JP6852340B2 - Joined structure and its manufacturing method - Google Patents

Description

The present invention relates to a joining structure in which a flat plate-shaped face material and a steel member are joined, and a method for manufacturing the same.

Examples of this type of bonding structure that has been conventionally used include the configurations shown in Patent Document 1 and the like below. FIG. 13 is an explanatory diagram showing a conventional joint structure. As shown in FIG. 13, in the conventional joint structure, a flat plate-shaped face material 1 such as a floor material is placed on the joint surface 20 of the steel member 200 coated with the adhesive member 25 made of an adhesive. The steel member 200 and the face material 1 are joined via the adhesive member 25. The joint surface 20 is a flat surface.

Japanese Unexamined Patent Publication No. 2016-33299

In the conventional joint structure as described above, since the adhesive member 25 is applied to the joint surface 20 made of a flat surface, a gap 25a corresponding to the thickness of the adhesive member 25 is formed between the joint surface 20 and the face material 1. .. The size of the gap between the joint surface 20 and the face material 1 varies depending on the amount of the adhesive member 25 applied to the joint surface 20. As shown in FIG. 14, when the face material 1 is supported by a plurality of steel members 200, if the amount of the adhesive member 25 applied to the joint surface 20 of each steel member 200 varies, the facing materials are adjacent to each other. There is a risk that a step 25b may occur between the two, or the face material 1 may be tilted.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a joint structure capable of avoiding a gap between a joint surface of a steel member and a face material. It is to provide the manufacturing method.

The joint structure according to the present invention includes a flat plate-shaped face material and a steel member having a joint surface facing the face material, and the joint surface is provided with a recess in which an adhesive member is housed. The steel member is joined to the face material by the adhesive member, and the joint surface excluding the recess is in contact with the face material .

The method for manufacturing a joint structure according to the present invention is to prepare a steel member having a joint surface provided with a recess and containing an adhesive member in the recess, and to use a face material having a flat joint surface. This includes arranging the steel member and the face material so as to face each other, joining the steel member to the face material by an adhesive member , and bringing the joint surface excluding the recess into contact with the face material .

According to the joining structure of the present invention and the manufacturing method thereof, the steel member is joined to the face material by the adhesive member housed in the recess of the joint surface, so that there is a gap between the joint surface of the steel member and the face material. Can be avoided.

It is explanatory drawing which shows the bonding structure by Embodiment 1 of this invention. It is a perspective view which shows the steel member of FIG. It is explanatory drawing which shows the state which the plurality of steel members of Embodiment 1 are joined to a plurality of face materials. It is explanatory drawing for demonstrating the difference in the adhesive area of an adhesive member depending on the presence or absence of a recess of FIG. It is explanatory drawing which shows the steel member used for the joint structure by Embodiment 2 of this invention. It is explanatory drawing which shows the steel member used for the joint structure by Embodiment 3 of this invention. It is explanatory drawing which shows the deformation example of the steel member of FIG. It is explanatory drawing which shows the steel member used for the joint structure by Embodiment 4 of this invention. It is a perspective view which shows the steel member used for the joint structure by Embodiment 5 of this invention. It is a perspective view which shows the deformation example of the steel member of FIG. It is a perspective view which shows the steel member used for the joint structure by Embodiment 6 of this invention. It is a perspective view which shows the steel member used for the joint structure by Embodiment 7 of this invention. It is explanatory drawing which shows the conventional joining structure. It is explanatory drawing which shows the state in which a plurality of conventional steel members are joined to a plurality of face materials.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.
Embodiment 1.
FIG. 1 is an explanatory view showing a joint structure according to the first embodiment of the present invention, and FIG. 2 is a perspective view showing a steel member of FIG. As shown in FIG. 1, the joint structure of the present embodiment includes a face material 1 and a steel member 2 joined to the face material 1.

The face material 1 is a flat plate-like member such as a floor material, a ceiling material, a roof material, or a wall material.

The steel member 2 is a member having a joint surface 20 facing the face material 1. The steel member 2 of the present embodiment is composed of a longitudinal H-shaped steel having a web 21, a lower flange 22, and an upper flange 23. The joint surface 20 is composed of an upper surface (outer surface) of the upper flange 23.

