JP2017122369A - Horizontal member, structure for mounting face material by using horizontal member, and structure for mounting face material and frame material by using horizontal member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a horizontal member made of H-shaped steel that enables rationalization of a structure when used as the horizontal member.SOLUTION: In a horizontal member (10) forming a part of a structure of a building, bent parts (11b) are provided at both width-direction ends of at least one (11) of two flanges provided almost in parallel and constituting H-shaped steel. The bent part is bent in such a shape as to make an acute angle toward the other flange with respect to a main part (11a) that is an unbent part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to horizontal members such as beams and joists made of H-shaped steel used for wooden buildings, mounting structures for face members using the horizontal members, and face members formed using the horizontal members. The present invention relates to a mounting structure between the frame and the frame material.

  Considering application to store-use houses and health facilities, 2x4 construction methods with medium to large spans (about 5m to 8m and even more than 8m) expanded from conventional spans (about 3m to 4m) are being studied. When the span is expanded in this way, the horizontal members such as floor joists using conventional timber will have excessive deflection, so the steel member such as lightweight H-shaped steel with excellent bending resistance can be used as the horizontal member. Is being considered. Patent Documents 1 and 2 disclose a form in which H-shaped steel is used as a horizontal member of a wooden house.

JP 10-317563 A JP-A-8-13610

  As described above, the application of steel members such as lightweight H-section steel with excellent bending resistance as horizontal members has been studied, and the realization of a large span structure in which lightweight H-section steel is incorporated into horizontal members such as floor joists Therefore, there is a need for a joint structure that rationalizes the structure connecting steel horizontal members and wooden surrounding members (edge joists and pillars) and rationalizes construction. On the other hand, the inventions described in Patent Documents 1 and 2 are not sufficient, and further devices are required.

  Then, this invention makes it a subject to provide the horizontal member by the H-section steel which enables rationalization of a structure, when it uses as a horizontal member in view of the said problem. Moreover, the attachment structure with the surface material using this horizontal member, and the attachment structure with the surface material and the frame material using the horizontal material are provided.

  The present invention will be described below. Here, for easy understanding, reference numerals attached to the drawings are described in parentheses, but the present invention is not limited thereto.

  The invention according to claim 1 is a horizontal member (10, 20) that forms a part of the structure of a building, and is at least one of two flanges that are substantially parallel and that form an H-shaped steel. The flange (11) has bent portions (11b) at both ends in the width direction, and the bent portion has an acute angle with respect to the main portion (11a) which is not bent, on the other flange (12). It is a horizontal member that is bent toward the side.

  According to a second aspect of the present invention, in the horizontal member (10, 20) according to the first aspect, the bent portion (11b) has an acute angle with respect to the main portion (11a) which is an unbent portion. Thus, it is bent toward the other flange (12), and the angle is not less than 30 degrees and not more than 60 degrees.

  Invention of Claim 3 is the outer surface (11c) of the flange (11) in which the bending part (11b) was formed among the horizontal members (10, 20) of Claim 1 or 2, and horizontal members. The horizontal member and the face material are fixed by a fixing member (15) penetrating the main portion (11a), the bent portion, and the face material. This is a mounting structure of a face material.

  The invention according to claim 4 is the horizontal member (10, 20) according to claim 1 or 2, and the outer surface (11c) of the flange (11) in which the bent portion (11b) is formed of the horizontal member. The surface material (2, 22) fixed to the surface material and the two surfaces (2a, 2b, 22a, 22b) of the surface material are arranged on the surface (2a, 22a) opposite to the horizontal material, A frame member (3) arranged, and a horizontal member, a face member, and a frame member pass through the main part (11a), the bent portion, and the face member, and reach the frame member (15) It is the attachment structure of the face material and the frame material which are fixed by.

  According to the present invention, it is possible to rationalize the structure and more firmly fix the structure.

1 is a perspective view schematically showing a part of a structure of a building 1 with attention paid to. It is a perspective view explaining the joist 10 and the floor surface material 2. FIG. It is sectional drawing explaining the attachment structure of a face material. It is the figure which expanded and represented a part of FIG. It is sectional drawing explaining the attachment structure of a face material and a frame material. It is sectional drawing explaining the attachment structure of the joist 20, the floor surface material 2, and the ceiling surface material 22. FIG. It is sectional drawing explaining the attachment structure of the joist 20, the floor surface material 2, the ceiling surface material 22, and the horizontal frame material 3. FIG.

