JP6768457B2 - Insulation structure of bearing wall and how to attach insulation material of bearing wall - Google Patents

Insulation structure of bearing wall and how to attach insulation material of bearing wall Download PDF

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JP6768457B2
JP6768457B2 JP2016220634A JP2016220634A JP6768457B2 JP 6768457 B2 JP6768457 B2 JP 6768457B2 JP 2016220634 A JP2016220634 A JP 2016220634A JP 2016220634 A JP2016220634 A JP 2016220634A JP 6768457 B2 JP6768457 B2 JP 6768457B2
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heat insulating
lattice
insulating material
wall panel
pillar
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JP2018076747A (en
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鈴木 勝也
勝也 鈴木
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Toyota Housing Corp
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本発明は、耐力壁の断熱構造及び耐力壁の断熱材取付方法に関する。 The present invention relates to a heat insulating structure of a bearing wall and a method of attaching a heat insulating material to the bearing wall.

特許文献1には、鉄骨造において耐力壁としてラチス柱が用いられた建物が記載されている。ラチス柱は、角形鋼などを用いた一対の縦材が上下の梁の間に配置されており、一対の縦材の間に、縦材に対して斜め方向に延びるように丸鋼材などを用いたラチス材が設けられる。ラチス材は、斜め部分と直線部分とが交互に形成されて、直線部分において縦材に接合されている。 Patent Document 1 describes a building in which a lattice pillar is used as a bearing wall in a steel structure. In the lattice column, a pair of vertical members made of square steel or the like are arranged between the upper and lower beams, and a round steel material or the like is used between the pair of vertical members so as to extend diagonally with respect to the vertical members. The existing lattice material is provided. In the lattice material, diagonal portions and straight portions are alternately formed and joined to the vertical member at the straight portions.

一方、住宅などの建物としては、断熱性が向上された高断熱性建物が要求されており、このために、建物の外壁部に断熱構造が採用されている。外壁部の断熱構造としては、柱を挟むように設けられる外壁パネルと屋内パネルとの間に板状に形成された断熱材が充填配置されている。 On the other hand, as a building such as a house, a highly heat-insulating building with improved heat insulation is required, and for this reason, a heat-insulating structure is adopted for the outer wall portion of the building. As the heat insulating structure of the outer wall portion, a heat insulating material formed in a plate shape is filled and arranged between the outer wall panel provided so as to sandwich the pillar and the indoor panel.

特開2014−047522号公報Japanese Unexamined Patent Publication No. 2014-047522

ところで、軸組工法を用いた建物では、鉄骨の骨組みが形成された状態で外壁パネルが取り付けられ、骨組みが外壁パネルにより囲われている。断熱材は、外壁パネルが取り付けられた後の建物内部の施工に合わせて、屋内側から外壁部の柱の間に充填されて取り付けられる。この際、断熱材と外壁パネルとの間の空間を狭めるように断熱材が取り付けられることで、外壁部に断熱性が付与される。 By the way, in a building using the frame construction method, an outer wall panel is attached in a state where a steel frame is formed, and the frame is surrounded by the outer wall panel. The heat insulating material is filled and attached between the pillars of the outer wall portion from the indoor side according to the construction inside the building after the outer wall panel is attached. At this time, the heat insulating material is attached so as to narrow the space between the heat insulating material and the outer wall panel, so that the outer wall portion is provided with heat insulating properties.

しかしながら、ラチス柱を用いた耐力壁が設けられていると、縦材(柱)の間に、上下方向に複数のラチス材が設けられていることで、断熱材を屋内側からラチス柱と外壁パネルとの間に取り付けるのが難しい作業となっている。このため、ラチス柱部分に対しては、外壁パネルの取り付けに先立って、断熱材を取り付けておくこともが考えられるが、外壁パネルを取り付ける際に、建物内側から外壁パネルの出面を調整する必要があり、断熱材が取り付けられていると、外壁パネルの取付調整の作業の妨げとなってしまう。 However, if a bearing wall using lattice columns is provided, a plurality of lattice members are provided in the vertical direction between the vertical members (columns), so that the heat insulating material can be provided from the indoor side to the lattice columns and the outer wall. It is a difficult task to install between the panel. For this reason, it is conceivable to attach a heat insulating material to the lattice pillar part before attaching the outer wall panel, but when attaching the outer wall panel, it is necessary to adjust the protruding surface of the outer wall panel from the inside of the building. If the heat insulating material is attached, it interferes with the work of adjusting the attachment of the outer wall panel.

本発明は上記事実に鑑みてなされたものであり、外壁パネルの取付調整の作業の妨げとならない耐力壁の断熱構造及び耐力壁の断熱材取付方法を提供することを目的とする。 The present invention has been made in view of the above facts, and an object of the present invention is to provide a heat insulating structure for a bearing wall and a method for mounting a heat insulating material on the bearing wall, which does not interfere with the work of adjusting the mounting of the outer wall panel.

上記目的を達成するための第1の態様は、両端の直線部の間に斜め部と直線部とが交互に設けられたラチス材が一対の縦柱の間に配置されて、前記縦柱の一方と他方とに前記ラチス材の前記直線部が交互に接続されたラチス柱と、前記ラチス柱の屋外側に設けられた外壁パネルと、一対の前記縦柱の間における前記外壁パネルの所定位置を除いて前記ラチス材の前記外壁パネル側を覆う複数の第1断熱材と、屋内側から一対の前記縦柱の間における前記ラチス材と前記外壁パネルとの間に取り付け可能とされ、前記第1断熱材の間又は下側の前記第1断熱材の下端から一対の前記縦柱の下端部の間を覆う第2断熱材と、を備える耐力壁の断熱構造。 In the first aspect for achieving the above object, a lattice material in which diagonal portions and straight portions are alternately provided between the straight portions at both ends is arranged between the pair of vertical columns, and the vertical columns are arranged. A predetermined position of the outer wall panel between a lattice pillar in which the straight portions of the lattice material are alternately connected to one and the other, an outer wall panel provided on the outdoor side of the lattice pillar, and a pair of the vertical pillars. A plurality of first heat insulating materials covering the outer wall panel side of the lattice material, and the first heat insulating material can be attached between the lattice material and the outer wall panel between the pair of vertical columns from the indoor side. A heat insulating structure of a bearing wall comprising one heat insulating material or a second heat insulating material that covers between the lower end of the first heat insulating material and the lower end of the pair of vertical columns.

第1の態様の耐力壁には、両端の直線部の間に斜め部と直線部とが交互に形成されているラチス材が2本の縦柱の間に配置されたラチス柱が適用されている。ラチス柱は、直線部が一対の縦柱に交互に接続されており、一対の縦柱の間に掛け渡された斜め部が上下方向に複数配置されている。 To the bearing wall of the first aspect, a lattice column in which diagonal portions and straight portions are alternately formed between the straight portions at both ends and the lattice material is arranged between two vertical columns is applied. There is. In the lattice pillars, straight portions are alternately connected to a pair of vertical columns, and a plurality of diagonal portions hung between the pair of vertical columns are arranged in the vertical direction.

第1の態様では、一対の縦柱の間で、ラチス材と外壁パネルとの間に断熱材が配置されている。断熱材は、縦柱の間において外壁パネルの所定位置を除いてラチス材の外壁パネル側を覆う複数の第1断熱材、及び屋内側から一対の縦柱の間のラチス材と外壁パネルとの間に取り付け可能とされ、第1断熱材の間又下側の第1断熱材の下端から一対の縦柱の下端部の間を覆う第2断熱材により形成されている。また、外壁パネルの所定位置としては、外壁パネルの出目などを調整するための位置が適用される。 In the first aspect, the heat insulating material is arranged between the lattice material and the outer wall panel between the pair of vertical columns. The heat insulating material is a plurality of first heat insulating materials that cover the outer wall panel side of the lattice material except for a predetermined position of the outer wall panel between the vertical columns, and the lattice material and the outer wall panel between the pair of vertical columns from the indoor side. It can be attached between the first heat insulating materials, and is formed of a second heat insulating material that covers between the first heat insulating materials and between the lower ends of the lower first heat insulating materials and the lower ends of the pair of vertical columns. Further, as a predetermined position of the outer wall panel, a position for adjusting the appearance of the outer wall panel or the like is applied.

