WO2006073000A1

WO2006073000A1 - Reinforcing structure for opening wall in steel house

Info

Publication number: WO2006073000A1
Application number: PCT/JP2005/000425
Authority: WO
Inventors: Yoshimichi Kawai; Shigeaki Tohnai; Yoshimitsu Murahashi
Original assignee: Nippon Steel Corporation
Priority date: 2005-01-07
Filing date: 2005-01-07
Publication date: 2006-07-13
Also published as: CN101099011B; CN101099011A

Abstract

A reinforcing structure for an opening wall capable of reducing a horizontal deformation and a drawing force acting on vertical frame materials when a horizontal force acts on a steel house formed of frame materials of lightweight shape steel sheet. The four sides of each of opening parts (8) are formed of the vertical frame materials (22) for mounting lintel receiving members positioned apart from each other and an opening part upper frame member (18) and an opening part lower frame material (24) fixed to the vertical frame materials at their end parts. A vertical wall (26), a spandrel wall (27), and side walls (28) are formed by fixing structural surface materials to the frame materials on the sides and the frame materials on the outside of the sides. Frame materials (29a) for reinforcement are fixed so as to position on the extensions of the opening part upper frame material (18) and the opening part lower frame material (24). Steel materials (33) for connection passed through the vertical frame materials (22) are fixed to the opening part upper frame material (18), the opening part lower frame material (24), and the frame materials (29a) for reinforcement. The side walls (28) are fixed to the frame materials (29a) for reinforcement with drill screws, and the vertical wall (26) and side walls (28), and the spandrel wall (27) and the side walls (28) are connected to each other, respectively, so that shearing forces can be transmitted to each other.

Description

Reinforcement structure of opening wall in steel house

Technical field

The present invention relates to a steel housing (a steel frame structure composed of a frame material made of a thin lightweight steel with a thickness of about 1 mm and a structural face material combined with the frame material).

This is related to the reinforcement structure of the open wall in the Nell structure building is defined as a steel house.

Background art

The above-mentioned frame material in the steel house is formed into a cross-sectional shape such as a groove shape, a groove shape with a lip, or a box shape by forming a thin steel plate by mouth forming. They are molded together, and when they are constructed, they are used as a single frame material or as a reinforcing frame material in which multiple frame materials are joined with a drill screw, and these steel materials are joined with a drill screw. Build the main frame of the building.

Fig. 1, Fig. 2 (a), Fig. 2 (b), and Fig. 3 explain the structure of the conventional steel house method. A plurality of vertical frame members 2 stand up from the lower frame member 1 with a predetermined interval, and the upper ends of the vertical frame members 2 are joined by the upper frame member 3. The lower frame member 1 and the vertical frame A structural frame material 7 (shown in FIG. 3) is fixed to a wall frame material composed of a material 2 and an upper frame material 3 with a drill screw 23. The building has openings 8 such as doorways 8a and windows 8b.

A side joist 5 a and an end joist 5 b are supported on the upper frame member 3 to which the structural face material 7 is attached, and both joists are assembled in a rectangular shape. A plurality of floor joists 10 are provided at predetermined intervals in parallel with the side joists 5 a. Both ends of the joist 10 are connected to the front joist 5 b or the floor joist 1 2 via the receiving metal 1 1, respectively. Side panels 5 a, edge joists 5 b, floor joists 10 and floor beams 1 2 are laid with structural panels 13 such as plywood to form floor panels 14. In FIG. 1, 10 a is a floor opening end joist, 10 b is a floor opening side joist, 10 c is a joist support, and 10 d is a stopper.

In the building by this steel house method (called SH method), there is no vertical frame material 2 in the openings 8 such as the entrances 8a and 8b. There is no vertical support column to support the vertical load, and the area of the opening 8 is weak in strength. For this reason, it is necessary to reinforce the upper part of the opening 8, and a lintel 15 is provided on the opening 8.

