JP2005232713A - Seismically strengthening structure for wooden frame housing, and method of seismically strengthening the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seismically strengthening structure for wooden frame housing, which dispenses with necessity not only of temporary living of the residents in separate housing but also of taking-out of furniture from the housing. <P>SOLUTION: The seismically strengthening structure 1 for the wooden frame housing is mounted in a plane of wall structure which is formed of a pair of mutually opposed columns 2, 2, a girth 3 as an upper horizontal member connected to the columns, a sill 4 as a lower horizontal member, and consists of an auxiliary horizontal member 5 arranged under the girth 3, an auxiliary horizontal member 6 arranged above the sill 4, and a face plate 7 having peripheral edges thereof fastened to the columns 2, 2 and the auxiliary horizontal members 5, 6 from the indoor side. Herein the auxiliary horizontal member 6 has both edges thereof nailed to side surfaces of the columns 2, 2, respectively. Then the auxiliary horizontal member 5 is arranged in the vicinity of an edge of a ceiling member set at a location slightly lower than a pole plate and has both edges thereof nailed to the side surfaces of the columns 2, 2, respectively. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a seismic reinforcement structure and method for a wooden framed house.

  Among conventional wooden houses, the conventional frame construction method increases the horizontal rigidity and horizontal strength of the entire house by attaching structural plywood and braces to the pillars such as columns, beams, torches, and foundations to improve earthquake resistance. I am letting.

  Here, over the years since the construction of a new house, the functions of structural plywood and braces as seismic members have deteriorated, and the seismic standards stipulated in the Building Standards Act have become stricter. Even if there is no house, it may be necessary to reinforce it afterwards.

JP-A-9-88211 JP 10-238136 A JP 2002-81133 A

  In such a case, seismic reinforcement such as newly attaching the structural plywood to the above-mentioned shaft assembly, replacing the brace, or newly installing it will be performed. Since it must be removed once, it is often done from the indoor side.

  However, whether it is a structural plywood or a brace, in order to attach them to a horizontal frame, ie a beam, torsion or foundation, the ceiling or floor is removed once to expose the horizontal frame. , After attaching structural plywood and braces to the horizontal member, you must follow the procedure of newly installing the ceiling and floor, and you will be forced to carry out furniture and temporary housing during the construction period It was happening.

  The present invention has been made in consideration of the above-mentioned circumstances, and in retrofitting a wooden framed house, the earthquake resistance of a wooden framed house that can eliminate the need to carry out furniture as well as temporary housing in a separate house. An object is to provide a reinforcing structure and method.

  In order to achieve the above object, the seismic reinforcement structure for a wooden framed housing according to the present invention includes a pair of opposing columns, an upper horizontal member and a lower horizontal member joined to the columns, as described in claim 1. An auxiliary horizontal member is disposed below the upper horizontal member and above the lower horizontal member and is joined to the columns, respectively, in the wall construction surface comprising the pair of columns and the auxiliary horizontal material. A predetermined face material is attached from the indoor side so as to fasten the periphery.

  In the seismic reinforcement structure for a wooden framed housing according to the present invention, the auxiliary horizontal member is an auxiliary horizontal member made of a plurality of pieces, and both ends of the auxiliary horizontal member stand between the pair of columns. These are joined to the pillars or the studs so as to be in contact with the side faces of the studs provided and have the same installation height.

  Further, the seismic reinforcement structure for a wooden frame house according to the present invention is formed by cutting out the indoor side surface of the studs erected between the pair of columns to form a fitting recess, and the auxiliary horizontal frame is provided in the fitting recess. The material is fitted.

  Further, the seismic reinforcement method for a wooden frame house according to the present invention is a wall construction surface comprising a pair of opposing columns, an upper horizontal member and a lower horizontal member joined to the columns. Inside, a plurality of pieces of auxiliary horizontal members are provided below the upper horizontal member and above the lower horizontal member, and both ends of the auxiliary horizontal members are brought into contact with the side surfaces of the intermediate columns provided between the pair of columns. So that the installation height is all the same, and then the predetermined surface material is placed on the indoor side so that the peripheral edge is fastened to the pair of pillars and the auxiliary horizontal member. It is to be attached from.

  In the wooden frame structure, columns, beams, trunks, foundations, etc. are the frames of the house. Therefore, as a general rule, earthquake-resistant members for enhancing the earthquake resistance of the house are attached to these frames. There must be.

