JP7189004B2 - Seismic reinforcement wall structure - Google Patents

Seismic reinforcement wall structure Download PDF

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JP7189004B2
JP7189004B2 JP2018238423A JP2018238423A JP7189004B2 JP 7189004 B2 JP7189004 B2 JP 7189004B2 JP 2018238423 A JP2018238423 A JP 2018238423A JP 2018238423 A JP2018238423 A JP 2018238423A JP 7189004 B2 JP7189004 B2 JP 7189004B2
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pillars
receiving rail
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JP2020100960A (en
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亮二 足立
正晴 西田
由美子 岸
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Sumitomo Forestry Co Ltd
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特許法第30条第2項適用 ・スミリン ハイパーパネル工法(仮称) 技術評価資料(平成30年7月2日 住友林業ホームテック株式会社申請)Application of Article 30, Paragraph 2 of the Patent Act ・Sumirin Hyper Panel Construction Method (provisional name) Technical evaluation data (Applied on July 2, 2018 by Sumitomo Forestry Home Tech Co., Ltd.)

本発明は、耐震補強壁構造に関し、特に、隣接する一対の柱と、上段横架材及び下段横架材とを含む壁躯体を、天井材及び床材を残置したまま補強可能にする耐震補強壁構造に関する。 The present invention relates to an earthquake-resistant reinforced wall structure, and in particular, an earthquake-resistant reinforcement that enables reinforcement of a wall frame including a pair of adjacent pillars and upper and lower horizontal members while leaving the ceiling and floor materials in place. Regarding wall construction.

わが国では、東日本大震災や阪神淡路大震災等の大規模な地震が頻発しており、今後も、例えば東海地震、東南海地震、南海地震等の大規模な地震の発生が予測されることから、特に都市部における木造建築物等の建物に対して、耐震改修を行うことが要望されている。 In Japan, large-scale earthquakes such as the Great East Japan Earthquake and the Great Hanshin-Awaji Earthquake have frequently occurred. There is a demand for seismic retrofitting of buildings such as wooden buildings in urban areas.

また、建物を効果的に耐震改修するための方法として、隣接する一対の柱と、上段横架材及び下段横架材とを含む壁躯体を耐震補強することが提案されており、壁躯体を耐震補強する場合に、天井材と床材とを残置したまま、屋内での作業によって、効率良く施工できるようにした耐震補強構造も開発されている(例えば、特許文献1参照)。 In addition, as a method for effective seismic retrofitting of a building, it has been proposed to seismically reinforce the wall frame, which includes a pair of adjacent pillars and upper and lower horizontal members. There has also been developed an earthquake-resistant reinforcement structure that can be efficiently constructed indoors while leaving ceiling materials and floor materials when performing earthquake-resistant reinforcement (see, for example, Patent Document 1).

特開2005-232713号公報JP-A-2005-232713

特許文献1に記載された木造住宅の耐震補強構造では、隣接する一対の柱と、上段横架材及び下段横架材とを含む壁躯体において、一対の柱の間に架け渡して、上段横架材の下方に間隔をおいて天井材の縁部近傍に上段の補助横架材を取り付けると共に、下段横架材の上方に間隔をおいて床材の縁部近傍に下段の補助横架材を取り付けておき、これらの一対の柱と上下の補助横架材とに周縁部を留め付けるようにして、室内側から補強面材を取り付けることによって、天井材や床材を撤去することなく、壁躯体を耐震補強できるようになっている。 In the earthquake-resistant reinforcement structure of a wooden house described in Patent Document 1, in a wall frame including a pair of adjacent pillars, an upper horizontal member and a lower horizontal member, the upper horizontal member is bridged between the pair of pillars. Attach the upper auxiliary horizontal beam near the edge of the ceiling material with a space below the beam, and install the lower auxiliary horizontal beam near the edge of the floor material with a space above the lower horizontal beam. are installed, and by fixing the peripheral edge to these pair of pillars and the upper and lower auxiliary horizontal members, a reinforcing panel is attached from the inside of the room, without removing the ceiling material and floor material. The wall frame can be seismically reinforced.

しかしながら、特許文献1に記載された耐震補強構造では、天井材の上方の天井懐の部分において、壁躯体の上段横架材とこれの下方に配置された上段の補助横架材との間には、相当の大きさの開口部分が残ったままの状態となっていると共に、また床材の下方の部分において、壁躯体の下段横架材とこれの上方に配置された下段の補助横架材との間には、相当の大きさの開口部分が残ったままの状態となっており、地震荷重を受けた際に、柱の中間部分の上段の補助横架材や下段の補助横架材との接合部に曲げモーメントが生じることになるため、柱の中間部分に曲げモーメントが生じることを前提とする設計を行う必要があるといった設計上の運用ルールの制約を受けることになると共に、高耐力の耐震補強壁が得られるように設計することが難しくなる。 However, in the seismic reinforcement structure described in Patent Document 1, in the ceiling pocket portion above the ceiling material, between the upper horizontal member of the wall frame and the upper auxiliary horizontal member arranged below it In addition, in the lower part of the floor material, the lower horizontal beam of the wall frame and the lower auxiliary horizontal beam placed above it A considerable size of the opening remains between the pillars and the pillars. Since a bending moment will be generated at the joint with the material, it will be subject to design operation rules such that it is necessary to design on the premise that a bending moment will be generated in the middle part of the column. It becomes difficult to design a seismically reinforced wall with high strength.

本発明は、天井材や床材を撤去することなく、屋内からの作業によって効率良く耐震補強できると共に、柱の中間部分に曲げモーメントが生じることを前提とする設計を行う必要があるといった設計上の運用ルールによる制約を受けることになく、高耐力の耐震補強壁を容易に設計することのできる耐震補強壁構造を提供することを目的とする。 In the present invention, it is possible to efficiently reinforce earthquake resistance by working indoors without removing ceiling materials and floor materials, and it is necessary to design on the premise that a bending moment is generated in the middle part of the column. To provide an anti-seismic reinforced wall structure capable of easily designing an anti-seismic reinforced wall with high bearing strength without being restricted by the operation rules of .

本発明は、隣接する一対の柱と、これらの一対の柱に跨るようにして上端部及び下端部に架け渡された上段横架材及び下段横架材とを含む壁躯体を、天井材及び床材を残置したまま屋内からの作業によって補強可能にする耐震補強壁構造であって、壁躯体における天井材の下方に間隔をおいて、一対の前記柱の間に架け渡されて取り付けられた上部受け桟と、床材の上方に間隔をおいて、両側の一対の前記柱の間に架け渡されて取り付けられた下部受け桟と、天井材と前記上部受け桟との間の間隔部分における、前記上部受け桟と一対の前記柱との角部内側部分の各々に、両端部が前記上部受け桟と前記柱とに接合されて取り付けられた上部コーナー金物と、床材と前記下部受け桟との間の間隔部分における、前記下部受け桟と一対の前記柱との角部内側部分の各々に、両端部が前記下部受け桟と前記柱とに接合されて取り付けられた下部コーナー金物と、天井材及び床材との間の部分において、一対の前記柱に架け渡されて取り付けられると共に、上端部が前記上部受け桟に接合され、下端部が前記下部受け桟に接合された矩形形状の補強面材とを含んで構成されており、前記上部コーナー金物及び下部コーナー金物は、金属プレートを用いて形成され、等脚台形形状の連結プレート部と、該連結プレート部の両側の斜辺部から当該連結プレート部に対して折り曲げられた、一対の接合プレート部とを備えていると共に、該一対の接合プレート部は、各々、くの字の断面形状を備えるように折り曲げられており、連結プレート部に対して斜めに傾斜する基端部側の部分に、金物止め用ビスを締着させるための締着孔が複数貫通形成されている耐震補強壁構造を提供することにより、上記目的を達成したものである。 The present invention provides a wall frame that includes a pair of adjacent pillars, and an upper horizontal member and a lower horizontal member that span the upper and lower ends of the pair of pillars. A seismically reinforced wall structure that can be reinforced by work from indoors while leaving the flooring material in place, and is mounted across the pair of pillars below the ceiling material in the wall frame with a gap. In the space between the upper receiving rail, the lower receiving rail mounted between the pair of pillars on both sides with a space above the floor material, and the ceiling material and the upper receiving rail , an upper corner metal fitting attached to each inner corner portion of the upper support rail and the pair of pillars with both ends joined to the upper support rail and the pillar; a flooring material and the lower support rail; a lower corner metal fitting attached to each of the inner corner portions of the lower receiving bar and the pair of pillars in the space between In the portion between the ceiling material and the floor material, a rectangular rectangular shape is attached by spanning the pair of pillars, the upper end is joined to the upper receiving bar, and the lower end is joined to the lower receiving bar. The upper corner metal fittings and the lower corner metal fittings are formed using metal plates, and are composed of isosceles trapezoidal connecting plate portions and oblique side portions on both sides of the connecting plate portions. a pair of joint plate portions bent with respect to the connection plate portion, each of the pair of joint plate portions being bent so as to have a doglegged cross-sectional shape; The above object is achieved by providing an anti-seismic reinforcement wall structure in which a plurality of fastening holes for fastening metal fitting screws are formed through a portion on the base end side that is obliquely inclined with respect to the part. It is what I did.

