JPH06158737A - Jointing construction for concrete member - Google Patents

Abstract

PURPOSE:To connect members to each other easily by fitting dovetail grooves arranged on the joint surfaces of the concrete members, on each other to form a vertical groove, and by filling up a vertical groove internal-space with concrete, after a vertical reinforcement is inserted into the vertical groove internal- space. CONSTITUTION:Dovetail grooves 2 formed respectively on the joint surfaces 1a of a pair of concrete members 1 to be jointed to each other are fitted to each other, and the vertical groove space 5 of a butterfly cross-sectional-area is formed. Besides, vertical reinforcements 3 are arranged in parallel with each other, and a plurality of horizontal reinforcements 4 arranged at specified intervals are connected to the vertical reinforcements 3, and a reinforcement 7 fixed with binding wires or the like is formed. Then, the reinforcement 7 is inserted into the vertical groove space 5, and after that, the space 5 is filled up with concrete 6 to be hardened, and the members 1 are integrally bonded.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint structure of concrete members for joining concrete members such as walls, ceilings, floors, walls and beams.

[0002]

2. Description of the Related Art Recently, in concrete construction,
With the development of the ALC panel construction method and the like, a construction method has been developed in which a single concrete member formed in advance in a factory is assembled at a construction site and a building is completed simply and quickly.

As a conventional connection method for such concrete members, a method of bolting concrete members joined together using L-shaped metal fittings is generally used.

[0004]

However, in the above connecting method, when there is a slight positional deviation between the concrete members to be joined, it becomes difficult to align the L-shaped metal fittings with the bolt holes. Accurate fitting of various materials was required.

In addition, since the L-shaped metal fittings only fix the concrete members on their side surfaces, the strength is insufficient.

The present invention has been made in view of the above circumstances, and does not require a high degree of accuracy in the storage of members,
Moreover, it is an object of the present invention to provide a joint structure of concrete members which has a high connection strength and can be easily assembled and connected.

[0007]

In order to solve the above-mentioned members, the joint structure of the concrete member of the present invention is
A pair of dovetail grooves 2 and 2 are formed at required locations on the joint surfaces of the concrete members 1 and 1, and at the time of joining, the dovetail grooves 2 and 2 are formed.
A vertical groove space 5 having a butterfly-shaped cross section is formed by matching each other, and vertical stripes 3 and 3 connected by a plurality of horizontal stripes 4 and 4 are respectively inserted in the vertical direction of the matched dovetail grooves 2 and 2. rear,
The gist is that the concrete 6 is filled in the vertical groove space 5 and hardened.

[0008]

The joint structure of concrete members according to the present invention can be applied to all concrete members such as concrete wall members, concrete wall members and concrete floor members, concrete floor members and concrete beam members, concrete column members and concrete wall members. It can be applied as a joint for joining.

With this construction, the joining surfaces of the concrete members 1 and 1 are brought into contact with each other to form a pair of dovetail grooves 2 and 2 formed in advance to form a vertical groove space 5 having a butterfly-shaped cross section. Then, after inserting the vertical streaks 3, 3 connected by a plurality of horizontal streaks 4, 4, ... Into the vertical groove space 5, the concrete 6 is filled and hardened. Adheres well to the concrete side wall of
By forming a hardened concrete with a butterfly-shaped cross section,
The concrete members 1, 1 are integrally connected.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 (a) is a perspective view showing a dovetail groove forming part in the joint structure of the concrete member of the present invention,
FIG. 1 (b) is a perspective view showing a state in which reinforcing bars for vertical and horizontal bars are arranged in the void portion formed by combining the dovetail grooves of FIG. 1 (a).
FIG. 1 (c) is a perspective view showing a state in which the reinforcing bar of FIG. 1 (b) is inserted and then concrete is filled, and FIG. 1 (d) is shown in FIG. 1 (c).
FIG. 9 is a sectional view taken along line AA of FIG. FIGS. 2 (a) to 2 (c) are cross-sectional views of members showing various aspects of the horizontal streaks of the joint structure of the concrete member of the present invention. FIG. 3 is a perspective view showing various application examples of the joint structure of the concrete member of the present invention.

FIG. 1 (a) shows a joint between concrete members 1 and 1 used as a wall member, and a pair of dovetail grooves 2 as shown in FIG. 2 is formed. The shape of the dovetail 2 may be a regular dovetail shape in wood processing, but if the spread angle α of the dovetail shown in FIG. 2 (a) is made too large, the corners around the dovetail will be easily damaged. However, it is necessary to have a suitable spread considering the strength of the concrete material.

Further, as shown in FIG. 1 (b), a plurality of vertical streaks 3 and 3 which are equal to or slightly shorter than the dovetail 2 are arranged in parallel and arranged at predetermined intervals on these vertical streaks 3 and 3. Of the reinforcing bars 7 by connecting the horizontal bars 4, 4, ...
To form.