これにより、ラチス材と外壁パネルとの間に第1断熱材が取り付けられていても、外壁パネルの所定位置に対応する部分に第1断熱材が取り付けられていないことで、屋内側から外壁パネルの取付調整の作業が可能となる。また、第2断熱材は、屋内側からラチス材と外壁パネルとの間に挿入して取り付けできて、第1断熱材の間又は下側の第1断熱材の下端から縦柱の下端部の間までを塞ぐので、高い断熱性が得られる。 As a result, even if the first heat insulating material is attached between the lattice material and the outer wall panel, the first heat insulating material is not attached to the portion corresponding to the predetermined position of the outer wall panel, so that the outer wall panel is installed from the indoor side. Installation adjustment work is possible. Further, the second heat insulating material can be inserted and attached between the lattice material and the outer wall panel from the indoor side, and can be attached between the first heat insulating materials or from the lower end of the lower first heat insulating material to the lower end of the vertical column. Since it closes the space, high heat insulation can be obtained.

第2の態様は、第1の態様において、一対の前記縦柱の一方の縦柱側の直線部が一対の前記縦柱の他方の縦柱側の直線部より長くされると共に、前記一方の縦柱と前記直線部との間に、直線部の上下方向長さより短くされた支持部材が設けられて、前記支持部材を介して前記直線部が前記一方の縦柱に接続されており、前記第2断熱材は、前記他方の縦柱の前記直線部に重ならず、前記一方の縦柱の前記直線部に重なるように設けられている。 In the second aspect, in the first aspect, the straight line portion on one vertical column side of the pair of vertical columns is made longer than the straight line portion on the other vertical column side of the pair of vertical columns, and the one A support member shorter than the vertical length of the straight portion is provided between the vertical column and the straight portion, and the straight portion is connected to the one vertical column via the support member. The second heat insulating material is provided so as not to overlap the straight portion of the other vertical pillar but to overlap the straight portion of the one vertical pillar.

第2の態様では、ラチス材の直線部の長さは、一方の縦柱側が他方の縦柱側より長くされている。複数の第1断熱材の間を覆う第2断熱材は、他方の縦柱の直線部に重ならず、一方の縦柱の直線部に重なるように設けられており、斜め部の間が他方の縦柱の直線部側より広くされた一方の縦柱の直線部側に設けられている。 In the second aspect, the length of the straight portion of the lattice material is longer on one vertical column side than on the other vertical column side. The second heat insulating material that covers between the plurality of first heat insulating materials is provided so as not to overlap the straight portion of the other vertical pillar but to overlap the straight portion of one vertical pillar, and the space between the diagonal portions is the other. It is provided on the straight side of one of the vertical pillars, which is wider than the straight side of the vertical pillar.

これにより、屋内側から一対の縦柱の間のラチス材と外壁パネルとの間に取り付け可能にされた第2断熱材の上下方向の長さを大きくできるので、外壁パネルの所定位置を大きく開けることができて、外壁パネルの取付調整作業のための空間を大きく確保できる。 As a result, the vertical length of the second heat insulating material that can be attached between the lattice material and the outer wall panel between the pair of vertical columns from the indoor side can be increased, so that the predetermined position of the outer wall panel can be widened. This makes it possible to secure a large space for mounting and adjusting the outer wall panel.

第3の態様は、両端の直線部の間に斜め部と直線部とが交互に設けられたラチス材が一対の縦柱の間に配置されて、前記縦柱の一方と他方とに前記ラチス材の前記直線部が交互に接続されたラチス柱、及び前記ラチス柱の屋外側に設けられた外壁パネルを含む耐力壁に断熱材を取り付ける耐力壁の断熱材取付方法であって、一対の前記縦柱の間における前記外壁パネルの所定位置を除いて前記ラチス材の前記外壁パネル側を覆う複数の第1断熱材を、前記外壁パネルの取り付け前に前記ラチス柱に取り付け、屋内側から一対の前記縦柱の間における前記ラチス材と前記外壁パネルとの間に取り付け可能とされ、前記第1断熱材の間又は複数の前記第1断熱材の下端から一対の前記縦柱の下端部の間までを覆う第2断熱材を、前記外壁パネルが取り付けられた前記ラチス柱の屋内側から取り付けることを特徴としている。 In the third aspect, a lattice material in which diagonal portions and straight portions are alternately provided between the straight portions at both ends is arranged between the pair of vertical columns, and the lattice is provided on one and the other of the vertical columns. A pair of bearing wall heat insulating material attachment methods for attaching a heat insulating material to a bearing wall including a lattice column in which the straight portions of the material are alternately connected and an outer wall panel provided on the outdoor side of the lattice column. A plurality of first heat insulating materials covering the outer wall panel side of the lattice material except for a predetermined position of the outer wall panel between the vertical columns are attached to the lattice columns before the outer wall panel is attached, and a pair from the indoor side. It can be attached between the lattice material and the outer wall panel between the vertical columns, and between the first heat insulating materials or between the lower ends of the plurality of first heat insulating materials and between the lower ends of the pair of vertical columns. The second heat insulating material that covers up to is attached from the indoor side of the lattice pillar to which the outer wall panel is attached.

第3の態様では、外壁パネルの取り付けに先立って、ラチス柱に第1断熱材を取り付けておく。また、第2断熱材は、外壁パネルの取付調整の作業等が行われた後、屋内側からラチス材と外壁パネルとの間に挿入して取り付ける。このため、耐力壁に断熱材を付与するための第1断熱材及び第2断熱材の取り付けが容易となると共に、第2断熱材が外壁パネル取付調整の作業を妨げることがない。 In the third aspect, the first heat insulating material is attached to the lattice column prior to the attachment of the outer wall panel. Further, the second heat insulating material is inserted and attached between the lattice material and the outer wall panel from the indoor side after the work of adjusting the attachment of the outer wall panel and the like is performed. Therefore, the first heat insulating material and the second heat insulating material for imparting the heat insulating material to the bearing wall can be easily attached, and the second heat insulating material does not interfere with the work of adjusting the attachment of the outer wall panel.

第4の態様は、第3の態様において、前記ラチス柱に予め前記第1断熱材を取付けると共に、前記第2断熱材を前記ラチス柱に着脱可能に取り付けておき、前記外壁パネルを取付ける際に、前記ラチス柱から前記第2断熱材を取り外し、前記外壁パネルを取付けた後に、前記第2断熱材を前記ラチス柱に取り付ける。 In the fourth aspect, in the third aspect, when the first heat insulating material is attached to the lattice pillar in advance, the second heat insulating material is detachably attached to the lattice pillar, and the outer wall panel is attached. After removing the second heat insulating material from the lattice pillar and attaching the outer wall panel, the second heat insulating material is attached to the lattice pillar.

第4の態様では、ラチス柱に予め第1断熱材を取り付けるときに、第2断熱材を着脱可能に仮止めして取り付けておく。これにより、第1断熱材を高精度で位置決めできると共に、外壁パネルを取り付けた後に第2断熱材を取り付ける際に、第1断熱材に対して第2断熱材を精度良く位置決めできる。 In the fourth aspect, when the first heat insulating material is attached to the lattice pillar in advance, the second heat insulating material is temporarily fixed and attached detachably. As a result, the first heat insulating material can be positioned with high accuracy, and the second heat insulating material can be accurately positioned with respect to the first heat insulating material when the second heat insulating material is attached after the outer wall panel is attached.

