JP2010221514A - Structural laminated lumber - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structural laminated lumber which is hardly deflected and has a required shear strength. <P>SOLUTION: The square timber-shaped structural laminated lumber 10 having integrally bonded five or more layers includes an outside layer Aa positioned at the outermost side, a reinforcing layer Ab adjacent to the outside layer Aa, and an inside adjacent layer Ac sandwiching the reinforcing layer Ab with the outside layer Aa. The reinforcing layer Ab includes a plurality of square timbers 12 and a reinforced fiber sheet 13 arranged side by side. The reinforced fiber sheet 13 is bent and sandwiched between the square timber 12 and the outside layer Aa or the inside adjacent layer Ac, and between the square timbers 12, 12 adjacent to each other and provided so as to extend from one end to the other end in the width direction of the reinforced layer Ab. A plate-like material 11 and the square timber 12 composing respective layers (A) which are integrally bonded are constituted by making the direction of the fiber approximately parallel. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention adapts to a strong compressive stress generated on the load-adding side and a strong tensile stress generated on the opposite side, and is not easily bent despite a small cross-sectional area and is not easily sheared. Is to provide.

  Various laminated materials that have been quality-controlled with the effective use of wood and minimal wrinkles unique to individual wood are used as building materials. Such a laminated material has an advantage that it can be configured to be artificially adapted to the usage object of the laminated material in consideration of various conditions.

  In view of this, recently, there is a tendency to construct a structural material such as a beam, not limited to a construction material, with a laminated material. For example, in a structural material subjected to a high bending stress such as a beam, a material such as a different grade composed laminated material Tends to be used, and there is a tendency to inconvenience in terms of securing the constituent material of the laminated material and manufacturing cost.

  From this point, attempts have been made to reinforce or reinforce the laminated wood using various materials. For example, for the purpose of increasing the bending strength, the reinforcing fiber sheet is sandwiched between the single plates in the fiber direction of the single plate, and they are bonded to form a large plywood, and the plywood is cut along the edge of the reinforcing fiber sheet. It is disclosed that a plurality of plywood members are arranged as members, and a reinforcing fiber sheet is arranged in the lower portion and laminated and bonded to the left and right to form a wooden beam (for example, Patent Document 1).

  In addition, for the purpose of providing a fiber-reinforced glulam that can be easily manufactured at low cost, it is proposed to form a fiber-reinforced glulam by arranging and bonding carbon fiber bundles between multiple layers of wood material (For example, Patent Document 2).

In addition, a laminated material including at least one layer of a fiber reinforced resin composite, a lightweight, high toughness, high rigidity, high hygroscopic property, and a good aggregating property against dry shrinkage of wood, a specific aramid fiber, particularly A laminated material obtained by bonding at least one layer of para-type aramid fiber and / or meta-type aramid fiber reinforced resin composite has been proposed (for example, Patent Document 3).

JP 2002-21252 A JP 2007-245431 A JP 2007-245457 A

  In the manufacturing method of building members such as wooden beams and wooden beams and columns described in Patent Document 1 to Patent Document 3, fiber reinforced laminated materials, and aramid fiber reinforced laminated materials, all are intended to reinforce the laminated materials. However, each layer located inside each outer layer that follows each outer layer of the laminated material that is located on the outermost side in the laminating direction of the laminated material is a reinforcing layer, and is generated on the load side of the wooden beam or the like One sheet that is effectively provided for compressive stress and tensile stress generated on the side opposite to the load side, and is continuously provided to bend sequentially in the width direction and the thickness direction of the laminated material. There was no laminated wood reinforced with reinforcing fiber sheets.

  From this point of view, it is possible to effectively provide a laminated material having reinforcement against bending and means for strengthening shear on the side on which the compressive stress is applied and the side on which the tensile stress is applied in the structural material such as a beam. It was sought after.

In order to achieve the above object, in the present invention, there is a structural laminated material having a square material shape of five or more layers integrated into an adhesive,
This structural laminated material includes an outermost layer located on the outermost side, a reinforcing layer adjacent to the outer layer, and an inner adjacent layer that sandwiches the reinforcing layer between the outer layer,
The reinforcing layer comprises a plurality of prismatic materials and reinforcing fiber sheets arranged side by side,
The reinforcing fiber sheet is bent and sandwiched between the rectangular material and the outer layer or the inner adjacent layer and between the adjacent rectangular materials, and extends from one end to the other end in the width direction of the reinforcing layer. The structural laminated material is characterized in that the plate-like material and the square-like material constituting each of the layers integrated with each other are substantially parallel to each other.

  In the laminated material constituted in this way, when the laminated material is used for a beam or the like, it was reinforced with a reinforcing fiber sheet on the side on which the compressive stress acts and on the side on which the tensile stress acts A reinforcing layer is provided, and the reinforcing layer is configured to include a plurality of rectangular materials and reinforcing fiber sheets arranged in parallel so as to form a plate shape. The reinforcing member is bent and provided so as to extend from one end to the other end in the width direction between the rectangular member and the outer layer or the inner adjacent layer, and sandwiched between the adjacent rectangular members. Therefore, it is possible to effectively provide the bending strength and the shear strength required for the structural laminated material having a square bar shape.

  That is, in the present invention, the reinforcing layer provided adjacent to the outermost layer of the structural laminated material in the form of a square in a laminated state is provided in the width direction of the reinforcing layer. And a structure including a single reinforcing fiber sheet that is continuous in a direction that intersects the direction of the width direction, and that is difficult to bend by the reinforcing fiber sheet and has a required shear strength. As laminated wood.

  Further, in the square-like structural laminated material configured in the laminated state, along the longitudinal edge of the reinforcing fiber sheet that is bent and extends from one end to the other end in the width direction of the reinforcing layer In the case of the structural laminated material sandwiched between the rectangular material constituting the reinforcing layer and the outer layer provided along the longitudinal edge of the structural laminated material, For structural materials that are more difficult to bend, the structure is such that more reinforcing fiber sheets are interposed between the outermost outer layer and the reinforcing layer in the square-like structural laminated material that is configured in a state. Made of laminated timber.

