JPH06264519A - Connection structure of plate material - Google Patents

Abstract

PURPOSE:To improve the connection strength and water resistance of plate materials by filling a bonding material and placing interveniently a support material into a space to be formed by bringing plate materials face to face with each other. CONSTITUTION:A plate material 1 having a flat end surface is formed, and then, a connection groove 2 is formed by a method such as digging the end surface. At this time, the inside of the connection groove 2 is made into such a shape as becomes gradually narrower toward the bottom portion from the opening portion. Moreover, a plurality of the connection groove 2 may be provided, and in order to prevent the intrusion of sea water or the like, the longitudinal end portion of the connection groove 2 may be made so as not to be passed through. When the two plate materials 1, 1 are connected to each other, a space is formed by bringing the connection grooves 2, 2 face to face with each other, and at the same time a support material 4 that is a steel plate or of carbon fiber knitting is placed interveniently into the space and simultaneously an epoxy bonding material is filled into it. The support material 4 is arranged, so connection strength is improved, and as the epoxy bonding agent is filled, the intrusion of sea water or the like is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure of inorganic board materials such as polymer-impregnated concrete board (hereinafter referred to as PIC), fiber reinforced concrete board (hereinafter referred to as PRC) and mortar board. .

[0002]

2. Description of the Related Art Conventionally, inorganic plate materials such as PIC, PRC, and mortar boards have been used in various constructions by appropriately connecting a plurality of plate materials produced in a substantially flat shape. And, the connecting part is generally one using concrete or mortar as a joining material, and in order to further improve the joining strength, it is a physically joined structure, for example, protruding at one end of one plate material. A joint is formed in the shape of a plate, a recessed joint is formed at the end of the other plate, and these are abutted and the above-mentioned joining material is interposed in the contact surface.

[0003]

However, since the above-mentioned connection structure has low strength, the strength of the entire structure was not sufficient even if a high strength material such as a PIC plate or a PRC plate was used as the plate material. In particular, the sheet piles used for construction of runways along the bay were not sufficiently strong.

When used as the sheet pile,
Although high water resistance against seawater is required, the conventional connection structure may cause cracks or damage during long-term use, and its durability is extremely unreliable. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above, and a connecting groove is formed in a connecting end face of an inorganic plate material, and two connecting members are abutted with each other to connect two plate members. The present invention relates to a plate material connecting structure characterized in that a support material, which is an iron plate or a carbon fiber knitted material, is interposed and an epoxy adhesive is filled in a space where the grooves face each other.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments of the drawings.

As the plate material applied to the connection structure of the plate materials of the present invention, inorganic materials such as PIC plate, PRC plate and mortar plate are used. You can use it. Further, the shape thereof is not particularly limited, but since it is usually formed in a flat plate shape which is easy to form, an example in which the flat plate material 1 is used will be shown below.

In the embodiment shown in FIGS. 1 to 3, a connecting groove 2 having a shape in which the inside is gradually narrowed is formed on the end surface of the plate material 1. That is, the plate material 1 has a width of 25 mm and the connecting groove 2 has an opening portion of 5 m.
m, bottom width 3 mm, and depth 8 mm. As a method of forming the connecting groove 2, a method of producing a plate material 1 in which the connecting groove 2 is formed by previously providing a projecting portion in a formwork and driving it, and forming a plate material 1 having a flat end surface There is a method of forming the connecting groove 2 by digging the end surface later, but the method is not particularly limited. Also, the shape is not particularly limited, or a plurality of connecting grooves 2 may be provided on one end surface. Further, although not particularly limited, in order to reduce the influence of intrusion of seawater or the like from the side, as in the illustrated embodiment, the connecting groove 2
Whose end in the length direction of the connector is not removed, that is, the connecting groove 2
May be formed as an elongated hole.

According to the present invention, when the two plate materials 1, 1 produced as described above are connected, the connection grooves 2, 2 of each plate material 1, 1 are connected.
3 formed by facing and abutting
A support material 4 which is an iron plate or a carbon fiber knit is interposed between the two and the epoxy adhesive 5 is filled therein.

