JP2023161323A - Structure of corner part of building and column cover - Google Patents

Abstract

To provide a structure of a corner part of a building and a column cover capable of suppressing exfoliation or the like of an exterior part over a long period of time.SOLUTION: A structure 1 of a corner part where a first exterior wall surface 3 and a second exterior wall surface 4 of a building cross each other includes a column 5 arranged in the corner part, a column cover 6 covering the column 5, a base material 7 arranged outside the column cover 6 and fixed to the column cover 6, and an exterior part 8 arranged outside the base material 7 and forming a first exterior wall surface 3 and a second exterior wall surface 4, and the column cover 6 is integrally provided with a first member 17 extending along the first exterior wall surface 3 and a second member 18 extending along the second exterior wall surface 4, and at least one of the first member 17 and the second member 18 is provided with a reference surface 19 fixed to the base material 7 and a first recessed part 20 recessed from the reference surface 19 to the inside of the building and vertically extending, a first ventilation part 22 extending vertically is formed between the first recessed part 20 and the substrate material 7.SELECTED DRAWING: Figure 1

Description

The present invention relates to a corner structure of a building and a column cover.

In recent years, corner parts of buildings such as prefabricated houses include a pillar arranged at the corner part, a pillar cover covering the pillar, and a base arranged outside the pillar cover and fixed to the pillar cover. There is one that includes a base material and an exterior part disposed outside the base material. The exterior portion includes, for example, an adhesive applied to the entire surface of the base material and a tile fixed with the adhesive. As a related technique, there is Patent Document 1 below.

Utility Model Publication No. 6-62069

At the corner portion, the two outer wall surfaces receive different solar radiation. For this reason, minute cracks may occur in a portion of the adhesive on the base material due to stress concentration due to a temperature difference between the surfaces of the two outer wall surfaces. When rainwater that enters through these minute cracks is absorbed by the base material, further peeling of the adhesive may progress due to the effects of frost damage, etc., and there is a risk that the exterior part of the tiles etc. may come off. .

The present invention was devised in view of the above-mentioned circumstances, and its main purpose is to provide a corner structure and pillar cover of a building that can suppress peeling of the exterior over a long period of time. There is.

The present invention relates to a structure of a corner part where a first outer wall surface and a second outer wall surface of a building intersect, including a pillar arranged at the corner part, a pillar cover covering the pillar, and an outer part of the pillar cover. The pillar cover includes a base material arranged and fixed to the pillar cover, and an exterior part disposed outside the base material to form the first outer wall surface and the second outer wall surface, and the pillar cover includes: It integrally includes a first member extending along the first outer wall surface and a second member extending along the second outer wall surface, and at least one of the first member and the second member is connected to the base layer. A first ventilation section is formed between the first recess and the base material, comprising a reference surface fixed to a material, and a first recess that is recessed from the reference surface toward the inside of the building and extends vertically. It is a corner structure of the building.

By employing the above configuration, the present invention can provide a structure for a corner portion of a building and a pillar cover that can suppress peeling of the exterior portion over a long period of time.

It is a sectional view showing the structure of the corner part of the building of a 1st embodiment. It is a perspective view showing a pillar cover of a 1st embodiment. FIG. 7 is a cross-sectional view showing the structure of a corner portion of a building according to a second embodiment. It is a sectional view showing the structure of the corner part of the building of a 3rd embodiment.

Hereinafter, one embodiment of the present invention will be described based on the drawings. It should be understood that the drawings include exaggerated representations and representations that differ from the actual dimensional ratios of structures to aid in understanding the content of the invention. In addition, throughout each embodiment, the same or common elements are denoted by the same reference numerals, and redundant explanations will be omitted. Furthermore, the specific configurations shown in the embodiments and drawings are for understanding the content of the present invention, and the present invention is not limited to the specific configurations shown.

FIG. 1 is a sectional view showing a corner structure (hereinafter sometimes simply referred to as "corner structure") 1 of a building according to an embodiment of the present invention. In FIG. 1, a horizontal cross section of the corner portion is shown.

[building]
An example of a building in which the structure 1 of the corner portion 2 of this embodiment is provided is a house. Note that the building is not limited to a residence, and may be, for example, a building. The building of this embodiment is provided with a first outer wall surface 3 and a second outer wall surface 4.

