JPH1136611A - Aseismatic reinforce frame for existing building, constructed in conventional wooden framework construction method, by using bearing steel frame and bracing steel frame from outside - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify reinforcement by providing an auxiliary foundation connected to a continuous footing, on the outside of a wall body part to be reinforced of an existing wooden framework building, fixing a steel frame reinforced by bracing and the like, onto the auxiliary foundation, and fastening the steel frame to a building frame. SOLUTION: Dimensions between a sill 13 of a bearing wall part and a second floor beam 15 and between columns 14, 14 of an existing building are measured, and a steel frame 1 is manufactured to the measured dimensions in a factory. The frame 1 is provided with a center band frame 2, bracing frames 3, and the like for reinforcement. An auxiliary reinforced concrete beam 10 provided with a steel bearing beam 5 formed of channel steel or the like is installed integrally with an existing continuous footing 9, on the outside of the continuous footing 9. The steel frame 1 is fixed to a building frame by through-bolts 19 or the like from the surface of existing exterior wall material 28, and dry building material is attached thereon for finishing. The existing wooden building can therefore hold earthquake resistance at a low cost without strain.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、木造軸組在来構法
による既存建物の耐震補強性能について、木軸筋かいの
新規挿入や構造用合板の新規打ち当てなどそれぞれの留
め付け部分における旧材との接合力に、経年劣化などに
よる不確定要素のあまりにも多いことに留意し、かつ屋
内側改修費を殆ど不要としたいため既存外壁材（例えば
モルタルなど）そのままの外側よりフレームを押し当
て、布型基礎コンクリートに受け梁と共に直結した固定
体とした上で内側の既存軸組へラグスクリューを捻じ込
み締めとし、更に布型基礎そのものも補強増しするため
鋼製受け梁も含めて厚さ１２０ｍｍ程度の抱き合わせ鉄
筋入りコンクリート梁として構築し、取り付け後のフレ
ームの表面仕上げは下地材などの補助付けをもってモル
タル吹き付けやサイディングボードやスパンドレル張り
など自由選択により、既存外壁面より戸袋状に出張る形
態をもって簡易に仕上げることも可能とする画期的な工
法である。BACKGROUND OF THE INVENTION The present invention relates to the seismic retrofitting of an existing building by a wooden frame conventional construction method, and to the use of an old material in each fastening portion such as new insertion of a wooden shaft brace or new striking of structural plywood. Note that there are too many uncertainties due to aging, etc., in the joint strength with, and because we want to make the indoor renovation cost almost unnecessary, press the frame from the outside of the existing outer wall material (for example, mortar etc.) as it is, The fixed body is directly connected to the fabric base concrete together with the support beam, and then the lag screw is screwed into the existing frame inside and tightened, and the fabric base itself itself is 120 mm thick including the steel support beam to reinforce it. Constructed as a concrete beam with reinforced reinforcing bars, the surface finish of the frame after installation is mortar sprayed or By Optionally such Ingubodo or spandrel upholstery, a revolutionary method also to allow to finish easily with a form in which jut out from the existing outer wall surface in the door pocket shape.

【０００２】[0002]

【従来の技術】従来、軸組在来構法による既存建物の耐
震補強方法は、建物の外壁材又は内壁材や床・天井材な
どを剥ぎ落として新規に木軸筋かいや構造用合板を取り
付けて耐力壁としての性能保持に施工の力点が置かれて
きていたものであるが、割高な改修費に反しその後日に
おける成果については旧材の粘り退化など接合点ごとの
不確定要因は枚挙されるのであり、効果の確認も覚束な
いままに取り付けたことの事実だけをもって一応の終止
符としているのが現状における技術的な限界であると言
っても過言ではない。2. Description of the Related Art Conventionally, a seismic retrofitting method for an existing building using a conventional frame construction method involves peeling off an outer wall material or an inner wall material, a floor / ceiling material, etc. of a building and attaching a new wooden shaft bracing or a structural plywood. Although the emphasis of construction has been placed on maintaining the performance as a load-bearing wall, the uncertain factors at each joint, such as the deterioration of old materials, have been enumerated for the results on the following day despite the expensive repair costs. Therefore, it is not an exaggeration to say that it is the technical limit at the present time that the end of the tentatively is based only on the fact that the effect has been confirmed without being aware of the effect.

