JPH066505U - Rigid joint structure of structural laminated wood - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The workability is improved, and the column-to-beam rigid joint is possible with joint fittings that are not exposed on the surface of the joint. [Structure] A plurality of pulling plates are formed on a column pulling plate 4 and a beam pulling plate 5 which have a predetermined angle and have joints such that the seams of the respective layers are alternated when stacked. In the structure of the joint portion of the structural laminated wood constituted by joining and laminating and adhering, the joining metal fittings 7 are provided at predetermined portions of the column pulling plate 4 and the beam pulling plate 5 straddling the joint. Are formed in the same plane to form a mounting recess, and the pulling plate for the column and the pulling plate for the beam are joined by the joining metal fitting to form the pillar-beam member 3, and the joining metal fitting. The column-beam member 3 is adhered with the layer 7 being interposed between them.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rigid joint structure of columns and beams of structural laminated wood, and more particularly to a rigid joint structure of structural laminated wood capable of forming a rigid frame by bonding with metal fittings.

[0002]

[Prior art]

 This kind of structural laminated wood is made up of five lumber 13 (including a board prepared by adhering in the width direction and a board prepared by adhering with finger joints in the length direction) for the required yield strength. The above is laminated. It is mainly used as a load bearing member for structures. In order to perform the conventional rigid joint between columns and beams by such a structural laminated member, as shown in FIG. 5, the column laminated member 14 and the beam laminated member 15 are joined by the joining metal fittings 17. The construction method is used. In this construction method, a column member 14 and a beam member 15 are joined together and sandwiched by joint fittings 17 from both sides, and bolts or pins are passed through the laminated members 14 and 15 to be fixed to form a rigid joint.

[0003]

[Problems to be solved by the device]

 However, it was difficult to manufacture the joining metal fitting 17 used in this joining method. Moreover, it is difficult and time-consuming to fix the rigid joint 12 with a large number of pins or bolts at the construction site. Further, even if the wood patterns of the laminated lumbers 14 and 15 are to be displayed in the room to make use of the unique texture and texture in the interior, the metal fittings 17 of the rigid joint 12 are exposed, There was the inconvenience that the appearance on the interior was significantly impaired. Furthermore, there is a problem that the exposed metal fitting 17 is easily softened by the heat of a fire, and in such a case, the ability to maintain the structure is lost.

In view of this, the present invention proposes a rigid-bonding structure of structural laminated members that improves the workability and that enables rigid bonding between columns and beams by means of a fitting that is not exposed on the surface of the joint. is there.

[0005]

[Means for Solving the Problems]

 In the present invention, a means for solving the above-mentioned problems is to use a plurality of sawing boards with a predetermined angle and a pillar sawing board having joints such that the seams of the layers are alternated when stacked. In the structure of the joint part of the structural laminated wood formed by bonding and laminating and adhering to the beam pulling board, the pillar pulling board straddling the joint and the predetermined part of the beam pulling board Is a column-beam member in which the joining metal fitting forms a mounting recess capable of joining the two pulling boards in the same plane, and the pulling board for the column and the pulling board for the beam are joined by the joining fitting. And the column-beam members are bonded to each other by interposing the bonding metal fittings between the laminated layers to form a rigid bonded structure of structural laminated wood. The structural laminated wood referred to here includes structural laminated wood with a large cross section, so-called large-section structural laminated wood.

[0006]

[Action]

 According to the above structure, the joining metal fitting is interposed between the laminated pulling boards and the pulling board, and the pulling board is joined to the joining fitting by adhesion so that the column-beam can be rigidly joined to form the frame structure. Can be configured. In addition, since the metal fittings cannot be seen from the outside, the application of structural laminated wood is expanded. Furthermore, since the metal fittings are not exposed on the surface, the fire resistance of the wood itself is utilized to improve the fire resistance performance of the rigid joint.

[0007]

【Example】

 Next, one embodiment of the present invention will be described by taking the column-beam joint 2 of the structural laminated member 1 of the mountain-shaped rigid frame structure shown in FIG. 1 (b) as an example. FIG. 1 shows an exploded perspective view and an exploded sectional view of a column-beam joint 2 having a mountain-shaped rigid frame structure. The structural laminated member 1 is formed by joining and stacking five pillar-beam members 3 joined by joining fittings 7. The stacked column-beam member 3 is formed of a column pulling plate 4 and a beam pulling plate 5 each having a predetermined width and length. The pillar pulling plate 4 and the beam pulling plate 5 are formed by being cut obliquely so as to form a predetermined angle by joining. For example, in the first layer 3a illustrated in FIG. 2, the pillar drawing plate 4 having the diagonally cut connection 4a and the side surface 5b of the beam drawing plate 5 formed by cutting are butted. Have been combined. In addition, the pulling board here includes a board prepared by adhering in the width direction and a board prepared by adhering with a finger joint, a scarf joint, etc. in the length direction.

In the second-layer pillar-beam member 3b, the side surface 4b of the pillar drawing plate 4 cut at the same angle and the diagonally cut connection 5a of the beam drawing plate 5 are joined. Is configured to be. That is, the seams 6 of the column-beam members 3 to be laminated are alternately formed in parallel with each other in the beam 5 direction and the column 4 direction by changing the way of abutting the joints. The grooves are angled and alternate. In this way, the structural laminated material 1 is formed so that the seams 6 do not overlap each other during lamination. As a result, the seams are dispersed in the stacking direction, and the non-uniformity of the joint portion 2 in the structural laminated material 1 is averaged.