  Furthermore, in the case of a square-like structural laminated material configured as a carbon fiber cloth, the reinforcing fiber sheet is difficult to bend, has the required shear strength, and has excellent heat resistance. Made of wood.

  The present invention uses a layer adjacent to the outermost layer located on the outermost side of the laminated laminated laminated structural material as a reinforcing layer, and uses the reinforcing fiber sheet provided in each reinforcing layer as the angular shape of the reinforcing layer. Bending between the material and the outer layer or the inner adjacent layer, and between the adjacent rectangular materials, and extending from one end to the other end in the width direction of the reinforcing layer, is difficult to bend The structural laminated material having the required shear strength can be used to construct a beam or the like with a structural laminated material having a cross-sectional area as small as possible. By doing so, the degree of freedom in designing the space behind the ceiling can be increased, and a living room with a sufficient ceiling height on the lower floor can be designed.

FIG. 1 shows a structural laminate formed by laminating in a typical thickness direction, with its main part being viewed obliquely from above in the laminated state. FIG. 2 shows a process of manufacturing a typical structural laminate, and includes a plate-like material forming an outermost layer positioned on the outermost side, a reinforcing fiber sheet bonded to the plate-like material, and The main parts of the square-shaped material used for constituting the reinforcing layer are shown as viewed obliquely from above. FIG. 3 shows a process of manufacturing a typical structural laminate, in which a reinforcing fiber sheet is bonded to a plate-like material forming an outermost layer positioned on the outermost side, and the width in the plate-like material is shown. One end side in the width direction of the reinforcing fiber sheet (portion along one longitudinal edge in the reinforcing fiber sheet) on one end side in the direction (portion along one longitudinal edge in the plate-like material) is sandwiched The main part in the state where the first square member is bonded is shown obliquely from above. FIG. 4 shows another process of manufacturing a typical structural laminated material. The reinforcing fiber sheet is erected along the first square member from the state shown in FIG. The main part of the state which adhere | attaches so that a 2nd square material may be arranged in a line with the said 1st square material so that the bent reinforcing fiber sheet may be pinched | interposed is shown from diagonally upward. FIG. 5 shows still another process for producing this typical structural laminated material, in which a reinforcement covering a second square member juxtaposed to the first square member is shown. In a state where the fiber sheet is bonded to the plate-like material positioned outside, the third square material is attached to the second square material, and the second square material and the outside are connected to the second square material. The main part of the state bonded | attached in the state arranged in parallel with the said 2nd square material so that the said reinforcing fiber sheet | seat may be pinched | interposed between the plate-shaped materials located in FIG. FIG. 6 shows a configuration in which a reinforcing layer is composed of a plurality of rectangular materials and reinforcing fiber sheets on a plate-like material forming an outermost outer layer located on the lower side, and the reinforcing layer is disposed on the outer side. Laminate and bond the plate-like material constituting the inner adjacent layer sandwiched between the layers to the reinforcing layer, and further laminate and bond the plate-like material of the required number of layers required for the structural laminated material. In addition, a reinforcing layer similar to the reinforcing layer, that is, one end side in the width direction of the plate-like material forming the laminated inner adjacent layer (a portion along one longitudinal edge of the plate-like material) The first horn member is bonded to the horn member, and the one end side in the width direction of the reinforcing fiber sheet covering the horn member (along one longitudinal edge of the reinforcing fiber sheet). The reinforcing fiber sheet is hung down to the plate-like material forming the inner adjacent layer, And the reinforcing fiber sheet extending outwardly from the second rectangular material, and sandwiched between the second rectangular material and the plate-like material forming the inner adjacent layer. Pulled upward, a third rectangular material is inserted between the reinforcing fiber sheet and the plate-shaped material forming the inner adjacent layer, and the reinforcing fiber is interposed between the third rectangular material and the second rectangular material. While the sheet is sandwiched, the third rectangular material is covered with the reinforcing fiber sheet, and the reinforcing fiber sheet extending outward from the third rectangular material is the third rectangular material. Affixed to the plate-like material surface constituting the inner adjacent layer from the side surface of the material, the fourth square material, the reinforcing fiber sheet is pressed against the plate-like material constituting the third square material and the inner adjacent layer, The reinforcing fiber sheet pulled upward from between the plate-like material forming the inner adjacent layer with the fourth square-shaped material. A portion along the longitudinal edge of the reinforcing fiber sheet is inserted in a state where the fifth rectangular material is inserted in the direction and the reinforcing fiber sheet is pressed against the side surface of the fourth rectangular material with the fifth rectangular material. The state of being attached to the upper surface of the fifth square member and the other outer layer plate member positioned on the outermost layer laminated on the reinforcing layer are shown obliquely from above. FIG. 7 shows a typical structural laminated material according to the present invention, which is shown in a cross section in a direction perpendicular to the longitudinal direction and viewed from the side. FIG. 8 is a laminated material according to a conventional example corresponding to the laminated material according to the present invention, and is shown in a cross-section in a direction perpendicular to the longitudinal direction. FIG. 9 is a laminated material according to still another conventional example corresponding to the laminated material according to the present invention, and is shown in a cross-section in a direction orthogonal to the longitudinal direction.

  A typical structural laminated material 10 according to the present invention is a structural laminated material that is formed of a laminated body that is integrally bonded, and has a square shape that is configured to have a predetermined length in which the direction of fibers is a longitudinal direction. The structural laminated material 10 includes five or more layers having a predetermined length, a predetermined width, and a predetermined thickness that can be laminated to form a square-shaped structural laminated material 10. The structural laminated material 10 has a width dimension of a layer, a thickness dimension obtained by overlapping the layers, and a length dimension corresponding to the length dimension of the superimposed layers. It can be used as a structural material such as a beam.