  Therefore, the above-mentioned problems occur, but the present applicants are not able to perform seismic reinforcement of houses without attaching seismic members to horizontal members in the framework of the structure. As a result of various researches, we succeeded in retrofitting a house without attaching a seismic member to the horizontal member.

  That is, in the seismic strengthening structure of the wooden framed housing according to claim 1, the auxiliary horizontal bridge is provided below the upper horizontal member such as a beam and a trunk and above the lower horizontal member such as a base, a beam and a trunk. Each material is arranged, and a predetermined face material is attached from the indoor side so that the peripheral edge is fastened to these auxiliary horizontal members and a pair of pillars.

  Therefore, although the face material is not attached to the horizontal member, both sides are fastened to the pair of pillars with screws, and the upper and lower parts are fastened to the auxiliary horizontal member with screws, etc. A strong seismic wall will be constructed together with the columns and auxiliary horizontal members.

  And it is sufficient to arrange the auxiliary horizontal member for fastening the face material below the upper horizontal member and above the lower horizontal member, so it is not necessary to remove the ceiling or floor to attach the face material. .

  For the auxiliary horizontal member and the face member, the size, thickness, or material of the cross section may be appropriately selected so that the seismic wall can be formed together with the column.

  Here, in the wall cross section, there is usually a case where a pillar for attaching the inner wall material is juxtaposed with a predetermined horizontal distance between the upper horizontal member and the lower horizontal member, although no load is borne. It is.

  In such a case, if the inter-column is left as it is, it interferes with the auxiliary horizontal member, so that a single auxiliary horizontal member cannot be directly transferred between a pair of opposing columns. Auxiliary horizontal member made of the above-mentioned auxiliary horizontal member so that both ends of the auxiliary horizontal member are in contact with the side surfaces of the intermediate pillars erected between the pair of columns and the installation heights are all the same. By joining each of the pillars or the inter-columns, the same structure as that obtained when a single auxiliary horizontal member is bridged between a pair of opposing pillars can be obtained.

  That is, in the above-described configuration, the auxiliary horizontal member is installed so as to be sandwiched between the studs, but the auxiliary horizontal member composed of a plurality of pieces is joined to the side surfaces of the columns and the studs and is all the same. Although it is installed at a height, it is apparently divided into studs, but is structurally integrated with the studs sandwiched between them. Therefore, in terms of horizontal rigidity and earthquake horizontal force, it can perform the same function as a single auxiliary horizontal member.

  On the other hand, if the inter-column is left as it is, it interferes with the auxiliary horizontal member, so it is not possible to bridge the single auxiliary horizontal member directly between the pair of opposing columns, but it stands between the pair of columns. If the inner side surface of the intermediate pillar is cut out to form a fitting recess, and the auxiliary horizontal member is fitted into the fitting concave portion, a single auxiliary horizontal member can be bridged between a pair of columns. it can.

  Incidentally, since the stud is not a member for transmitting a load, there is no inconvenience even if a notch is provided for providing an auxiliary horizontal member.

  In the seismic strengthening method for a wooden framed housing according to the present invention, first, the upper horizontal frame is formed in a wall surface composed of a pair of opposing columns and an upper horizontal member and a lower horizontal member joined to the columns. The auxiliary horizontal member made of a plurality of pieces below the material and above the lower horizontal member so that both ends of the auxiliary horizontal member are in contact with the side surface of the intermediate column erected between the pair of columns and the installation height Are joined to the columns or the inter-columns so that they are all the same.

  Next, a predetermined face material is attached to the pair of pillars and the auxiliary horizontal member from the indoor side so that a peripheral edge is fastened with a screw or the like. It can be fastened to the studs as needed.

  In this case, although the face material is not attached to the horizontal member, both sides are fastened to the pair of pillars with screws, and the upper and lower parts are fastened to the auxiliary horizontal member with screws. Therefore, a strong earthquake-resistant wall is constituted with the pillar and the auxiliary horizontal member.

  And it is sufficient to arrange the auxiliary horizontal member for fastening the face material below the upper horizontal member and above the lower horizontal member, so it is not necessary to remove the ceiling or floor to attach the face material. .

