JP3888270B2 - Seismic reinforcement frame for openings - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a seismic reinforcement frame for a housing opening having a lintel.
[0002]
[Prior art]
In wooden houses and the like, reinforcements are reinforced with diagonal braces at the necessary points of the frame to prevent deformation of the frame due to earthquakes and the like. The bracing part is a bearing wall that is attached to the wall and is responsible for the structural strength of the building.To provide a window for lighting, etc., an opening is provided separately from that part. A window is attached. The window part is not the part responsible for structural strength, and in order to provide a large opening window part, the seismic strength had to be sacrificed.
[0003]
As a conventional measure for solving this problem, there is a bracing window in which bracing is added to the window frame to reinforce (for example, see Patent Document 1).
[0004]
[Patent Document 1]
JP 61-183594 (page 1-3, Fig. 1-4)
[0005]
[Problems to be solved by the invention]
However, the frame opening of the wooden house is usually divided up and down by the lintel, and even if the bracing window is attached to the opening between the lintel and the base, the portion above the lintel is not reinforced at all, It was not enough for seismic reinforcement. On the other hand, it is not practical to attach another reinforcing frame between the lintel and the torso because the workability is poor. Further, even if the integral reinforcement frame is attached to a place outside the prospective direction of the housing in order to avoid interference with the tuna, effective reinforcement cannot be achieved, and the living space is narrowed. The present invention has been made in view of such circumstances, and can be applied to a large opening housing opening partitioned vertically by a lintel and provide an earthquake-resistant reinforcing frame for an opening that is highly effective in improving earthquake resistance. Objective.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the seismic reinforcement frame for openings according to the present invention is formed in a substantially H shape with left and right saddle members and transverse members, and in a box opening portion in which a lintel is arranged in an intermediate portion in the vertical direction. A base frame disposed; a reinforcing panel disposed above the cross member to reinforce the upper portion of the base frame; and a plurality of diagonal members disposed below the cross member to reinforce the lower portion of the base frame. The left and right frame members are inserted through the cutouts provided on the lintels, and the upper and lower ends are fixed to the frame opening, and the reinforcing panel is fixed to the left and right frame materials and the upper edge of the frame opening. The cross member is located below the lintel, and the diagonal member has one end joined to the intermediate part of the cross member and the other end joined to the intermediate part below the cross member of each saddle member. And the upper right diagonal, and the lower left diagonal and the lower right diagonal with one end joined to the fixing member provided at the lower edge of the housing opening and the other end joined to the intermediate part below the horizontal member of each frame. Characterized in that there.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the seismic reinforcing frame for openings according to the present invention. FIG. 1 is a front view seen from the indoor side, FIG. 2 is a cross-sectional view taken along line AA in FIG. FIG. 4 is a sectional view taken along line BB in FIG. 1, and FIG. 4 is a sectional view taken along line CC in FIG. In this embodiment, the frame opening 3 is constituted by the base 9, the trunk 10 and the two left and right columns 11, 11, and the seismic reinforcement frame of the present invention is installed in the frame opening so that the deformation of the frame due to the earthquake is prevented. It is preventing. A lintel 7 is installed between the pillars 11, the housing opening 3 is vertically divided, and a fitting type sash window 30 is attached to the outdoor side of the housing opening between the lintel 7 and the base 9. It is. The pitch between the columns 11 is 910 mm.
[0008]
The seismic reinforcement frame has a base frame 4 formed in a substantially H shape by two right and left brazing members 1, 1 and one cross member 2, and an upper position of the cross member 2 to reinforce the upper part of the base frame. The reinforcing panel 5 is arranged and a plurality of diagonal members 6a, 6b, 6c, 6d arranged at positions below the cross member 2 in order to reinforce the lower part of the base frame. As shown in FIGS. 2 and 3, the lintel 7 is provided with a cut portion 12 on the indoor side of both ends, and the collar 1 passes through the cut portion 12 and penetrates the lintel 7 up and down. . The lintel 7 is provided with an iron reinforcing plate 13 to prevent the strength from being reduced by the cut portion 12. The cross member 2 is disposed at a position immediately below the lintel 7. For the brazing material 1 and the cross member 2, a hollow extruded shape of an aluminum alloy is used.