  The structural laminated material 10 includes an outer layer Aa positioned on the outermost side, a reinforcing layer Ab adjacent to the outer layer Aa, and an inner side of the reinforcing layer Ab between the outer layer Aa. And an adjacent layer Ac. That is, the structural laminated material 10 includes reinforcing layers Ab and Ab between the outermost layers Aa and Aa located on the outermost side and the inner adjacent layers Ac and Ac of the outer layers Aa and Aa, respectively. The reinforcing layer Ab constitutes the structural laminated material 10 together with the outer layer Aa and the inner adjacent layer Ac, and the structure is similar to the outer layer Aa and the inner adjacent layer Ac. It is set as the structure provided with the elongate length dimension which comprises the laminated material 10, and the width dimension and the thickness dimension.

  Each of the reinforcing layers Ab includes a plurality of square members 12 to 12 and a reinforcing fiber sheet 13 arranged side by side, and the reinforcing fiber sheet 13 includes the square member 12 and the outer layer Aa. Alternatively, as a configuration provided to be bent so as to extend from one end to the other end in the width direction of the reinforcing layer Ab in a state sandwiched between the inner adjacent layers Ac and between the adjacent square members 12, 12. The reinforcing layer Ab is configured so as to form a plate-like material 11 ′ in which the square material 12 and the reinforcing fiber sheet 13 are integrally bonded. That is, the reinforcing fiber sheet 13 is provided so as to extend from one end in the width direction to the other end of the long plate-like material 11 ′ that is integrally bonded.

  In such a structural laminated material 10, the long plate-like plate-like material 11 and the long-shaped square-like material 12 constituting each layer A integrated with each other are made substantially parallel to each other. Configured.

  In the structural laminated material 10 configured as described above, when the structural laminated material 10 is used for a beam or the like, typically, a side on which compressive stress acts and a side on which tensile stress acts Further, a reinforcing layer Ab reinforced with a reinforcing fiber sheet 13 is provided, and the reinforcing layer Ab is formed of a plurality of square members 12 to 12 and reinforcing fibers arranged side by side so as to form a plate shape. A state in which the reinforcing fiber sheet 13 is sandwiched between the rectangular material 12 and the outer layer Aa or the inner adjacent layer Ac and between the adjacent rectangular materials 12 and 12. The reinforcing layer Ab is bent so as to extend from one end to the other end in the width direction, and the bending layer and the shear strength required for the structural laminated material 10 constituted by the reinforcing layer Ab. Can be brought about effectively.

  That is, according to the present invention, the structural laminated material 10 is prepared as a predetermined long material, and the structural laminated material 10 has a predetermined width dimension and is laminated and integrated to have a predetermined thickness. The reinforcing layer Ab that is provided adjacent to the outermost layer Aa that is positioned on the outermost side of the laminated structure is one end in the width direction of the structural laminated material 10. The reinforcing fiber sheet 13 is provided so as to extend from the other end to the other end, and in addition, the reinforcing fiber sheet 13 is continuously arranged in a direction in the width direction of the structural laminated material 10 and a direction intersecting the direction in the width direction. The reinforcing fiber sheet 13 is provided so as to be continuous, and the reinforcing fiber sheet 13 has a direction in the width direction in the structural laminated material 10 and a tension and a compression in a direction crossing the direction in the width direction. In Results to are as may correspond.

As long as the structural laminated material 10 comprised here is comprised as a laminated body provided with the thickness dimension of five layers or more, you may comprise in any number of layers, and each layer is a structural laminated material layer. As long as it is a plate-shaped material that constitutes, any material may be used, and any configuration may be used.
For example, even in the case of a solid wooden board such as a ground board, various materials are joined in the longitudinal direction according to a standard method so that the directions of the fibers of the respective materials are aligned, and bonded in the width direction. Even if it is constructed using a wooden laminated board that is configured to have a plate thickness dimension, width dimension, and length dimension of a predetermined shape by width stripping, etc., it is also a solid wooden square material of various shapes. However, a rectangular material made of various materials is longitudinally spliced according to a standard method so that the directions of the fibers of the rectangular material are aligned. You may comprise in plate shape with the wooden laminated square material comprised so that it might provide. In addition, the square member constituting the reinforcing layer is a square member having a right-angled quadrilateral section, a square member having a triangular section, and a trapezoidal section if the plate-like reinforcing layer can be formed together with the reinforcing fiber sheet. You may comprise the square material of what forms, such as a square material.

  The square-like structural laminated material 10 having such a laminated structure includes an outer layer Aa located on the outermost side of the laminated structure in the structural laminated member 10, a reinforcing layer Ab adjacent to the outer layer Aa, and the outer layer. A plurality of square members 12 to 12 and a reinforcing fiber sheet 13 that are arranged side by side so that the reinforcing layer Ab forms a plate shape. The reinforcing fiber sheet 13 is sandwiched between the square member 12 and the outer layer Aa or the inner adjacent layer Ac and between the adjacent rectangular members 12 and 12. The reinforcing layer Ab may be provided with other reinforcing means, reinforcing means, and the like as long as the reinforcing layer Ab is bent and provided so as to extend from one end to the other end in the width direction.

  Further, the reinforcing layer Ab can be arranged in parallel and bonded via the reinforcing fiber sheet 13 to constitute the plate-like material 11 ′, and can constitute the reinforcing layer Ab in the structural laminated material 10 as the laminate. As long as there is any material, it may be configured in any manner, and it may be configured in advance into the plate-like material 11 ′, or a plate-like material constituting another layer. You may make it comprise and adhere | attach so that it may arrange in parallel between the materials 11. FIG.

  In addition, the structural laminated material 10 provides the necessary bending strength and shear strength for the structural laminated material 10 by comprehensively considering the bending strength and shear strength required for the structural laminated material 10. The required number of plate-like materials 11 having a plate thickness, a plate width, and a length are laminated and bonded.

