JP6712480B2 - Hybrid structural material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hybrid structural material used for constructing a skeleton of a building structure.

A hybrid structural material in which a central steel material made of a steel frame and a wooden member are combined is used for the body of various building structures.
For example, Patent Document 1 discloses a structure in which wooden members are fitted in the recesses on the left and right sides of a central steel member having an H-shaped cross section, and the wooden member and the central steel member are integrally joined by bolts that penetrate a web of the central steel member. It is disclosed.

In the hybrid structural material as disclosed in Patent Document 1, a bolt that joins the central steel material and the wooden member penetrates the web. That is, the bolt extends in a direction orthogonal to the long axis direction of the hybrid structural material. In such a configuration, when a load or stress in the long axis direction acts on the hybrid structural material, a force in the shearing direction acts on the bolt. Therefore, the longitudinal load and stress that the wooden member can bear are limited by the shear strength of the bolt.
Therefore, in such a hybrid structural material, the load and the stress acting on the hybrid structural material in the long axis direction are mainly borne by the central steel material.

JP, 2004-36283, A

An object of the present invention is to provide a hybrid structural material having a higher strength by increasing the degree of load and stress on the wooden member.

The present invention adopts the following means in order to solve the above problems.
That is, the hybrid structural material of the present invention is a hybrid structural material that constitutes the frame of the structure, and is formed of a central steel material made of steel frame, a wood member provided along the central steel material, and the central steel material. And a pressure receiving portion that abuts the end face in the long axis direction of the wood member that is orthogonal to the long axis direction of the central steel material, extends in the long axis direction, one end is fixed to the wood member, and the other end is It is characterized by comprising a joining member fixed to the pressure receiving portion and joining the central steel material and the wood member.

With such a configuration, the central steel material and the wooden member are joined by the joining member extending in the long axis direction of the central steel material with the end surface of the wooden member abutting against the pressure receiving portion of the central steel material. As a result, it is possible to transfer the load and stress acting on the hybrid structural material in the long axis direction between the central steel material and the wooden member. Therefore, in addition to the central steel material, it becomes possible to bear the load and stress in the long axis direction not only on the wood member but also on the wood member. As a result, the wooden member sufficiently functions as a strength and stress bearing element of the hybrid structural material. Further, in the wood member, since the fiber direction of the wood matches the long axis direction, stress can be efficiently transmitted between the wood and the pressure receiving portion of the central steel material.

In one aspect of the present invention, in the hybrid structural material of the present invention, the wood member is a wood member side pressure receiving surface orthogonal to the long axis direction, and the wood member to the wood member side pressure receiving surface from the end surface of the wood member. An insertion hole communicating along the long axis direction is provided, and the joining member is arranged at both ends of the bolt shaft and the bolt shaft inserted through the insertion hole, and the wooden member side pressure receiving surface or the A fixing member that abuts the pressure receiving portion, and a nut that is screwed to both ends of the bolt shaft and that presses the fixing member against the pressure receiving surface on the wooden member side or the pressure receiving portion are further provided.

According to such a configuration, it is possible to reliably transfer the load and stress in the long axis direction between the central steel material and the wooden member via the joining member.

In one aspect of the present invention, in the hybrid structural material of the present invention, the wooden member-side pressure receiving surface is provided in a recessed portion that is recessed with respect to the outer surface of the wooden member.

With this configuration, the fixing member and the nut mounted on the end of the bolt shaft can be housed in the recess. Therefore, it is possible to prevent the fixing member and the nut from protruding outward from the wooden member, and improve the appearance.

In one aspect of the present invention, the hybrid structural material of the present invention is provided with a plurality of the wood members connected to each other along the long axis direction of the central steel material, and the wood materials facing each other in the long axis direction. The members each include a connection pressure receiving surface orthogonal to the long axis direction, and a connection insertion hole that communicates from the end portion of the wooden member along the long axis direction to the connection pressure receiving surface, The wood members facing each other in the longitudinal direction are connecting bolt shafts inserted through the connecting insertion holes of one of the wooden members and the connecting insertion holes of the other wooden member, and the connecting members. The bolt shafts are respectively attached to both ends of the bolt shaft, and are connected to the connecting pressure receiving surface of one of the wooden members or the connecting fixing member fixed to the connecting pressure receiving surface of the other wooden member.