[Structure of corner part of building (first embodiment)]
As shown in FIG. 1, the corner portion 2 of the building of this embodiment is a corner portion where a first outer wall surface 3 and a second outer wall surface 4 intersect. In FIG. 1, the angle α of the corner portion 2 of the building is the angle formed by the first outer wall surface 3 and the second outer wall surface 4. The angle α is set to 80 to 100 degrees (90 degrees in this example), but is not limited thereto.

The corner structure 1 includes a pillar 5, a pillar cover 6, a base material 7, and an exterior part 8. Further, the corner structure 1 of this embodiment includes a wooden crosspiece 11 and a fixing member 12.

The pillar 5 is arranged at the corner part 2 of the building. The pillars 5 are for supporting the load of the building. The pillar 5 of this embodiment includes a first pillar 9 and a second pillar 10. Each of the first column 9 and the second column 10 of the present embodiment is composed of, for example, two channel steels, and these webs are brought into contact with each other (the channel steels are placed back to back) to be integrated. However, there is no particular limitation.

FIG. 2 is a perspective view of the pillar cover 6 of this embodiment. The pillar cover 6 of this embodiment has a shape such that the longitudinal direction of the pillar cover 6 is the vertical direction of the building. As shown in FIGS. 1 and 2, the pillar cover 6 is for covering the pillar 5. The pillar cover 6 of this embodiment includes a first member 17 and a second member 18, and is integrally provided with these members. The first member 17 is provided so as to extend along the first outer wall surface 3. On the other hand, the second member 18 is provided so as to extend along the second outer wall surface 4. At least one of the first member 17 and the second member 18 includes a reference surface 19 and a first recess 20. In this embodiment, both the first member 17 and the second member 18 include a reference surface 19 and a first recess 20.

The reference surface 19 is fixed to the base material 7. The reference surface 19 of this embodiment is formed as a surface on which the first member 17 or the second member 18 faces the base material 7. On the other hand, the first recess 20 is recessed from the reference surface 19 toward the inside of the building and extends vertically. A plurality of the first recesses 20 of this embodiment are provided at intervals in the horizontal direction along the outer wall surface (the first outer wall surface 3 and the second outer wall surface 4) of the building. Although the first recess 20 according to the present embodiment has a rectangular cross-sectional shape, it is not limited to this, and may have a semicircular shape, for example.

The pillar cover 6 of this embodiment further includes a top portion 21. The top portion 21 is a location where the first member 17 and the second member 18 intersect.

As shown in FIG. 1, the base material 7 is disposed outside the column cover 6 and is fixed to the column cover 6. The base material 7 of this embodiment is fixed to the first member 17 and the second member 18 of the column cover 6. In this embodiment, the base material 7 is fixed to a reference surface 19, which is a surface on which the first member 17 and the second member 18 come into contact with the base material 7. Therefore, the first recesses 20 of the first member 17 and the second member 18 are not fixed to the base material 7. As a result, a first ventilation section 22 that extends vertically is formed between the first recess 20 and the base material 7. The first ventilation section 22 of this embodiment is formed so that air such as outside air can pass therethrough, for example.

The exterior part 8 is arranged on the outside of the base material 7, and forms the outer wall surface (the first outer wall surface 3 and the second outer wall surface 4) of the building. The exterior portion 8 of this embodiment is provided on the outside of the base material 7 and fixed with an adhesive 23. The exterior portion 8 includes a first outer wall surface 3 and a second outer wall surface 4. The exterior portion 8 is, for example, a tile 24 fixed to the base material 7 via an adhesive 23.

The wooden crosspiece 11 is a piece of wood for fixing the pillar cover 6 to the pillar 5. The wooden crosspiece 11 of this embodiment includes a first wooden crosspiece 13 and a second wooden crosspiece 14. The first wooden crosspiece 13 is fixed along the first pillar 9. On the other hand, the second wooden crosspiece 14 is fixed along the second pillar 10.

The fixing tool 12 is, for example, a screw or screw. The fastener 12 of this embodiment includes a first fastener 15 and a second fastener 16.