As shown in Fig. 2 (a) and Fig. 2 (b), the upper frame material 3 and the lintel frame material 17 are provided above and below the lintel 15 of the window 8b (opening 8). The lintel vertical frame material 1 9 is provided between the material 1 7 and the upper frame material 1 8 of the opening, and both ends of the lintel 1 5 are attached to the lintel support 2 0 via the lintel support 2 1. The lintel support 20 is fixed to the vertical frame member 2 2 for mounting the lintel support. The lower and upper ends of the vertical frame member 2 2 for attaching the lintel support are fixed to the lower frame member 1 and the upper frame member 3 with drill screws 23. In FIG. 2, the opening lower frame member 24 is supported by the upper end of the opening lower frame member 25 having the lower end fixed to the lower frame member 1. 2 4 a is a receiving member.

As shown in FIG. 3, a structural face material is fixed to each of the opening lower frame member 24 and each frame member disposed above it with a drill screw 23 to form a vertical wall 26. Further, a structural wall material is fixed to the lower frame material 2 4 of the opening and each frame material arranged below it by a drill screw 23 to constitute a waist wall 2 7.

In addition, the structural frame material is fixed to the side wall by the drill screw 23 on the vertical frame material 2 2 for attaching the lintel support and the frame materials on both outer sides (vertical frame material 2 a). Consists of 2-8.

As described above, the vertical wall 2 6, the waist wall 2 7, and the side wall 2 8 are arranged on the four sides of the opening 8 on the upper, lower, left, and right sides through the frame members arranged on the respective sides. Although there is no frame material (support pillar) in the opening 8, the area around the opening 8 lacks strength when a horizontal force is applied due to an earthquake or the like. At this time, the four sides of the opening 8, that is, the frame material on each side of the rectangle and the frame material located outside of it move laterally, and the left and right lintels located on both sides of the opening 8. Pull-out force and compressive force act on the vertical frame member 2 2 for mounting.

In this case, if the hanging wall 2 6 and the waist wall 2 7 and the side wall 2 8 made of a structural surface material attached around the opening 8 are rigidly connected to each other, each wall functions as a resistance wall. However, it should have a function to restrain the horizontal force movement of the frame material around the opening. However, in the past, on the contrary, loose joints were used so that the behavior of the vertical wall 26 and waist wall 2 7 due to horizontal forces such as earthquakes did not affect the side wall 28 and the outer wall. It is said that. The behavior of the vertical wall 26 and the waist wall 2 7 and the mutual behavior of the side wall 28 are shown in Fig. 4 (a) and Fig. 5 (a). The force is not transmitted to the vertical wall 2 6 and the waist wall 2 7, so the side wall 2 8 swings independently of the vertical wall 2 6 and the waist wall 2 7 (the problem of this will be described later). .

As another prior art (1), there is a “wall structure and face material pasting method” disclosed in Japanese Patent Application Laid-Open No. 2 00 0-2 3 4 4 0 6. This prior art (1) is a method of shifting the joint portion of the face material of the side wall (sleeve wall) from the position of the plywood of the vertical wall. As a prior art (2), there is a “calculation method of a wooden house and a wooden house built by using this method” disclosed in Japanese Patent Application Laid-Open No. 20 0 1 — 1 6 4 6 4 5. This prior art (2) discloses only the calculation of the waist wall and the vertical wall. As prior art (3), Japanese Patent Laid-Open No. There is a “wooden house”. In this prior art (3), a plywood is attached to a conventional wooden structure so as to allow for resistance against the waist wall and the vertical wall, but the frame (frame material) joint structure as in the present invention is used. It is not disclosed, and cannot be applied to the configuration for causing the waist wall and the vertical wall to act as a resistance wall, which is the subject of the present invention.

As shown in Fig. 4 (a), conventionally, when the vertical wall 26 and the waist wall 2 7 and the side wall 28 (horizontal wall) 8 move horizontally due to an earthquake or the like, the vertical wall 2 6 and the waist wall 2 Assuming that the behavior of 7 does not adversely affect the side wall 2 8 (wall), the space between the hanging wall 2 6 and the side wall 2 8 and the space between the waist wall 2 7 and the side wall 2 8 are loose. In this case, the behavior of the vertical wall 26 and the waist wall 2 7 and the mutual behavior of the side wall 28 are as shown in Fig. 5 (a).