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a seismic reinforcement structure and method for a wooden frame house according to the present invention will be described with reference to the accompanying drawings. Note that components that are substantially the same as those of the prior art are assigned the same reference numerals, and descriptions thereof are omitted.
(First embodiment)

  FIG. 1 is an exploded perspective view showing a seismic reinforcement structure for a wooden frame house according to the present embodiment. As shown in the figure, the seismic reinforcement structure 1 for a wooden framed housing according to the present embodiment includes a pair of opposing columns 2 and 2, a trunk 3 as an upper horizontal member joined to the columns, and a lower horizontal frame. In the wall construction surface composed of the base 4 as a frame member, auxiliary horizontal members 5 and 6 are respectively arranged below the trunk 3 and above the base 4 to join both ends to the pillars 2 and 2, The face material 7 is attached from the indoor side so that the peripheral edge is fastened to the columns 2 and 2 and the auxiliary horizontal members 5 and 6.

  The face material 7 can be appropriately selected from those marketed as a load bearing face material. For example, a face material marketed under the name “Dielite” from Daiken Kogyo Co., Ltd. can be used.

  In any case, the size, thickness, or material of the cross section of the auxiliary horizontal members 5 and 6 and the face material 7 may be appropriately selected so that a seismic wall can be formed together with the column 2.

  FIG. 2 is a vertical cross-sectional view of the seismic reinforcement structure of a wooden frame house according to the present embodiment. A joist 11 is bridged on the base 4 and a flooring 12 is laid thereon. However, the auxiliary horizontal member 6 is installed in the vicinity of the edge of the flooring 12, that is, at an upper position of the base 4, and both ends thereof are joined to the side surfaces of the columns 2 and 2 by nail fastening. The material 5 is disposed in the vicinity of the edge of the ceiling material 13 installed at the lower position of the eaves girder 3, and both ends thereof are joined to the side surfaces of the columns 2 and 2 by nail fastening.

  As described above, the peripheral surface of the face material 7 is fastened to the pair of pillars 2 and 2 and the auxiliary horizontal members 5 and 6 with screws 8. It is fastened to the auxiliary horizontal member 5 and the lower edge is fastened to the auxiliary horizontal member 6.

  In order to perform seismic retrofitting work using the seismic retrofit method for a wooden framed housing according to the present embodiment, first, a pair of opposing columns 2 and 2, a trunk 3 joined to the columns, and a base 4 are provided. Within the wall construction surface, auxiliary horizontal members 5 and 6 are placed below the trunk 3 and above the base 4 respectively to the columns 2 and 2 so that both ends thereof are in contact with the side surfaces of the pair of columns 2 and 2. Join.

  Here, when the heat insulating material is filled or arranged in the wall construction surface, the auxiliary horizontal members 5 and 6 may be arranged so as to be pushed in or appropriately cut out. Prior to performing such seismic reinforcement work, all existing inner wall materials are removed in advance.

  Next, the face material 7 is applied to the pair of columns 2 and 2 and the auxiliary horizontal members 5 and 6 from the indoor side, and the peripheral edges thereof are fastened to the columns and auxiliary horizontal members with screws 8.

  Next, an interior finishing material is applied to the face material 7 as necessary, and a baseboard is attached to the joint portion between the face member 7 and the floor material 12, and a ceiling peripheral edge is attached to the joint portion with the ceiling material 13.

  In this way, the face material 7 is not attached to the body 3 and the base 4 which are horizontal members, but both sides are screwed to the pair of columns 2 and 2 and the upper and lower sides are auxiliary horizontal members. Since it is screwed to the materials 5 and 6, a strong earthquake-resistant wall is formed together with the columns 2 and 2 and the auxiliary horizontal members 5 and 6.

  As described above, according to the seismic reinforcement structure and method of a wooden framed housing according to the present embodiment, the face material 7 has the side edges on the pair of columns 2 and 2 and the upper edge on the auxiliary horizontal material. 5, the lower edges are fixed to the auxiliary horizontal members 6, respectively, and together with the columns 2, 2 and the auxiliary horizontal members 5, 6 constitute a strong earthquake-resistant wall.

  And the auxiliary horizontal members 5 and 6 for fastening the face material 7 are disposed below the trunk 3 which is the upper horizontal member and above the base 4 which is the lower horizontal member as can be seen in FIG. All you need is enough.

  Therefore, it is not necessary to remove the ceiling material 13 and the floor material 12 in order to attach the face material 7, and it becomes unnecessary to carry out furniture as well as temporary housing in a separate house.

