JPH0711733A - Horizontal member structure - Google Patents

Abstract

PURPOSE:To make a span between columns large and to facilitate construction by constituting a web on which a horizontal member is orthogonally jointed by LVL as well as constituting an upper chord member and a lower chord member by LVL. CONSTITUTION:An upper chord member 2 and a lower chord member 3 are constituted of LVL laminated plywood. Thereafter, by forming a hollow inside part 5 by way of adherently jointing a pair of webs 4 on both sides of them, a horizontal member 1 of a box beam shape is constituted. At this time, at least the web 4a jointed orthogonally on another horizontal member 10 of a pair of the webs 4a, 4b is constituted of LVL. Consequently, it is possible to set a span between columns long, to extensively improve plant productivity and to improve airtight heat insulating performance by way of restraining occurrence of deformation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a horizontal member such as a girder, a girder, a beam, etc., which is horizontally spanned by a frame in a building such as a house.

[0002]

2. Description of the Related Art Square timbers have been generally used in the conventional frame construction method as a horizontal member for constructing a frame of a building such as a house, but in recent years, as precutting and panel construction methods have been rationalized. Beams made from general lumber or beams made of structural laminated wood have been used.

[0003]

In the above-mentioned square timber, in terms of strength, the span between the pillars arranged between the square timbers must be shortened, resulting in complicated construction and an increase in the number of pillars. In addition, in the case of the above-mentioned beam, in addition to the problem that the weight is heavy and the burden required for construction increases, when mounting with a wall panel or girder orthogonally to the wall panel in the panel construction method, a magsa or I am dissatisfied with the fact that the height of the wall panel cannot be kept constant because I receive beams and girders as beams. In addition, in general lumber products, long products cannot be taken and it is difficult to dry up to the core, so it is not possible to increase the span between columns,
Deformation causes deterioration of airtightness / insulation performance.

The present invention has been made in view of the above circumstances, and it is possible to increase the span between columns and facilitate the construction, improve the airtightness / insulation performance, and further, in the panel construction method, a wall panel. It is an object of the present invention to provide a horizontal member structure having a structure in which the height of the bridge can be made constant.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and is a transverse member obtained by adhesively joining an upper chord member and a lower chord member with a pair of webs arranged on both sides of these members. In the structure, the upper chord member and the lower chord member are made of LVL, and at least the other cross member of the pair of webs is orthogonally joined to the web by LVL.

[0006]

EFFECTS OF THE INVENTION According to the present invention, it is light in weight, has sufficient strength, has a significantly reduced water content by being dried in a veneer state, and is unlikely to be deformed. Since the LVL having the above is used as a component, the span between columns can be increased and the number of columns can be reduced, and the burden required for construction can be reduced. Further, if the height is made constant, the height of the wall panel in the panel construction method can be made constant. Further, the reduction of the water content suppresses the occurrence of deformation and improves the airtightness / insulation performance. Further, by selecting the LVL-made web according to the other horizontal members to be joined, the cost increase can be suppressed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a basic structure of a horizontal cross member 1 according to the present invention. The horizontal cross member 1 is a pair of webs in which an upper chord member 2 and a lower chord member 3 formed of LVL are arranged on both sides of the upper chord member 2 and the lower chord member 3. It is configured so as to be a so-called box beam in which a hollow interior 5 is formed by adhesive bonding at 4. Now, in this embodiment, three types a to c having different configurations of the web 4 are used.
2a to 2c of the horizontal members 1a to 1c of FIG.

That is, in the type a horizontal member 1a (FIG. 2a), both webs 4 are made of LVL webs 4a, and the type b horizontal member 1b (FIG. 2b) is used. One of the webs 4 is a web 4a made of LVL, and the other web 4 is a web 4b made of structural plywood. In the horizontal member 1c of type c (FIG. 2C), both webs 4 are composed of webs 4b made of structural plywood. In this case, the thickness of the LVL-made web 4a is made of plywood.
It is set thicker than b.

The LVL will be described below.
VL (Laminated Veneer Lumber) is a plate material or shaft material in which a plurality of thin plates that have been thinly cut are laminated and bonded, mainly in a state where their fiber directions are parallel to each other. They are lightweight and have sufficient strength. The moisture content is greatly reduced by deformation in the state and it is difficult to deform, long products can be obtained by vertically laying veneers, the thickness can be arbitrarily set by increasing or decreasing veneers, etc.
It has various features.