例えば、第1断熱材及び第2断熱材に位置決め不良があると、ラチス柱に取り付けた第1断熱材と第2断熱材との間に隙間が生じて断熱性が低下する。これに対して、第1断熱材及び第2断熱材を精度良く位置決めできるので、高い断熱性が得られる。また、第1断熱材を取り付けるときに第2断熱材を仮止めしておくことで、第2断熱材を取り付けることきに、第1断熱材に対しての第2断熱材の位置決めが容易となるので、断熱材の取付作業の作業性を向上できる。 For example, if the first heat insulating material and the second heat insulating material have poor positioning, a gap is formed between the first heat insulating material and the second heat insulating material attached to the lattice pillar, and the heat insulating property is deteriorated. On the other hand, since the first heat insulating material and the second heat insulating material can be positioned with high accuracy, high heat insulating properties can be obtained. Further, by temporarily fixing the second heat insulating material when the first heat insulating material is attached, it is easy to position the second heat insulating material with respect to the first heat insulating material when the second heat insulating material is attached. Therefore, the workability of the heat insulating material mounting work can be improved.

以上説明したように第1の態様によれば、ラチス柱を覆う第1断熱材及び第2断熱材が外壁パネルの取付調整の作業を妨げることがない、という効果を有する。 As described above, according to the first aspect, there is an effect that the first heat insulating material and the second heat insulating material covering the lattice pillars do not interfere with the work of adjusting the mounting of the outer wall panel.

第2の態様によれば、外壁パネルの取付調整等の作業スペースを広くできるので、外壁パネルの取付調整等の作業効率を向上できる、という効果を有する。 According to the second aspect, since the work space for mounting and adjusting the outer wall panel can be widened, there is an effect that the work efficiency for mounting and adjusting the outer wall panel can be improved.

第3の態様によれば、外壁パネルの取付調整等の作業性を低下させることなく断熱材を取り付けることができる、という効果を有する。 According to the third aspect, there is an effect that the heat insulating material can be attached without deteriorating workability such as attachment adjustment of the outer wall panel.

また、第4の態様によれば、第1断熱材及び第2断熱材を精度良く位置決めできて、断熱性の向上を図ることができる、という効果を有する。 Further, according to the fourth aspect, there is an effect that the first heat insulating material and the second heat insulating material can be accurately positioned and the heat insulating property can be improved.

本実施の形態に係る建物の主要部を示す上方視の断面図である。It is sectional drawing of the upper view which shows the main part of the building which concerns on this embodiment. 図1の2−2線における外壁部の断面図である。It is sectional drawing of the outer wall part in line 2-2 of FIG. (A)及び(B)は、ラチス柱を示す正面図である。(A) and (B) are front views showing lattice pillars. 一部の断熱材の取付前を示す図2と同様の外壁部の断面図である。It is sectional drawing of the outer wall part similar to FIG. 2 which shows before mounting a part of heat insulating material.

以下、図面を参照して本発明の実施の形態を詳細に説明する。本実施の形態では、鉄骨軸組工法により構築された建物10を例に説明する。図1には、建物10の主要部が上方視の断面図にて示されている。また、図2には、建物10の外壁部が図1の2−2線における断面図にて示されると共に、2−2線側から見た紙面奥側の外壁部が正面図にて示されている。なお、建物10は、2階建て又は3階建て以上であっても良く、また、平屋であっても良い。図1及び図2には、2階立て以上の建物10における1階部分の外壁部分が示されている。また、図2では、1階の床レベルが1SL、2階の床レベルが2SL、1階の床仕上がりレベルが1FLにて示されている。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, the building 10 constructed by the steel frame construction method will be described as an example. In FIG. 1, the main part of the building 10 is shown in a cross-sectional view in an upward view. Further, in FIG. 2, the outer wall portion of the building 10 is shown in a cross-sectional view taken along line 2-2 of FIG. 1, and the outer wall portion on the back side of the paper as seen from the line 2-2 side is shown in a front view. ing. The building 10 may have two or more floors, or may be a one-story building. 1 and 2 show the outer wall portion of the first floor portion of the building 10 having two or more floors. Further, in FIG. 2, the floor level of the first floor is 1SL, the floor level of the second floor is 2SL, and the floor finish level of the first floor is 1FL.

建物10には、骨組みとして複数の柱や梁が設けられており、柱には、角形鋼等が用いられ、梁にはH形鋼等が用いられる。図2に示されるように、建物10には、下側に鉄筋コンクリート造の基礎梁12が設けられ、上側に天井梁(2階の床梁)14が設けられており、基礎梁12と天井梁14との間に柱16が設けられている。また、図1に示されるように、柱16は、建物10の角部の各々に設けられている。なお、角部の間隔(柱16の間隔)が所定の間隔より広い場合などにおいては、柱16の間に本又は複数本の柱16(例えば間柱、以下、区別する場合、柱16Aという)が設けられている。柱16の各々は、下端部が基礎梁12に連結され、上端部が天井梁14に連結されている。 The building 10 is provided with a plurality of columns and beams as a framework, and square steel or the like is used for the columns and H-shaped steel or the like is used for the beams. As shown in FIG. 2, the building 10 is provided with a reinforced concrete foundation beam 12 on the lower side and a ceiling beam (floor beam on the second floor) 14 on the upper side, and the foundation beam 12 and the ceiling beam. A pillar 16 is provided between the 14 and the pillar 16. Further, as shown in FIG. 1, pillars 16 are provided at each corner of the building 10. When the distance between the corners (the distance between the pillars 16) is wider than a predetermined distance, a book or a plurality of pillars 16 (for example, studs, hereinafter referred to as pillars 16A when distinguished) are placed between the pillars 16. It is provided. The lower end of each of the columns 16 is connected to the foundation beam 12, and the upper end is connected to the ceiling beam 14.

建物10には、屋外側の面に外壁パネル18が設けられると共に、屋内側に内装パネル(例えば石膏ボードなど)20が設けられて、外壁部22が形成されている。基礎梁12(又は基礎梁12上の床梁)及び天井梁14には、外壁フレーム24が設けられている。外壁パネル18は、所定の幅で高さ方向の長さが建物10の階高(1SLから2SLまでの高さ)に応じた長さとされており、外壁パネル18が建て起こされて外壁フレーム24に取付けられ、ボルト及びナット等により外壁フレーム24等に締結固定されている。 In the building 10, an outer wall panel 18 is provided on the outdoor side, and an interior panel (for example, gypsum board) 20 is provided on the indoor side to form an outer wall portion 22. An outer wall frame 24 is provided on the foundation beam 12 (or the floor beam on the foundation beam 12) and the ceiling beam 14. The outer wall panel 18 has a predetermined width and a length in the height direction corresponding to the floor height (height from 1SL to 2SL) of the building 10, and the outer wall panel 18 is erected to raise the outer wall frame 24. It is attached to the outer wall frame 24 and the like with bolts and nuts.

外壁パネル18の裏面(屋内側の面)には、下地とされている複数の合板(図示省略)が上下方向に配置されて取り付けられており、隣接される外壁パネル18の間が目地とされる。また、建物10の角部(角の柱16の外側)には、コーナー用の外壁パネル18Aが取付けられて、建物10の外面が外壁パネル18により囲われる。屋外側から見える隣接する外壁パネル18の間の目地は、シーリング材等が用いられて目地埋めされる。 A plurality of plywoods (not shown) used as a base are arranged and attached in the vertical direction on the back surface (indoor side surface) of the outer wall panel 18, and the space between the adjacent outer wall panels 18 is used as a joint. To. Further, an outer wall panel 18A for corners is attached to a corner portion (outside of the corner pillar 16) of the building 10, and the outer surface of the building 10 is surrounded by the outer wall panel 18. The joints between the adjacent outer wall panels 18 that can be seen from the outdoor side are filled with a sealing material or the like.

