Wall structure made of wood materials

Abstract

To provide a wall structure of wood materials as a wall component capable of achieving excellent workability, high strength, and lightweight wall structure using wood materials that are shaped in a specified shape and dimensions and capable of being lightweight for easy handling for openings in column-beam structures.SOLUTION: A wall 1 is constructed using multiple octagonal blocks 5 of the same size made of wood material. In the octagonal block, the horizontal side x is formed parallel to the direction of the fibers f of the wood material, and the vertical side y is formed by intersecting with the direction of the fibers of the wood material. The multiple octagonal blocks include columns and beams arranged in the same direction so that the fibers of the wood material all face in the same direction in the opening 4. In an arrangement where equal-length vertical sides face each other and equal-length horizontal sides face each other, the vertical side of the octagonal block facing column 2 faces the column, and the horizontal edge of the octagonal block facing beam 3 faces the beam.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] This invention relates to a wall structure made of wooden materials that uses wooden materials that are standard in shape and lightweight for easy handling as the structural components of the wall for the openings in the column-beam frame, and that achieves excellent workability, high strength, and a lightweight wall itself. [Background technology]

[0002] There is growing attention being paid to the need to prevent global warming, utilize forest resources, and revitalize forestry, and there is also a need to actively utilize wood materials from the perspective of ESG investment and SDGs.

[0003] Wood materials are reusable and are an excellent way to utilize sustainable resources.

[0004] Patent Documents 1 and 2 are known as construction technologies that use wooden materials.

[0005] The "wooden structural member, joint structure for wooden structural members, and construction method thereof" of Patent Document 1 aims to provide a wooden structural member, a joining method for wooden structural members, and a construction method for a joint structure for wooden structural members that enables long-span construction of wooden semi-fireproof structures with a fire margin design, and that is low-cost, has a short delivery time, and is easy to assemble on-site.The wooden member of the wooden structural member is formed by stacking an inner wooden board placed in the center and a pair of outer wooden boards that sandwich the inner wooden board from both sides.A predetermined fire margin layer is provided on the outer periphery of the wooden member, and the area inside this fire margin layer is used as a load-bearing section, making the entire wooden structural member semi-fireproof.

[0006] The "shear wall" of Patent Document 2 aims to provide a shear wall with excellent earthquake resistance using wood-based materials, and the shear wall is installed within the structural plane of a column-beam frame. The shear wall includes a wooden wall portion formed by arranging multiple wooden boards with their longitudinal grain direction in a row, and a closing portion formed by closing the gap between the periphery of the wooden wall portion and the column-beam frame with mortar. The angle of the wooden boards is the angle of the diagonal of the column-beam frame. When a horizontal external load is applied to the column-beam frame due to an earthquake or other event, a tensile or compressive force acts in the diagonal direction within the structural plane of the column-beam frame. Because the wooden boards have a high Young's modulus and strength in the grain direction, they can sufficiently resist this tensile or compressive force, thereby demonstrating excellent earthquake resistance. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-14154 [Patent Document 2] Patent Publication No. 2021-147816 Summary of the Invention [Problem to be solved by the invention]

[0008] In the wall of Patent Document 2, the multiple wooden boards arranged within the structural surface must be shaped to different dimensions to match the column and beam dimensions in the diagonal direction specific to each column-beam frame, posing a problem in that manufacturing the wooden boards is time-consuming.

[0009] Furthermore, when wooden boards are used to span the diagonal corners of a column-beam structure, they become quite large, which makes it difficult to take full advantage of the advantage of wooden boards being lightweight, and also makes them difficult to install.

[0010] The present invention was devised in view of the above-mentioned problems of the prior art, and aims to provide a wall structure made of wooden materials that is easy to work with, has high strength, and is lightweight, and that uses wooden materials that have a fixed shape and can be easily handled for the openings in the post-and-beam structure as the structural components of the wall. [Means for solving the problem]

[0011] The wall structure made of wood material according to the present invention is a wall structure constructed inside an opening section defined by columns and beams, and uses a plurality of octagonal blocks made of wood material of the same dimensions, each having a pair of two horizontal sides, upper and lower, that are parallel to each other and of equal length, a pair of two vertical sides, left and right, that are parallel to each other and of equal length, and two pairs of four oblique sides that are parallel to each other and of equal length connecting the vertical sides and the horizontal sides, and one of the vertical sides or the horizontal sides of the octagonal blocks is formed parallel to the direction of the grain of the wood material. , or the other is formed so as to intersect with the direction of the fibers of the wood material, and the multiple octagonal blocks are arranged inside the opening portion so that the fibers of the wood material are all oriented in the same direction, the vertical sides of equal length face each other and the horizontal sides of equal length face each other, and the vertical sides of the octagonal blocks facing the columns face the columns, and the horizontal sides of the octagonal blocks facing the beams face the beams, thereby constructing a wall.

[0012] At least two walls are constructed side by side inside the opening in the width direction of the columns and beams, and one of these walls has the vertical side of the octagonal block parallel to the fiber direction of the wood material, and the other of these walls has the horizontal side of the octagonal block parallel to the fiber direction of the wood material.