The first fixing member 15 fixes one end of the pillar cover 6 to the first wooden crosspiece 13. On the other hand, the second fixing member 16 fixes the other end of the column cover 6 to the second wooden crosspiece 14.

[Structure of the corner of the building and the effect of the column cover]
Next, it will be explained how the corner structure 1 and the pillar cover 6 of this embodiment can suppress peeling of the exterior part 8 over a long period of time.

The corner structure 1 of this embodiment dries rainwater accumulated between the pillar cover 6 and the base material 7 through the first ventilation section 22. Furthermore, the corner structure 1 also dries moisture inside the base material 7 via the first ventilation section 22. This makes the base material 7 less susceptible to frost damage. Thereby, the corner structure 1 can suppress expansion and deformation of the base material 7 due to frost damage. In this way, since the volume of the base material 7 becomes difficult to change, the adhesive 23 becomes less susceptible to stress concentration, and peeling of the adhesive 23 is suppressed. Thereby, the corner structure 1 (and the pillar cover 6) suppresses peeling of the exterior part 8 over a long period of time.

[Second recess]
It is preferable that the top portion 21 of the pillar cover 6 includes a second recessed portion 25 that is recessed from the base material 7 toward the inside of the building. By doing so, a second ventilation portion 26 that extends vertically between the base material 7 and the second recess 25 can be formed in the top portion 21 . The second ventilation portion 26 of this embodiment is formed so that air such as outside air can pass therethrough, for example. Such a second ventilation section 26 can obtain a larger amount of ventilation together with the first ventilation section 22. Therefore, the corner structure 1 (and the pillar cover 6) of the present embodiment can suppress peeling of the exterior part 8 for a longer period of time.

The second recess 25 is preferably formed by a chamfer 27 provided on the pillar cover 6. Thereby, the second recess 25 can be easily formed. The chamfered portion 27 of this embodiment is preferably formed so that the cross section of the second ventilation portion 26 is triangular. Thereby, the second recess 25 can be formed more easily than, for example, when it is formed in a semicircular shape. More preferably, the width W of the chamfered portion 27 is 10 to 20 mm. By setting the width W of the chamfered portion 27 to 10 mm or more, a sufficient amount of ventilation can be ensured. On the other hand, by setting the width W of the chamfered portion 27 to 20 mm or less, the strength of the pillar cover 6 can be maintained sufficiently.

[Steel plate]
It is preferable that the column cover 6 is formed of a steel plate. Thereby, the pillar cover 6 can obtain the effect of further restraining the base material 7. Moreover, the pillar cover 6 has the effect of preventing the spread of fire when a fire occurs.

By forming the pillar cover 6 of this embodiment from a steel plate, it is possible to increase the thermal conductivity compared to, for example, a case where the pillar cover 6 is formed from plywood. As a result, even if the amount of solar radiation differs between the first outer wall surface 3 and the second outer wall surface 4, for example, the first member 17 arranged inside the first outer wall surface 3 and the inner side of the second outer wall surface 4 The temperature difference between the second member 18 and the disposed second member 18 can be reduced, and the temperature difference between the first outer wall surface 3 and the second outer wall surface 4 can be reduced. Therefore, the adhesive 23 of the exterior part 8 forming the first outer wall surface 3 and the second outer wall surface 4 is less likely to be subjected to stress concentration, and the occurrence of minute cracks can be suppressed. As a result, the corner structure 1 (and the pillar cover 6) of the present embodiment suppresses peeling of the exterior portion 8 over a long period of time.

[tile]
When the exterior part 8 includes the tiles 24 as in this embodiment, rainwater (moisture) that has entered the interior of the base material 7 tends to stay inside the base material 7 without being released to the outside of the building. There is. However, in this embodiment, the first ventilation section 22 (and the second ventilation section 26) can dry the moisture that has entered the interior of the base material 7, so that the tiles 24 may not come off over a long period of time. can be suppressed.

[Structure of corner part of building (column cover) (second embodiment)]
In the embodiments so far, a mode in which both the first member 17 and the second member 18 include the reference surface 19 and the first recess 20 has been exemplified, but the present invention is not limited to such a mode. In this embodiment, only one of the first member 17 and the second member 18 may include the reference surface 19 and the first recess 20. FIG. 3 is a sectional view showing a structure 1 of a corner portion according to another embodiment of the present invention.

