Fixing structure for wooden walls and method for fixing wooden walls

Abstract

The present invention provides a fixing structure and method for wooden walls that make it difficult for the joint members of the wooden wall to be exposed. [Solution] The wooden wall fixing structure comprises a wooden wall 30 arranged on the outside of the structural plane of a column-beam frame 10 having columns 12 and beams 16, extending across the upper and lower slabs 20; a joining member 40 that joins the wooden wall 30 to the slabs 20 and is embedded in the wooden wall 30 and the slabs 20; and a wooden beam shell material 18 arranged along the side and bottom surface of the beam 16 opposite to the wooden wall 30, and integrally covering the beam 16 with the wooden wall 30.

Description

Technical Field

[0001] The present invention relates to a fixing structure for a wooden wall and a method for fixing a wooden wall.

Background Art

[0002] The following Patent Document 1 discloses a configuration in which a CLT board and a joining steel plate are fixed with a drift pin, and this joining steel plate is connected to a joining metal fitting attached to a beam or a column.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a configuration where a wooden wall is arranged on the sectional surface of a column-beam structure as shown in the above Patent Document 1, the joining metal fitting often protrudes. However, such protrusion of metal fittings may not be aesthetically pleasing.

[0005] In consideration of the above facts, an object of the present invention is to provide a fixing structure for a wooden wall and a method for fixing a wooden wall in which the joining members of the wooden wall are difficult to protrude.

Means for Solving the Problems

[0006] The fixing structure for a wooden wall according to claim 1 includes a wooden wall arranged across upper and lower slabs on the outside of the sectional surface of a column-beam structure having columns and steel beams, a joining member that joins the wooden wall to the slabs and is embedded in the wooden wall and the slabs, and a wooden beam outer shell material that is arranged along the side surface and the lower surface of the steel beam on the side opposite to the wooden wall and integrally covers the steel beam with the wooden wall.

[0007] In the wooden wall fixing structure of claim 1, the wooden wall is positioned outside the structural plane of the column-beam frame, spanning across the upper and lower slabs, and is joined to the slabs. This eliminates the need for metal fittings to join the wooden wall to the steel beam, compared to a configuration in which the wooden wall is joined to the steel beam inside the structural plane of the column-beam frame.

[0008] Furthermore, the connecting members that join the wooden wall to the slab are embedded in the wooden wall and slab and are not exposed. This results in a higher aesthetic appearance compared to cases where the connecting members are exposed.

[0009] Furthermore, the wooden wall integrally covers the steel beam with the wooden beam shell. In other words, the wooden wall also serves as the beam shell. This reduces construction effort compared to forming the wooden wall and beam shell separately.

[0010] The wooden wall fixing structure of claim 2 is the wooden wall fixing structure of claim 1, wherein the joining member is a steel plate whose central portion is embedded in the slab, whose upper and lower ends protrude from the slab, and which is joined to adjacent wooden walls on either side of the slab.

[0011] In the wooden wall fixing structure of claim 2, a single steel plate is placed across the upper and lower wooden walls and joined to each of the wooden walls. This allows stress to be transmitted between the upper and lower wooden walls.

[0012] The wooden wall fixing structure of claim 3 is the wooden wall fixing structure of claim 1 or 2, wherein the column is a steel column, and has a wooden column shell covering the steel column, and the column shell and the wooden wall are joined to each other.

[0013] In the wooden wall fixing structure of claim 2, the wooden column shell covering the steel column and the wooden wall are joined to each other. This allows stress to be transmitted between the column shell and the wooden wall.

[0014] The wooden wall fixing structure of claim 4 is the wooden wall fixing structure of claim 1 or 2, wherein the wooden wall has through holes that penetrate in the vertical direction, and restraining members are inserted through the through holes of at least two wooden walls that are adjacent to each other vertically with the slab in between, to suppress relative vertical movement between the wooden walls.

[0015] In the wooden wall fixing structure of claim 4, the upper and lower wooden walls are constrained from each other, so that stress can be transmitted between the upper and lower wooden walls even when the frame deforms.