[0013] The multiple octagonal blocks are characterized in that the opposing vertical sides and horizontal sides are glued to each other inside the opening, the vertical side of the octagonal block facing the column is glued to the column, and the horizontal side of the octagonal block facing the beam is glued to the beam.

[0014] A gap sealant is disposed in the gap between the oblique side of the octagonal block and the pillar or beam inside the opening, and is adhered to the oblique side and the pillar or beam.

[0015] The multiple octagonal blocks are characterized in that the opposing vertical sides and horizontal sides are glued to each other inside the opening, and gap sealants are arranged between the columns or beams and the octagonal blocks facing them, and the octagonal blocks are glued to the gap sealants, and the gap sealants are glued to the columns or beams.

[0016] The octagonal block is a laminated material made by stacking and integrating multiple octagonal board pieces in the width direction of the columns and beams, and these octagonal board pieces are characterized in that the fibers of the wood material are all aligned in the same direction.

[0017] The octagonal block is a laminated material made by stacking and integrating multiple octagonal board pieces in the width direction of the columns and beams, and these octagonal board pieces are characterized by the fact that the fibers of the wood material are oriented in a staggered pattern. [Effects of the Invention]

[0018] In the wall structure made of wood materials according to the present invention, the wall can be constructed using lightweight wood materials that are standard in shape and easy to handle for the openings in the post-and-beam frame, resulting in excellent workability, high strength, and a lightweight wall itself. [Brief explanation of the drawings]

[0019] [Figure 1]1 is a front view showing a preferred embodiment of a wall structure made of wood materials according to the present invention; [Figure 2] FIG. 2 is an explanatory diagram of an octagonal block and a gap sealing block applied to the wall structure shown in FIG. 1. [Figure 3] FIG. 3 is an explanatory diagram of the configuration of the octagonal block shown in FIG. 2(a) in the thickness direction (width direction of the columns and beams). [Figure 4] FIG. 2 is an explanatory diagram of the resistance action of the wall structure shown in FIG. 1 against a horizontal external force. [Figure 5] FIG. 2 is an explanatory diagram showing how two wall structures shown in FIG. 1 are constructed side by side in a single opening portion. [Figure 6] FIG. 3 is an explanatory diagram of a modified example of the octagonal block shown in FIG. 2(a). [Figure 7] FIG. 7 is an explanatory diagram of the configuration of the octagonal block in the thickness direction (width direction of the columns and beams) according to the modified example shown in FIG. 6. [Figure 8] 10A and 10B are explanatory diagrams illustrating examples of other octagonal block shapes that can be applied to the wall structure made of wood materials according to the present invention. [Figure 9] FIG. 10 is a front view of a main part showing a modified example of a wall structure made of wood materials according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0020] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a wall structure made of wood materials according to the present invention will be described in detail below with reference to the accompanying drawings.

[0021] As shown in FIG. 1, a column-and-beam frame consisting of columns 2 and beams 3 is partitioned by a pair of columns 2 on the left and right and a pair of beams 3 on the top and bottom, forming a rectangular opening 4.

[0022] A wall 1 made of wood material is constructed in this opening 4, and the wall 1 is adhered to columns 2 and beams 3 to form a wall structure.

[0023] In this embodiment, as shown in Figures 1 and 2, the wall 1 is composed of multiple octagonal blocks 5 made of wooden material of the same size that are lined up and stacked in the opening 4, and gap sealing blocks 6, 7 made of wooden material that seal the gaps that occur between these octagonal blocks 5 and the columns 2 and beams 3.

[0024] FIG. 2(a) is a front view of an octagonal block 5, FIG. 2(b) is a front view of one gap sealing block 6 described below, and FIG. 2(c) is a front view of the other gap sealing block 7 described below.

[0025] The gap sealing blocks 6, 7 are formed with a fitting margin to fill and seal the gap between the column 2 or beam 3 and the vertical side y, horizontal side x, and oblique side w of the octagonal block 5 facing them.

[0026] The octagonal block 5 has its vertical side y, horizontal side x, and oblique side w joined to the gap sealing blocks 6, 7, which are then joined to the columns 2 and beams 3, thereby constructing the wall 1.

[0027] The octagonal block 5 has a constant thickness, and its outer contour has a pair of two horizontal sides x, one above the other, that are parallel to each other and of equal length, a pair of two vertical sides y, one below the other, that are parallel to each other and of equal length, and four pairs of oblique sides w, that are parallel to each other and of equal length, connecting the vertical sides y and the horizontal sides x.

[0028] In the illustrated example, the octagonal block 5 is a regular octagon with eight sides x, y, and w all having the same length.

[0029] The octagonal block 5 may be a shape other than a regular octagon, and for example, the length of the vertical side y and the length of the horizontal side x may be different.

[0030] In the following description, an octagonal block 5 having a regular octagon will be described, but the same understanding can be given to an octagonal block 5 that is not a regular octagon.