  The present invention will be described based on the form shown in the drawings. However, the present invention is not limited to these forms. In the drawings shown below, some repetitive symbols may be omitted for ease of viewing.

  FIG. 1 is a diagram showing one form example, and is a perspective view extracted by paying attention to the floor portion 1 a of the first floor portion and the floor portion 1 b of the second floor portion of the building 1. Part members are omitted.

  In this embodiment, as can be seen from FIG. 1, the floor material 2 is held and fixed to the joists 10 that are one of the horizontal members from the lower surface side. In addition, the building 1 has what a normal wooden building should have in its structure, and a well-known form can be applied to this. In addition, the horizontal frame material 3 which is a frame material for forming a wall, and the vertical frame material 4 are provided in the outer peripheral part of floor part 1a, 1b. In FIG. 1, a part of the horizontal frame member 3 and the vertical frame member 4 is cut out.

  Hereinafter, in the building 1, the joist 10 (horizontal member 10), the floor member 2 attached thereto, and the attachment structure of the face member using the joist 10 will be described. FIG. 2 is a perspective view showing a part of the mounting structure of the face material. In FIG. 2, the face material on the lower right side of the drawing is omitted in order to represent the joist 10. FIG. 3 is a cross-sectional view in a direction orthogonal to a direction in which the joists 10 have an H-shaped cross section in the face member mounting structure. In FIG. 3, one joist 10 and two floor materials 2 attached thereto appear. As can be seen from FIGS. 1 to 3, the mounting structure of the face material includes the floor surface material 2, joists 10 as horizontal members, and a fixing member 15.

  The floor surface material 2 is one of the surface materials, and among them, the floor surface material 2 is a plate-shaped surface material for forming a floor. Here, the floor material is not particularly limited, and a known floor material can be applied. When a building is formed, a decorative material or the like that forms the floor surface is disposed on the upper surface of the floor surface material 2 (the surface 2a opposite to the side on which the joists 10 are disposed). The surface on the joist 10 side is the surface 2b.

  The joist 10 is one of the horizontal members, and is a rod-like member that supports the face material (in this embodiment, the floor surface material 2). In the present invention, the joist 10 is an elongate member comprising an H-shaped steel and thus having an H-shaped cross section and extending in one direction as can be seen from FIG. More specifically, as can be seen from FIG. 3, the joist 10 has a first flange 11, a second flange 12, and a connecting portion 13.

  The 1st flange 11 is a flange which mounts a face material (this embodiment floor surface material 2), and fixes a face material in this form. As can be seen from FIG. 3, the first flange 11 has a configuration in which both ends in the width direction (left and right direction in FIG. 3) are bent, and specifically includes a main portion 11 a and a bent portion 11 b. FIG. 4 shows an enlarged view focusing on the vicinity of the first flange 11 in FIG.

The main portion 11 a is a portion of the first flange 11 that is provided with a predetermined interval so as to face the second flange 12 in parallel.
The bent portion 11b is a portion formed so that the both ends in the width direction of the main portion 11a are bent and the direction is changed so as to have an acute angle with respect to the main portion 11a. Thereby, the intensity | strength of the 1st flange 11 can be improved. That is, when a compressive force is applied to the first flange 11 by a load from above, local buckling becomes difficult and the yield strength is improved. The bent portion 11b is provided on the second flange 12 side of the first flange 11, and the angle formed with the main portion 11a indicated by θ in FIG. 4 is 0 degree or more and less than 90 degrees. Thereby, at the time of fixing with the floor material 2, the fixing member 15 can be penetrated through both the 11a and the bent portion 11b, and the stable floor material can be fixed. Preferably, θ is 30 degrees or more and 60 degrees or less. Thereby, it is easy to attach the fixing member 15, and for example, even when a nailing machine is used, a space for arranging the nailing machine can be secured.

  The thickness of the main part 11a and the bent part 11b is based on the fact that the fixing member 15 can be appropriately penetrated, and the specific value is not limited, but is 1.6 mm or more and 6.0 mm or less. It is more preferable. As a result, even if the fixing member 15 is a nail or a drill screw, the main member 11a and the bent part 11b can be appropriately penetrated and stably fixed.

Further, it is preferable that the width _{W 11} of the first flange 11 is 100mm or more 200mm or less. According to this, the overlapping part of the 1st flange 11 and the floor material 2 can be taken large, and it becomes easy to fix the 1st flange 11 and the floor material 2 also by this.

