JP5268738B2 - Building wall structure and building wall construction method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new building wall structure which exerts load-bearing performance as a bearing wall element of a building, even when a wall material is not applied to upper-story and lower-story beams; and to provide a method for constructing a building wall. <P>SOLUTION: In this building wall structure with the wall material 20 having a lower end 20b fixed to a column 6A (column material), a vertically-long reinforcing member 61 for preventing the deformation of the column 6A is annexed to the column 6A. Additionally, a lower furring-strips material 82 (end furring-strips material) for fixing the lower end 20b of the wall material 20 is horizontally laid on the column 6A (column material). The lower furring-strips material 82 has a width dimension larger than that of each of furring-strips materials 8 and 8 which are installed in other portions. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a building wall structure for constructing a building wall and a building wall construction method.

  2. Description of the Related Art Conventionally, a technique for improving a building's seismic performance and fireproof performance using a building wall material is known. In addition, by introducing a seismic wall structure through refurbishment, there is also known a technology that makes it possible to meet the demands of improving the seismic performance of existing buildings, and there are documents that disclose this (patent document) 1).

JP 2008-231765 A

  In the case of a structure that improves the seismic performance by the outer wall material as disclosed in Patent Document 1, the upper and lower ends of the inner wall material or the outer wall material are used as horizontal members such as beams, and the left and right are used as materials such as columns. When fixed firmly, horizontal external force (rolling) such as seismic force has a structure that can resist the seismic force by integrating horizontal members such as columns and beams with inner wall materials and exterior materials. ing.

  However, for example, when a so-called “roof winning wall” is constructed in which the wall material is arranged above the lower house (one-floor lower roof), the lower end of the wall material is hung up to the beam on the lower floor. In some cases, the wall material cannot be handed over, and it is necessary to fix the wall material directly only to the column, or only to the column via a trunk material or the like. In this case, when the wall material and the horizontal member such as a beam cannot be integrated and an earthquake force is applied, stress concentration occurs in the column and the joint at the place where the end of the wall material is arranged, and the column There is a concern that bending of the column and bending of the column may occur.

  Specifically, as shown in FIG. 11, the lower ends of the wall members 401 and 401 cannot be extended to the lower beam 402, and the wall members 401 and 401 are directly fixed only to the columns 403 and 403. In the case where it is necessary to do so, the horizontal members of the wall members 401 and 401 and the beam 402 cannot be integrated. When an earthquake force is applied during an earthquake, stress concentration occurs in the columns 403 and 403 at the positions where the end portions 404 of the wall members 401 and 401 are arranged, Deflection will occur in 403 and 403. In addition, there is concern that the fixing members 405 and 405 such as nails and screws fixing the wall materials 401 and 401 may be removed, and the wall material may be penetrated and loosened, so that the force to support the wall materials 401 and 401 is reduced. There is a concern to do.

  Similarly, for example, when an eave heaven (or eaves etc.) exists and a wall material is arranged below the eave heaven, so-called “eave heaven wall” is configured, the upper end of the wall material However, it is sometimes impossible to hang up to the beam on the upper floor, and it is necessary to fix the wall material directly only to the column, or to the column via a torso material or the like. Also in this case, there is a concern that the column will be bent or the column will be bent.

  Similarly, the exterior material may not be able to run up to the beam on both the upper and lower floors. In addition, there are cases where the same applies not only to the exterior material but also to the inner wall material.

  As mentioned above, when one end or both ends in the vertical direction of the wall material cannot be hung on a horizontal member such as a beam and must be fixed to a pillar, Since stress concentration occurs at the fixed location, the yield strength is significantly reduced. And the wall in such a fixed location becomes a part which cannot contribute as a load-bearing wall element of a building, and may become design restrictions. On the other hand, if the proof stress is increased by another structure or the like, the cost increases.

  Therefore, in view of the above problems, the present invention makes it possible to exhibit proof stress performance as a load-bearing wall element of a building even when the wall material is not hung on a beam on an upper floor or a beam on a lower floor. It proposes a new building wall structure and building wall construction method.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, as described in claim 1, at least one end in the vertical direction is a building wall structure having a wall member fixed to a column member via an end trunk material, and the column member includes: A reinforcing member that is long in the vertical direction is attached to prevent deformation of the column material, and the end barrel material for fixing the end portion of the wall material is horizontally mounted on the column material, and the end cylinder The edge member has a larger width dimension than the trunk edge member installed in another part, and the end of the reinforcing member extends to the upper side or the lower side of the end trunk edge member, The end trunk material is fixed to the reinforcing member, the end trunk material is a wood-based member having no orientation in the fiber direction, and the end trunk material is in relation to the column material. The end trunk material is fixed to the reinforcing member at two or more locations in the longitudinal direction of the reinforcing member, and the end trunk material is To the column member, is fixed in two or more places in the longitudinal direction of the pillar, and the building wall structure.