[0031] The gap sealing blocks 6 and 7 have the same thickness as the octagonal block 5, and two types are used.

[0032] One of the gap sealing blocks 6 is provided in a line up and down the column 2 and in the left and right directions of the beam 3, except for the corners 4a of the opening portion 4.

[0033] One gap sealing block 6 has a first surface 6a that is joined to a pair of adjacent octagonal blocks 5 above and below or to the left and right, a second surface 6b that is joined to a column 2 or a beam 3, and a pair of end surfaces 6c that are joined to another adjacent gap sealing block 6 or another gap sealing block 7.

[0034] The first surface 6a is formed to have angled portions that abut against the hypotenuse w of a pair of adjacent octagonal blocks 5, and flat portions on both sides of the angled portions that abut over half the length of the vertical side y or horizontal side x of the octagonal blocks 5. The second surface 6b is formed flat so as to abut against the column 2 or beam 3.

[0035] The other gap sealing block 7 is provided at the corner 4a of the opening 4. The other gap sealing block 7 has a first surface 7a joined to one of the octagonal blocks 5 facing the corner 4a, a second surface 7b joined to the column 2 and the beam 3 at the corner 4a, and a pair of end surfaces 7c joined to the end surface 6c of one of the adjacent gap sealing blocks 6.

[0036] The first surface 7a is formed to have an inclined portion that abuts against the hypotenuse w of the octagonal block 5, and flat portions on both sides of the inclined portion that abut against the vertical side y and horizontal side x of the octagonal block 5 over half their lengths.

[0037] The second surface 7b is formed in an L-shape so as to abut against both the column 2 and the beam 3 at the corner portion 4a.

[0038] The surfaces 6a to 6c and 7a to 7c of these gap sealing blocks 6 and 7 are used as joints that are bonded to the octagonal block 5, the columns 2, the beams 3, and the blocks 6 and 7 themselves with an adhesive.

[0039] Regarding the arrangement of the octagonal block 5 and gap sealing blocks 6, 7 inward of the opening portion 4, the octagonal block 5 is arranged vertically and horizontally in the column direction (up and down along the axial direction of the column) and beam direction (left and right along the axial direction of the beam) of the opening portion 4.

[0040] In this case, adjacent octagonal blocks 5 are always arranged so that their vertical sides y face each other and their horizontal sides x face each other and come into contact with each other.

[0041] That is, as shown in FIG. 1, the octagonal blocks 5 are arranged in a "matrix" configuration, with rows in the vertical direction and columns in the horizontal direction.

[0042] Adjacent octagonal blocks 5 are bonded together with adhesive at their abutting vertical sides y and horizontal sides x.

[0043] In this way, the vertical side y and the horizontal side x of the octagonal block 5 are joints with other octagonal blocks 5 .

[0044] Four octagonal blocks 5 joined together and adjacent to each other on the top, bottom, left and right sides define a diamond-shaped (square-shaped) opening S by surrounding it with their oblique sides w.

[0045] Generally, due to the dimensional relationship between the opening 4 and the octagonal block 5, a gap occurs between the column 2 or beam 3 and the vertical side y or horizontal side x of the octagonal block 5 facing them, and due to this gap, it is often impossible to abut the octagonal block 5 directly against the column surface 2a or beam surface 3a.

[0046] That is, of the octagonal blocks 5, the octagonal blocks 5 facing the column 2 and the beam 3 have their vertical sides y and horizontal sides x facing the column surface 2a and the beam surface 3a with a gap therebetween.

[0047] At the corner 4a of the opening 4, the hypotenuse w of the octagonal block 5 faces the corner 4a across a gap.

[0048] The gap sealing blocks 6 and 7 are provided to seal these gaps, that is, to adjust the fit of the octagonal block 5.

[0049] The octagonal block 5 is joined to the column surface 2a and the beam surface 3a via these gap sealing blocks 6 and 7.

[0050] By using gap sealing blocks 6, 7 with such fit allowances, a wall 1 made of octagonal blocks 5 can be constructed inside the opening 4 even if the octagonal blocks 5 cannot be placed directly against the column surface 2a or beam surface 3a.

[0051] As described above, the octagonal block 5 and the gap sealing blocks 6, 7 are arranged inside the opening 4 and bonded together to form a wall structure.

[0052] The adhesive is preferably an epoxy resin or the like that permeates the wood material, and the strength of the wood material is increased by the adhesive that permeates the bonded surfaces.

[0053] The octagonal block 5 is preferably an octagon in which the length of the hypotenuse w is shorter than the vertical side y and / or the horizontal side x, rather than a regular octagon, because this increases the strength of the vertical side y and the horizontal side x where the adhesive is applied.

[0054] Next, a detailed description will be given of the structure of the octagonal block 5. The octagonal block 5 made of a wooden material is formed so as to make use of the fibers f contained in the wooden material.