According to such a configuration, in the case where a plurality of wood members are provided in the long axis direction with respect to one central steel material, the wood members facing each other in the long axis direction are connected to each other with the connecting bolt shaft. The connection can be made by connecting fixing members attached to both ends of the connecting bolt shaft. In this way, even when a plurality of wood members are connected to one central steel material in the long axis direction, the plurality of wood members and the central steel material are provided in the long axis direction. It is possible to reliably transmit the load and stress of the.

In one aspect of the present invention, the hybrid structural material of the present invention, at least one of the one wood member and the other wood member opposite to each other in the long axis direction, is continuous with the connecting insertion hole. An accommodating hole capable of accommodating the entire length of the connecting bolt shaft is formed.

According to such a configuration, when connecting the one wooden member and the other wooden member, first, the entire length of the connecting bolt shaft is inserted into the connecting insertion hole and the receiving hole to be stored. deep. Then, after the one wood member and the other wood member are abutted against each other, the accommodated connecting bolt shaft is projected toward the other wood member facing, and the other wood member is inserted into the connecting insertion hole. Insert it. After that, by attaching the fixing members for connection to both ends of the connecting bolt shaft, respectively, one wooden member and the other wooden member can be connected.
Thereby, the wooden members facing each other in the long axis direction can be easily and efficiently connected to each other.

In one aspect of the present invention, the hybrid structural material of the present invention further includes a gap adjusting member that is inserted between the one wooden member and the other wooden member that face each other in the long axis direction.

According to such a configuration, when connecting the one wood member and the other wood member along the central steel material, there is a gap between the one wood member and the other wood member. But the work is easy. One wood member and the other wood member can be arranged without a gap by inserting the gap adjusting member after making one wood member and the other wood member face each other along the central steel material. .. This makes it possible to reliably transfer the load and the stress between the one wooden member and the other wooden member.

According to the present invention, it is possible to provide a hybrid structural material having higher strength by increasing the degree of load and stress on the wooden member.

It is a side view which shows a part of building structure comprised using the hybrid structure material. It is sectional drawing orthogonal to the major axis direction in the hybrid structure material of FIG. It is a figure which shows the cross-section structure orthogonal to the major axis direction of a hybrid structure material, and is a YY arrow cross-section figure in FIG. It is a side view which shows the structure of the joining part of the central steel material and the wood member in a hybrid structure material. In a hybrid structure material, it is a side view showing the joined structure of wood members when connecting a plurality of wood members to a central steel material in the direction of the long axis. It is a figure which shows the flow of work at the time of connecting wooden members in the joining structure shown in FIG. It is a figure which shows the flow of the operation|work when connecting wooden members in the joining structure shown in FIG. 5, and is a figure which shows the state following FIG.

Embodiments for carrying out the hybrid structural material according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a side view showing a part of a building structure constructed by using a hybrid structural material. FIG. 2 shows a cross-sectional view of the hybrid structural material of FIG. 1 orthogonal to the long axis direction. It is a figure which shows the cross-section structure orthogonal to the major axis direction of a hybrid structure material, and the YY arrow cross-section figure in FIG. 1 is shown in FIG. FIG. 4 is a side view showing the configuration of the joint between the central steel material and the wood member in the hybrid structural material.

As shown in FIGS. 1 and 2, the frame 10a of the building structure 10 configured by using the hybrid structural members 20A and 20B is bonded to, for example, the lower chord member 12 of the beam 11 and the upper surface of the lower chord member 12. Lattice material 13A, 13B.

The lower chord member 12 is configured by connecting a plurality of hybrid structural members 20A extending in the horizontal direction in the major axis direction CL.

The lattice members 13A and 13B are joined to a bracket 14 provided on the upper surface of the lower chord member 12 via a joining plate 15. The lattice members 13A and 13B extend obliquely upward from the bracket 14 in the vertical plane and are joined to an upper chord member (not shown). The lattice members 13A and 13B each include a hybrid structural material 20B.