The support member 4 has two modes, that is, it is a separate member from the plate members 1 and 1, and that it is integrated with one plate member 1 in advance. When the support material 4 is a member different from the plate materials 1 and 1, the support material 4 having a short width is arranged in the space 3 by the operator's hand, but the width of the support material 4 is the space 3
It is desirable that the distance from the bottom of one connecting groove 2 to the bottom of the other connecting groove 2 is substantially the same. In this way, the support member 4 does not move in the space 3,
The construction work can be performed easily and the strength is stable. Further, when the support member 4 is previously integrated with the one plate member 1, the support member 4 is embedded when the plate member 1 is molded, but it is configured to project from the bottom of the connection groove 2. It is desirable that the protruding length is a length that reaches the bottom of the other connecting groove 2 as described above.

Further, the epoxy adhesive 5 does not particularly specify its components and composition. However, it is desirable to adjust the solution viscosity so that it has fluidity that follows the minute irregularities of the connecting groove 2 and that it does not flow out until it hardens when it is filled in the space 3. .
In particular, when an iron plate is used as the support member 4, it is desirable that the iron plate is not exposed to the outside to cause rust. Further, the epoxy adhesive 5 is supplied not only in the connecting grooves 2 and 2 but also on the end surface of the plate material 1 (the end surface where the connecting groove 2 is not provided).

Since the above-mentioned supporting material 4 is interposed and the above-mentioned epoxy adhesive 5 is filled in the space 3 formed by butting the plate materials 1 and 1, the epoxy adhesive 5 is cured. By doing so, the plate materials 1 and 1 are integrally connected. At this time, since the epoxy adhesive 5 is supplied not only in the connecting grooves 2 and 2 but also on the end faces of the plate material 1 as described above, the end surfaces of the plate materials 1 and 1 are epoxy-bonded to each other. It will be joined via the agent 5.

The above-mentioned connecting structure of the present invention has extremely high strength because the supporting member 4 is arranged at the connecting portion. Moreover, since the epoxy-based adhesive 5 is filled in the connecting portion, it is possible to prevent the intrusion of seawater or the like. Therefore, the structure adopting such a connection structure can be a structure having high strength and high durability as a whole.

In particular, when the support member 4 as described above is embedded in the one plate member 1 in advance, the strength of the connecting portion becomes extremely high. Further, as a method for further improving the strength of the connecting portion, a method in which the depth of the connecting grooves 2 and 2 is increased and the width of the supporting member 4 (or the protruding portion from the bottom of the connecting groove 2) is increased accordingly is used. There is a method such as doing.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-mentioned embodiments, and may be carried out in any manner as long as the configuration described in the claims is not changed. You can

[0016]

As described above, in the connecting structure of the present invention, the connecting groove is formed in the connecting end surface of the inorganic plate material such as PIC, PRC, mortar plate, etc., and the connecting end surfaces of the two plate materials are butted. As a result, the space between the two connecting grooves is made to interpose a supporting material, which is a steel plate or carbon fiber knitting, and is filled with an epoxy adhesive, so compared to the one using conventional concrete or mortar as a bonding material. The strength of the connecting portion is extremely high, and the water resistance against seawater is also extremely high.

Therefore, the connecting plate material adopting the connecting structure of the present invention has high strength for a long period of time and is free from cracks and damages even when used as a sheet pile provided in construction of a runway along the coast, for example. It is possible to maintain extremely high durability without the risk of occurrence.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an example of a plate material connection structure of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is a vertical sectional view showing a connected state.

[Explanation of symbols]

 1 plate material 2 connection groove 3 space 4 support material 5 epoxy adhesive

Claims (1)

[Claims] 1. A support groove, which is an iron plate or a carbon fiber knit, is formed in a space where two connection grooves face each other by forming a connection groove on a connection end surface of an inorganic plate material and abutting the connection end surfaces of two plate materials. A connecting structure of plate materials, characterized in that a material is interposed and an epoxy adhesive is filled.