Further, as described in claim 2, it is a building wall construction method having a wall material in which at least one end portion in the vertical direction is fixed to the column material via an end trunk material, and the column material includes: a step you attached a vertically long reinforcing member for preventing deformation of the column member, said pillar material is a said end barrel edge material for fixing the ends of the wall material, the other A step of laying an end trunk material having a width dimension larger than that of a trunk material installed in a part; a step of fixing the end trunk material to the reinforcing member; and On the other hand, including at least a step of fixing the end trunk edge material, and the end portion of the reinforcing member extends to the upper side or the lower side than the end trunk edge material, said end Doenzai is a wood-based member having no orientation in the fiber direction, said end Doenzai is relative to the reinforcing member, the reinforcing portion In the longitudinal direction at fixed in two or more places, the end Doenzai is relative to the column members, wherein in the longitudinal direction of the pillar is fixed in two or more places, the building outer wall method to that.

  As effects of the present invention, the following effects can be obtained.

  In the present invention, an integral column member is formed by the column and the reinforcing member, and the column member exhibits high bending rigidity, so that deformation of the column can be suppressed and excellent earthquake resistance performance can be exhibited. . In addition, a large number of fixing points by the fixing member can be secured, and stress concentration at each fixing point can be prevented as compared with the case where the number of fixing points is small. Further, when the building is shaken due to an earthquake or the like, the load acting on the column can be distributed to the reinforcing member within the extended dimension range. Moreover, since the edge part of a wall material is fixed with respect to a reinforcement member via an edge part edge material, a wall material can be fixed not only by a column material but by a reinforcement member. And the load which acts in each fixed location can be disperse | distributed by increasing the number of the fixed locations of wall material. This can prevent stress concentration in the column material. In addition, if there is orientation in the fiber direction, cracks are likely to occur in the fiber direction, and there is a concern about a sharp decrease in strength, but by using a member having no orientation in the fiber direction, It is possible to prevent a rapid decrease in strength.

The figure shown about the building which employ | adopts the building wall structure which concerns on one Example of this invention. The perspective view shown about the example which applies the building wall structure which concerns on one Example of this invention to the location where a roof winning wall is comprised. The front view shown about the example which applies the building wall structure except the wall material which concerns on one Example of this invention to the location where a roof winning wall is comprised. The longitudinal cross-sectional view explaining the structure of the reinforcement of the pillar in the location where a roof winning wall is comprised. (A) is a horizontal sectional view shown about the outline of the building wall structure concerning one example of the present invention. (B) is a horizontal sectional view explaining the structure of reinforcement of a pillar. The longitudinal cross-sectional view shown about the example which applies the building wall structure which concerns on one Example of this invention to the location where an eaves-top wall is comprised. The front view shown about the example which applies the building wall structure except the wall material which concerns on one Example of this invention to the location where an eaves-top wall is comprised. The longitudinal cross-sectional view explaining the structure of the reinforcement of the pillar in the location where an eaves-top wall is comprised. FIG. 6 is a diagram illustrating a configuration of a third embodiment. The figure explaining the evaluation method of wall strength magnification. The figure explaining the bending etc. of the column concerned at the time of an earthquake.

  FIG. 1 is a diagram showing a building that employs a building wall structure according to an embodiment of the present invention. In the example of FIG. 1, a series of exteriors are configured such that windows 2,..., Entrance doors 3 are provided in the opening of the building 1, and other parts are covered with wall materials 20 and 120. Has been.

  Further, in FIG. 1, a lower roof 31 is disposed above the entrance door 3, and a roof winning wall 30 is configured at a position where the lower roof 31 is disposed. In addition, an eave heaven 41 is formed above the window 2 on the second floor of the building 1, and an eave heaven winning wall 40 is configured at a place where the eave heaven 41 is formed. .