[0009]
The brazing material 1 has fixing pieces 14a and 14b extending on the indoor side and the indoor side. As shown in FIG. 4, the brazing material 1 is fixed to the side surface of the column 11 with nails 16 by hitting the batting trees 15a and 15b. Has been. The upper end portion of the saddle member 1 is fixed to the trunk 10 by an L-shaped fixing bracket 17. Moreover, the lower end part of the brazing material 1 is being fixed to the base 9 via the joining metal fittings 18 and 19, as shown in FIG. 5 and FIG. The joining bracket 18 includes a bottom plate 20 and a joint portion 21 having a U-shaped cross section standing on both the left and right sides of the bottom plate, and the bottom plate 20 is fixed to an anchor bolt 22 provided projecting from the base 9 with a nut 35, and the joint portion. The lower end portion of the brazing material 1 is arranged between the two members, and that portion is sandwiched between the two plate-like joining brackets 19 and 19 from the indoor side and the outdoor side, and the bolts and nuts 23a and 23b are inserted through the joining brackets. 18 and 19 and the brazing material 1 are connected and fixed.
[0010]
As shown in FIG. 3, a square member 24 is fixed with bolts and nuts 25 outside the portion above the lintel 7 of the saddle member 1, and the side edge of the reinforcing panel 5 is attached to the square member 24 with a nail 26. It is fixed with. The reinforcing panel 5 is fixed with nails, with the upper edge abutting against the outdoor side surface of the trunk 10.
[0011]
The diagonal member has an upper left diagonal member 6a and an upper right diagonal member 6b in which one end is joined to an intermediate portion of the cross member 2 and the other end is joined to an intermediate portion on the lower side of each cross member 1, and one end of the oblique member 3 The lower left diagonal member 6c and the lower right diagonal member 6d, which are joined to the fixing member 8 provided at the lower edge portion and the other end joined to the intermediate portion below the cross member of each saddle member 1, are provided in total. The diagonals of the above are diamond-shaped when viewed from the front. When the diagonal members are arranged in a diamond shape as described above, there is an effect that the central portion is greatly opened and a good field of view can be secured as compared with the case where the diagonal members are arranged in a general X shape. In addition, since the diagonal members 6a, 6b, 6c, and 6d are short in length and are unlikely to buckle, the effect of preventing the deformation of the base frame 4 is high. Each diagonal member 6a, 6b, 6c, 6d is obtained by fixing a connecting plate 27 to both ends of a rod-shaped member. The saddle member 1, the cross member 2, and the fixing member 8 are formed with slit-like holes in the longitudinal direction for inserting the connecting plate 27 on the inner side surface of the respective intermediate portions, and are reinforced with the connecting plate 27 interposed therebetween. Ribs 28 are provided. As shown in FIG. 4, the diagonal members 6 a, 6 b, 6 c, 6 d are inserted into the brazing material 1 or the like, and bolts and nuts 29 are inserted and tightened as shown in FIG. Etc. If it is joined in such a form, when the vibration is caused by an earthquake, the diagonal member rotates at the end portion and absorbs the vibration, so that the joint portion can be prevented from being damaged. Thus, it is preferable that the diagonal member is joined to the saddle member or the like with its end portion capable of absorbing vibration, and the diagonal member is pivotally attached with a single pin as in this embodiment. The structure is not limited, and may be performed by another structure capable of absorbing vibrations. For example, a structure in which a bolt is removed with a long hole and a washer is used may be used.
[0012]
In this way, the seismic reinforcement frame reinforces the chassis opening part divided vertically by the lintels with an integral base frame, and the base frame frame material is inserted into the lintel cutting part, Since the frame is placed within the width of the housing component in the prospective direction, when separate reinforcement frames are installed above and below the lintel, or when an integral reinforcement frame is installed avoiding interference with the lintel Compared with, the effect of reinforcing the frame is high. In addition, the transverse member of the base frame is arranged at the lower position of the lintel, the upper side of the transverse member is reinforced by the reinforcing panel, and the lower side of the transverse member is reinforced by four diagonal members to reliably prevent the deformation of the base frame. As a result, the earthquake resistance of the building can be effectively improved.