  The 2nd flange 12 is a flange arrange | positioned in parallel with a predetermined space | interval so that one surface may oppose the main part 11a of the 1st flange 11 with this form. In this embodiment, the second flange 12 is an ordinary plate-like member and may be a known flange. Preferably, the cross-sectional area of the cross section of the second flange 12 shown in FIG. 3 is substantially the same as the cross-sectional area of the cross section of the first flange 11. Here, “substantially the same” does not have to be exactly the same, and means that the difference that is considered to be the same can be regarded as the same. Specifically, the difference up to ± 10% may be considered the same. As a result, the center of gravity of the joists 10 can be made substantially in the center of the joists 10, and the design of the building including the floor structure can be simplified.

Although the specific dimension of the 2nd flange 12 is not specifically limited, It is preferable that the thickness of the 2nd flange 12 is 3.2 mm or more and 15 mm or less. Thereby, a sufficient bending resistance can be ensured.
Further, it is preferable that the width _{W 12} is 80mm or more than 100mm.

The web 13 is a plate-like member having one end joined to the first flange 11 and the other end joined to the second flange 12 in the cross section shown in FIG. 3. Thereby, the 1st flange 11 and the 2nd flange 12 are integrated. A means for joining is not particularly limited, and a known joining technique can be used. This can include, for example, welding.
Here, the web 13 is preferably arranged so that the joists 10 are symmetrical with respect to the web 13 in the cross section shown in FIG. According to this, the center of gravity in the cross section of the joist 10 shown in FIG. The center of gravity is preferably a position close to the center in the thickness direction of the joist 10 in the cross section in FIG. Thereby, it becomes difficult to produce buckling with respect to a load.

  The distance D between the main portion 11a of the first flange 11 and the second flange 12 maintained by the web 13 is not particularly limited, but is preferably in the range of 100 mm to 450 mm.

  Here, joists 10 are made of steel. Although the specific kind of steel material is not specifically limited, It is preferable to use the material for the structure of a building.

A plurality of joists 10 as described above are arranged horizontally as shown in FIG. At this time, it arrange | positions so that the outer surface 11c of the 1st flange 11 may become the floor surface material 2 side. Then, the floor material 2 is placed so as to pass the surfaces of the first flanges 11 of the plurality of joists 10. As shown in FIGS. 3 and 4, the floor material 2 and the first flange 11 overlap each other. On the other hand, the fixing member 15 is disposed so as to penetrate both in the thickness direction. At this time, the floor material 2 is overlapped so that the surface 2 b contacts the outer surface 11 c of the first flange 11.
Here, the fixing member 15 joins the portion where the floor material 2 and the first flange 11 overlap, but the fixing member 15 includes the floor material 2, the main portion 11a of the first flange 11, and the first flange 11. It arrange | positions so that the bending part 11b may be penetrated. As a result, the fixing member 15 passes through the first flange 11 at two locations, and a strong and stable fixing equivalent to the thickness of the main portion 11a and the thickness of the bent portion 11b is possible. Further, the wider the distance between the main portion 11a and the bent portion 11b through which the fixing member 15 penetrates, the more firmly the fixing member 15 is restrained, and the inclination and bending are less likely to occur. Moreover, if the construction of the fixing member 15 has a construction machine having the ability to penetrate one piece of the first flange 11, the penetration of the main part 11a and the bending part 11b combines the ability of the construction machine twice. It can be fixed easily. Therefore, it is preferable to use a nail or a drill screw as the fixing member.
As described above, the mounting structure of the face material using the horizontal member made of the joists 10 and the floor surface material 2 is formed.

  According to this structure, since the H-shaped steel is used as the horizontal member, it is possible to ensure high durability against the wood. Further, the face material can be directly joined to the horizontal member made of H-shaped steel, and the number of parts and the number of processing steps can be reduced. In this case, the fixing member penetrates the first flange a plurality of times, so that strong and stable fixing can be performed.

  If the shapes of the first flange 11 and the second flange are different depending on the purpose, but the cross-sectional areas of the two are substantially the same, the neutral shaft substantially maintains the center of the horizontal member and is bent. Stiffness and proof stress can be kept to the maximum. Accordingly, it is not necessary to change the strength design or the like regardless of the cross-sectional shape, and the design can be facilitated. Furthermore, the stress level generated in the face material side flange 11 and the base side flange 12 with respect to the bending moment associated with the load is substantially the same, and either one of them does not yield in advance, and the design can be rational. it can.