[0055] Specifically, as shown in Figures 1 and 2(a), the octagonal block 5 has a horizontal side x formed parallel to the direction of the fibers f of the wood material, and a vertical side y formed so as to intersect at right angles with the direction of the fibers f of the wood material.

[0056] Alternatively, the octagonal block 5 is formed so that the vertical side y is parallel to the direction of the fibers f of the wood material, and the horizontal side x intersects the direction of the fibers f of the wood material at a right angle.

[0057] In short, the octagonal block 5 is formed so that the horizontal side x or vertical side y is parallel to the direction of the fibers f of the wood material, and the octagonal block 5 thus formed is used in its original orientation or rotated 90 degrees.

[0058] The horizontal side x or vertical side y being parallel to the direction of the fibers f means that the direction of the fibers f, which are aligned in one direction in the wood material, and the horizontal side x or vertical side y should essentially be approximately parallel.

[0059] Therefore, when we say that the vertical side y or the horizontal side x intersects with the direction of the fibers f, we mean that the direction of the fibers f, which are aligned in one direction in the wood material, and the vertical side y or the horizontal side x should essentially be oriented in a direction that roughly intersects with each other.

[0060] It is also preferable that the fiber direction of the gap sealing blocks 6, 7 be aligned to match the fiber direction of the wood material in each of the octagonal blocks 5 with which they are in contact.

[0061] In each octagonal block 5 thus constructed, the direction parallel to the direction of the fibers f of the wood material is the strong axis direction SA with respect to the tensile force, and especially the compressive force C, as shown in FIG. 2(a).

[0062] In addition, the direction of each octagonal block 5 itself, which intersects with the direction of the fibers f of the wood material, becomes the weak axis direction WA with respect to the compressive force, and especially the tensile force T.

[0063] The octagonal block 5 can be formed in various ways as shown in Figure 3. Figure 3(a) is a side view of a raw material such as a cylindrical log cut in the direction of the grain to form a sawn board.

[0064] FIG. 3(b) is a side view of a laminated material in which sawn boards are used as octagonal plate pieces 5a, and these octagonal plate pieces 5a are stacked and integrated.

[0065] In this case, all the octagonal board pieces 5a are aligned so that the fibers f of the wood material are oriented in substantially the same direction, and are overlapped in the width direction of the pillars 2 and the beams 3.

[0066] Figure 3(c) is a side view of a laminated material in which thin plates are created from raw material logs, such as cylindrical logs, using a peeling method, and multiple octagonal plate pieces 5a cut from these thin plates are stacked and integrated together.

[0067] In this case as well, all the octagonal board pieces 5a are aligned so that the orientation of the fibers f of the wood material is substantially the same, and are overlapped in the width direction of the pillars 2 and the beams 3.

[0068] The multiple octagonal blocks 5 arranged as described above inside the opening portion 4 are arranged and glued in the vertical and horizontal directions (towards the columns and beams) with equal-length vertical sides y and horizontal sides x facing each other so that the directions of the fibers f of the wood material in all of the octagonal blocks 5 are all substantially roughly the same.

[0069] FIG. 1 shows a case where the direction of the fibers f of the wood material is parallel to the horizontal side x, and therefore, the fibers f appear in the wall 1 with their direction aligned in the left-right direction.

[0070] Although not shown, when the direction of the fibers f of the wood material is parallel to the vertical side y, the fibers f appear in the wall 1 with their orientation aligned in the vertical direction.

[0071] By providing octagonal blocks 5 or the like in an arrangement in which the fibers f of the wood material are aligned in one direction, either left-right or up-down, it is possible to create design effects on the front and back surfaces of the wall 1.

[0072] As shown in Figures 1 and 4, inside the opening 4, where octagonal blocks 5 are stacked between upper and lower beams 3, 3 and lined up between left and right columns 2, 2, horizontal external forces from the left and right, such as those caused by an earthquake, act on the wall 1 inside the opening 4 from the columns 2 and beams 3.

[0073] Regarding the stress transmission state at that time, for example, the external force RF acting in the right direction acts as a shear force q diagonally downward to the right, perpendicular to the hypotenuse w of each octagonal block 5, from the column 2 and beam 3 through the gap sealing blocks 6 and 7.

[0074] The shear force q input to the hypotenuse w of each octagonal block 5 bypasses the opening S and is transmitted through each octagonal block 5 as an accumulation of horizontal component force hf directed to the right due to the joints between the vertical sides y and an accumulation of vertical component force vf directed downward due to the joints between the horizontal sides x.

[0075] These horizontal component hf and vertical component vf create a compression strut CF along the direction of the shear force q when viewed as a whole wall 1 (a compression strut pointing downward to the right in the figure; 45° in the case of a regular octagon).

[0076] As shown in Figure 4, when an external force LF acts to the left, a similar compression strut CF is generated in the opposite direction (a downward compression strut to the left; 45° in the case of a regular octagon).

[0077] When the horizontal side x of the octagonal block 5 is parallel to the direction of the fibers f of the wood material (see Figure 2(a)), a wall 1 is constructed in which the direction along the horizontal side x to which the horizontal component force hf is transmitted is the strong axis direction SA, and the direction along the vertical side y to which the vertical component force vf is transmitted is the weak axis direction WA.

