JP2018145631A - Junction structure joining orthogonal laminated plates, orthogonal laminated plates and planar members at right angle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an orthogonal laminated plate which can be extended while reducing the thickness.SOLUTION: Both outer layer parts 11 and 13 are provided with a ply 111, 113, 131 and 133 in which a plurality of laminae whose fiber directions are aligned in parallel with a strong axial direction are arranged in a weak axial direction without gaps, and a ply 112 and 132 in which a plurality of laminae whose fiber directions are aligned in parallel with the weak axis direction are arranged in the strong axial direction without gaps. On the other hand, an inner layer part 12 includes a ply 121 and 123 in which a plurality of laminae whose fiber directions are aligned in parallel with the strong axial direction are aligned in the weak axial direction at a fixed interval, a ply 122 in which a plurality of laminae whose fiber directions are aligned in parallel with the weak axial direction are aligned in the strong axial direction at a fixed interval, and a void portion 124 formed between the laminae.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cross laminated plate (CLT) obtained by laminating a laminar plate so that fiber directions are perpendicular to each other, and a joining structure for joining the orthogonal laminated plate and a planar member at a right angle.

  2. Description of the Related Art Conventionally, as a wooden member used in a wooden building such as an individual house, an apartment house, or a commercial facility, there is a cross laminated plate (CLT) in which a laminated board (lamina) is laminated and bonded so that fiber directions are orthogonal to each other. (See Patent Document 1). The orthogonal laminated board is a thick face material (panel), and can be used for a structural material, a floor, a roof, and the like.

Japanese Patent Laid-Open No. 2006-204958

  However, in each layer of the orthogonal assembly plate described in Patent Document 1, a large number of saw plates are arranged without any gaps, so that increasing the length of the orthogonal assembly plate increases the weight. As a result, it is necessary to increase the thickness in order to withstand its own weight.

  The present invention has been made in view of the above circumstances. That is, the problem is to provide an orthogonal assembly plate that can be elongated while suppressing thickness, and a joining structure that joins the orthogonal assembly plate and the planar member at a right angle.

The orthogonal laminated board based on this invention made | formed in order to solve the said subject is equipped with the following structures.
(1) A ply formed by arranging a plurality of laminas made of plate-like wood members in the alignment direction and arranged in the width direction is laminated so that the alignment directions are orthogonal to each other, and both outer sides along the lamination direction In the orthogonal laminated plate in which the orientation directions of the lamina constituting the ply arranged in are parallel,
A first outer layer portion formed on one outer side with respect to the stacking direction; a second outer layer portion formed on the other outer side; an inner layer portion disposed between the first outer layer portion and the second outer layer portion; With
The first outer layer portion includes at least a first outer layer ply arranged on the outer side of the one side, in which a plurality of laminaes whose fiber directions are aligned in the first direction (strong axis direction) are arranged without gaps in the width direction. Have
The second outer layer portion has at least a second outer layer ply arranged on the outer side of the other and having a plurality of laminaes whose fiber directions are aligned in the first direction and arranged without gaps in the width direction,
The inner layer portion includes an inner layer first ply made of a wood member having at least a fiber direction parallel to the second direction (strong axis direction), and a third direction (weak axis) in which the fiber direction is orthogonal to the second direction. An inner layer second ply made of a wooden member parallel to the direction) and a gap portion are provided.
(2) The orthogonal assembly board of (1),
The inner layer first ply is configured by arranging a plurality of laminaes whose fiber directions are aligned in the second direction in the width direction,
The inner layer second ply is configured by arranging a plurality of laminaes whose fiber directions are aligned in the third direction in the width direction,
Among a plurality of laminaes constituting either or either one of the inner layer first ply and the inner layer second ply, between some adjacent lamina and lamina, or between all adjacent lamina and lamina A straight linear void portion having both ends opened along the fiber direction of the lamina is formed, and the linear void portion constitutes the void portion.
(3) The orthogonal assembly board of (1),
The inner layer portion includes a rectangular parallelepiped-shaped void portion and a frame-shaped wall portion surrounding the rectangular solid-shaped void portion,
The rectangular parallelepiped void is the void.
The inner layer first ply and the inner layer second ply form the wall portion.
(4) The orthogonal assembly board of (3),
Two rectangular parallelepiped voids along the second direction are formed in the inner layer portion,
The wall portion includes an intermediate wall portion formed between the two rectangular parallelepiped void portions and an outer wall portion formed outside the two rectangular parallelepiped void portions in the second direction. ,
A tension material is inserted across the intermediate wall portion and both the outer wall portions,
The tension material is held in a substantially broken line shape that bends at the intermediate wall portion when viewed in the third direction, and is tension-fixed at both the outer wall portions to have a tension force,
The tendon material is characterized in that a vertical load is applied to the intermediate wall portion in a direction opposite to the bent portion.
(5) The orthogonal assembly plate according to any one of (1) to (4),
The overall shape is rectangular in plan view,
At least one of the first direction and the second direction is parallel to the long side direction of the orthogonal laminated plate.
(6) Any one of the orthogonal assembled plates of (1) to (4),
The overall shape is rectangular in plan view,
At least one of the first direction and the second direction is a direction inclined with respect to the long side direction of the orthogonal laminated plate.
(7) The orthogonal assembly plate according to any one of (1) to (6),
A plate-like reinforcing plate containing reinforcing fiber plastic is laminated and bonded to form a composite.
(8) A joining structure for joining the orthogonal assembly plate of (2) and the planar member at right angles,
One or more rod-shaped members are fixed to the planar member substantially vertically,
The orthogonal assembly plate is arranged orthogonal to the planar member so that the direction of the linear void is parallel to the orthogonal direction of the planar member;
The rod-shaped member is inserted into the linear gap.

  According to the orthogonal laminated board according to the present invention, the first outer layer first ply and the second outer layer in which a plurality of laminas whose fiber directions are aligned in the first direction are arranged without gaps in the width direction on both outer sides in the stacking direction. While the outer layer first ply is arranged, the inner layer portion is provided with a gap, so that it is possible to suppress the decrease in tensile strength / compression strength and to extend the thickness while suppressing the thickness.

It is a perspective view of the orthogonal laminated board of 1st Embodiment of this invention. It is an exploded view of the orthogonal laminated board of FIG. It is explanatory drawing showing the method of installing the orthogonal laminated board of FIG. 1 on a floor. (A) is a perspective view of the pin used with the installation method of FIG. 3, (B) is a side view of the orthogonal laminated board of FIG.3 (D). (A) is a perspective view of a panel formed by joining a plurality of orthogonal assembled plates of the second embodiment of the present invention, (B) is a perspective view of orthogonal assembled plates constituting the panel of FIG. 5 (A), (C ) Is a perspective view of an inner layer portion constituting the orthogonal assembly plate of FIG. (A) is an AA cross-sectional end view of FIG. 5 (B), (B) is a BB cross-sectional end view of FIG. 5 (B), and (C) is a partially enlarged view of FIG. 6 (B). It is a disassembled perspective view of the upper layer part which comprises the orthogonal assembly board of other embodiment of this invention. (A) is a disassembled perspective view of the upper layer part which comprises the orthogonal assembly board of other embodiment of this invention, (B) is a front view of the lamina where the reinforcement board is affixed. It is a disassembled perspective view of the upper layer part which comprises the orthogonal assembly board of other embodiment of this invention.

(First embodiment)
The first embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view showing an orthogonal assembly plate 1 which is a configuration example of the orthogonal assembly plate of the present invention. FIG. 2 is an exploded view of the orthogonal assembly plate 1 of FIG.

  The orthogonal assembly board 1 is a planar member as a whole, and is a planar member having a rectangular shape in plan view. The orthogonal assembled plate 1 has a length (length in the long side direction) of 6300 mm, a width (length in the short side direction) of 3300 mm, and a thickness of 270 mm. In addition, the shape and dimension of the orthogonal laminated board 1 are not restricted to these, It can change suitably.