  The reinforcing fiber sheet 13 may be made of any material as long as it provides the structural laminated material 10 to be constructed with the desired bending strength and shear strength, and is configured in any manner. For example, synthetic resin fibers such as aramid fibers, various metal fibers, glass fibers, carbon fibers, and other various fiber materials configured in an appropriate form such as cloth can be used.

  The adhesive 14 may be any adhesive as long as it can provide the desired bending strength and shear strength to the structural laminated material 10 and can securely bond the wood constituting the structural laminated material 10. Alternatively, an adhesive having a basis weight that provides the bending strength, shear strength, and the like required for the structural laminated material 10 is used.

  Further, in the structural laminated material 10, both end portions in the width direction of the reinforcing fiber sheet 13 that are bent and provided so as to extend from one end to the other end in the width direction of the reinforcing layer Ab are the reinforcing layer Ab. In the structural laminated material 10 sandwiched between the square-shaped material 12 on both sides in the width direction and the outer layer Aa, the reinforcements at both ends in the width direction of the structural laminated material 10 The outer layer Aa located at the outermost side in the laminating direction in the structural laminated material 10 in which the fiber sheet 13 portion is configured as a laminated body, and the square member 12 in the reinforcing layer Ab adjacent thereto Therefore, in the structural laminated material 10 configured as a laminated body, more reinforcing fibers are provided between the outer layer Aa and the reinforcing layer Ab that are positioned on the outermost side in the stacking direction. Is configured to over preparative 13 is interposed, which makes it possible to structural laminated wood 10 more difficult to flex.

  Furthermore, by making the reinforcing fiber sheet 13 into a carbon fiber cloth, it is possible to effectively bring compressive strength and tensile strength to the structural laminated material that is constructed, and to provide excellent heat resistance. .

  Next, an example of a manufacturing method of the typical structural laminated material 10 shown in FIG. 1 will be specifically described with reference to FIGS.

The structural laminated material 10 according to this illustrated example is a structural laminated material that forms a square material shape of five or more layers that are bonded and integrated,
The structural laminated material 10 includes an outermost layer Aa located on the outermost side, a reinforcing layer Ab adjacent to the outer layer Aa, and an inner adjacent layer Ac sandwiching the reinforcing layer Ab between the outer layer Aa. With
The reinforcing layer Ab comprises a plurality of square members 12 and reinforcing fiber sheets 13 arranged side by side,
The reinforcing fiber sheet 13 is bent and sandwiched between the rectangular material 12 and the outer layer Aa or the inner adjacent layer Ac and between the adjacent rectangular materials 12 and 12, and the width of the reinforcing layer Ab. The plate-like material 11 and the square-like material 12 constituting each layer A that is integrated with the adhesive are configured so that the directions of the fibers are substantially parallel to each other. .

The structural laminated material 10 according to the illustrated example is a square material having a required length composed of six layers, and a cross-sectional shape orthogonal to the length direction is a quadrangle with each inner angle being a right angle, and a beam or a wind resistant beam. It is comprised as a long thing which can be used as structural materials, such as.
The plate-like material 11 constituting the layer A of the structural laminated material and the square-shaped material 12 constituting the reinforcing layer Ab have their fibers oriented in the longitudinal direction of the structural laminated material 10, and The structural laminated material 10 is formed in a square shape as an integrated adhesive so that the directions of the fibers are substantially parallel. In the illustrated example, each layer A constituting the structural laminated material 10 has a length dimension that is the length dimension of the structural laminated material 10 and a width dimension that is the width dimension of the structural laminated material 10. It is configured as a six-layered thin plate that is laminated to form the square-shaped structural laminated material 10.

  In addition, the plate-like material 11 constituting each layer A has a length dimension constituting the structural laminated material 10 having a square shape, and has a rectangular cross-sectional shape orthogonal to the length direction, Even if it is made of solid material, various plate materials etc. are joined together in a variety of ways such as finger joints, and the width is peeled off so that they can be joined together in an appropriate manner in the width direction. The plate-like material may be any form of plate-like material, such as a plate-like material constituted by bonding and integrating square members in a juxtaposed state. Further, if the square member 12 constituting the reinforcing layer Ab is prepared as having the length of the structural laminated member 10, the cross-sectional shape perpendicular to the length direction is not necessarily square or rectangular. The cross-sectional shape may be composed of various square members having a triangular shape, a trapezoidal shape, or the like as long as they can be arranged side by side and formed into a plate shape with an adhesive or the like. In addition, similar to the plate-like material 11, this type of square-like material 12 may also be made of a laminated material constituted by an appropriate technique such as longitudinal joining and width peeling.

  Further, the reinforcing fiber sheet 13 is reinforced while being sandwiched and bent between the rectangular members 12 and 12 constituting the reinforcing layer Ab and between the rectangular member 12 and the outer layer Aa or the inner adjacent layer Ac. The layer Ab is prepared as a single sheet having a width dimension from one end to the other end in the width direction and a length dimension of the structural laminated material.

  A more specific example of the production process of the structural laminated material 10 according to the illustrated example will be described in detail below.

  First, two sets of outer layer plate members 11a and 11a 'constituting the outer layer Aa positioned on the outermost side in the stacking direction of the structural laminated material 10 to be stacked are prepared. This outer layer plate-like material 11a, 11a 'has a predetermined thickness dimension, width dimension, and length in which the cross-sectional shape in the direction perpendicular to the length direction is provided with the length of the length dimension of the structural laminated material. This is a plate-like body 11 constituting the thickness dimension.

  Further, the rectangular material 12 and the reinforcing fiber sheet 13 constituting the reinforcing layer Ab provided in the structural laminated material 10 are in a state in which the reinforcing fiber sheet 13 is interposed between the rectangular materials 12 and 12 arranged side by side. Thus, when each of the square members 12, 12 is bonded so as to be pressed against each other, it is configured to fit conveniently between the outer layer Aa and the inner adjacent layer Ac.