That is, between the side walls 2 8 on both sides of the opening, the shear force transmission mechanism is structurally cut by the opening 8 and the vertical walls 2 6 and the waist walls 2 7 on both sides thereof. 28 is less resistant to roll and more horizontal deformation. In addition, as shown by the arrows in Fig. 5 (a), downward force (pull-out force), upward force (compression force), rightward force, and leftward force act alternately and cyclically, resulting in large left and right shaking. The downward force (pull-out force) and the upward force (compression force) increase.

In particular, the downward force (pull-out force) is the sum of the downward arrows of the dotted ellipse (ii) in Fig. 5 (a). Therefore, if this downward force is large, the downward force (pull-out force) also increases. . In order to resist this pulling force, it is necessary to increase the size of the vertical frame material to which the <1> side wall 28 (anti-wall) is attached, and 2> hold down hardware to attach the vertical frame material to the foundation, etc. It is necessary to increase the strength by making the anchors for fixing the <3> fall-down hardware to the concrete foundation thicker and longer. Pulling like this The large pull-out force and compression force increase the size of hole-down hardware, anchors and vertical frames.

The root of the problem lies in loosely joining the vertical wall 2 6 and the waist wall 2 7 and the side wall 2 8, and the vertical wall 2 6 and the waist wall 2 7 do not function as resistance walls, Unless this problem is solved, the above problem cannot be solved.

Disclosure of the invention

In order to solve the above-described problem, the vertical wall 2 6 and the waist wall 2 7 arranged above and below the opening are made to function as a resistance wall. In other words, the behavior of the side wall 2 8 is suppressed as much as possible by joining the vertical wall 26, the waist wall 2 7 and the side wall 2 8 to each other so that shearing force can be transmitted. This is the opposite concept to the conventional loosely coupled structure of the vertical wall 26 and the waist wall 2 7 and both side walls. By effectively using as a shear panel, horizontal deformation of the side wall 28 can be suppressed, and furthermore, pulling force and compression force acting on the side wall 28 can be suppressed. And gained knowledge.

An object of the present invention is to provide a reinforcing structure for an opening wall in a steel house created based on the above knowledge. To achieve the above object, the present invention is as follows. Configure.

According to a first aspect of the present invention, there is provided a vertical frame member for attaching a lintel support that is erected at a predetermined interval between a lower frame material and an upper frame material, and an opening in which both ends are fixed to the vertical frame material for both lintel support attachments. The upper frame material and the opening lower frame material constitute four sides of the opening, and the structural surface material is fixed to the frame material of each side and the frame material arranged outside each side with a drill screw. In steel house consisting of vertical wall, waist wall and side wall, each frame material made of thin lightweight steel, connecting metal so that it is located on the extension of the upper frame material of the opening and the lower frame material of the opening By installing an object and fixing the side wall to the connection hardware with a drill screw, the vertical wall and the side wall and the waist wall and the side wall are connected to each other through the connection hardware so that shear force can be transmitted to each other. It is characterized by that.

According to a second aspect of the present invention, the connection hardware according to the first aspect of the present invention has substantially the same cross-sectional shape as the opening upper frame member and the opening lower frame member on the extension of the opening upper frame member and the opening lower frame member. The reinforcing frame member is joined to the opening upper frame member and the opening lower frame member, and the side wall is fixed to the reinforcing frame member with a drill screw so that the reinforcing frame member is suspended via the reinforcing frame member. It is characterized in that the wall and the side wall and the waist wall and the side wall are connected to each other so as to be able to transmit a shearing force.