  The orthogonal assembly plate 1 is formed by laminating an upper layer portion 11 on the upper side, a lower layer portion 13 on the lower side, and an inner layer portion 12 sandwiched between the upper layer portion 11 and the lower layer portion 13. Here, “upper side” and “lower side” are referred to for convenience on the basis of FIG. 1, but the names do not represent absolute positions. For example, the upper layer part 11 may be arranged three-dimensionally on the lower side and the lower layer part 13 may be arranged on the upper side. Moreover, the upper layer part 11 may be arrange | positioned at the left side or the right side, and the lower layer part 13 may be arrange | positioned at the right side or the left side.

  In the upper layer part 11, three plies, that is, an upper layer part first ply 111, an upper layer part second ply 112, and an upper layer part third ply 113 are laminated in order from the top. In the upper layer first ply 111, a plurality of (11 in the first embodiment) laminas 1111 are arranged such that their fiber directions are aligned with the strong axis direction (or the long side direction) of the orthogonal assembly plate 1, and the lamina 1111 is weak. Arranged parallel to the axial direction (short side direction) without gaps. In the upper layer second ply 112, a plurality of (21 in the first embodiment) laminas 1121 are arranged such that their fiber directions are aligned with the weak axis direction (or short side direction) of the orthogonal assembly plate 1, and strong. Arranged parallel to the axial direction (long side direction) without gaps. In the upper layer third ply 113, a plurality of (11 in the first embodiment) 1131 have their fiber directions aligned in the strong axis direction (or long side direction) of the orthogonal assembly plate 1, and the weak axis They are arranged parallel to the direction (short-side direction) with no gap between them. Lamina 1111, lamina 1121, and lamina 1131 are made of cedar ground plates.

  In the lower layer portion 13, three plies, that is, three lower layer first plies 131, a lower layer second ply 132, and a lower layer third ply 133 are laminated. In the lower layer first ply 131, a plurality of (11 in the first embodiment) lamina 1311 has its fiber direction aligned in the strong axis direction (or long side direction) of the orthogonal assembly plate 1, and weak. Arranged parallel to the axial direction (short side direction) without gaps. In the lower layer second ply 132, a plurality (21 in the first embodiment) of laminas 1321 are aligned with their fiber directions aligned with the weak axis direction (or the short side direction) of the orthogonal assembly plate 1, and strong. Arranged parallel to the axial direction (long side direction) without gaps. In the lower layer third ply 133, a plurality of (11 in the first embodiment) laminas 1331 are aligned with the fiber direction in the strong axis direction (or long side direction) of the orthogonal laminated plate 1, and the weak axis Arranged parallel to the direction (short side direction) without gaps. The lamina 1311, the lamina 1321, and the lamina 1331 are made of cedar ground plates.

  The size of the lamina that is the minimum unit constituting the orthogonal laminated plate is arbitrary, but in the first embodiment, the lamina 1111, 1131, 1311, and 1331 are formed to have a thickness of 30 mm, a width of 300 mm, and a length of 6300 mm. Yes. The laminas 1121 and 1321 are formed to have a thickness of 30 mm, a width of 300 mm, and a length of 3300 mm.

  The “ply” means that the laminaes are arranged or bonded in the width direction (direction perpendicular to the fiber direction) with their fiber directions being substantially parallel to each other. The “strong axis direction” refers to the fiber direction of the outermost ply of the orthogonal assembly plate 1, and the “weak axis direction” refers to the direction perpendicular to the strong axis direction of the orthogonal assembly plate.

  In the inner layer portion 12, three plies, that is, an inner layer portion first ply 121, an inner layer portion second ply 122, and an inner layer portion third ply 123 are laminated. In the inner layer first ply 121, a plurality of (11 in the first embodiment) laminas 1211 are arranged such that their fiber directions are aligned with the weak axis direction (or short side direction) of the orthogonal laminated plate 1, and strong. They are arranged in parallel in the axial direction (long side direction) at a predetermined interval. In the inner layer second ply 122, a plurality (six in the first embodiment) of laminas 1221 have their fiber directions aligned in the strong axis direction (or the long side direction) of the orthogonal laminated plate 1, and are weak. They are arranged side by side at a predetermined interval in parallel to the axial direction (short side direction). In the inner layer portion third ply 123, a plurality of (11 in the first embodiment) lamina 1231 are arranged such that the fiber direction is aligned with the weak axis direction (or the short side direction) of the orthogonal laminated plate 1 and strong. They are arranged side by side at a predetermined interval in parallel with the axial direction (long side direction). That is, the inner layer portion 12 is formed by stacking a plurality of laminas 1211, 1221, and 1231 in a cross beam so that the fiber directions are orthogonal to each other.

  In the first embodiment, the laminas 1211 and 1231 are made of cedar ground plates and are formed to have a thickness of 30 mm, a width of 300 mm, and a length of 3300 mm. The lamina 1221 is made of a cedar ground plate and is formed to have a thickness of 30 mm, a width of 300 mm, and a length of 6300 mm. Further, the gap between the lamina 1211 in the inner layer first ply 121, in other words, the distance between the adjacent lamina 1211 and the lamina 1211 is 300 mm. Similarly, the distance between adjacent lamina 1221 and lamina 1221 and the distance between adjacent lamina 1231 and lamina 1231 are also 300 mm. That is, in the first ply 121 of the inner layer portion, ten void portions 1212 each having a width of 300 mm penetrating in the weak axis direction (hereinafter also referred to as “first void portion 1212”) are arranged in parallel in the strong axis direction. Is formed. Further, in the inner layer second ply 122, five voids 1222 (hereinafter also referred to as “second voids 1222”) having a width of 300 mm penetrating in the strong axis direction are arranged in parallel in the weak axis direction. Is formed. The inner layer portion third ply 123 has ten void portions 1232 each having a width of 300 mm penetrating in the weak axis direction (hereinafter also referred to as “third void portion 1232”) arranged in parallel to the strong axis direction. Is formed.

  Here, the ten first gap portions 1212, the five second gap portions 1222, and the ten third gap portions 1232 are connected to each other to form one void portion as a whole. Hereinafter, one large void formed by the ten first voids 1212, the five second voids 1222, and the ten third voids 1232 is referred to as an “inner layer void 124”. Called. In other words, the inner layer portion 12 is formed with one large inner layer portion gap portion 124.

  Note that the size and shape of the laminas 1211, 1221, and 1231 are not limited to those in the first embodiment, and can be set as appropriate. Further, the size (width) of each of the gaps 1212, 1222, and 1232 is not limited to that in the first embodiment, and can be set as appropriate according to the design strength of the orthogonal laminated plate.

  Laminas 1111, 1121, 1131, 1211, 1221, 1231, 1311, 1321, and 1331 that overlap in the vertical direction (stacking direction) are bonded to each other with an adhesive for woodworking.