外壁パネル18の各々は、目地において出面などの調整が行われて固定される。外壁パネル18の目地における調整は、外壁パネル18の長さ方向(建て起こしたときの高さ方向)の予め定めている高さ位置(以下、調整位置26という)において行われる。本実施の形態では、例えば、上下方向の中間部に調整位置26Aが設定され、下端部に調整位置26Bが設定されている。 Each of the outer wall panels 18 is fixed by adjusting the protrusion surface and the like at the joints. The adjustment at the joint of the outer wall panel 18 is performed at a predetermined height position (hereinafter referred to as the adjustment position 26) in the length direction of the outer wall panel 18 (height direction when the outer wall panel 18 is erected). In the present embodiment, for example, the adjustment position 26A is set at the intermediate portion in the vertical direction, and the adjustment position 26B is set at the lower end portion.

本実施の形態において調整位置26が外壁パネル18の所定位置とされている。外壁パネル18の取付調整には、調整位置26において、目地の幅に応じた厚さ(例えば、厚さが9mm)及びサイズ(例えば、50mm×35mm)のスペーサ合板28が用いられており、複数のスペーサ合板28が調整位置26において目地に嵌め込まれて、外壁パネル18の出目調整等の取付調整が行われる。なお、図2及び図4では、説明を容易にするために、柱16に対するスペーサ合板28の大きさの比率を実際よりも大きくして、調整位置26におけるスペーサ合板28を大きく示している。 In the present embodiment, the adjustment position 26 is a predetermined position of the outer wall panel 18. For the mounting adjustment of the outer wall panel 18, at the adjustment position 26, spacer plywood 28 having a thickness (for example, a thickness of 9 mm) and a size (for example, 50 mm × 35 mm) according to the width of the joint is used. The spacer plywood 28 is fitted into the joint at the adjustment position 26, and mounting adjustment such as roll adjustment of the outer wall panel 18 is performed. In addition, in FIG. 2 and FIG. 4, in order to facilitate the explanation, the ratio of the size of the spacer plywood 28 to the pillar 16 is made larger than the actual size, and the spacer plywood 28 at the adjustment position 26 is shown larger.

一方、建物10には、耐力壁を形成するラチス柱30が設けられている。図3(A)には、2本の縦柱が用いられたラチス柱30が正面図にて示され、図3(B)には、3本の縦柱が用いられたラチス柱30Bが正面図にて示されている。なお、ラチス柱30A、30Bは縦柱の間隔が異なっているが基本的構成は、同様であり、ここでは、ラチス柱30Aを例にラチス柱30の構造を説明する。 On the other hand, the building 10 is provided with a lattice pillar 30 that forms a bearing wall. FIG. 3A shows a front view of a lattice pillar 30 using two vertical columns, and FIG. 3B shows a front view of a lattice pillar 30B using three vertical columns. It is shown in the figure. The vertical columns 30A and 30B have different vertical column spacings, but the basic configuration is the same. Here, the structure of the lattice columns 30 will be described using the lattice columns 30A as an example.

ラチス柱30には、弦材としての一対の縦柱32、34が設けられていると共に、縦柱32、34の間にラチス材としてのラチス36が設けられている。縦柱32は、一対の縦柱のうちの一方の縦柱とされ、縦柱34は、一対の縦柱のうちの他方の縦柱とされている。縦柱32、34としては、例えば、角鋼材が用いられ、ラチス36としては、例えば、丸鋼材が用いられる。なお、ラチス柱30Bは、ラチス柱30Aとは縦柱32、34の間隔が異なるが、2本の縦柱32の間に縦柱34が設けられており、2つのラチス柱30Aが一体にされたのと同様の構成となっている。また、建物10においては、縦柱32が柱16とされ、縦柱34が柱16Aとされている。なお、縦柱32、34の間隔は、耐震強度、建物10における外壁部22の柱16の間隔等に応じて定まったものであれば良く、図3(A)では、図1、図2、及び図4におけるラチス柱30の縦柱32(柱16)と縦柱34(柱16A)の間隔よりも狭いラチス柱30Aとしている。 The lattice pillar 30 is provided with a pair of vertical columns 32 and 34 as chord members, and a lattice 36 as a lattice material is provided between the vertical columns 32 and 34. The vertical column 32 is one of a pair of vertical columns, and the vertical column 34 is the other vertical column of the pair of vertical columns. As the vertical columns 32 and 34, for example, a square steel material is used, and as the lattice 36, for example, a round steel material is used. The lattice pillars 30B have different vertical columns 32 and 34 from the lattice columns 30A, but the vertical columns 34 are provided between the two vertical columns 32, and the two lattice columns 30A are integrated. It has the same structure as the one. Further, in the building 10, the vertical pillar 32 is a pillar 16, and the vertical pillar 34 is a pillar 16A. The spacing between the vertical columns 32 and 34 may be determined according to the seismic strength, the spacing between the columns 16 of the outer wall portion 22 in the building 10, and the like, and in FIG. 3 (A), FIGS. The lattice pillar 30A is narrower than the distance between the vertical pillar 32 (pillar 16) and the vertical pillar 34 (pillar 16A) of the lattice pillar 30 in FIG.

縦柱32、34には、上端部に連結部材38が設けられており、連結部材38がボルト及びナットを介して天井梁14に締結固定されている。また、縦柱32、34は、下端部が基礎梁12に設けられた図示しないアンカーにボルトによって締結固定されている。なお、縦柱32、34は、下端部に図示しない連結部材が設けられ、連結部材がボルト及びナットによって下梁(床梁)に締結固定されても良い。 The vertical columns 32 and 34 are provided with a connecting member 38 at the upper end thereof, and the connecting member 38 is fastened and fixed to the ceiling beam 14 via bolts and nuts. Further, the lower ends of the vertical columns 32 and 34 are fastened and fixed by bolts to anchors (not shown) provided on the foundation beam 12. The vertical columns 32 and 34 may be provided with a connecting member (not shown) at the lower end thereof, and the connecting member may be fastened and fixed to the lower beam (floor beam) by bolts and nuts.

ラチス36は、両端の直線部40の間に斜め部42と直線部44が交互に形成されており、直線部44は、直線部44Aと直線部44Bとが交互にされている。直線部44A、44Bは、直線部44Bよりも直線部44Aが長くされている。直線部40、44A、44Bは、斜め部42の両端部に曲げ加工により形成されている。 In the lattice 36, diagonal portions 42 and straight portions 44 are alternately formed between the straight portions 40 at both ends, and in the straight portions 44, the straight portions 44A and the straight portions 44B are alternately formed. In the straight portions 44A and 44B, the straight portions 44A are longer than the straight portions 44B. The straight portions 40, 44A, 44B are formed by bending at both ends of the oblique portion 42.

ラチス36は、両端の直線部40及び直線部44Bが縦柱34側とされて直線部44Aが縦柱32側とされており、直線部40、44Bが縦柱34溶接等により接合されている。また、縦柱32には、支持部材としてのラチスコマ46が設けられている。ラチスコマ46は、所定の板厚の金属板により形成されており、長さが直線部44Aの長さよりも短くされている。 In the lattice 36, the straight portions 40 and the straight portions 44B at both ends are on the vertical column 34 side, the straight portions 44A are on the vertical column 32 side, and the straight portions 40 and 44B are joined by welding the vertical columns 34 or the like. .. Further, the vertical pillar 32 is provided with a lattice coma 46 as a support member. The lattice coma 46 is formed of a metal plate having a predetermined plate thickness, and its length is shorter than the length of the straight portion 44A.

