JPS6023549A - Joint structure of building wall part - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a joint structure of a building wall.

When constructing side walls, ceiling walls, and other walls of buildings,
Conventionally, wood frame construction method 2 gypsum bow F direct pasting method, or wood brick installation method, etc. were used.

Various building boards such as gypsum board, plywood, asbestos slate board, and calcium silicate board are installed and putty is applied to the joints of the building boards. A construction method was used to finish the interior by applying finishing materials such as wall materials to the walls.

However, in this type of construction method, if the building boards expand or contract due to the adverse effects of humidity or temperature, or if the building is subjected to vibration, the joints of the many building boards that make up the wall may be damaged. Cracks are likely to occur at the joints of buildings.Especially in recent years, lightweight steel frame construction methods and veneers and boards that integrate insulation and building materials have been increasingly adopted in order to reduce the weight of building materials and reduce labor costs. As a result, the cracking phenomenon in the joint area is caused by -
layer started to occur frequently.

Therefore, in the above-mentioned conventional construction method, paper tape, cheesecloth tape, synthetic fiber tape, or the like is used as the joint tape when constructing the joints.

The joint tape is embedded in putty to reinforce the joints of building board joints and to prevent cracks in the joints.

However, according to the company, the joint structure using the above joint tape is
Although it has a corresponding effect on tensile loads, it has no effect on compressive loads.

In addition, it tends to cause so-called swelling of the joints and peeling of the putty, which is undesirable not only in terms of strength but also in terms of aesthetic appearance as a base material.

Therefore, various experiments were repeated using 2-elastic caulking materials, flexible sealing materials, and high-hardness or high-strength sealing materials to prevent the above-mentioned problems, but sufficient deformation resistance was not obtained at the joints. Also, the thickness of the joint layer cannot exceed the thickness of the board, so the joint layer must be formed thinly, so the necessary strength cannot be obtained, and the adhesion and adhesion with finishing materials are poor. However, the above-mentioned conventional problems have not been fundamentally solved.

The purpose of the present invention is to provide a joint structure for building walls that fundamentally eliminates the above-mentioned conventional drawbacks. One volume-invariant layer in the concave groove.

A joint structure for a building wall, characterized in that a reinforcing member having a multilayer structure with a variable volume layer having a deformation relaxation rate greater than the deformation rate of the building board is fitted and fixed integrally. .

The specific embodiments of the joint structure of a building wall according to the present invention will be explained in more detail with reference to the drawings as follows. (1
) and (2) are building boards used as base materials to form each desired part of a building, and these building boards (1) and (2) are installed in large numbers in parallel. , or a calcium silicate plate. Note that the materials of the building boards (1) and (2) are not limited to those mentioned above.

(3) is a reinforcing member provided at the joint between the adjacent building boards (1) and (2). This reinforcing member (3) consists of a volume-invariable layer (4) whose volume does not change even when deformed by applying an external force, and a volume-variable layer (5) whose volume itself changes when deformed by applying an external force. and the volume-invariant layer (
4) and the variable volume layer (5), an adhesive layer is formed between them to form a fixed multilayer structure. As the volume-invariant layer (4), for example, a plastic plate, an iron plate, a wooden plate, or the like is used, and the volume of these plates remains unchanged even if they are deformed. Further, the volume variable layer (5)
For example, it is made of a spongy sponge material or a foamable synthetic resin material, and has the property that when it is deformed, its volume changes at the same time. It is necessary as a precondition that the deformation relaxation rate of the first variable volume layer (5) is greater than the deformation rate of the building boards (1) and (2).

The above-mentioned reinforcing member (3) has a volume constant layer (4) as mentioned above.
It has a multi-layer structure consisting of a variable volume layer (5) and a variable volume layer (5), each of which is fitted into a groove (6) formed at the joint between adjacent building boards (1) and (2), and is bonded by an adhesive layer. It is in a fixed state and has a cross-sectional shape and size suitable for the groove (6). That is, the reinforcing member (3) has a rectangular plate-like cross section as shown in FIGS. 1 and 2, the reinforcing member (3) has a triangular plate-like cross section as shown in FIGS. 3 and 4, and the reinforcing member (3) has a triangular plate-like cross section as shown in FIGS. As shown in the figure, the reinforcing member (3) has a T-shaped cross section.