And this invention can be implemented like the form of the roof winning wall 30 of Example 1 shown in FIG. 2, and the form of the eaves winning wall 40 of Example 2 shown in FIG. . Further, as in the third embodiment shown in FIG. 9, the embodiment can be implemented even in a form in which the upper and lower sides of the wall member 220 are not fixed to a horizontal member such as a beam (body difference) or a base.
Embodiments of the present invention will be described below using each example.

The configuration of the roof winning wall 30 will be described with reference to FIGS.
FIG. 2 shows a building wall structure according to an embodiment of the present invention in the roof winning wall 30. In the example of FIG. 2, columns 6A and 6B are arranged in the vertical direction between the beams 5A and 5B that are horizontally provided in the vertical direction. Further, in addition to the pillars 6A and 6B, the inter-columns 7 and 7 are arranged in the vertical direction, and the trunk edge members 8 and 8 are laid across the pillars 6A and 6B and the inter-columns 7 and 7, respectively. Further, a moisture-permeable waterproof sheet 9 is disposed on the indoor side of the trunk edge members 8 and 8, and wall materials 20 and 20 are disposed on the outer side of the trunk margin members 8 and 8.

  As shown in FIG. 2, the rectangular wall members 20, 20 that are long in the vertical direction have the upper end 20 a fixed to the beam 5 </ b> A via the upper trunk edge 81, while the lower end 20 b has the lower trunk edge 82. It is fixed to. In this way, the lower end portion 20b of the wall member 20 is fixed to the lower body frame member 82 because the indoor side end portion of the lower building 31 exists at the position in the middle in the vertical direction of the pillars 6A and 6B. This is because the lower end 20b of the wall member 20 cannot be fixed to the beam 5B. Note that the midway portion in the vertical direction of the wall member 20 is fixed to the trunk edge members 8 and 8.

  In addition, as shown in FIG. 2, a reinforcing member 61 that is long in the vertical direction is attached to the side surface 6 a of the column 6 </ b> A (the side surface perpendicular to the longitudinal direction of the lower body edge material 82 and the body edge material 8). Thereby, the pillar member in which the pillar 6A and the reinforcing member 61 are integrated is formed. And as shown in FIG. 3, the edge part of the lower trunk | drum material 82 is each fixed to the pillar 6A and the reinforcement member 61 with the fixing members 65 * 65. In addition, as shown in FIG. 2, the reinforcing member 63 can be similarly attached also about the pillar 6B. Further, if the reinforcing member 61 is wood, it is a coniferous lumber or laminated lumber, and its size is 30 × 30 mm or more in cross-sectional area, preferably 45 × 60 (finding width) mm or more, and the trunk edge direction is made long. Good. In addition, the fixing members 65 and 65 for holding the waist material (the lower waist material 82, etc.) are nails, screws, etc., and the length is 3 times or more of the body edge if it is a nail, and 2 times or more if it is a screw. Is desirable.

  In addition, as shown in FIG. 2, the length of the reinforcing member 61 in the vertical direction is configured to be at least larger than the distance between the beam 5 </ b> B and the lower trunk edge member 82 (the length of the portion where the wall cannot be stretched). With such a setting, it is possible to reinforce the bending rigidity of the column 6A by the reinforcing member 61. Thereby, when a building shakes due to an earthquake or the like, deformation of the pillar 6A can be suppressed.

  As shown in FIG. 3, the reinforcing member 61 is fixed to the column 6 </ b> A by a fixing member 66. 3 shows a state in which only the lower end portion 61b of the reinforcing member 61 is fixed by the fixing member 66, the other members of the reinforcing member 61 are similarly fixed by the fixing member. Is fixed to the column 6A. Thereby, when a building shakes due to an earthquake or the like, deformation of the pillar 6A can be suppressed. Further, the fixing member 66 for fixing the reinforcing member 61 is a screw, and it is desirable that the fixing member 66 has a length that is at least twice as long as the finding width of the reinforcing member 61.

  3 and 4, the lower end portion 61b of the reinforcing member 61 is the same as the lower end portion 82b of the lower trunk edge member 82 (in this embodiment, the lower end portion 20b of the wall member 20 in this roof winning wall specification). ) Is extended downward by a dimension D1. Thereby, when a building shakes due to an earthquake or the like, the load acting on the column 6A can be distributed to the reinforcing member 61 within the range of the dimension D1. If there is no extension of the dimension D1 in the reinforcing member 61, stress concentration occurs in the column 6A at a position corresponding to the lower end portion 82b of the lower body edge member 82, and local force acts. However, according to the configuration of the present embodiment, generation of a local force due to such stress concentration can be prevented.