[0013]
Next, the construction procedure of this seismic reinforcement frame will be described. First, the lintel 7 provided with the cut portion 12 is laid between the pillars 11. Next, an H-shaped base frame 4 is constituted by the left and right saddle members 1, 1 and the cross member 2, and a reinforcing panel 5 is attached to the upper part of the base frame 4. Next, the base frame 4 is arranged in the housing opening 3, and the upper end and the lower end of the brazing material 1 are fixed to the trunk 10 and the base 9, respectively, and the wood 15a, 15b is inserted, and the brazing material 1 is nailed to the pillar 11 with a nail. Next, the fixing member 8 is installed on the base 9, and the four diagonal members 6a, 6b, 6c, 6d are attached. Finally, if the upper edge of the reinforcing panel 5 is fixed to the trunk 10 with a nail, the attachment of the seismic reinforcement frame is completed, and then the sash window 30 is attached and the outer wall 31 and the inner wall 32 are constructed as usual. In addition, the code | symbol 33 in a figure is a bundle material which receives wall material.
[0014]
FIG. 7 shows another embodiment of the seismic reinforcement frame of the present invention. Here, two seismic reinforcement frames are installed on both sleeves of a large opening housing opening 3 having a pitch of columns 11 four times that of FIG. 1 (3640 mm), and four on the outdoor side of the housing opening. A built-in differential sash 34 is attached. The structure and construction method of the seismic reinforcement frame are the same as those of the embodiment described above. This seismic reinforcement frame has a high function to improve seismic resistance, and the diagonal materials are arranged in a diamond shape so as not to obstruct the field of view as much as possible. It will be more effective.
[0015]
The seismic reinforcement frame for openings according to the present invention is not limited to the above-described embodiment, and the form of the saddle material, the diagonal material, the structure for fixing them, and the like may be appropriately changed. It is not necessary that the diagonal is arranged in a complete rhombus, but is arranged with an interval between the ends of adjacent diagonals so as to form a hexagonal or octagonal opening when viewed from the front. It may be. The diagonal members arranged in each of the upper, lower, left and right portions are not limited to one, and a plurality of diagonal members may be provided by slightly shifting the position. The scope of application of the present invention is not limited to a wooden house with a frame construction method, and can also be applied to a steel frame opening or the like.
[0016]
【The invention's effect】
The seismic reinforcement frame for openings according to the present invention has an integral base frame disposed in a casing opening partitioned vertically by a lintel, and the base frame piercing material is inserted through the cut out portion of the lintel. The horizontal member is placed at the lower position of the lintel, and the reinforcement panel and the diagonal member are provided on the upper and lower sides of the cross member to prevent the deformation of the base frame, so the function to improve earthquake resistance is excellent. Yes. And since a base frame is comprised integrally and it can construct at once, workability | operativity is favorable. Further, since the diagonal members are arranged obliquely so as to avoid passing through the central portion of the housing opening, it is possible to ensure a good field of view in the housing opening.
[Brief description of the drawings]
FIG. 1 is a room front view showing an embodiment of an earthquake-resistant reinforcing frame for openings according to the present invention.
FIG. 2 is a cross-sectional view taken along the line AA in FIG.
FIG. 3 is a cross-sectional view taken along the line BB in FIG.
4 is a cross-sectional view taken along the line CC in FIG. 1. FIG.
FIG. 5 is an enlarged front view showing a portion for fixing a lower end portion of the saddle material to the base.
6 is a cross-sectional view taken along the line DD in FIG. 5. FIG.
FIG. 7 is a room front view showing another embodiment of the seismic reinforcement frame for openings according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Frame material 2 Horizontal material 3 Frame opening part 4 Base frame 5 Reinforcement panel 6a Upper left diagonal material 6b Upper right diagonal material 6c Lower left diagonal material 6d Lower right diagonal material 7 Crib 8 Fixing member 12 Cutting part

Claims (1)

A base frame that is formed in a substantially H-shape with left and right saddles and crossbars and is arranged in a box opening with a lintel in the middle in the vertical direction. It has a reinforcing panel arranged at a position and a plurality of diagonal members arranged below the cross member to reinforce the lower part of the base frame. The end is fixed to the housing opening, the reinforcing panel is fixed to the left and right housing and the upper edge of the housing opening, the cross member is located below the lintel, and the diagonal is The upper left diagonal and the upper right diagonal with one end joined to the middle part of the cross member and the other end joined to the lower middle part of each cross member, and one end provided at the lower edge of the housing opening An anti-seismic reinforcement frame for openings, comprising a left lower diagonal member and a right lower diagonal member joined to a member and having the other end joined to an intermediate portion below each cross member of the saddle member.

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