As shown in FIGS. 1 to 3, the hybrid structural material 20A that constitutes the lower chord member 12 includes a central steel material 21A, a wood member 30A, and a joining member 40.

The central steel material 21A is made of steel material, and has a web 22A located in the vertical plane and a flange 23A integrally joined to the upper end of the web 22A and located in the horizontal plane, and formed in a T-shaped cross section. Has been done. A rib plate 24A and a pressure receiving plate (pressure receiving portion) 25A are integrally formed on the central steel material 21A.

The rib plate 24A is provided at an intermediate portion in the vertical direction of the web 22A so as to extend outward in the horizontal direction from both side surfaces 22s, 22s of the web 22A. As shown in FIG. 1, the rib plate 24A is continuously formed along the major axis direction CL of the central steel material 21A.

The pressure receiving plate 25A is provided at a position that is inward from the end 21s of the central steel material 21A along the major axis direction CL by a certain dimension. The pressure receiving plate 25A is formed so as to extend horizontally outward from the both side surfaces 22s, 22s of the web 22A, orthogonal to the web 22A and the flange 23A, respectively.
As shown in FIG. 4, a through hole 25h is formed through the pressure receiving plate 25A.

As shown in FIG. 3, in this embodiment, on the upper side of the rib plate 24A, side plates 26, 26 provided in parallel with the web 22A are provided at positions separated by a predetermined dimension from both side surfaces 22s of the web 22A. Has been. The upper and lower ends of the side plates 26, 26 are joined to the flange 23A and the rib plate 24A, and are formed continuously in the major axis direction CL (see FIG. 1) of the central steel material 21A.

30 A of wooden members consist of laminated wood, for example. The laminated wood is obtained by laminating a plurality of thin timbers in a direction orthogonal to the long-axis direction CL of the wooden member 30A and integrally joining them with an adhesive. The wood member 30A is formed such that the fiber direction of the wood matches the major axis direction CL (see FIG. 1).
The wooden members 30A are arranged on both sides of the web 22A of the central steel material 21A. The wooden member 30A is housed in the space surrounded by the flange 23A of the central steel material 21A, the side plate 26, and the rib plate 24A above the rib plate 24A. Further, below the rib plate 24A of the central steel material 21A, two wood members 30A are stacked in a direction orthogonal to the side surface 22s of the web 22A and provided along the side surface 22s of the web 22A.

The wooden members 30A provided above and below the rib plate 24A are provided such that the outer surface 30f thereof is substantially flush with the side end portion 23s of the flange 23A. Further, the side end portion 24s of the rib plate 24A is arranged at a position closer to the web 22A side with respect to the outer surface 30f of the wooden member 30A.
As a result, when the hybrid structural member 20A is viewed from the side, mainly the outer surfaces 30f, 30f of the wooden members 30A, 30A are exposed, and a so-called tree representation is obtained, and the appearance is rich in warm wood texture. ..

As shown in FIG. 4, the end portion 30e of the wooden member 30A in the major axis direction CL is located inside the wooden member 30A by a predetermined dimension from the end surface 30s of the wooden member 30A in the major axis direction CL. A concave portion 31A that is recessed toward the web 22A side with respect to the front surface 30f is formed.
Further, a bolt insertion hole (insertion hole) 32A extending inward from the end surface 30s along the major axis direction CL of the wooden member 30A is formed in the end portion 30e of the wooden member 30A. The bolt insertion hole 32A communicates with the recess 31A. The bolt insertion hole 32A is formed so as to communicate with the through hole 25h formed in the pressure receiving plate 25A when the end surface 30s of the wooden member 30A is abutted against the pressure receiving plate 25A of the central steel material 21A.