  In addition, as shown in FIG. 4, in this embodiment, the rain pressing member 32 is arranged at the boundary portion 25 between the lower house 31 and the wall material 20. The rain holding member 32 is a long plate-like member that is long in the width direction of the lower house 31, and prevents rainwater and the like from entering the boundary portion 25 between the wall material 20 and the lower house 31. It is.

  Further, as shown in FIGS. 3 and 5A and 5B, the side surfaces 6a and 6b on both sides of the column 6A of the portion where the walls are continuous (perpendicular to the longitudinal direction of the lower body edge material 82 and the body edge material 8). Reinforcing members 61 and 62 are attached to the side surfaces, respectively, and the column 6A is sandwiched between the reinforcing members 61 and 62 from both sides. As a result, a column member in which the columns 6A are reinforced from both sides and integrated is formed, and bending rigidity can be reinforced. In the example shown in FIG. 5A, the reinforcing member is not attached to the intermediate pillar 7, but the reinforcing member may be attached to the intermediate pillar 7.

  Further, as shown in FIG. 4, the upper end portion 20 a of the wall member 20 is fixed to the beam 5 </ b> A by the fixing member 66 via the upper trunk edge member 81.

  4 and 5A and 5B, the lower end portion 20b of the wall member 20 is fixed to the lower trunk edge member 82 at a plurality of locations by fixing members 67 and 67. Yes.

  Further, as shown in FIG. 2, the wall member 20 is fixed to the trunk margin members 8 and 8 in addition to the upper trunk margin member 81 and the lower trunk margin member 82.

As described above, as shown in FIGS. 2 to 5, the wall member 20 is fixed to the upper trunk edge member 81, the lower trunk edge member 82, and the trunk edge members 8 and 8.
When a building shakes due to an earthquake or the like, an integral column member is formed by the column 6A and the reinforcing member 61. Therefore, the column member exhibits high bending rigidity, so that the column 6A is deformed. Will be suppressed.

  As described above, as shown in FIG. 2 to FIG. 5, in the portion where the roof winning wall 30 is configured, the lower body edge material 82 and the body edge are not supported without supporting the lower end portion 20b of the wall material 20 with the beam 5B. Even if it is the structure supported by the pillar 6A via the material 8, the reinforcement member 61 can suppress the deformation of the pillar 6A and can exhibit the earthquake resistance.

  Further, as shown in FIG. 3, the vertical width dimension W1 of the lower trunk edge material 82 is at least as compared with the vertical width dimension W2 of the other trunk edge material 8 disposed above the lower trunk edge material 82. It is supposed to be set to 2 times or more. Thereby, the surface area of the lower trunk | drum material 82 can be ensured widely. A large number of fixing points by the fixing members 65 and 65 can be secured (four in this embodiment), and stress concentration at each fixing point can be prevented as compared with the case where the number of fixing points is small.

  In particular, as shown in FIG. 2, since the upper end of the wall member 20 is fixed to the beam 5A, a large moment acts on the lower end 20b of the wall member 20 at the farthest position with the beam 5A as a fulcrum. Therefore, it is effective to secure a wide cross-sectional area of the lower trunk edge material 82. In addition, although it does not specifically limit about the member which comprises the lower trunk | limb_edge material 82, When considering the ease of generation | occurrence | production of the crack in a fiber direction, etc., when using a timber, it has orientation in a fiber direction. It is preferable to use a wood-based member having no metal, and may be a metal such as aluminum or steel.

As described above, in the first embodiment shown in FIGS.
A building wall structure having a wall member 20 whose lower end 20b is fixed to a column 6A (column member),
The column 6A is provided with a long reinforcing member 61 in the vertical direction for preventing the column 6A from being deformed.

  With this configuration, an integrated column member is formed by the column 6A and the reinforcing member 61, and this column member exhibits high bending rigidity, so that deformation of the column 6A can be suppressed, and excellent earthquake resistance performance is exhibited. be able to.

  In addition, a lower trunk edge material 82 (end trunk edge material) for fixing the lower end portion 20b of the wall member 20 is horizontally mounted on the column 6A (column material), and the lower trunk edge material 82 is It is set as the structure which has a larger width dimension than the trunk edge material 8 * 8 installed in another site | part.

  With this configuration, a large number of fixing points by the fixing member can be secured, and stress concentration at each fixing point can be prevented as compared with a case where the number of fixing points is small.

