is roughly installed, the reinforcing rods 10 also serving as anchor bolts are connected to the concrete block for foundation 1.1.
It can be connected while adjusting the distance between the concrete blocks 1.1 for foundation.

Next, in FIG. 16, FIG. 17 and FIG.
A concrete block for corner foundation for constructing a corner foundation will be described. The corner base concrete block 21 is composed of a base 23 having a substantially trapezoidal shape in a plan view and a main body 22 vertically erected on the base 23. The main body 22 and the base 23
Is embedded with an engagement member 25. The base 23 is formed in a trapezoidal shape in a plan view.
An engaging tool 25 is buried in parallel inside the base 23. One of the protruding side surfaces of the distal end portion 25a of the engagement tool 25 is formed at a right angle to the parallel formed side surface, and the other is formed at 45 ° to the parallel formed side surface.
And 135 °. Also, on the upper surface of the main body 22 of the concrete block 21 for corner foundation,
A top groove 22a is provided, and the leveling mortar can be poured. When the leveling mortar is not poured into the ceiling groove 22a, ventilation is ensured by the ceiling groove 22a, and the concrete block 2
Corrosion of pillars and the like disposed on 1 can be prevented.

Concrete block 2 for corner foundation
A vertical groove 22b and a horizontal groove 23b for filling the adhesive material are provided on the side surfaces of the main body 22 and the base 23 of the first unit 22. The vertical groove 22b and the horizontal groove 23b are used to connect a concrete block for corner foundation. Are provided. The left and right sides of the main body 22 have semicircular recesses 22c.
The concave portion 22 c is provided before and after the engaging tool 25 disposed on the main body 22. Also, base 2
3 are also provided with semicircular recesses 23c at both left and right sides, and the recesses 23c are provided at the upper and lower positions of the engagement tool 25 disposed on the base 23. A projection 24 is provided on the bottom surface of the base 23, and the side surface of the main body 22 on the oblique side of the base 23 coincides with the oblique side of the base 23. Therefore, the corner base concrete blocks 21 having a symmetrical shape are connected to each other,
The base of the corner portion can be constructed by inserting the anchor bolt / reinforcing bar 10 into the tip portion 25a of the fifth member 5 and connecting and fixing the same. Also, as shown in FIG. 18, a horizontal line and a vertical line are arranged on the base 23 and the main body 22 of the concrete block 21 for corner foundation, and are fixed by welding to the engaging tools 25, 25, respectively. The strength of the corner part foundation concrete block 21 and the engagement tool 25 is improved.

As shown in FIG. 19, when constructing the foundation of the T-shaped part, the concrete block for foundation 1 is arranged so as to be orthogonal to the two concrete blocks for foundation 1.1 arranged side by side. The concrete block for foundation 1 perpendicular to the concrete block for foundation 1.1 provided is connected by a connecting tool 39. The connecting tool 3
At one end of 9 is a side-by-side foundation concrete block 1
An anchor bolt / rebar 10 is inserted together with the engaging tool 5 of the block main body 2 of the first block 2 and the other end of the connecting tool 39 is also inserted into the anchor bolt / rebar 10. I have. In addition, the fixing of the connector 39 on the side of the concrete block for foundation 1 arranged at an orthogonal position may be performed by bolts and nuts, or an insertable iron bar may be used. Then, a form is formed by a tape or a plate between the juxtaposed foundation concrete blocks 1 and 1 and between the juxtaposed foundation concrete blocks 1 and 1 and the foundation concrete blocks 1 arranged at an orthogonal position. The base of the T-shaped portion can be constructed by filling the portion with a fixing material such as cement bond or mortar.

Also, as shown in FIG. 20, a concrete block 31 for corner section foundation, a concrete block 32 for T-shaped section foundation, and a concrete block 3 for cross section foundation.
By configuring 3, a foundation having various shapes can be constructed together with the foundation concrete block 1. The configuration of the connecting surface of the corner part concrete block 31, the T-shaped part concrete block 32, and the cross part concrete block 33 is the same as that of the foundation concrete block 1. Therefore, the concrete blocks for foundations 1, 31, 32,
By combining 33, the base of various shapes can be constructed.

Further, as shown in FIG. 21, as in the case of a concrete block 41 for a foundation, the connecting surface in plan view may have a straight surface on one side and a concave surface on the other side. The other configuration, such as the protrusion of the engaging tool 5 on the straight surface and the concave surface, is the same as the configuration of the concrete block for foundation 1 described above. It is the same that the base can be constructed by connecting and fixing the blocks 41.

[0020]

As described above, the present invention has the following advantages. As described in claim 1, in the block concrete block for foundation, vertical grooves 2b are formed on both side surfaces of the block main body portion 2 which is a rising portion, and semicircular in plan view on both side surfaces of the base portion 3 which is a base portion. Concave 3
c, and annular engaging members 5 are provided at predetermined intervals in the longitudinal grooves 2b and the concave portions 3c. The engaging members 5 are formed by bending a single rod-shaped member and forming both ends in an annular shape. The distal end portions 5a are formed by fixing them by welding or the like, and are embedded in the left-right direction inside the main body portion 2 and the base portion 3 of the foundation concrete block 1, and are formed in the annular shape.
a.5a are configured to protrude from both side surfaces of the concrete block for foundation 1 so that the engaging tools 5,5.
The main body portion 2 and the base portion 3 are welded and fixed to the vertical and horizontal streaks, so that the strength of the concrete block for foundation 1 is improved and the strength of the engagement tool 5 is improved. In addition, the distal end portion 5a of the engagement tool 5 has a configuration in which approximately half formed in an annular shape protrudes from the foundation concrete block 1 to ensure the durability of the engagement tool 5.

