KR20250036248A - Intersection structure of building walls - Google Patents

Abstract

Provided is a building wall intersection structure having excellent sound insulation and earthquake resistance. A building wall intersection structure (100) having an intersection (70) in which a first wall (30) and a second wall (60) intersect in a T shape when viewed in plan view, wherein, at a second corner (72) of the intersection (70), a first B stud (20B) provided with a second face material (10B) is not arranged, and a second A stud (50A) provided with a third face material (40A) is arranged, and at the second corner (72), a reinforcing plate (80) spans both the inner surface of the second face material (10B) and the second A stud (50A), and is also fixed to both the second face material (10B) and the second A stud (50A).

Description

Intersection structure of building walls

The present disclosure relates to a cross-section structure of a building wall.

A dry partition wall including a boundary wall is formed by erecting a plurality of studs (or intermediate columns) at intervals in the longitudinal direction for a pair of upper and lower runners and installing a facing material such as gypsum board on both sides of each stud. Two living rooms, etc. are divided by the partition wall.

In a double-sided construction structure in which facing materials are installed on both sides of each stud forming a dry partition wall, a so-called sound bridge is formed, which easily causes sound to spread (leak) from one living room to the other, and thus may result in a partition wall with low sound insulation. Therefore, in order to improve sound insulation performance, a single-sided structure is sometimes applied in which neighboring studs are arranged in a zigzag pattern and facing materials are installed on one side of each stud, an example of which is proposed in Patent Document 1. The sound-insulating partition wall disclosed in Patent Document 1 is a partition wall formed by doubly fixing and installing wall boards with intervening pillars and loading sound-insulating material into the hollow layer between the wall boards. One side of the middle column is in contact with the wall board surface on one side, and a gap is left between the other side of the middle column and the wall board surface on the other side, and the middle column is arranged in a zigzag pattern between the wall boards, and soundproofing material is loaded in the gap between the hollow layer and the middle column and the wall board.

Japanese Patent Publication No. 5-47123

An example of a partition wall structure in which the facing material is a single-sided structure for a stud, including the partition wall described in Patent Document 1, is shown in Fig. 1. Here, Fig. 1 is a cross-sectional view of an example of a conventional partition wall. The illustrated example shows the intersection (70) where a first wall (30), which is a partition wall, and a second wall (60), which is a partition wall or an outer wall, intersect in a T shape when viewed from the top.

The first wall (30) has a zigzag arrangement in which a plurality of first A studs (20A) and a plurality of first B studs (20B) are alternately arranged in a direction orthogonal to the horizontal length direction with a space therebetween, and a first face material (10A) is installed on one side of the plurality of first A studs (20A), and a second face material (10B) is installed on one side of the plurality of first B studs (20B). The first face material (10A) has an overlapping structure of a lower face material (11A) formed by a plurality of lower construction face materials and an upper face material (12A) formed by a plurality of upper construction face materials, one side being arranged horizontally and the other side being arranged vertically. Likewise, the second face (10B) is a superimposed structure of a lower face (11B) formed by a plurality of lower construction face sheets and an upper face (12B) formed by a plurality of upper construction face sheets, one side being laid out horizontally and the other side being laid out vertically. The lower face sheets (11A, 11B) are each fixed to a corresponding stud (20A, 20B) by a fixing member (25) such as a screw, and the upper face sheets (12A, 12B) are fixed to the lower face sheets (11A, 11B) by an adhesive, staples, or the like.

There is a cavity (15) inside the first wall (30), and soundproofing and thermal insulation are secured by this cavity (15). In addition, there is also a form in which soundproofing material is filled in the cavity (15) to further enhance soundproofing performance.

The second wall (60) has a zigzag arrangement in which a plurality of second A studs (50A) and a plurality of second B studs (50B) are alternately arranged in a direction orthogonal to the horizontal length direction with a space therebetween in the horizontal length direction, and a third face material (40A) is installed on one side of the plurality of second A studs (50A), and a fourth face material (40B) is installed on one side of the plurality of second B studs (50B). The third face material (40A) has an overlapping structure of a lower face material (41A) formed by a plurality of lower construction face materials and an upper face material (42A) formed by a plurality of upper construction face materials, and one side is constructed horizontally and the other side is constructed vertically. Likewise, the fourth face (40B) is a superimposed structure of a lower face (41B) formed by a plurality of lower construction face sheets and an upper face (42B) formed by a plurality of upper construction face sheets, one side being laid out horizontally and the other side being laid out vertically. The lower face sheets (41A, 41B) are each fixed to a corresponding stud (50A, 50B) by a fixing member (25) such as a screw, and the upper face sheets (42A, 42B) are fixed to the lower face sheets (41A, 41B) by an adhesive, staples, or the like.