In this embodiment, of the first outer wall surface 3 and the second outer wall surface 4, the first outer wall surface 3 faces the south side, which is often exposed to sunlight. In this embodiment, the first member 17 extending along the first outer wall surface 3 is provided with a reference surface 19 and a first recess 20, and a first ventilation section 22 is formed.

In this embodiment, since the first outer wall surface 3 receives a lot of solar radiation, an upward air current is likely to occur in the air inside the first ventilation section 22. Thereby, the first ventilation section 22 allows more air to flow than, for example, when the first outer wall surface 3 does not face the south side. Thereby, rainwater accumulated between the pillar cover 6 and the base material 7 and moisture inside the base material 7 can be dried. Therefore, the corner structure 1 (pillar cover 6) suppresses peeling of the exterior portion 8 over a long period of time.

[Structure of corner part of building (column cover) (third embodiment)]
In the embodiments described above, the column cover 6 was formed of a steel plate, but the present invention is not limited to this embodiment. FIG. 4 shows the structure 1 of the corner portion of the third embodiment.

The pillar cover 6 of this embodiment is made of plywood. The first recess 20 is provided in the first member 17 and the second member 18 by being carved in the shape of a groove. The second recess 25 is provided by cutting off the top portion 21. The corner structure 1 provided with such a pillar cover 6 can dry moisture inside the base material 7 and prevent peeling of the exterior part 8 over a long period of time, as in the previous embodiments. suppress. Furthermore, in this embodiment, since the pillar cover 6 is formed of plywood, the cost can be reduced compared to, for example, a case where it is formed of a steel plate. In this embodiment, both the first member 17 and the second member 18 include the reference surface 19 and the first recess 20, but only one of them includes the reference surface 19 and the first recess. 20.

[Structure of corner part of building (column cover) (fourth embodiment)]
In the embodiments described above, the case where the exterior portion 8 includes the tiles 24 has been exemplified, but the present invention is not limited to such an aspect. For example, the exterior portion 8 may include a coating film (hereinafter sometimes simply referred to as a "coating film") made of an inorganic coating.

For example, if a paint film has a deteriorated portion, rainwater may enter through the deteriorated portion. The coating film tends to prevent rainwater (moisture) that has entered the base material 7 from being discharged to the outside of the building. However, in this embodiment, since the first ventilation section 22 (and the second ventilation section 26) can dry the moisture that has entered the interior of the base material 7, deterioration of the coating film can be prevented over a long period of time. Can be suppressed.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-mentioned specific disclosure, and can be implemented in various ways within the scope of the technical idea described in the claims. It can be modified and implemented. Although the pillar 5 constituting the corner portion 2 of this embodiment is comprised of the first pillar 9 and the second pillar 10, it is not limited to such an aspect. For example, depending on the structure of the building, It may be composed of only one pillar or may include other pillars.

[Additional notes]
The present invention includes the following aspects.