  Moreover, the lower end part 61b (end part) of the said reinforcement member 61 shall be the structure extended below the said lower trunk | drum material 82 (end part trunk | drum material).

  With this configuration, when the building is shaken due to an earthquake or the like, the load acting on the column can be distributed to the reinforcing member within the extended dimension range.

  Further, the lower trunk edge material 82 (end trunk edge material) is fixed to the reinforcing member 61.

  With this configuration, the lower end portion 20b of the wall material 20 is fixed to the reinforcing member 61 via the lower trunk edge material 82 (end trunk edge material), so that the wall material 20 is only the column 6A (column material). In addition, it can be fixed by the reinforcing member 61. And the load which acts in each fixed location can be disperse | distributed when the number of the fixed locations of the wall material 20 increases. Thereby, it is possible to prevent stress concentration in the column 6A.

  Moreover, the said lower trunk | drum material 82 (end part trunk | drum material) is made into the wood type member which has no orientation in a fiber direction.

  If there is an orientation in the fiber direction, cracks are likely to occur in the fiber direction, and there is a concern about a sudden decrease in strength. By using a plate material such as plywood, such a rapid decrease in strength is prevented. It becomes possible to do.

Next, the structure of the eaves winning wall 40 will be described with reference to FIGS.
FIG. 6 shows a building wall structure according to an embodiment of the present invention in the eaves winning wall 40. In the example of FIG. 6, columns 106A and 106B are arranged in the vertical direction between the beams 105A and 105B that are horizontally provided in the vertical direction. In addition to the pillars 106A and 106B, the intermediate pillars 107 and 107 are arranged in the vertical direction, and the trunk edge members 108 and 108 are laid across the pillars 106A and 106B and the intermediate pillars 107 and 107, respectively. Further, a moisture-permeable waterproof sheet 109 is disposed on the indoor side of the trunk edge members 108 and 108, and wall materials 120 and 120 are disposed on the outdoor side of the trunk edge members 108 and 108.

  Further, as shown in FIG. 6, the rectangular wall members 120 and 120 that are long in the vertical direction have the upper end 120a fixed to the beam 105A via the upper body edge member 181 and the lower end part 120b has the lower body edge member 182. It is fixed to. In this way, the upper end portion 120a of the wall member 120 is fixed to the upper waistline member 181 because the indoor side end portion of the eaves 41 exists at the midway in the vertical direction of the pillars 106A and 106B. This is because the lower end 120b of the wall member 120 cannot be fixed to the beam 105A. Note that the midway portion in the vertical direction of the wall member 120 is fixed to the trunk edge members 108 and 108.

  Further, as shown in FIG. 6, a reinforcing member 161 that is long in the vertical direction is attached to the side surface 106 a of the column 106 </ b> A (the side surface perpendicular to the longitudinal direction of the upper body edge material 181 and the body edge material 108). Thereby, a pillar member in which the pillar 106A and the reinforcing member 161 are integrated is formed. As shown in FIGS. 7 and 8, the end portions of the upper trunk edge member 181 are fixed to the columns 106 </ b> A and the reinforcing member 161 by fixing members 165 and 165, respectively. In addition, as shown in FIG. 6, the reinforcing member 163 can be similarly attached to the pillar 106B.

  Further, as shown in FIG. 6, the length of the reinforcing member 161 in the vertical direction is configured to be at least larger than the distance between the beam 105A and the upper trunk edge member 181 (the length of the portion where the wall cannot be stretched). With such a setting, it is possible to reinforce the bending rigidity of the column 106A by the reinforcing member 161. Thereby, when a building shakes due to an earthquake or the like, deformation of the pillar 106A can be suppressed.

  Further, as shown in FIG. 7, the reinforcing member 161 is fixed to the column 106 </ b> A by a fixing member 166. 7 shows a state in which only the upper end portion 161a of the reinforcing member 161 is fixed by the fixing member 166. Similarly, other portions of the reinforcing member 161 are similarly fixed by the fixing member. Is fixed to the pillar 106A. Thereby, when a building shakes due to an earthquake or the like, deformation of the pillar 106A can be suppressed.

