JP2847421B2 - Masonry method of concrete block - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a masonry method for concrete blocks mainly performed for constructing a foundation beam.

2. Description of the Related Art In a solid foundation, a method of constructing a foundation beam using a formwork concrete block has been considered. Third
The figure shows the state during the construction of a foundation using such a formwork concrete block.
Is pressure-resistant concrete forming a solid portion, and formwork concrete blocks 2 are stacked in three steps on the upper surface of the pressure-resistant concrete 1. In the pressure-resistant concrete 1, a vertical bar 3 whose lower end is buried in advance is projected upward, and the vertical bar 3 is arranged in the form concrete block 2 so as to be disposed in the form concrete block 2. 2 and concrete blocks 2
Between the horizontal streaks 4 and 5 in the left-right direction of the wall, concrete is filled in the formwork concrete block 2 in this state, and a foundation beam integrated with the concrete block 2 is constructed. In this case, as shown in FIG.
Is a kind of loop whose upper end is bent in a square,
In the gap 8 between the upper end of the looped vertical bar 3 and the connecting portion 6 of the uppermost concrete block 2, it is necessary to interpose the upper bar 5 which is the uppermost horizontal bar. I have.

FIG. 4 shows a conventional formwork concrete block 2 and a method of masonrying the same. Formwork concrete block 2
Comprises a pair of face shells 7, 7 of the same shape facing each other as shown in the figure, and a pair of connecting portions 6, 6 connecting the face shells 7, 7. In this case, the vertical streaks 3 which are respectively provided upright are arranged so as to pass through the spaces between the connecting portions 6, 6. For this purpose, as shown in FIG. It is necessary to masonry while inserting the vertical streak 3 into the space, and install the necessary intermediate horizontal streak 4 each time the blocks 2 of each stage are stacked, and finally, the upper end streak 5
Is inserted from the end in the wall direction into the gap 8 and attached.

In U.S. Pat. No. 4,577,447, a block in which a connecting portion is divided at an intermediate portion in a wall thickness direction is stacked from both right and left sides of a reinforcing bar.

Problems to be Solved by the Invention As described above, in the related art, when stacking the formwork concrete blocks 2, any concrete block 2 in any step must be lifted up to the vertical bar 3.
Moreover, since it is necessary to install the vertical streaks 3 so as to be inserted between the connecting portions 6, if such stacking is performed manually, the fatigue of the worker increases and the working time also increases. There are drawbacks. In addition, horizontal stripes 4 and 5 are blocks 2
Must be carried out after the stacking, the arrangement work is divided into two, and the arrangement of the arrangement worker becomes troublesome, and the labor cost also increases. Not only that, the uppermost upper end bar 5 is a concrete block 2
After completion of stacking, it must be inserted from the end in the direction of the wall, but since this type of foundation beam is always bent not in a single straight line but in an L-shape or T-shape, Insertion was not possible, and eventually the foundation itself was impossible.

Further, according to the invention of the U.S. Patent, the blocks can be stacked from the side, and therefore, the horizontal streaks can also be arranged in advance, but since the face shells on both sides of the wall are separated, There is a risk of collapse due to lateral pressure when filling concrete.

Means for Solving the Problems In order to solve the above problems, the present invention connects a pair of face shells facing each other with one connecting portion, and the width of one face shell in the left-right direction of the wall and the other face shell A concrete block formed with a width smaller than the width of the reinforcing bar and the gap between the reinforcing bars is placed on the side of the gap between the reinforcing bars in such a manner that the face shell having the smaller width and the face shell having a larger width alternate alternately in the horizontal direction. It is characterized by inserting a shell at the head and masonry.

Further, according to the invention of the U.S. Patent, the blocks can be stacked from the side, and therefore, the horizontal streaks can also be arranged in advance, but since the face shells on both sides of the wall are separated, There is a risk of collapse due to lateral pressure when filling concrete.

Operation According to the configuration of the present invention, it is possible to masonry by inserting from the side of the small width face shell into the space between the reinforcing bars, and it is possible to work even when the horizontal bars are arranged in advance.

