JP2021063337A - Reinforcement structure of wooden member and reinforcement method of wooden member - Google Patents

Abstract

To provide a reinforcement structure of a wooden member capable of efficiently reinforcing the wooden member with a reinforcing member, and a reinforcement method of a wooden member.SOLUTION: A reinforcement structure 10 of a wooden member includes: a wooden beam 12 as a wooden member; and an upper steel plate 18 and a lower steel plate 20 as reinforcing members integrated with wooden beam 12, which are provided at an upper face 12A and a lower face 12B of the wooden beam 12. The reinforcement method of a wooden member includes the steps of: forming an upper face groove 14 and a lower face groove 16 extending along the axis direction of the wooden beam 12 in the upper face 12A and the lower face 12B of the wooden beam 12; and inserting the upper steel plate 18 and the lower steel plate 20 into the upper groove 14 and the lower face groove 16 to integrate with the wooden beam 12.SELECTED DRAWING: Figure 1

Description

The present invention relates to a reinforcing structure for a wooden member and a method for reinforcing the wooden member.

The wood member may be reinforced by integrating the reinforcing member with the wood member. For example, Patent Document 1 discloses a wood-based member having a reinforcing member formed by laminating a plurality of laminars and flat plates and inserted into a groove formed on a joint surface between the flat plates. Further, Patent Document 2 discloses an laminated wood having a fiber wire (reinforcing member) formed by laminating a plurality of laminas and inserted into a groove formed on a joint surface between the laminas.

Japanese Unexamined Patent Publication No. 2016-118069 Japanese Unexamined Patent Publication No. 2013-28028

For example, in a wooden member such as a wooden beam, the tensile force or compressive force generated in the wooden member by bending the wooden member on the outer peripheral surface such as the upper surface or the lower surface is generally maximized. However, in the wood-based member shown in Patent Document 1 and the laminated wood shown in Patent Document 2, a reinforcing member is provided on the joint surface of the flat plate or the lamina. That is, since the reinforcing member is not provided on the outer peripheral surfaces such as the upper surface and the lower surface of the wood-based member and the laminated wood, the wood-based member cannot be efficiently reinforced by the reinforcing member.

In view of the above facts, an object of the present invention is to provide a reinforcing structure of a wooden member and a method of reinforcing the wooden member, which can efficiently reinforce the wooden member by the reinforcing member.

The reinforcing structure of the wood member according to claim 1 is provided on at least one of the wood member, the first surface of the wood member, and the second surface facing the first surface, and is integrated with the wood member. It has a reinforcing member and a reinforcing member.

According to the above configuration, by integrating the reinforcing members provided on at least one of the first surface and the second surface of the wood member with the wood member, the outer peripheral surface (first surface or the second surface) of the wood member can be formed. Reinforcing members can be easily arranged. As a result, the outer peripheral surface of the wood member having the maximum tensile force or compressive force generated by the bending of the wood member can be efficiently reinforced by the reinforcing member.

The reinforcing structure of the wood member according to claim 2 is the reinforcing structure of the wood member according to claim 1, and the wood member is formed on at least one of the first surface and the second surface of the wood member. A groove extending along the material axis direction of the above is formed, and the reinforcing member is inserted into the groove.

According to the above configuration, a groove extending along the material axis direction of the wood member is formed on at least one of the first surface and the second surface of the wood member, and the reinforcing member is inserted into the groove to form the reinforcing member. It can be easily and surely integrated with the wood member.

The reinforcing structure of the wood member according to claim 3 is the reinforcing structure of the wood member according to claim 1 or 2, and the reinforcing member is a steel plate.

According to the above configuration, by inserting the steel plate as the reinforcing member into the groove, the outer peripheral surface of the wood member can be easily and surely reinforced by the steel plate.

The method for reinforcing a wood member according to claim 4 forms a groove extending along the material axis direction of the wood member on at least one of a first surface of the wood member and a second surface facing the first surface. Then, a reinforcing member is inserted into the groove and integrated with the wood member.

According to the above configuration, a groove extending along the material axis direction of the wood member is formed on at least one of the first surface and the second surface of the wood member, and a reinforcing member is inserted into this groove to integrate with the wood member. By doing so, the reinforcing member can be easily and surely arranged on the outer peripheral surface (first surface or the second surface) of the wooden member. As a result, the outer peripheral surface of the wood member having the maximum tensile force or compressive force generated by the bending of the wood member can be efficiently reinforced by the reinforcing member.