  As shown in FIGS. 7 and 8, the upper end 161a of the reinforcing member 161 is dimensioned above the upper end 181a of the upper body rim member 181 (the same applies to the upper end 120a of the wall member 120 in this embodiment). It is set as the structure extended only D2. Thereby, when a building shakes due to an earthquake or the like, the load acting on the column 106A can be distributed to the reinforcing member 161 within the range of the dimension D2. If there is no extension of the dimension D2 in the reinforcing member 161, stress concentration occurs in the column 106A at a position corresponding to the upper end 181a of the upper waistband member 181 and a local force acts. However, according to the configuration of the present embodiment, generation of a local force due to such stress concentration can be prevented.

  Further, as shown in FIG. 8, in the present embodiment, water is stored and sealed at the boundary 125 between the eaves 41 and the wall member 120 by sealing or the like.

  Further, as shown in FIG. 7, reinforcing members 161 and 162 are attached to the side surfaces 106a and 106b (side surfaces orthogonal to the longitudinal direction of the upper body edge material 181 and the body edge material 108) on both sides of the column 106A, respectively. The column 106A is sandwiched between the reinforcing members 161 and 162 from both sides. As a result, the pillar member in which the pillar 106A is reinforced from both sides is formed, and the bending rigidity can be reinforced. In the example shown in FIG. 7, the reinforcing member is not attached to the intermediate pillar 7, but the reinforcing member may be attached to the intermediate pillar 7.

  Further, as shown in FIG. 8, the lower end portion 120 b of the wall member 120 is fixed to the beam 105 </ b> B by the fixing member 167 via the lower trunk edge member 182.

  Further, as shown in FIG. 8, the upper end portion 120 a of the wall member 120 is fixed to the upper trunk edge member 181 by a fixing member 168.

  Further, as shown in FIG. 6, the wall member 120 is fixed to the trunk margin members 108 and 108 in addition to the upper trunk margin member 181 and the lower trunk margin member 182.

As described above, as shown in FIGS. 6 to 8, the wall member 120 is fixed to the upper body edge material 181, the lower body edge material 182, and the body edge materials 108 and 108.
When a building shakes due to an earthquake or the like, an integral column member is formed by the column 106A and the reinforcing member 161. Therefore, the column member exhibits high bending rigidity, so that the column 106A is deformed. Will be suppressed.

  As described above, as shown in FIG. 6 to FIG. 8, in the portion where the eaves winning wall 40 is formed, the upper edge member 181 and the trunk are not supported by the upper end 120a of the wall member 120 by the beam 105A. Even in the configuration in which the pillar 106A is supported via the edge member 108, the reinforcing member 161 can suppress the deformation of the pillar 106A, and the seismic performance can be exhibited.

  Further, as shown in FIGS. 7 and 8, the vertical width dimension W3 of the upper waistline material 181 is compared with the vertical width dimension W4 of the other waistline material 108 disposed below the upper waistline material 181. Therefore, it is set to at least twice or more. Thereby, the cross-sectional area of the upper trunk | drum material 181 can be ensured widely. A large number of fixing points by the fixing members 165 and 165 can be secured (four in this embodiment), and stress concentration at each fixing point can be prevented as compared with the case where the number of fixing points is small.

  In particular, as shown in FIG. 6, since the lower end of the wall member 120 is fixed to the beam 105B, a large moment acts on the upper end portion 120a of the wall member 120 at the farthest position with the beam 105B as a fulcrum. Therefore, it is effective to ensure a wide cross-sectional area of the upper trunk rim material 181. In addition, although it does not specifically limit about the member which comprises the upper trunk | rim margin material 181, When considering the ease of the generation | occurrence | production of the crack in a fiber direction etc., when using wood, the plywood without orientation It is preferable to use a wood-based member made of or the like.

As described above, in the second embodiment shown in FIGS.
A building wall structure having a wall member 120 whose upper end 120a is fixed to a column 106A (column member),
The column 106A is provided with a reinforcing member 161 that is long in the vertical direction for preventing the column 106A from being deformed.

  Further, an upper trunk edge material 182 (end trunk edge material) for fixing the upper end portion 20a of the wall material 120 is horizontally mounted on the pillar 106A (column material), and the upper trunk edge material 182 is It is set as the structure which has a larger width dimension than the trunk edge material 108 * 108 installed in another site | part.

  Further, the upper end portion 161a (end portion) of the reinforcing member 161 is configured to extend upward from the upper waistline member 182 (end portion waistband material).

  Further, the upper trunk edge material 182 (end trunk edge material) is fixed to the reinforcing member 161.