There is a cavity (45) inside the second wall (60), and soundproofing and thermal insulation are secured by this cavity (45). In addition, there is also a form in which soundproofing material is filled in the cavity (45) to further enhance soundproofing performance.

At the intersection (70) where the first wall (30) and the second wall (60) intersect in a T shape when viewed in plan view, an intersection structure (90) of a building wall is formed, and the two inner corners of the intersection (70), the first corner (71) and the second corner (72), face two living rooms (R1, R2) respectively. In the intersection structure (90), a longitudinal (vertical) slit (55) is provided at the intersection (70) to prevent sound from spreading through the lower surface (41A) of the third surface (40A) forming the second wall (60).

In this way, since the first A stud (20A) and the first B stud (20B) constituting the first wall (30) have a configuration in which facings are not installed on both sides, and furthermore, since the lower facing (41A) of the third facing (40A) constituting the second wall (60) has a longitudinal slit (55) at the intersection (70), the sound insulation performance of the partition wall (30) can be improved. However, on the other hand, since there is no stud supporting the second facing (10B) at the second corner (72), a structurally vulnerable portion (W) may be formed. Since the structurally vulnerable portion (W) is formed at a part of the intersection (70) in this way, there is a concern that the structurally vulnerable portion (W) and its surroundings may crack and break when the building is displaced due to an earthquake or the like, and there was a problem in that the intersection structure had low seismic performance.

The present disclosure provides a cross-section structure of a building wall having both excellent sound insulation and earthquake resistance.

The cross-section structure of a building wall according to one aspect of the present disclosure is:

A structure of a building wall intersection in which the first wall and the second wall intersect in a T shape when viewed in plan view.

The above first wall is formed by alternately providing a plurality of first A studs and first B studs spaced apart in the horizontal length direction, and providing a first face material on one side of the plurality of first A studs and providing a second face material on one side of the plurality of first B studs.

The second wall is formed by alternately providing a plurality of second A studs and second B studs spaced apart in the horizontal length direction, and providing a third face material on one side of the plurality of second A studs and providing a fourth face material on one side of the plurality of second B studs.

At one of the two corners of the above intersection, which is a first corner, the first A stud having the first face material is arranged, and also the second A stud having the third face material is arranged,

At the other of the two corners of the above intersection, the first B stud provided with the second face material is not arranged, and the second A stud provided with the third face material is arranged.

At the second corner portion, a reinforcing plate is placed across the inner surface of the second face material and both sides of the second A stud, and the reinforcing plate is fixed to both sides of the second face material and the second A stud.

In addition, the cross-section structure of the building wall according to another aspect of the present disclosure

A structure of a building wall intersection in which the first wall and the second wall intersect in a cross shape when viewed in plan view.

The above first wall is formed by alternately providing a plurality of first A studs and first B studs spaced apart in the horizontal length direction, and providing a first face material on one side of the plurality of first A studs and providing a second face material on one side of the plurality of first B studs.

The second wall is formed by alternately providing a plurality of second A studs and second B studs spaced apart in the horizontal length direction, and providing a third face material on one side of the plurality of second A studs and providing a fourth face material on one side of the plurality of second B studs.

In the first corner of the four corners of the above intersection, the first A stud provided with the first face material is arranged, and the second A stud provided with the third face material is not arranged.

In the second corner of the four corners of the above intersection, the first B stud provided with the second face material is not arranged, and the second A stud provided with the third face material is arranged.

At the third corner among the four corners of the above intersection, the second B stud provided with the fourth face material is arranged, and the first A stud provided with the first face material is not arranged.

At the fourth corner among the four corners of the above intersection, the first B stud provided with the second face material is arranged, and the second B stud provided with the fourth face material is not arranged.

In the first corner portion, a reinforcing plate is placed across the inner surface of the third face material and both sides of the first A stud, and the reinforcing plate is fixed to both sides of the third face material and the first A stud.

In the second corner portion, a reinforcing plate is placed across the inner surface of the second face material and both sides of the second A stud, and the reinforcing plate is fixed to both sides of the second face material and the second A stud.

In the third corner portion, a reinforcing plate is placed across the inner surface of the first face material and both sides of the second B stud, and the reinforcing plate is fixed to both sides of the first face material and the second B stud.

At the fourth corner portion, a reinforcing plate is placed across the inner surface of the fourth face material and both sides of the first B stud, and the reinforcing plate is fixed to both sides of the fourth face material and the first B stud.

According to the present disclosure, a cross-section structure of a building wall having excellent sound insulation and earthquake resistance can be provided.