そして、本発明の耐震補強壁構造は、前記壁躯体の内側が、前記上段横架材と前記下段横架材との間に架け渡された間柱によって、複数の壁区画に仕切られており、各々の壁区画において、前記上部受け桟及び前記下部受け桟が、両側の柱又は間柱の間に同じ高さで架け渡されて取り付けられており、前記上部受け桟と前記柱又は前記間柱との角部内側部分の各々に、両端部が前記上部受け桟と前記柱又は前記間柱とに接合されて、前記上部コーナー金物が取り付けられており、前記下部受け桟と前記柱又は前記間柱との角部内側部分の各々に、両端部が前記下部受け桟と前記柱又は前記間柱とに接合されて、前記下部コーナー金物が取り付けられていることが好ましい。 In the earthquake-resistant reinforced wall structure of the present invention, the inside of the wall frame is partitioned into a plurality of wall sections by studs spanning between the upper horizontal member and the lower horizontal member, In each wall section, the upper bracer and the lower bracer are mounted so as to span between the pillars or studs on both sides at the same height, and the upper bracer and the pillar or the stud are attached. The upper corner hardware is attached to each of the corner inner portions with both ends joined to the upper receiving rail and the pillar or stud, and the corner between the lower receiving rail and the pillar or stud is attached. Preferably, the lower corner hardware is attached to each of the inner parts, with both ends joined to the lower receiving rails and the pillars or studs.

また、本発明の耐震補強壁構造は、前記補強面材が、上下方向に分割された複数枚の単位補強面材を、上下方向に連設配置して形成されており、上下に隣接する前記単位補強面材は、これらの上端部又は下端部が、一対の前記柱に架け渡されたつなぎ桟に接合されていることで、該つなぎ桟を介して複数枚の前記単位補強面材が一体となった前記補強面材が形成されている。 Further, in the earthquake-resistant reinforced wall structure of the present invention, the reinforcing face member is formed by vertically arranging a plurality of vertically divided unit reinforcing face members in a row, and the vertically adjacent above-mentioned The upper or lower ends of the unit reinforcing face members are joined to a connecting bar that spans the pair of pillars, so that the plurality of unit reinforcing face members are integrated via the connecting bar. The reinforcing face member is formed as follows.

本発明の耐震補強壁構造によれば、天井材や床材を撤去することなく、屋内からの作業によって効率良く耐震補強できると共に、柱の中間部分に曲げモーメントが生じることを前提とする設計を行う必要があるといった設計上の運用ルールによる制約を受けることになく、高耐力の耐震補強壁を容易に設計することができる。 According to the seismic reinforcement wall structure of the present invention, earthquake resistance can be reinforced efficiently by working indoors without removing the ceiling material and floor material, and the design is based on the premise that a bending moment is generated in the middle part of the column. It is possible to easily design a seismically reinforced wall with high bearing strength without being restricted by design operation rules such as the need to carry out.

(a)は、本発明の好ましい一実施形態に係る耐震補強壁構造の構成を説明する室内側から見た正面図、(b)は、(a)のA-Aに沿った断面図である。(a) is a front view seen from the inside of a room explaining the configuration of an earthquake-resistant reinforced wall structure according to a preferred embodiment of the present invention, and (b) is a cross-sectional view taken along line AA of (a). . (a)は、本発明の好ましい一実施形態に係る耐震補強壁構造の構成を説明する、図1(b)のB部拡大図、(b)は、図1(b)のC部拡大図である。(a) is an enlarged view of part B in FIG. 1(b), and (b) is an enlarged view of part C in FIG. is. (a)は、上部コーナー金物及び下部コーナー金物の正面図、(b)は側面図である。(a) is a front view of an upper corner metal fitting and a lower corner metal fitting, and (b) is a side view. 本発明の好ましい一実施形態に係る耐震補強壁構造の構成を説明する、補強面材を取り付ける前の状態の正面図である。It is a front view of the state before attaching a reinforcement face material explaining the composition of the earthquake-resistant reinforcement wall structure concerning one preferred embodiment of the present invention. (a)、(b)は、本発明の好ましい他の実施形態に係る耐震補強壁構造の構成を説明する、補強面材を取り付ける前の状態の正面図である。(a), (b) is a front view of the state before attaching a reinforcement face material explaining the structure of the earthquake-resistant reinforcement wall structure based on other preferable embodiment of this invention.

本発明の好ましい一実施形態に係る耐震補強壁構造10は、建物として、例えば軸組構法による2階建ての木造の住宅建築物において、図1に示すように、隣接する一対の柱31と、これらの一対の柱31に跨るようにして上下に架け渡された上段横架材32及び下段横架材33とを含む壁躯体30に対して、天井材34と床材35とを残置したまま、屋内での作業によって、効率良く耐震補強できるようにする補強用の壁構造として採用されたものである。本実施形態では、上段横架材32は、建物の1階部分については2階の床梁、建物の2階部分については小屋梁となっており、下段横架材33は、建物の1階部分については土台、2階部分については床梁となっている。本実施形態の耐震補強壁構造10は、特に、天井材34及び床材35を撤去しないことで開口部分となっている、壁躯体30における、天井材34と上段横架材32との間の天井懐30aや、床材35と下段横架材33との間の床下間隔部30bに対しても、天井材34及び床材35を残置したままの状態で効果的に補強できるようにして、柱の中間部分に曲げモーメントが生じることを前提とする設計を行う必要があるといった設計上の運用ルールによる制約を受けることになく、また好ましくは上段横架材32の下方や下段横架材33の上方に既存の金物や配管、配線等の施工上の障害物がある場合にこれらの障害物による制約を受けることなく、高耐力の耐震補強壁を容易に設計できるようにする機能を備えている。 As shown in FIG. 1, the quake-resistant reinforced wall structure 10 according to a preferred embodiment of the present invention is a building, for example, a two-story wooden residential building based on the frame construction method. The ceiling material 34 and the floor material 35 are left on the wall frame 30 including the upper horizontal member 32 and the lower horizontal member 33 that are vertically bridged over the pair of pillars 31. It was adopted as a reinforcing wall structure that enables efficient seismic reinforcement by indoor work. In this embodiment, the upper horizontal beams 32 are floor beams of the second floor for the first floor of the building, and roof beams for the second floor of the building, and the lower horizontal beams 33 are the first floor of the building. The part is the foundation, and the second floor part is the floor beam. In the earthquake-resistant reinforced wall structure 10 of the present embodiment, in particular, the opening between the ceiling material 34 and the upper horizontal beam 32 in the wall skeleton 30 is formed by leaving the ceiling material 34 and the floor material 35 unremoved. The ceiling pocket 30a and the space under the floor 30b between the floor material 35 and the lower horizontal member 33 can be effectively reinforced while the ceiling material 34 and the floor material 35 are left as they are. Without being restricted by design operation rules such as the need to design on the premise that a bending moment is generated in the middle part of the column, and preferably below the upper horizontal member 32 or the lower horizontal member 33 Equipped with a function that facilitates the design of high-strength earthquake-resistant reinforced walls without being restricted by these obstacles when there are obstacles such as existing hardware, piping, wiring, etc. there is