[Invention 1]
A structure of a corner portion where a first outer wall surface and a second outer wall surface of a building intersect,
a pillar arranged at the corner part;
a pillar cover that covers the pillar;
a base material arranged on the outside of the pillar cover and fixed to the pillar cover;
an exterior part disposed outside the base material and forming the first outer wall surface and the second outer wall surface,
The pillar cover integrally includes a first member extending along the first outer wall surface and a second member extending along the second outer wall surface,
At least one of the first member and the second member includes a reference surface fixed to the base material, and a first recess that is recessed from the reference surface toward the inside of the building and extends vertically,
A first ventilation portion extending vertically is formed between the first recess and the base material.
The structure of the corner of the building.
[Invention 2]
The structure of a corner portion of a building according to the present invention, wherein both the first member and the second member include the reference surface and the first recess.
[Invention 3]
The pillar cover includes a top portion where the first member and the second member intersect,
The corner of the building according to the present invention 1 or 2, wherein the top part includes a second recessed part recessed from the base material to the inside of the building so as to form a second ventilation part extending vertically between the top part and the base material. Department structure.
[Invention 4]
The second recess is a chamfered part such that the second ventilation part has a triangular cross section, and the width of the chamfered part is 10 to 20 mm. structure.
[Present invention 5]
5. The structure of a corner portion of a building according to any one of inventions 1 to 4, wherein the pillar cover is made of a steel plate.
[Invention 6]
6. The structure of a corner portion of a building according to any one of the present inventions 1 to 5, wherein the exterior portion includes tiles fixed to the base material via an adhesive.
[Present invention 7]
7. The structure of a corner portion of a building according to any one of the present inventions 1 to 6, wherein the exterior portion includes a coating film made of inorganic coating.
[Invention 8]
A pillar cover that covers a pillar arranged at a corner where a first external wall surface and a second external wall surface of a building intersect,
a first member extending along the first outer wall surface;
integrally comprising a second member extending along the second outer wall surface;
At least one of the first member and the second member includes a reference surface and a first recess that is recessed from the reference surface toward the inside of the building and extends vertically.
pillar cover.
[Present invention 9]
The pillar cover according to the present invention 8, wherein both the first member and the second member include the reference surface and the first recess.
[Invention 10]
The pillar cover includes a top portion where the first member and the second member intersect,
The top portion includes a chamfered portion;
The pillar cover according to Invention 9, wherein the chamfered portion has a width of 10 to 20 mm.
[Invention 11]
The pillar cover according to any one of inventions 8 to 10, wherein the pillar cover is made of a steel plate.

1 Structure of the corner of the building 3 First outer wall surface 4 Second outer wall surface 5 Pillar 6 Pillar cover 7 Base material 8 Exterior part 17 First member 18 Second member 19 Reference plane 20 First recess 21 Top part 22 First ventilation part 23 Adhesive 24 Tile 25 Second recess 26 Second vent 27 Chamfer

Claims (11)

A structure of a corner portion where a first outer wall surface and a second outer wall surface of a building intersect,
a pillar arranged at the corner part;
a pillar cover that covers the pillar;
a base material arranged on the outside of the pillar cover and fixed to the pillar cover;
an exterior part disposed outside the base material and forming the first outer wall surface and the second outer wall surface,
The pillar cover integrally includes a first member extending along the first outer wall surface and a second member extending along the second outer wall surface,
At least one of the first member and the second member includes a reference surface fixed to the base material, and a first recess that is recessed from the reference surface toward the inside of the building and extends vertically,
A first ventilation portion extending vertically is formed between the first recess and the base material.
The structure of the corner of the building. The structure of a corner portion of a building according to claim 1, wherein both the first member and the second member include the reference surface and the first recess. The pillar cover includes a top portion where the first member and the second member intersect,
The corner of a building according to claim 1 or 2, wherein the top part includes a second recessed part recessed from the base material to the inside of the building so as to form a second ventilation part extending vertically between the top part and the base material. Department structure. 4. The corner part of a building according to claim 3, wherein the second recess is a chamfered part such that the cross section of the second ventilation part is triangular, and the width of the chamfered part is 10 to 20 mm. structure. The structure of a corner portion of a building according to claim 1 or 2, wherein the pillar cover is made of a steel plate. The structure of a corner portion of a building according to claim 1 or 2, wherein the exterior portion includes tiles fixed to the base material via an adhesive. The structure of a corner portion of a building according to claim 1 or 2, wherein the exterior portion includes a coating film made of inorganic coating. A pillar cover that covers a pillar arranged at a corner where a first external wall surface and a second external wall surface of a building intersect,
a first member extending along the first outer wall surface;
integrally comprising a second member extending along the second outer wall surface;
At least one of the first member and the second member includes a reference surface and a first recess that is recessed from the reference surface toward the inside of the building and extends vertically.
pillar cover. The pillar cover according to claim 8, wherein both the first member and the second member include the reference surface and the first recess. The pillar cover includes a top portion where the first member and the second member intersect,
The top portion includes a chamfered portion;
The pillar cover according to claim 9, wherein the chamfered portion has a width of 10 to 20 mm. The pillar cover according to claim 8 or 9, wherein the pillar cover is made of a steel plate.

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