JP5305722B2 - External wall reinforcement device for existing wooden buildings - Google Patents

External wall reinforcement device for existing wooden buildings Download PDF

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JP5305722B2
JP5305722B2 JP2008117144A JP2008117144A JP5305722B2 JP 5305722 B2 JP5305722 B2 JP 5305722B2 JP 2008117144 A JP2008117144 A JP 2008117144A JP 2008117144 A JP2008117144 A JP 2008117144A JP 5305722 B2 JP5305722 B2 JP 5305722B2
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wall
existing wooden
nail
reinforcement device
external wall
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JP2009264051A (en
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精久 徳田
榮次 槇谷
俊一 島田
幹雄 松本
克彦 遠藤
直 岡本
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Nippon Kasei Chemical Co Ltd
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Nippon Kasei Chemical Co Ltd
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Description

本発明は、既設木造建物における外壁の補強装置に関するものである。   The present invention relates to a reinforcing device for an outer wall in an existing wooden building.

既設の木造建物の外壁、例えば、モルタル外壁を補強するには、該モルタル外壁の表面にＦＲＰ樹脂層を層設し、該ＦＲＰ樹脂層をネジ釘でラス板（木摺）に固着するようにした方法が知られている（例えば、特許文献１）。   In order to reinforce an outer wall of an existing wooden building, for example, a mortar outer wall, an FRP resin layer is provided on the surface of the mortar outer wall, and the FRP resin layer is fixed to a lath board (wood slide) with a screw nail. Such a method is known (for example, Patent Document 1).

特開２００４−２４４８４１号公報JP 2004-244841 A

前記従来例の、被補強層であるモルタル外壁は、補強層であるＦＲＰ樹脂層とラス板でいわば挟持されて補強効果を得ようとするものであるが、ラス板は古い木造建物においては腐蝕している場合が多々あり、従って、期待するほどの補強効果を得られない場合がある。   In the conventional example, the outer wall of the mortar that is the reinforced layer is sandwiched between the FRP resin layer that is the reinforcing layer and the lath plate so as to obtain a reinforcing effect, but the lath plate is corroded in an old wooden building. In many cases, the reinforcement effect as expected is not obtained.

また、モルタル外壁の表面にＦＲＰ樹脂層を層設するため、モルタル外壁に生じている亀裂や凹凸を該ＦＲＰ樹脂層で吸収させるにはきわめて煩雑な作業を必要とし、必ずしも経済的ではない。   In addition, since the FRP resin layer is provided on the surface of the mortar outer wall, a very complicated operation is required to absorb cracks and irregularities generated in the mortar outer wall with the FRP resin layer, which is not always economical.

本発明は、斯様な従来例を勘案し、施工が簡単で、補強効果の期待できる装置を提供することを目的として創案したものである。   The present invention has been made in view of such a conventional example with the object of providing an apparatus that is easy to construct and can be expected to have a reinforcing effect.

外壁の表面の適所に設けた透孔にエポキシ樹脂や無収縮モルタルを充填してスペーサを設け、前記外壁の表面に重ね合わせた構造用合板を、前記スペーサを通じた釘で柱に止着した、構成とするのである。 A through hole provided at a suitable position on the surface of the outer wall was filled with epoxy resin or non-shrink mortar to provide a spacer, and a structural plywood superimposed on the surface of the outer wall was fixed to a pillar with a nail through the spacer, It is configured.

本発明によれば、構造用合板を外壁に重ね合わせて柱に釘着することにより外壁を簡単に補強することができ、既存壁を撤去することなく耐振補強が可能であると共に、廃棄物を大幅に削減でき、しかも、スペーサを貫通して柱に打ち込まれた釘の止着されるものであるから、補強層によって釘が補強され、地震などの外力の負荷による釘が折り曲がりや応力伝達ロスを防ぐことが可能となり、従って、釘着したにも係わらず、補強効果の期待できる既設木造建物の外壁の補強装置を提供できる。 According to the present invention, it is possible to easily reinforce the outer wall by stacking the structural plywood on the outer wall and nailing it to the pillar, and it is possible to reinforce the vibration without removing the existing wall, and to dispose of the waste. It can be greatly reduced, and the nail that is driven into the pillar through the spacer is fixed, so the nail is reinforced by the reinforcing layer, and the nail is bent and transmitted stress due to external force such as earthquake Therefore, it is possible to provide a reinforcing device for an outer wall of an existing wooden building that can be expected to have a reinforcing effect even though it is nailed.

