JPH1061101A - Structural laminated wood in building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve fixing strength and fireproof performance of a joining part by forming a structural laminated wood by laminating thin plates formed by sticking woods together and at least a single metallic plate, boring a hole in this laminated wood, and joining it by a bolt or the like. SOLUTION: A structural laminated wood 1 is formed by laminating thin plates (wood laminas) 2 bonded together by thinly cutting (slicing) a log and iron plates 3. Besides an interposing position and the number of sheets or the like of the iron plates 3 can be freely selected according to required strength or the like of the wood 1, fire resistance can be improved by sticking it to an outside surface. An installing hole is bored in this wood 1, and it is fixed to a skeleton frame or the like by using a fightener 4 such as a bolt and a nail. Shear strength in a shearing surface A can be sufficiently obtained. Therefore, allowable strength can be significantly enhanced as the laminated wood.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glued structural lumber for a building, and more particularly to a technique for improving the strength of the glued laminated lumber.

[0002]

2. Description of the Related Art As a result of years of intensive studies, the applicant of the present invention has found that it is simpler than the conventional simplest joining method, for example, a method of variously combining iron plates and bolts and nuts, and furthermore, it has an old wooden structure in strength. We have developed a joint device for building components that is superior to the notch system. This is Tokuhei 6-579
No. 77 discloses this.

That is, this joint device is used as a building member.
A joint member for a building member comprising a standardized joint member suitable for forming a framework of a building by combining standardized pre-cut members and forming a frame of the building. It is possible to construct a framework suitable for a building or the like in which both features of the wall construction method are mixed. By the way, when constructing such a building, a structural laminated wood L. V. L (laminate veneer lumber) is used.

[0004] This structural glued laminated lumber is formed, for example, by drying a thin plate (wood lamina) formed by thinly cutting (slicing) a log of wood and laminating a plurality of thin plates with an adhesive. Has high allowable strength and high water resistance.

[0005]

However, in such conventional structural glued laminated lumber, the shear strength of bolts and the like as fasteners for fastening the structural glued lumber cannot be sufficiently obtained, and the fixing strength is low. There is a problem in that the strength cannot be sufficiently obtained, so that the allowable strength cannot be sufficiently obtained as a structural laminated wood.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional problem, and it is an object of the present invention to improve the strength, the shearing force for fasteners such as bolts, the fire prevention performance, and the like in a structural laminated wood. Aim.

[0007]

In order to achieve the above object, the invention according to claim 1 is formed by laminating and laminating a plurality of thin plates made of wood and at least one thin plate made of metal. It is characterized by the following. The invention according to claim 2 is characterized in that the thin plates made of metal are bonded to each other at positions between the thin plates made of adjacently laminated wood.

The invention according to claim 3 is characterized in that the thin plate made of metal is bonded to an outer surface of a thin plate made of wood located on the outermost or innermost side of the structural laminated wood.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an embodiment of a structural glued laminated wood in a building of the present invention. That is, in FIGS. 1 and 2, the structural laminated wood 1 is obtained by laminating and laminating a thin iron plate 3 as at least one thin plate made of metal together with a plurality of thin plates made of wood (hereinafter, wood lamina) 2. It is formed.

In this case, the structural laminated wood 1 is formed by laminating and bonding two iron plates 3 together with eight wood laminas 2. In this case, two laminated wood lamina 2 adjacent to each other on the inner side of the structural glued laminated wood 1
And the two wood laminas 2 are laminated with an iron plate 3 interposed therebetween. According to the structural laminated wood 1 having such a configuration, since the iron plates 3 are laminated and bonded together with the plurality of wood laminas 2, the structural laminated wood 1 is used as a fastener as shown in FIG. In the case of fastening using the bolts 4 of FIG. 4, as shown in the conceptual diagram of FIG. 4, the shearing surface A increases, the penetration of the bolts 4 into the wood decreases, and the shear strength of the bolts 4 can be sufficiently obtained. Glued lumber 1
Since the fixing strength can be sufficiently obtained, the allowable strength as the structural glued laminate 1 can be greatly increased.

FIG. 5 shows the structure of another embodiment of the structural glued laminated timber 1 in the building according to the present invention. That is,
In the embodiment of FIGS. 5A and 5B, the iron plate 3 is
It is also stuck to the outer surface of the wood lamina 2 located on the outermost or innermost side of the structural laminated wood 1.

In the structural glued laminated lumber 1 of this embodiment, the bonding strength of the bolt is sufficiently obtained by bonding the iron plate 3 as in the embodiment of FIGS. When the iron plate 3 is located on the outer surface side of the structural glued laminated lumber 1, the fire resistance and the fire resistance of the structural glued laminated lumber 1 are to be improved, in addition to the effect that the allowable strength of the structural laminated lumber 1 can be greatly increased. There is an effect that can be.

In the embodiment of FIG. 5C, the iron plate 3 is
FIG. 5 shows a laminate obtained by alternately laminating with wood lamina 2.
In the embodiment of (D), the iron plate 3 is bonded to the outer surfaces of the wood lamina 2 located on the outermost and innermost sides of the structural glued laminated lumber 1, respectively. The matching position is the required structural glue 1
Can be freely selected according to the strength of the steel.

[0014]

As described above, according to the first to third aspects of the present invention, the shear strength of the nail for driving the structural laminated wood to the frame formed by the building member can be sufficiently obtained. As a result, sufficient fixing strength to the frame portion can be obtained, so that the allowable strength as a structural glued laminated material can be greatly increased.

[0015] In particular, in the invention according to the third aspect, when bonded to the outer surface of a thin plate made of wood located on the outermost side of the structural glued laminated lumber, the fire prevention and fire resistance performance of the structural glued laminated lumber are improved. There is an effect that it can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a structural glued laminated lumber according to the present invention.

FIG. 2 is an end view showing a fore edge of the structural glued laminated lumber;

FIG. 3 is a perspective view showing the relationship between the structural glued laminated lumber and the bolts for fastening the same.

FIG. 4 is a conceptual diagram showing the effect of the above structural glued laminated timber.

FIG. 5 is an end view showing a fore edge of a structural glued laminated lumber according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structural laminated wood 2 Wood lamina 3 Iron plate 4 Bolt

Claims (3)

[Claims] 1. A structural laminated wood for a building, which is formed by laminating and bonding at least one thin plate made of metal together with a plurality of thin plates made of wood. 2. The structural laminated wood for a building according to claim 1, wherein the thin plates made of metal are interposed and bonded at positions between thin plates made of wood laminated adjacent to each other. 3. The thin metal sheet is bonded to the outer surface of a thin wooden sheet located on the outermost or innermost side of the structural glued laminated lumber.
Structural glulam for the described building.