A recess 24 is provided in the joint surface 20 of the steel member 2. The recess 24 of the present embodiment is composed of a pair of grooves 240 extending in the longitudinal direction 2a of the steel member 2 as particularly shown in FIG. Each groove 240 has a U-shaped cross section having a side wall 24a extending from the joint surface 20 and a bottom surface 24b connecting the lower ends of the side wall 24a, and is separated from each other so as to sandwich the extension surface 21a of the web 21. It is arranged on the upper surface of the upper flange 23.

An adhesive member 25 is housed inside each groove 240 (recess 24). In other words, the adhesive member 25 does not protrude from each groove 240 and intervene between the joint surface 20 and the face material 1 when the face material 1 and the steel member 2 are joined as shown in FIG. It is provided in each groove 240. As the adhesive member 25, for example, a gel-like, jelly-like or liquid adhesive, double-sided tape or the like can be used. Although FIG. 2 shows that the adhesive member 25 is accommodated in only one of the two grooves 240, the adhesive member 25 is accommodated in each groove 240 as shown in FIG.

In the joint structure of FIG. 1, a steel member 2 in which the adhesive member 25 is housed in the recess 24 (groove 240) is prepared, and the steel member 2 and the face material 1 are provided so that the joint surface 20 faces the face material 1. Can be manufactured by arranging and joining the steel member 2 with the face material 1 by the adhesive member 25. That is, the steel member 2 is joined to the face material 1 by the adhesive member 25 housed in each groove 240. When the steel member 2 is joined to the face material 1 by the adhesive member 25, the joint surface 20 excluding the recess 24 is in contact with the face material 1.

Next, the action of the steel member 2 being joined to the face material 1 by the adhesive member 25 in the recess 24 will be described. FIG. 3 is an explanatory view showing a state in which the plurality of steel members 2 of the first embodiment are joined to the plurality of face materials 1. In the conventional configuration (FIG. 14), since the recess for accommodating the adhesive member 25 is not provided on the upper surface of the upper flange 23, a gap corresponding to the thickness of the adhesive member 25 is formed between the joint surface 20 and the face material 1. Therefore, if the amount of the adhesive member 25 applied to the upper surface of each steel member 200 is different, such as the steel member 200 located on the leftmost side and the steel member 200 located on the rightmost side in FIG. 14, the adhesive member 25 Due to the difference in the size of the gap 25a corresponding to the thickness of the steel member 200, the height of the face material 1 bonded to each steel member 200 may be different. However, by using the steel member 2 of the present embodiment, it is possible to avoid the occurrence of such a gap, and a step 25b is generated between the adjacent face materials 1 or the face material 1 is tilted. The risk can be reduced. Further, when the recess for accommodating the adhesive member 25 is not provided on the upper surface of the upper flange 23, the adhesive member 25 hangs 25c from the upper surface of the steel member 200 as shown in the steel member 200 located at the center of FIG. However, by using the steel member 2 of the present embodiment, the sagging 25c of the adhesive member 25 can be avoided. Further, since the pair of grooves 240 in which the adhesive member 25 is housed are arranged on the upper surface of the upper flange 23 so as to sandwich the extension surface 21a of the web 21, they are arranged on the upper surface of the upper flange 23, as shown in the center of FIG. The steel member 2 can be joined to the two face materials so as to straddle the adjacent face materials 1. That is, adjacent face materials 1 can be connected via the steel member 2.

Next, FIG. 4 is an explanatory view for explaining the difference in the adhesive area of the adhesive member 25 depending on the presence or absence of the recess 24 in FIG. 1, and FIG. 4 (a) is the steel member 2 of the present embodiment. As shown above, the adhesive member 25 is housed in the recess 24, and FIG. 4B shows an adhesive member 25 having the same width on the upper flange 23 of the steel member 200 having no recess 24. Indicates the state.

When the adhesive member 25 is an adhesive, the adhesive member 25 applied in the recess 24 is adhered to the entire inner surface of the recess 24. More specifically, the height of the side wall 24a (see FIG. 2) of the recess 24 is H, the width of the bottom surface 24b (see FIG. 2) of the recess 24 is B, and the recess 24 along the longitudinal direction 2a of the steel member 2 When the extending length of is L, the adhesive area of the adhesive member 25 to the recess 24 is represented by (H + B + H) × L.