  That is, the outer layer plate material 11a, 11a 'is a width dimension in which the thickness equivalent to the thickness of the intervening reinforcing fiber sheet 13 is smaller than each dimension width obtained by dividing the width dimension of the plate material 11a, 11a' by an appropriate number A plurality of square members 12 having the same width dimension as the layered plate members 11a and 11a ′, and each of the square members 12 to 12 having a uniform height, are formed into two sets. prepare.

  Further, two sets of plate-like materials 11 forming inner adjacent layers Ac constituting two sets of reinforcing layers Ab are prepared on the structural laminated material 10 with the outer layer Aa and the reinforcing layer Ab interposed therebetween. The inner adjacent layer Ac has a length corresponding to the length of the structural laminated material 10 and has a predetermined thickness dimension, width dimension, and length dimension in which the cross-sectional shape in a direction perpendicular to the length direction is a rectangle. Is configured as a plate-like body 11.

  First, one outer layer plate member 11a constituting the first outer layer Aa 'which is one of the outermost layers Aa positioned on the outermost side of the structural laminated material 10 is set on a work table.

  Subsequently, the adhesive 14 is applied to the first outer layer plate 11a constituting the first outer layer Aa ′ set on the work table, and the reinforcing fiber sheet 13 is placed on the applied adhesive 14. The first outer layer plate 11a is positioned such that one longitudinal edge at the end of the reinforcing fiber sheet 13 in the width direction is positioned at one longitudinal edge of the plate material 11a in the width direction. The reinforcing fiber sheet 13 portion on which the first square member 12a is placed along the one longitudinal edge in the width direction is pressed with a roller or the like, so that the reinforcing fiber sheet 13 is securely attached to the first outer layer plate member 11a. Adhere to.

  Next, an adhesive 14 is applied to the surface of the reinforcing fiber sheet 13. Further, the first reinforcing layer Ab ′ is configured so as to approach one longitudinal edge of the plate member 11a toward one side in the width direction of the first plate member 11a for the outer layer. One square member 12a is placed. In the state in which the adhesive 14 is applied to the lower surface of the first horn member 12a and the surface facing the second horn member 12b arranged side by side adjacent to the first horn member 12a. The first rectangular member 12a is used for the first outer layer so that the longitudinal edge of the rectangular member 12a slightly protrudes from the side edge in the width direction of the first outer layer plate member 11a. Adhering along one longitudinal edge of the plate-like material 11a. (Refer to FIG. 3. Note that, in the illustrated example, as a typical example, the reinforcing layer Ab ′ is configured by arranging five square members in parallel.)

  Next, a second horn member 12b for the first reinforcing layer Ab ′ is prepared by applying an adhesive 14 to the peripheral surface excluding both ends, and upward from the side surface of the first horn member 12a. The reinforcing fiber sheet 13 is inserted into the lower side of the lifted reinforcing fiber sheet 13 (see FIGS. 3 and 4), and the reinforcing fiber sheet 13 is strongly tightened between the second rectangular material 12b and the side surface of the first rectangular material 12a. While pressing, one side surface of the second square member 12b is pressed against the side surface of the first square member 12a, and the reinforcing fiber sheet 13 is used to strengthen the upper surface and the other side surface of the second square member 12b. The third rectangular material 12c is arranged side by side so as to be covered with the fiber sheet 13. As in the second rectangular member 12b, the third rectangular member 12c has a side surface of the second rectangular member 12b in a state where the adhesive 14 is applied to the peripheral surface excluding both ends. The reinforcing fiber sheet 13 covering the outer side is pressed against the side surface of the second square member 12b, and the bottom surface of the reinforcing fiber sheet 13 is between the first outer layer plate member 11a. Install so that it is pinched. (See Figure 5)

  Next, in the same manner as the second rectangular member 12b, the fourth rectangular member 12d is juxtaposed with the third rectangular member 12c. The side edge of the reinforcing fiber sheet 13 guided to the upper surface of the first outer layer plate member 11a so as to cover the fourth square member 12d is the first outer layer plate member 11a. In a state where it reaches the longitudinal edge, a fifth rectangular material 12e in which the adhesive 14 is applied to the surface and the bottom surface facing the fourth rectangular material 12d is applied with the adhesive 14. The reinforcing fiber sheet 13 is disposed on the side surface of the fourth square member 14d facing the side surface and the bottom surface on the upper surface of the first outer layer plate member 11a. A fifth pentagonal member 12e is provided in the longitudinal direction of the structural laminated material 10 at the side end of the width method of the reinforcing layer Ab ′ by being bonded so as to be sandwiched. The fifth square member 12e is also configured to have a larger width dimension than the second square member 12b to the fourth square member 12d as in the first square member 12a. The excessive portions 12a "and 12e", which are configured to be larger, are configured to protrude from the longitudinal edge of the first outer layer plate member 11a.

  In this manner, the square members 12a to 12e are arranged side by side while the reinforcing fiber sheet 13 is entangled, and the inner adjacent layer constituting the first inner adjacent layer Ac ′, which is the inner adjacent layer Ac, via the adhesive 14 as appropriate. The layer plate member 11b is bonded together with the outer layer plate member 11a so as to sandwich the first reinforcing layer Ab ′. The inner adjacent layer plate 11b has the same shape and size as the outer layer plate 11a, and can conveniently sandwich the reinforcing layer Ab 'with the outer layer plate 11a. It is constituted as follows.