[0078] Therefore, a column-and-beam frame equipped with such a wall 1 can provide a structure with more leeway against the horizontal component force hf than against the vertical component force vf.

[0079] When the vertical side y of the octagonal block 5 is parallel to the direction of the fibers f of the wood material, a wall 1 is constructed in which the direction along the vertical side y to which the vertical component force vf is transmitted is the strong axis direction, and the direction along the horizontal side x to which the horizontal component force hf is transmitted is the weak axis direction, although this is not shown in the figure.

[0080] A column-and-beam frame equipped with such a wall 1 can provide a structure with more leeway against the vertical component force vf than against the horizontal component force hf.

[0081] As described above, if the structural strength of the wall 1 is sufficient to withstand either the horizontal component force hf or the vertical component force vf, then the opening 4 may be provided with a single wall 1 in which the orientation of the fibers f of the wood material is parallel to the horizontal side x or the vertical side y.

[0082] On the other hand, if the strength of the wall 1 is insufficient, the wall 1 is constructed by stacking at least two walls 1 side by side in the width direction of the columns 2 and beams 3 inside the opening 4, as shown in Figure 5.

[0083] Figure 5(a) is a side cross-sectional view of the wall structure, Figure 5(b) is an enlarged front view of a main part of one wall 1 when the wall structure of Figure 5(a) is viewed from the left, and Figure 5(c) is an enlarged front view of a main part of the other wall 1 when the wall structure of Figure 5(a) is viewed from the right.

[0084] In these adjacent walls 1, the direction of the fibers f of the wood material of one wall 1 is parallel to the horizontal side x, and the direction of the fibers f of the wood material of the other wall 1 is parallel to the vertical side y.

[0085] In other words, these walls 1 are arranged side by side so that the strong axis direction SA of one wall 1 (of its octagonal block 5) is the weak axis direction WA of the other wall 1 (of its octagonal block 5), and the weak axis direction WA of one wall 1 (of its octagonal block 5) is the strong axis direction SA of the other wall 1 (of its octagonal block 5).

[0086] These walls 1 are not bonded to each other in the width direction of the columns 2 and beams 3, but are disconnected and constructed so as to move freely relative to each other.

[0087] Such a wall structure will provide a column-and-beam frame that will provide equal resistance to both a right-facing external force RF and a left-facing external force LF at a single opening 4. The number of walls 1 that can be placed side by side is not limited as long as it is an even number.

[0088] In the wall structure made of wood material according to the present embodiment described above, a plurality of octagonal blocks 5 made of wood material of the same dimensions are used, each having a pair of two horizontal sides x, one above the other, that are parallel to each other and of equal length, a pair of two vertical sides y, one left to right, that are parallel to each other and of equal length, and two pairs of four oblique sides w, which are parallel to each other and of equal length and connect the vertical sides y and the horizontal sides x, one of which is formed parallel to the direction of the fiber f of the wood material, and the other is formed intersecting the direction of the fiber f of the wood material, and the plurality of octagonal blocks 5 are arranged inside the opening portion 4 so that the fiber f of the wood material is all oriented in the same direction, with the vertical sides y of equal length facing each other and the horizontal sides x of equal length facing each other, and facing the pillar 2. The octagonal blocks 5 are arranged in the column-beam direction so that the vertical side y of each block faces the column 2, and the horizontal side x of each block facing the beam 3 faces the beam 3. The octagonal blocks 5 are bonded together inside the opening 4, with the vertical sides y and horizontal sides x of each block bonding together. Sealing blocks 6, 7 are arranged between the columns 2 or beams 3 and the octagonal blocks 5 facing them, and the octagonal blocks 5 are bonded to the sealing blocks 6, 7, which in turn are bonded to the columns 2 or beams 3, thereby constructing the wall 1. By aligning the vertical sides y or horizontal sides x of each block bonding together with the direction of the fibers f of the wood material, the wall 1 can be given high strength to provide earthquake resistance, even though it is made of wood.

[0089] Furthermore, the octagonal blocks 5 made of wooden material that are the constituent members of the wall 1 have a standard shape compared to the openings 4 of the column-and-beam structure, and can be made lightweight for easy handling, making them easy to install and also enabling the weight of the wall 1 itself to be reduced.

[0090] By combining octagonal blocks 5 formed as single units, the strength of the octagonal blocks 5 can be ensured high, while openings S that ensure lighting and ventilation can be formed rationally in the wall 1.

[0091] The octagonal blocks 5 themselves are very strong, and the walls 1 are constructed by bonding the octagonal blocks 5 together and also to the columns 2 and beams 3 via the gap sealing blocks 6 and 7, so there is no noise, vibration, or dust generated, and the walls 1 can be constructed without the need for any maintenance work. Therefore, this construction can be carried out as a renovation project for existing buildings.

