JPH0461140B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a plate-like member made of reinforced concrete using prefabricated concrete blocks.

BACKGROUND ART Recently, construction methods that use concrete blocks as formwork have been increasing in the production of reinforced concrete plate members. However, the concrete blocks used for these plate-like members are
All of them were integrally formed of quadrilateral plate-like bodies and connecting plates that connected them. In manufacturing plate-shaped members using these conventional concrete blocks, a certain level of strength is required for the connecting plates of the concrete blocks, so the notches are made extremely large and the cement concrete filling is dense and homogeneous. It was difficult to make it a reality.
In addition, in conventional concrete blocks, the plate-shaped bodies and the connecting plates that connect them are integrally molded, so deformation and damage occur during the demolding stage after molding, and there are many cases of damage during transportation. Occurred.

The manufacturing method of the present invention provides a strong plate-like member that can be filled with dense and homogeneous cement concrete, which has been difficult in the past.

It consists of two parallelogram plate-like bodies and a metal connecting rod that connects them, and the plate-like body has several protrusions on the inner surface of its central part, each having a connecting part with a fitting groove. An assembled concrete block in which both ends of the metal connecting rods are inserted into the connecting portions of the plate-shaped bodies to connect them, and are joined with adhesive, and the metal connecting rods are arranged in a well-balanced manner in the center. This is then bonded to the foundation using a non-shrinkage cement adhesive or resin mortar, and reinforcing reinforcing bars are placed while masonry is sequentially carried out vertically and laterally. Or, when the strength of the joint made of resin mortar reaches the strength required for the formwork, expanded cement concrete is poured and filled from the top of the masonry, using prefabricated concrete blocks.

Next, the present invention will be explained with reference to the drawings. Fig. 1 is a perspective view showing an embodiment of the prefabricated concrete block of the present invention at the time of completion of assembly. This prefabricated concrete block has two parallelogram plate bodies 1 each having a convex part 2 formed integrally with the inner surface of the plate body 1, and a metal connecting rod 4 on both ends of the convex part 2. It is provided with a connecting part 3 that connects with. When connecting the plate-shaped body 1 and the metal connecting rod 4, for example, a fitting groove for fitting the end of the metal connecting rod 4 is provided in the connecting portion 3, so that the end of the metal connecting rod 4 is connected. It is necessary that the metal connecting rod does not easily fall off from the connecting portion 3, and it is also necessary that the metal connecting rod be installed in a well-balanced manner in the center of the concrete block.

After connecting the plate-shaped body 1 and the metal connecting rod 4, the assembled concrete block is completed by joining them with adhesive. This adhesive is used to strengthen the connecting portion 3.

FIG. 2 is a sectional view showing an embodiment of a plate-shaped member manufactured by the manufacturing method of the present invention. That is, once the fabrication of the prefabricated concrete blocks is completed, they are joined onto the foundation 5 using non-shrinkage cement adhesive or resin mortar 6, and reinforcing reinforcing bars 7 are arranged while masonry is sequentially carried out vertically and laterally. do. When the strength of the joints of assembled concrete blocks reaches the strength required for formwork,
Expanded cement concrete 8 is poured and filled from the top of the masonry. expanded cement concrete 8
When pouring and filling, the inside of the formwork formed by the prefabricated concrete blocks is almost hollow because it consists only of the metal connecting rods 4 and reinforcing bars 7 of the prefabricated concrete blocks. Since the expanded cement concrete 8 is uniformly filled into every corner of the formwork, it is possible to manufacture a plate-like member of uniform quality similar to that made of general reinforced concrete.

Since the present invention has the above configuration,
When manufacturing plate-shaped members, the degree of freedom of reinforcing reinforcing bars increases and the structural strength is significantly improved.
The use of metal connecting rods in the prefabricated concrete blocks increases the tensile strength by approximately 50% compared to conventional concrete blocks, which greatly reduces the chance of damage to the plate-shaped members.

Furthermore, since the metal connection part is well-balanced in the center of the concrete block, when the expanded cement concrete is poured, pressure is uniformly applied, so there is no problem of lateral pressure, and stability is achieved.

Furthermore, since the prefabricated concrete block of the present invention can be easily assembled at the construction site when the plate-shaped member is being constructed, it is possible to disassemble and transport each component during the transportation process, which improves transportation efficiency. Strengthen. In addition, surface processing of the plate-shaped body is easy, and several types of prefabricated concrete blocks can be produced by appropriately changing the length of the metal connecting rods, making it possible to create concrete blocks that are not normally constructed using reinforced concrete. It is more economical and superior in terms of labor saving compared to construction methods.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the prefabricated concrete block of the present invention, and FIG. 2 is a sectional view showing one embodiment of the manufactured plate member. DESCRIPTION OF SYMBOLS 1... Plate-shaped body, 2... Convex part, 3... Connecting part, 4
...Metal connecting rod, 5...Foundation, 6...Non-shrinkage cement adhesive or resin mortar, 7...Reinforcement reinforcing bar, 8...Expansible cement concrete.

Claims (1)

[Claims] 1 Consists of two parallelogram plate-like bodies and a metal connecting rod connecting them, and the plate-like body has several convex parts each having a connecting part with a fitting groove on the inner surface of the central part. Prefabricated concrete in which the metal connecting rods are provided in a protruding manner, both ends of the metal connecting rods are inserted into the connecting parts of the plate-shaped bodies, and the metal connecting rods are connected with adhesive, and the metal connecting rods are arranged in a well-balanced manner in the center. A block is made, and it is bonded to the foundation using non-shrinkage cement adhesive or resin mortar, and reinforcing reinforcing bars are placed while masonry is sequentially carried out vertically and laterally, and the above-mentioned non-shrinkage cement adhesive is used. A manufacturing method for plate-like members using prefabricated concrete blocks characterized by pouring and filling expanded cement concrete from the top of the masonry when the strength of joints made of cement or resin mortar reaches the strength required for formwork. .