[0016] The method for fixing a wooden wall according to claim 5 comprises the steps of: forming a column-beam frame having columns and steel beams; arranging a wooden wall on a lower slab outside the structural surface of the column-beam frame; pouring concrete for an upper slab above the wooden wall and embedding connecting members protruding from the wooden wall into the upper slab to join the wooden wall to the upper slab; and arranging wooden beam outer shell materials along the side and bottom surfaces of the steel beam opposite to the wooden wall to cover the steel beam integrally with the wooden wall.

[0017] In the wooden wall fixing structure of claim 5, the wooden wall is positioned outside the structural plane of the column-beam frame, spanning across the upper and lower slabs, and joined to these slabs. This eliminates the need for metal fittings to join the wooden wall to the steel beam, compared to the method of joining the wooden wall to the steel beam inside the structural plane of the column-beam frame.

[0018] Furthermore, the connecting members that join the wooden wall to the slab are embedded in the wooden wall and slab and are not exposed. This results in a higher aesthetic appearance compared to cases where the connecting members are exposed.

[0019] Furthermore, the wooden wall integrally covers the steel beam with the wooden beam shell. In other words, the wooden wall also serves as the beam shell. This reduces construction effort compared to forming the wooden wall and beam shell separately. [Effects of the Invention]

[0020] According to the present invention, the joint members of the wooden wall are less likely to be exposed.

Brief Description of the Drawings

[0021] [Figure 1] (A) is an elevation view showing the fixing structure of a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 2] (A) is an elevation view showing the state where a column-beam structure is constructed in the method for fixing a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 3] (A) is an elevation view showing the state where a column is covered with a column outer shell material in the method for fixing a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 4] (A) is an elevation view showing the state where a wooden wall is fixed to a column outer shell material in the method for fixing a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 5] (A) is an elevation view showing the state where a slab is placed above a wooden wall in the method for fixing a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 6] (A) is an elevation view showing the state where a wooden wall is fixed to a beam outer shell material in the method for fixing a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 7] (A) is an elevation view showing the state where a wooden wall is installed above a slab in the method for fixing a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 8] (A) is an elevation view showing a modified example of a joining member that joins a column outer shell material and a wooden wall in the fixing structure of a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A). [Figure 9] (A) is an elevation view showing a modified example in which a restraint member is provided instead of a joining member that joins a column outer shell material and a wooden wall in the fixing structure of a wooden wall according to an embodiment of the present invention, and (B) is a sectional view taken along line B-B in (A).

Embodiments for Carrying Out the Invention

[0022] Hereinafter, a wooden wall fixing structure and a wooden wall fixing method according to embodiments of the present invention will be described with reference to the drawings. Components indicated by the same reference numerals in each drawing are considered to be the same component. However, unless otherwise specified in the specification, each component is not limited to one, and there may be multiple such components.

[0023] Furthermore, explanations of redundant components and reference numerals in each drawing may be omitted. This disclosure is not limited to the following embodiments, and modifications can be made as appropriate within the scope of the purpose of this disclosure, such as omitting components, substituting them with different components, or combining one embodiment with various modifications.

[0024] In each drawing, the directions indicated by arrows X and Y are along the horizontal plane and are perpendicular to each other. The direction indicated by arrow Z is along the vertical direction (up and down). In each drawing, the directions indicated by arrows X, Y, and Z are assumed to coincide with each other.

[0025] <Fixing structure for wooden walls> Figure 1 shows a fixing structure for a wooden wall according to an embodiment of the present invention. This fixing structure comprises a column 12, a column outer shell 14, a beam 16, a beam outer shell 18, a slab 20, a wooden wall 30, and connecting members 40 and 50.

[0026] (Columns, beams, slabs) The columns 12 and beams 16 are steel members and form the column-beam frame 10. For the columns 12, square steel pipes or cross-shaped steel frames can be used. The beams 16 are H-shaped steel and are fixed to the sides of the columns 12. The columns 12 and beams 16 can bear the long-term loads of the building.

[0027] The column outer shell 14 is a wooden member that covers the outer circumference (all four sides) of the column 12. The beam outer shell 18 is also a wooden member, similar to the column outer shell 14, and partially (more details will be described later) covers the outer circumference of the beam 16. Both ends of the beam outer shell 18 in the axial direction of the beam 16 are joined to the column outer shell 14.