As shown in FIG. 3A, the type-a horizontal member 1a is used at a location where another horizontal member (beam or the like) 10 intersects with a cross at right angles. 10 is joined to the LVL web 4a. Also, type b horizontal material 1b
Is used at a position where another horizontal member 10 intersects at right angles to the T-shape as shown in FIG. 3B. The other horizontal member is LV.
It is joined to the L-made web 4a. In this case, the conventional joining metal piece 6 is used for joining with the other horizontal member 10. Further, the horizontal member 1c of type c is used at a position where another horizontal member 10 does not intersect, as shown in FIG. That is, in use, types a to c are selected according to the location of the horizontal member so that the other horizontal member 10 is bonded to the LVL-made web 4a. For joining the horizontal members, a conventional metal member such as the metal member 6 is sufficient, and the other horizontal members 10 may be LVL horizontal members.

4, 5 and 6 show the horizontal member 1
An example of using (1a, 1b or 1c) is shown. Fig. 4 shows a part of the skeleton of a house constructed by the conventional method.
0 is a base, 21 is a pillar, and 22 is a stud. In this case, since the horizontal members cross at right angles to the T-shape, the outer side (front side in FIG. 6) is directed toward the inner side with the LVL-made web 3a as the type b horizontal member 1b. The horizontal members 10 are joined together. Instead of the other horizontal members 10, the horizontal member 1 of this embodiment may be joined to the horizontal member 1b. In that case, depending on the joining state of the other horizontal members to the horizontal member 1, type a
Select ~ c.

5 and 6 show a wall portion of a house by the panel construction method, 30 is a base, 31 is a floor, and 32 is
Is a wall panel incorporated between the base 30 and the horizontal member 1 (1a, 1b or 1c), and 33 is a pillar. Floor 31
Is composed of a material 31a, a floor plywood 31b, and a floor material 31c, and the wall panel 32 has face materials 32b on both sides of the core material 32a.
Are fixed to each other. The horizontal member 1 in the illustrated example is of type a, but depending on other horizontal members to be joined, type a
Select ~ c.

According to the horizontal member 1 (1a to 1c) of the present embodiment described above, the horizontal member 1 (1a to 1c) is lightweight and has sufficient strength, and the water content is greatly reduced by the drying in the single plate state, which makes it difficult to deform. Since the LVL having the feature that a long product can be obtained by vertically cascading is, it has the following effects.

First, since it is lightweight and has sufficient strength, the span between columns can be set to be long, so that the number of columns can be reduced and the burden required for construction can be reduced.
Also, if the height is made constant, it is not necessary to put in a magsa or to receive a girder or a girder as a beam when mating with a wall panel by the panel construction method shown in FIG. 5 and FIG. Therefore, the productivity of the factory is greatly improved. Furthermore, the reduction of water content suppresses the occurrence of deformation, resulting in airtightness and
The heat insulation performance is improved. Further, as described above, it is possible to suppress the cost increase by selecting the types a to c according to the other horizontal members to be joined.

Further, in this embodiment, if the hollow interior 5 formed in the horizontal member 1 is filled with a heat insulating material, there is an advantage that a heat insulating defect can be compensated.

[0016]

As described above, according to the cross member structure of the present invention, the upper chord member and the lower chord member are made of LVL, and at least another cross member of the pair of webs is joined orthogonally. The web is made of LVL, which is lightweight, has sufficient strength, has a significantly reduced water content when dried in a single plate state, and is unlikely to be deformed. L that has the advantage that long products can be obtained
Since VL is used as a constituent element, the following effects are obtained. The span between columns can be set long, and therefore the number of columns can be reduced, and the burden required for construction can be reduced. If the height is constant, there is no need to put in a magsa or a girder or girder as a beam when mating with a wall panel by the panel construction method, and the height of the wall panel can be made constant, which greatly increases factory productivity. improves. By reducing the water content, deformation is suppressed and airtightness / insulation performance is improved. By selecting the LVL web according to the other horizontal members to be joined, the cost increase can be suppressed.

[Brief description of drawings]

FIG. 1 is a perspective view showing a basic configuration of a horizontal member according to an embodiment of the present invention.

2A, 2B and 2C are cross-sectional views of horizontal members of types a, b and c, respectively.

3A, 3B, 3C and 3D are perspective views showing examples of use of horizontal members of types a, b, c, respectively.

FIG. 4 is a cross-sectional view showing an example in which the horizontal member of the embodiment is applied to a frame of a conventional house.

FIG. 5 is a front view showing an example in which the horizontal member of one embodiment is applied to a wall portion of a house by a panel construction method.

6 is a sectional view taken along the line PP of FIG.

[Explanation of symbols]

1 (1a, 1b, 1c) ... Horizontal member, 2 ... Upper chord member, 3 ... Lower chord member, 4 (4a, 4b) ... Web, 10 ... Other horizontal member.

Claims (1)

[Claims] 1. A horizontal bridge material structure in which an upper chord member and a lower chord member are bonded and joined by a pair of webs arranged on both sides thereof, wherein the upper chord member and the lower chord member are made of LVL, and Among the webs, the horizontal member structure is characterized in that at least another horizontal member is orthogonally joined to the web and is made of LVL.