Next, the configuration of the third embodiment will be described with reference to FIG.
In the configuration of the third embodiment, the columns 106A and 106B are arranged in the vertical direction between the beams 205A and 205B that are horizontally provided in the vertical direction. In addition to the pillars 206A and 206B, the intermediate pillars 207 and 207 are arranged in the vertical direction, and the trunk edge members 208 and 208 are horizontally mounted on the pillars 206A and 206B and the intermediate pillars 207 and 207.

  Moreover, as shown in FIG. 9, the wall materials 220 and 220 have an arrangement configuration that cannot be passed over the beams 205A and 205B. For this reason, the upper trunk | drum material 281 and the lower trunk | drum material 282 are horizontally laid across the pillar 206A * 206B in the position corresponding to the upper part and the lower part of wall material 220 * 220, respectively.

  And as shown in FIG. 9, in the pillars 206A and 206B, reinforcing members 261 to 264 are attached to locations where the upper waistline material 281 and the lower waistline material 282 are connected, respectively. In this way, an integral column member is formed by the reinforcing members 261 to 264 and the columns 206A and 206B, and this column member exhibits high bending rigidity, so that deformation of the column columns 206A and 206B can be suppressed. . However, the reinforcing members 261 and 263, and 262 and 264 may be a single material.

As described above, in the third embodiment shown in FIG.
A building wall structure having a wall member 220 whose upper end and lower end are fixed to a column 206A (column member),
Reinforcing members 261 to 264 that are long in the vertical direction for preventing deformation of the column 206A are attached to the column 206A.

  In addition, the column 206A (column material) includes an upper trunk edge material 281 (end trunk edge material) for fixing the upper end portion of the wall member 220 and a lower trunk edge material 282 for fixing the lower end portion. The upper trunk rim material 281 and the lower trunk rim material 282 are configured to have a width dimension larger than that of the trunk rim material 208 installed in another part.

  Further, the upper end portion (end portion) of the reinforcing member 261 extends upward from the upper trunk edge material 281 (end portion margin material), and similarly, the lower end portion (end portion) of the reinforcing member 261 is The upper trunk edge material 281 (the end trunk edge material) extends downward, that is, the reinforcing member 261 and the upper trunk edge material 281 are arranged so as to intersect with each other. The lengths of the materials 261 to 264 are configured to be larger than the distance between the beams 205A and 205B and the trunk edge materials 281 and 282 (the length of the portion where the wall cannot be stretched).

  In addition, the upper trunk rim material 281 and the lower trunk rim material 282 (end trunk rim material) are fixed to the reinforcing members 261 to 264.

<Test example>
Next, the effect by the structure of this invention is demonstrated using a test example. The main conditions are as follows.

(1) Specifications FIG. 10 shows an outline of the test.
The specification A has the following specification details in the configuration of FIG.
The specification B is a configuration in which all the reinforcing members 362 are omitted in the configuration of FIG. 10, and the material of the trunk edge material is changed from a plywood to an excessive lumber, and the others are the same as the specification A.
<Specification details>
Upper beam 305A: cross section 105mm x 180mm, length 2730mm (tree species: Yonematsu)
-Lower beam 305B: cross section 105mm x 105mm, length 2730mm (tree species: too much)
-Distance between upper beam upper end and lower beam upper end: 2774 mm
・ Pillar 306A: cross section 105 mm × 105 mm, length 2594 mm (tree species: too much) (tenon to beam)
Interstitial column 307: cross section 27 mm × 105 mm, length 2594 mm (tree species: too much)
・ Space between pillars and studs: 455 mm (common specification)
-Upper trunk rim material 381: 18 mm x 50 mm (tree species: plywood for coniferous structure)
-Lower trunk edge 382: 18 mm x 100 mm (tree species: plywood for coniferous structure)
・ Horizontal trunk material 383: 18 mm x 50 mm (tree species: plywood for coniferous structure)
-Fastening of upper waistline material, lower waistline material, horizontal waistline material: CN65 nail-Siding 300: Thickness 18mm x 455mm width x length 1700mm (Ceramics siding: JISA 5422 product) Vertical tension, 4 sheets Screw: Stainless steel screw: φ5.0mm with truss head L = 50mm
-Reinforcing member 362: 45 mm x 60 mm, length 1200 mm (tree species: too much)
-Distance between reinforcing member 362 and lower beam: 1000 mm
-Extension dimension of the reinforcing member 362 downward: 100 mm
-Reinforcing material fixing screw: Steel screw φ6.0 L = 150mm Fastened to the pillar within 455mm pitch

(2) Test conditions The evaluation test was conducted in accordance with the test method described in the “Testing and Evaluation Work Method for Wooden Bearing Wall and Its Magnification” issued by the Building Materials Testing Center.