  The orthogonal laminated board 1 comprised as mentioned above can be used for the floor of a building, a wall, etc. as a building material. A plurality of laminas 1111 aligned with the upper layer portion 11 and the lower layer portion 13 where a large bending moment is generated when a vertical load is applied to the orthogonal laminated plate 1 so that the fiber direction is parallel to the strong axis direction. , 1131, 1311, 1331 are arranged in parallel to the weak axis direction without gaps, so-called “parallel layers” composed of plies 111, 113, 131, 133, so that the fiber direction is orthogonal to the strong axis direction Compared to the upper layer portion 11 and the lower layer portion 13, a so-called “orthogonal layer” composed of plies 112 and 132 configured by arranging a plurality of aligned laminas 1121 and 1321 parallel to the strong axis direction without gaps is provided. The inner layer gap 124 is formed in the inner layer 12 with a small bending moment. In other words, the plies 121, 122, 123 of the inner layer 12 are thinned out. It has been. The distance between the upper layer portion 11 and the lower layer portion 13 responsible for the tensile strength / compression strength of the orthogonal laminated plate 1 is ensured by the inner layer portion 12 in which the gap portion 124 is formed (the positions of the upper layer portion 11 and the lower layer portion 13 are Therefore, the reduction in the tensile strength and the compression strength can be suppressed, and the weight of the orthogonal laminated plate 1 can be reduced, so that the orthogonal laminated plate 1 can be efficiently elongated in the strong axis direction, in other words, the orthogonal assembled. Extension (long span) between the support points of the plate 1 can be achieved. Further, the first gap portion 1212, the second gap portion 1222, and the third gap portion 1232 (inner layer portion gap portion 124) communicating with each other are formed in the inner layer portion 12, so that the orthogonal assembly plate 1 was used. When using a building, piping and wiring can be stored (embedded) here. As a result, the design of the indoor space of the building using the orthogonal laminated board 1 can be enhanced. Furthermore, since a heat retaining effect, a sound absorbing effect, a vibration damping effect, and the like can be obtained by the inner layer gap portion 124, a comfortable living space can be provided. Since the first gap portion 1212, the second gap portion 1222, and the third gap portion 1232 are open at both ends and penetrate in the fiber direction, the same orthogonal assembled plate 1 can be connected to the strong axis direction or the weak axis. In the case of surface bonding in the direction, the first gap portion 1212, the second gap portion 1222, and the third gap portion 1232 of the adjacent orthogonal assembly plate 1 may be communicated with each other so that piping and wiring can be easily accommodated. it can. Further, as a result, the inner layer portion 12 is configured such that the lamina 1211, 1221, and 1231 arranged side by side in the width direction are partially thinned out. ) Is easy.

  Next, a method of joining the orthogonal assembly board 1 at a right angle to the floor F in order to use it as a wall, in other words, a joining structure for joining the orthogonal assembly board 1 and the floor F at a right angle with reference to FIGS. explain. Here, it is assumed that the orthogonal assembly plate 1 is joined (installed) to the wooden floor F so that the strong axis direction (longitudinal direction) of the orthogonal assembly plate 1 is parallel to the height direction of the wall.

  As shown in FIG. 3A, first, four pins 81 are embedded at four positions on the floor F at predetermined positions. The pin 81 is formed in a cylindrical shape and is made of carbon fiber reinforced plastic. The diameter of the entire pin 81 is 30 mm, the wall thickness is 15 mm, and the height is 500 mm. The pin 81 forms a hollow portion of the pin 81 and has one inner hole 82 penetrating in the axial direction, and a plurality of outer holes that are formed radially from the center of the pin 81 in plan view and communicate with the inner hole 82. 83 (see FIG. 4A). The shape, dimensions, and material of the pin 81 can be set as appropriate. The shape and dimensions of the outer hole 83 can be set as appropriate. Here, the outer hole 83 is formed in a substantially cylindrical shape having a diameter of 5 mm.

  The four pins 81 are arranged in a straight line. The four pins 81 are inserted into the second gap portion 1222. Here, the pin 81 arranged at one end of the four pins 81 is arranged so as to be inserted into the second gap portion 1222 formed at one end in the second gap portion 1222. . Also, the pin 81 arranged second from one end of the four pins 81 is inserted into the second gap 1222 formed second from one end in the second gap 1222. Are arranged as follows. Of the four pins 81, the third and fourth pins 81 arranged from one end of the four pins 81 are the second gap portions formed in the second gap portion 1222 from the fourth end to the fourth and fifth positions. It is arranged to be inserted into 1222.

  For example, the uppermost pin 81 shown in FIG. 3A is inserted into the rightmost second gap portion 1222 of the orthogonal assembly plate 1 shown in FIG. The second pin 81 from the top shown in FIG. Also, the third pin 81 from the top shown in FIG. 3A is inserted into the fourth second gap portion 1222 from the right end of the orthogonal assembly plate 1 shown in FIG. The fourth pin 81 from the top shown in FIG. 3A is inserted into the second gap portion 1222. The method of embedding the pin 81 in the floor F is arbitrary. For example, a hole having a diameter that is the same as or slightly larger than the diameter of the pin 81 and a depth that is half the height of the pin 81 is formed in the hole. An adhesive that bonds the wooden floor F such as an adhesive and the pin 81 made of carbon fiber reinforced plastic is filled. Then, the pin 81 is inserted into the hole filled with the adhesive, and the adhesive is cured in that state, and the pin 81 is embedded in the floor F and fixed.

  Next, as shown in FIGS. 3B to 3C, the orthogonal assembly plate 1 is inserted into the pin 81 from the predetermined second gap 1222 as described above.

  Subsequently, as shown in FIG. 3D, the injection hole 91 for injecting the woodworking adhesive into the inner hole 82 of the pin 81 from the outside of the orthogonal laminated plate 1 is used with a predetermined tool such as an electric drill. Provide. As the position where the injection hole 91 is provided, for example, with respect to the injection hole 91 for the pin 81 inserted into the second right gap 1222 which is the rightmost end and the right end of the orthogonal assembly plate 1 shown in FIG. This is a position on the front surface of the pin 81 on the surface of the upper layer first ply 111 disposed on the outer side of the pin 81 and a position above the upper end of the pin 81 by a predetermined length (for example, 100 mm). In addition, the injection hole 91 for the pin 81 inserted into the second and fifth second gaps 1222 from the right end of the orthogonal assembly plate 1 shown in FIG. It is a position on the front surface of the pin 81 on the surface of the 3-ply 133 and a predetermined length (for example, 100 mm) above the upper end of the pin 81. The upper layer part first ply 111 and the lower layer part third ply 133 are inclined downwardly in a side view from the position higher than the tip of the pin 81 toward the inside of the orthogonal assembly plate 1 (FIG. 4). (See (B)) and a through-hole 91 is provided so as to be orthogonal to the orthogonal assembly plate 1 in plan view. Here, the position on the inner side of the injection hole 91, that is, the position of the injection hole 91 provided in the upper layer third ply 113 and the lower layer first ply 131 is at least from the upper end of the pin 81 to the upper layer first ply. 111 and the position of the injection hole 91 provided on the surface of the lower layer third ply 133, preferably near the upper end of the pin 81.

  The shape / dimension of the injection hole 91 is arbitrary, but as will be described later, a shape / dimension in which a tool for injecting an adhesive for woodworking can be appropriately inserted is desirable.

  Then, a tool 92 (for example, an injector) for injecting the woodworking adhesive is inserted into the injection hole 91 and further inserted into the inner hole 82, and the woodworking adhesive is injected into the inner hole 82, and the inside of the pin 81 Is filled with a woodworking adhesive to overflow the woodworking adhesive from the inner hole 82 and the outer hole 83, and the pin 81, the orthogonal laminated board 1 and the floor F are integrated with the woodworking adhesive. Then, it is cured until the woodworking adhesive is fixed.

  Thus, according to the joining structure in which the orthogonal assembly plate 1 and the floor F using the orthogonal assembly plate 1 and the pins 81 are joined at a right angle, the joining portion is hidden inside the orthogonal assembly plate 1, The design of the indoor space of the building can be improved without the above troublesomeness.

  In addition, the number, position, size, shape, material, and the like of the pins 81 required when joining the orthogonal assembly plate 1 and the floor F are appropriately determined according to the size, installation position, design strength, and the like of the orthogonal assembly plate 1. Can be changed. Moreover, in the example of FIG. 3, although the orthogonal assembly board 1 is set vertically, you may make it horizontal. In this case, the pins 81 are alternately inserted into the first gap portion 1212 and the third gap portion 1232. The material of the pin 81 is not limited to carbon fiber reinforced plastic, but may be other material such as fiber reinforced plastic made of other fibers such as glass fiber or metal. Further, the injection hole 91 may be provided in advance in a factory or the like instead of being provided on site.

