JP2009215783A - Combined structural material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combined structural material which has favorable appearance, enables structural materials to be easily integrated to each other, and can surely prevent a slip (slide) on a matching surface of a member. <P>SOLUTION: In this combined structural material 1, the structural materials 2 and 3 are brought into surface contact with each other along the longitudinal direction of the member via at least one surface, and integrated to each other via the contact surface. Recessed portions 4, 4 etc. are formed in such cross-sectional shapes that a deep portion side has a wide shape along a width direction at proper intervals in the longitudinal direction of the member on one 2 of the combined structural materials. Protruding portions 5, 5 etc. are formed in such cross-sectional shapes as to be aligned with the recessed portion 4 along a width direction on portions corresponding to the recessed portions 4, 4, etc. of the other structural material 3. The recessed portions 4, 4 etc. of the one structural material 2 and the protruding portions 5, 5 etc. of the other structural material 3 are joined to each other by being fitted to each other via the contact surface, so that the structural materials 2 and 3 can be integrated to each other. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a combined structural material obtained by combining structural materials having relatively small cross sections.

  2. Description of the Related Art Conventionally, a combination structural material is known in which members having relatively small cross sections are combined and mechanically integrated.

  Such a combination structural material is often found mainly on wood. For example, in Patent Document 1 below, a hole through which a long bolt penetrates is provided on the side surface of a 120 mm side material, the left and right side surfaces of the direction material are abutted with each other, and a pair of L is formed at both side corners in the diagonal direction of the direction material. A combined structural material has been proposed in which a square-shaped square member fastening metal fitting is applied and these are fastened and fixed by a single through bolt.

Further, in Patent Document 2 below, a square member combination structure material in which stacked square members are integrated by screw fastening, and each of the square members is a core-supporting member, and extends in a direction crossing the annual ring and overlapped square members. A mounting hole for a fastening screw is formed, a semicircular groove extending perpendicularly to the longitudinal direction of the square member is formed on the overlapping surface, and a cylindrical hole generated by facing the semicircular groove A square member combination structure in which a metal pin having a diameter larger than the diameter of the cylindrical hole is fitted, and the metal pin compresses the surface layer of the wood surface when the overlapping surfaces are brought into close contact with each other, and a dense layer is formed at the periphery of the cylindrical hole Materials have been proposed.
JP 2006-9370 A JP 2006-45837 A

  In the case of the combined structural material according to Patent Document 1, since the L-shaped square member fastening bracket is exposed to the outside, there is a problem that the appearance is remarkably deteriorated. Even if there is at least the strength of a laminated beam, there is a possibility that the bearing stress acting on the bolt and the gap between the vacant bolt holes will be excessive and the holes will be deformed and slip on the mating surfaces of the wood. However, there is a problem that it is difficult to be a combined structural material that integrally resists bending, and further, it takes a lot of labor and time to assemble the combined structural material.

  In the case of the square member combination structure material according to Patent Document 2 described above, it is possible to prevent misalignment between the square members by providing the metal pins on the overlapping surface, but it takes a lot of time and effort to assemble the combination structure material. The problem of needing is still not solved.

  On the other hand, the combination structural material is mainly applied to wood in which it is difficult to obtain a member having a large cross section, and in the case of a steel material, a structural material having various cross sections is often prepared in advance. No structure has been proposed. Usually, bolt and nut integration seems to be common.

  Therefore, the main problem of the present invention is that a combination structural material in which structural materials having relatively small cross sections are combined and integrated has a good appearance and can be easily integrated with each other, and slip on the mating surfaces of the members. (Slipping) is to be surely prevented.

In order to solve the above-mentioned problem, the present invention according to claim 1 is a combined structural material in which structural materials are brought into surface contact with each other along the longitudinal direction of the member on at least one surface, and the contact surfaces are integrated. ,
In the combined one side structural material, a concave portion is formed in a cross-sectional shape in which the deep side is wide along the width direction at an appropriate interval in the longitudinal direction of the member, and the other side structural material corresponds to the concave portion. For the part to be formed, a convex part is formed with a cross-sectional shape that matches the concave part along the width direction,
Provided is a combined structural material in which the concave portion of the one-side structural material and the convex portion of the other-side structural material are joined by fitting on the contact surface, and the structural materials are integrated with each other Is done.