  Although not particularly mentioned in the present embodiment, the span (horizontal distance) between the pillars 2 and 2 may be large, and it may be difficult to mount with a single face member 7. In such a case, as shown in FIG. 3, the auxiliary vertical member 21 is joined in advance between the auxiliary horizontal members 5 and 6, and the two face members 7 and 7 are connected to the column 2 and the auxiliary member. What is necessary is just to each install so that it may fasten to the horizontal members 5 and 6 and the auxiliary vertical member 21. In this case, it is preferable to attach the face materials 7 and 7 so that the abutting portions of the face materials 7 and 7, that is, the side edges of the face materials 7 and 7 substantially coincide with the center line of the auxiliary vertical member 21. .

  Here, although the auxiliary vertical member 21 is not a structural member that bears a load, it is commonly used as a member that fastens the edges of the two face members 7 and 7 that are installed to face each other.

That is, the auxiliary vertical member 21 plays a role as a so-called joining member that integrates the face members 7 and 7, the columns 2 and 2, and the auxiliary horizontal members 5 and 6 into a panel shape to increase horizontal rigidity. .
(Second Embodiment)

  When removing the studs for reasons such as reinventing the insulation work at the time of seismic reinforcement work, it is necessary to re-install the studs as long as the face material 7 is attached to the pillars 2 and 2 and the auxiliary horizontal members 5 and 6. Disappears.

  In the above-described first embodiment, such a situation is assumed, and there is no inter-column between the columns 2 and 2, but in this embodiment, the inter-column is left and the present invention is left. An example of performing seismic reinforcement will be described. Note that components that are substantially the same as those of the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 4 is an exploded perspective view showing the seismic reinforcement structure of the wooden framed housing according to the present embodiment. As shown in the figure, the seismic reinforcement structure 31 of the wooden framed housing according to this embodiment is a pair of opposing columns 2 and 2 and an upper horizontal member joined to the columns, as in the first embodiment. Auxiliary horizontal members 5a and 6a are respectively arranged below the trunk 3 and above the base 4 in the wall construction surface composed of the trunk 3 and the base 4 as the lower horizontal member. Further, the face material 7 is attached from the indoor side so as to fasten the peripheral edge to the auxiliary horizontal members 5a and 6a. However, in this embodiment, the auxiliary horizontal member 5a is constituted by a plurality of pieces, and both ends thereof are paired. The pillars 2 and 2 are joined to the pillars 2 and 32 so as to be in contact with the side surfaces of the pillars 32 erected between the pillars 2 and 2 and to have the same installation height. The same applies to the auxiliary horizontal member 6a so that both ends of a plurality of pieces constituting the auxiliary horizontal member are brought into contact with the side surface of the intermediate column 32 erected between the pair of columns 2 and 2; It is joined to the column 2 or the inter-column 32 so that the installation heights are all the same.

  Although explanation about the face material 7 is omitted, the thickness, the size of the cross section, or the material is appropriately selected so that the seismic wall can be configured together with the auxiliary horizontal members 5a and 6a and the column 2.

  Here, the auxiliary horizontal member 6 a is arranged in the vicinity of the edge of the flooring 12, that is, at an upper position of the base 4, and both ends thereof are joined to the side surfaces of the pillar 2 or the intermediate pillar 32 by nail fastening, similarly to the auxiliary horizontal member 6. It is. Further, the auxiliary horizontal member 5 a is arranged in the vicinity of the edge of the ceiling material 13 installed at the lower position of the eaves girder 3, and the both ends of the auxiliary horizontal member 5 a are nailed to the side surface of the column 2 or the intermediate column 32. It is joined by a stop.

  As described above, the peripheral surface of the face member 7 is fastened to the pair of columns 2 and 2 and the auxiliary horizontal members 5a and 6a with screws 8, and the upper edge thereof is particularly fastened to the auxiliary horizontal member 5a. The lower edge is fastened to the auxiliary horizontal member 6a.

  That is, in the above-described configuration, the auxiliary horizontal members 5a and 6a are installed so as to be sandwiched between the inter-columns 32, but the auxiliary horizontal members 5a and 6a made of a plurality of pieces are the pillars 2 and the inter-columns 32. Are installed at the same height so that they are apparently divided into the inter-columns 32, but the inter-columns 32 are composed of the face members 7, 7, the columns 2, 2, and the auxiliary horizontal members 5a, 6a. It becomes a so-called joining member that enhances the horizontal rigidity by integrating them into a panel shape, and can perform the same function as the auxiliary horizontal members 5 and 6 in terms of horizontal rigidity and earthquake horizontal force.