  As described above, the reinforcing fiber sheet 13 is folded with the first rectangular member 12a to the fifth rectangular member 12e on the first outer layer plate member 11a so as to extend from one end to the other end of the reinforcing layer Ab. The first reinforcing layer Ab ′ prepared in the above is sandwiched between the first outer layer plate member 11a and the first inner adjacent layer plate member 11b constituting the outer layer Aa ′ in the above-described manner. The square members 12a to 12e are integrally bonded to form a plate member 11 ', which is bonded to the first outer layer plate member 11a and the first inner adjacent layer plate member 11b. An effective reinforcing layer Ab is brought to the square-like structural laminated material 10.

  Although not shown in the illustrated example, the inner adjacent layer plate member 11b has the same length as the inner adjacent layer plate member 11b and the required plate width. Any number of plate-like materials having a required thickness may be bonded and laminated via an adhesive.

  Subsequently, in the structural laminated material 10 having the shape of a square according to the illustrated example, the second inner adjacent layer is formed on the first inner adjacent layer plate 11b constituting the first inner adjacent layer Ac ′. The second inner adjacent layer plate 11b ′ having the same dimensions, the same width, and the same thickness as the first inner adjacent layer plate 11b constituting Ac ″ is laminated and bonded.

  Then, the sandwiching position of the reinforcing fiber sheet 13 in the first reinforcing layer Ab ′ is reversed with respect to the second inner adjacent layer plate member 11b ′ constituting the second inner adjacent layer Ac ″. The first square member 12a ′ to the fifth square member 12e ′ constituting the second reinforcing layer Ab ″ are juxtaposed on the second inner adjacent layer plate member 11b ′.

  First, the adhesive 14 is applied to the upper surface of the second inner adjacent layer plate member 11b '. Next, the first square member 12a ′ is placed on the upper surface on one end side in the width direction of the second inner adjacent layer plate member 11b ′ along the longitudinal edge of the inner adjacent layer plate member 11b ′. Install in an adhesive state.

  The first square member 12a ′ has an adhesive 14 applied to the upper and lower surfaces and the surface on which the second square member 12b ′ is provided, and the reinforcing fiber sheet 13 is applied to the surface of the adhesive 14. The surface of the longitudinal edge on one side in the width direction is attached to the upper surface of the first square member 12a ′ and then to the side surface. Next, a necessary amount of adhesive 14 is applied to the fiber reinforced sheet 13.

  Next, a second square member 12b ′ having an adhesive 14 applied to the peripheral surface other than the end face is prepared, and the reinforcing fiber sheet 13 is made of the first square member with the second square member 12b ′. The square material 12b ′ is bonded to the second surface so as to be pressed against the side surface of the material 12a ′ and to the surface of the second inner adjacent layer plate material 11b ′. In this way, the third and fourth square members 12c ′ and 12d ′ are sequentially bonded to each other, and the reinforcing fiber sheet 13 is pulled upward to face the fourth square member 12d ′. A longitudinal direction of the structural laminated material 10 which is a side end portion in the width direction of the second reinforcing layer Ab ″ from the side with the fifth rectangular material 12e ′ having the adhesive applied to the bottom surface and the top surface. And is placed on the surface of the second inner adjacent layer plate member 11b ′ so that the fourth square member 12d ′ and the second inner adjacent layer plate member 11b are interposed through the reinforcing fiber sheet 13. Glue to '.

  The second reinforcing layer Ab ″ configured as described above is formed by connecting the second inner adjacent layer plate 11b ′ that constitutes the second inner adjacent layer Ac ″ and the first outer layer Aa ′. The second outer layer Aa ″ constituting the second outer layer Aa ″ of the structural laminated material 10 on the opposite side is sandwiched between. The second outer layer Aa ″ constituting the second outer layer Aa ″. The outer layer plate member 11a ′ has the same configuration as that of the first outer layer plate member 11a, and is bonded to the second reinforcing layer Ab ″ in a laminated state. The square members 12a 'to 12e' constituting "" are firmly bonded together with the reinforcing fiber sheet 13 to constitute an integral plate member 11 '.

  The structural laminated material 10 thus obtained is pressed for a predetermined time by using a press device or the like from the direction perpendicular to the laminated surface and the direction parallel to the laminated surface, and cured, so that each corner The sheet material 12 and the plate material 11 are firmly bonded to each other. More typically, it is set on a table so as to bring the adhesive strength to the square-shaped structural laminated material 10 laminated by the above-mentioned method, and the set laminated material is Apply pressure from both sides and top and bottom, excluding the butt end, and make each component material fully bonded. The pressure bonding is performed under an optimum condition by comprehensively judging the adhesive to be used. For example, the structural laminated material 10 such as a hot press or a cold press is used. Are bonded by a method in which the respective materials constituting the material are effectively fixed.

  With the lamination, pressurization, and adhesion, the surplus portions 12a "and 12e" of the rectangular material 12 protruding from the reinforcing layer in the longitudinal direction from the reinforcing layer in a state where the respective materials are in close contact with each other. Cut and apply the necessary surface treatment.

  Note that the bonding procedure in the manufacturing process described above is merely an example, and for the purpose of obtaining a stable bonding force, for example, corresponding to the bonding of the square members 12 constituting the reinforcing layer Ab. Again, an adhesive is applied to the surface of the corresponding reinforcing fiber sheet 13, or another side is provided on the side in contact with the reinforcing layers Ab ′ and Ab ″ in the inner adjacent layer plates 11b and 11b ′ sandwiching the reinforcing layer Ab. It is also possible to obtain a structural laminated material excellent in the desired bending strength and shear strength by applying an adhesive to each other.