According to a third aspect of the present invention, the connecting hardware according to the first aspect is provided with a reinforcing frame member having a substantially the same cross-sectional shape as the upper and lower frame members of the opening portion on the extension of the upper and lower frame members of the opening portion. Passing through the opening hole in the vertical frame material for mounting the support, one end protruding from the hole is fixed to the upper frame material of the opening and the lower frame material of the opening, and the other end is fixed to the reinforcing frame material It is composed of a connecting steel material made of L-shaped steel or the like having a predetermined length, and a side wall is fixed to the reinforcing frame member with a drill screw, so that the vertical wall and the vertical wall are interposed via the connecting steel material and the reinforcing frame material. It is characterized in that the side wall and the waist wall and the side wall are connected to each other so that shear force can be transmitted.

According to the present invention, in the opening wall of the steel house, a connection hardware is provided on the extension of the upper frame material of the opening and the lower frame material of the opening, and the side wall is joined to the connection hardware by a drill screw. The vertical wall, waist wall, and side wall can be connected via a hardware so that shear force can be transmitted, and when a horizontal force is applied due to an earthquake or the like, the vertical wall and waist wall can function as a resistance wall. . -In this way, the side walls on both sides of the opening that have been divided in the past are connected so that shear force can be transmitted to increase the rigidity, and as the rigidity of the side walls increases, It is possible to suppress horizontal deformation of the vertical frame member for attaching the lintel support and other vertical frame members to which the side walls are joined. In addition, the pulling force and compressive force acting on the vertical frame material for attaching the lintel support and other vertical frame materials located on both sides of the opening can be reduced, and as a result, <1> downsizing of the vertical frame material <2> A reduction in the size of the hole-down hardware that fixes each vertical frame material to the foundation, etc. <3> A reduction in the size of the anchor that fixes the hole-down hardware to the foundation. Therefore, the material cost of these members can be reduced, and the ease of construction can be realized. These effects can be quantified by the shear panel theory. Brief Description of Drawings

FIG. 1 is a perspective view of a steel house shown as a conventional example.

Fig. 2 (a) is an exploded perspective view of the opening frame material (window frame).

Fig. 2 (b) is a perspective view after the opening frame member (window frame) is assembled. FIG. 3 is a front view of an opening wall according to a conventional example.

Fig. 4 (a) is a schematic diagram of a deformation mode of the vertical wall, the waist wall, and the both side walls in the opening wall of the conventional example.

FIG. 4 (b) is a schematic view of a deformation mode of the vertical wall, the waist wall, and the both side walls in the opening wall according to the present invention.

Fig. 5 (a) is a transmission path diagram of the shearing force when the vertical wall, waist wall, and both side walls of the conventional opening wall are deformed.

FIG. 5 (b) is a transmission path diagram of the shear force when the vertical wall, the waist wall, and the both side walls of the opening wall according to the present invention are deformed.

FIG. 6 (a) is a schematic view of the opening wall according to the present invention.

FIG. 6 (b) is a schematic view of the opening frame material according to the present invention.

FIG. 7 is a perspective view after assembly of the opening (window frame) according to the present invention. FIG. 8 is a front view of the opening wall according to the present invention. FIG. 9 is a partial perspective view of the reinforcing structure of the opening wall according to the embodiment of the present invention.

FIG. 10 (a) is a cross-sectional view of part (A) of FIG.

FIG. 10 (b) is a cross-sectional view of part (B) of FIG. BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 6 (a) and 6 (b) are schematic diagrams showing the basic principle of the present invention, and FIGS. 7 and 8 show structures that make this more concrete.