On the other hand, when the adhesive member 25 is an adhesive, as shown in FIG. 4B, the upper flange 23 of the steel member 200 having no recess 24 is coated with the same width as in FIG. 4A. The bonded member 25 is bonded to the upper flange 23 with an area of B × L. That is, by accommodating the adhesive member 25 in the recess 24, a larger adhesive force can be obtained as compared with the case where the adhesive member 25 is not accommodated in the recess 24, and the face material 1 and the steel member 2 can be combined. Can be joined more reliably. Further, by accommodating the adhesive member 25 in the recess 24, it is possible to suppress the variation in the coating amount of the adhesive member 25.

In such a joining structure and its manufacturing method, since the steel member 2 is joined to the face material 1 by the adhesive member 25 housed in the recess 24 of the joint surface 20, the joint surface 20 and the face material of the steel member 2 are joined. It is possible to prevent a gap from being formed between the two. As a result, it is possible to reduce the possibility that a step is generated between the adjacent face materials 1 or that the face materials 1 are tilted.

Further, since the recess 24 includes a pair of grooves 240 extending in the longitudinal direction of the steel member 2, the steel member 2 can be more reliably joined to the face member 1 in the longitudinal direction of the steel member 2. Further, the adhesive member 25 can be continuously arranged in the longitudinal direction of the steel member 2, and the time and effort for arranging the adhesive member 25 can be reduced.

Further, since the recess 24 includes a pair of grooves 240 formed on the outer surface of the upper flange 23 separated from each other so as to sandwich the extension surface 21a of the web 21, the two surfaces straddle the adjacent face materials 1. The steel member 2 can be joined to the material 1.

Embodiment 2.
FIG. 5 is an explanatory view showing a steel member 2 used in the joint structure according to the second embodiment of the present invention. In the first embodiment, it has been described that the recesses 24 (pair of grooves 240) are provided only in the upper flange 23 of the steel member 2 made of H-shaped steel, but as shown in FIG. 5, the recesses 24 (pair of grooves 240) are provided. 240) may be further provided on the lower surface (outer surface) of the lower flange 22 of the steel member 2 made of H-shaped steel. Such a configuration can be used when the steel member 2 is joined to a pair of face materials arranged in parallel with each other separated from each other. Further, the steel member 2 and the face material 1 may be joined by using only one of the recess 24 of the upper flange 23 and the recess 24 of the lower flange 22. The recess 24 of the upper flange 23 and the recess 24 of the lower flange 22 may have different widths and extending lengths. Other configurations are the same as those in the first embodiment.

Embodiment 3.
FIG. 6 is an explanatory view showing a steel member 2 used in the joint structure according to the third embodiment of the present invention, and FIG. 7 is an explanatory view showing a modified example of the steel member 2 of FIG. In the first and second embodiments, each groove 240 constituting the recess 24 has a U-shaped cross section having a side wall 24a and a bottom surface 24b. However, as shown in FIGS. 6 and 7, the recess 24 has a cross section. Each groove 240 constituting the above may be a groove having a V-shaped cross section having no bottom surface 24b. As shown in FIG. 7, a groove 240 having a V-shaped cross section may be provided on both the lower flange 22 and the upper flange 23, as in the second embodiment. Further, the shapes of the grooves of the lower flange 22 and the upper flange 23 do not have to be the same, and a groove having a U-shaped cross section is provided on one of the lower flange 22 and the upper flange 23, and a groove having a V-shaped cross section is provided on the other. You can also do it. Other configurations are the same as those in the first embodiment.

Embodiment 4.
FIG. 8 is an explanatory view showing a steel member 2 used in the joint structure according to the fourth embodiment of the present invention. In the first embodiment, it has been described that the recess 24 is formed by a pair of grooves 240 arranged on the outer surface of the upper flange 23 so as to sandwich the extension surface 21a of the web 21 so as to be separated from each other. The number of grooves may be provided on the upper flange 23. The recess 24 of the fourth embodiment further includes a central groove 241. The central groove 241 is a groove arranged so that the extension surface 21a of the web 21 passes through the inside. In other words, a central protrusion 241a corresponding to the central groove 241 is provided on the lower surface (inner surface) of the upper flange 23 on the web 21 side, and the web 21 is joined to the top of the central protrusion 241a. Other configurations are the same as those in the first embodiment.