  In the first aspect of the present invention, the one-side structural member is formed with a concave portion with a cross-sectional shape in which the deep side is wide along the width direction at an appropriate interval in the longitudinal direction of the member, and the other-side structural member And forming a convex portion with a cross-sectional shape that matches the concave portion along the width direction with respect to a portion corresponding to the concave portion, and at the contact surface, the concave portion of the one-side structural material and the other-side structural material Are connected to each other by fitting to integrate the structural materials.

  Therefore, since the appearance is simply a state where the structural materials are combined with each other, the appearance is good and the structural materials can be easily integrated in the factory or on-site. In addition, it is possible to reliably prevent slippage (slip) on the mating surface of the members by fitting the concave portion and the convex portion at the joint surface.

  As a second aspect of the present invention, there is provided the combination structural member according to the first aspect, wherein a cross-sectional shape of the concave portion is a trapezoid.

  The invention according to the second aspect defines a preferable cross-sectional shape of the concave portion. It is desirable that the cross-sectional shape of the concave portion formed in the structural material is a trapezoid because it can be surely secured.

  As a third aspect of the present invention, there is provided the combined structural material according to any one of the first and second aspects, wherein the convex portion is formed by cutting a structural material main body.

  In the invention according to the third aspect, the convex portion is formed by cutting a structural material body. When members having the same cross section are used as the structural material to be combined, it is efficient to form the convex portion by cutting the structural material main body other than the convex portion.

  According to a fourth aspect of the present invention, there is provided the combined structural material according to any one of the first to third aspects, wherein the structural material is steel or an aluminum alloy.

  The invention according to claim 4 defines a material suitable as a structural material. Although the present invention can be applied to wood, it is preferably applied to steel or aluminum alloy. In recent years, aluminum alloys with excellent recyclability and workability have begun to attract attention as materials that play a role in comprehensive reduction of environmental burden. As a result, it has been applied to detached houses and low-rise buildings.

  As the present invention according to claim 5, the combined structural material is a beam member, and the two structural materials are joined together at the upper and lower stages, and the combined structural material according to any one of claims 1 to 4 is provided. Is done.

  The invention according to claim 5 shows a preferred example in the case where the combined structural material of the present invention is used as a beam member. That is, when used as a beam member, it is desirable that two structural members are joined at the upper and lower stages to form an integrated structure. In this case, since the overlapping surface is the center in the height direction, no tensile force or compressive force due to a bending moment acts at this position. Therefore, the concave portion (cross-sectional defect) formed in the structural material does not become a structural weak point.

  As the present invention according to claim 6, the combination structural material is a pillar member, and each of the four structural materials is joined and integrated on two surfaces orthogonal to the adjacent structural material. A combined structural material as described above is provided.

  The invention described in claim 6 shows a preferred example in the case where the combined structural material of the present invention is used as a column member. That is, when used as a pillar member, it is desirable to use a structure in which four structural materials are used, and each structural material is joined and integrated on two surfaces orthogonal to adjacent structural materials. Since each structural material is integrated with a structural material adjacent to each other at two orthogonal planes, the structural material is excellent in buckling strength and has high compressive strength characteristics.

  As described above in detail, according to the present invention, it is possible to obtain a combined structural material that has a good external appearance, can easily integrate the structural materials, and can reliably prevent slippage at the mating surfaces of the members. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[First embodiment]
FIG. 1 is a perspective view showing the assembly procedure of the combination structural member 1 according to the present invention, FIG. 2 is a sectional view of the combination structural member 1, and FIG. 3 is a side view thereof.

  The combined structural material 1 is obtained by bringing the structural materials into surface contact along the longitudinal direction of the member on at least one surface and integrating the contact surfaces. Specifically, as shown in FIG. 1, on the contact surface of each structural material 2, 3, the one-side structural material 2 has a wide shape along the width direction at an appropriate interval in the longitudinal direction of the member. Are formed in a cross-sectional shape, and the other side structural member 3 is aligned with the concave portion 4 along the width direction with respect to a portion corresponding to the concave portions 4, 4. To form the convex portions 5, 5. Then, one or both of the structural members 2 and 3 are fitted from the side to the concave portions 4, 4... Of the one-side structural member 2 and the convex portions 5, 5. The structural members 2 and 3 are integrated by sliding them so that the contact surfaces are joined together.