According to the reinforcing structure of the wood member and the method of reinforcing the wood member according to the present invention, the wood member can be efficiently reinforced by the reinforcing member.

It is a perspective view which shows the reinforcement structure of the wood member which concerns on 1st Embodiment. It is a front view which shows the example of reinforcement with respect to the long-term bending load of the reinforcement structure of the wood member which concerns on 1st Embodiment. It is a front view which shows the example of reinforcement with respect to the load at the time of an earthquake of the reinforcement structure of the wood member which concerns on 1st Embodiment. It is a perspective view which shows the reinforcement structure of the wood member which concerns on 2nd Embodiment. (A) is a perspective view showing a reinforcing structure of a wooden member according to a first modification, and (B) is a perspective view showing a reinforcing structure of a wooden member according to a second modification. (A) is a perspective view showing a reinforcing member of a reinforcing structure of a wooden member according to a third modification, and (B) is a cross-sectional view showing a state after the reinforcing member shown in (A) is inserted into a groove. .. (A) is a cross-sectional view showing a reinforcing structure of a wooden member according to a 4th modification, and (B) is a sectional view showing a reinforcing structure of a wooden member according to a 5th modification.

Hereinafter, the reinforcing structure of the wood member and the method of reinforcing the wood member according to the first and second embodiments of the present invention and the first to fifth modifications will be described in order with reference to FIGS. 1 to 7. In the drawing, the arrow X indicates the horizontal direction or the material axis direction of the wood member, and the arrow Y indicates the vertical direction or the height direction of the wood member.

<First Embodiment>
First, the reinforcing structure and the reinforcing method of the wood member according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 3.

(Reinforcement structure)
As shown in FIG. 1, the reinforcing structure 10 of the wood member of the present embodiment has a wood beam 12 as an example of the wood member. The wooden beam 12 has, for example, a rectangular cross section, and is made of laminated wood in which a plurality of wood laminar materials (not shown) are laminated and bonded to each other.

On the upper surface 12A (first surface) of the wooden beam 12, an upper surface groove 14 extending along the material axis direction of the wooden beam 12 is formed in the central portion in the width direction. Similarly, on the lower surface 12B (second surface) facing the upper surface 12A of the wooden beam 12, that is, the surface opposite to the upper surface 12A, the lower surface groove 16 extending along the material axis direction of the wooden beam 12 has a width. It is formed in the center of the direction. In the present embodiment, the upper surface groove 14 and the lower surface groove 16 have a rectangular cross section, and the depth of the lower surface groove 16 is deeper than the depth of the upper surface groove 14.

Further, an upper steel plate 18 and a lower steel plate 20 as examples of reinforcing members are inserted into the upper surface groove 14 and the lower surface groove 16 of the wooden beam 12, respectively. The upper steel plate 18 has a rectangular cross section, extends in a rod shape along the upper surface groove 14, and is one size smaller than the size of the upper surface groove 14. Similarly, the lower steel plate 20 has a rectangular cross section, extends in a rod shape along the lower surface groove 16, and is one size smaller than the size of the lower surface groove 16. The upper steel plate 18 and the lower steel plate 20 do not cover the upper surface groove 14 and the lower surface groove 16, and are inserted into the upper surface groove 14 and the lower surface groove 16, respectively.

In the present embodiment, the width of the lower steel plate 20 is substantially the same as the width of the upper steel plate 18, and the height L2 of the lower steel plate 20 is higher than the height L1 of the upper steel plate 18. Further, in a state where the upper steel plate 18 and the lower steel plate 20 are inserted into the upper surface groove 14 and the lower surface groove 16, respectively, the upper surface of the upper steel plate 18 and the lower surface of the lower steel plate 20 are the upper surface 12A and the lower surface 12B of the wooden beam 12. Each is exposed.

Further, the adhesive 22 is filled between the upper steel plate 18 and the upper surface groove 14 and between the lower steel plate 20 and the lower surface groove 16, respectively. The adhesive 22 is made of, for example, an epoxy resin or a urethane resin, and the upper steel plate 18 and the wood beam 12 and the lower steel plate 20 and the wood beam 12 are integrated by the adhesive 22, respectively.