ラチスコマ46は、縦柱32とラチス36の直線部44Aとの間に配置されて、ラチスコマ46を介して直線部44Aが縦柱32に溶接等により接合されている。これにより、直線部44Aが縦柱32に対して浮いた状態にされている。なお、ラチスコマ46は、高減衰ゴム製の板材(粘弾性部材)であっても良い。 The lattice coma 46 is arranged between the vertical pillar 32 and the straight portion 44A of the lattice 36, and the straight portion 44A is joined to the vertical pillar 32 by welding or the like via the lattice coma 46. As a result, the straight line portion 44A is in a floating state with respect to the vertical column 32. The lattice coma 46 may be a plate material (viscoelastic member) made of high damping rubber.

ラチス柱30では、直線部44Aと斜め部42との間の曲げ部が塑性ヒンジ部となっている。塑性ヒンジ部は、地震力などの外力が作用した場合に曲げ変形して振動エネルギーを吸収するエネルギー吸収部に相当し、荷重により断面が降伏することで塑性ヒンジ(降伏ヒンジ)が形成される領域となっている。また、ラチスコマ46が設けられることで、塑性ヒンジ部が縦柱32から浮かせられて塑性ヒンジ部の曲げ変形領域が確保されており、縦柱32に干渉することなく変形が可能にされている。また、直線部44Aの両側の斜め部42が互いに逆向きとされていることで、揺れ方向が左右逆となっても塑性ヒンジ部が機能するようにされており、建物10は、ラチス柱30(30A、30B)が設けられていることで、優れた耐震性が得られる。 In the lattice column 30, the bent portion between the straight portion 44A and the diagonal portion 42 is a plastic hinge portion. The plastic hinge portion corresponds to an energy absorption portion that bends and deforms to absorb vibration energy when an external force such as a seismic force is applied, and a region where a plastic hinge (yield hinge) is formed by yielding a cross section due to a load. It has become. Further, by providing the lattice coma 46, the plastic hinge portion is floated from the vertical column 32 to secure a bending deformation region of the plastic hinge portion, and the plastic hinge portion can be deformed without interfering with the vertical column 32. Further, since the diagonal portions 42 on both sides of the straight portion 44A are oriented in opposite directions, the plastic hinge portion functions even if the swing direction is reversed to the left and right, and the building 10 is a lattice pillar 30. By providing (30A, 30B), excellent seismic resistance can be obtained.

一方、建物10では、外壁部22に内張断熱工法(充填断熱工法)及び外張断熱工法が併用されて断熱施工が行われている。外壁部22は、柱16の間でありかつラチス柱30が設けられていない部分においては、充填断熱工法が適用されて、断熱材48が配置される。断熱材48としては、硬質発泡ウレタンフォーム等の発泡プラスチック系断熱材料、グラスウール等の繊維系断熱材料などが、熱伝導率が所望の値以下となる厚さとされて用いられる。断熱材48は、2本の柱16の間(又は柱16と柱16Aとの間)において、天井梁14の下端から基礎梁12の上端の間に充填されて配置される。 On the other hand, in the building 10, the outer wall portion 22 is subjected to the heat insulating construction by using the lining heat insulating method (filling heat insulating method) and the outer heat insulating method in combination. In the outer wall portion 22 between the columns 16 and where the lattice columns 30 are not provided, the filling insulation method is applied and the heat insulating material 48 is arranged. As the heat insulating material 48, a foamed plastic-based heat insulating material such as rigid urethane foam, a fiber-based heat insulating material such as glass wool, or the like is used having a thickness such that the thermal conductivity is equal to or less than a desired value. The heat insulating material 48 is filled and arranged between the two columns 16 (or between the columns 16 and 16A) between the lower end of the ceiling beam 14 and the upper end of the foundation beam 12.

また、柱16(柱16Aを含む)と外壁パネル18(外壁パネル18Aを含む)との間には、外張断熱工法が適用されて、柱16と外壁パネル18との間の隙間に応じた厚さの断熱材50が適用される。断熱材50としては、硬質発泡ウレタンフォーム等の発泡プラスチック系断熱材料などが、柱16と外壁パネル18との隙間に応じた厚さとされて用いられる。本実施の形態では、断熱材50の厚さtを15mm(t=15)としている。なお、天井梁14等の各梁には、断熱材50と同様の断熱材料又は、繊維系断熱材料が用いられた断熱材50Aが取り付けられて屋外側が被覆される。 Further, an external heat insulating method is applied between the pillar 16 (including the pillar 16A) and the outer wall panel 18 (including the outer wall panel 18A), depending on the gap between the pillar 16 and the outer wall panel 18. A thickness of insulation 50 is applied. As the heat insulating material 50, a foamed plastic-based heat insulating material such as rigid urethane foam is used with a thickness corresponding to the gap between the pillar 16 and the outer wall panel 18. In the present embodiment, the thickness t of the heat insulating material 50 is 15 mm (t = 15). A heat insulating material similar to the heat insulating material 50 or a heat insulating material 50A using a fiber-based heat insulating material is attached to each beam such as the ceiling beam 14 to cover the outdoor side.

これに対して、ラチス柱30が設けられている部分では、断熱材52を用いている。断熱材52としては、硬質発泡ウレタンフォーム等の発泡プラスチック系断熱材料などが用いられ、厚さが外壁パネル18とラチス36との間の隙間に合わせた厚さとされている。本実施の形態では、断熱材52の厚さtを40mm(t=40)として、断熱材50よりも厚くしている。 On the other hand, the heat insulating material 52 is used in the portion where the lattice pillar 30 is provided. As the heat insulating material 52, a foamed plastic-based heat insulating material such as rigid urethane foam is used, and the thickness is set to match the gap between the outer wall panel 18 and the lattice 36. In the present embodiment, the thickness t of the heat insulating material 52 is set to 40 mm (t = 40), which is thicker than the heat insulating material 50.

ラチス柱30では、ラチス36の複数の斜め部42が上下方向に配置されており、屋内側からラチス36と外壁部22との間に挿入することが困難となっている。また、ラチス柱30の外壁パネル18側の面に断熱材52を予め取り付けておくと、外壁パネル18を取り付けたときに、外壁パネル18に対する調整位置26が断熱材52により隠れてしまう。 In the lattice pillar 30, a plurality of diagonal portions 42 of the lattice 36 are arranged in the vertical direction, and it is difficult to insert the lattice 36 between the lattice 36 and the outer wall portion 22 from the indoor side. Further, if the heat insulating material 52 is attached in advance to the surface of the lattice pillar 30 on the outer wall panel 18 side, the adjustment position 26 with respect to the outer wall panel 18 is hidden by the heat insulating material 52 when the outer wall panel 18 is attached.

ここから、ラチス柱30に取り付けられる断熱材52は、予め複数に分割されている。図4には、外壁パネル18及びラチス柱30のラチスの形状に応じて分割された断熱材52が示されている。 From here, the heat insulating material 52 attached to the lattice pillar 30 is divided into a plurality of pieces in advance. FIG. 4 shows the heat insulating material 52 divided according to the shape of the lattice of the outer wall panel 18 and the lattice pillar 30.

図2及び図4に示されるように、本実施の形態では、断熱材52を四分割したのと同様の構成とされており、上から順に断熱材52A、断熱材52B、断熱材52C、及び断熱材52Dとしている。断熱材52から分割される断熱材52A、52Cは、第1断熱材とされており、断熱材52B、52Dが第2断熱材とされている。断熱材52A、52Cは、外壁パネル18に対して設定されている調整位置26近傍が除かれ、少なくとも調整位置26に重ならないようにされて、断熱材52A、52Cに重なっていない領域において、外壁パネル18の取付調整等のための作業スペースを確保できるようにされている。 As shown in FIGS. 2 and 4, in the present embodiment, the heat insulating material 52 is divided into four parts, and the heat insulating material 52A, the heat insulating material 52B, the heat insulating material 52C, and the heat insulating material 52C are arranged in this order from the top. The heat insulating material is 52D. The heat insulating materials 52A and 52C separated from the heat insulating material 52 are used as the first heat insulating material, and the heat insulating materials 52B and 52D are used as the second heat insulating material. In the heat insulating materials 52A and 52C, the vicinity of the adjustment position 26 set for the outer wall panel 18 is excluded, and at least the heat insulating materials 52A and 52C are not overlapped with the adjustment position 26, and the outer wall is formed in a region not overlapping with the heat insulating materials 52A and 52C. A work space for adjusting the mounting of the panel 18 and the like can be secured.