そして、本実施形態の耐震補強壁構造10は、図1(a)、(b)に示すように、隣接する一対の柱31と、これらの一対の柱31に跨るようにして上端部及び下端部に架け渡された上段横架材32及び下段横架材33とを含む壁躯体30を、天井材34及び床材35を残置したまま屋内からの作業によって補強可能にする耐震補強壁構造であって、壁躯体30における天井材34の下方に間隔をおいて、一対の柱31の間に架け渡されて取り付けられた上部受け桟15と、床材35の上方に間隔をおいて、両側の一対の柱31の間に架け渡されて取り付けられた下部受け桟20と、天井材34と上部受け桟15との間の間隔部分における上部受け桟15と一対の柱31との角部内側部分の各々に、両端部が上部受け桟15と柱31とに接合されて取り付けられた上部コーナー金物16と、床材35と下部受け桟20との間の間隔部分における下部受け桟20と一対の柱31との角部内側部分の各々に、両端部が下部受け桟と柱31とに接合されて取り付けられた下部コーナー金物22と、天井材34及び床材35との間の部分において、一対の柱31に架け渡されて取り付けられると共に、上端部が上部受け桟15に接合され、下端部が下部受け桟20に接合された矩形形状の補強面材17とを含んで構成されている。 As shown in FIGS. 1(a) and 1(b), the earthquake-resisting reinforced wall structure 10 of this embodiment includes a pair of adjacent pillars 31 and upper and lower end portions straddling the pair of pillars 31. An earthquake-resistant reinforced wall structure that enables reinforcement of a wall frame 30 including an upper horizontal member 32 and a lower horizontal member 33 that are bridged over a section by work from indoors while leaving the ceiling material 34 and the floor material 35 as they are. There is a space below the ceiling material 34 in the wall frame 30, and an upper receiving beam 15 attached by spanning between a pair of pillars 31, and a space above the floor material 35, both sides and the inner corner of the upper receiving bar 15 and the pair of pillars 31 in the space between the ceiling material 34 and the upper receiving bar 15. Each of the sections has a pair of upper corner fittings 16 attached at both ends joined to the upper receiving rail 15 and the pillar 31, and a lower receiving rail 20 at the interval between the floor material 35 and the lower receiving rail 20. In the portion between the lower corner hardware 22 attached to each of the inner corners of the pillar 31 with both ends joined to the lower receiving rail and the pillar 31, and the ceiling material 34 and the floor material 35, It includes a rectangular reinforcing panel 17 which is mounted across a pair of pillars 31 and whose upper end is joined to the upper receiving bar 15 and whose lower end is joined to the lower receiving bar 20. .

また、本実施形態の耐震補強壁構造10は、好ましくは、壁躯体30の内側は、上段横架材32と下段横架材33との間に架け渡された間柱36によって、複数の壁区画37に仕切られており、各々の壁区画37において、上部受け桟15及び下部受け桟20が、両側の柱31又は間柱36の間に同じ高さで架け渡されて取り付けられており、上部受け桟15と柱31又は間柱36との角部内側部分の各々に、両端部が上部受け桟15と柱31又は間柱36とに接合されて、上部コーナー金物16が取り付けられており、下部受け桟20と柱31又は間柱36との角部内側部分の各々に、両端部が下部受け桟20と柱31又は間柱36とに接合されて、下部コーナー金物22が取り付けられている。 In addition, in the earthquake-resistant reinforced wall structure 10 of the present embodiment, preferably, the inner side of the wall frame 30 is divided into a plurality of wall sections by studs 36 spanned between the upper horizontal member 32 and the lower horizontal member 33. 37, and in each wall section 37, an upper receiving rail 15 and a lower receiving rail 20 are mounted so as to span between the pillars 31 or studs 36 on both sides at the same height. An upper corner metal fitting 16 is attached to each inner corner portion of the rail 15 and the column 31 or the stud 36, with both ends joined to the upper receiving rail 15 and the column 31 or the stud 36, and a lower receiving rail. A lower corner hardware 22 is attached to each inner corner portion of 20 and post 31 or stud 36 with both ends joined to lower receiving rail 20 and post 31 or stud 36 .

さらに、本実施形態の耐震補強壁構造10は、好ましくは、補強面材17は、上下方向に分割された複数枚の単位補強面材17aを、上下方向に連設配置して形成されており、上下に隣接する単位補強面材17aは、これらの上端部又は下端部が、一対の柱31に架け渡されたつなぎ桟21に接合されていることで、つなぎ桟21を介して複数枚の単位補強面材17aが一体となった補強面材17が形成されている。 Further, in the quake-resistant reinforced wall structure 10 of the present embodiment, preferably, the reinforcement panel 17 is formed by vertically arranging a plurality of vertically divided unit reinforcement panels 17a. , the upper and lower end portions of the unit reinforcing surface members 17a adjacent to each other are joined to a connecting bar 21 that spans a pair of pillars 31, so that a plurality of reinforcing members 17a are joined via the connecting bar 21. A reinforcing face member 17 is formed by integrating the unit reinforcing face members 17a.

本実施形態では、耐震補強される壁躯体30は、例えば建物の1階部分を構成する壁躯体となっており、上段横架材32は、例えば横幅が105mm程度、縦幅が180mm程度の大きさの角形断面を有する木製の角材からなる2階部分の床梁となっている。下段横架材33は、例えば縦横105mm程度の大きさの角形断面を有する木製の角材からなる土台となっており、一対の柱31は、例えば縦横105mm程度の大きさの角形断面を有する木製の角材からなり、上段横架材32を下方から支持するようにして下段横架材33から立設して設けられている。上段横架材32と下段横架材33とは、縦方句に2730mm程度の中心間間隔をおいて、横方向に平行に延設して配置されていると共に、一対の柱31は、横方向に1820mm程度の中心間間隔をおいて、縦方向に平行に延設して配置されることによって、壁躯体30の骨組み構造が形成されている。 In this embodiment, the wall frame 30 to be reinforced against earthquakes is, for example, a wall frame that constitutes the first floor of the building, and the upper horizontal beam 32 is large, for example, about 105 mm in width and about 180 mm in length. The floor beams on the second floor are made of wooden square timbers with a rectangular cross section. The lower horizontal member 33 serves as a base made of a wooden square timber having a rectangular cross section of about 105 mm in length and width, for example. It is made of a rectangular material, and erected from the lower horizontal member 33 so as to support the upper horizontal member 32 from below. The upper horizontal member 32 and the lower horizontal member 33 are arranged so as to extend in parallel in the horizontal direction with a center-to-center interval of about 2730 mm in the vertical direction. The frame structure of the wall skeleton 30 is formed by arranging them so as to extend parallel to the longitudinal direction with a center-to-center interval of about 1820 mm in the direction.

また、本実施形態では、天井材34は、上段横架材32の下端部から例えば85mm程度下がった位置に配置されており、これによって壁躯体30における天井材34の上方には、上段横架材32との間に開口部分となっている天井懐30aが形成さている。床材35は、下段横架材33の上端部から例えば85mm程度上がった位置に配置されており、これによって壁躯体30における床材35の下方には、下段横架材33との間に、開口部分となっている床下間隔部30bが形成さている。なお、補強面材17の高さは、上段横架材32から下段横架材33までの内法に対し、80%以上の高さを有していることが好ましい。 Further, in this embodiment, the ceiling material 34 is arranged at a position about 85 mm lower than the lower end of the upper horizontal member 32, so that above the ceiling material 34 in the wall skeleton 30, the upper horizontal member 34 is placed. A ceiling pocket 30a which is an opening is formed between the material 32 and the material 32. - 特許庁The floor material 35 is arranged at a position, for example, about 85 mm higher than the upper end of the lower horizontal member 33, so that below the floor material 35 in the wall frame 30, between the lower horizontal member 33, An underfloor interval portion 30b is formed as an opening. The height of the reinforcement panel 17 is preferably 80% or more of the inner height from the upper horizontal member 32 to the lower horizontal member 33 .

さらに、本実施形態では、上述のように、壁躯体30の内側は、上段横架材32と下段横架材33との間に架け渡された複数本(本実施形態では3本)の間柱36によって、複数(本実施形態では4箇所)の壁区画37に仕切られている。間柱36は、例えば30mm×60mmの木製の角材からなり、上端部を上段横架材32の下面に、下端部を下段横架材33の上面に各々接合することで、一対の柱31の間に、これらと平行に立設して、例えば450~460mm程度の中心間ピッチとなるように取り付けられている。これによって、壁躯体30の内側は、4箇所の壁区画37に仕切られる。 Furthermore, in the present embodiment, as described above, the inner side of the wall frame 30 includes a plurality of (three in this embodiment) studs that are bridged between the upper horizontal member 32 and the lower horizontal member 33. 36 are divided into a plurality of (four in this embodiment) wall sections 37 . The studs 36 are made of, for example, 30 mm x 60 mm wooden rectangular timbers. In addition, they are erected in parallel with these and attached so as to have a center-to-center pitch of, for example, about 450 to 460 mm. Thereby, the inside of the wall frame 30 is partitioned into four wall sections 37 .