The adhesive 22 preferably has fire resistance. By using a material having fire resistance as the adhesive 22, the fire resistance of the outer peripheral surfaces (upper surface 12A and lower surface 12B) of the wooden beam 12 can be enhanced.

In the form shown in FIG. 1, the upper steel plate 18 (upper surface groove 14) and the lower steel plate 20 (lower surface groove 16) are provided over the entire length of the wooden beam 12 in the material axial direction. However, the upper steel plate 18 (upper surface groove 14) and the lower steel plate 20 (lower surface groove 16) do not necessarily have to be provided over the entire length of the wooden beam 12 in the material axial direction, and are appropriately provided at places where reinforcement is required. It suffices if it is provided.

For example, when the wooden beam 12 is reinforced against a long-term bending load, as shown in FIG. 2, the upper surface groove 14 and the upper steel plate 18 are provided at both ends of the wooden beam 12 in the material axial direction, that is, at the joint with the column 24. It is preferable to provide the lower surface groove 16 and the lower steel plate 20 at the central portion of the wooden beam 12 in the material axial direction. As a result, the upper steel plate 18 and the lower side of both ends in the material axial direction where the long-term bending load is concentrated on the upper surface 12A of the wooden beam 12 and the central part in the material axial direction where the long-term bending load is concentrated on the lower surface 12B of the wooden beam 12. It can be effectively reinforced by the steel plate 20.

On the other hand, when the wooden beam 12 is reinforced against the load at the time of an earthquake, as shown in FIG. 3, the upper surface groove 14 and the upper steel plate 18 and the lower surface groove 16 and the lower steel plate 20 are connected to the wooden beam 12. It is preferable to provide them at both ends in the material axial direction. As a result, the joint portion of the wooden beam 12 with the column 24 where the load is concentrated at the time of an earthquake can be effectively reinforced by the upper steel plate 18 and the lower steel plate 20.

By providing the upper steel plate 18 and the lower steel plate 20 at both the reinforcing portion shown in FIG. 2 and the reinforcing portion shown in FIG. 3, the wooden beam 12 is reinforced against both the long-term bending load and the load at the time of an earthquake. It is also possible.

(Reinforcement method)
Next, a procedure for reinforcing the upper surface 12A and the lower surface 12B of the wooden beam 12 with the upper steel plate 18 and the lower steel plate 20 will be described.

First, a wooden beam 12 made of laminated wood is produced by laminating and adhering a plurality of laminar materials (not shown) to each other. Next, the wooden beam 12 is cut using a cutting tool or the like (not shown), and the upper surface groove 14 and the lower surface groove 16 extending along the material axis direction are formed on the upper surface 12A and the lower surface 12B of the wooden beam 12, respectively.

After that, the upper surface groove 14 and the lower surface groove 16 are filled with the adhesive 22, the upper steel plate 18 is inserted into the upper surface groove 14, and the lower steel plate 20 is inserted into the lower surface groove 16. Then, by curing the adhesive 22, the upper steel plate 18 and the lower steel plate 20 are integrated with the wooden beam 12, respectively.

By the above procedure, the upper surface 12A and the lower surface 12B of the wooden beam 12 can be reinforced by the upper steel plate 18 and the lower steel plate 20. The above procedure is an example, and the procedure may be different or may include other procedures.

For example, in the above procedure, after laminating laminar materials to produce a wooden beam 12 having a rectangular cross section, the wooden beam 12 is cut, and an upper surface groove 14 and a lower surface groove 16 are formed on the upper surface 12A and the lower surface 12B of the wooden beam 12, respectively. It was forming. However, the wooden beam 12 may be produced while forming the upper surface groove 14 and the lower surface groove 16 by laminating the laminar materials with a gap (groove) between adjacent laminar materials.

(Action effect)
According to the present embodiment, the upper steel plate 18 and the lower steel plate 20 provided on the upper surface 12A and the lower surface 12B of the wooden beam 12 are integrated with the wooden beam 12, respectively. As a result, the upper surface 12A and the lower surface 12B of the wooden beam 12 having the maximum tensile force or compressive force generated by the bending of the wooden beam 12 can be efficiently reinforced by the upper steel plate 18 and the lower steel plate 20. it can.