As shown in FIGS. 7, 8, and 11, the reinforcing member (3) has a deformed T-shaped cross section, the reinforcing member (3) has an H-shaped cross section as shown in FIG. 9, and FIG. As shown in the figure, the reinforcing member (3) with a deformed H-shaped cross section, etc.
), and all of them fall under the reinforcing member (3) of the present invention.

It should be noted that various basic forms or four different applied forms of the above-mentioned reinforcing member (3) are conceivable, and all of these are included in the gist of the present invention. For example, from the basic configuration shown in FIG. 1, to the embodiment shown in FIG.
5), such as the embodiment shown in FIG. 14 in which the back surface is formed into a wavy shape, all of these applied forms are included as part of the male side of the present invention.

Further, in all of the embodiments shown above, the reinforcing member (3) has a two-layer structure of one volume constant layer (4) and one volume variable layer (5), as shown in FIG. 15, for example.

The reinforcing member may have a three-layer structure in which the volume constant layer (4) and the volume variable layer (5) are alternately superposed, or may have another multilayer structure such as four layers or five layers.

The parts near the joining ends of the building boards (1) and (2) are fixed to the wooden shaft (8) serving as the foundation material by nailing (7), or by using adhesive. (1) Fix (2) and the wooden shaft (8). still.

There are no specific questions regarding the means of fixing building boards (1) and (2).

Further, the bonding interface between the reinforcing member (3) and the groove portion (6) formed at the joint of the building boards (1) and (2) is fixed by an adhesive layer formed using a construction adhesive. has been done.

Note that the joints of the building boards (1) and (2) used as base materials are formed at the same position as the surfaces of the building boards (1) and (2), and in order to make the surfaces smooth, For example, FIGS. 2, 4, and 6.

As shown in FIG. 8 or FIG. 10, the surface of the reinforcing member (3) and other predetermined surroundings may be filled and coated with putty (9) if necessary. If the smooth shape of the joint is not a problem, apply putty (9) in a heaped manner on the surface of the joint so as to cover the surface of the reinforcing member (3) as shown in Figure 11. Also good. As shown in Figures 11 and 12 (1
0) is a covering material such as paper, and this covering material (10) is pasted on the surface of the reinforcing member (3), but this covering material (10) is suitable for construction of joints. It is attached at any time by one worker, and there is no question as to whether or not the ffl covering material (10) exists.

In the above configuration, the construction procedure of the joint structure of the building wall according to the present invention will be explained as follows.

First, grooves (6) are formed at the joint edges of the building boards (1) and (2).
It is processed and formed into an appropriate shape to form a joint portion of the shape. The joints are formed as a base material in order to firmly connect the joints of the respective desired parts and to make the surfaces smooth.

Even if there is a dimensional error between the building boards (1) and (2) or between the building boards (1 and 2) and the reinforcing member (3), the gaps can be filled with filler adhesive or putty. The smoothness of the wall surface can be maintained. Furthermore, architectural boards (1) (2)
) should be done in advance in the factory, or
Or it can be done by on-site processing.

Next, the building boards (1) and (2), whose edges have been processed and formed into a joint shape, are attached to the wooden shaft (8) as a base material using nails (7), construction adhesive, or other bonding means. The adhesives are placed side by side and fixed. Then, each adjacent building board (1) (
The reinforcing member (3) is inserted into the concave groove (6) formed at the joint of (2).
).

Concave grooves (6) of building boards (1) (2) and reinforcing members (3)
A construction adhesive is applied to the bonding interface between the back surface of the variable volume layer (5) and the side peripheral surface of the reinforcing member (3) to form an adhesive layer, and the bonded portion is bonded over the entire surface.

In addition, in the embodiments shown in FIGS. 9, 10, and 12, the fixing work of building boards (1) (2) and reinforcing members (3) are
Assembly and installation will be done at the same time as construction.