(Second Embodiment)
Next, a second embodiment of the present invention will be specifically described with reference to the drawings. FIG. 5 (A) shows a configuration in which a plurality of orthogonal assembly plates 2 (5 in the second embodiment), which is an example of the configuration of the orthogonal assembly plate of the present invention, are integrally formed side by side in one direction. FIG. 5B is a perspective view in which the orthogonal assembled plate 2 constituting the panel 20 in FIG. 5A is extracted. 6A is an AA cross-sectional end view of the orthogonal assembled plate 2 of FIG. 5B, and FIG. 6B is a BB cross-sectional end view of the orthogonal assembled plate 2 of FIG. 5B. FIG. 6 (C) is a partially enlarged view of FIG. 6 (B). 5 (B) is along the center of the lower layer strand 235 described later, and the cross sectional instruction line BB of FIG. 5 (B) is at the center of the inner layer strand 226 described later. Along.

  The orthogonal assembly board 2 is a rectangular parallelepiped as a whole, and has a rectangular shape in plan view. The orthogonal assembled plate 2 has a length (strong axis direction length) of 6300 mm, a width (weak axis direction length) of 3300 mm, and a thickness of 390 mm. In addition, the shape and dimension of the orthogonal laminated board 2 are not restricted to these, It can change suitably.

  Similar to the orthogonal assembly plate 1 of the first embodiment, the orthogonal assembly plate 2 includes an upper layer portion 21 on the upper side, a lower layer portion 23 on the lower side, an inner layer portion 22 sandwiched between the upper layer portion 21 and the lower layer portion 23, and Are laminated.

  The upper layer portion 21 has the same configuration as the upper layer portion 11 of the first embodiment, and an upper layer portion first ply 211, an upper layer portion second ply 212, and an upper layer portion third ply 213 are laminated. The material, shape, dimensions, and arrangement of the lamina constituting the upper layer first ply 211, the upper layer second ply 212, and the upper layer third ply 213 are the same as those in the first embodiment. This is the same as the second ply 112 and the upper layer third ply 113.

  The lower layer part 23 has a partially similar configuration to the lower layer part 13 of the first embodiment. Specifically, in the lower layer part 23, similarly to the lower layer first ply 131, the lower layer second ply 132, and the lower layer third ply 133 of the first embodiment, three plies, that is, the lower layer first The ply 231, the lower layer second ply 232, and the lower layer third ply 233 are stacked. The material, shape, dimensions, and arrangement of the lamina constituting the lower layer first ply 231, the lower layer second ply 232, and the lower layer third ply 233 are the same as those of the lower layer first ply 131, lower layer of the first embodiment. This is the same as the part second ply 132 and the lower layer third ply 133. Here, the lower layer part 23 is different from the lower layer part 13 in that through holes 234 penetrating in the weak axis direction of the orthogonal assembly plate 2 are formed in the four laminaes 2321 constituting the lower layer second ply 232. It is. Furthermore, in each through hole 234, a single strand 235 (hereinafter referred to as “lower layer strand 235”) to which a tension of about 100 kN is applied is inserted. Different. The lower layer strand 235 is a structural cable in which a carbon fiber is impregnated with a thermosetting resin, but the material of the lower layer strand 235 is not limited. For example, instead of carbon fiber, other single fiber such as glass fiber may be used, or a composite resin composed of carbon fiber and glass fiber may be used. Further, a thermoplastic resin may be used instead of the thermosetting resin.

  The lower layer strands 235 are predetermined at both ends of the panel 20, that is, the outer end of the orthogonal assembly plate 2 disposed at one end and the outer end of the orthogonal assembly plate 2 disposed at the other end. It is fixed by a fixing tool (not shown). The lower layer strand 235 is inserted across the orthogonal laminated plates 2 constituting the panel 20 and fixed with tension at both ends of the panel 20, so that a plurality of orthogonal laminated plates 2 are horizontally aligned ( A single large panel 20 is formed by joining and integrating. In the second embodiment, the tension applied to the lower layer strand 235 is about 100 kN, but the tension applied to the lower layer strand 235 depends on the size of the panel 20, the size of the orthogonal laminated plate 2, and the like. You may change suitably.

  Further, the position where the through-hole 234 is formed, that is, the position where the lower layer strand 235 is installed is not particularly limited, and is appropriately set according to the size of the panel 20, the size of the orthogonal assembly plate 2, and the like. Can do. In the second embodiment, the through-hole 234 has two locations 450 mm away from the both ends in the strong axis direction on the side surface of the lower layer second ply 232 and both ends in the strong axis direction on the side surface of the lower layer second ply 232. It is provided in two places 1800mm away from the center side. Further, the number of the through holes 234 formed, that is, the number of the lower layer strands 235 is not particularly limited, and may be appropriately changed according to the size of the panel 20 or the size of the orthogonal assembly plate 2. Also good.

  Next, the inner layer part 22 will be described. The inner layer portion 22 is greatly different from the inner layer portion 12 of the first embodiment. The inner layer portion 22 is formed in a lattice shape in plan view, and four rectangular parallelepiped void portions 223 are formed in the inner layer portion 22. The inner layer portion 22 includes four inner layer portion first plies 221 and three inner layer portion second plies 222. Specifically, the inner layer first ply 221 is disposed on the upper side and the lower side, and the inner layer second ply 222 and the inner layer first ply 221 are alternately stacked toward the center.

  The inner layer first plies 221 are aligned such that the axial direction (long side direction) is parallel to the weak axis direction of the orthogonal assembly plate 2, and are arranged in parallel at an interval of 2700 mm in the strong axis direction. Between the lamina 2212 of the lamina 2212 and both lamina 2212 in the long side direction and each lamina 2212 in the center portion, the axial direction (long side direction) is arranged so that it is parallel to the strong axis direction of the orthogonal laminated plate 2. It is composed of a single lamina 2211.

  The inner layer second ply 222 is arranged in parallel so that the axial direction (long side direction) is parallel to the strong axis direction of the orthogonal laminated plate 2 and is arranged in parallel with a spacing of 1200 mm in the weak axis direction. The lamina 2221 and the lamina 2221 in the long side direction of the lamina 2221 and the lamina 2221 in the central portion are axially (long) so that the axial direction (long side direction) is parallel to the weak axis direction of the orthogonal laminated plate 2. The lamina 2222 is arranged so that the side direction is parallel to the weak axis direction of the orthogonal assembly plate 2.

  The laminas 2211, 2122, 2221, and 2222 have the same cross-sectional shape and are rectangular cross sections each having a width of 300 mm and a height of 30 mm. The length of the lamina 2211 is 2700 mm, the length of the lamina 2212 is 3300 mm, the length of the lamina 2221 is 6300 mm, and the length of the lamina 2222 is 1200 mm. As a result, the inner layer first ply 221 and the inner layer second ply 222 have the same shape in plan view. Note that the four inner layer first plies 221 and the three inner layer second plies 222 stacked in a lattice shape in plan view constitute a wall portion of the present invention. Further, the lamina 2212 and lamina 2222 laminated at both ends in the long side direction constitute the outer wall portion of the present invention, and the lamina 2212 and lamina 2222 laminated at the middle portion in the long side direction, This constitutes the intermediate wall portion of the present invention.

  Then, at two locations of the lamina 2212 in the middle of the strong axis direction that constitutes the inner layer first ply 221 located at the lowermost layer portion of the inner layer part 22, there are first through holes 224 whose axial directions are parallel to the strong axis direction. Is formed. Here, the 1st through-hole 224 is formed in each weak-axis direction center which divided the lamina 2212 in the half in the weak-axis direction. The lamina 2212 at both ends in the strong axis direction constituting the inner layer first ply 221 located at the uppermost layer portion of the inner layer part 22 is formed with a second through hole 225 whose axial direction is parallel to the strong axis direction in plan view. Has been. The second through hole 225, the first through hole 224, and the second through hole 225 are formed side by side in the strong axis direction of the orthogonal assembly plate 2. Here, the direction of the first through-hole 224 is a horizontal direction, and the direction of the second through-hole 225 is an obliquely downward direction facing the first through-hole 224 opposed to the strong axis direction in a side view. That is, the second through-hole 225 is formed on a straight line connecting the inner end of the second through-hole 225 and the second through-hole 225 side end facing the strong through-axis direction in plan view of the first through-hole 224. Has been.