In particular, according to the present embodiment, the upper surface 12A and the lower surface 12B of the wooden beam 12 are formed with an upper surface groove 14 and a lower surface groove 16 extending along the material axis direction of the wooden beam 12, respectively, and the upper surface groove 14 is formed with an upper steel plate. At the same time that 18 is inserted, the lower steel plate 20 is inserted into the lower surface groove 16.

By inserting the upper steel plate 18 and the lower steel plate 20 into the upper surface groove 14 and the lower surface groove 16, respectively, the upper steel plate 18 and the lower steel plate 20 are exposed on the upper surface 12A and the lower surface 12B of the wooden beam 12. It can be easily positioned in the state. As a result, the upper steel plate 18 and the lower steel plate 20 can be reliably positioned on the outer peripheral surfaces (upper surface 12A and lower surface 12B) of the wooden beam 12, and the wooden beam 12 can be efficiently reinforced.

Further, according to the present embodiment, since the adhesive 22 is filled between the upper surface groove 14 and the upper steel plate 18 and between the lower surface groove 16 and the lower steel plate 20, the upper steel plate 18 and the lower side are respectively filled. The steel plate 20 and the wooden beam 12 can be easily and surely integrated. Further, by integrating the upper steel plate 18, the lower steel plate 20, and the wood beam 12 with the adhesive 22, the shearing force generated in the wood beam 12 can be borne by the upper steel plate 18 and the lower steel plate 20. ..

Further, according to the present embodiment, steel plates (upper steel plate 18 and lower steel plate 20) are used as reinforcing members. Therefore, the reinforcing member is easy to handle, and by inserting the upper steel plate 18 and the lower steel plate 20 into the upper surface groove 14 and the lower surface groove 16, the upper surface 12A and the lower surface 12B of the wooden beam 12 are easily and surely reinforced. be able to.

Further, in general, the wooden beam 12 is weaker in tensile force than the compressive force, and the compressive force mainly acts on the upper surface 12A of the wooden beam 12 and the tensile force mainly acts on the lower surface 12B of the wooden beam 12. .. Here, according to the present embodiment, the height L2 of the lower steel plate 20 provided on the lower surface 12B of the wooden beam 12 on which the tensile force acts is provided on the upper surface 12A of the wooden beam 12 on which the compressive force acts. The height of the upper steel plate 18 is higher than the height L1.

Therefore, the moment of inertia of area of the lower steel plate 20 can be made larger than the moment of inertia of area of the upper steel plate 18, and the lower surface 12B, which requires more reinforcement in the wooden beam 12, is efficiently provided by the lower steel plate 20. Can be reinforced.

<Second Embodiment>
Next, the reinforcing structure and the reinforcing method of the wood member according to the second embodiment of the present invention will be described with reference to FIG. The description of the same configuration as that of the first embodiment will be omitted.

(Reinforcement structure)
As shown in FIG. 4, the reinforcing structure 30 of the wood member of the present embodiment has a wood beam 32 as an example of the wood member. Similar to the wood beam 12 of the first embodiment, the wood beam 32 has, for example, a rectangular cross section, and is made of laminated wood in which a plurality of laminar materials (not shown) are laminated and bonded to each other.

Further, the upper surface 32A and the lower surface 32B of the wooden beam 32 are formed with an upper surface groove 34 and a lower surface groove 36 extending along the material axis direction of the wooden beam 32, respectively, and the upper surface groove 34 and the lower surface groove 36 are reinforced. An upper steel plate 38 and a lower steel plate 40 as examples of the members are inserted, respectively.

Here, in the first embodiment, the size of the upper steel plate 18 is one size smaller than the size of the upper surface groove 14, whereas in the present embodiment, the height of the upper steel plate 38 is the height of the upper surface groove 34. It is higher than (depth).

Specifically, the lower end portion of the upper steel plate 38 is inserted into the upper surface groove 34, and is integrated with the wooden beam 32 by the adhesive 42 filled in the upper surface groove 34. On the other hand, the upper end portion of the upper steel plate 38 projects upward in the vertical direction from the upper surface 32A of the wooden beam 32, and a plurality of studs 44 extending in the horizontal direction are projected on both side surfaces of the upper end portion.