The central steel material 21A and the wooden member 30A are integrally joined by the joining member 40. The joining member 40 includes a bolt shaft 41, washers (fixing members) 42 and nuts 43 that are attached to both ends of the bolt shaft 41, respectively.
The bolt shaft 41 is inserted into the through hole 25h of the pressure receiving plate 25A and the bolt insertion hole 32A of the wooden member 30A with the end surface 30s of the wooden member 30A abutting against the pressure receiving plate 25A of the central steel material 21A.
The washer 42 is made of, for example, a rectangular plate material that abuts the entire side surface (wooden member side pressure receiving surface) 31 s of the recess 31 and is inserted into the bolt shaft 41.
The nut 43 is screwed onto the bolt shaft 41.

In such a joining member 40, the bolt shaft 41 has one end 41a protruding into the recess 31A of the wood member 30A and the other end 41b from the pressure receiving plate 25A in a state of being inserted into the through hole 25h and the bolt insertion hole 32A. Project. A washer 42 and a nut 43 are mounted in the recess 31A at one end 41a of the bolt shaft 41, and the washer 42 is pressed against the side surface 31s on the pressure receiving plate 25A side in the recess 31A by the tightening force of the nut 43 and abuts against the side surface 31s. A washer 42 and a nut 43 are attached to the other end 41b of the bolt shaft 41, and the washer 42 is pressed against the pressure receiving plate 25A by the tightening force of the nut 43 and abuts against the pressure receiving plate 25A.
In the joining member 40, at the one end 41a and the other end 41b of the bolt shaft 41, by tightening the nuts 43 with a predetermined tightening torque, respectively, the end portion 30e of the wooden member 30A and the pressure receiving plate 25A of the central steel material 21A, It is joined via a bolt shaft 41 extending in the major axis direction CL of the hybrid structural material 20A.

Further, as shown in FIG. 1, the central steel material 21A and the wood member 30A extend in a direction orthogonal to the side surface 22s of the web 22A and are joined by a fall prevention bolt 50 penetrating the wood member 30A and the web 22A. ing.

In the lower chord member 12, at the portion where the hybrid structural members 20A, 20A are butted against each other, the webs 22A, 22A and the flanges 23A, 22A, 22A of the two members 22A, 21A of the central steel members 21A, 21A are butted. 23A, and a joint plate 28A and a bolt 29A arranged so as to straddle 23A.

As shown in FIGS. 1 and 2, the hybrid structural material 20B constituting the lattice materials 13A and 13B includes a central steel material 21B, a wood member 30B, and a joining member 40.

The central steel material 21B is formed in a T-shaped cross section integrally with a web 22B located in the vertical plane, and a flange 23B provided at one end of the web 22B and extending to both sides orthogonal to the web 22B. ..

Further, a pressure receiving plate (pressure receiving portion) 25B is integrally formed with the central steel material 21B.
The pressure receiving plate 25B is provided at an inner position of a certain dimension from the end 21s of the central steel material 21B along the major axis direction CL of the hybrid structural material 20B. The pressure receiving plate 25B is formed so as to extend horizontally outward from the both side surfaces 22s, 22s of the web 22B, orthogonal to the web 22B and the flange 23B. A through hole 25h (see FIG. 4) is formed through the pressure receiving plate 25B.

The wooden members 30B are arranged along both sides of the web 22B of the central steel material 21B.

The wood member 30B is provided with a recessed portion 31B that is recessed toward the web 22B side with respect to the outer surface 30f of the wood member 30B at a position that is inward of a predetermined dimension from the end surface 30s of the wood member 30B along the major axis direction CL. ing.
Further, the wood member 30B is formed with a bolt insertion hole (insertion hole) 32B extending inward from the end surface 30s along the major axis direction CL of the wood member 30B. The bolt insertion hole 32B communicates with the recess 31B. The bolt insertion hole 32B is formed so as to communicate with the through hole 25h (see FIG. 4) formed in the pressure receiving plate 25B when the end surface 30s of the wooden member 30B is abutted against the pressure receiving plate 25B of the central steel material 21B. ..