本実施形態では、壁躯体30の上端部分に、天井材34の下方に間隔をおいて取り付けられる上部受け桟15は、例えば30mm×105mmの木製の板材からなり、壁躯体30における隣接する2箇所の壁区画37にまたがる長さを有している。上部受け桟15は、左右両側の各隣接する2箇所の壁区画37において、例えば天井材34の下方に例えば65~115mm程度の間隔をおいて、柱31と中央部の間柱36との間に、表面が柱31や間柱36の表面と面一になるよう嵌め込むようにして装着されると共に(図1(b)、図2(a)、図4参照)、壁区画37の内側から、上部受け桟15の端部を貫通させて、柱31や間柱36の側面に向けて、固定部材として例えばコーススレッド38(図4参照)を、複数本斜めに打ち込むことによって、柱31や間柱36に一体として固定することができる。 In this embodiment, the upper receiving beams 15 attached to the upper end portion of the wall frame 30 at intervals below the ceiling material 34 are made of, for example, 30 mm × 105 mm wooden plate material, and are located at two adjacent locations on the wall frame 30. It has a length spanning the wall section 37 of . The upper receiving beams 15 are placed below the ceiling material 34 at intervals of, for example, about 65 to 115 mm between the pillars 31 and the central studs 36 in the two adjacent wall sections 37 on the left and right sides. , are fitted so that their surfaces are flush with the surfaces of the pillars 31 and studs 36 (see FIGS. 1(b), 2(a), and 4), and the upper receiving part is mounted from the inside of the wall section 37. A plurality of coarse threads 38 (see FIG. 4) as fixing members are obliquely driven through the ends of the beams 15 toward the side surfaces of the pillars 31 and studs 36, so that they are integrated with the pillars 31 and studs 36. can be fixed as

ここで、柱31と中央部の間柱36と間に配置される一対の中間部の間柱36には、上部受け桟15の取り付け位置と対応する高さ位置の表面側に、上部受け桟15の厚さに相当する深さの切欠きを適宜設けておくことにより、上部受け桟15との干渉を回避することが可能になる。一対の上部受け桟15は、同じ高さで架け渡されていることにより、一対の柱31の間に、中央部の間柱36を介在させつつ連続した状態で架け渡されることになる。 Here, on the pair of intermediate studs 36 arranged between the pillar 31 and the central stud 36, the upper receiving rail 15 is attached to the surface side of the height position corresponding to the mounting position of the upper receiving rail 15. Interference with the upper receiving bar 15 can be avoided by appropriately providing a notch with a depth corresponding to the thickness. Since the pair of upper receiving bars 15 are bridged at the same height, they are bridged continuously between the pair of pillars 31 with the central stud 36 interposed therebetween.

また、本実施形態では、壁躯体30の下端部分に、床材35の上方に間隔をおいて取り付けられる下部受け桟20は、上部受け桟15と同様に、例えば30mm×105mmの木製の板材からなり、壁躯体30における隣接する2箇所の壁区画37にまたがる長さを有している。下部受け桟20は、左右両側の各隣接する2箇所の壁区画37において、例えば床材35の下方に例えば65~115mm程度の間隔をおいて、柱31と中央部の間柱36との間に、表面が柱31や間柱36の表面と面一になるよう嵌め込むようにして装着されると共に(図1(b)、図2(b)、図4参照)、壁区画37の内側から、下部受け桟20の端部を貫通させて、柱31や間柱36の側面に向けて、固定部材として例えばコーススレッド38(図4参照)を、複数本斜めに打ち込むことによって、柱31や間柱36に一体として固定することができる。 Further, in this embodiment, the lower receiving rails 20 attached to the lower end portion of the wall frame 30 above the floor material 35 at intervals are made of, for example, a 30 mm x 105 mm wooden board, similar to the upper receiving rails 15. It has a length spanning two adjacent wall sections 37 in the wall frame 30 . The lower receiving beams 20 are placed below the floor material 35 at two adjacent wall sections 37 on the left and right sides, for example, at intervals of, for example, about 65 to 115 mm, between the pillars 31 and the central studs 36. , are fitted so that their surfaces are flush with the surfaces of the pillars 31 and studs 36 (see FIGS. 1(b), 2(b), and 4), and from the inside of the wall section 37, the lower receiving A plurality of coarse threads 38 (see FIG. 4) as fixing members are obliquely driven through the ends of the crosspieces 20 toward the side surfaces of the pillars 31 and studs 36, so that they are integrated with the pillars 31 and studs 36. can be fixed as

ここで、柱31と中央部の間柱36と間に配置される一対の中間部の間柱36には、下部受け桟20の取り付け位置と対応する高さ位置の表面側に、上部受け桟15の場合と同様に、下部受け桟20の厚さに相当する深さの切欠きを適宜設けておくことにより、下部受け桟20との干渉を回避することが可能になる。一対の下部受け桟20は、同じ高さで架け渡されていることにより、一対の柱31の間に、中央部の間柱36を介在させつつ連続した状態で架け渡されることになる。 Here, on the pair of intermediate studs 36 arranged between the pillar 31 and the central stud 36, the upper receiving rail 15 is attached to the surface side of the height position corresponding to the mounting position of the lower receiving rail 20. As in the case, by appropriately providing a notch with a depth corresponding to the thickness of the lower receiving bar 20, interference with the lower receiving bar 20 can be avoided. Since the pair of lower receiving bars 20 are bridged at the same height, they are bridged continuously between the pair of pillars 31 with the central stud 36 interposed therebetween.

さらに、本実施形態では、壁躯体30を上下方向に3分割する位置に、好ましくは上部受け桟15や下部受け桟20と平行に配置して、2本のつなぎ桟21が、一対の柱31の間に架け渡すようにして取り付けられている。つなぎ桟21は、上部受け桟15や下部受け桟20と同様に、例えば30mm×105mmの木製の板材からなり、壁躯体30における隣接する2箇所の壁区画37にまたがる長さを有している。つなぎ桟21は、左右両側の各隣接する2箇所の壁区画37において、上部受け桟15と下部受け桟20との間隔部分を上下方向に3分割する高さ位置に配置されて、柱31と中央部の間柱36との間に、表面が柱31や間柱36の表面と面一になるように嵌め込むようにして装着されると共に(図1(b)、図2(b)、図4参照)、壁区画37の内側から、つなぎ桟21の端部を貫通させて、柱31や間柱36の側面に向けて、固定部材として例えばコーススレッド38(図4参照)を、複数本斜めに打ち込むことによって、柱31や間柱36に一体として固定することができる。 Furthermore, in this embodiment, the wall frame 30 is vertically divided into three parts, preferably parallel to the upper receiving bar 15 and the lower receiving bar 20, so that the two connecting bars 21 are connected to the pair of pillars 31. It is installed so as to bridge between Like the upper receiving bar 15 and the lower receiving bar 20, the connecting bar 21 is made of, for example, a 30 mm x 105 mm wooden board, and has a length that spans two adjacent wall sections 37 in the wall skeleton 30. . The connecting bar 21 is arranged at a height position that vertically divides the space between the upper receiving bar 15 and the lower receiving bar 20 into three in the two adjacent wall sections 37 on the left and right sides. It is fitted between the center stud 36 so that the surface is flush with the surfaces of the pillar 31 and the stud 36 (see FIGS. 1(b), 2(b), and 4). A plurality of course threads 38 (see FIG. 4) as fixing members, for example, are diagonally driven into the side surfaces of the pillars 31 and studs 36 from the inside of the wall section 37 by penetrating the ends of the connecting bars 21. can be fixed to the pillar 31 or the stud 36 integrally.