[0092] By constructing the wall 1 with blocks 5 to 7 made of wood material, finishing is not necessary and the wall 1 can be obtained with the texture of wood being utilized.

[0093] The blocks 5 to 7 may be small pieces of wood, which is the raw material, that is, scrap wood, and therefore contribute to the effective use of wood resources.

[0094] Of course, the blocks 5 to 7 made of wood may be provided with a fire-resistant coating or have a fire-resistant finish.

[0095] Blocks 5 to 7 are bonded together with adhesive, and the strength of the adhesive-soaked bonding surfaces is increased. As a result, it can be said that each bonding surface of blocks 5 to 7 is reinforced, and as a wall 1, deformation such as buckling or crushing in the out-of-plane direction can be suppressed.

[0096] At least two walls 1 are constructed side by side inside the opening 4 in the width direction of the columns 2 and beams 3, and in one of these walls 1, the vertical side y of the octagonal block 5 is parallel to the direction of the fibers f of the wood material, and in the other of these walls 1, the horizontal side x of the octagonal block 5 is parallel to the direction of the fibers f of the wood material.Since the directions of the fibers f of the wood material differ between adjacent walls 1, even if there are strong axes and weak axes depending on the direction of the fibers f of the wood material, walls 1 of the required strength can be constructed in a single opening 4.

[0097] The octagonal blocks 5 are laminated materials made by stacking and integrating octagonal board pieces 5a, all of which have the same fiber f direction in the wood material, across the width of the columns 2 and beams 3. This laminated material can be used to form octagonal blocks 5 that meet the required strength of the wall 1, and to construct the wall 1.

[0098] In order to seal the gaps between the octagonal block 5 and the columns 2 and beams 3, gap sealing blocks 6, 7 are attached to the octagonal block 5 and the columns 2 and beams 3, so that a sturdy wall 1 can be constructed against the columns 2 and beams 3.

[0099] 6 and 7 show modified examples of the octagonal block 5 formed of the octagonal plate pieces 5a described in the above embodiment.

[0100] The octagonal block 5 according to this modification is formed of a laminated material in which a plurality of octagonal plate pieces 5a are stacked and integrated in the width direction of the columns 2 and beams 3, similar to FIGS. 3(b) and (c).

[0101] The octagonal plate piece 5a has a vertical side y parallel to the direction of the fibers f of the wood material, and a horizontal side x parallel to the direction of the fibers f of the wood material.

[0102] The octagonal block 5 is formed as a laminated material in which the direction of the fibers f crosses the thickness direction, as shown in Figure 6, by alternately stacking wood materials whose fibers f are oriented along the vertical side y and those whose fibers are oriented along the horizontal side x.

[0103] Specifically, the octagonal block 5 can be formed in various ways as shown in the side views of FIG.

[0104] Figure 7(a) is a side view of the case where the raw material, cylindrical logs, etc., are cut in the direction of the fibers to form octagonal board pieces 5a, and two of these octagonal board pieces 5a are stacked and integrated in the width direction of the pillar 2 and beam 3 so that the fibers f of the wood material are oriented in a crosswise direction.

[0105] FIG. 7(b) is a side view of a large number of octagonal plate pieces 5a, which are thinner than those in FIG. 7(a), stacked and integrated together so that the directions of the fibers f intersect.

[0106] Figure 7(c) is a side view of a laminated material in which thin plates are created from raw material logs, such as cylindrical logs, using a peeling method, and multiple octagonal plate pieces 5a cut from these thin plates are stacked and integrated together.

[0107] In this case as well, the wood materials are overlapped in the width direction of the pillars 2 and the beams 3 so that the directions of the fibers f of the wood materials cross each other.

[0108] Therefore, in this modified octagonal block 5, the strong axis direction SA and the weak axis direction WA intersect, so the wall 1 constructed with the octagonal block 5 can provide equal resistance to both a right-facing external force RF and a left-facing external force LF.

[0109] In other words, according to this modified example, the octagonal block 5 is formed from laminated wood in which the fibers f of the wood material are oriented in a cross-sectional direction, so that a column-and-beam structure that can resist both left and right forces can be constructed by simply constructing a single wall 1.

[0110] In this case, it is desirable that the octagonal plate pieces 5a of the two octagonal blocks 5 to be joined are arranged so that the fibers f of the plates aligned on the same plane are all parallel to each other.

[0111] The octagonal block 5 may have a shape in which the length of the vertical side y and the length of the horizontal side x are different, or may have other shapes instead of a regular octagonal shape. Figure 8 shows another modified example of the octagonal block 5.

[0112] As shown in Figures 8(a) and (b), in the case of an octagonal block 5 in which all interior angles are 135°, when the vertical side y is parallel to the fiber f, the horizontal side x intersects the direction of the fiber f at a right angle.

[0113] FIG. 8(a) shows a case where the length of the sides is horizontal side x>vertical side y, and FIG. 8(b) shows a case where the length of the sides is vertical side y>horizontal side x.