【０００３】[0003]

【発明が解決しようとする課題】わが国における「木の
文化」とも言える軸組在来構法について、特に長期経年
を積み重ねた一般住宅を主とした既存建物の耐震性能を
冷静に評価しようとするとき、その設計手法と施工の手
段それぞれに自由性があるが故に法規制の強い束縛から
も免れて構造全般にまつわる融通性もまた一つの特長と
して汎用されてきたことが逆の裏目となって、かの大震
災被害での冷視を浴びることになった事実は生命の尊厳
と共に決して忘れてはならず、実効ある耐震補強技術と
しての具体的手段の使命は大であり、机上論法だけでは
解決できない多様性と不確定要素の見極めを冷徹に見透
せる現場経験力にも裏付けされた手法でなければなら
ず、本発明は既存建物の背負う宿命的な特性に促応した
簡易な手順と工費の実効性と更に補強後の耐力の持続性
など広範な目的と使命の解決を可能とするものである。[Problem to be Solved by the Invention] When trying to calmly evaluate the seismic performance of existing buildings mainly consisting of ordinary houses that have been accumulated over a long period of time, in regard to the traditional construction method that can be said to be the "tree culture" in Japan However, because the design method and the construction method are each free, the flexibility behind the entire structure has also been widely used as one of the features, which is the opposite effect, because it is free from the strong restrictions of laws and regulations. We must never forget the fact that we became cold-eyed due to the Great East Japan Earthquake, along with the dignity of life, and the mission of concrete means as an effective seismic retrofitting technology is large, and various tasks that can not be solved only by desk theory It must be a method that is supported by on-site experience that can clearly see the gender and uncertainties in a cool manner, and the present invention is a simple procedure and labor cost that responds to the fateful characteristics of the existing building It is intended to further enable the resolution of persistence such large destination and mission of strength after reinforcing the efficacy.

【０００４】[0004]

【課題を解決するための手段】上述の課題を解決するた
めの手段として、第一に対象となる既存建物の外周線上
に布型基礎コンクリート及びその外周面に複数の幅９１
０ｍｍ（通称３尺）以上の壁体部分が既設されているこ
と、更に専門技術者による建設省指針に従った「耐震精
密診断」が実施されて建物全体の中での補強すべき壁体
箇所が学術的裏付けをもって確定されていることが前提
となる。As means for solving the above-mentioned problems, first, a cloth-type foundation concrete and a plurality of widths 91 are formed on an outer peripheral line of an existing building to be targeted.
A wall part of 0 mm (commonly known as 3 feet) or more has already been installed, and a "seismic precision diagnosis" has been carried out according to the guidelines of the Ministry of Construction by a specialist engineer, and the wall part to be reinforced in the whole building It is assumed that has been determined with academic backing.

【０００５】先ず補強しようとする外壁下地の既存柱眞
々間隔寸法及び土台上端より２階梁下端までの横架材間
寸法と土台・梁の断面寸法などを正確に実地計測して鋼
製フレームの外形寸法を決定し、受け梁と共に特定工場
へ製作発注する。[0005] First, a steel frame is obtained by accurately measuring the actual spacing between existing pillars on the foundation of the outer wall to be reinforced, the dimension between horizontal members from the upper end of the base to the lower end of the second floor, and the cross-sectional dimensions of the base and the beam. The external dimensions of the product are determined, and a production order is placed with a receiving beam at a specific factory.

【０００６】工場製作されたフレーム及び受け梁の現場
取り付けは、最初に受け梁上端を土台下端線に合わせて
ケミカルアンカーにより布基礎面に平面抱き合わせとし
て緊結し、その上へフレームを外壁面に全体押し当て状
にしながら載せて抱きボルト２本をもって２体の鋼材を
緊結する。At the time of mounting the factory-made frame and receiving beam on site, first, the upper end of the receiving beam is aligned with the bottom line of the base and tied to the fabric base surface with a chemical anchor as a flat tie. The two steel members are tied together with two holding bolts while being placed in a pressed state.

【０００７】次いでフレームより内側の土台・柱・上部
梁へそれぞれラグスクリュー１２本を締め込んで布基礎
に直結した耐震抗体の基本的原型を形成する。Next, twelve lag screws are tightened into the base, column and upper beam inside the frame, respectively, to form a basic prototype of the anti-seismic antibody directly connected to the cloth base.