Fig. 6 (a), Fig. 6 (b), Fig. 7 and Fig. 8 show a wall 3 2 with an opening 8 such as a window in a steel house, and a vertical wall 26 is above the opening 8 The lower wall is installed with waist wall 27, and side walls (part of bearing wall) 28 are installed on both sides. Each wall is constructed by fixing structural face materials with drill screws to a thin lightweight steel frame. More specifically, in the vertical wall 26, the structural face material is fixed to the upper frame material 3, the opening upper frame material 18 and the lintel vertical frame material ₁₉ with a drill screw. On the waist wall 2 7, the structural face material is fixed to the lower frame material 1, the opening lower frame material 2 4, and the opening lower vertical frame material 25 with a drill screw. In the side wall 28, the upper frame material 3, the lower frame material 1, the vertical frame material 2 2 for mounting the lintel support, and the vertical frame material 2a that rises in parallel with this, use structural screws for drilling. It is stuck. Further, as shown in the dotted elliptical part (Mi) in FIGS. 6 (a) and 6 (b), in the present invention, the connection hardware 2 is placed on the extension line of the opening upper frame member 1 8 and the opening lower frame member 2 4. 9 is installed. The specific structure of the connecting hardware 29 may be arbitrary. For example, as shown in FIGS. 7 and 8, the reinforcement is made of a thin lightweight steel having the same cross section as the upper and lower frame members 1 8 and 2 4 of the opening. You may comprise for frame material 29a. In addition, the reinforcement frame 29a is composed of L-shaped steel with a predetermined length penetrating the lintel support mounting frame 2 2 to the left and right. The connecting steel materials 33 may be combined (details will be described later with reference to FIG. 9, FIG. 10 (a) and FIG. 10 (b)).

On the side wall 2 8, the structural face material 7 is changed into the upper frame material 3, the lower frame material 1, the vertical frame material 2 2 for attaching the lintel support, and the vertical frame material 2 a that rises in parallel to the outside of this. In addition to being secured with the drill screw 2 3, it is also secured to the connection hardware 2 9 with the drill screw 2 3. Therefore, the upper frame material 3, the lower frame material 1, the opening upper frame material 1 8 and the opening lower frame material 2 4 and the vertical wall 2 6 and the waist wall 2 7 in which the structural face material is secured to the opening screw frame 2 3 And the side wall 2 8 are firmly connected to each other through the connecting metal 2 9 so that shearing force can be transmitted. The configurations shown in FIGS. 6 (a), 6 (b), 7 and 8 are used. Figure 4 (b) shows how each wall is displaced when a horizontal force is applied due to an earthquake in the reinforcement structure of the opening wall. In this figure, the hanging wall 2 6, waist wall 2 7, and both side walls 2 8, which are located on the four sides of the opening 8, form a rectangle, and the upper part horizontally moves horizontally with the lower side 30 as the fixed part. When the vertical wall 2 6 and the side wall wall 2 8 and the waist wall 2 7 and the side wall wall 2 8 are firmly joined to each other through the upper and lower connecting hardware 2 9, the conventional opening ( Fig. 4 (a) and Fig. 5 (a)) do not occur. In other words, the vertical wall 2 6 and the waist wall 2 7 and the side walls 2 8 transmit shearing force to each other. At this time, the vertical wall 2 6 and the waist wall 2 7 resist the horizontal force as a shear panel. It functions effectively and contributes to reducing the swing of both side walls 28. Therefore, the rigidity of the side wall 28 is greatly improved.

In Fig. 5 (b), when the lower side 30 is fixed and the upper part moves horizontally from side to side, the hanging wall 2 6 and both side walls 2 8 and the waist wall 2 7 and both side walls 2 The force in the direction of the arrow flows through 8. In other words, the hanging wall 2 6 and the side walls 2 8 and the waist wall 2 7 and the side walls 2 8 Due to the solid connection, the transmission of force changes on the rectangular wall around the opening, and the force flows as indicated by the arrows at the four corners 31. Further, the force of the arrow flows through the side wall 28 in the range sandwiched between the extension line (i) of the lower end edge of the vertical wall 26 and the extension line (i) of the upper end edge of the waist wall 27. Furthermore, the force of the arrow also flows in the plane of the hanging wall 2 6 and the waist wall 2 7.