[0114] The hypotenuse w of the regular octagonal block 5 forms an angle of 45° (internal angle is 135°) with the vertical side y and the horizontal side x (see Figure 2), but Figure 8(c) shows the case where the hypotenuse w forms an angle of 60° with the vertical side y and 30° with the horizontal side x, and the vertical side y is smaller than the horizontal side x.

[0115] Figure 8(d) shows a case where one pair of opposing hypotenuses w is formed so that it forms an angle of 60° with respect to one vertical side y and an angle of 30° with respect to the horizontal side x, and the other pair of opposing hypotenuses w is formed so that it forms an angle of 30° with respect to the vertical side y and an angle of 60° with respect to the horizontal side x.

[0116] In this way, if the octagonal block 5 has a hypotenuse w whose sum of the angles it makes with the vertical side y and the horizontal side x is 90°, it goes without saying that the wall 1 can be constructed using this octagonal block 5 without being limited to the angles of 45°, 30°, or 60° mentioned above.

[0117] In the configurations illustrated in Figures 8(a) to (d), the lengths of the vertical side y and horizontal side x, which are the bonding points, are significantly longer than the oblique side w, so the strength of the wall 1 obtained by bonding with an adhesive can be increased.

[0118] Another modified example is shown in Figure 9. In this modified example, the relationship between the interior dimensions of the octagonal block 5 and the opening 4 allows the vertical side y and horizontal side x to directly abut against the column 2 and beam 3, and the octagonal block 5 can be directly bonded to the column 2 and beam 3.

[0119] That is, the multiple octagonal blocks 5 are bonded together inside the opening 4 with their opposing vertical sides y and their opposing horizontal sides x, and the vertical side y of the octagonal block 5 facing the column 2 is bonded to the column 2, and the horizontal side x of the octagonal block 5 facing the beam 3 is bonded to the beam 3. The matrix arrangement of the octagonal blocks 5 is the same as in the above embodiment.

[0120] In this modified example, the wall 1 is composed of the above-mentioned octagonal blocks 5 made of wooden material and gap sealing blocks 8, 9 made of wooden material that seal the gaps that occur between these octagonal blocks 5 and the columns 2 and beams 3.

[0121] The gap sealing blocks 8 and 9 have the same thickness as the octagonal block 5, and two types are used.

[0122] One of the gap sealing blocks 8 is provided in a line in the vertical direction of the column 2 and in the horizontal direction of the beam 3, except for the corner portion 4a of the opening portion 4.

[0123] One of the gap sealing blocks 8 is formed in a triangular shape having a mountain-shaped surface 8a that is joined to a pair of adjacent octagonal blocks 5 above and below or to the left and right, and a flat surface 8b that is joined to a column 2 or beam 3.

[0124] If the octagonal block 5 is a regular octagon, the gap sealing block 8 is formed in the shape of an isosceles right triangle.

[0125] The other gap sealing block 9 is provided at the corner 4a of the opening 4. The other gap sealing block 9 has an inclined flat surface 9a that joins with one of the octagonal blocks 5 facing the corner 4a, and an L-shaped surface 9b that joins with the column 2 and beam 3 at the corner 4a.

[0126] If the octagonal block 5 is a regular octagon, the other gap sealing block 9 is formed in the shape of a right-angled isosceles triangle that is half the size of the one gap sealing block 8 .

[0127] The surfaces 8a, 8b, 9a, 9b of these gap sealing blocks 8, 9 are used as joints to be bonded to the octagonal block 5, the columns 2, and the beams 3 with an adhesive.

[0128] As described above, the wall 1 is constructed by arranging and adhering the octagonal block 5 and the gap sealing blocks 8 and 9 inside the opening 4.

[0129] Even in this modified example, a plurality of octagonal blocks 5 made of a wooden material of the same dimensions are used, each having a pair of two horizontal sides x, one above the other, that are parallel to each other and of equal length, a pair of two vertical sides y, one left to right, that are parallel to each other and of equal length, and two pairs of four oblique sides w, which are parallel to each other and of equal length and connect the vertical sides y and the horizontal sides x, and one of the vertical sides y and the horizontal sides x of the octagonal blocks 5 is formed parallel to the direction of the fiber f of the wooden material, and the other is formed to intersect with the direction of the fiber f of the wooden material. The plurality of octagonal blocks 5 are arranged inside the opening portion 4 so that the fiber f of the wooden material all faces the same, and the vertical sides y of the same length face each other and the horizontal sides x of the same length face each other, and are connected to the column 2 so that the vertical side y of the octagonal block 5 facing the column 2 faces the column 2, and the horizontal side x of the octagonal block 5 facing the beam 3 faces the beam 3. The octagonal blocks 5 are arranged in a direction perpendicular to the wall 1, and the opposing vertical sides y and horizontal sides x of the octagonal blocks 5 are glued together inside the opening 4, and the vertical side y of the octagonal block 5 facing the column 2 is glued to the column 2, and the horizontal side x of the octagonal block 5 facing the beam 3 is glued to the beam 3. Inside the opening 4, in the gap between the hypotenuse w of the octagonal block 5 and the column 2 or beam 3, gap sealing blocks 8, 9 are arranged and glued to the hypotenuse w and the column 2 or beam 3, and the octagonal blocks 5 are glued to the gap sealing blocks 8, 9, and the gap sealing blocks 8, 9 are glued to the column 2 or beam 3 to construct the wall 1. By aligning the vertical sides y or horizontal sides x of the joined walls with the direction of the fibers f of the wood material, the wall 1 can be given high strength to provide earthquake resistance, even though it is made of wood, as in the above embodiment.