Embodiment In FIGS. 1 and 2 showing an embodiment of the present invention, FIG.
Formwork concrete block 11 used in this embodiment
Has a rectangular face shell 12 that is long in the left-right direction of the wall and a rectangular face shell 13 that is long in the vertical direction. Are integrally formed. Although the heights of the face shells 12 and 13 are formed to be the same, the width in the lateral direction of the wall is such that one 13 has a small width and the other 12 has a large width. On the other hand, at the portion corresponding to the foundation beam of the pressure-resistant concrete 15 constituting the solid portion, as described above, a number of vertical streaks 16, 16 having the upper end bent in a square loop shape, are spaced apart in the wall direction. Buried in advance. Further, the vertical streaks 16 include a pair of horizontal streaks 17, 17 in the wall direction interposed between the first and second stages with respect to the blocks 11 stacked in three stages, and an upper portion of the uppermost stage block 11. A pair of horizontal streaks or upper streaks 18, 18 arranged in the wall direction,
Each bar is welded to the longitudinal bar 16 in advance and arranged. in this case,
The upper end bar 18 is welded to the inside of the vertical bar 16 at a corner portion bent in a square loop shape.

Then, as shown in FIG. 1, the concrete block 11 formed as described above firstly attaches one block 11 to the reinforcing bar 1 from the side with the small width face shell 13 at the top.
6, 17, 18 and installed, and then another block 11 is inserted next to the opposite side, similarly with the narrow face shell 13 at the top, and installed next to it. By repeating, the face shells 13 having a small width and the face shells 12 having a large width are stacked alternately in the left-right direction of the wall.

As shown in FIG. 2, at the corner portion bent into an L-shape, the side surface of the small width face shell 13 in the block 11 of one linear portion A abuts the end face of the large face shell 12 in the other linear portion. Then, an L-shaped block plate 19 is provided at the cut portion on the outer surface on the opposite side and is closed. Also, in the T-shaped corner portion, the end face of one large face shell 12 at the end of one straight portion C is brought into contact with the side surface of the other straight portion B, and the small face shell at the end of the one straight portion C is similarly formed. 13 end face and the other straight portion B
A flat block plate 20 is interposed and closed at the cut portion between the side surface. Further, the face shells 12 and 13 on one side of the other straight portion B are cut out, and the horizontal streaks 17 and 18 of the one straight portion protrude from the notch 21 so that the other side streak is formed.
It is connected to 17, 18.

Advantageous Effects of the Invention As described above, according to the present invention, even when the vertical and horizontal streaks, particularly the upper-end streaks, are arranged first, the narrow face shell is inserted between the reinforcing bars,
Can be stacked from the side. Therefore, it is possible to rebar reinforcement at once, and it is not necessary to lift the concrete block upward and install it while inserting vertical bars into the space between the connecting parts, reducing the fatigue of workers,
In addition, there is an effect that labor costs for arrangement and stacking can be reduced. And since it is not necessary to insert the upper end bar from the end in the wall direction, there is an effect that it is possible to construct with a form concrete block even if the foundation is bent into an L shape or a T shape. . In addition, since the blocks are not divided in the direction of the wall thickness, there is no danger of collapse due to lateral pressure when the concrete is poured.Therefore, for example, the joints of each block are filled with mortar and interconnected. There is an advantage that there is no need to keep it.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a method of stacking blocks in an embodiment of the present invention, FIG. 2 is a plan view of a main part in a state where blocks are stacked, and FIG. 3 is a diagram of a foundation beam using a formwork concrete block. FIG. 4 is a longitudinal sectional view showing a state before concrete filling, and FIG. 4 is a perspective view showing a method of masonrying blocks in a conventional foundation beam. 11 ... formwork concrete block, 12, 13 ... face shell, 14 ... connecting part, 16, 17, 18 ... rebar.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP 50-21526 (JP, A) JP 30-5044 (JP, Y1) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02D 27/01 102 E04C 1/14

Claims (1)

(57) [Claims] A pair of face shells facing each other are connected by one connecting portion, and the width of one face shell in the left-right direction is made smaller than the width of the other face shell and the gap between the reinforcing bars. Masonry by inserting the narrow face shell at the top from both sides of the gap between the reinforcing bars so that the narrow face shell and the large face shell alternate in the horizontal direction. Masonry method of concrete block characterized by the following.