(3) Results Table 1 shows the test results of specifications A and B. Moreover, the value which divided the measured value in the specification A by the specification B is shown as a reference value.

(4) Evaluation Evaluation was performed by obtaining “wall strength magnification”.
The “wall strength magnification” is also the four strengths (yield strength Py, ultimate strength Pu, maximum strength Pmax, etc.) used in the wall magnification evaluation described in the “Wooden bearing wall and test method for evaluating the magnification”. It was obtained by using the ultimate yield strength Pu among the yield strength at the time of specific deformation. Specifically, 0.2 × (2 μ−1) ^1/2 × Pu was calculated using Pu obtained in the experiment, and a value obtained by dividing this by the width of the test specimen was defined as “wall strength magnification”. . Here, “μ” represents a plasticity ratio, and is a value obtained from the relationship between the shear deformation angle and the load in the above test.

  As understood from the result in the specification A, a higher wall strength magnification can be obtained by the presence of the reinforcing member. As can be seen from the reference value (A / B), the specification A is 2.5 times the maximum proof stress (Pmax) and 1.6 times the wall strength magnification compared to the specification B without the reinforcing member. The effect of reinforcement was confirmed. Further, in the specification A, it is considered that the use of a material such as the trunk edge member 383 as a plywood also contributes to the improvement of the wall strength magnification.

  As described above, according to the application of the reinforcing member as in the first to third embodiments, which is the configuration of the present invention, in the building wall structure in which the roof winning wall and the eaves winning wall are configured, Can obtain a strong wall strength magnification. Further, the present invention can be applied to a case where an interior wall (inner wall) is configured with an inner wall material, in addition to an exterior wall configured with an outer wall material.

  INDUSTRIAL APPLICATION This invention can be utilized about the technique which comprises a load bearing wall using wall materials, such as ceramic siding, ceramic siding, and metal siding. Furthermore, the configuration of the present invention can be applied to the interior wall for the purpose of improving the seismic performance.

DESCRIPTION OF SYMBOLS 1 Building 5A Beam 5B Beam 6A Column 6B Column 7 Spacer 8 Body edge material 9 Moisture permeable waterproof sheet 20 Wall material 20a Upper end portion 20b Lower end portion 25 Boundary portion 30 Roof winning wall 31 Lower building 40 Eaves wall 41 Eave 61 Member 63 Reinforcement member 81 Upper waist material 82 Lower waist material

Claims (2)

A building wall structure having a wall member in which at least one end in the vertical direction is fixed to a pillar member via an end trunk edge member ,
The column member is provided with a reinforcing member that is long in the vertical direction to prevent deformation of the column member ,
The end trunk material for fixing the end of the wall material is horizontally mounted on the column member,
It said end Doenzai may have a larger width than Doenzai installed in other locations,
The end of the reinforcing member is extended to the upper side or the lower side of the end trunk material ,
The end trunk material is fixed to the reinforcing member ,
The end trunk material is a wood-based member having no orientation in the fiber direction ,
The end trunk edge material is also fixed to the pillar material,
The end trunk edge material is fixed to the reinforcing member at two or more locations in the longitudinal direction of the reinforcing member,
The end trunk edge material is fixed to the column material at two or more locations in the longitudinal direction of the column material,
Building wall structure. It is a building wall construction method having a wall material in which at least one end portion in the vertical direction is fixed to a pillar material via an end trunk material ,
It said column member includes the steps you attached a long reinforcing member in the vertical direction to prevent deformation of the column member,
The column material is an end trunk material for fixing an end portion of the wall material, and has an end trunk material having a larger width dimension than a trunk material installed in another part. A horizontal step,
A step of fixing the end trunk material to the reinforcing member ;
Including a step of fixing the end trunk material to the column member,
The end of the reinforcing member is extended to the upper side or the lower side of the end trunk material,
The end trunk edge material is a wood-based member having no orientation in the fiber direction,
The end trunk edge material is fixed to the reinforcing member at two or more locations in the longitudinal direction of the reinforcing member,
The building outer wall construction method in which the end trunk edge material is fixed to the column material at two or more locations in the longitudinal direction of the column material.

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