The central steel member 21B and the wooden member 30B are integrally joined by the joining member 40, as in the hybrid structural member 20A. As shown in FIG. 4, the joining member 40 includes a bolt shaft 41, and washers 42 and nuts 43 mounted on both ends of the bolt shaft 41, respectively.
The bolt shaft 41 is inserted into the through hole 25h of the pressure receiving plate 25B and the bolt insertion hole 32B of the wooden member 30B with the end surface 30s of the wooden member 30B abutting against the pressure receiving plate 25B of the central steel material 21B. The bolt shaft 41 has one end 41a protruding into the recess 31B of the wooden member 30B and the other end 41b protruding from the pressure receiving plate 25B. A washer 42 and a nut 43 are mounted in the recess 31B at one end 41a of the bolt shaft 41, and the washer 42 abuts the side surface 31s on the pressure receiving plate 25B side in the recess 31B by the tightening force of the nut 43. A washer 42 and a nut 43 are attached to the other end 41b of the bolt shaft 41, and the washer 42 abuts the pressure receiving plate 25B by the tightening force of the nut 43. By tightening the nuts 43 at the one end 41a and the other end 41b of the bolt shaft 41 with a predetermined tightening torque, respectively, the end portion 30e of the wood member 30B and the pressure receiving plate 25B of the central steel material 21B become longer than the length of the hybrid structural material 20B. The bolt shafts 41 extending in the axial direction CL are integrally joined.

The hybrid structural materials 20A and 20B as described above connect a plurality of wood members 30A and 30B to the central steel material 21A and 21B in the longitudinal direction CL depending on the length in the longitudinal direction CL. May be provided. Hereinafter, in the hybrid structural material 20A, a configuration in which a plurality of wood members 30A, 30A are connected in the major axis direction CL will be described, but the same configuration can be applied to the hybrid structural material 20B.
FIG. 5 is a side view showing the joint structure of the wooden members in the hybrid structural member when a plurality of wooden members are connected to the central steel member in the long axis direction. FIG. 6 is a diagram showing a work flow when connecting the wooden members in the joint structure shown in FIG. FIG. 7 is a diagram showing a work flow when connecting the wooden members in the joint structure shown in FIG. 5, and a diagram showing a state following FIG. 6 is shown in FIG. 7.

As shown in FIG. 5, in the hybrid structural material 20A, in order to connect the plurality of wood members 30A, 30A, to the end portion 30e of each wood member 30A, from the end face 30s along the longitudinal direction CL. The concave portion 61 is formed at a position inside the predetermined dimension. Further, a bolt insertion hole (connection insertion hole) 62 that extends from the end surface 30s along the major axis direction CL and communicates with the recess 61 is formed in the end portion 30e of the wooden member 30A.

Further, in at least one of the wooden members 30A, 30A facing each other in the major axis direction CL of the hybrid structural material 20A, a bolt accommodating portion extending from the recess 61 and further in the direction away from the end face 30s along the major axis direction CL. A hole 63 is formed. The bolt accommodation hole 63 is formed coaxially with the bolt insertion hole 62 with the recess 61 interposed therebetween. The bolt insertion hole 62 and the bolt accommodating hole 63 are formed to have a length capable of accommodating the entire length of the bolt shaft 81.

In the major axis direction CL of the hybrid structural material 20A, the wooden members 30A and 30A facing each other are joined via the joining member 80.
The joining member 80 includes a bolt shaft (coupling bolt shaft) 81, a washer (coupling fixing member) 82 and a nut (coupling fixing member) 83 that are respectively attached to both ends of the bolt shaft 81. ..

Both ends of the bolt shaft 81 are inserted into the bolt insertion hole 62 of the one wooden member 30A and the bolt insertion hole 62 of the other wooden member 30A, respectively. In this state, both ends of the bolt shaft 81 are exposed in the recess 61 of the wooden member 30A. A washer 82 and a nut 83 are attached to both ends of the bolt shaft 81, respectively. The washer 82 and the nut 83 are attached to the bolt shaft 81 in the recess 61, and the washer 82 is fixed to the side surface (the wood member side pressure receiving surface) 61s on the side closer to the other wood member 30A in the recess 61.
In this manner, the wooden members 30A and 30A facing each other in the major axis direction CL of the hybrid structural material 20A are connected to each other via the bolt shaft 81 extending in the major axis direction CL of the hybrid structural material 20A.