Figure 1 is a cross-sectional view of an example of a conventional building wall intersection structure (Comparative Example 1).
FIG. 2 is a cross-sectional view of an example of a building wall intersection structure according to the first embodiment.
FIG. 3 is a cross-sectional view of another example of a building wall intersection structure according to the first embodiment.
Fig. 4 is a cross-sectional view of another example of a building wall intersection structure according to the second embodiment.
Fig. 5 is a cross-sectional view of an example of a building wall intersection structure according to the third embodiment.
Fig. 6 is a cross-sectional view of a modified example of a building wall intersection structure according to the third embodiment.
Figure 7 is a cross-sectional view of another example (Comparative Example 2) of a conventional architectural wall intersection structure.
Figure 8 is a cross-sectional view of another example (Comparative Example 3) of a conventional architectural wall intersection structure.

Hereinafter, the architectural wall intersection structure according to each embodiment will be described with reference to the attached drawings. In addition, in the description and drawings of the present invention, there are cases where substantially identical components are given the same reference numerals to omit redundant descriptions.

[Building wall intersection structure according to the first embodiment]

First, an example of a building wall intersection structure according to the first embodiment will be described with reference to FIGS. 2 and 3. Here, FIG. 2 is a cross-sectional view of an example of a building wall intersection structure according to the first embodiment, and FIG. 3 is a cross-sectional view of another example of a building wall intersection structure according to the first embodiment.

The intersection structure of the building wall of the city example is a double-sided, two-layer wall with an overlapping structure consisting of a lower face and an upper face, each of which is two layers. Each wall may be a wall with three or more face sheets overlapping on both sides, or may be a wall with one face sheet (one layer) on both sides.

The intersection structure (100) of the building wall shown in Fig. 2 is applied to steel frame buildings, RC (Reinforced Concrete) buildings, wooden buildings, etc., and such buildings include not only general single-family houses, apartment complexes, and other multi-family houses, but also factories and warehouses.

The cross section structure (100) is a cross section structure having a cross section (70) in which the first wall (30) and the second wall (60) intersect in a T shape when viewed in plan view.

The first wall (30) and the second wall (60) are provided with a lower runner (or floor runner, not shown) and an upper runner (or ceiling runner) that are formed to extend in a transverse (horizontal) direction, and each of the upper and lower ends of studs (20A, 20B, 50A, 50B) that are formed to extend in a longitudinal (vertical) direction relative to the upper and lower runners are provided. The upper runner and the lower runner are formed by a lightweight steel frame such as a grooved steel, and the upper runner is provided on an upper floor structure (not shown) in a position where the opening faces downward, and the lower runner is provided on a lower floor structure (not shown) in a position where the opening faces upward.

Studs (20A, 20B, 50A, 50B) are formed by grooved steel with ribs of lightweight steel, but may also be formed by other grooved steel or each shaped steel pipe, etc. Here, a plurality of flow prevention devices (not shown) extending in the horizontal direction may be provided at a predetermined pitch (for example, 1200 mm) in the height direction of the studs (20A, 20B, 50A, 50B).

The upper runner, lower runner, and studs (20A, 20B, 50A, 50B) may be, for example, lightweight steel frames having a thickness of 0.4 mm or more; steel runners and steel studs specified in JIS A 6517 (“Steel Substrates for Construction”), or equivalents, reference products, or compatible products thereof, may be applied. In the first wall (30) and the second wall (60), a plurality of studs (20A, 20B, 50A, 50B) are positioned between the lower runner and the upper runner at intervals of 606 mm or less (for example, intervals of 606 mm and 455 mm) in the horizontal length direction of the wall. In addition, for urban studs (20A, 20B, 50A, 50B), type 65 (65mmХ45mmХ0.8mm) or type 75 (75mmХ45mmХ0.8mm) can be applied, and in addition, type 50 (50mmХ45mmХ0.8mm), type 90 (90mmХ45mmХ0.8mm), type 100 (100mmХ45mmХ0.8mm), etc. can also be applied.

The first wall (30) has a zigzag arrangement in which a plurality of first A studs (20A) and a plurality of first B studs (20B) are alternately arranged in a direction orthogonal to the horizontal length direction with a space therebetween, and a first face material (10A) is provided on one side of the plurality of first A studs (20A), and a second face material (10B) is provided on one side of the plurality of first B studs (20B). The first face material (10A) has an overlapping structure of a lower face material (11A) formed by a plurality of lower construction face materials and an upper face material (12A) formed by a plurality of upper construction face materials, and one side is constructed horizontally, and the other side is constructed vertically. Likewise, the second face (10B) is a superimposed structure of a lower face (11B) formed by a plurality of lower construction face sheets and an upper face (12B) formed by a plurality of upper construction face sheets, one side being horizontally arranged for construction and the other side being vertically arranged for construction. The lower face sheets (11A, 11B) are each fixed to studs (20A, 20B) by fasteners (25) such as screws, and the upper face sheets (12A, 12B) are fixed to the lower face sheets (11A, 11B) by an adhesive, staples, or the like.