Further, in the present embodiment, the concrete slab 46 is placed on the upper surface 32A of the wooden beam 32, and the upper end portion of the upper steel plate 38 protruding from the upper surface 32A of the wooden beam 32, and a plurality of protrusions on the upper end portion. The studs 44 are embedded in the concrete slabs 46, respectively.

As in the first embodiment, the size of the lower steel plate 40 is one size smaller than the size of the lower surface groove 36, and the lower steel plate 40 is integrated with the wooden beam 32 by the adhesive 42 filled in the lower surface groove 36. ing.

(Reinforcement method)
When the upper surface 32A and the lower surface 32B of the wooden beam 32 are reinforced by the upper steel plate 38 and the lower steel plate 40, first, as in the first embodiment, a plurality of laminar materials (not shown) are laminated and bonded to each other. , A wooden beam 32 made of laminated wood is prepared. Further, a plurality of studs 44 are pre-welded to the upper end portion of the upper steel plate 38.

Then, the wooden beam 32 is cut using a cutting tool or the like (not shown), and the upper surface groove 34 and the lower surface groove 36 are formed on the upper surface 32A and the lower surface 32B of the wooden beam 32, respectively. Next, the lower end portion of the upper steel plate 38 is inserted into the upper surface groove 34 and integrated with the wooden beam 32 by the adhesive 42. Similarly, the lower steel plate 40 is inserted into the lower surface groove 36 and integrated with the wooden beam 32 by the adhesive 42.

After that, a formwork (not shown) is installed above the upper surface 32A of the wooden beam 32, and concrete is poured into the formwork to embed a plurality of studs 44 projecting from the upper end portion and the upper end portion of the upper steel plate 38. Construct the concrete slab 46.

By the above procedure, the upper surface 32A and the lower surface 32B of the wooden beam 32 can be reinforced by the upper steel plate 38 and the lower steel plate 40. The above procedure is an example, and the procedure may be different or may include other procedures.

(Action effect)
In the present embodiment, as in the first embodiment, the upper steel plate 38 and the lower steel plate 40 are inserted into the upper surface groove 34 and the lower surface groove 36 provided on the upper surface 32A and the lower surface 32B of the wooden beam 32, and the upper steel plate 38 and the lower steel plate 40 are inserted by the adhesive 42. The upper steel plate 38, the lower steel plate 40, and the wooden beam 32 are integrated. As a result, the upper surface 32A and the lower surface 32B of the wooden beam 32, which maximizes the tensile force or compressive force generated in the wooden beam 32 by bending the wooden beam 32, can be efficiently reinforced by the upper steel plate 38 and the lower steel plate 40. it can.

Further, according to the present embodiment, since the upper end portion of the upper steel plate 38 protrudes from the upper surface 32A of the wood beam 32, the upper end portion of the upper steel plate 38 is embedded in the concrete slab 46 to form the wood beam 32 and the concrete slab. The unity of 46 can be enhanced. Further, since a plurality of studs 44 are projected from the upper end of the upper steel plate 38 embedded in the concrete slab 46, the studs 44 can further enhance the integrity of the wooden beam 32 and the concrete slab 46.

<Other Embodiments>
Although the first and second embodiments of the present invention have been described above, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. Further, the configurations of the first and second embodiments can be combined as appropriate.

For example, in the first embodiment, the upper steel plate 18 and the wooden beam 12 are integrated by the adhesive 22. However, as shown in FIG. 5A as a first modification, the upper steel plate 18 and the wooden beam 12 may be integrated by the mortar 48. In this case, it is preferable to form convex cotters 50 and 52 on the surface of the upper steel plate 18 and the inner wall surface of the upper surface groove 14, respectively.

According to the first modification, the mortar 48 is filled between the surface of the upper steel plate 18 on which the cotter 50 is formed and the inner wall surface of the upper surface groove 14 on which the cotter 52 is formed. As a result, the adhesive force of the mortar 48 can be increased by the cotters 50 and 52, and the pull-out resistance of the upper steel plate 18 to the upper surface groove 14 can be increased. Although not shown, the cotters 50 and 52 can be applied to the lower steel plate 20 and the lower surface groove 16 as well as the upper steel plate 18 and the upper surface groove 14.

Further, in the first embodiment, the upper surface groove 14 and the upper steel plate 18 have a rectangular cross section, but the shapes of the upper surface groove 14 and the upper steel plate 18 are not limited to the embodiment, and for example, FIG. Like the upper surface groove 54 and the upper steel plate 58 shown as a modification, the cross section may be T-shaped or the like.