  This will be described in more detail below.

  The upper structural member 2 shown in the figure has an upper flange 2a, a lower flange 2b, and a vertically long hollow formed by two webs 2c and 2d that connect the upper and lower flanges 2a and 2b and are spaced apart from each other. This is a hollow H-shaped cross-section member in which a portion 2e is formed. The same applies to the structural material 3 on the lower side.

  On the lower surface of the lower flange 2b of the upper structural member 2, a cross-sectional shape in which the deep side is wide along the width direction at an appropriate interval in the longitudinal direction of the member, specifically, trapezoidal concave portions 4, 4 ... is formed. Further, on the upper surface of the upper flange 3a of the lower structural member 3, the convex portion 5 has a cross-sectional shape that matches the concave portion 4 along the width direction with respect to the portion corresponding to the concave portions 4, 4,. , 5... Are formed. The convex portions 5, 5... Are formed by cutting the structural material main body because the upper structural member 2 and the lower structural member 3 are members having the same cross section.

  The concave portions 4, 4,... Of the upper structural member 2 and the convex portions 5, 5,... Of the lower structural member 3 are aligned with each other, resulting in formation between the concave portions 4, 4,. The convex portions 4a and the concave portions 5a formed between the convex portions 5, 5,... Are aligned to form joint surfaces that mesh alternately.

  In addition to the trapezoidal shape, the concave portion and the convex portions 4 and 5 may be oval, elliptical, polygonal, etc., but the trapezoid is preferable in that a large shear resistance area can be secured. desirable.

  As the structural materials 2 and 3, not only steel materials but also shapes made of aluminum alloys can be used.

  As shown in FIG. 1, the assembly is performed by moving one or both of the structural material 2 and the structural material 3 horizontally in the illustrated example from the side of the structural material 3, and lower flanges of the structural material 2. The concave portions 4, 4... Formed in 2 b and the convex portions 5, 5.

  The combination structural material 1 is assumed to be used as a beam member. When the two structural members 2 and 3 are joined together at the upper and lower stages and integrated, as shown in FIG. 4, the mating surface is the center in the height direction. Power does not work. Accordingly, the concave portions 4a formed in the structural members 2 and 3 and the concave portions 5a (cross-sectionally missing portions) between the convex portions 5 and 5 do not become structural weak points. In the figure, (+) indicates a compressed state, and (-) indicates a tensile state.

  By the way, in the said example of embodiment, although the cross-sectional shape of the said structural materials 2 and 3 was made into the hollow H-shaped cross section, it can be set as various cross-sectional shapes. Another specific example is shown in FIG. 5A is an example in which the structural materials 2 and 3 have a hollow rectangular cross section, and FIGS. 5B and 5C are examples in which the structural materials 2 and 3 have a hollow trapezoidal cross section. FIG. Fig. 5 (E) is an example in which the structural members 2 and 3 are integrated with the bolts and nuts by back-to-back bonding with bolts and nuts. Fig. 5 (F) is an example in which the grooved steel is back-to-back and integrated with the connecting member 6 to form an H shape in cross section. Fig. 5 (G) is an example in which the upper and lower flange widths are made to have different H shapes. It is.

  In any case, the structural members 2 and 3 superposed on the upper and lower tiers, on the mating surface, the concave portions 4, 4... Formed on the structural members 2 and 3, and the convex portions 5, 5. The structural members 2 and 3 are integrated by fitting.

[Second embodiment]
Next, a case where the combined structural material 1 according to the present invention is applied as a column member will be described.