[0028] Note that in Figure 1(A), the beam shell material 18 in the front-to-back direction (Y direction) of the paper is omitted. The same applies to the illustration of the beam shell material 18 in the left-to-right direction (Y direction) of the paper in Figure 1(B).

[0029] Slab 20 is a reinforced concrete slab that is erected on beam 16. Stud bolts 16A are welded to the upper flange of beam 16. The stud bolts 16A are embedded in slab 20.

[0030] (Wooden wall) The wooden wall 30 is a seismic wall positioned across the upper and lower slabs 20. The wooden wall 30 is fixed to the upper and lower slabs 20 and can bear the short-term loads of the building. The wood used to form the wooden wall 30 is not particularly limited, but as an example, CLT (Cross Laminated Timber) is used. Various types of laminated timber such as LVL (Laminated Veneer Lumber), solid wood, structural plywood, etc. can also be used to form the wooden wall 30.

[0031] As shown in Figure 1(B), the wooden wall 30 is positioned outside the structural plane of the column-beam frame 10. "Outside the structural plane of the column-beam frame 10" refers to the area outside the structural plane enclosed by the columns 12 and beams 16, and is the part that does not overlap with the beams 16 in a plan view.

[0032] The wooden wall 30 is positioned along one side of the beam 16. In addition, the beam shell material 18 is positioned along the side and bottom of the beam 16 opposite to the wooden wall 30.

[0033] (Joining the wooden wall and the beam casing) The wooden wall 30 is joined to the beam shell material 18 by a connecting member 50. As a result, the upper end of the wooden wall 30 and the beam shell material 18 integrally cover the beam 16. In other words, the upper end of the wooden wall 30 covers the beam 16 as part of the beam shell material 18.

[0034] The method of joining the wooden wall 30 and the beam shell material 18 is not particularly limited, but in this embodiment, GIR (Glued in Rod) is used as the joining member 50. GIR is a joining method that comprises insertion holes formed in the beam shell material 18 and the wooden wall 30, a rod inserted through these insertion holes, and adhesive filled between the insertion holes and the rod.

[0035] (Joining the wooden wall to the outer shell of the column) As shown in Figure 1(A), the wooden wall 30 is joined to the column outer shell 14 by joining members 50. The method of joining the wooden wall 30 and the column outer shell 14 is not particularly limited, but in this embodiment, the same joining members 50 as those used for joining the wooden wall 30 and the beam outer shell 18 are used. The joining members 50 that join the wooden wall 30 and the column outer shell 14 are provided at least in two locations between the upper and lower slabs 20.

[0036] (Joining the wooden wall and the slab) The wooden wall 30 is joined to the slab 20 by a connecting member 40. The connecting member 40 is embedded in the wooden wall 30 and the slab 20.

[0037] The joining member 40 comprises a steel plate 42 and a drift pin 44. The steel plate 42 is a plate in which the central part is embedded in the slab 20, the upper and lower ends protrude from the slab 20, and are joined to adjacent wooden walls 30 on either side of the slab 20.

[0038] The drift pin 44 is a steel rod that penetrates the lower end of the steel plate 42 and the wooden wall 30 below the slab 20. The drift pin 44 also penetrates the upper end of the steel plate 42 and the wooden wall 30 above the slab 20.

[0039] The connecting members 40 are positioned at the top and bottom of the wooden wall 30, respectively, and fix the wooden wall 30 to the upper and lower slabs 20. In addition, the connecting members 40 are provided at multiple locations along the axial direction of the beam 16. For example, the connecting members 40 are provided at three locations: the center and both ends of the beam 16.

[0040] <Method for securing wooden walls> A method for fixing the wooden wall 30 to the beam outer shell 18, column outer shell 14, and slab 20 will be described.

[0041] First, a column-beam frame 10, comprising columns 12 and beams 16, is constructed as shown in Figures 2(A) and (B). Note that in Figure 2(A), etc., the stud bolts 16A of the beams 16 along the left-right direction of the paper (X direction) are not shown. The same applies to the stud bolts 16A of the beams 16 along the left-right direction of the paper (Y direction) in Figure 2(B), etc.