  Then, a single strand 226 (hereinafter referred to as "a strand 226") in which a tension of about 100 kN is applied to the second through hole 225, the first through hole 224, and the second through hole 225 arranged along each strong axis direction. The inner layer strand 226 "is inserted and is held in a substantially V shape as a whole when viewed in the weak axis direction (a polygonal line shape in which the lower side is convex). The inner layer strand 226 is a structural cable in which a carbon fiber is impregnated with a thermosetting resin, but the material of the inner layer strand 226 is not limited. For example, instead of carbon fiber, other single fiber such as glass fiber may be used, or a composite resin composed of carbon fiber and glass fiber may be used. Further, a thermoplastic resin may be used instead of the thermosetting resin.

  As shown in FIG. 6C, each second through hole 225 is filled with an adhesive 227 for fixing the inner layer strand 226, and the inner layer strand 226 extends in the strong axis direction of the inner layer portion 22. The tension is fixed at the outer edge. As a result, the lowermost point portion of the substantially V-shaped inner layer portion strand 226 to which tension is applied is disposed at the central portion in the strong axis direction of the inner layer portion 22 in which the first through hole 224 is formed. A vertical upward load is applied (lifted upward in the vertical direction). Bending reinforcement is applied to the orthogonal assembled plate 2 (inner layer portion 22) by the load of the inner layer strand 226.

  The orthogonal laminated board 2 comprised as mentioned above can be used for the floor of a building, a wall, etc. as a building material. Then, a plurality of laminas 2111 are arranged on the upper layer portion 21 and the lower layer portion 23 where a large bending moment is generated when a vertical load is applied to the orthogonal laminated plate 2 so that the fiber direction is parallel to the strong axis direction. , 2131, 2111, 2331 are aligned so that the fiber direction is orthogonal to the strong axis direction, and so-called "parallel layers" composed of plies 211, 213, 231, 233 arranged in parallel to the weak axis direction without gaps A so-called “orthogonal layer” composed of plies 212 and 232 in which a plurality of laminas 2121 and 2321 are arranged in parallel to each other in the strong axis direction without gaps is provided, and a bending moment generated compared to the upper layer portion 21 and the lower layer portion 23 is generated. A void portion 223 is formed in the small inner layer portion 22. The distance between the upper layer portion 21 and the lower layer portion 23 responsible for the tensile strength / compression strength of the orthogonal laminated plate 2 is secured by the inner layer portion 22 in which the gap portion 223 is formed (the positions of the upper layer portion 21 and the lower layer portion 23 are Therefore, it is possible to suppress the decrease in tensile strength and compressive strength and to reduce the weight of the orthogonal laminated plate 2, so that the orthogonal laminated plate 2 can be efficiently elongated in the strong axis direction, in other words, the orthogonal assembled. Extension (long span) between the support points of the plate 2 can be achieved. Moreover, since the four large space | gap part 223 is formed in the inner layer part 22, when using the building using the orthogonal laminated board 2, piping or wiring can be accommodated (embedded) here. it can. As a result, the design of the indoor space of the building using the orthogonal assembled board 2 can be enhanced. Furthermore, since the heat retaining effect, the sound absorbing effect, the vibration damping effect, and the like can be obtained by the gap portion 223, a comfortable living space can be provided. Moreover, since the large space | gap part 223 is formed compared with the orthogonal laminated board 1, it can achieve weight reduction efficiently and can extend a strong-axis direction. From this viewpoint, the orthogonal laminated plate 2 is advantageous for a floor where a large vertical load is easily applied.

  Further, the inner layer strand 226 tension-fixed to the inner layer portion 22 exerts a vertical upward load at the central portion of the inner layer portion 22 in the strong axis direction and is subjected to bending reinforcement. Extension to the direction, in other words, extension between the support points of the orthogonal assembly plate 2 (long span) can be achieved.

  In the second embodiment, the tension applied to the inner layer strand 226 is about 100 kN, but the tension applied to the strand 226 is appropriately changed according to the size or design strength of the orthogonal laminated plate 2. Also good. Further, the number and positions of the inner layer strands 226, in other words, the numbers and positions of the first through holes 224 and the second through holes 225 are not limited to those in the second embodiment, and the size and design strength of the orthogonal laminated plate 2 and the like. It may be changed appropriately according to the situation. In the second embodiment, a substantially V-shaped strand 226 is inserted in the inner layer portion 22 in parallel with the strong axis direction and is tension-fixed at both ends. However, the weight is reduced in consideration of the design strength and the like. The strand 226 is not necessarily provided as long as the tensile strength and the compressive strength are sufficient. In this case, the orthogonal assembly plate 2 in which the first through hole 224 and the second through hole 225 are not formed may be used.

(Other embodiments)
Next, embodiments of the present invention other than the first embodiment and the second embodiment will be described.

  The lamina that constitutes the orthogonal laminated board 1 and the orthogonal laminated board 2 is made of cedar, but the timber that makes up the lamina is not limited to cedar, and other kinds of wood (wood) such as cypress and larch are used. May be. Moreover, the orthogonal laminated board 1 and the orthogonal laminated board 2 do not need to be comprised with one type of wood. For example, the type of wood may be different for each ply. Moreover, in the same ply, you may vary the kind of wood for every lamina. Furthermore, although the lamina of the orthogonal laminated plates 1 and 2 is formed of a ground plate, a part or all of the lamina may be replaced with a small square member having a square or rectangular cross-sectional shape.

  In addition, the number and thickness (or lamina thickness) of plies to be laminated in the upper layer portions 11 and 21, the inner layer portions 12 and 22, and the lower layer portions 13 and 23 constituting the orthogonal assembled plates 1 and 2, and the plies to be laminated. The direction of the lamina that constitutes is also not limited to the first embodiment or the second embodiment. Further, the number and thickness of plies laminated in the upper layer portions 11 and 21 may be different from the number and thickness of plies laminated in the lower layer portions 13 and 23. Further, the number of plies in the upper layer portions 11 and 21 and the lower layer portions 13 and 23 and the direction of the lamina constituting the plies can be made different.

  For example, as shown in FIG. 7, instead of the upper layer second ply 112 of the first embodiment below the upper layer first ply 111 of the upper layer part 11, +45 with respect to the strong axis direction of the orthogonal laminated plate 1 An upper layer portion second ply 112 is provided, in which a plurality of sheets (lamina) 1121 having a fiber direction as a tilted direction are arranged without gaps in a direction orthogonal to the fiber direction, and the upper layer portion of the first embodiment In place of the third ply 113, a plurality of saw plates (lamina) 1131 having a fiber direction in a direction inclined by −45 degrees with respect to the strong axis direction of the orthogonal laminated plate 1 have no gap in a direction perpendicular to the fiber direction. You may provide the upper layer 3rd ply 113 comprised by arranging. Similarly, instead of the lower layer second ply 132 of the first embodiment, a plurality of saw plates (lamina) 1321 having a fiber direction in a direction inclined +45 degrees with respect to the strong axis direction of the orthogonal laminated plate 1. Is provided with a lower layer second ply 132 that is arranged without gaps in a direction perpendicular to the fiber direction, and instead of the lower layer third ply 133 of the first embodiment, the strong axis direction of the orthogonal laminated plate 1 Alternatively, a lower layer third ply 133 may be provided in which a plurality of saw plates (lamina) 13 having a direction inclined by −45 degrees are arranged without gaps in a direction perpendicular to the fiber direction. Since the orthogonal assembled plate 1 has a rectangular shape in plan view, the shape of each of the plurality of saw plates with the direction inclined by ± 45 degrees as the fiber direction is different. In addition, the ply constituted by a plurality of strips having the fiber direction in the direction inclined by +45 degrees with respect to the strong axis direction as described above is formed as the upper layer first ply 111, the upper layer second ply 112, and the lower layer first An upper layer second ply 112 is formed between a first ply 131 and a lower layer second ply 132. The ply is composed of a plurality of strips having a fiber direction in a direction inclined by −45 degrees with respect to the strong axis direction. It may be provided between the upper layer third ply 113 and the lower layer second ply 132 and the lower layer third ply 133. Furthermore, a ply made of a plurality of laminaes arranged so that the fiber direction has an oblique angle of ± 45 degrees or the like with respect to the strong axis direction, that is, a pair of plies that are symmetric is formed on the upper layer part 11 and the lower layer part 13 You may arrange | position outside.