  In the example shown in FIG. 6, two structural members 7 and 8 having a hollow rectangular cross section are joined to form a combined column structure member 6. Also in this case, concave portions 4, 4... Are formed on one surface of the one-side structural member 8 in a cross-sectional shape in which the deep side is wide along the width direction at an appropriate interval in the longitudinal direction of the member. On one surface of the material 7, convex portions 5, 5... Are formed in a cross-sectional shape that matches the concave portions 4 along the width direction with respect to portions corresponding to the concave portions 4, 4. Then, one or both of the structural members 7 and 8 are fitted from the side to the concave portions 4, 4... Of the one side structural member 8 and the convex portions 5, 5. The structural members 7 and 8 are integrated by sliding them so that the contact surfaces are joined together.

  Furthermore, the example shown by FIG. 8 joins the four structural materials 12-15, and is set as the combination pillar structural material 11. As shown in FIG. The cross-sectional shape of each of the structural members 12 to 15 is desirably a shape that is in contact with two surfaces orthogonal to the adjacent structural member, for example, a rectangular shape in the illustrated example. In each of the structural members 12 to 15, concave portions 4, 4... Or convex portions 5, 5.

  First, as shown in FIG. 9, the structural material 12 and the structural material 13 are joined and integrated by fitting the concave portions 4, 4... And the convex portions 5, 5. At this time, as shown in FIG. 10, continuous concave portions 4, 4... Are formed on the composite surface A of the integrated structural members 12, 13. Further, the structural material 14 and the structural material 15 are joined and integrated by fitting the concave portions 4, 4... And the convex portions 5, 5. At this time, as shown in FIG. 10, continuous convex portions 5, 5... Are formed on the composite surface B of the integrated structural members 14, 15. Finally, the integrated structural members 12, 13 and the integrated structural members 14, 15 are joined and integrated by fitting the concave portions 4, 4,... And the convex portions 5, 5,. To do.

  Next, the example shown in FIG. 11 is an example in which a combination column structure material 16 having a large circular cross section is configured using four structural materials 17 to 20 having a 1/4 hollow arc cross section. The procedure for integration is the same as that of the combined column structure material 11 shown in FIG.

It is a perspective view which shows the assembly point of the combination structural material 1 which concerns on this invention. 1 is a cross-sectional view of a combined structural material 1. It is the side view. FIG. 3 is a bending moment state diagram of the combined structural member 1. (A)-(G) is a figure which shows the example of a cross-sectional shape of the structural materials 2 and 3 in the case of using a beam member, respectively. It is a top view which shows the example of the combination pillar structure material 6 using the two structural materials 7 and 8. FIG. It is a perspective view which shows the joining point. It is a top view which shows the example of the combination pillar structure material 11 using the four structural materials 12-15. It is a perspective view which shows the junction point (the 1). It is a perspective view which shows the joining procedure (the 2). It is a top view which shows the example of the combination pillar structure material 16 using the four structural materials 17-20 based on the other example of a structural material cross section.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Combination structural material, 2, 3, 7, 8, 12-15, 17-20 ... Structural material, 4 ... Concave part, 4a ... Convex part, 5 ... Convex part, 5a ... Concave part

Claims (6)

The structural materials are in contact with each other along the longitudinal direction of the member on at least one surface, and the combined structural material is designed to be integrated on the contact surface,
In the combined one side structural material, a concave portion is formed in a cross-sectional shape in which the deep side is wide along the width direction at an appropriate interval in the longitudinal direction of the member, and the other side structural material corresponds to the concave portion. For the part to be formed, a convex part is formed with a cross-sectional shape that matches the concave part along the width direction,
A combined structural material, wherein the concave portion of the one-side structural member and the convex portion of the second-side structural member are joined by fitting on the contact surface, and the structural members are integrated.   The combined structure material according to claim 1, wherein a cross-sectional shape of the concave portion is a trapezoid.   The combined structural material according to claim 1, wherein the convex portion is formed by cutting a structural material main body.   The combined structural material according to claim 1, wherein the structural material is steel or an aluminum alloy.   The combined structural material according to any one of claims 1 to 4, wherein the combined structural material is a beam member, and the two structural materials are joined together in an upper and lower stage.   The combined structural material according to any one of claims 1 to 4, wherein the combined structural material is a pillar member, and the four structural materials are joined and integrated on two surfaces orthogonal to adjacent structural materials.

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