There is a hollow space (15) inside the first wall (30), and soundproofing and thermal insulation are secured by this hollow space (15). In addition, in order to further improve soundproofing performance, the hollow space (15) may be filled with soundproofing materials (including sound-absorbing materials, sound-insulating materials, etc.) such as glass wool or rock wool.

The second wall (60) is configured with a zigzag arrangement in which a plurality of second A studs (50A) and a plurality of second B studs (50B) are alternately arranged in a direction orthogonal to the horizontal length direction with a space therebetween in the horizontal length direction, and a third face material (40A) is provided on one side of the plurality of second A studs (50A), and a fourth face material (40B) is provided on one side of the plurality of second B studs (50B). The third face material (40A) has an overlapping structure of a lower face material (41A) formed by a plurality of lower construction face materials and an upper face material (42A) formed by a plurality of upper construction face materials, one side of which is horizontally arranged and the other side of which is vertically arranged. Similarly, the fourth face (40B) is a superimposed structure of a lower face (41B) formed by a plurality of lower construction face sheets and an upper face (42B) formed by a plurality of upper construction face sheets, one side being horizontally constructed and the other side being vertically constructed. The lower face sheets (41A, 41B) are each fixed to studs (50A, 50B) by fasteners (25) such as screws, and the upper face sheets (42A, 42B) are fixed to the lower face sheets (41A, 41B) by an adhesive, staples, or the like.

There is a hollow space (45) inside the second wall (60), and soundproofing and thermal insulation are secured by this hollow space (45). In addition, in order to further improve soundproofing performance, soundproofing material such as glass wool or rock wool can be filled into the hollow space (45).

At the intersection (70) where the first wall (30) and the second wall (60) intersect in a T shape when viewed in plan view, an intersection structure (100) is formed, and the two inner corners of the intersection (70), the first corner (71) and the second corner (72), face two living rooms (R1, R2) respectively. In the intersection structure (100), a wide slit (56) is provided so as to extend in the longitudinal direction (vertical direction) from the intersection (70) in order to prevent sound from spreading through the lower surface (41A) of the third surface (40A) forming the second wall (60).

For the lower construction facing material forming the lower facing material (11A, 11B, 41A, 41B), gypsum plate, gypsum board, calcium silicate plate, particle board, hard board, plywood, structural plywood, etc. are applied, and among them, gypsum plate or gypsum board can be used appropriately as needed.

Meanwhile, gypsum plate, gypsum board, calcium silicate plate, etc. are applied to the upper construction surface forming the upper surface (12A, 12B, 42A, 42B), and among these, gypsum plate, gypsum board, etc. can be suitably used as needed.

Gypsum boards include, in addition to common gypsum boards, reinforced gypsum boards, ordinary rigid gypsum boards, sheathing rigid gypsum boards, moisture-absorbing and -releasing reinforced gypsum boards, moisture-absorbing and -releasing common gypsum boards, moisture-absorbing and -releasing sheathed rigid gypsum boards, glass fiber non-woven gypsum boards, glass mat gypsum boards, etc.

For example, when gypsum board is applied, in terms of its short side, long side and thickness, it is formed of semi-fireproof material of 910mm Х 1820mm Х 9.5mm or non-fireproof material of 910mm Х 1820mm (2420mm, 2730mm) Х 12.5mm (15mm, 21mm, 25mm), and the width of the gypsum board, in addition to 910mm, includes 606mm, 1000mm width, 1220mm width, etc.

The first wall (30) is a partition wall that divides the living room (R1, R2). Meanwhile, the second wall (60) may be a separate partition wall that forms the living room (R1, R2) together with the first wall (30), or may be an exterior wall.

In this way, the first A stud (20A) and the first B stud (20B) constituting the first wall (30) have a configuration in which no facings are installed on both sides, and further, the lower facing (41A) of the third facing (40A) constituting the second wall (60) has a longitudinal slit (56) at the intersection (70), thereby enhancing the sound insulation performance of the partition wall (30).