ここで、柱31と中央部の間柱36との間に配置される中間部の間柱36には、つなぎ桟21の取り付け位置と対応する高さ位置の表面側に、上部受け桟15や下部受け桟20の場合と同様に、つなぎ桟21の厚さに相当する深さの切欠きを適宜設けておくことにより、つなぎ桟21との干渉を回避することが可能になる。一対のつなぎ桟21は、同じ高さで架け渡されていることにより、一対の柱31の間に、中央部の間柱36を介在させつつ連続した状態で架け渡されることになる。 Here, on the intermediate stud 36 arranged between the pillar 31 and the central stud 36, the upper receiving rail 15 and the lower receiving rail are provided on the surface side of the height position corresponding to the mounting position of the connecting rail 21. As in the case of the crosspiece 20, it is possible to avoid interference with the crosspiece 21 by appropriately providing a notch having a depth corresponding to the thickness of the crosspiece 21. - 特許庁Since the pair of connecting bars 21 are bridged at the same height, they are bridged continuously between the pair of pillars 31 with the central stud 36 interposed therebetween.

上部受け桟15と一対の柱31との角部内側部分の各々取り付けられる上部コーナー金物16は、図3(a)、(b)に示すように、例えば2mm程度の厚さの金属プレートを用いて形成されており、等脚台形形状の連結プレート部16aと、連結プレート部16aの両側の斜辺部から当該連結プレート部16aに対して折り曲げられた、一対の接合プレート部16bとを備えている。一対の接合プレート部16bは、各々、くの字の断面形状を備えるように折り曲げられており、連結プレート部16aに対して斜めに傾斜する基端部側の部分に、金物止め用ビスを締着させるための締着孔16cが複数貫通形成されている。 As shown in FIGS. 3(a) and 3(b), the upper corner metal fittings 16 attached to the inner corners of the upper receiving bar 15 and the pair of pillars 31 are metal plates having a thickness of about 2 mm, for example. and is provided with an isosceles trapezoidal connection plate portion 16a and a pair of joint plate portions 16b bent from oblique side portions on both sides of the connection plate portion 16a to the connection plate portion 16a. . Each of the pair of joint plate portions 16b is bent to have a doglegged cross-sectional shape. A plurality of fastening holes 16c for fastening are formed therethrough.

上部コーナー金物16は、本実施形態では、各々の壁区画37の上端部分における、上部受け桟15の上辺部と一対の柱31又は間柱36との両側の角部内側部分の各々に、両端部の接合プレート部16bを沿わせると共に、上部受け桟15と柱31又は間柱36とに向けて、締着孔16cを介して金物止め用ビスを打ち込んで締着固定することにより、これらの角部内側部分に強固に取り付けることができる。金物止め用ビスを締着させるための締着孔16cが、接合プレート部16bの斜めに傾斜する基端部側の部分に形成されていることにより、金物止め用ビスを、上部受け桟15や柱31や間柱36に対して斜め方向に打ち込ませることが可能になるので、金物止め用ビスを打ち込む際に、上部受け桟15と柱31や間柱36に割れが生じることになるのを、効果的に回避することが可能になる。 In this embodiment, the upper corner hardware 16 is provided at each of the corner inner portions on both sides of the upper side portion of the upper receiving rail 15 and the pair of posts 31 or studs 36 at the upper end portion of each wall section 37 . Along with the joint plate portion 16b of the corner portion 16b, the corner portion It can be firmly attached to the inner part. The fastening hole 16c for fastening the metal fitting screw is formed in the obliquely inclined base end side portion of the joining plate portion 16b, so that the metal fitting screw can be attached to the upper receiving bar 15 or the Since it is possible to drive in the pillars 31 and the studs 36 in an oblique direction, it is possible to prevent cracks from occurring in the upper receiving rail 15 and the pillars 31 and the studs 36 when driving the hardware fixing screws. can be effectively avoided.

下部受け桟20と一対の柱31との角部内側部分の各々取り付けられる下部コーナー金物22は、上部コーナー金物16と同様に、図3(a)、(b)に示すように、例えば2mm程度の厚さの金属プレートを用いて形成されており、等脚台形形状の連結プレート部22aと、連結プレート部22aの両側の斜辺部から当該連結プレート部22aに対して折り曲げられた、一対の接合プレート部22bとを備えている。一対の接合プレート部22bは、各々、くの字の断面形状を備えるように折り曲げられており、連結プレート部22aに対して斜めに傾斜する基端部側の部分に、金物止め用ビスを締着させるための締着孔22cが複数貫通形成されている。 The lower corner metal fittings 22 attached to the inner corner portions of the lower receiving bar 20 and the pair of pillars 31 are, like the upper corner metal fittings 16, about 2 mm, for example, as shown in FIGS. isosceles trapezoidal connecting plate portion 22a and a pair of joints bent from oblique side portions on both sides of the connecting plate portion 22a to the connecting plate portion 22a. and a plate portion 22b. Each of the pair of joint plate portions 22b is bent to have a doglegged cross-sectional shape. A plurality of fastening holes 22c for fastening are formed therethrough.

下部コーナー金物22は、各々の壁区画37の下端部分における、下部受け桟20の下辺部と一対の柱31又は間柱36との両側の角部内側部分の各々に、両端部の接合プレート部22bを沿わせると共に、下部受け桟20と柱31又は間柱36とに向けて、締着孔22cを介して金物止め用ビスを打ち込んで締着固定することにより、これらの角部内側部分に強固に取り付けることができる。金物止め用ビスを締着させるための締着孔22cが、接合プレート部22bの斜めに傾斜する基端部側の部分に形成されていることにより、金物止め用ビスを、下部受け桟20や柱31や間柱36に対して斜め方向に打ち込ませることが可能になるので、金物止め用ビスを打ち込む際に、下部受け桟20や柱31や間柱36に割れが生じることになるのを、効果的に回避することが可能になる。 The lower corner metal fittings 22 are attached to the inner corners of the lower side of the lower receiving rail 20 and the pair of posts 31 or studs 36 at the lower end of each wall section 37, respectively. along with the lower receiving rail 20 and the pillar 31 or the stud 36, by driving a metal fitting screw through the fastening hole 22c and fastening it firmly to the inside part of these corners can be installed. The fastening hole 22c for fastening the metal fitting screw is formed in the obliquely inclined base end side portion of the joining plate portion 22b, so that the metal fitting screw can be attached to the lower receiving bar 20 or the Since it is possible to drive in the pillar 31 and the stud 36 in an oblique direction, it is possible to prevent cracks from occurring in the lower receiving rail 20, the pillar 31 and the stud 36 when driving the hardware fixing screw. can be effectively avoided.

本実施形態では、一対の柱31に架け渡されて取り付けられる補強面材17は、図1(a)、(b)に示すように、建築用の耐力面材として知られる公知の各種の板状部材を用いることができる。本実施形態では、補強面材17として、好ましくは石膏ボードを用いることができ、より具体的には、例えば12.5mm程度の厚さの硬質石膏ボードを用いることができる。補強面材17は、床材35から天井材34までの高さと同様の、例えば2400mm程度の縦幅を有すると共に、両側の一対の柱31の中心間の間隔と同様の、例えば1820mm程度の横幅を有する、矩形形状に形成されている。 In this embodiment, as shown in FIGS. 1(a) and 1(b), the reinforcing panel 17 mounted across the pair of pillars 31 is made of various known plates known as load bearing panels for construction. A shaped member can be used. In this embodiment, a gypsum board can be preferably used as the reinforcing face member 17, and more specifically, a hard gypsum board having a thickness of about 12.5 mm, for example, can be used. The reinforcing panel 17 has a vertical width of, for example, about 2400 mm, which is the same as the height from the floor material 35 to the ceiling material 34, and a horizontal width of, for example, about 1820 mm, which is the same as the distance between the centers of the pair of pillars 31 on both sides. is formed in a rectangular shape.

補強面材17は、両側の一対の柱31の間に架け渡された、上述の上部受け桟15に、天井材34の下方の部分において上端部が一体として接合されると共に、両側の一対の柱31の間に架け渡された、下部受け桟20に、床材35の上方の部分において下端部が一体として接合される。 The reinforcing panel 17 is integrally joined at its upper end to the above-described upper receiving beam 15, which is bridged between the pair of pillars 31 on both sides, at the lower portion of the ceiling member 34, and is connected to the pair of pillars 31 on both sides. The lower end portion of the upper portion of the floor material 35 is integrally joined to the lower receiving beam 20 that is bridged between the pillars 31 .