When joining the concrete members 1 and 1,
As shown in Fig. 1 (b), these concrete members 1,
A vertical groove space 5 having a butterfly-shaped cross section is formed by matching the joint surfaces 1a, 2a of one, and the reinforcing bar 7 assembled in advance is inserted. At this time, the reinforcing bar 7 is assembled so that the vertical bars 3 and 3 of the reinforcing bar 7 are arranged substantially at the centers of the dovetail grooves 2 and 2 of the concrete members 1 and 1, respectively.

The horizontal stripes 4, 4, ... With respect to the vertical stripes 3, 3 arranged side by side.
As shown in FIG. 2, in addition to connecting with one horizontal bar 4, the horizontal bars 4 and 4 are connected to each connecting point in consideration of strength required for the connecting point. You may do it. Further, the vertical stripes 3 and 3 are preferably set to be slightly shorter than the length of the dovetail groove 2 in the longitudinal direction so as to have a covering thickness in the longitudinal direction.

Then, as shown in FIG. 1 (c), the concrete members 1 and 1 are joined together at their joint surfaces 1a and 1a to form a vertical groove space 5 having a butterfly-shaped cross section, and the vertical groove space 5 is formed. Concrete 6 is filled in the pair of dovetail grooves 2 and 2 in which the reinforcing bar 7 is inserted, and is cured for a predetermined time.

The joint surface 1 of the concrete members 1, 1
If a and 1a are bonded to each other through an appropriate adhesive or sealing agent, the bonding force of the concrete members 1 and 1 can be enhanced, and the permeation of water can be prevented.

According to the present invention, the joining of the concrete members 1 and 1 is completed by the above-mentioned simple method. In addition to the above-mentioned wall members, as shown in FIG. Can also be applied to joining concrete wall members and concrete floor members, and other concrete floor members and concrete beam members.

In addition to the structure of the structure of the building as described above, it can be widely applied to any concrete members that can form the dovetail groove as described above, such as the bonding of an ornament to the structure. You can

[0020]

As described above, according to the joint structure of the concrete members of the present invention, the dovetail grooves 2, 2 formed in the concrete members 1, 1 to be joined are connected by the horizontal bars 4, 4, .... By filling the concrete 6 with the vertical bars 3 and 3 as reinforcing bars, the filled concrete 6 and the concrete side walls of the dovetail grooves 2 and 2 are attached,
Since they are joined by the hardened and formed reinforced concrete having a butterfly-shaped cross section, it is possible to realize a high-strength joint structure that is excellent in integrally joining the members to be joined and the joint.

Moreover, since the concrete, which is a plastic body, is filled in the pair of dovetail grooves 2 and 2 which are in contact with each other, the dovetail grooves 2 and 2 are joined even if there is some deviation in the mating state. It is possible to prioritize the connection of the concrete members to be connected.

The joint structure for concrete members of the present invention as described above is not limited to any concrete member as long as it can form a pair of dovetail grooves in which reinforcing bars can be arranged between the concrete members. It can be applied as a bonded joint and can be widely applied to the construction method.

[Brief description of drawings]

FIG. 1 (a) is a perspective view showing a dovetail groove forming part in a joint structure of a concrete member of the present invention.
FIG. 1 (b) is a perspective view showing a state in which vertical and horizontal reinforcing bars are arranged in the void portion formed by combining the dovetail grooves of FIG. 1 (a).
1 (b) is a perspective view showing a state where concrete is filled after inserting the reinforcing bar of FIG. 1 (b), and FIG. 1 (d) is A of FIG. 1 (c).
FIG.

2 (a) to 2 (c) are cross-sectional views of members showing various aspects of the horizontal bar of the joint structure of the concrete member of the present invention.

FIG. 3 is a perspective view showing various application examples of the joint structure of the concrete member of the present invention.

[Explanation of sign]

DESCRIPTION OF SYMBOLS 1 ... Concrete member, 2 ... Dovetail groove, 3 ... Vertical line, 4 ... Horizontal line, 5 ... Vertical groove space, 6 ... Filled concrete.

Claims (1)

[Claims] Claims: 1. A pair of dovetail grooves 2 and 2 are formed at required locations on the joint surface of concrete members 1 and 1, and the dovetail grooves 2 and 2 are aligned at the time of joining to form a butterfly-shaped cross section. After the vertical groove spaces 5 are formed, and the vertical grooves 3, 3 connected by a plurality of horizontal stripes 4, 4, ... Are respectively inserted in the longitudinal direction of the matching dovetail grooves 2, 2, the vertical groove spaces 5 are inserted in the vertical groove spaces 5. A joint structure of concrete members, characterized by being filled with concrete 6 and cured.