In addition, unlike the cross-section structure (90) shown in Fig. 1, in order to prevent the formation of a structural weakness (W) at the second corner portion (72), at the second corner portion (72) where the second face material (10B) is not supported by the first B stud (20B), a straight reinforcing plate (80, an example of a reinforcing plate) is positioned across both the inner surface of the second face material (10B) and the second A stud (50A) forming the second wall (60), and is fixed to both the second face material (10B) and the second A stud (50A) by a fastener (28) such as a screw.

The straight reinforcing plate (80) is applied in a single long shape having a vertical length to the second face material (10B) and the second A stud (50A), and is fixed by a plurality of fixing members (28) at a predetermined interval in the vertical direction to each of the second face material (10B) and the second A stud (50A). In addition, the straight reinforcing plate (80) may be applied in a plurality of relatively short shapes, and a plurality of straight reinforcing plates (80) may be intermittently arranged and fixed to each of the second face material (10B) and the second A stud (50A).

In addition, as in the example of the city, the fixing position by the fixing member (28) for the second face (10B) and the second A stud (50A) in the one-piece reinforcing plate (80) is preferably provided near the second corner (72), so that when the second corner (72) is used as a support point, the distance to each fixing member (28) can be shortened, and thus the pulling force due to the bending moment that can be applied to each fixing member (28) can be reduced, which is preferable. In terms of ensuring good fixing performance while being as close as possible to the second corner (72), the fixing position by the fixing member (28) can be set at a position about 10 to 15 mm away from the second corner (72).

According to the intersection structure (100) of the building wall, the second corner portion (72) where the second face material (10B) is not supported by the first B stud (20B) is reinforced by a straight reinforcing plate (80), resulting in an intersection structure with excellent sound insulation and earthquake resistance.

Although the city is omitted, the straight reinforcing plate (80) may be fixed by the fasteners (28) to both the second A stud (50A) and the first B stud (20B). In addition, a stopper may be installed to suppress the movement of the straight reinforcing plate (80) with respect to the upper and lower runners (not shown). In addition, the straight reinforcing plate (80) may be provided between the upper and lower runners (not shown) and spacers installed on the upper and lower runners. In addition, by making the cross section of the lower face (11B) abut against the second A stud (50A) without interposing the lower face (41A), the fixing position of the fasteners (28) that fix the straight reinforcing plate (80) to the lower face (11B) may be made even closer to the second A stud (50A).

Meanwhile, the intersection structure (100A) of the building wall shown in Fig. 3 differs from the intersection structure (100) in the following points. That is, in the first wall (30), both the first A stud (20A) and the first B stud (20B) are formed and arranged in the wall core (L1, 壁芯), and the first face material (10A) and the second face material (10B) are installed alternately with the support plate (21) interposed therebetween. In addition, in the second wall (60), both the second A stud (50A) and the second B stud (50B) are formed and arranged in the wall core (L2), and the third face material (40A) and the fourth face material (40B) are installed alternately with the support plate (51) interposed therebetween.

Even in the cross-section structure (100A), the second corner portion (72) where the second face material (10B) is not supported by the first B stud (20B) is reinforced by a straight reinforcing plate (80), resulting in a cross-section structure with excellent sound insulation and earthquake resistance.

[Building wall intersection structure according to the second embodiment]

Next, an example of a building wall intersection structure according to the second embodiment will be described with reference to FIG. 4. Here, FIG. 4 is a cross-sectional view of another example of a building wall intersection structure according to the second embodiment.

The building wall intersection structure (100B) shown in Fig. 4 differs from the intersection structure (100) in that an L-shaped reinforcement plate (85, another example of a reinforcement plate) is applied instead of a straight-line reinforcement plate (80). In addition, an L-shaped reinforcement plate (85) may also be applied to the configuration of the intersection structure (100A) equipped with support plates (21, 51).

The L-shaped reinforcing plate (85) is fixed by, for example, pre-installing one piece of the L-shaped reinforcing plate (85) on one side of the second A stud (50A) using a double-sided tape, screw, or the like, inserting the one piece between one side of the second A stud (50A) and the third face material (40A), and also pressing the other piece of the L-shaped reinforcing plate (85) against the inner side of the second face material (10B) and installing both pieces on the second A stud (50A) and the second face material (10B) using a fixing member (28) such as a screw.

The L-shaped reinforcing plate (85) is applied in a single long shape having a vertical length to the second face material (10B) and the second A stud (50A), and is fixed by a plurality of fixing members (28) at a predetermined interval in the vertical direction to each of the second face material (10B) and the second A stud (50A). In addition, the L-shaped reinforcing plate (85) may be applied in a plurality of relatively short shapes, and a plurality of L-shaped reinforcing plates (85) may be intermittently arranged and fixed to each of the second face material (10B) and the second A stud (50A).