When the distance between the pair of grooves 240 arranged so as to sandwich the extension surface 21a of the web 21 is narrow, the web 21 and the upper flange 23 are due to the presence of convex portions located on the opposite sides of the grooves 240. It may be difficult to join with. By providing the central groove 241 arranged so that the extension surface 21a of the web 21 passes through the inside, the web 21 and the upper flange 23 can be joined more easily. Further, by providing a larger number of grooves on the upper flange 23, the joint strength between the face material 1 and the steel member 2 can be improved.

In the embodiment of the fourth embodiment, the pair of grooves 240 arranged on the outer surface of the upper flange 23 so as to sandwich the extension surface of the web 21 may be omitted.

Embodiment 5.
FIG. 9 is a perspective view showing a steel member 2 used in the joint structure according to the fifth embodiment of the present invention, and FIG. 10 is a perspective view showing a modified example of the steel member 2 of FIG. Although it has been described that the steel member 2 is made of H-shaped steel in the first to fourth embodiments, the steel member 2 may be made of the channel steel shown in FIG. Even in the steel member 2 made of channel steel, the joint surface 20 is formed by the outer surface of the upper flange 23, and the recess 24 may be provided in the joint surface 20. As shown in FIG. 9, the recess 24 may be composed of a pair of grooves 240 extending in the longitudinal direction 2a of the steel member 2. As shown in FIG. 10, the steel member 2 may be composed of channel steel with a lip. Other configurations are the same as those in the first embodiment.

Embodiment 6.
FIG. 11 is a perspective view showing a steel member 2 used in the joint structure according to the sixth embodiment of the present invention. Although it has been described that the steel member 2 is made of H-shaped steel in the first to fourth embodiments, the steel member 2 may be made of the hat-shaped steel shown in FIG. Even in the steel member 2 made of hat-shaped steel, the joint surface 20 is formed by the outer surface of the top wall 230, and the recess 24 may be provided in the joint surface 20. Other configurations are the same as those in the first embodiment.

Embodiment 7.
FIG. 12 is a perspective view showing a steel member 2 used in the joint structure according to the seventh embodiment of the present invention. Although it has been described that the steel member 2 is made of H-shaped steel in the first to fourth embodiments, the steel member 2 may be made of the square steel pipe shown in FIG. Even in the steel member 2 made of a square steel pipe, the joint surface 20 is formed by the outer surface of the peripheral wall 231, and the concave portion 24 may be provided in the joint surface 20. Other configurations are the same as those in the first embodiment.

In addition, for example, the lower flange 22 of the steel member 2 made of the channel steel of the fifth embodiment is provided with the recess 24 as in the second embodiment, and the fifth to seventh embodiments and the second to fourth embodiments are described. It can be carried out in appropriate combinations.

Further, in the first to seventh embodiments, it has been described that the recesses 24 are composed of two or three grooves 240 and 241. However, the number of grooves forming the recesses is arbitrary. Further, the recess does not necessarily have to be formed by a groove extending in the longitudinal direction of the steel member, and the recess may be formed by another aspect such as a plurality of circular recesses in a plan view.

1 Face material 2 Steel member 20 Joint surface 21 Web 22 Lower flange (flange)
23 Upper flange (flange)
24 Recesses 240 Grooves 241 Central Grooves

Claims (9)

Flat plate-shaped face material and
A steel member having a joint surface facing the face material is provided.
The joint surface is provided with a recess in which an adhesive member is housed.
The steel member is joined to the face material by the adhesive member, and the joint surface excluding the recess is in contact with the face material .
Joined structure. The recess comprises at least one groove extending in the longitudinal direction of the steel member.
The joining structure according to claim 1. The steel member is an H-section steel.
The joining structure according to claim 1 or 2. The recess comprises a pair of grooves arranged on the outer surface of the flange spaced apart from each other so as to sandwich an extension surface of the web.
The joining structure according to claim 3. The recess includes a central groove arranged such that the extension surface of the web passes through the inside.
The joining structure according to claim 3 or 4. The steel member is channel steel.
The joining structure according to claim 1 or 2. The steel member is a hat-shaped steel.
The joining structure according to claim 1 or 2. The steel member is a square steel pipe.
The joining structure according to claim 1 or 2. Prepare a steel member having a joint surface provided with a recess and containing an adhesive member in the recess, and the steel member and the steel member so that the joint surface faces a flat plate-shaped face material. A method for manufacturing a joint structure, which comprises arranging a face material, joining the steel member to the face material by the adhesive member , and bringing the joint surface excluding the recess into contact with the face material.

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