また、断熱材52Bは、断熱材52Aと断熱材52Cの間を塞ぐようにされており、断熱材52Dは、断熱材52Cの下端から外壁パネル18の下端近傍(柱16の下端部の間)塞ぐようにされている。また、断熱材52Aと断熱材52Cとの間を塞ぐ断熱材52Bは、直線部44Bに重ならず、直線部44Bより長い直線部44Aに重なるように設けられる。即ち、断熱材52B、52Dは、斜め部42に対して、直線部40、44A、44Bの何れかに偏った領域に対応されている。また、断熱材52Bは、斜め部42に対して直線部44A側に片寄るように設けられている。また、断熱材52B、52Dに基づき、断熱材52A、52Cの配置位置及び長さ(上下方向の長さ)が定まっている。 Further, the heat insulating material 52B is designed to close the space between the heat insulating material 52A and the heat insulating material 52C, and the heat insulating material 52D is provided from the lower end of the heat insulating material 52C to the vicinity of the lower end of the outer wall panel 18 (between the lower ends of the pillar 16). It is designed to be closed. Further, the heat insulating material 52B that closes between the heat insulating material 52A and the heat insulating material 52C is provided so as not to overlap the straight portion 44B but to overlap the straight portion 44A longer than the straight portion 44B. That is, the heat insulating materials 52B and 52D correspond to a region biased to any of the straight portions 40, 44A and 44B with respect to the oblique portion 42. Further, the heat insulating material 52B is provided so as to be offset toward the straight portion 44A with respect to the oblique portion 42. Further, based on the heat insulating materials 52B and 52D, the arrangement position and length (length in the vertical direction) of the heat insulating materials 52A and 52C are determined.

ここから、本実施の形態では、外壁パネル18の上下方向中間部の調整位置26Aに重なる断熱材52Bは、上端位置が調整位置26Aよりも僅かに上側とされて、直線部44Bに重ならない位置とされていると共に、下端位置が直線部44に重なる位置とれている。また、調整位置26Bに重なる断熱材52Dは、上端位置が調整位置26Bよりも上側とされると共に、下端位置が外壁パネル18の下端よりも僅かに上側(断熱材52としての下端)の位置とされている。 From here, in the present embodiment, the heat insulating material 52B that overlaps the adjustment position 26A in the vertical intermediate portion of the outer wall panel 18 has an upper end position slightly above the adjustment position 26A and does not overlap the straight portion 44B. At the same time, the lower end position is set to overlap the straight line portion 44. Further, the heat insulating material 52D overlapping the adjustment position 26B has an upper end position above the adjustment position 26B and a lower end position slightly above the lower end of the outer wall panel 18 (lower end as the heat insulating material 52). Has been done.

また、断熱材52Aは、上端位置が柱16(縦柱32、34)の上端位置(連結部材38の上端位置)とされていると共に、下端位置が断熱材52Bの上端位置とされている。断熱材52Cは、上端位置が断熱材52Bの下端位置とされていると共に、下端位置が断熱材52Dの上端位置とされている。なお、断熱材52A〜52Dは、1枚の断熱材52から分割したものに限らず、各々が必要な幅及び長さに切り取られて、上下に繋げたときに、断熱材52と同様の幅及び長さとなるように形成されたものであっても良い。 Further, the upper end position of the heat insulating material 52A is the upper end position of the pillar 16 (vertical columns 32, 34) (the upper end position of the connecting member 38), and the lower end position is the upper end position of the heat insulating material 52B. The upper end position of the heat insulating material 52C is the lower end position of the heat insulating material 52B, and the lower end position is the upper end position of the heat insulating material 52D. The heat insulating materials 52A to 52D are not limited to those divided from one heat insulating material 52, and when each is cut into a required width and length and connected vertically, the width is the same as that of the heat insulating material 52. And may be formed to have a length.

以下に、本実施の形態の作用として、建物10の外壁部22の断熱施工を説明する。建物10では、骨組みを形成する柱16等の柱及び天井梁14等の梁などが予め加工される。この際、柱16と共にラチス柱30が形成される。また、ラチス柱30には、断熱材52を形成する断熱材52A〜52Dが取り付けられる。断熱材52は、断熱材52A〜52Dが、ラチス柱30の縦柱32(柱16)と縦柱34(柱16A)との間に配置されると共に、ラチス36上に隙間なく並べられる。また、断熱材52A、52Cは、ラチス柱30に取り付けられ、断熱材52B、52Dは、着脱可能にラチス柱30に仮止めされる。なお、断熱材52B、52Dの仮止めは、外壁パネル18が取り付けられた状態で、屋内側から取り外し可能とされた状態であれば良い。 Hereinafter, the heat insulating construction of the outer wall portion 22 of the building 10 will be described as the operation of the present embodiment. In the building 10, columns such as columns 16 and beams such as ceiling beams 14 that form a framework are pre-processed. At this time, the lattice pillar 30 is formed together with the pillar 16. Further, heat insulating materials 52A to 52D forming the heat insulating material 52 are attached to the lattice pillar 30. In the heat insulating material 52, the heat insulating materials 52A to 52D are arranged between the vertical pillar 32 (pillar 16) and the vertical pillar 34 (pillar 16A) of the lattice pillar 30, and are arranged on the lattice 36 without a gap. Further, the heat insulating materials 52A and 52C are attached to the lattice pillar 30, and the heat insulating materials 52B and 52D are detachably and temporarily fixed to the lattice pillar 30. The heat insulating materials 52B and 52D may be temporarily fixed as long as they can be removed from the indoor side with the outer wall panel 18 attached.

建物10は、建て方が行われて、柱16等の柱及び天井梁14等の梁などが組み付けられて骨組みが形成されると、柱16(柱16Aを含む)の外壁パネル18(外壁パネル18Aを含む)に対向する面に断熱材50が取り付けられる。なお、断熱材50は、断熱材52A、52Dと同様に予め柱16や天井梁14等に取り付けられていても良い。また、断熱材50は、少なくともラチス柱30に隣接する柱16(縦柱32、34)に取り付けられれば良い(それ以外の柱16には、屋内側から外壁パネル18との隙間に挿入しても良い)。 When the building 10 is constructed and a pillar such as a pillar 16 and a beam such as a ceiling beam 14 are assembled to form a framework, the outer wall panel 18 (outer wall panel) of the pillar 16 (including the pillar 16A) is formed. The heat insulating material 50 is attached to the surface facing (including 18A). The heat insulating material 50 may be attached to the pillar 16 or the ceiling beam 14 in advance in the same manner as the heat insulating materials 52A and 52D. Further, the heat insulating material 50 may be attached to at least the pillars 16 (vertical pillars 32, 34) adjacent to the lattice pillar 30 (the other pillars 16 are inserted into the gap between the indoor side and the outer wall panel 18). Also good).

この後、建物10の骨組みに外壁パネル18が取り付けられ、取付調整等の作業が行われる。外壁パネル18の取付調整等は、ラチス柱30に仮止めしている断熱材52B、52Dが取り外して行われる。断熱材52B、52Dは、外壁パネル18建て上げに先立って取り外されていることで、外壁パネル18の間に設定されている調整位置26の周囲が開放されて、取付調整等のための作業スペースが確保されて、外壁パネル18の出目調整等の作業が容易となる。 After that, the outer wall panel 18 is attached to the frame of the building 10, and work such as attachment adjustment is performed. The mounting adjustment of the outer wall panel 18 is performed by removing the heat insulating materials 52B and 52D temporarily fixed to the lattice pillar 30. Since the heat insulating materials 52B and 52D are removed prior to the construction of the outer wall panel 18, the periphery of the adjustment position 26 set between the outer wall panels 18 is opened, and a work space for mounting adjustment and the like is opened. Is secured, and work such as adjusting the appearance of the outer wall panel 18 becomes easy.