Next, as described above, putty (9) is filled as necessary to form the joints at positions flush with the surfaces of the building boards (1) and (2) and to maintain the smoothness of the joints. In addition, if there are any steps or irregularities in the building boards (1), (2) or joints, they are scraped off or treated with putty to form a smooth base. However, the above putty (9) is not necessarily required.

Finally, the walls of the building are completed by applying a finishing material such as wallpaper, paint, wall covering material, or sprayed wall material to the smooth base surface.

Since the joint structure of a building wall according to the present invention has the above-mentioned configuration, it can significantly exhibit various excellent effects as described below.

a) A reinforcing member consisting of a multilayer structure consisting of two volume constant layers and a volume variable layer was fitted into the concave grooves formed at the joints of the building boards arranged side by side and fixed together, so that the tensile strength and Compressive strength and bending strength were significantly improved. Therefore, even if the building board expands and contracts under the influence of temperature and humidity, or is subjected to strong vibrations, there is little risk of cracks occurring at the joints.

In addition, there is no risk of swelling or peeling of the reinforcing members that make up the joints, so the smoothness of the joints can be maintained over time, and it is not only aesthetically pleasing as a base material.
It is easy to apply finishing materials.

b) In particular, reinforcing members of multi-layer structure are formed of a volume-invariable layer and a volume-variable layer, and the deformation relaxation rate of the volume-variable layer is greater than the deformation rate of the building board. Even if the building board expands and contracts to produce a crank, the width of the crack is approximately 0.1 to 0.5 mm, and this degree of expansion and contraction of the building board can be sufficiently alleviated by the variable volume layer.

C) Also, due to the multi-layered structure of a constant volume layer and a variable volume layer, the strength of the two constant volume layers is smaller than the strength of the building board as the base material.

It has characteristics that can sufficiently cope with the deformation of building boards. Therefore, there is no need to carefully select the material for the volume-invariant layer; for example, a plastic plate or a steel plate.

Alternatively, a wide variety of board materials such as wooden boards can be used.

d) Furthermore, the deformability of the variable volume layer that comes into contact with the concave grooves at the joints of the building boards absorbs finishing errors in the joints of the building boards, so even if the finishing accuracy of the concave grooves is low, it can be reinforced. The installation of the components does not have any negative effect on the construction.

e) Even when various external forces are applied to the building board.

The acting force acting on the building board is once absorbed by the variable volume layer and then transmitted to the constant volume layer, which is extremely effective in preventing the reinforcing member from breaking.

f) The variable volume layer is made of, for example, a spongy sponge material or a foamable synthetic resin material, so it is easy to process and mold, and it can be easily shaped to fit the joint shape of the building board as the base. Easy to adapt.

g) Airtightness can be maintained at the joint by the variable volume layer of the reinforcing member. Therefore, it is not only effective in improving the heat insulation and sound insulation properties of joint areas.

It is possible to prevent the spread of fire in the event of a fire,
It is also effective as a fire prevention measure.

[Brief explanation of drawings]

1st F! ! FIGS. J to 15 are cross-sectional views of main parts showing respective embodiments of the joint structure according to the present invention. (1) and (2) are building boards, and (3) are reinforcing members. (4) is a constant volume layer, (5) is a variable volume layer, (6)
is a concave groove. Patent applicant Yayoi Chemical Industry Co., Ltd.

Claims (1)

[Claims] 1. From a multi-layer structure consisting of nine volume-invariant layers and a volume-variable layer having a deformation relaxation rate greater than the deformation rate of the building boards in a concave groove formed at the joint of building boards arranged side by side. A joint structure for a building wall, characterized by fitting a reinforcing member and fixing it integrally. 2. The joint structure of a building wall according to claim 1, wherein a plastic plate is used as the volume-invariant layer. 3. The joint structure of a building wall according to claim 1, wherein a wooden board is used as the volume-invariant layer. 4. A joint structure for a building wall according to claim 1, wherein a spongy sponge material is used as the volume variable layer. 5. The joint structure of a building wall according to claim 1, wherein a foamable synthetic resin material is used as the variable volume layer.