図面は、本発明の、既設木造建物における外壁の補強装置の一実施例を示し、図１は一部欠截正面図、図２は一部欠截斜視図、図３は断面図である。   The drawings show an embodiment of the outer wall reinforcing apparatus for an existing wooden building according to the present invention. FIG. 1 is a partially cutaway front view, FIG. 2 is a partially cutaway perspective view, and FIG.

図で示す既設木造建物の外壁１は、柱２の屋外面に多数の木摺（ラス板）３，…を縦方向に並べて止着し、該木摺３，…屋外面側にモルタル層４を設けて構成したもの（大壁）である。そして、この外壁１の適所すなわち、前記柱２と重なり合う部分に、モルタル層４の表面から柱２の屋外面に達するように透孔５を開設し、該透孔５に樹脂製の保持筒６を嵌挿し、該保持筒６にエポキシ樹脂（揺変性）７を充填してスペーサ１１を設けて外壁１と柱２との間に介在させ、外壁１の表面に重ね合わせた構造用合板８を、前記スペーサ１１のエポキシ樹脂７を貫通させて先端を前記柱２に嵌入させた釘（ねじ釘でも良い）９によって柱２に止着、固定したものである。   The outer wall 1 of the existing wooden building shown in the figure is attached to the outdoor surface of the pillar 2 by arranging a large number of wooden rails (lassboards) 3,... In the vertical direction and fixing the wooden rails 3,. (Large wall). Then, a through hole 5 is formed at a suitable position of the outer wall 1, that is, at a portion overlapping with the column 2 so as to reach the outdoor surface of the column 2 from the surface of the mortar layer 4, and a resin holding cylinder 6 is formed in the through hole 5. Is inserted, and the holding cylinder 6 is filled with an epoxy resin (thixotropic) 7 and a spacer 11 is provided between the outer wall 1 and the pillar 2, and the structural plywood 8 is superimposed on the surface of the outer wall 1. The spacer 11 is fixed and fixed to the column 2 with a nail (or a screw nail) 9 having a tip inserted into the column 2 through the epoxy resin 7.

なお、実施例の場合は、補強するための外壁１の高さ幅に対し前記構造用合板８の縦幅が不足するときに、該不足分を満たす他の構造用合板８´を、前記構造用合板８の上側に重ね合わせ、前記と同様にして外壁１に取付けると共に、両合板８，８´の表面に、しかも、該合板８，８´にわたすようにして連続繊維シート１０（アラミド繊維、ガラス繊維又は炭素繊維など高強度の繊維で成る）を合板８，８´の境界に沿ってＸ字状に配置し接着して合板８、８´同士を一体的にしてあり、連続繊維シート１０を交差部が合板８，８´間の境界上に存するようにＸ字状に配置することにより、合板８，８´同士の一体的性は維持され、耐振強度が増大する。   In the case of the embodiment, when the longitudinal width of the structural plywood 8 is insufficient with respect to the height of the outer wall 1 for reinforcement, another structural plywood 8 ′ satisfying the shortage is replaced with the structure. Overlaid on the upper side of the plywood 8 and attached to the outer wall 1 in the same manner as described above, the continuous fiber sheet 10 (aramid fiber) is provided on the surfaces of both the plywoods 8 and 8 'and over the plywoods 8 and 8'. , Made of high-strength fibers such as glass fiber or carbon fiber) are arranged in an X shape along the boundary between the plywoods 8 and 8 ′ and bonded together, and the plywoods 8 and 8 ′ are integrated with each other, and a continuous fiber sheet By arranging 10 in an X shape so that the crossing portion exists on the boundary between the plywoods 8 and 8 ', the integrity of the plywoods 8 and 8' is maintained, and the vibration resistance strength is increased.

なお、前記保持筒６（金属製でも良く、樹脂製にこだわる必要はない）は、スペーサ１１を構成する樹脂（実施例ではエポキシ樹脂）材７を透孔５に充填する際、該透孔５より当該樹脂材が流失するのを防ぐためのもので、樹脂材がゲル或いは粘土状のように保形性を保ち、経時的に硬化するものであれば充分で、この保持筒６の適用は省略しても良い。   The holding cylinder 6 (which may be made of metal and does not need to be made of resin) is used when the resin material 7 (epoxy resin in the embodiment) constituting the spacer 11 is filled in the through hole 5. It is sufficient to prevent the resin material from being washed away, and it is sufficient if the resin material retains its shape retaining property like a gel or clay and is cured with time. May be omitted.