外壁パネル18が取り付けられると、屋内側から断熱材48、及び断熱材52B、52Dが取り付けられる。断熱材52B、52Dは、ラチス柱30に仮止めされているのが用いられる。断熱材52Bは、斜め部42の間から断熱材52A、52Cの間に挿入されて取り付けられる。また、断熱材52Dは、最下段の斜め部42の下側から挿入されて、断熱材52Cの下側に取り付けられる。これにより、ラチス柱30では、断熱材52Aと断熱材52Cの間が断熱材52Cにより塞がれ、断熱材52Cの下側が断熱材52Dにより塞がれて、縦柱32(柱16)と縦柱34(柱16A)との間の全面が断熱材52により覆われる(断熱材52が充填される)。 When the outer wall panel 18 is attached, the heat insulating material 48 and the heat insulating materials 52B and 52D are attached from the indoor side. The heat insulating materials 52B and 52D are temporarily fixed to the lattice pillar 30. The heat insulating material 52B is inserted and attached between the heat insulating materials 52A and 52C from between the diagonal portions 42. Further, the heat insulating material 52D is inserted from the lower side of the lowermost oblique portion 42 and attached to the lower side of the heat insulating material 52C. As a result, in the lattice pillar 30, the space between the heat insulating material 52A and the heat insulating material 52C is closed by the heat insulating material 52C, the lower side of the heat insulating material 52C is closed by the heat insulating material 52D, and the vertical pillar 32 (pillar 16) and the vertical column 30 are vertically connected. The entire surface between the pillar 34 (pillar 16A) is covered with the heat insulating material 52 (the heat insulating material 52 is filled).

また、断熱材48は、屋内側から柱16の間(又は柱16と柱16Aとの間)に充填されて取り付けられる。これにより、建物10は、外壁パネル18側の全周が断熱材により区画されて屋内と屋外との間が断熱される。この後、建物10では、内装パネル20が取り付けられて、内装工事の施工が行われる。 Further, the heat insulating material 48 is filled and attached between the pillars 16 (or between the pillars 16 and 16A) from the indoor side. As a result, in the building 10, the entire circumference on the outer wall panel 18 side is partitioned by the heat insulating material, and the indoor and outdoor areas are insulated. After that, in the building 10, the interior panel 20 is attached and the interior work is carried out.

このように、本実施の形態では、ラチス柱30に取り付ける断熱材52を、外壁パネル18の取付調整等を行うために予め設定されている調整位置26に重なる断熱材52B、52Dとそれ以外の部分の断熱材52A、52Cとに分けて、外壁パネル18の取り付けに先立って断熱材52A、52Cをラチス柱30に取り付けている。このため、ラチス柱30への断熱材52A、52Cの取り付けは、開放された屋外側から屋内ことができるので、屋内側から取り付ける場合に比べて作業性が向上される。 As described above, in the present embodiment, the heat insulating materials 52 to be attached to the lattice pillar 30 are overlapped with the heat insulating materials 52B and 52D which are set in advance for adjusting the mounting of the outer wall panel 18, and other heat insulating materials 52B and 52D. The heat insulating materials 52A and 52C are divided into the heat insulating materials 52A and 52C, and the heat insulating materials 52A and 52C are attached to the lattice pillar 30 prior to the attachment of the outer wall panel 18. Therefore, since the heat insulating materials 52A and 52C can be attached to the lattice pillar 30 indoors from the open outdoor side, workability is improved as compared with the case where the heat insulating materials 52A and 52C are attached from the indoor side.

また、ラチス柱30に断熱材52B、52Dが取り付けられていないことにより、外壁パネル18に対する調整位置26の周囲が開放されるので、ラチス柱30に断熱材52を取り付けて断熱性を付与する場合でも、外壁パネル18の取付調整等の作業が容易となっている。 Further, since the heat insulating materials 52B and 52D are not attached to the lattice pillar 30, the periphery of the adjustment position 26 with respect to the outer wall panel 18 is opened. Therefore, when the heat insulating material 52 is attached to the lattice pillar 30 to provide heat insulating properties. However, work such as mounting adjustment of the outer wall panel 18 is easy.

さらに、断熱材52B、52Dは、ラチス36の斜め部42を挟んで直線部40、44A、44Bの何れか側が広くなるように形成されているので、上下に隣接する斜め部42の間から外壁パネル18とラチス36との間に容易に挿入できる。しかも、断熱材52Bは、直線部44Bに重ならず、斜め部42の間が直線部44B側よりも離れた直線部44Aに重なるようにされているので、外壁パネル18とラチス36との間への挿入がより容易になっている。 Further, since the heat insulating materials 52B and 52D are formed so that any side of the straight portions 40, 44A, and 44B is widened with the oblique portion 42 of the lattice 36 interposed therebetween, the outer wall is formed between the diagonal portions 42 adjacent to the top and bottom. It can be easily inserted between the panel 18 and the lattice 36. Moreover, since the heat insulating material 52B does not overlap the straight portion 44B and the diagonal portions 42 overlap the straight portion 44A farther from the straight portion 44B side, the space between the outer wall panel 18 and the lattice 36 It is easier to insert into.

また、ラチス柱30に断熱材52A、52Cを取り付ける際、断熱材52B、52Dを仮止めして取り付けるので、断熱材52A、52Cの取り付け位置の位置決めが容易となると共に、正確に位置決めして取り付けることができる。また、断熱材52B、52Dを取り付ける場合、断熱材52A、52Cを用いて断熱材52B、52Dを容易に位置決めできる。しかも、断熱材52A〜52Dが位置決めされるので、断熱材52Bと断熱材52A、52Cとの間、及び断熱材52Cと断熱材52Dとの間に隙間が生じることがないので、断熱材52A〜52Dの間に生じた隙間により断熱性が低下するのを抑制できる。 Further, when the heat insulating materials 52A and 52C are attached to the lattice pillar 30, the heat insulating materials 52B and 52D are temporarily fixed and attached, so that the mounting positions of the heat insulating materials 52A and 52C can be easily positioned and accurately positioned and attached. be able to. Further, when the heat insulating materials 52B and 52D are attached, the heat insulating materials 52B and 52D can be easily positioned by using the heat insulating materials 52A and 52C. Moreover, since the heat insulating materials 52A to 52D are positioned, there is no gap between the heat insulating material 52B and the heat insulating materials 52A and 52C, and between the heat insulating material 52C and the heat insulating material 52D. It is possible to prevent the heat insulating property from being lowered due to the gap formed between the 52Ds.

しかも、予め断熱材52A〜52Dを加工できるので、建物10の建築現場(断熱材52の取り付け現場)において断熱材52を加工する場合に比べて高精度に加工できて、かつ取付現場で加工する必要がないので、断熱材52A〜52Dの取り付け作業が容易となる。 Moreover, since the heat insulating materials 52A to 52D can be processed in advance, the heat insulating materials 52 can be processed with higher accuracy than when the heat insulating material 52 is processed at the construction site of the building 10 (the installation site of the heat insulating material 52), and the heat insulating materials 52 are processed at the installation site. Since it is not necessary, the work of attaching the heat insulating materials 52A to 52D becomes easy.

また、本実施の形態において、断熱材52としては、任意の厚さ(例えば、断熱材50と同様の厚さtが15mm)を適用できる。このとき、本実施の形態では、断熱材50よりも厚さの厚い断熱材52を用いることで、より断熱性を向上できる。 Further, in the present embodiment, as the heat insulating material 52, an arbitrary thickness (for example, a thickness t similar to that of the heat insulating material 50 is 15 mm) can be applied. At this time, in the present embodiment, the heat insulating property can be further improved by using the heat insulating material 52 having a thickness thicker than that of the heat insulating material 50.