Here, in the major axis direction CL of the hybrid structural material 20A, a gap adjusting plate (gap adjusting member) 85 is sandwiched between the wooden members 30A, 30A facing each other.

As described above, in the long-axis direction CL of the hybrid structural material 20A, in order to connect the wooden members 30A, 30A that face each other, work is performed in the following procedure.
First, as shown in FIG. 6, the entire length of the bolt shaft 81 is housed in the bolt insertion hole 62 and the bolt housing hole 63 of the one wood member 30A. In this state, a part of the intermediate portion of the bolt shaft 81 is exposed inside the recess 61. Then, the wooden member 30A accommodating the bolt shaft 81 is arranged along the side surface 22s of the web 22A of the central steel material 21A.

Next, as shown in FIG. 7, another wooden member 30A that is abutted on the wooden member 30A in the major axis direction CL is arranged along the central steel material 21A. When the wooden members 30A, 30A are opposed to each other in the major axis direction CL, a gap adjusting plate 85 is inserted between the wooden members 30A, 30A as necessary to form a gap between the wooden members 30A, 30A. Close up.

Next, the bolt shaft 81 is slid to the other wooden member 30A side from the wooden member 30A side that houses the bolt shaft 81, and is inserted into the bolt insertion hole 62 of the other wooden member 30A. At this time, in one of the wooden members 30A, since the intermediate portion of the bolt shaft 81 is exposed in the recess 61, the operator holds the bolt shaft 81 in the recess 61 with a fingertip or the like, and the other wooden member 30A. It can be slid to the member 30A side.

When both ends of the bolt shaft 81 are exposed in the concave portion 61 of the one wooden member 30A and the concave portion 61 of the other wooden member 30A, as shown in FIG. The nut 82 and the nut 83 are attached to the end of the bolt shaft 81, and the nut 83 is tightened with a predetermined tightening torque.
Thereby, the wooden members 30A and 30A are joined to each other via the joining member 80.

According to the hybrid structural members 20A and 20B as described above, the central steel members 21A and 21B made of steel frame, the wood members 30A and 30B provided along the central steel members 21A and 21B, and the central steel members 21A and 21B are formed. The pressure receiving plates 25A and 25B that abut the end faces 30s of the wood members 30A and 30B orthogonally to the long-axis direction CL of the central steel materials 21A and 21B, and the long-axis direction CL of the central steel materials 21A and 21B. The joining member 40 is fixed to the members 30A and 30B and the other end is fixed to the pressure receiving plates 25A and 25B, and the joining member 40 joins the central steel members 21A and 21B and the wood members 30A and 30B.
With such a configuration, it is possible to transmit the load and stress in the long-axis direction CL acting on the hybrid structural materials 20A and 20B between the central steel materials 21A and 21B and the wooden members 30A and 30B. Therefore, in addition to the central steel materials 21A and 21B, the wooden members 30A and 30B can bear the load and stress in the longitudinal direction CL. As a result, the wooden members 30A and 30B sufficiently function as the strength and stress bearing elements of the hybrid structural materials 20A and 20B. Further, in the wood members 30A and 30B, since the fiber direction of the wood matches the long-axis direction CL, it is possible to efficiently perform stress transmission between the wood and the pressure receiving plates 25A and 25B of the central steel materials 21A and 21B. ..

Further, the wooden members 30A and 30B include side surfaces 31s of the recesses 31A and 31B orthogonal to the major axis direction CL and bolt insertion holes 32A and 32B. The joining member 40 is disposed on both ends of the bolt shaft 41 that is inserted into the bolt insertion holes 32A and 32B, and the washer 42 that is disposed on both ends of the bolt shaft 41 and that abuts the side surface 31s of the recess 31A and 31B or the pressure receiving plates 25A and 25B. And a nut 43 that is screwed to both ends of the bolt shaft 41 and presses the washer 42 against the side surface 31s of the recess 31A, 31B or the pressure receiving plate 25A, 25B.
According to such a configuration, it is possible to reliably transfer the load and stress in the major axis direction CL between the central steel members 21A and 21B and the wooden members 30A and 30B via the joining member 40.
Further, since the joining member 40 is not a high-strength bolt or the like but a so-called dry joining using a normal bolt shaft 41 and a nut 43, for example, when replacing the wooden members 30A and 30B for maintenance, a replacement work is performed. Can be done easily.