  In order to perform seismic retrofitting work using the seismic retrofit method for a wooden framed housing according to the present embodiment, first, a pair of opposing columns 2 and 2, a trunk 3 joined to the columns, and a base 4 are provided. In the wall construction surface, the side surfaces of the intermediate pillar 32 in which the auxiliary horizontal members 5a and 6a made of a plurality of pieces are provided below the trunk 3 and above the base 4 and both ends thereof are erected between the pair of pillars 2 and 2. Are joined to the pillar 2 or the intermediate pillar 32 so that the installation heights are all the same.

  Here, when the heat insulating material is filled or arranged in the wall construction surface, the auxiliary horizontal members 5a and 6a may be arranged so as to be pushed in, or appropriately cut out. Prior to performing such seismic reinforcement work, all existing inner wall materials are removed in advance.

  Next, the two face members 7 and 7 are applied to the pair of columns 2 and 2 and the auxiliary horizontal members 5a and 6a from the indoor side, and the peripheral edges thereof are fastened to the columns and auxiliary horizontal members with screws 8.

  Next, if necessary, interior finishing materials are applied to the face materials 7, 7, baseboards are provided at the locations where the face materials 7 and the floor materials 12 are joined, and ceiling edges are provided at the locations where the ceiling materials 13 are joined. Install.

  In this case, although the face material 7 is not attached to the trunk 3 or the base 4 which is a horizontal member, both sides are screwed to the pillar 2 and the intermediate pillar 32, and the upper and lower parts are auxiliary horizontal members. Since it is screwed to 5a and 6a, a strong earthquake-resistant wall will be comprised with pillars 2 and 2 and auxiliary horizontal members 5a and 6a.

  As explained above, according to the seismic reinforcement structure and method of the wooden framed housing according to the present embodiment, the face material 7 has both side edges at the columns 2 and 32 and the upper edge at the auxiliary horizontal member 5a. In addition, the lower edges are fixed to the auxiliary horizontal members 6a, respectively, and together with the columns 2 and 2 and the auxiliary horizontal members 5a and 6a, a strong earthquake-resistant wall is formed.

  And it is sufficient if the auxiliary horizontal members 5a and 6a for fastening the face material 7 are arranged below the trunk 3 which is the upper horizontal member and above the base 4 which is the lower horizontal member.

  Therefore, it is not necessary to remove the ceiling material 13 and the floor material 12 in order to attach the face material 7, and it becomes unnecessary to carry out furniture as well as temporary housing in a separate house.

  In the present embodiment, the auxiliary horizontal members 5a and 6a are formed of a plurality of pieces, and both ends of the auxiliary horizontal members 5a and 6a are brought into contact with the side surface of the intermediate pillar 32 erected between the pair of pillars 2 and 2, and the installation height is increased. However, instead of such a configuration, as shown in FIGS. 5 and 6, the interior side surface of the intermediate pillar 32 is cut away to form a fitting recess 41. If the auxiliary horizontal members 5 and 6 described in the first embodiment are fitted into the fitting recesses, a single auxiliary horizontal member can be bridged between the pair of columns 2 and 2.

  Incidentally, since the spacer 32 is not a member for transmitting a load, there is no problem even if the fitting recess 41 is provided for fitting the auxiliary horizontal members 5 and 6.

  Next, a verification test for demonstrating the action and effect of the present invention was conducted, and the outline and results will be described below.

  In the verification test, in order to confirm the effect of the auxiliary horizontal member, a test body without the auxiliary horizontal member and a test body provided with the auxiliary horizontal member are manufactured, and a horizontal alternating load is applied to each test body. Thus, the load-deformation relationship was investigated.

ここで、上段に記載したDmk-UNは補助横架材がない試験体、下段に記載したDmk-UAは補助横架材がある試験体の仕様を示す。なお、同表中に記載された受け材は、本発明の補助横架材に相当する。 Table 1 shows the specifications of the specimen.