また、本実施形態では、補強面材17は、上述にように、好ましくは上下方向に分割された複数枚(本実施形態では3枚)の単位補強面材17aを、上下方向に連設配置して形成されている。上下に隣接する単位補強面材17aは、これらの上端部又は下端部が、両側の一対の柱31の間に架け渡された、上述のつなぎ桟21に各々接合されていることで、これらのつなぎ桟21を介して、3枚の単位補強面材17aが一体となった補強面材17が形成されるようになっている。 Further, in the present embodiment, as described above, the reinforcing surface member 17 preferably includes a plurality of vertically divided unit reinforcing surface members 17a (three in this embodiment) arranged continuously in the vertical direction. It is formed by The upper and lower end portions of the vertically adjacent unit reinforcing surface members 17a are respectively joined to the above-described connecting bars 21 bridged between the pair of pillars 31 on both sides. A reinforcing face member 17 is formed by integrating three unit reinforcing face members 17a via a connecting bar 21. - 特許庁

本実施形態の耐震補強壁構造10により、屋内からの作業によって既存の壁躯体30を耐震補強するには、先ず天井材34及び床材35を残置したまま、天井材34と床材35との間の部分の壁仕上げ材や壁下地材等を撤去して、両側の一対の柱31を、これらの内側に配置された、壁躯体30の内側を4箇所の壁区画37に仕切る3本の間柱36と共に露出させる。 In order to seismically reinforce the existing wall frame 30 by working indoors with the earthquake-resistant reinforced wall structure 10 of the present embodiment, first, the ceiling material 34 and the floor material 35 are left as they are. After removing the wall finishing material, wall base material, etc. between the parts, the pair of pillars 31 on both sides are replaced by three partitions that divide the inside of the wall skeleton 30 into four wall sections 37. It is exposed together with the studs 36 .

しかる後に、図4に示すように、壁躯体30の上端部分に、上述のようにして、屋内からの作業によって、天井材34の下方に所定の間隔をおいて一対の上部受け桟15を、一対の柱31の間に同じ高さで架け渡すようにして連続させて取り付けると共に、天井材34と、天井材34の下方に取り付けられた上部受け桟15との間の間隔部分を利用して、各々の壁区画37における、上部受け桟15の上端面と一対の柱31又は間柱36の側面との両側の角部内側部分に、上部コーナー金物16を取り付ける。 After that, as shown in FIG. 4, a pair of upper support beams 15 are placed at the upper end of the wall frame 30 at a predetermined interval below the ceiling material 34 by working from inside the building as described above. It is continuously mounted between a pair of pillars 31 so as to be bridged at the same height, and the space between the ceiling material 34 and the upper receiving beam 15 mounted below the ceiling material 34 is utilized. , The upper corner fittings 16 are attached to the inner corner portions of both the upper end surface of the upper receiving beam 15 and the side surfaces of the pair of posts 31 or studs 36 in each wall section 37 .

また、壁躯体30の下端部分に、上述のようにして、屋内からの作業によって、床材35の上方に所定の間隔をおいて一対の下部受け桟20を、一対の柱31の間に同じ高さで架け渡すようにして連続させて取り付けると共に、床材35と、床材35の上方に取り付けられた下部受け桟20との間の間隔部分を利用して、各々の壁区画37における、下部受け桟20の下端面と一対の柱31又は間柱36の側面との両側の角部内側部分に、下部コーナー金物22を取り付ける。 Also, at the lower end of the wall frame 30, a pair of lower receiving beams 20 are placed above the floor material 35 at a predetermined interval between the pair of pillars 31 by work from indoors as described above. In each wall section 37, by using the gap between the floor material 35 and the lower receiving beam 20 attached above the floor material 35, while continuously installing it so as to bridge it at a height, Lower corner fittings 22 are attached to inner corner portions on both sides of the lower end face of the lower receiving bar 20 and the side faces of the pair of pillars 31 or studs 36 .

さらに、壁躯体30を上下方向に3分割する上下2段の位置に、上述のようにして、屋内からの作業によって、各々2本のつなぎ桟21を、一対の柱31の間に同じ高さで架け渡すようにして連続させて取り付ける。 Furthermore, two connecting bars 21 are placed at the same height between the pair of pillars 31 by work from indoors, as described above, at the upper and lower two stages that divide the wall frame 30 into three in the vertical direction. and install them continuously.

これらの上部受け桟15、下部受け桟20、つなぎ桟21、上部コーナー金物16、及び下部コーナー金物22を、屋内からの作業によって、天井材34と床材35とを残置したまま取り付けたら、同様に屋内からの作業によって、図1(a)、(b)に示すように、天井材34と床材35との間の部分において、補強面材17を、一対の柱31に架け渡たすと共に、上端部を上部受け桟15に、下端部を下部受け桟20に接合することによって取り付ける。また、本実施形態では、補強面材17は、上述のように、上下方向に3分割された3枚の単位補強面材17aを上下方向に連設配置して形成されており、上下に隣接する単位補強面材17aは、これらの上端部又は下端部がつなぎ桟21に各々接合されていることで、3枚の単位補強面材17aが一体となった補強面材17が形成されるようになっている。 When these upper receiving bars 15, lower receiving bars 20, connecting bars 21, upper corner metal fittings 16, and lower corner metal fittings 22 are installed from indoors while leaving the ceiling material 34 and the floor material 35, the same operation is performed. 1(a) and 1(b), the reinforcement panel 17 is bridged over the pair of pillars 31 in the portion between the ceiling material 34 and the floor material 35 by work from indoors. At the same time, the upper end is joined to the upper receiving bar 15 and the lower end is joined to the lower receiving bar 20 for attachment. In addition, in the present embodiment, as described above, the reinforcing surface member 17 is formed by vertically arranging three unit reinforcing surface members 17a that are vertically divided into three pieces, and are vertically adjacent to each other. The upper and lower end portions of the unit reinforcing surface members 17a are respectively joined to the connecting bars 21 so that the reinforcing surface members 17 in which the three unit reinforcing surface members 17a are integrated are formed. It has become.

すなわち、上段の単位補強面材17aは、上端部の裏面側を上部受け桟15の表面側に当接させ、両側の側端部の裏面側を一対の柱31の表面側に各々当接させ、下端部の裏面側を上段のつなぎ桟21の表面側に当接させた状態で、例えば表面側からこれらの上部受け桟15や柱31やつなぎ桟21に向けて複数の固定ビスを打ち込むことによって強固に固定して、壁躯体30に取り付けることができる。中段の単位補強面材17aは、上端部の裏面側を上段のつなぎ桟21の表面側に当接させ、両側の側端部の裏面側を一対の柱31の表面側に各々当接させ、下端部の裏面側を下段のつなぎ桟21の表面側に当接させた状態で、例えば表面側からこれらのつなぎ桟21や柱31に向けて複数の固定ビスを打ち込むことによって強固に固定して、壁躯体30に取り付けることができる。下段の単位補強面材17aは、上端部の裏面側を下段のつなぎ桟21の表面側に当接させ、両側の側端部の裏面側を一対の柱31の表面側に各々当接させ、下端部の裏面側を下部受け桟20の表面側に当接させた状態で、例えば表面側からこれらのつなぎ桟21や柱31や下部受け桟20に向けて複数の固定ビスを打ち込むことによって強固に固定して、壁躯体30に取り付けることができる。これらによって、3枚の単位補強面材17aが一体となった補強面材17が、天井材34と床材35との間の部分において、一対の柱31に架け渡されて取り付けられることになる。 That is, the upper unit reinforcing surface member 17a has the back side of the upper end in contact with the front side of the upper receiving bar 15, and the back side of both side ends with the front side of the pair of pillars 31, respectively. , in a state in which the back side of the lower end portion is in contact with the surface side of the upper connecting bar 21, for example, a plurality of fixing screws are driven from the surface side toward the upper receiving bar 15, the column 31, and the connecting bar 21. can be firmly fixed and attached to the wall frame 30. The back side of the upper end portion of the middle unit reinforcing surface member 17a is brought into contact with the front side of the upper connecting bar 21, and the back side of both side end portions is brought into contact with the front side of the pair of pillars 31, respectively. In a state in which the back side of the lower end portion is in contact with the surface side of the connecting bar 21 in the lower stage, for example, a plurality of fixing screws are driven from the surface side toward the connecting bar 21 and the pillar 31 to firmly fix it. , can be attached to the wall frame 30 . The lower unit reinforcing surface member 17a has the back side of the upper end in contact with the front side of the lower connecting bar 21, and the back side of both side ends with the front side of the pair of pillars 31, respectively. With the back side of the lower end portion in contact with the surface side of the lower receiving bar 20, for example, a plurality of fixing screws are driven from the surface side toward the connecting bar 21, the column 31, and the lower receiving bar 20, thereby providing a firm structure. can be fixed to the wall frame 30. As a result, the reinforcing panel 17, in which the three unit reinforcing panels 17a are integrated, is mounted across the pair of pillars 31 in the portion between the ceiling member 34 and the floor member 35. .