FIG. 5 shows a view for explaining a mounting structure of a face member and a frame member to which the joist 10 (horizontal member) is applied. FIG. 5 is a view from the same viewpoint as FIG.
In this embodiment, in addition to the mounting structure with the floor material 2 using the joists 10, the horizontal frame material 3 and the vertical frame material 4 are also added. Therefore, in this attachment structure, the joist 10, the floor surface material 2, the fixing member 15, the horizontal frame material 3, and the vertical frame material 4 are provided. Here, the joists 10, the flooring material 2, and the fixing member 15 are the same as those described above, and the description thereof will be omitted.

  The horizontal frame member 3 is a rod-like long member that is placed on the surface opposite to the side on which the joists 20 are arranged in the surface of the floor member 2 and extends along the surface. 4 functions as a frame material for the wall. Such a horizontal frame member 3 itself can be a known one, and is not particularly limited.

  The vertical frame member 4 is a rod-like long member that is erected from the surface of the horizontal frame member 3 on the side opposite to the floor member 2 side, and is arranged so as to extend in the vertical direction. 3 functions as a frame material for the wall. As such a vertical frame member 4 itself, a known material can be used and is not particularly limited.

Also in this aspect, a plurality of joists 10 are arranged horizontally as shown in FIG. At this time, the outer surface 11 c of the first flange 11 is disposed so as to contact the surface 2 b of the floor material 2. And the flooring material 2 is placed so that the surface of the 1st flange 11 of several joists 10 may be passed. Further, the horizontal frame material 3 is disposed along the surface 2 a of the floor surface material 2, and the vertical frame material 4 is erected from the upper surface of the horizontal frame material 3. Then, as shown in FIG. 5, the floor frame material 2, the first flange 11, and the horizontal frame material 3 overlap each other through the floor surface material 2 and the first flange 11, and the horizontal frame material 3. The fixing member 15 is arranged so as to reach
Here, the fixing member 15 joins the portion where the floor material 2, the first flange 11, and the horizontal frame material 3 overlap, but the fixing member 15 includes the floor material 2, the main portion 11 a of the first flange 11, It arrange | positions so that the bending part 11b of the one flange 11 may be penetrated and the horizontal frame material 3 may be reached. As a result, the fixing member 15 penetrates through two locations of the first flange 11, and a stronger and more stable fixing is possible. Therefore, it is preferable to use a nail or a drill screw as the fixing member.
As described above, the attachment structure of the face material using the joist 10, the floor surface material 2, and the horizontal member made of the frame material is formed.

FIG. 6 is a diagram illustrating another embodiment, and is a diagram from the same viewpoint as FIG. In this embodiment, joists 20 are used as the horizontal member. Then, the lower floor ceiling material 22 and the upper floor material 2 are connected by the joist 20.
As can be seen from FIG. 6, in the joist 20, both of the two flanges have the same form as the first flange 11 described above. At this time, the bent portions 11b are formed on the sides facing each other.
According to this mode, face materials can be arranged on both sides as in this mode, and these can be firmly connected.

FIG. 7 is also an example in which joists 20 are used in the same manner. In this example, the horizontal frame member 3 is also fixed in addition to the floor member 2 and the ceiling member 22.
According to this form, a face material and a horizontal frame material can be arranged on both sides as in this form, and these can be firmly connected.

1 Building 2 Floor material (Face material)
3 Horizontal frame material (frame material)
4 Vertical frame material (frame material)
10 joist 11 first flange 11
12 Second flange 12
13 web 15 fixing member 20 joist

Claims (4)

A horizontal member that forms part of the structure of the building,
Of the two flanges that are substantially parallel to form the H-shaped steel, at least one flange has bent portions at both ends in the width direction,
The horizontal member, wherein the bent portion is bent toward the other flange so as to have an acute angle with respect to a main portion which is a non-bent portion.   The said bending part is bent toward the other flange so that it may become an acute angle with respect to the said main part which is the said unbent part, The angle is 30 to 60 degree | times. The horizontal member described in 1. The horizontal member according to claim 1 or 2,
A surface material fixed to the outer surface of the flange formed with the bent portion of the horizontal member,
The horizontal member and the face member are fixed to each other by a fixing member that penetrates the main part, the bent portion, and the face member. The horizontal member according to claim 1 or 2,
A face material fixed to the outer surface of the flange formed with the bent portion of the horizontal member,
A frame member disposed on the surface of the two opposite surfaces of the face member, the frame member disposed on the face member;
The horizontal member, the face member, and the frame member are fixed by a fixing member that penetrates the main portion, the bent portion, and the face member and reaches the frame member. Mounting structure.

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