JPH027995Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a joining structure for concrete structures that can be easily and accurately joined.

(Prior Art) Conventionally, as a structure for joining a main body and a subordinate body of a concrete structure, there is one shown in, for example, Japanese Utility Model Application Publication No. 144053/1983. This idea provides a female screw part on one side of the upper edge of the U-shaped drainage block (main body), and a bulking block body (base body) with a through hole in the appropriate place, and a bolt is passed through the through hole to thread the screw part. It is screwed together and tightened to make it one piece.

(Problems to be solved by the invention) Conventional joining structures for concrete structures require considerable precision in the form and position of the female thread in the main body and the through hole in the slave body facing it. In addition to being expensive, it was difficult to align the female screw part and the through hole or tighten the bolts during actual work, making it difficult to work.

(Purpose of the invention) In view of the above-mentioned problems, the purpose of the invention is to provide a joining structure for concrete structures that can be joined simply and accurately.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention consists of a main body of concrete structure and a subordinate body of concrete structure connected to the main body. A truncated conical pin insertion hole having an inner diameter slightly larger than the outer diameter of the insertion pin is provided, and an inverted truncated conical pin insertion hole having the same diameter and extending coaxially as the pin insertion hole is provided at a position corresponding to the pin insertion hole on the joint surface of the slave body. A through hole is provided, a pin is inserted through the through hole across the main body and the slave body, and the area around the pin is filled with a bonding material.

(Function) According to the present invention, the pin and the binding material can be joined by inserting them into the through hole and the pin insertion hole from one side of the slave.

(Example) The drawing embodies the present invention as a box garvert, where 10 is a main body of a concrete structure with a U-shaped cross section, and 20 is a top plate of the concrete structure as a sub-body divided from the main body 10. A pin insertion hole 11 having an inner diameter slightly larger than the outer diameter of the insertion pin 30 is provided at a predetermined position on the joint surface of the main body 10, and a pin insertion hole 11 is provided at a position corresponding to the pin insertion hole on the joint surface of the slave body 20. A through hole 21 is provided which has the same diameter and extends coaxially. The pin insertion hole 11 has a truncated conical shape with an inner diameter increasing toward the bottom, so that the binding material 40 can be filled accurately.
Further, the through hole 21 has an inverted truncated cone shape with an inner diameter increasing toward the top, making it easy and accurate to insert and fill the pin 30 or the bonding material. The pin 30 is made of molybdenum steel, for example, and has a bonding material 4.
For example, resin mortar, strong plastic resin, etc. are used as the material.

Since the box garvert of the present invention has the above-mentioned configuration, the slave body 20 is placed on the main body 10, and the pin 30 is inserted through the through hole 21 across the body 10 and the slave body 20, and the binding material 40 is placed around the pin 30. filling,
By solidifying, both can be reliably joined. Further, by dividing the box into the main body and the slave body in this manner, it is possible to simplify the formwork structure and improve productivity or workability, and furthermore, it becomes easy to remove air bubbles from the inner surface of the box during manufacturing.

(Effect of the invention) As explained above, according to the invention, the invention consists of a main body of concrete structure and a subordinate body of concrete structure joined to the main body, and an insertion pin is inserted into the outside of the main body at a predetermined position on the joint surface of the main body. A truncated conical pin insertion hole having an inner diameter slightly larger than the diameter is provided, and an inverted truncated conical through hole having the same diameter as the pin insertion hole and extending coaxially with the pin insertion hole is provided at a position corresponding to the pin insertion hole on the joint surface of the slave body. , Since the pin is inserted through the through hole across the main body and the slave, and the area around it is filled with the binding material, the pin and the binding material are inserted into the through hole and the pin insertion hole from one side of the slave and filled. In addition to being able to join by hand, the inner diameter of both holes is larger than that of the pin, so high precision manufacturing is not required, reducing costs, and positioning is easy during actual work. Improves workability. Furthermore, since the pin insertion hole has a truncated conical shape, it is possible to fill the binding material accurately, and the through hole has an inverted truncated conical shape, making it easy and accurate to insert and fill the pin or binding material. There are advantages such as:

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway perspective view, and FIG. 2 is a partially cutaway side view. 10...Main body, 11...Pin insertion hole, 20...Subordinate body,
21... Through hole, 30... Pin, 40... Binding material.

Claims (1)

[Scope of utility model registration request] It consists of a main body of concrete structure and a slave body of concrete structure joined to the main body, and a truncated conical pin insertion hole with an inner diameter slightly larger than the outer diameter of the insertion pin is provided at a predetermined position on the joint surface of the main body, and the slave body is made of a concrete structure. A through hole in the shape of an inverted truncated cone having the same diameter as the pin insertion hole and extending coaxially is provided at a position corresponding to the pin insertion hole on the joint surface of the body, and the pin is inserted through the through hole across the main body and the slave body. A joint structure for a concrete structure characterized by filling the periphery with a binding material.