In addition, as in the example of the city, the fixing position by the fixing member (28) for the second face (10B) and the second A stud (50A) in the L-shaped reinforcing plate (85) is preferably provided near the second corner (72), so that when the second corner (72) is used as a support point, the distance to each fixing member (28) can be shortened, and thus the pulling force due to the bending moment that can be applied to each fixing member (28) can be reduced, which is preferable. In terms of ensuring good fixing performance while being as close as possible to the second corner (72), the fixing position by the fixing member (28) can be set at a position that is about 10 to 15 mm apart from the second corner (72).

Even in the intersection structure (100B) of the building wall, the second corner portion (72) where the second face material (10B) is not supported by the first B stud (20B) is reinforced by an L-shaped reinforcing plate (85), resulting in an intersection structure with excellent sound insulation and earthquake resistance.

Although the city is omitted, the L-shaped reinforcing plate (85) may be fixed by the fasteners (28) to both the second A stud (50A) and the first B stud (20B). In addition, a stopper may be installed to suppress the movement of the L-shaped reinforcing plate (85) with respect to the upper and lower runners (not shown). In addition, a straight reinforcing plate (80) may be provided between the upper and lower runners (not shown) and the spacers installed on the upper and lower runners. In addition, by making the cross section of the lower face (11B) abut against the second A stud (50A) without interposing the lower face (41A), the fixing position of the fasteners (28) that fix the L-shaped reinforcing plate (85) to the lower face (11B) may be made even closer to the second A stud (50A).

[Intersection structure of building wall according to the third embodiment]

Next, an example of a building wall intersection structure according to the third embodiment will be described with reference to FIGS. 5 and 6. Here, FIG. 5 is a cross-sectional view of another example of a building wall intersection structure according to the third embodiment, and FIG. 6 is a cross-sectional view of a modified example of the building wall intersection structure according to the third embodiment.

The building wall intersection structure (100C) shown in Fig. 5 is an intersection structure having an intersection (70A) where the first wall (30) and the second wall (60) intersect in a cross shape when viewed in plan view. Since the intersection (70A) has a cross shape, it has four corners (inner corners) including a third corner (73) and a fourth corner (74) in addition to the first corner (71) and the second corner (72). In addition, the intersection (70A) has four wide slits (56) extending in the longitudinal direction (vertical direction).

The first wall (30) and the second wall (60) are both partition walls, and around the intersection structure (100C) centered on the intersection (70A), four living rooms (R1, R2, R3, R4) are provided by the first wall (30) and the second wall (60).

In the cross-section structure (100C), the first A stud (20A) on which the first face material (10A) is installed is placed at the first corner portion (71), and the second A stud (50A) on which the third face material (40A) is installed is not placed. Accordingly, a structural weakness is formed at the third face material (40A) at the first corner portion (71).

Meanwhile, at the second corner portion (72), the first B stud (20B) equipped with the second face material (10B) is not arranged, and the second A stud (50A) equipped with the third face material (40A) is arranged. Accordingly, a structural weakness is formed in the second face material (10B) at the second corner portion (72).

Meanwhile, at the third corner portion (73), the second B stud (50B) equipped with the fourth face material (40B) is arranged, and the first A stud (20A) equipped with the first face material (10A) is not arranged. Therefore, a structural weakness is formed in the first face material (10A) at the third corner portion (73).

In addition, at the fourth corner portion (74), the first B stud (20B) equipped with the second face material (10B) is arranged, and the second B stud (50B) equipped with the fourth face material (40B) is not arranged. Therefore, a structural weakness is formed in the fourth face material (40B) at the fourth corner portion (74).

Thus, in order to prevent the formation of a structural weakness at the intersection (70A), an L-shaped reinforcing plate (85) is applied to each of the first corner portion (71) to the fourth corner portion (74), and the L-shaped reinforcing plate (85) is fixed to the corresponding stud and the inner surface of the face material by a fixing member (28) such as a screw.

According to the intersection structure (100C) of the building wall, even in a form having a cross-shaped intersection (70A) when viewed in plan view, the areas where the facing material is not supported by studs in the four corners (71 to 74) are reinforced by L-shaped reinforcing plates (85), resulting in an intersection structure with excellent sound insulation and earthquake resistance.

Meanwhile, the intersection structure (100D) of the building wall shown in Fig. 6 is a structure having an intersection (70A) that intersects in a cross shape when viewed in plan view, and instead of an L-shaped reinforcing plate (85), a straight reinforcing plate (80) is applied, similar to the intersection structure (100, 100A).