なお、以上説明した本実施の形態では、耐力壁として縦柱32、34の間隔が同様のラチス柱30A、30Bが用いられた建物10を例に説明したがこれに限るものではない。本発明が適用される建物の耐力壁は、縦柱の間隔が任意に設定されたものであっても良い。一対の縦柱の間隔が狭いラチス柱においても、一対の縦柱の間隔及び斜め部の間隔に応じて第1断熱材の上下方向の大きさを定めることで、一対の縦柱の間隔が比較的狭い場合もで、外壁パネルが取り付けられている状態で屋内側から第1断熱材を取り付けることができる。 In the present embodiment described above, the building 10 in which the lattice columns 30A and 30B having the same intervals of the vertical columns 32 and 34 are used as the bearing walls has been described as an example, but the present invention is not limited to this. The bearing wall of the building to which the present invention is applied may have the vertical column spacing set arbitrarily. Even in a lattice pillar where the distance between the pair of vertical columns is narrow, the distance between the pair of vertical columns can be compared by determining the vertical size of the first heat insulating material according to the distance between the pair of vertical columns and the distance between the diagonal portions. Even in a narrow space, the first heat insulating material can be attached from the indoor side with the outer wall panel attached.

10 建物
16、16A 柱
18 外壁パネル
20 内装パネル
22 外壁部
26(26A、26B) 調整位置(外壁パネルの所定位置)
28 スペーサ合板
30(30A、30B) ラチス柱(耐力壁)
32 縦柱(一方の縦柱)
34 縦柱(他方の縦柱)
36 ラチス(ラチス材)
42 斜め部
44A 直線部(一方の縦柱側の直線部)
44B 直線部(他方の縦柱側の直線部)
46 ラチスコマ(支持部材)
48、50、52 断熱材
52A、52C 断熱材(第1断熱材)
52B、52D 断熱材(第2断熱材)
10 Buildings 16, 16A Pillars 18 Outer wall panel 20 Interior panel 22 Outer wall part 26 (26A, 26B) Adjustment position (predetermined position of outer wall panel)
28 Spacer plywood 30 (30A, 30B) Lattice pillar (bearing wall)
32 vertical pillars (one vertical pillar)
34 Vertical pillar (the other vertical pillar)
36 Lattice (Lattice material)
42 Diagonal part 44A Straight part (straight part on one vertical pillar side)
44B straight part (straight part on the other vertical pillar side)
46 Lattice top (support member)
48, 50, 52 Insulation material 52A, 52C Insulation material (first insulation material)
52B, 52D insulation material (second insulation material)

Claims (4)

両端の直線部の間に斜め部と直線部とが交互に設けられたラチス材が一対の縦柱の間に配置されて、前記縦柱の一方と他方とに前記ラチス材の前記直線部が交互に接続されたラチス柱と、
前記ラチス柱の屋外側に設けられた外壁パネルと、
一対の前記縦柱の間における前記外壁パネルの所定位置を除いて前記ラチス材の前記外壁パネル側を覆う複数の第1断熱材と、
屋内側から一対の前記縦柱の間における前記ラチス材と前記外壁パネルとの間に取り付け可能とされ、前記第1断熱材の間又は下側の前記第1断熱材の下端から一対の前記縦柱の下端部の間を覆う第2断熱材と、
を備える耐力壁の断熱構造。
Lattice materials in which diagonal portions and straight portions are alternately provided between the straight portions at both ends are arranged between the pair of vertical columns, and the straight portions of the lattice material are placed on one and the other of the vertical columns. With the alternately connected lattice pillars,
The outer wall panel provided on the outdoor side of the lattice pillar and
A plurality of first heat insulating materials covering the outer wall panel side of the lattice material except for a predetermined position of the outer wall panel between the pair of vertical columns.
It can be attached between the lattice material and the outer wall panel between the pair of vertical columns from the indoor side, and the pair of vertical columns from the lower end of the first heat insulating material between the first heat insulating materials or below. A second heat insulating material that covers between the lower ends of the pillars,
Insulation structure of bearing wall equipped with.
一対の前記縦柱の一方の縦柱側の直線部が一対の前記縦柱の他方の縦柱側の直線部より長くされると共に、前記一方の縦柱と前記直線部との間に、直線部の上下方向長さより短くされた支持部材が設けられて、前記支持部材を介して前記直線部が前記一方の縦柱に接続されており、
前記第2断熱材は、前記他方の縦柱の前記直線部に重ならず、前記一方の縦柱の前記直線部に重なるように設けられている請求項1に記載の耐力壁の断熱構造。
The straight line portion on one vertical column side of the pair of vertical columns is made longer than the straight line portion on the other vertical column side of the pair of vertical columns, and a straight line is formed between the one vertical column and the straight line portion. A support member shorter than the vertical length of the portion is provided, and the straight portion is connected to the one vertical column via the support member.
The heat insulating structure for a bearing wall according to claim 1, wherein the second heat insulating material is provided so as not to overlap the straight portion of the other vertical pillar but to overlap the straight portion of the one vertical pillar.
両端の直線部の間に斜め部と直線部とが交互に設けられたラチス材が一対の縦柱の間に配置されて、前記縦柱の一方と他方とに前記ラチス材の前記直線部が交互に接続されたラチス柱、及び前記ラチス柱の屋外側に設けられた外壁パネルを含む耐力壁に断熱材を取り付ける耐力壁の断熱材取付方法であって、
一対の前記縦柱の間における前記外壁パネルの所定位置を除いて前記ラチス材の前記外壁パネル側を覆う複数の第1断熱材を、前記外壁パネルの取り付け前に前記ラチス柱に取り付け、
屋内側から一対の前記縦柱の間における前記ラチス材と前記外壁パネルとの間に取り付け可能とされ、前記第1断熱材の間又は下側の前記第1断熱材の下端から一対の前記縦柱の下端部の間までを覆う第2断熱材を、前記外壁パネルが取り付けられた前記ラチス柱の屋内側から取り付けることを特徴とする耐力壁の断熱材取付方法。
Lattice materials in which diagonal portions and straight portions are alternately provided between the straight portions at both ends are arranged between the pair of vertical columns, and the straight portions of the lattice material are placed on one and the other of the vertical columns. A method of attaching a heat insulating material to a bearing wall including alternating lattice pillars and an outer wall panel provided on the outdoor side of the lattice pillar.
A plurality of first heat insulating materials covering the outer wall panel side of the lattice material except for a predetermined position of the outer wall panel between the pair of the vertical columns are attached to the lattice columns before the attachment of the outer wall panel.
It can be attached between the lattice material and the outer wall panel between the pair of vertical columns from the indoor side, and the pair of vertical columns from the lower end of the first heat insulating material between the first heat insulating materials or below. A method for attaching a heat insulating material to a bearing wall, which comprises attaching a second heat insulating material covering up to the lower end of the pillar from the indoor side of the lattice pillar to which the outer wall panel is attached.
前記ラチス柱に予め前記第1断熱材を取付けると共に、前記第2断熱材を前記ラチス柱に着脱可能に取り付けておき、
前記外壁パネルを取付ける際に、前記ラチス柱から前記第2断熱材を取り外し、
前記外壁パネルを取付けた後に、前記第2断熱材を前記ラチス柱に取り付ける請求項3記載の耐力壁の断熱材取付方法。
The first heat insulating material is attached to the lattice pillar in advance, and the second heat insulating material is detachably attached to the lattice pillar.
When installing the outer wall panel, the second heat insulating material was removed from the lattice pillar.
The method for attaching a heat insulating material to a bearing wall according to claim 3, wherein the second heat insulating material is attached to the lattice column after the outer wall panel is attached.
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