Here, Dmk-UN shown in the upper part shows the specification of the test body without the auxiliary horizontal member, and Dmk-UA shown in the lower part shows the specification of the test body with the auxiliary horizontal member. The receiving material described in the table corresponds to the auxiliary horizontal member of the present invention.

  Moreover, the front view, horizontal sectional view, and right side view of the test body are shown in FIG. In FIG. 7, FIG. 7 (a) shows a test body without an auxiliary horizontal member, and FIG. 7 (b) shows a test body with an auxiliary horizontal member.

  A weight of 2000 N / m (3640 N in total) was placed on such a test body, imitating the actual building load, and in this state, the force cycle shown in FIG. In the force cycle, a horizontal load was applied to the beam of the specimen (see FIG. 7).

  FIG. 8 (b) shows the result of the loading test with the horizontal axis representing the deformation angle (mrad) and the vertical axis representing the load (kN), and the receiving material described in the graph is the present invention. It corresponds to the auxiliary horizontal member. In the figure, the results of the loading test for each of the three test specimens are averaged and plotted with and without the auxiliary horizontal member.

  From the result of the loading test, when the auxiliary horizontal member is provided, the horizontal rigidity is increased and the horizontal proof stress is 12.5 kN, which is about 1 than the horizontal proof force 7.5 kN when the auxiliary horizontal member is not provided. It was found to increase significantly by 6 times.

  Moreover, when the wall magnification was calculated according to Article 46, Paragraph 4, Table 1 (C) of the Building Standards Act, the case without the auxiliary horizontal member was 1.1, whereas the auxiliary horizontal member was provided. In this case, it was 1.6, which was about 1.5 times larger than that without the auxiliary horizontal member.

The disassembled perspective view of the earthquake-proof reinforcement structure of the wooden frame house which concerns on 1st Embodiment. The detailed vertical sectional view of the earthquake-proof reinforcement structure of the wooden frame house which concerns on 1st Embodiment. The disassembled perspective view of the earthquake-proof reinforcement structure of the wooden frame house which concerns on a modification. The disassembled perspective view of the earthquake-proof reinforcement structure of the wooden frame house which concerns on 2nd Embodiment. The disassembled perspective view of the earthquake-proof reinforcement structure of the wooden frame house which concerns on a modification. Similarly detailed perspective view. It is the figure which showed the front view of a test body, a horizontal sectional view, and a right side view, (a) is a test body without an auxiliary horizontal member, (b) is a view of a test body with an auxiliary horizontal member . The figure which showed the result of the loading test.

Explanation of symbols

1,31 Seismic reinforcement structure for wooden framed housing 2 Pillar 3 Torso (upper horizontal member)
4 Foundation (Lower horizontal member)
5, 6, 5a, 6a Auxiliary horizontal member 7 Face material

Claims (4)

Auxiliary horizontal members are placed below the upper horizontal member and above the lower horizontal member, respectively, in a wall structure composed of a pair of opposing columns and an upper horizontal member and a lower horizontal member joined to the columns. A seismic resistance of a wooden framed house, which is arranged and joined to each of the pillars, and a predetermined face member is attached to the pair of pillars and the auxiliary horizontal member from the indoor side so as to fasten the periphery. Reinforced structure. The auxiliary horizontal member is an auxiliary horizontal member made of a plurality of pieces, and the auxiliary horizontal member is installed such that both ends thereof are in contact with the side surface of the intermediate column erected between the pair of columns. The seismic reinforcement structure for a wooden framed housing according to claim 1, wherein the seismic reinforcing structure is joined to the pillars or the inter-columns so that the lengths are all the same. 2. The wooden framed housing according to claim 1, wherein a side wall on the indoor side of the intermediary column erected between the pair of columns is cut out to form a fitting recess, and the auxiliary horizontal member is fitted into the fitting recess. Seismic reinforcement structure. Auxiliary horizontal composed of a plurality of pieces below the upper horizontal member and above the lower horizontal member in the wall construction surface composed of a pair of opposing columns and an upper horizontal member and a lower horizontal member joined to the columns. Each of the frames is joined to the pillars or the intermediate pillars so that both ends thereof are in contact with the side surfaces of the intermediate pillars erected between the pair of pillars and the installation heights are all the same. A seismic reinforcement method for a wooden framed house comprising attaching a predetermined face material from the indoor side so as to fasten a peripheral edge to the pair of pillars and the auxiliary horizontal member.

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