  Further, in addition to the upper layer portion 11 and the lower layer portion 13, or for the upper layer portion 11 and the lower layer portion 13, an inner layer portion is provided without providing a ply made of a fiber plate in the direction of ± 45 degrees with respect to the strong axis direction. 12 may be provided with a ply made of a fiber plate in the direction of ± 45 degrees. For example, between the inner layer portion first ply 121 and the inner layer portion second ply 122 of the inner layer portion 12, a plurality of saw plates having a fiber direction in a direction inclined +45 degrees with respect to the strong axis direction of the orthogonal assembly plate 1 Are arranged in a direction perpendicular to the fiber direction with no gap between them, and between the inner layer second ply 122 and the inner layer third ply 123 of the inner layer portion 12, the strong axis direction of the orthogonal laminated plate 1 Alternatively, a ply may be provided in which a plurality of saw plates having a fiber direction in a direction inclined by −45 degrees with respect to the fiber direction are arranged without gaps in a direction orthogonal to the fiber direction. Here, in the inner layer portion 12, the direction inclined by ± 45 degrees with respect to the strong axis direction is defined as the fiber direction, similarly to the inner layer first ply 121, the inner layer second ply 122, and the inner layer third ply 123. A ply may be provided in which a plurality of ground plates are arranged at a predetermined interval in a direction orthogonal to the fiber direction. That is, with respect to the ply configured by arranging a plurality of ground plates having a fiber direction in a direction rotated ± 45 degrees with respect to the strong axis direction of the orthogonal assembly plate 1 without gaps in the direction orthogonal to the fiber direction, as appropriate (For example, every other board) may be thinned out. Since the orthogonal assembled plate 1 has a rectangular shape in plan view, the shape of each of the plurality of saw plates with the direction rotated ± 45 degrees as the fiber direction is different. Further, the inner layer portion 12 may be configured by only a pair of plies that are symmetrical in the plan view and the fiber directions of the plurality of laminaes that are configured are oblique.

  In this way, there is provided a ply that is configured by arranging a plurality of ground plates having a fiber direction with an oblique angle inclined by ± 45 degrees with respect to the strong axis direction at a predetermined interval in a direction perpendicular to the fiber direction. As a result, the horizontal rectangles of the orthogonal assembled plates 1 and 2 are constrained and the in-plane deformation is reduced, so that the structural stability is improved.

  In the orthogonal assembly plate 2, the through hole 234 is vertically formed in the weak axis direction in the lamina 2321 constituting the lower layer second ply 232 of the lower layer 23, but the configuration of the through hole 234 is Not limited. For example, the lower portion strand 235 is inserted between the adjacent lamina 2321 and lamina 2321 arranged in parallel in the strong axis direction, and the adjacent lamina 2321 and lamina 2321 are separated by a predetermined distance (for example, the lower portion strand 235). The through hole 234 may be formed with a gap penetrating in the weak axis direction.

  Further, in the inner layer portion 12 of the orthogonal assembly plate 1, gap portions 1212, 1222, and 1232 having the same width as the laminas 1211, 1221, and 1231 are formed in the respective plies 121, 122, and 123. A gap portion is formed in approximately half of 123, in other words, approximately half of the inner layer portion 12, but the ratio of the gap portion to each ply or the ratio of the inner layer portion 12 is not limited to approximately half and is set as appropriate. be able to. Further, the ratio of the gaps may not be the same or substantially the same for each ply constituting the inner layer part 12. You may vary the ratio of a space | gap part for every ply. Moreover, you may vary the ratio of a space | gap part according to the direction of the board or small-corner material which comprises a lamina. For example, the ratio of the ply gaps made of lamina whose fiber direction is parallel to the strong axis direction may be smaller than the ratio of the ply gaps made of lamina whose fiber direction is parallel to the weak axis direction. On the contrary, the proportion of the ply gap portion made of lamina whose fiber direction is parallel to the strong axis direction may be larger than the proportion of the ply gap portion made of lamina whose fiber direction is parallel to the weak axis direction. Moreover, you may make it the ratio of a space | gap part become large as it goes to the center position in the lamination direction of the orthogonal laminated board 1. FIG.

  Moreover, in each ply 121,122,123 of the inner layer part 12, the space | gap part 1212,1222,1232 is necessarily formed between adjacent lamina 1211,1221,1231, but the space | gap part 1212,1222,1232 is formed. The positions where the gaps 1212, 1222, and 1232 are formed are not limited to this. That is, the thinned out laminas 1211, 1221, and 1231 can be set as appropriate. For example, the gaps between the adjacent laminas 1211, 1221, and 1231 may be constituted by gaps 1212, 1222, and 1232 every other interval. That is, two laminas 1211, 1221, and 1231 arranged in the width direction of the laminas 1211, 1221, and 1231 may be set as one set, and the gaps 1212, 1222, and 1232 may be formed between the sets. In other words, between the laminas 1211, 1221, and 1231, no gap (no gap) and gap (with gap) may be repeated.

  Moreover, in each ply 121,122,123 of the inner layer part 12, the lamina 1211,1221,1231 is distribute | arranged to the both ends of the direction where the lamina 1211,1221,1231 is arranged in parallel, and the space | gap part 1212 is located in both ends. , 1222, 1232 are not formed, but gaps 1212, 1222, 1232 may be formed at one end or both ends.

  Moreover, in all the plies 121, 122, and 123 that constitute the inner layer portion 12, gap portions 1212, 1222, and 1232 are formed in the laminas 1211, 1221, and 1231. However, in any of the plies 121, 122, and 123, Gaps 1212, 1222, and 1232 may be formed. For example, the gap 1222 may be formed only in the ply 122 made of lamina whose fiber direction is parallel to the strong axis direction. Moreover, you may make it the space | gap part 1212 and 1232 be formed only in the plies 121 and 123 which consist of lamina whose fiber direction is parallel to a weak-axis direction.

  For example, as described above, when piping or wiring is installed in the inner layer portion 12, the widths (lengths in the minor axis direction) of the gap portions 1212, 1222, and 1232 for installing the piping and wiring are widened. Also good. Moreover, in order to ensure the height of the space | gap part in ply 121,122,123, the height of lamina 1211,1221,1231 may be made high, or each lamina 1211,1221,1231 may be stacked in multiple steps. good. In this case, for example, the height of only a specific ply may be increased, for example, by increasing the height of the ply 122 made of a plurality of lamina arranged so that the fiber direction is parallel to the strong axis direction. .

  Further, a part or all of the gaps 1212, 1222, and 1232 may be replaced with a plate-like member made of a material having the same shape as the gaps 1212, 1222, and 1232 and having a lighter weight than cedar (wood) such as styrene foam. good. In this case, only the gap portion of the specific ply may be replaced, or only the gap portion of the specific portion of the specific ply may be replaced.

  Further, the inner layer portion 22 of the orthogonal assembly plate 2 is formed by sequentially laminating the inner layer portion first ply 221 and the inner layer portion second ply 222. The upper portion of the inner layer portion 22 is constituted by the inner layer portion first ply 221. The lower part may be constituted by the inner layer second ply 222. Further, the upper part of the inner layer part 22 may be constituted by the inner layer part second ply 222 and the lower part may be constituted by the inner layer part first ply 221. Further, the inner layer portion 22 may be constituted by only one of the inner layer portion first ply 221 and the inner layer portion second ply 222.