In this way, the vertical wall 2 6, the waist wall 2 7, and the side walls 2 8 are firmly connected to each other, so that the rectangular wall surface is integrally formed. When moving horizontally, in the rectangular frame, the force flows in the direction of the arrow in the area divided into eight as shown in Fig. 5 (b), and in the adjacent area, the direction of the force is in the opposite direction. Because they cancel each other or weaken each other, the force is not amplified and transmitted to the next compartment. In Fig. 5 (b), the pull-out force is the sum of the arrows within the dotted ellipse (ϋ), but when viewed from the side wall 28, the arrows in Fig. 5 (b) and (a) are compared. As shown, the direction of the force is weakened in the present invention, and the pulling force indicated by the downward arrow on the lower side 30 is weak, and accordingly, the compressive force indicated by the upward arrow on the lower side 30 is also small. I know that

According to the present invention, since the upward force (compression force) and the downward force (pull-out force) are both small, the vertical frame member 2 2 and the vertical frame member 2 a for attaching the lintel support can be reduced in size. In addition, the hole-down hardware for attaching the vertical frame material 2 2. and the vertical frame material 2a to the foundation or the like can be reduced in size because the strength can be small. Furthermore, the anchor for fixing the hole-down hardware to the concrete foundation can also be reduced in size because it can be low in strength.

The detailed structure of the present invention will be described with reference to FIG. 9, FIG. 10 (a), and FIG. 10 (b). In addition, the upper frame material 1 8 for the opening part constituting the four sides of the window 8 b (opening 8), the lower frame material 2 4 for the opening part, and the vertical frame material 2 2 for attaching the lintel The adjacent vertical frame members 2a and the like are the same as those shown in FIGS. 2 (a) and 2 (b). The characteristic configuration of the present invention will be described.

In FIG. 9, FIG. 10 (a), and FIG. 10 (b), the connecting hardware 29 is a reinforcing frame member 2 9 a having the same cross-sectional shape as the opening upper frame member 1 8 and the opening lower frame member 2 4. And a connecting steel member 33 having a predetermined length such as L-shaped steel, and both members are provided on the extension lines of the opening upper frame member 18 and the opening lower frame member 24. Furthermore, the reinforcing frame member 29 a is fixed to the outer side surface (the side surface opposite to the opening 8) of the lintel support mounting vertical frame member 2 2 with a drill screw 23. The connecting steel material 3 3 is inserted through the hole 3 4 formed in the vertical frame material 2 2 for attaching the lintel support, and is extended to substantially the same length from side to side. One end of the connecting steel material 3 3 The side is inserted into the opening upper frame material 18 made of channel steel and the opening lower frame material 24, and the other end is inserted into the reinforcing frame material 29a made of channel steel. ing.

Holes are opened in the connecting steel 3 3 at predetermined intervals, and drill screws 2 3 passed through the holes are placed on the upper and lower surfaces of the upper and lower frame members 1 8, 2 4. The opening upper and lower frame members 1 8 and 2 4 and the reinforcing frame member 29 a are joined via the steel member 3 3 so as not to move laterally.

Since the vertical frame material 2 2 for the lintel support 2 2 has a plurality of holes 3 4 for wiring etc., the hole 3 4 through which the connecting steel 3 3 is inserted also uses one of the wiring holes It is good to do.

After constructing the wall frame material of the opening 8 provided with the reinforcing frame material 2 9 a and the connecting steel material 3 3 (connection hardware 2 9), the vertical wall 2 6 is attached to each frame material around the opening 8. Then, the structural wall material of the waist wall 2 7 and the structural wall material 7 of the side wall wall 28 are applied to construct a wall surface around the opening 8. At this time, the structural face materials of the hanging wall 2 6 and the waist wall 2 7 were fixed to one end side of the connecting steel material 3 3. It is fixed to the upper frame material 1 8 of the opening and the lower frame material 2 4 of the opening with a drill screw 2 3. In addition to being secured to the vertical frame material 2 2 and the adjacent vertical frame material 2 a for the lintel support 2 2 and the adjacent vertical frame material 2 a with the drill screws 2 3, the structural surface material 7 of the side walls 2 8 is connected to the steel material 3 3 It is fixed to the reinforcing frame material 2 9a fixed to the drill screw 2 3 (this portion becomes an increased hitting portion of the drill screw as compared with the conventional one. Therefore, the vertical wall 2 6 and the side walls 2 8 and the waist The wall 2 7 and both side walls 2 8 are connected to each other by the upper and lower connecting hardware 29 so that shear force can be transmitted to each other, and the force transmission path shown in Fig. 5 (b) can be formed. The effect is achieved.