"Experimental example"
(1) First outer layer plate 11a constituting the first outer layer Aa ′, second outer layer plate 11a ′ constituting the second outer layer Aa ″, first inner The first inner adjacent layer plate 11b constituting the adjacent layer Ac ′ and the second inner adjacent layer plate 11b ′ constituting the second inner adjacent layer Ac ″ are:
A European red pine with a width of 105 mm, a thickness of 30 mm, and a length of 4000 mm was used.
(2) The square member 12 constituting the first reinforcing layer Ab ′ and the second reinforcing layer Ab ″:
The six square members 12b to 12d and 12b 'to 12d' sandwiched between the intermediate portions are European red pine with a width dimension of 21 mm, a thickness dimension of 30 mm, and a length dimension of 4000 mm, and both end portions in the width direction of the reinforcing layer Ab European red pine with four square members 12a, 12e, 12a ′, 12e ′ provided so as to extend in the length direction of the structural laminated material 10 and having a width dimension of 31 mm, a thickness dimension of 30 mm, and a length dimension of 4000 mm Prepared as.
(3) The reinforcing fiber sheet 13 is:
A carbon fiber cloth of 4000 mm having a width of 225 mm with a width of 0.217 mm, which is a one-way middle-stage cloth made by “Torayca cloth” manufactured by Toray Industries, Inc. was used.
(4) For the bonded portion between the carbon fiber cloth constituting the reinforcing layer Ab, each square member 12 and the plate member 11:
A high-strength structural reinforcing epoxy resin adhesive (manufactured by Konishi Co., Ltd .: Konishi E250S) was applied at 600 g / m ² .
(5) For the adhesive part between the plate members 11b, 11b ′ for the inner adjacent layer:
A resorcinol resin-based adhesive (manufactured by Oshika Co., Ltd .: Dianol D-90) was applied at a coating amount of 300 g / m ² .
(6) The carbon fiber used as the reinforcing fiber sheet 13 is applied to the upper-strength structural epoxy resin adhesive 14 on the upper surface portion along the longitudinal edge of the first outer layer plate member 11a. A portion along one longitudinal edge of the cloth is adhered, and the first square member 12a having a width dimension of 31 mm is protruded from the longitudinal edge of the outer layer plate member 11a by approximately 10 mm. The high-strength structural reinforcing epoxy resin adhesive 14 was applied on the fiber cloth and then adhered.

  Next, a 21 mm × 30 mm × 4000 mm European red pine that forms the second rectangular material 12b in which the epoxy resin adhesive 14 is applied to the carbon fiber cloth and the peripheral surface excluding the both ends is applied. The carbon fiber cloth is inserted into the lower side of the carbon fiber cloth lifted upward from the side surface of the first square material 12a (see FIGS. 3 and 4). One side surface of the second square member 12b is pressed against the side surface of the first square member 12a so as to be strongly sandwiched between the side surfaces of the square member 12a, and the second carbon fiber cloth is used to The third rectangular material 12c is juxtaposed so as to cover the upper surface and the other side surface of the rectangular material 12b with the carbon fiber cloth. The third square member 12c is formed by applying the adhesive 14 to the peripheral surface excluding both ends, and applying the epoxy resin adhesive 14 to the carbon fiber cloth. The carbon fiber cloth covering the side surface of the second square member 12b is pressed against the side surface of the second rectangular member 12b, and the bottom surface is sandwiched between the first outer layer plate member 11a. Install. (See Figure 5)

  Next, in the same manner as the second square member 12b, a fourth square member 12d in which the epoxy resin adhesive 14 is applied to a carbon fiber cloth and an adhesive is applied to the peripheral surface excluding the end of the mouth is provided. It is arranged in parallel with the third rectangular material 12c. The side edge of the carbon fiber cloth guided to the upper surface of the first outer layer plate member 11a so as to cover the fourth square member 12d is the length of the first outer layer plate member 11a. In a state of reaching the edge, the fifth square member 12e of 31 mm × 30 mm × 4000 mm, in which the adhesive 14 is applied to the surface and the bottom surface facing the fourth square member 12d, is bonded. The first outer layer plate-like material to which the epoxy resin adhesive 14 is applied has the side surface to which the agent is applied facing the side surface of the fourth square member 12d facing the side surface. Adhering in a pressed state so as to sandwich the carbon fiber cloth on the upper surface in the longitudinal direction of the material 11a, the fifth rectangular material 12e is attached to one end of the width method of the reinforcing layer Ab, the structural laminated material Install in 10 longitudinal orientations. The fifth square member 12e is also configured to protrude approximately 10 mm from the longitudinal edge of the first outer layer plate 11a.

  As described above, the carbon fiber cloth is folded with the first rectangular member 12a to the fifth rectangular member 12e on the first outer layer plate member 11a so as to extend from one end to the other end of the reinforcing layer Ab. The first reinforcing layer Ab ′ provided includes the first outer layer plate member 11a and the first inner adjacent layer plate member constituting the first outer layer Aa ′ which is the outer layer Aa in the above-described embodiment. An effective reinforcing layer Ab sandwiched between the members 11 b is brought to the square-like structural laminated material 10.

  Next, in the structural laminated material 10 having a square shape according to the illustrated example, the first inner adjacent layer plate 11b made of European red pine of 105 mm × 30 mm × 4000 mm constituting the first inner adjacent layer Ac ′ is provided. The epoxy resin adhesive 14 is bonded to the reinforcing layer Ab ′.

  Further, the first inner adjacent layer Ac ′ constituting the first inner adjacent layer plate 11b is overlapped with the 105 mm × 30 mm × 4000 mm European Akamatsu-made first red inner pine, which constitutes the second inner adjacent layer Ac ″. The plate-like material 11b ′ for the two inner adjacent layers is bonded to the laminated state with the resorcinol resin adhesive 14.

  The second reinforcing layer Ab ″ is configured so that the sandwiched position of the carbon fiber cloth in the first reinforcing layer Ab ′ is reversed with respect to the plate member 11b ′ for the second inner adjacent layer. One square member 12a ′ to fifth square member 12e ′ are juxtaposed on the second inner adjacent layer plate member 11b ′.

  First, the adhesive 14 is applied to the upper surface of the second inner adjacent layer plate member 11b '. Next, the first square member 12a ′ is placed on the upper surface on one end side in the width direction of the second inner adjacent layer plate member 11b ′ along the longitudinal edge of the inner adjacent layer plate member 11b ′. Install in an adhesive state.