なお、壁躯体30に補強面材17を取り付けるのに先立って、壁躯体30の内側に、断熱材や遮音材等を適宜配置しておくこともできる。また、補強面材17における間柱36と重なる部分において、例えば表面側からこれらの間柱36に向けて複数の固定ビスを打ち込むことによって、補強面材17を、壁躯体30にさらに強固に固定することが可能になる。上部受け桟15や下部受け桟20やつなぎ桟21が、柱31と中央部の間柱36との間に配置される中間部の間柱36と交差する部分において、上部受け桟15や下部受け桟20やつなぎ桟21の表面側から当該中間部の間柱36に向けて固定ビスを打ち込むことによって、より強固に、上部受け桟15や下部受け桟20やつなぎ桟21を固定することが可能になる。 In addition, prior to attaching the reinforcing face member 17 to the wall frame 30, a heat insulating material, a sound insulating material, or the like can be placed inside the wall frame 30 as appropriate. In addition, the reinforcing face member 17 can be further firmly fixed to the wall frame 30 by, for example, driving a plurality of fixing screws from the surface side toward the studs 36 at the portions of the reinforcing face member 17 that overlap with the studs 36 . becomes possible. At a portion where the upper receiving rail 15, the lower receiving rail 20, or the connecting rail 21 intersects the intermediate stud 36 arranged between the pillar 31 and the central stud 36, the upper receiving rail 15 or the lower receiving rail 20 is provided. By driving a fixing screw from the surface side of the connecting bar 21 toward the intermediate stud 36, the upper receiving bar 15, the lower receiving bar 20, and the connecting bar 21 can be fixed more firmly.

上述のようにして、壁躯体30に補強面材17を取り付けたら、天井材34と床材35との間の部分の補強面材17を覆って、壁下地材や壁仕上げ材を取り付けることによって、本実施形態の耐震補強壁構造10の施工が終了する。 After the reinforcing surface material 17 is attached to the wall frame 30 as described above, the reinforcing surface material 17 in the portion between the ceiling material 34 and the floor material 35 is covered, and the wall base material and wall finishing material are attached. , the construction of the earthquake-resistant reinforced wall structure 10 of the present embodiment is completed.

そして、上述の構成を備える本実施形態の耐震補強壁構造10によれば、上述のように、天井材34や床材35を撤去することなく、屋内からの作業によって効率良く耐震補強することが可能になると共に、柱31の中間部分として、柱31における補強面材17の上端部が接合される上部受け桟15の高さ位置や、補強面材17の下端部が接合される下部受け桟20の高さ位置において、曲げモーメントが生じることを前提とする設計を行う必要があるといった設計上の運用ルールによる制約を受けることなく、また好ましくは上段横架材32の下方や下段横架材33の上方に既存の金物や配管、配線等の施工上の障害物がある場合にこれらの障害物による制約を受けることなく、高耐力の耐震補強壁を容易に設計することが可能になる。 According to the earthquake-resistant reinforcing wall structure 10 of the present embodiment having the above-described configuration, as described above, earthquake-resistant reinforcement can be efficiently performed indoors without removing the ceiling material 34 and the floor material 35. As an intermediate part of the column 31, the height position of the upper receiving bar 15 to which the upper end of the reinforcing surface material 17 of the column 31 is joined, and the lower receiving bar to which the lower end of the reinforcing surface material 17 is joined At the height of 20, it is not restricted by the design operation rule that it is necessary to design assuming that a bending moment is generated, and preferably below the upper horizontal member 32 or the lower horizontal member If there are obstacles in construction such as existing hardware, piping, wiring, etc. above 33, it is possible to easily design an earthquake-resistant reinforced wall with high strength without being restricted by these obstacles.

すなわち、本実施形態によれば、壁躯体30における天井材34の下方に間隔をおいて取り付けられた、補強面材17の上端部が接合される上部受け桟15と、一対の柱31との角部内側部分の各々に、両端部が上部受け桟15と柱31とに接合されて取り付けられた上部コーナー金物16が取り付けられており、壁躯体30における床材35の上方に間隔をおいて取り付けられた、補強面材17の下端部が接合される下部受け桟20と、一対の柱31との角部内側部分の各々に、両端部が下部受け桟20と柱31とに接合されて取り付けられた下部コーナー金物22が取り付けられているので、上部受け桟15と柱31との接合部分や下部受け桟20と柱31との接合部分にモーメントが生じないように効果的に補強することが可能になる。これによって、壁躯体30の上段横架材32と、これの下方に配置された、補強面材17の上端部が接合される上部受け桟15との間に、開口部分が残ったままの状態となっており、且つ壁躯体30の下段横架材33と、これの上方に配置された、補強面材17の下端部が接合される下部受け桟20との間に、開口部分が残ったままの状態となっていることで、例えば地震荷重を受けた際に、柱31の中間部分の上部受け桟15との接合部及び下部受け桟20との接合部に、曲げモーメントが生じることを前提とする設計を行う必要があるといった設計上の運用ルールの制約を受けることになるのを解消させて、また好ましくは上段横架材32の下方や下段横架材33の上方に既存の金物や配管、配線等の施工上の障害物がある場合にこれらの障害物による制約を受けることになるのを解消させて、高耐力の耐震補強壁を容易に設計させることが可能になる。 That is, according to the present embodiment, the upper receiving beam 15 to which the upper end portion of the reinforcing panel 17 is joined and the pair of pillars 31 are attached below the ceiling material 34 in the wall frame 30 with a space therebetween. Attached to each of the inner corner portions is an upper corner fitting 16 having both ends joined to the upper receiving beam 15 and the pillar 31 and spaced above the flooring 35 in the wall frame 30. Both ends are joined to the lower receiving rail 20 and the pillar 31 to each of the inner corner portions of the attached lower receiving rail 20 to which the lower end of the reinforcing surface member 17 is joined and the pair of pillars 31. Since the attached lower corner hardware 22 is attached, the joint part between the upper receiving bar 15 and the column 31 and the joint part between the lower receiving bar 20 and the column 31 are effectively reinforced so as not to generate a moment. becomes possible. As a result, an opening remains between the upper horizontal member 32 of the wall frame 30 and the upper receiving beam 15 arranged below it to which the upper end of the reinforcing panel 17 is joined. , and an opening remains between the lower horizontal member 33 of the wall frame 30 and the lower receiving bar 20 to which the lower end of the reinforcing panel 17 is joined. In this state, for example, when an earthquake load is applied, a bending moment is prevented from occurring at the joint portion of the intermediate portion of the column 31 with the upper receiving rail 15 and the joint portion with the lower receiving rail 20. Existing hardware is preferably installed below the upper horizontal member 32 or above the lower horizontal member 33 to eliminate the restriction of the design operation rule that it is necessary to perform the premise design. When there are obstacles in construction such as pipes, wiring, etc., it is possible to eliminate restrictions due to these obstacles and easily design earthquake-resistant reinforced walls with high strength.