By inserting the upper steel plate 58 having a T-shaped cross section into the upper surface groove 54 having a T-shaped cross section, the joint area between the inner wall surface of the upper surface groove 54 and the surface of the upper steel plate 58 can be increased, and the upper steel plate 58 and the upper steel plate 58 can be joined. The integrity of the wooden beam 12 can be further enhanced. The shape of the lower surface groove 56 and the lower steel plate 60 can also be a T-shaped cross section or the like, similarly to the upper surface groove 54 and the upper steel plate 58.

Further, in the first embodiment, as shown in FIGS. 6 (A) and 6 (B) as a third modification, a plurality of communication holes 62 may be formed in the upper steel plate 18. As shown in FIG. 6A, the plurality of communication holes 62 are provided at intervals along the extending direction of the upper steel plate 18, and penetrate the upper steel plate 18 in the width direction, respectively.

By forming a plurality of communication holes 62 in the upper steel plate 18 as in the third modification, the adhesive 22 was filled between the upper surface groove 14 and the upper steel plate 18 as shown in FIG. 6 (B). At that time, the adhesive 22 enters the communication holes 62 of the upper steel plate 18, respectively.

As a result, the adhesive strength between the upper steel plate 18 and the wooden beam 12 can be increased, and the stress transmission efficiency between the upper steel plate 18 and the wooden beam 12 via the adhesive 22 can be increased. Although not shown, the communication hole 62 can be applied to the lower steel plate 20 shown in FIG. 1 in the same manner as the upper steel plate 18.

Further, in the first embodiment, the upper surface groove 14 and the lower surface groove 16 for inserting the upper steel plate 18 and the lower steel plate 20 are formed on the upper surface 12A and the lower surface 12B of the wooden beam 12, respectively. The groove may not be formed in the. For example, as shown in FIG. 7A as a fourth modification, the upper steel plate 78 and the lower steel plate 80 are directly joined to the upper surface 72A and the lower surface 72B of the wooden beam 72 in which the groove is not formed by a screw 74 or the like. It can also be configured.

Further, in the first embodiment, the height L2 of the lower steel plate 20 is made higher than the height L1 of the upper steel plate 18, so that the moment of inertia of area of the lower steel plate 20 is higher than the moment of inertia of area of the upper steel plate 18. Was also large. However, for example, as shown in FIG. 7B as a fifth modification, the moment of inertia of area of the lower steel plate 90 is increased by making the width H2 of the lower steel plate 90 wider than the width H1 of the upper steel plate 88. It may be configured to be larger than the moment of inertia of area of the upper steel plate 88.

In the first embodiment, the height (width) of the lower steel plate 20 does not necessarily have to be larger than the height (width) of the upper steel plate 18. Therefore, the height (width) of the lower steel plate 20 and the height (width) of the upper steel plate 18 may be the same size. For example, when the upper surface 12A of the wooden beam 12 is to be reinforced more than the lower surface 12B, The height (width) of the upper steel plate 18 may be larger than the height (width) of the lower steel plate 20.

Further, in the first and second embodiments, the upper steel plates 18, 38, the lower steel plates 20, 40 and the wooden beam 12 are provided by the adhesives 22 and 42 filled in the upper surface grooves 14, 34 and the lower surface grooves 16, 36. It was integrated with 32. However, instead of the adhesives 22 and 42, or in addition to the adhesives 22 and 42, the upper steel plates 18 and 38 and the lower steel plates 20 and 40 and the wooden beams 12 and 32 may be integrated by the drift pin 100. ..

Specifically, for example, as shown in FIG. 7B, the upper steel plate 88 and the lower steel plate 90 are formed with pin holes 92 and 94 that penetrate the upper steel plate 88 and the lower steel plate 90 in the width direction, respectively. ing. Further, the wooden beam 12 is formed with pin holes 96 and 98 that penetrate the wooden beam 12 in the width direction via the upper surface groove 14 and the lower surface groove 16, respectively. A plurality of pin holes 92, 94, 96, and 98 are formed at intervals along the material axis direction (extending direction) of the upper steel plate 88, the lower steel plate 90, and the wooden beam 12.