Next, the joint fitting 7 has a shape as shown in FIG. The joining metal fitting 7 is a single substantially rectangular plate 8 made of metal, and has a large number of elongated substantially triangular studs 9 formed in a cut-and-raised shape by punches over the entire surface of the plate 8. I have. The tack 9 is cut and raised at a right angle with respect to the plate 8, and the tip thereof is driven into the pulling plate 3 and is slightly bent so as to be hard to come out. The length of the tack 9 corresponds to about half the thickness of the pulling plate of the pillar-beam member 3.

As shown in FIG. 1 (a), the tack 9 of the joining metal fitting 7 formed in this way has inner surfaces of the first layer 3 a and the second layer 3 b and the fourth layer 3 d and the fifth layer 3 e. It is driven so as to cover the seam 6 on the inner side of the. First, the joining surfaces 4a and 5b of the column pulling plate 4 and the beam pulling plate 5 of the first layer 3a are bonded by a suitable adhesive. Further, in a part of the column pulling plate 4 and the beam pulling plate 5 straddling the joint 6 on the inner surface side of the first layer 3a, a mounting recess thinned by the thickness of the plate 8 of the joining metal fitting 7 is attached. Has been formed. This is so that when the joining metal fitting 7 is attached, the surfaces of the column pulling plate 4 and the beam pulling plate 5 joined to the surface of the joining metal fitting 7 coincide with each other. The tack 9 of the joint metal fitting 7 is driven into the mounting recess, that is, so as to cover the joint 6, and the pillar pulling plate 4 and the beam pulling plate 5 are adhered and firmly joined together to form the pillar-beam member 3 Are formed.

In the second layer 3b, as in the case of the first layer 3a, a mounting recess is formed in the joint 6 on the inner surface side, and the tack 9 of the joint metal fitting 7 is driven into this recess to be joined. Further, in the fourth layer 3d and the fifth layer 3e, the joining metal fittings 7 are similarly driven so as to cover the joints 6 on the inner surface side. As shown in FIG. 4, the tacks 9 of the joining metal fitting 7 are driven into the joints 6 on the inner surface side of the first layer 3a, the second layer 3b, the fourth layer 3d, and the fifth layer 3e, respectively, and about half of each layer. To reach the thickness of, and firmly form a column-beam joint. In addition, the column pulling plate 4 and the beam pulling plate 5 of the third layer 3c are bonded to each other only by an adhesive.

The plurality of chevron-shaped column-beam members 3 thus formed are laminated and applied with a predetermined pressure after a suitable adhesive is applied to the surfaces to be joined. As a result, the plate 8 of the joint metal fitting 7 fixed to the joint 6 of each pillar-beam member 3 is bonded and integrated with the second layer 3b, the third layer 3c, and the fourth layer 3d, as shown in FIG. A structural laminated timber 1 having the illustrated mountain frame structure is formed. At this time, the joint metal fitting 7 is interposed between the pillar-beam member 3 and cannot be confirmed from the appearance. Since the joining metal fitting 7 is on the same plane as the pillar-beam member 3, it does not hinder the lamination and bonding of the pillar-beam members 3.

With the structural laminated wood 1 having such a rigid joint structure 2, it is possible to form a mountain-shaped or right-angled rigid frame structure using a wooden frame using an inexpensive straight straight board. it can. Furthermore, since the joining metal fitting 7 can be interposed between the pillar-beam member 3 and the rigid joint portion 2 can be formed simultaneously with the lamination of the pillar-beam member 3, it is possible to carry out integrated processing in the factory.

In this embodiment, the joining metal fitting 7 illustrated in FIG. 3 is used, but the joining metal fitting 7 is not limited to this, and has a shape in which a stud 9 is erected from a plate 8. Just do it. Further, the number of laminated pulling plates may be 5 or more, and it is sufficient that the joining metal fitting 7 can obtain a predetermined yield strength.

[0015]

[Effect of device]

 As described above, according to the present invention, a pillar-beam member is formed by a joining tool interposed between laminated pulling plates, and a structural laminated member having a rigid joint portion is manufactured at the same time as the adhesive laminating step. You can Therefore, it is possible to improve the workability by removing the time and effort of joining with a bolt or the like at the construction site. In addition, since the metal fittings are not exposed on the surface of the structural laminated wood, this framework can be effectively used for the interior without damaging the exterior appearance. In addition, the fire resistance of the rigid joint during a fire can be improved.

[Brief description of drawings]

1 is an exploded perspective view and a perspective view of a structural laminated member.

FIG. 2 is a perspective view showing a state in which the columns and the beams are butted against each other.

FIG. 3 is a perspective view of a joining fitting.

FIG. 4 is an enlarged view of an exploded cross section of structural laminated wood.

FIG. 5 is a perspective view showing a rigid joint portion of a conventional structural laminated member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Structural laminated wood 2 ... Joint part 3 ... Pillar-beam material 4 ... Pillar pulling board 5 ... Beam pulling board 6 ... Seam 7 ... Joining metal fitting 9 ... Tack

Claims (1)

[Scope of utility model registration request] 1. A plurality of pulling boards are formed into a column pulling board and a beam pulling board which have a predetermined angle and have joints such that the seams of the respective layers alternate when laminated. In the structure of the joint portion of the structural laminated wood that is formed by joining and laminating and adhering, the joining metal fittings are provided at the predetermined portions of the column pulling board and the beam pulling board that straddle the joint, and the both pulling boards are flush with each other. A mounting recess that can be joined in the inside is formed, and the pillar-beam and the beam-drawing board are joined by the joining metal fitting to form a pillar-beam member, and the interlayer for stacking the joining metal fitting is formed. Rigid joint structure of structural laminated wood with a structure in which a pillar-beam member is adhered by being interposed in the structure.