Further, the side surface 31s serving as the pressure receiving surface on the wooden member side is provided in the recess 31 formed by being recessed with respect to the outer surfaces of the wooden members 30A and 30B.
With such a configuration, the nut 43 attached to the end of the bolt shaft 41 can be housed in the recess 31. Therefore, the nut 43 can be prevented from protruding outward from the wooden members 30A and 30B, and the appearance can be improved.

In addition, when a plurality of wood members 30A are connected and provided along the long axis direction CL of the central steel material 21A, the wood members 30A and 30A facing each other are respectively arranged in the long axis direction CL of the central steel material 21A. It is provided with a side surface 61s of the recess 61 that is orthogonal to each other, and a bolt insertion hole 62 that communicates from the end of the wooden member 30A to the side surface 61s of the recess 61 along the major axis direction CL. Further, the wooden members 30A, 30A facing each other are the bolt shaft 81 inserted into the bolt insertion hole 62 of the one wooden member 30A and the bolt insertion hole 62 of the other wooden member 30A, and both end portions of the bolt shaft 81. And the washer 82 and the nut 83 fixed to the side face 61s of the one wooden member 30A or the side face 61s of the other wooden member 30A.
According to such a configuration, even when a plurality of wood members 30A are provided in the long-axis direction CL with respect to one center steel member 21A, the center steel member 21A and the plurality of wood members 30A are provided. The load and the stress in the major axis direction CL can be reliably transmitted between and.

Further, at least one of the one wooden member 30A and the other wooden member 30A facing each other in the long-axis direction CL is formed with a bolt accommodating hole 63 that is continuous with the bolt insertion hole 62 and can accommodate the entire length of the bolt shaft 81. Has been done.
With such a configuration, when connecting the one wood member 30A and the other wood member 30A, the entire length of the bolt shaft 81 is inserted into the bolt insertion hole 62 and the bolt housing hole 63 to be housed. Can be kept. After the one wooden member 30A and the other wooden member 30A are butted against each other, the housed bolt shaft 81 is projected toward the other opposing wooden member 30A side, and the other wooden member 30A is inserted with the bolt. Insert through the hole 62. Then, washers 82 and nuts 83 are attached to both ends of the bolt shaft 81. As a result, the wooden members 30A and 30A facing each other in the major axis direction CL can be easily and efficiently connected to each other.

Further, a gap adjusting plate 85 inserted between one wood member 30A and the other wood member 30A facing each other in the major axis direction CL is further provided.
When connecting the one wooden member 30A and the other wooden member 30A, it is easier to perform the work if there is a gap between the one wooden member 30A and the other wooden member 30A. After one wood member 30A and the other wood member 30A are opposed to each other along the central steel material 21A, the gap adjusting member 85 is inserted, so that one wood member 30A and the other wood member 30A are separated from each other. Can be provided without. This makes it possible to reliably transfer the load and the stress between the one wooden member 30A and the other wooden member 30A.

(Modification of the embodiment)
The hybrid structural material of the present invention is not limited to the above-described embodiment described with reference to the drawings, and various modifications can be considered within the technical scope thereof.
For example, although the washers 42 and 82 are used for the joining members 40 and 80 in the above-described embodiment, the washers 42 and 82 may be enlarged if the strength of the hybrid structural materials 20A and 20B against the stress in the tensile direction is further increased. Then, the pressure receiving areas for the side surfaces 31s of the recesses 31A, 31B and the pressure receiving plates 25A, 25B may be increased.

Moreover, in the said embodiment, although the structure of the central steel materials 21A and 21B and the wood members 30A and 30B was shown about hybrid structure material 20A, 20B, the cross-sectional shape, arrangement|positioning, a structure, etc. can be changed suitably. .. For example, the rib plate 24A and the side plate 26 are not essential components. Further, for example, the central steel material may be formed of a steel material having an H-shaped cross section, and the wood member may be housed in a space surrounded by the upper and lower flanges of the steel material and the web.