By inserting and fixing the drift pin 100 into the pin hole 92 of the upper steel plate 88 and the pin hole 96 of the wooden beam 12, and the pin hole 94 of the lower steel plate 90 and the pin hole 98 of the wooden beam 12, the drift pin 100 is used. The upper steel plate 88, the lower steel plate 90, and the wooden beam 12 can be integrated.

Further, the upper steel plates 18 and 38 and the lower steel plates 20 and 40 are press-fitted into the upper surface grooves 14 and 34 and the lower surface grooves 16 and 36 without using a filler such as adhesives 22 and 42 to form the upper steel plates 18 and 38. The lower steel plates 20 and 40 and the wooden beams 12 and 32 may be integrated.

Further, in the first and second embodiments, the wooden beams 12 and 32 are made of laminated wood. However, the wooden beam is not limited to laminated lumber, and CLT (Cross Laminated Timber) in which a plurality of laminar materials are laminated and bonded so that the fiber directions are orthogonal to each other, and LVL (Laminated Veneer Lumber) in which the fiber directions of the laminar materials are aligned and bonded. ), It may be composed of a single layer of solid wood or the like.

Further, in the first and second embodiments, the reinforcing member is composed of steel plates (upper steel plates 18, 38 and lower steel plates 20, 40), but the reinforcing member is not limited to the steel plate, but is composed of reinforcing bars or the like. You may. Further, the reinforcing member may be made of a material having a higher rigidity than a wood member such as carbon fiber, aramid fiber, or plastic.

Further, the upper reinforcing member inserted into the upper surface grooves 14 and 34 and the lower reinforcing member inserted into the lower surface grooves 16 and 36 may be made of different materials. For example, by making the material constituting the lower reinforcing member harder than the material constituting the upper reinforcing member, the geometrical moment of inertia of the lower reinforcing member is set from the geometrical moment of inertia of the upper reinforcing member. Can also be increased.

Further, in the first and second embodiments, the upper steel plates 18 and 38 and the lower steel plates 20 and 40 as reinforcing members are provided on both the upper surfaces 12A and 32A and the lower surfaces 12B and 32B of the wooden beams 12 and 32. However, the reinforcing members do not necessarily have to be provided on both sides of the wooden beams 12 and 32, and may be provided on only one of the surfaces.

Further, in the second embodiment, a plurality of studs 44 are projected from the upper end portion of the upper steel plate 38, but for example, by passing a reinforcing bar (not shown) arranged on the concrete slab 46 through the upper steel plate 38, the wood is made of wood. The structure may be configured to enhance the integrity of the beam 32 and the concrete slab 46. Further, the stud 44 does not have to be projected on both side surfaces of the upper end portion of the upper steel plate 38, and may be projected only on one side surface of the upper steel plate 38.

Further, in the first and second embodiments, the wooden members are the wooden beams 12 and 32, but the present invention can be applied to various wooden members such as wooden slabs and wooden columns other than the wooden beams. Is. Further, the present invention can be applied to a wooden member (wooden beam) constituting the building at the time of new construction of the building, and can also be applied to the wooden member (wooden beam) constituting the building at the time of renovation of the building. It is possible.

10, 30 Reinforced structures 12, 32, 72 Wooden beams (an example of wooden members)
12A, 32A, 72A upper surface (an example of the first surface)
12B, 32B, 72B lower surface (an example of the second surface)
14, 34, 54 Top groove (example of groove)
16, 36, 56 Bottom groove (example of groove)
18, 38, 58, 78, 88 Upper steel plate (example of reinforcing member)
20, 40, 60, 80, 90 Lower steel plate (example of reinforcing member)

Claims (4)

Wood members and
A reinforcing member provided on at least one of a first surface of the wood member and a second surface facing the first surface and integrated with the wood member.
Reinforcing structure of wood member with. A groove extending along the material axis direction of the wood member is formed on at least one of the first surface and the second surface of the wood member.
The reinforcing member is inserted into the groove.
The reinforcing structure of the wood member according to claim 1. The reinforcing structure for a wood member according to claim 1 or 2, wherein the reinforcing member is a steel plate. A groove extending along the material axis direction of the wood member is formed on at least one of the first surface of the wood member and the second surface facing the first surface.
A reinforcing member is inserted into the groove and integrated with the wood member.
How to reinforce wood members.

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