Even in the case of the intersection structure (100D) of the building wall, when the intersection (70A) is provided in a cross shape when viewed in plan view, the four corners (71 to 74) where the facing is not supported by studs are reinforced by a straight reinforcing plate (80), resulting in an intersection structure with excellent sound insulation and earthquake resistance.

[A study on the performance of the intersection structure of building walls]

Next, the performance of the building wall intersection structure (embodiment) according to the embodiment will be described in comparison with the conventional building wall intersection structure (comparative example). Here, the intersection structure (90) shown in Fig. 1, which is a conventional intersection structure, is referred to as Comparative Example 1, and as other comparative examples, the intersection structure (90A) shown in Fig. 7 is referred to as Comparative Example 2, and the intersection structure (90B) shown in Fig. 8 is referred to as Comparative Example 3. On the other hand, the intersection structure (100) shown in Fig. 2 is referred to as Example 1, the intersection structure (100A) shown in Fig. 3 is referred to as Example 2, and the intersection structure (100B) shown in Fig. 4 is referred to as Example 3.

The cross section structure (90A) of Comparative Example 2 shown in Fig. 7 is such that the first face material (10A) and the second face material (10B) are fixed to both sides of a common stud (20C) at the cross section (70). Therefore, in the cross section structure (90A), a structural weakness is not formed at the cross section (70). On the other hand, although the longitudinal slit (55) exists, the stud (20C) may form a sound bridge between the living rooms (R1, R2).

Meanwhile, the cross section structure (90B) of Comparative Example 3 shown in Fig. 8 is such that, in addition to the first face material (10A) and the second face material (10B) being fixed to both sides of a common stud (20C) at the cross section (70), there is no longitudinal slit (55), and the third face material (40A) and the fourth face material (40B) are also fixed to a common stud (50C). Thus, in the cross section structure (90B), a structural weakness is not formed at the cross section (70). Meanwhile, the stud (20C) and the lower face material (41A) can form a sound bridge between the living rooms (R1, R2).

Comparative Example 3 is a structure that has been generally known in the past in a T-shaped intersection, Comparative Example 2 is an improved structure that can reduce sound bridges compared to Comparative Example 3, and Comparative Example 1 is an improved structure that can further reduce sound bridges compared to Comparative Example 2.

The sound insulation performance and earthquake resistance performance of each of the above Examples 1 to 3 and Comparative Examples 1 to 3 are shown in Table 1 below. Meanwhile, in Table 1, in the sound insulation performance, "○" means good, "△" means suitable but not good, and "×" means unsuitable. In addition, in the earthquake resistance performance, "○" means high performance, and "×" means low performance.

Soundproofing performance Seismic performance
(Strength at the corners of the intersection) Example 1 ○ ○ Example 2 ○ ○ Example 3 ○ ○ Comparative Example 1 ○ × Comparative Example 2 △ ○ Comparative Example 3 × ○

As described above, the sound insulation performance improves in the order of Comparative Example 3, Comparative Example 2, and Comparative Example 1. In Comparative Example 1, while the sound insulation performance is good, the seismic performance is low because it has a structurally vulnerable part at the intersection (70). Compared to Comparative Examples 1 to 3, Examples 1 to 3 have intersection structures that are excellent in both sound insulation performance and seismic performance.

Meanwhile, other embodiments may be combined with other components, etc., in the configuration described in the above embodiment, and the present disclosure is not limited in any way to the configuration described herein. In this regard, it is possible to change the scope without departing from the intent of the present disclosure, and it can be appropriately determined according to the form of application.

This international application claims priority from Japanese Patent Application No. 2022-138307, filed on August 31, 2022, which is incorporated herein by reference in its entirety.

10A 1st cotton
10B 2nd side
11A lower surface
12A upper surface
11B lower surface
12B upper surface
15 hollow
20A 1st A stud (stud)
20B No. 1 B Stud (Stud)
21 Support Plate
25 Fixture (Bis)
28 Fixture (Bis)
30 1st wall
40A 3rd side
40B 4th cotton
41A lower surface
42A upper surface
41B lower surface
42B upper surface
45 hollow
50A 2nd A Stud (Stud)
50B 2nd B Stud (Stud)
56 slits
60 Second Wall
70, 70A cross section
71 First corner (corner)
72 Second corner (corner)
73 Third corner (corner)
74 4th corner (corner)
80-day reinforcing plate (reinforcement plate)
85 L-type reinforcing plate (reinforcing plate)
100, 100A, 100B, 100C, 100D Building Wall Intersection Structure (Intersection Structure)
L1, L2 wall core

Claims (12)