In addition, it is included in the scope of the present invention to appropriately change the design of the configuration shown in each embodiment. For example, the cross-sectional shape and overall structure of the connecting steel material 33 may be other than shown. Each frame member constituting the opening 8 and the hanging wall 26 and the waist wall 2 7 attached to the frame material can be modularized with walls including fittings such as sashes. Industrial applicability

According to the present invention, in the opening wall of the steel house, a connection hardware is provided on the extension of the opening upper frame material and the opening lower frame material, and the both side walls are joined to the connection hardware by a drill screw. The vertical wall, waist wall, and both side walls can be connected via a hardware so that shear force can be transmitted, and when a horizontal force is applied by an earthquake or the like, the vertical wall and the waist wall can function as a resistance wall.

As described above, since the side walls on both sides of the opening, which have been conventionally divided, are connected so as to be able to transmit the shearing force and the rigidity is increased, the horizontal deformation of the side walls is increased as the rigidity of the side walls is increased. Can be suppressed. As a result, the vertical frame material for mounting the lintels on both sides of the opening and The pulling force and compressive force acting on the outer vertical frame member can be reduced. As a result, <1> downsizing the vertical frame material, 2> downsizing the hole-down hardware that fixes each vertical frame material to the foundation, etc. <3> downsizing the anchor that secures the hole-down metal base. Can be achieved. Therefore, the material cost of these members is reduced, and the ease of construction is realized.

Claims

The scope of the claims

1. A vertical frame material for mounting the lintel support that is erected at a predetermined interval between the lower frame material and the upper frame material, and an opening that has both ends fixed to the vertical frame material for both lintel support mounting. The frame material and the lower frame material of the opening constitute the four sides of the opening, and the structural material is fixed to the frame material of each side and the frame material arranged outside each side with a drill screw. In a steel house consisting of a vertical wall, a waist wall, and side walls, and each frame material is made of thin lightweight steel, connecting metal fittings are positioned so as to be located on the extension of the upper frame material of the opening and the lower frame material of the opening. By installing and fixing the side wall to the connection hardware with a drill screw, the vertical wall and the side wall and the waist wall and the side wall are connected to each other via the connection hardware so that shear force can be transmitted to each other. Reinforcement structure of the opening wall in the steel house characterized by

2. The connection hardware includes a reinforcing frame member having substantially the same cross-sectional shape as the opening upper frame member and the opening lower frame member on the extension of the opening upper frame member and the opening lower frame member. By joining the upper frame member and the opening lower frame member, and fixing the side wall to the reinforcing frame member with a drill screw, the vertical wall, the side wall, and the waist wall via the reinforcing frame member The side walls are coupled to each other so as to be able to transmit a shearing force to each other.

The reinforcing structure of the opening wall in the steel house according to 1.

3. The above-mentioned connecting hardware is provided with a reinforcing frame material having substantially the same cross-sectional shape as the upper and lower frame members of the opening portion on the extension of the upper and lower frame members of the opening portion. Passing through the opening hole, one end projecting from the hole is fixed to the upper frame material of the opening and the lower frame material of the opening, and the other end is made of L-shaped steel having a predetermined length fixed to the reinforcing frame material It is composed of a connecting steel material, and a side wall is fixed to the reinforcing frame member with a drill screw, so that a vertical wall and a side wall, and a waist wall and side are interposed via the connecting steel material and the reinforcing frame material. The reinforcing structure of the opening wall in the steel house according to claim 1, wherein the face walls are coupled to each other so as to be able to transmit a shearing force.