  Moreover, in the inner layer part 22, like the inner layer part 12 of the orthogonal assembly board 1, the ply is composed of a plurality of laminaes whose fiber direction is parallel to the strong axis direction, and the lamina whose fiber direction is parallel to the weak axis direction. You may comprise so that a ply may be laminated | stacked in order. That is, the six laminas 2211 of the inner layer first ply 221 and the six laminas 2222 of the inner layer second ply 222 may not be provided. Further, the lamina 2211 of the inner layer first ply 221 and the lamina 2222 of the inner layer second ply 222 may not be provided. For example, it is possible not to provide only the lamina 2211 arranged in the weak axial direction central part of the inner layer first ply 221 and the lamina 2222 arranged in the strong axial direction central part of the inner layer second ply 222. . Further, in this case, the lamina 2211 disposed at both ends of the inner layer portion first ply 221 in the weak axis direction and the lamina constituting the lamina 2222 disposed at both ends of the inner layer portion second ply 222 in the strong axis direction, You may replace with the plate-shaped member which consists of a raw material whose mass is lighter than cedar (wood), such as a polystyrene foam which consists of the same shape. Also, the lamina 2211 disposed on the inner layer first ply 221 and the lamina constituting the lamina 2222 disposed on the inner layer second ply 222 are lighter in weight than cedar (wood) such as styrene foam having the same shape. A plate-like member made of any material may be used. On the contrary, the lamina 2212 disposed on the inner layer first ply 221 and the lamina constituting the lamina 2221 disposed on the inner layer second ply 222 have a mass greater than that of cedar (wood) such as styrene foam having the same shape. You may replace with the plate-shaped member which consists of a lightweight raw material. Further, the lamina 2211, 2122 of the inner layer first ply 221 and the laminas 221, 2222 constituting the inner layer second ply 222 are all lighter in weight than cedar (wood) such as styrene foam having the same shape. You may replace with the plate-shaped member which consists of a raw material.

  In addition, the inner layer portion 22 of the orthogonal assembly plate 2 is formed in a lattice shape in which the gap portion 223 is configured by 2 × 2 in plan view, but the number of vertical and horizontal numbers are set appropriately. can do. The vertical number and the horizontal number may be the same or different.

  In addition, the second through hole 225 is formed in an oblique direction so as to face the first through hole 224 opposed on a straight line parallel to the strong axis direction, but parallel to the first through hole 224 (in the horizontal direction). ) May be formed. Further, it may be inclined in the direction opposite to the second through-hole 225, that is, inclined so as to descend toward the outer side in the strong axis direction. At least the inner layer strand 226 in the gap 223 and the first through-hole 224 is held in a substantially V shape with the lower side as a trough (bent portion) when viewed from the weak axis direction, and with respect to the inner layer 22 It suffices if a vertical load can be applied to the side opposite to the valley (the bent portion).

  Further, in the orthogonal laminated plates 1 and 2, for example, the lamina constituting the upper layer portions 11 and 21 and the lower layer portions 13 and 23 is basically made of a wooden board, but a reinforcing plate made of carbon fiber reinforced plastic on the board. May be combined to form a composite. You may make it stick the reinforcement board which consists of a carbon fiber reinforced plastic in which a fiber direction corresponds to the board | plate which comprises a lamina to the lamina simple substance. In this case, you may stick a reinforcement board with respect to all the lamina which comprise the upper layer parts 11 and 21 and the lower layer parts 13 and 23. FIG. Or you may make it stick a reinforcement board about a specific ply or a lamina of a specific position. For example, as shown in FIG. 8 (A), the upper direction of the upper layer part first ply 111 and the lower surface of the upper layer part third ply 113 made of a plurality of laminas whose fiber directions are parallel to the strong axis direction are long. A reinforcing plate 114 having the same length as that of the plies 111 and 113, a width smaller than that of the plies 111 and 113, and a thickness of 5 mm is pasted with a predetermined adhesive. Here, the reinforcing plate 114 is made of carbon fiber reinforced plastic obtained by impregnating a plurality of carbon fibers whose fiber directions are aligned substantially in one direction with a thermosetting resin. The fiber direction (aligned direction) of the carbon fibers included in the reinforcing plate 114 is parallel to the fiber direction of the saw plate constituting the lamina (the strong axis direction of the orthogonal laminated plate 1). Further, every other reinforcing plate 114 is affixed to the plurality of laminas 1111 and 1131 arranged side by side along the weak axis direction in the weak axis direction. Further, as shown in FIG. 8B, a recess for fitting the reinforcing plate 114 is formed on the upper surface of the lamina 1111 to which the reinforcing plate 114 is attached and the bottom surface of the lamina 1131, and the reinforcing plate 14 is attached to the lamina 1111. The upper surface and the bottom surface of the lamina 1131 may be fitted and pasted. The shape of the reinforcing plate 114 is not particularly limited, and may be the same as the width of the lamina to which the reinforcing plate 114 is attached.

  The upper layer portions 11 and 21 and the lower layer portions 13 and 23 are arranged outside or inside or between the upper layer portions 11 and 21 and the lower layer portions 13 and 23 and the inner layer portions 12 and 22 in plan view. Reinforcing plates having substantially the same shape as the portions 13 and 23 may be attached with a predetermined adhesive. Or, between the upper layer portion first plies 111, 211 and the upper layer portion second plies 112, 212 and between the upper layer portion second plies 112, 212 and the upper layer portion third plies 113, 213. Any one or both of them may be provided with a reinforcing plate having the same shape as the upper layer portions 11 and 21 in a plan view. Further, between the lower layer first plies 131, 231 and the lower layer second plies 132, 232 of the lower layer parts 13, 23, and between the lower layer second plies 132, 232 and the lower layer third plies 133, 233. Any one or both of them may be provided with a reinforcing plate having the same shape as the lower layer portions 13 and 23 in plan view. For example, when a reinforcing plate is disposed in the upper layer part 11, as shown in FIG. 9, the upper layer part 11 is located between the upper layer part first ply 111 and the upper layer part second ply 112, and the upper layer part second ply 112 and the upper layer. Reinforcing plates 114 and 115 are arranged at two positions between the third ply 113 and the third ply 113. In this case, the reinforcing plates 114 and 115 are both made of carbon fiber reinforced plastic, but the reinforcing plate 114 disposed between the upper layer first ply 111 and the upper layer second ply 112 has substantially the same fiber direction. The reinforcing plate 115 is composed of a plurality of carbon fibers aligned in the direction, and is arranged between the upper layer second ply 112 and the upper layer third ply 113. Made of carbon fiber. Further, the fiber direction of the carbon fibers contained in the reinforcing plate 114 is parallel to the strong axis direction of the orthogonal assembly plate 1, and the fiber direction of the carbon fibers contained in the reinforcement plate 115 is relative to the strong axis direction of the orthogonal assembly plate 1. Tilt 45 degrees. In this case, although not shown, the reinforcing plate 114 is disposed between the lower layer portion third ply 133 and the lower layer portion second ply 132 so that the fiber direction of the carbon fiber is parallel to the strong axis direction. The reinforcing plate 115 is disposed between the second ply 132 and the lower layer first ply 131 so that the fiber direction of the carbon fiber is ± 45 degrees with respect to the strong axis direction.

  Thus, by combining the reinforcing plate 114 made of carbon fiber reinforced plastic and the reinforcing plates 114 and 115 with the orthogonal assembly plates 1 and 2, the thicknesses of the upper layer portions 11 and 21 and the lower layer portions 13 and 23 are increased. In addition, the weight of the orthogonal assembled plates 1 and 2 can be reduced. In addition, the material which comprises a reinforcement board and a reinforcement board is not limited. For example, the reinforcing plate or the reinforcing plate may be configured using other reinforcing fibers such as glass fiber or aramid fiber. Further, the reinforcing plate or the reinforcing plate may be composed of a single reinforcing fiber, or may be composed of a composite material in which a plurality of reinforcing fibers are combined. Furthermore, you may comprise a reinforcement board and a reinforcement board using other synthetic resins, such as a thermoplastic resin.