また、実施例の装置は、既設のモルタル外壁１（大壁）の表面の適所に、柱２に達する透孔５を設け、該透孔５に保持筒６を嵌挿して（保持筒６の適用は省略して良い）、前記モルタル外壁１内に埋設し、該保持筒６（透孔５）内に、パテ状のエポキシ樹脂７を充填し、しかる後、外壁１の表面に構造用合板８を重ね合わせて、該合板８の外側から釘９を当て、その先端を前記エポキシ樹脂７を通じて前記柱２に打ち込んで柱２に止着し、エポキシ樹脂を硬化させることによって得たものである。 Moreover, the apparatus of an Example provides the through-hole 5 which reaches the pillar 2 in the appropriate position of the surface of the existing mortar outer wall 1 (large wall), and inserts the holding cylinder 6 in this through-hole 5 (the holding cylinder 6 Application may be omitted), embedded in the outer wall 1 of the mortar, filled with a putty-like epoxy resin 7 in the holding cylinder 6 (through hole 5), and then on the surface of the outer wall 1 for structural plywood 8, the nail 9 is applied from the outside of the plywood 8, the tip thereof is driven into the pillar 2 through the epoxy resin 7 and fixed to the pillar 2, and the epoxy resin is cured. .

本発明を適用できる外壁としては、モルタル化粧の他に、サイディング（モルタル層に代る）を化粧材として用いたものが考えられるが、その他の場合でも不都合はなく、スペーサは未硬化状態のものを保持筒（又は透孔）に充填して硬化させて構成する場合と、固体状のもの（釘９挿通用の挿通孔を設けたものと設けないものがあり、後者の場合は釘を打ち込んでも割裂しないものを選択すべきであるが）がある。
As the outer wall to which the present invention can be applied, in addition to mortar makeup, those using siding (in place of the mortar layer) as a cosmetic material can be considered, but there are no inconveniences in other cases, and the spacer is in an uncured state. There are cases in which a holding cylinder (or through-hole) is filled and cured, and solid ones (one with a through hole for inserting a nail 9 and one without a nail 9 are provided. In the latter case, a nail is driven. But you should choose one that doesn't split).

一部欠截正面図。Partially missing front view. 一部欠截斜視図。FIG. 断面図。Sectional drawing.

符号の説明Explanation of symbols

１ 外壁
２ 柱
５ 透孔
７ エポキシ樹脂
８ 構造用合板
９ 釘
１１ スペーサ 1 outer wall 2 pillar 5 through-hole 7 epoxy resin 8 structural plywood 9 nail 11 spacer

Claims (1)

外壁の表面の適所に設けた透孔にエポキシ樹脂や無収縮モルタルを充填してスペーサを設け、前記外壁の表面に重ね合わせた構造用合板を、前記スペーサを通じた釘で柱に止着した、既設木造建物の外壁の補強装置。 A through hole provided at a suitable position on the surface of the outer wall was filled with epoxy resin or non-shrink mortar to provide a spacer, and a structural plywood superimposed on the surface of the outer wall was fixed to a pillar with a nail through the spacer, A reinforcement device for the outer wall of an existing wooden building.
JP2008117144A 2008-04-28 2008-04-28 External wall reinforcement device for existing wooden buildings Active JP5305722B2 (en)

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JP5305722B2 true JP5305722B2 (en) 2013-10-02

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JP6539040B2 (en) * 2014-12-10 2019-07-03 株式会社Ａｉ建築都市計画事務所 Indoor shelter and method of manufacturing indoor shelter

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01263364A (en) * 1988-04-14 1989-10-19 Eiwa Jiyuuken:Kk Prevention of drop of mortar of wooden construction
JP3022737B2 (en) * 1994-03-31 2000-03-21 積水化学工業株式会社 Handrail mounting structure and handrail mounting method
JPH11350700A (en) * 1998-06-10 1999-12-21 Toho Kenzai:Kk Peeling prevention jig for internal/external wall tile of building and the like
JP2002004546A (en) * 2000-06-22 2002-01-09 Katsuya Hiraoka Method for execution of interior and exterior finish work for structure by facing material (tile, stone, artificial imitation stone, and wooden facing material)
JP2005282191A (en) * 2004-03-30 2005-10-13 Daiwa House Ind Co Ltd Mounting structure of mounting member for outer-wall face material or the like through inorganic fiber heat-insulating material and inorganic fiber heat-insulating material for holding
JP2006125125A (en) * 2004-11-01 2006-05-18 Dandori Vis Kk Screw reinforcing member
JP4583231B2 (en) * 2005-04-26 2010-11-17 株式会社Ｄｇｐ Injection nozzle for pinning method and pinning method using the same
JP2007191998A (en) * 2006-01-17 2007-08-02 Fusao Sakano Antiseismic reinforcing method for wooden building

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