  The first square member 12a ′ has an adhesive 14 applied to the upper and lower surfaces and the surface on which the second square member 12b ′ is provided, and the width of the carbon fiber cloth is applied to the adhesive surface. The surface of the longitudinal edge on one side of the direction is attached to the upper surface of the first square member and then to the side surface. Next, a necessary amount of adhesive 14 is applied to the carbon fiber cloth.

  Next, a second square member 12b ′ having an adhesive 14 applied to a peripheral surface other than the end face is prepared, and the carbon fiber cloth to which the epoxy resin adhesive 14 is applied is used as the second square member 12b. The square member 12b 'is bonded to the second side by pressing against the side surface of the first square member 12a and pressing against the surface of the second inner adjacent layer plate member 11b'. . In this way, the third and fourth square members 12c ′ and 12d ′ are sequentially bonded to each other, and the carbon fiber cloth is pulled upward so that the side and the bottom face facing the fourth square member 12d ′. And a plate-like material surface for the second inner adjacent layer from the side along the longitudinal direction of the second reinforcing layer Ab ″. It is placed on 11b ′ and bonded to the fourth rectangular member 12d ′ and the second inner adjacent layer plate member 11b ′ via the carbon fiber cloth to which the epoxy resin adhesive 14 is applied.

  On the second reinforcing layer Ab ″, a second outer layer plate member 11a ′ constituting a second outer layer Aa ″ made of European red pine of 105 mm × 30 mm × 4000 mm is laminated, and the epoxy resin A square-like structural laminated material 10 is obtained as a laminated state integrally with the adhesive 14.

A pressure of 10 kgf / cm ^{2 is applied} to the structural laminate 10 thus obtained in the direction P-P perpendicular to the laminated surface and 5 kgf / cm ^{2 in} the direction QQ parallel to the laminated surface. After 24 hours, the surplus portions 12a ″ and 12e ″ protruding from the reinforcing layer Ab were cut to obtain the inventive specimen 100.

“Comparative Example 1”
Prepare 6 sheets of European red pine board with width dimension of 105mm, thickness dimension of 30mm and length dimension of 4000mm. Between the outermost board material 201 and the board material 201 adjacent to it, the width dimension of 105mm, length 600 g of epoxy resin adhesive for high-strength structural reinforcement (Konishi Co., Ltd .: Konishi E250S) is interposed through a one-way middle-grade cloth 202 of “Torayca cloth” made by Toray Industries, Inc. with a dimension of 4000 mm. / ^{m 2} at by coating adhered, also the resorcinol resin-based adhesive except intervening layers each plate 201 of the carbon fiber cloth 202 (manufactured Oshika Co.: Deer Knoll D-90) the application amount 300 g / after building a square bar-like structural glulam bonded by applying m ^2, and the said pressure of 10 kgf / cm ² in a vertical orientation laminated surface of each plate 201 24 It added between to obtain a comparative test piece 200 of 180mm × 105mm × 4000mm.

“Comparative Example 2”
6 sheets of European red pine board with width of 105mm, thickness of 30mm and length of 4000mm are prepared, and each board 301 is coated with the resorcinol resin adhesive (Oshika Co., Ltd .: Dianol D-90). After applying and bonding at 300 g / m ² to form a square-like structural laminated material, a pressure of 10 kgf / cm ² was applied for 24 hours in a direction perpendicular to the laminated surface of each plate material 301, and 180 mm × A comparative test body 300 of 105 mm × 4000 mm was obtained.

  A four-point bending test (width 105 mm, beam formation 180 mm, distance between fulcrums 3240 mm, distance between load points 720 mm) compliant with JAS laminated timber was applied to each specimen obtained in this manner in a direction perpendicular to the laminated surface. Table 1 was obtained by calculating the Young's modulus of each specimen from the amount of deflection.

  Next, each specimen obtained above was rotated 90 °, and the vertical and horizontal directions were changed, and a 4-point bending test (width 180 mm, beam formation 105 mm, distance between fulcrums 1890 mm, between load points) A distance of 420 mm) was applied in a direction parallel to the laminated surface, and the Young's modulus of each specimen was calculated from the amount of deflection, and Table 2 was obtained.

  The structural assembly test body 100 according to the present invention has a larger Young's modulus than the comparative test body 200 of Comparative Example 1 and the comparative test body 300 of Comparative Example 2 configured as other structural assemblies. It was recognized that the tendency to bend flexibly was shown.

Aa Outer layer Ab Reinforcement layer Ac Inner adjacent layer 10 Structural laminated material 11 Plate material 12 Square material 13 Reinforced fiber sheet

Claims (3)

It is a structural laminated material that forms a square material shape of five or more layers that are bonded together,
This structural laminated material includes an outermost layer located on the outermost side, a reinforcing layer adjacent to the outer layer, and an inner adjacent layer that sandwiches the reinforcing layer between the outer layer,
The reinforcing layer comprises a plurality of prismatic materials and reinforcing fiber sheets arranged side by side,
The reinforcing fiber sheet is bent and sandwiched between the rectangular material and the outer layer or the inner adjacent layer and between the adjacent rectangular materials, and extends from one end to the other end in the width direction of the reinforcing layer. The structural laminated material is characterized in that the plate-like material and the square-like material constituting each layer integrated with each other are made substantially parallel to each other.   A portion along the longitudinal edge of the reinforcing fiber sheet that is bent and provided so as to extend from one end to the other end in the width direction of the reinforcing layer is provided along the longitudinal edge of the structural laminated material. The structural laminated material according to claim 1, wherein the structural laminated material is sandwiched between a rectangular material constituting the reinforcing layer and the outer layer.   The structural laminated material according to claim 1 or 2, wherein the reinforcing fiber sheet is a carbon fiber cloth.

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