[0130] The gap sealing blocks 8, 9 are also preferably formed to match the direction of the fibers f of the wood material in each of the octagonal blocks 5 with which they are abutted.

[0131] In order to seal the gaps between the octagonal block 5 and the columns 2 and beams 3, gap sealing blocks 8, 9 are attached to the octagonal block 5 and the columns 2 and beams 3, so that a sturdy wall 1 can be constructed against the columns 2 and beams 3.

[0132] It goes without saying that the various modifications described above also provide the same effects as those of the above embodiment.

[0133] In the above embodiment, gap sealing blocks 6, 7 and gap sealing blocks 8, 9 are made of wooden material, but these blocks 6 to 9 may be made of a material harder than the wooden material of octagonal block 5, for example, they may be made of concrete or mortar.

[0134] The wall structure made of wood materials according to the present invention may be applied to reinforce existing post-and-beam structures against earthquakes, or may be used as an earthquake-resistant structure within a newly constructed post-and-beam structure.

[0135] In the octagonal block 5 according to the above-described modified example, the number of octagonal plate pieces 5a whose fibers f are parallel to the horizontal side x and the number of octagonal plate pieces 5a whose fibers f are parallel to the vertical side y do not necessarily have to be the same; it is also possible for either the horizontal side x or the vertical side y to be a stronger axis than the other. [Explanation of symbols]

[0136] 1. Wall 2 pillars 3 beams 4 Opening part 5 Octagonal Blocks 5a Octagonal plate piece 6,7 Gap sealing blocks 8,9 Gap sealing blocks f. Fibers of wood-based materials w Hypotenuse of the octagonal block x side of octagon block y vertical side of the octagonal block

Claims

1. A wall structure constructed inside an opening defined by columns and beams, A plurality of octagonal blocks made of wood material of the same dimensions are used, each having a pair of two horizontal sides, one above the other, that are parallel to each other and of equal length, a pair of two vertical sides, one left and one right, that are parallel to each other and of equal length, and two pairs of four oblique sides, each of which is parallel to each other and of equal length, connecting the vertical sides and the horizontal sides, One of the vertical side and the horizontal side of the octagonal block is formed parallel to the direction of the fibers of the wood material, and the other is formed intersecting the direction of the fibers of the wood material, The plurality of octagonal blocks are arranged inside the opening in such a way that the fibers of the wood material are all oriented in the same direction, that the vertical sides of equal length face each other and the horizontal sides of equal length face each other, and that the vertical sides of the octagonal blocks facing the columns face the columns, and that the horizontal sides of the octagonal blocks facing the beams face the beams, thereby constructing a wall. A pair of the octagonal blocks adjacent in the horizontal direction are arranged so that the vertical sides abut each other, A pair of the octagonal blocks adjacent in the vertical direction are arranged so that the horizontal sides abut each other. A wall structure made of wood materials.

2. The wall structure made of wood material according to claim 1, characterized in that at least two walls are constructed side by side inside the opening in the width direction of the columns and the beams, and in one of these walls, the vertical side of the octagonal block is parallel to the direction of the fibers of the wood material, and in another of these walls, the horizontal side of the octagonal block is parallel to the direction of the fibers of the wood material.

3. 3. A wall structure made of wood materials according to claim 1 or 2, characterized in that the vertical sides and horizontal sides of the plurality of octagonal blocks facing each other are glued together inside the opening, and the vertical side of the octagonal block facing the pillar is glued to the pillar, and the horizontal side of the octagonal block facing the beam is glued to the beam.

4. The wall structure made of wood materials as described in claim 3, characterized in that, inside the opening, in the gap between the oblique side of the octagonal block and the pillar or beam, a gap sealant is arranged and adhered to the oblique side and the pillar or beam.

5. The wall structure made of wood materials as described in claim 1 or 2, characterized in that the opposing vertical sides and horizontal sides of the multiple octagonal blocks are glued to each other inside the opening, and gap sealants are arranged between the columns or beams and the opposing octagonal blocks, and the octagonal blocks are glued to the gap sealants, and the gap sealants are glued to the columns or beams.

6. The octagonal blocks are laminated materials formed by stacking and integrating multiple octagonal boards in the width direction of the columns and beams, and the fibers of the wood material of these octagonal boards are all aligned in the same direction.

7. The octagonal blocks are laminated materials made by stacking and integrating multiple octagonal boards in the width direction of the columns and beams, and the fibers of the wood material of these octagonal boards are arranged in a staggered pattern.

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