[0042] Next, as shown in Figures 3(A) and (B), the columns 12 are covered with the column outer shell material 14. After covering the columns 12 with the column outer shell material 14, the process described using Figures 4 to 7 is repeated for each floor, from the lower floors to the upper floors. Note that the process of covering the columns 12 with the column outer shell material 14 may also be performed for each floor.

[0043] In the process shown in Figures 4(A) and (B), a wooden wall 30 is placed on the outside of the column-beam frame 10, along one side of the beam 16. The wooden wall 30 is placed on a slab 20 (not shown).

[0044] At this time, as shown in Figure 4(B), the wooden wall 30 and the beam 16 are temporarily fixed using angle members 60, etc. Then, as shown in Figure 4(A), the wooden wall 30 is joined to the column outer shell 14 using connecting members 50. In addition, the steel plate 42 is joined to the upper end of the wooden wall 30 using drift pins 44.

[0045] Next, as shown in Figures 5(A) and (B), a slab 20 is formed above the beam 16. When forming the slab 20, concrete is poured while a formwork (not shown) is supported by scaffolding. The concrete is poured so that the steel plate 42 protruding from the upper end of the wooden wall 30 also protrudes from the slab 20. After the concrete hardens, the formwork and scaffolding are removed.

[0046] After the slab 20 is formed, the beam shell members 18 are placed as shown in Figures 6(A) and (B). The beam shell members 18 are joined to the column shell members 14 at both ends. The beam shell members 18 are also joined to the wooden wall 30 by connecting members 50. When placing the beam shell members 18, the angle members 60 are removed.

[0047] Then, as shown in Figures 7(A) and (B), the wooden wall 30 is placed on the slab 20. At this time, the wooden wall 30 is joined to the steel plate 42 using drift pins 44. Through the above steps, the wooden wall 30 is fixed to the beam outer shell 18, the column outer shell 14 and the slab 20.

[0048] <Mechanism and Effects> In the wooden wall fixing structure according to an embodiment of the present invention, as shown in Figure 1(B), the wooden wall 30 is positioned outside the structural plane of the column-beam frame 10 formed by columns 12 and beams 16, spanning across the upper and lower slabs 20, and is joined to the slabs 20.

[0049] As a result, metal fittings are not required to connect the wooden wall 30 and the beam 16 in a configuration in which the wooden wall 30 is joined to the beam 16 within the structural plane of the column-beam frame 10.

[0050] Furthermore, the connecting members 40 that join the wooden wall 30 to the slab 20 are embedded in the wooden wall 30 and the slab 20. In particular, the steel plate 42 is not exposed from the wooden wall 30 and the slab 20. This results in a higher aesthetic appearance compared to cases where any connecting members are exposed.

[0051] In the joining member 40, a single steel plate 42 is positioned across the upper and lower wooden walls 30 and joined to each wooden wall 30 with drift pins 44. This allows stress to be transmitted between the upper and lower wooden walls 30.

[0052] Furthermore, in this fixed structure of the wooden wall 30, the wooden column shell material 14 covering the column 12 and the wooden wall 30 are joined to each other by a connecting member 50. This allows stress to be transmitted between the column shell material 14 and the wooden wall 30.

[0053] Furthermore, the wooden wall 30 integrally covers the beam 16 with the wooden beam shell material 18. In other words, the wooden wall 30 also serves as the beam shell material 18. This reduces construction effort compared to the case where the wooden wall 30 and the beam shell material 18 are formed separately.

[0054] <Other Embodiments> In the above embodiment, the wooden column shell material 14 covering the column 12 and the wooden wall 30 are joined to each other by a joining member 50, and GIR (Glued in Rod) is used as the joining member 50, but the embodiments of the present invention are not limited to this.

[0055] For example, instead of the joining member 50, the joining member 52 shown in Figures 8(A) and (B) may be used. The joining member 52 comprises a steel plate 52A and a drift pin 52B.

[0056] The steel plate 52A is positioned across the column outer shell 14 and the wooden wall 30, and is embedded in the column outer shell 14 and the wooden wall 30. Furthermore, the steel plate 52A is positioned along approximately the entire length of the wooden wall 30. The drift pins 52B are also positioned at intervals along approximately the entire length of the wooden wall 30.