According to a second aspect of the present invention, the tip end portion 5a of the annular engaging member 5 is connected to the foundation concrete block according to the first aspect.
A plurality of bars are connected to each other while being aligned with the upper and lower positions. An anchor bolt / reinforcing bar is inserted into the tip portion 5a, and the vertical groove 2b and the concave portion 3c are filled with the fixing material 12 to connect the concrete block 1 for foundation. It can be fixed, and the end of the block body 2
In a portion where the end portion 5a is located, a semicircular recess 2
By configuring c, it is possible to easily position the foundation concrete block simply by matching the opposed annular engaging members, and to the annular engaging member via the anchor bolt and reinforcing bar inserted in the longitudinal direction. The connection can be firmly established, and the foundation can be easily constructed. Also, since there is no need to separately provide anchor bolts, the number of processes is reduced,
Saves time. Therefore, as a DIY material, a concrete block for foundation can be provided, and even if there is no skilled technique, there is no need for labor and time, and the conventional concrete is cast and the foundation is constructed. It does not require human resources of various industries such as earthwork, carpentry, and reinforcing steelwork, and an amateur can easily build the foundation.

According to a third aspect of the present invention, the tip end portion 5a of the annular engaging member 5 is connected to the concrete block for foundation according to the first aspect.
A plurality of bars are connected to each other while being aligned with the upper and lower positions. An anchor bolt / reinforcing bar is inserted into the tip portion 5a, and the vertical groove 2b and the concave portion 3c are filled with the fixing material 12 to connect the concrete block 1 for foundation. It can be fixed, and the tip 5a of the base 3
In the located portion, a lateral groove 3 for filling the fixing material 12 is provided.
b, the lateral groove 3b is also filled with the fixing material.
That it is that can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of a concrete block for foundation.

FIG. 2 is a side sectional view showing an installed state of a concrete block for foundation.

FIG. 3 is a perspective view showing the shape of the bottom of a concrete block for foundation.

FIG. 4 is a perspective view showing another shape of the bottom of the concrete block for foundation.

FIG. 5 is a perspective view showing another shape of the bottom of the concrete block for foundation.

FIG. 6 is a plan view of a concrete block for foundation.

FIG. 7 is a front view of the same.

FIG. 8 is a plan cross-sectional view showing a part of an engaging device of the concrete block for foundation.

FIG. 9 is a perspective view showing an articulated state of a concrete block for foundation.

FIG. 10 is a partial cross-sectional plan view showing a connected and fixed state of a concrete block for foundation.

FIG. 11 is a partial side view of the same.

FIG. 12 is a side view showing a state in which an anchor bolt is inserted into an engaging tool of a foundation concrete block.

FIG. 13 is a plan view of the same.

FIG. 14 is a perspective view of the same.

FIG. 15 is a perspective view showing a state in which a connecting portion between the concrete blocks for foundation is filled with a fixing material.

FIG. 16 is a perspective view of a concrete block for foundation used in a corner portion.

FIG. 17 is a perspective view showing an articulated state of a corner part concrete block;

FIG. 18 is a plan view of the same.

FIG. 19 is a partial plan view showing an articulated state of a foundation concrete block at a T-shaped portion.

FIG. 20 is a plan view of a foundation concrete block used for a corner portion, a T-shaped portion, and a cross portion.

FIG. 21 is a plan view showing an example of another concrete block for foundation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foundation concrete block 2 Block main body part 3 Base part 4 Projection part 5 Engagement tool 5 10 Reinforcing bar combined with an anchor bolt

Claims (3)

(57) [Claims] 1. In a block concrete block for foundation, vertical grooves 2b are formed on both side surfaces of a block main body portion 2 which is a rising portion, and semicircular in plan view on both side surfaces of a base portion 3 which is a base portion. Of the vertical groove 2c.
b and concave portions 3c are provided with annular engaging members 5 at predetermined intervals, and the engaging members 5 are formed by bending one rod-shaped member, forming both ends in an annular shape, and fixing them by welding or the like. Are formed in the main body 2 and the base 3 of the concrete block for foundation 1 in the left-right direction, and the annularly formed distal ends 5a are formed on both sides of the concrete block 1 for foundation. A concrete block for foundation characterized by being configured to protrude from a surface. 2. The foundation concrete block according to claim 1 , wherein the distal end portion 5a of the annular engaging member 5 coincides with the vertical position.
A plurality of reinforcing bars are inserted into the distal end portion 5a, and a fixing material 12 is filled in the vertical groove 2b and the concave portion 3c so that the concrete block 1 for foundation can be connected and fixed. A concrete block for foundation, characterized in that a semicircular concave portion 2c is formed in a portion where the front end portion 5a is located in a front view. 3. The foundation concrete block according to claim 1 , wherein the tip 5a of the annular engaging member 5 is aligned with the vertical position.
A plurality of reinforcing bars are inserted into the distal end portion 5a, and a fixing material 12 is filled in the vertical groove 2b and the concave portion 3c so that the concrete block for foundation 1 can be connected and fixed. At the position where the tip 5a is located
Is a concrete block for foundation, wherein a lateral groove 3b for filling the fixing material 12 is formed.