Further, in the above embodiment, an example in which the hybrid structural members 20A and 20B are used for the lower chord member 12 and the lattice members 13A and 13B of the beam 11 has been shown, but the same structure as above is applied to any other members. Can be applied.
Furthermore, the hybrid structural materials 20A and 20B do not need to have the same cross-sectional shape and the same cross-sectional structure along the major axis direction CL, and the cross section of the central steel materials 21A and 21B may be gradually reduced along the major axis direction CL. The number of arranged wooden members 30A and 30B may be increased or decreased.

Further, the building structure 10 itself configured by using the hybrid structural materials 20A and 20B may have any structure and shape.
Other than this, the configurations described in the above-described embodiments can be selected or changed to other configurations without departing from the gist of the present invention.

10 Building structure 11 Beam 12 Lower chord material (frame)
13A, 13B Lattice material (frame)
20A, 20B Hybrid structure material 21A, 21B Central steel material 25A, 25B Pressure receiving plate (pressure receiving portion)
30A, 30B Wood member 30s End surface 31A, 31B Recess 31s Side surface (wood member side pressure receiving surface)
32A, 32B Bolt insertion hole (insertion hole)
40 joining member 41 bolt shaft 42 washer (fixing member)
43 nut 61 concave portion 61s side surface (connecting pressure receiving surface)
62 Bolt insertion hole (connection insertion hole)
63 bolt receiving hole 80 joining member 81 bolt shaft (bolt shaft for connection)
82 Washer (fixing member for connection)
83 Nut (fixing member for connection)
85 Gap adjusting plate (gap adjusting member)

Claims (6)

A hybrid structural material that constitutes the body of a structure,
Ri Do from steel, and the web, and a flange that is joined to the width direction of the one end of the web, the center steel,
As along the central steel material, wood members provided on both sides of the web ,
A pressure receiving portion formed in the central steel material and abutting the end face in the long axis direction of the wood member orthogonal to the long axis direction of the central steel material,
A joining member extending in the long axis direction, one end of which is fixed to the wood member and the other end of which is fixed to the pressure receiving portion, which joins the central steel material and the wood member,
A hybrid structural material comprising: The wooden member is
A wooden member side pressure receiving surface orthogonal to the long axis direction,
An insertion hole communicating from the end surface of the wooden member to the pressure receiving surface on the wooden member side along the long axis direction,
The joining member is
A bolt shaft inserted through the insertion hole,
Fixing members that are respectively arranged at both ends of the bolt shaft and abut against the wooden member-side pressure receiving surface or the pressure receiving portion,
A nut that is screwed to both ends of the bolt shaft and presses the fixing member against the pressure receiving surface of the wooden member or the pressure receiving portion,
The hybrid structural material according to claim 1, further comprising: The hybrid structural material according to claim 2, wherein the pressure receiving surface on the wooden member side is provided in a recessed portion that is recessed with respect to an outer surface of the wooden member. Along the long axis direction of the central steel material, a plurality of the wood members are provided so as to be connected,
The wood members facing each other in the long axis direction communicate with the connection pressure receiving surface orthogonal to the long axis direction and from the end of the wood member along the long axis direction to the connection pressure receiving surface. And a through hole for connection,
The wooden members facing each other in the long axis direction,
A connecting bolt shaft inserted into the connecting insertion hole of the one wooden member and the connecting insertion hole of the other wooden member,
A connecting fixing member that is attached to both ends of the connecting bolt shaft and is fixed to the connecting pressure receiving surface of the one wooden member or the connecting pressure receiving surface of the other wooden member,
The hybrid structural material according to any one of claims 1 to 3, wherein the hybrid structural material is connected by. At least one of the one wood member and the other wood member facing each other in the long axis direction is formed with a housing hole capable of housing the entire length of the connecting bolt shaft by being connected to the connecting insertion hole. The hybrid structure material according to claim 4, wherein: The central steel material includes side plates provided on both sides of the web at positions spaced from the web,
The hybrid structural material according to any one of claims 1 to 5, wherein the wooden member is provided outside the side plate along the side plate.

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