なお、本発明は上記実施形態に限定されることなく種々の変更が可能である。例えば、壁躯体の内側は、間柱によって4箇所の壁区画に仕切られている必要は必ずしも無く、図5(a)に示すように、2箇所の壁区画に仕切られていても良い。壁躯体の内側は、図5(b)に示すように、間柱によって仕切られていなくても良く、上部コーナー金物16や下部コーナー金物22は、上部受け桟15や下部受け桟20と一対の柱31との接合部における、上部受け桟15や下部受け桟20の各々の両端部の一対の柱31との角部内側部分にのみ取り付けられていても良い。補強面材は、複数枚の単位補強面材がつなぎ桟を介して一体となったものである必要は必ずしも無く、単一の面材からなるものであっても良い。本発明の耐震補強壁構造によって壁躯体が補強される建物は、2階建ての木造の住宅建築物以外の、平屋建てや3階建て以上の建物であっても良く、木造の壁躯体を含む、木造以外の建物であっても良い。 It should be noted that the present invention is not limited to the above embodiments, and various modifications are possible. For example, the inside of the wall frame does not necessarily have to be partitioned into four wall sections by studs, and may be partitioned into two wall sections as shown in FIG. 5(a). As shown in FIG. 5(b), the inside of the wall frame may not be partitioned by studs, and the upper corner hardware 16 and the lower corner hardware 22 are connected to the upper receiving rail 15 and the lower receiving rail 20 and a pair of pillars. 31, it may be attached only to the inside corners of the pair of pillars 31 at the ends of each of the upper receiving bar 15 and the lower receiving bar 20 . The reinforcing face member does not necessarily have to be formed by integrating a plurality of unit reinforcing face members via connecting bars, and may be made of a single face member. The building whose wall frame is reinforced by the earthquake-resistant reinforced wall structure of the present invention may be a one-story building or a building of three or more stories other than a two-story wooden residential building, and includes a wooden wall frame. , it may be a building other than a wooden structure.

10 耐震補強壁構造
15 上部受け桟
16 コーナー金物
16a 連結プレート部
16b 接合プレート部
16c 締着孔
17 補強面材
17a 単位補強面材
20 下部受け桟
21 つなぎ桟
22 下部コーナー金物
22a 連結プレート部
22b 接合プレート部
22c 締着孔
30 壁躯体
30a 天井懐
30b 床下間隔部
31 柱
32 上段横架材
33 下段横架材
34 天井材
35 床材
36 間柱
37 壁区画
10 Seismic reinforcement wall structure 15 Upper receiving bar 16 Corner metal fitting 16a Connecting plate part 16b Joining plate part 16c Fastening hole 17 Reinforcing face material 17a Unit reinforcing face material 20 Lower receiving bar 21 Connecting bar 22 Lower corner metal fitting 22a Connecting plate part 22b Joint Plate portion 22c Fastening hole 30 Wall frame 30a Ceiling pocket 30b Underfloor space 31 Column 32 Upper horizontal member 33 Lower horizontal member 34 Ceiling material 35 Floor material 36 Stud 37 Wall section

Claims (3)

隣接する一対の柱と、これらの一対の柱に跨るようにして上端部及び下端部に架け渡された上段横架材及び下段横架材とを含む壁躯体を、天井材及び床材を残置したまま屋内からの作業によって補強可能にする耐震補強壁構造であって、
壁躯体における天井材の下方に間隔をおいて、一対の前記柱の間に架け渡されて取り付けられた上部受け桟と、床材の上方に間隔をおいて、両側の一対の前記柱の間に架け渡されて取り付けられた下部受け桟と、
天井材と前記上部受け桟との間の間隔部分における、前記上部受け桟と一対の前記柱との角部内側部分の各々に、両端部が前記上部受け桟と前記柱とに接合されて取り付けられた上部コーナー金物と、床材と前記下部受け桟との間の間隔部分における、前記下部受け桟と一対の前記柱との角部内側部分の各々に、両端部が前記下部受け桟と前記柱とに接合されて取り付けられた下部コーナー金物と、天井材及び床材との間の部分において、一対の前記柱に架け渡されて取り付けられると共に、上端部が前記上部受け桟に接合され、下端部が前記下部受け桟に接合された矩形形状の補強面材とを含んで構成されており、
前記上部コーナー金物及び下部コーナー金物は、金属プレートを用いて形成され、等脚台形形状の連結プレート部と、該連結プレート部の両側の斜辺部から当該連結プレート部に対して折り曲げられた、一対の接合プレート部とを備えていると共に、該一対の接合プレート部は、各々、くの字の断面形状を備えるように折り曲げられており、連結プレート部に対して斜めに傾斜する基端部側の部分に、金物止め用ビスを締着させるための締着孔が複数貫通形成されている耐震補強壁構造。
A wall frame that includes a pair of adjacent pillars and upper and lower horizontal members that span the upper and lower ends of the pair of pillars, leaving ceiling materials and floor materials. An earthquake-resistant reinforced wall structure that can be reinforced by work from indoors while it is still in place,
An upper receiving beam mounted between the pair of pillars with a space below the ceiling material of the wall frame, and a space above the floor material between the pair of pillars on both sides A lower receiving pier attached across the
Both ends are joined to the upper receiving rail and the pillar to each of the inner corner portions of the upper receiving rail and the pair of the pillars in the space between the ceiling material and the upper receiving rail. In the space between the upper corner hardware and the floor material and the lower receiving rail, each of the inner corner portions of the lower receiving rail and the pair of pillars has both ends connected to the lower receiving rail and the lower receiving rail. In the portion between the lower corner metal fitting attached to the pillar and the ceiling material and the floor material, it is attached across the pair of pillars, and the upper end is joined to the upper receiving bar, and a rectangular reinforcing face member whose lower end is joined to the lower receiving bar ,
The upper corner metal fittings and the lower corner metal fittings are formed using metal plates, and include a pair of isosceles trapezoidal connecting plate portions and oblique side portions on both sides of the connecting plate portions which are bent toward the connecting plate portions. Each of the pair of joint plate portions is bent so as to have a doglegged cross-sectional shape, and the base end side inclined obliquely with respect to the connection plate portion A seismic reinforcement wall structure in which a plurality of fastening holes for fastening screws for fixing metal fittings are formed through the part .
前記壁躯体の内側は、前記上段横架材と前記下段横架材との間に架け渡された間柱によって、複数の壁区画に仕切られており、各々の壁区画において、前記上部受け桟及び前記下部受け桟が、両側の柱又は間柱の間に同じ高さで架け渡されて取り付けられており、前記上部受け桟と前記柱又は前記間柱との角部内側部分の各々に、両端部が前記上部受け桟と前記柱又は前記間柱とに接合されて、前記上部コーナー金物が取り付けられており、前記下部受け桟と前記柱又は前記間柱との角部内側部分の各々に、両端部が前記下部受け桟と前記柱又は前記間柱とに接合されて、前記下部コーナー金物が取り付けられている請求項1記載の耐震補強壁構造。 The inside of the wall frame is partitioned into a plurality of wall sections by studs spanning between the upper horizontal member and the lower horizontal member. The lower receiving rail is mounted across the pillars or studs on both sides at the same height, and both ends are attached to each of the inner corner portions of the upper receiving rail and the pillar or stud. The upper corner hardware is attached by being joined to the upper receiving rail and the pillar or the stud, and both ends are attached to the corner inside portions of the lower receiving rail and the pillar or the stud. 2. The seismically reinforced wall structure according to claim 1, wherein said lower corner hardware is attached by being joined to said lower receiving rail and said column or said stud. 前記補強面材は、上下方向に分割された複数枚の単位補強面材を、上下方向に連設配置して形成されており、上下に隣接する前記単位補強面材は、これらの上端部又は下端部が、一対の前記柱に架け渡されたつなぎ桟に接合されていることで、該つなぎ桟を介して複数枚の前記単位補強面材が一体となった前記補強面材が形成されている請求項1又は2記載の耐震補強壁構造。 The reinforcing surface material is formed by arranging a plurality of vertically divided unit reinforcing surface materials in series in the vertical direction. The lower end portion is joined to a connecting bar that spans over the pair of pillars, so that the reinforcing panel is formed by integrating a plurality of the unit reinforcing panel via the connecting bar. The seismic reinforcement wall structure according to claim 1 or 2.
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JP2005232713A (en) 2004-02-17 2005-09-02 Sumitomo Forestry Co Ltd Seismically strengthening structure for wooden frame housing, and method of seismically strengthening the same
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Publication number Priority date Publication date Assignee Title
JP2003232133A (en) 2002-02-08 2003-08-22 Total System Kk Earthquake resistant reinforced structure of wooden building
JP2004263500A (en) 2003-03-04 2004-09-24 Aim Kk House reinforcing kit and method for using the same
JP2005232713A (en) 2004-02-17 2005-09-02 Sumitomo Forestry Co Ltd Seismically strengthening structure for wooden frame housing, and method of seismically strengthening the same
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