1, 2 ... Orthogonal laminated plates 11, 21 ... Upper layer part (first outer layer part)
12, 22 ... Inner layer part (inner layer part)
13, 23 ... lower layer part (second outer layer part)
111, 211 ... Upper layer first ply (first outer layer ply)
112, 212 ... upper layer part second ply 113, 213 ... upper layer part third ply (first outer layer ply)
114, 115 ... Reinforcing plates 121, 221 ... Inner layer first ply (inner layer first ply)
122, 222 ... inner layer second ply (inner layer second ply)
123... Inner layer third ply 131, 231... Lower layer first ply (second outer ply)
132,232 ... lower layer second ply 133,233 ... lower layer third ply (second outer layer ply)
1111, 1121, 1131, 1211, 1221, 1231, 1311, 1321, 1331, 2121, 2122, 2221, 2222, 2311, 2321, 2331 ... Lamina 1212 ... First gap (linear gap)
1222 ... 2nd space | gap part (linear space | gap part)
1232 ... 3rd space | gap part (linear space | gap part)
124: Inner layer void portion 223 ... Void portion (cuboid void portion)
224 ... 1st through-hole 225 ... 2nd through-hole 226 ... Inner layer part strand (tension material)
227: Adhesive 234 ... Insertion hole 235 ... Lower layer strand

The orthogonal laminated board based on this invention made | formed in order to solve the said subject is equipped with the following structures.
(1) A ply formed by arranging a plurality of laminas made of plate-like wood members in the alignment direction and arranged in the width direction is laminated so that the alignment directions are orthogonal to each other, and both outer sides along the lamination direction In the orthogonal laminated plate in which the orientation directions of the lamina constituting the ply arranged in are parallel,
A first outer layer portion formed on one outer side with respect to the stacking direction; a second outer layer portion formed on the other outer side; an inner layer portion disposed between the first outer layer portion and the second outer layer portion; With
The first outer layer portion includes at least a first outer layer ply arranged on the outer side of the one side, in which a plurality of laminaes whose fiber directions are aligned in the first direction (strong axis direction) are arranged without gaps in the width direction. Have
The second outer layer portion has at least a second outer layer ply arranged on the outer side of the other and having a plurality of laminaes whose fiber directions are aligned in the first direction and arranged without gaps in the width direction,
The inner layer portion includes an inner layer first ply made of a wood member having at least a fiber direction parallel to the second direction (strong axis direction), and a third direction (weak axis) in which the fiber direction is orthogonal to the second direction. An inner layer second ply made of a wooden member parallel to (direction), and two rectangular parallelepiped voids along the second direction ,
The inner layer first ply and the inner layer second ply form a frame-like wall portion surrounding the rectangular parallelepiped space,
The wall portion includes an intermediate wall portion formed between the two rectangular parallelepiped void portions and an outer wall portion formed outside the two rectangular parallelepiped void portions in the second direction. ,
A tension material is inserted across the intermediate wall portion and both the outer wall portions,
The tension material is held in a substantially broken line shape that bends at the intermediate wall portion when viewed in the third direction, and is tension-fixed at both the outer wall portions to have a tension force,
The tendon material is characterized in that a vertical load is applied to the intermediate wall portion in a direction opposite to the bent portion .
( 2 ) An orthogonal assembly board of (1 ) ,
The overall shape is rectangular in plan view,
At least one of the first direction and the second direction is parallel to the long side direction of the orthogonal laminated plate.
( 3 ) An orthogonal assembly board according to (1) or ( 2) ,
The overall shape is rectangular in plan view,
At least one of the first direction and the second direction is a direction inclined with respect to the long side direction of the orthogonal laminated plate.
(4) Any one of the orthogonal assembled plates of (1) to ( 3 ),
A plate-like reinforcing plate containing reinforcing fiber plastic is laminated and bonded to form a composite .

Claims (8)

A ply made up of a plurality of laminas made of plate-like wood members aligned in the width direction and aligned in the orientation direction is laminated so that the orientation directions are orthogonal to each other, and arranged on both outer sides along this lamination direction. In the orthogonal laminated plate in which the orientation directions of the lamina constituting the ply are parallel,
A first outer layer portion formed on one outer side with respect to the stacking direction; a second outer layer portion formed on the other outer side; an inner layer portion disposed between the first outer layer portion and the second outer layer portion; With
The first outer layer portion has at least a first outer layer ply arranged on the outer side of the one side, in which a plurality of laminaes whose fiber directions are aligned in the first direction are arranged without gaps in the width direction,
The second outer layer portion has at least a second outer layer ply arranged on the outer side of the other and having a plurality of laminaes whose fiber directions are aligned in the first direction and arranged without gaps in the width direction,
In the inner layer portion, at least an inner layer first ply made of a wood member whose fiber direction is parallel to the second direction, and an inner layer made of a wood member whose fiber direction is parallel to a third direction orthogonal to the second direction An orthogonal assembly plate, wherein a second ply and a gap are provided. The orthogonal assembly board according to claim 1,
The inner layer first ply is configured by arranging a plurality of laminaes whose fiber directions are aligned in the second direction in the width direction,
The inner layer second ply is configured by arranging a plurality of laminaes whose fiber directions are aligned in the third direction in the width direction,
Among a plurality of laminaes constituting either or either one of the inner layer first ply and the inner layer second ply, between some adjacent lamina and lamina, or between all adjacent lamina and lamina An orthogonal assembly plate, characterized in that a linear linear void portion having both ends opened along the fiber direction of the lamina is formed, and the linear void portion constitutes the void portion. The orthogonal assembly board according to claim 1,
The inner layer portion includes a rectangular parallelepiped-shaped void portion and a frame-shaped wall portion surrounding the rectangular solid-shaped void portion,
The rectangular parallelepiped void is the void.
An orthogonal assembly plate, wherein the inner layer first ply and the inner layer second ply form the wall portion. The orthogonal assembly board according to claim 3,
Two rectangular parallelepiped voids along the second direction are formed in the inner layer portion,
The wall portion includes an intermediate wall portion formed between the two rectangular parallelepiped void portions and an outer wall portion formed outside the two rectangular parallelepiped void portions in the second direction. ,
A tension material is inserted across the intermediate wall portion and both the outer wall portions,
The tension material is held in a substantially broken line shape that bends at the intermediate wall portion when viewed in the third direction, and is tension-fixed at both the outer wall portions to have a tension force,
The orthogonal laminated board characterized by the said tension | tensile_strength giving the perpendicular | vertical load toward the opposite side to the bent part to the said intermediate wall part. It is an orthogonal laminated board as described in any one of Claims 1 thru | or 4, Comprising:
The overall shape is rectangular in plan view,
At least any one of said 1st direction and said 2nd direction is parallel to the long side direction of the said orthogonal assembly board, The orthogonal assembly board characterized by the above-mentioned. It is an orthogonal laminated board as described in any one of Claims 1 thru | or 4, Comprising:
The overall shape is rectangular in plan view,
At least any one of said 1st direction and said 2nd direction is a direction which inclines with respect to the long side direction of the said orthogonal assembly board, The orthogonal assembly board characterized by the above-mentioned. It is an orthogonal laminated board as described in any one of Claims 1 thru | or 6, Comprising:
An orthogonal assembly board, wherein a plate-like reinforcing board containing reinforcing fiber plastic is laminated and bonded to form a composite. A joining structure for joining the orthogonal assembly plate according to claim 2 and the planar member at right angles,
One or more rod-shaped members are fixed to the planar member substantially vertically,
The orthogonal assembly plate is arranged orthogonal to the planar member so that the direction of the linear void is parallel to the orthogonal direction of the planar member;
The rod-shaped member is inserted into the linear gap portion.

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