JPS5919090Y2 - Retaining fence members for concrete block walls - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a retaining wall member for a concrete block wall, and particularly to the above-mentioned member that has a reinforcing force by shortening the length of the retaining wall.

Many concrete block walls are assembled on-site, and retaining walls are installed at predetermined intervals to prevent the wall from collapsing.

This retaining wall is generally made by stacking unit hollow concrete blocks with a length of 40 cnn perpendicular to the wall and filling the space between them and the wall with mortar.

In this type of block wall, when a disaster such as an earthquake occurs, the adhesion of the mortar between the wall and the buttress loosens due to vibrations, causing the wall to separate from the buttress and collapse.

Therefore, when assembling a block wall, as shown in FIG. 7, horizontal reinforcements 18 are arranged between vertical reinforcements 17 hooked to foundation reinforcing bars 16, and concrete blocks are assembled between them.

Next, the horizontal stripes are hooked onto the vertical strips at intervals of a predetermined length,
The vertical reinforcements 19 for the retaining wall bent in a U-shape are hooked onto the hooked vertical reinforcements 17a, and the vertical reinforcements 19 for the retaining wall are set to protrude perpendicularly from the planes of the vertical and horizontal reinforcements 17 and 18 of the lattice-like shape. and vertical stripes 17a
The horizontal reinforcement bars 20 are placed between the vertical reinforcements 17a and 19, and concrete is placed in the area formed by the vertical reinforcements 17a, 19 and the width retention reinforcements 20. A retaining wall is constructed.

In this case, the length of the retaining wall, that is, the length of the wall protruding from the block wall, is generally about 40 cm.

The above-mentioned retaining wall requires the cumbersome construction method of protruding by hooking the retaining phase portions 19.20 onto predetermined longitudinal reinforcements 17a and pouring concrete into the protruding portion, and the concrete that has been poured solidifies. Considering the curing period, this requires a considerable amount of troublesome work.

The present invention is a retaining wall member that can support a concrete block wall equivalent to a retaining wall without using the above-mentioned troublesome construction method. A two-split protrusion 3 is provided at the lower end of a square column 1 to be erected, protruding perpendicularly in one direction at its lower end, and holding both vertical and horizontal bars for the concrete block at the intersection. It is a retaining wall member that protrudes in the opposite direction to the protrusion of the base at the upper part of the square pillar, and its feature is that one protrusion 4 and the other protrusion of the two halves of the protrusion. 5 is provided with a space 6 which is orthogonal to the square pillar and into which the concrete block horizontal reinforcement A can be inserted, and the tip of one of the projecting sides 4 is provided with a space 6 facing the other projecting side 5 so as to hold the horizontal reinforcement. A locking hook 7 is formed, and the tip of the other protruding side 5 is attached to the protruding side 4 at least at an interval corresponding to the diameter of the longitudinal bar so as to hold the vertical bar B for the block between it and the one protruding side. It has a structure in which the biased sides 8 are biased in a 6-shape with respect to the base plate.

9 in the drawing is a support piece that fixes between the square pillar and the base 2;
10 is a positioning mark for aligning the upper or lower sides of the concrete blocks to be stacked.

To describe the use of the restraining fence member of the present invention, as shown in Fig. 5, after arranging the foundation reinforcing bars and vertical reinforcements, concrete is placed on the foundation part, and concrete blocks C are placed on the foundation surface 11.
Stack them as usual.

A foundation for fixing the retaining fence members is made at each predetermined fence interval by concrete pouring, and the base 2 is fixed to the latter foundation surface 12 with anchor bolts 13 to erect the retaining fence members.

As is well known, the mounting position of the retaining wall member in this case is at the end of each row of stacked blocks, so the protrusion 3 protruding toward the block C side is located between one row of blocks and the row of blocks following it. It is located in between.

Arrange the stacked blocks C so that their tops are at the mark 10, and then insert the upper surface groove 14 of the next horizontal strip block Ca.
When a transverse strip A is placed on the surface, the transverse strip passes through the space 6 of the protrusion 3 while being held by the locking hook 7.

At the same time, the vertical reinforcement B placed parallel to the pillar at the erected position of the square pillar 1 is held between the eccentric side 8 and the projecting side 4, and the cutout cavity of the pair of blocks placed closely on both sides of the vertical reinforcement B is used. The completed cavity is filled with enough mortar and pea gravel concrete to complete the retaining wall.

The retaining wall member of the present invention stands as described above and is fixed at the retaining wall position of a block wall, and the vertical reinforcements B and horizontal reinforcements A are formed at the protrusion 3 at that location.
Since the concrete is packed into the orthogonal parts of the two cylinders while holding them inside the tube, both the reinforcements A and B can be filled with concrete without hooking the intersection of the vertical and horizontal reinforcements or making any other connections. and, accordingly, tightly adhere to the retaining fence member.

Therefore, the retaining wall member is integrated with the concrete block wall and prevents the block wall from falling sideways.

In this case, the base 2 can have a length of 40 cm or less, or even 25 cm or less, by selecting a steel material with appropriate strength.

Therefore, as in the past, 40 cnn was added to the inside of the fence for the retaining wall.
A stronger block wall can be built in a smaller space than a concrete block wall, which requires a space of .

When the height of the concrete block is high, a retaining wall member (FIG. 6) having projections 3a on the upper part may be used.

Although the rectangular prism 1 used in the present invention is a hollow prism, the rectangular prism is not limited to being hollow.

[Brief explanation of the drawing]

Figure 1 is a side view of the retaining wall member of the present invention, Figure 2 is a perspective view of the upper part of the same, Figure 3 is a side view of a block wall built using the retaining wall member of the present invention, and Figures 4 and 5 are of the proposed retaining wall member. Figure 4 is a plan view, Figure 5 is a side view of the same, Figure 6 is a side view of another type of restraining fence member, and Figure 7 is a concrete block. FIG. 1: Square prism, 2: Base, 3: Protrusion, 4, 5: Edge, 6
: Space, 7: Locking hook, 8: Offset side.

Claims (1)

[Scope of utility model registration request] A base 2 fixed to a foundation surface 12 via anchor bolts 13 is protruded in one direction perpendicularly from the lower end of a square column 1 to be erected, and is located at the intersection of vertical reinforcement and horizontal reinforcement for concrete blocks. A two-piece protrusion 3 that holds both parts is a retaining wall member that protrudes from the square column at the top of the square column in the opposite direction to the protrusion of the base, and the two-piece protrusion 3 that holds both parts is A space 6 is provided between one projecting side 4 and the other projecting side 5, which is perpendicular to the square column and into which a concrete block horizontal reinforcement A can be inserted. A locking hook 7 is formed on the other protruding side so as to hold it.
The tip of the other projecting side is a biased side that is biased in an O-shape with respect to the projecting side 4 by at least an interval corresponding to the diameter of the vertical reinforcement so as to hold the vertical reinforcement B for the block between it and the one projecting side. A retaining wall member for a concrete block wall characterized by the number 8.