A building wall intersection structure in which the first wall and the second wall intersect in a T-shape when viewed in plan view.
The above first wall is formed by alternately providing a plurality of first A studs and first B studs spaced apart in the horizontal length direction, and providing a first face material on one side of the plurality of first A studs and providing a second face material on one side of the plurality of first B studs.
The second wall is formed by alternately providing a plurality of second A studs and second B studs spaced apart in the horizontal length direction, and providing a third face material on one side of the plurality of second A studs and providing a fourth face material on one side of the plurality of second B studs.
At one of the two corners of the above intersection, which is a first corner, the first A stud provided with the first face material is arranged, and the second A stud provided with the third face material is arranged.
At the other of the two corners of the above intersection, the first B stud provided with the second face material is not arranged, and the second A stud provided with the third face material is arranged.
A building wall intersection structure in which a reinforcing plate is placed across the inner surface of the second face material and both sides of the second A stud at the second corner portion, and the reinforcing plate is fixed to both sides of the second face material and the second A stud. A building wall intersection structure in which the first wall and the second wall intersect in a cross shape when viewed in plan view.
The above first wall is formed by alternately providing a plurality of first A studs and first B studs spaced apart in the horizontal length direction, and providing a first face material on one side of the plurality of first A studs and providing a second face material on one side of the plurality of first B studs.
The second wall is formed by alternately providing a plurality of second A studs and second B studs spaced apart in the horizontal length direction, and providing a third face material on one side of the plurality of second A studs and providing a fourth face material on one side of the plurality of second B studs.
In the first corner of the four corners of the above intersection, the first A stud provided with the first face material is arranged, and the second A stud provided with the third face material is not arranged.
In the second corner of the four corners of the above intersection, the first B stud provided with the second face material is not arranged, and the second A stud provided with the third face material is arranged.
At the third corner among the four corners of the above intersection, the second B stud provided with the fourth face material is arranged, and the first A stud provided with the first face material is not arranged.
At the fourth corner among the four corners of the above intersection, the first B stud provided with the second face material is arranged, and the second B stud provided with the fourth face material is not arranged.
In the first corner portion, a reinforcing plate is placed across the inner surface of the third face material and both sides of the first A stud, and the reinforcing plate is fixed to both sides of the third face material and the first A stud.
In the second corner portion, a reinforcing plate is placed across the inner surface of the second face material and both sides of the second A stud, and the reinforcing plate is fixed to both sides of the second face material and the second A stud.
In the third corner portion, a reinforcing plate is placed across the inner surface of the first face material and both sides of the second B stud, and the reinforcing plate is fixed to both sides of the first face material and the second B stud.
An architectural wall intersection structure in which a reinforcing plate is placed across the inner surface of the fourth face material and both sides of the first B stud at the fourth corner portion, and the reinforcing plate is fixed to both sides of the fourth face material and the first B stud. In paragraph 1 or 2,
A building wall intersection structure in which the above reinforcing plate is a straight reinforcing plate. In paragraph 1 or 2,
A building wall intersection structure in which the above reinforcing plate is an L-shaped reinforcing plate. In any one of paragraph 1, paragraph 3 or paragraph 4 citing paragraph 1,
The above first wall is a partition wall,
An architectural wall intersection structure in which the second wall is a partition wall or an exterior wall. In the second paragraph, or in the fourth paragraph citing the second paragraph,
An architectural wall intersection structure in which the first wall and the second wall are partition walls. In paragraph 5,
An architectural wall intersection structure in which the first face material and the second face material of the first wall forming the partition wall are overlapped with two or more layers of face materials. In Article 6,
An architectural wall intersection structure in which the first face material and the second face material of the first wall forming the partition wall, and the third face material and the fourth face material of the second wall are overlapped with two or more layers of face materials. In clause 5 or 7,
An architectural wall intersection structure in which soundproofing material is formed and arranged between the first and second facing materials. In clause 6 or 8,
An architectural wall intersection structure in which soundproofing material is formed and arranged between the first and second face materials and between the third and fourth face materials. In any one of claims 1 to 10,
In the above first wall, the adjacent first A stud and the first B stud are alternately arranged in a direction orthogonal to the horizontal length direction,
An architectural wall intersection structure in which, in the second wall, adjacent second A studs and second B studs are alternately arranged in a direction orthogonal to the horizontal length direction. In any one of claims 1 to 10,
In the first wall, all of the first A studs and the first B studs are formed and arranged at the wall center positions of the first wall, and the first face material and the second face material are provided with a support plate interposed between each of the first A stud and the first B stud.
An architectural wall intersection structure in which, in the second wall, all of the second A studs and the second B studs are formed and arranged at the wall center positions of the second wall, and the third face material and the fourth face material are provided with a support plate interposed between each of the second A studs and the second B studs.