[0057] According to this embodiment, the restraining force between the column outer shell material 14 and the wooden wall 30 is greater than when a connecting member 50 is used. This makes it easier for the wooden wall 30 to exhibit its earthquake-resistant effect.

[0058] Alternatively, instead of the connecting member 50, a restraining member 54 as shown in Figures 9(A) and (B) may be used. When using the restraining member 54, a through hole 56 is formed in the wooden wall 30 that penetrates vertically. The restraining member 54 is then inserted through the through hole 56.

[0059] The restraining member 54 is, for example, a steel rod, and prestress may be introduced. The restraining member 54 is inserted continuously through holes 56 in at least two wooden walls 30 that are adjacent to each other vertically with the slab 20 in between, in order to suppress the relative vertical movement of at least two wooden walls 30.

[0060] The upper and lower ends of the restraining member 54 are fixed to the beam 16, slab 20, or wooden wall 30, and the relative vertical movement of the wooden wall 30 positioned between these ends is suppressed. By using such a restraining member 54, it is not necessary to join the wooden wall 30 to the column outer shell 14.

[0061] Multiple restraining members 54 can also be used by connecting them with joint members (not shown). In this case, a notch 32 can be provided in the wooden wall 30, and the joint member can be placed in the portion where the notch 32 is formed.

[0062] Furthermore, although the above embodiment uses a steel column for column 12, the embodiments of the present invention are not limited to this. For example, column 12 may be a reinforced concrete column or a steel-reinforced concrete column.

[0063] Furthermore, in the above embodiment, the wooden wall 30 is joined to the beam shell material 18 by a joining member 50, but the embodiments of the present invention are not limited to this. For example, the wooden wall 30 and the beam shell material 18 do not necessarily have to be joined. Even without joining them, the beam 16 can be covered with the wooden wall 30 and the beam shell material 18.

[0064] Thus, the "wooden beam shell material that integrally covers the steel beam with the wooden wall" in this invention also includes a configuration in which the wooden wall 30 and the beam shell material 18 are not joined together. In this way, the present invention can be implemented in various forms. [Explanation of Symbols]

[0065] 10 Column beam frame 12 pillars 14 Column shell material 16. Beams (steel beams) 20 slabs 30 Wooden wall 40 Joining members 42 Steel plate (joining member) 44. Drift pin (joining member) 54 Restraint material 56 Through hole

Claims

1. On the outside of the structural plane of a column-beam frame having columns and steel beams, a wooden wall is arranged across the upper and lower slabs, The wooden wall is joined to the slab, and a joining member is embedded in the wooden wall and the slab, A wooden beam shell material is arranged along the side and bottom surface of the steel beam opposite to the wooden wall, and integrally covers the steel beam with the wooden wall, Equipped with, A fixed structure for wooden walls.

2. The aforementioned joining member is The central part is embedded in the slab, The upper and lower ends of the steel plate protrude from the slab and are joined to the adjacent wooden walls above and below the slab, respectively. The wooden wall fixing structure according to claim 1.

3. The aforementioned column is a steel column. The steel column has a wooden outer shell material covering it, The column outer shell and the wooden wall are joined to each other. The wooden wall fixing structure according to claim 1 or 2.

4. The aforementioned wooden wall has through holes formed in it that penetrate vertically. A restraining member is inserted through the through-holes of at least two of the wooden walls that are adjacent to each other vertically, with the slab in between, to suppress relative vertical movement between the wooden walls. The wooden wall fixing structure according to claim 1 or 2.

5. A process of forming a column-beam frame having columns and steel beams, The process involves placing a wooden wall on the lower slab on the outside of the structural plane of the column-beam frame, The process involves pouring concrete for the upper slab above the wooden wall, embedding the connecting members protruding from the wooden wall into the upper slab, and joining the wooden wall to the upper slab. A step of arranging wooden beam outer shell material along the side and bottom surface of the steel beam opposite to the wooden wall, thereby integrally covering the steel beam with the wooden wall, Equipped with, How to secure a wooden wall.

Images