【０００８】次に、受け梁に支持点を持たせたアンカー
鉄筋を主に所定の寸法に切断加工させておいた鉄筋をも
って受け梁を包みこんだ梁組みとし、その外側へ型枠も
組んだ後にコンクリートを打ち込んで既存布基礎に余計
な振動などを与えることも無く基礎そのものの補強目的
も確実に果たす。[0008] Next, an anchor reinforcing bar having a supporting point on the receiving beam is formed into a beam assembly in which the receiving beam is wrapped around the reinforcing bar which is mainly cut to a predetermined size, and a formwork is also assembled outside the beam. Later, concrete is driven into the existing cloth foundation without giving any extra vibration, etc., and the purpose of reinforcing the foundation itself is surely fulfilled.

【０００９】外壁面より浮き出し取り付けとなっている
フレームは、その見込み寸法７５ｍｍの竪枠・上枠の３
周辺に木質の下地枠材をビス留めとし、更に厚さ１２ｍ
ｍの合板でフレーム平面を覆った下地として最後にモル
タル塗り吹付け仕上げなどの仕上げ材の選択施工をもっ
て一連の所期補強目的を完了する。[0009] The frame which is mounted to be raised from the outer wall surface is composed of a vertical frame and an upper frame having an estimated size of 75 mm.
A wooden base frame material is screwed around, and the thickness is 12m.
Finally, a series of intended reinforcement purposes is completed by selecting and applying a finishing material such as mortar spraying finish as a base covering the frame plane with m plywood.

【００１０】[0010]

【発明の実施の形態】本発明の実施の形態について、先
ず前提条件となるフレームの基本概念及びその特性を述
べる。わが国の歴史と風土とそして先人達の珠玉の手法
によって永く培われてきた木造軸組在来構法について、
机上の設定値をはるかに超える巨大地震に対処しようと
するとき、その構造耐力の根源となるべき市販木軸材と
しての筋かいそのものに留め付け部分での揺れ抵抗時に
起こる割り裂け現象は、天然植物の持つ宿命的限界と見
極めるべきであり、従ってその弱点を補足する確実な物
理的耐震材及び一般平易な工法として、また適材適所の
理りにも着目した鋼材による本フレーム工法こそが素朴
な原点であると確信するものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The basic concept of a prerequisite frame and its characteristics will be described first in the embodiment of the present invention. Regarding the traditional construction method of wooden frame which has been cultivated for a long time by the history and climate of our country and the gem of our predecessors,
When trying to cope with a huge earthquake that far exceeds the set value on the desk, the splitting phenomenon that occurs at the time of resistance to shaking at the part that is fastened to the braced itself as a commercially available wooden shaft that should be the root of its structural strength is natural. The frame method should be determined as the fateful limit of the plant, so this frame method using steel, which focuses on the right material in the right place, as a reliable physical seismic material and a simple method that complements its weaknesses, is simple. We are convinced that it is the origin.

【００１１】かかる概念を根底にもつ本耐震フレームの
特性の主体は、本発明者及び出願人と同一名義による平
成８年３月２１日付け実用新案登録第３０２４９９４号
によってその形状から実施例にいたるまで詳細に亙って
公報記録にも既に収められているが、後述する図面の一
部でも同登録出願図面と類似点もあるが然し、同年２月
２６日の初回以後９月２５日の終回まで公的機関におけ
る延べ６体の実大耐力試験を受けてミリ単位で変化する
加圧と抵抗体の実態を目視体験した結果、耐力上最も負
担を負うフレーム下枠のボルト貫通穴位置に厚さ１０ｍ
ｍの鉄板補強プレートを工場溶接して標準製品としてい
る点が本願対象となっているフレームの決定的特徴であ
り、更にその後最終試験成績をもってわが国唯一の権威
である（財）日本建築センターの耐力性能評定審査を平
成９年１月２０日付けで完結承認を受け、更にその評定
結果をもって同年３月２１日付けでフレーム単独の耐力
を建築基準法上限の壁倍率「５．０」として、しかも試
験成績の壁倍率が「７．３」であった余裕耐力も評価の
上で１階より２〜３階まで上下に壁体が連続する３階建
にも使用可能工法として建設大臣認定を取得し、全国い
づこの行政においても建築確認申請時には公認数値を持
つ耐力壁として本フレーム適用の承認が得られることに
なっているのである。The main subject of the characteristics of the present seismic frame having such a concept as its base is from the shape to the embodiment according to Utility Model Registration No. 3024994, filed on March 21, 1996 under the same name as the present inventor and the applicant. However, although some of the drawings described later have similarities to the drawings of the registered application, the drawings are similar to those of the same registered application, but the first one on February 26 of the same year and the last one on September 25 are shown. As a result of a full-scale proof test of a total of six bodies at public institutions until the first time, the actual situation of the pressure and the resistance that changed in millimeters was visually observed, and as a result the 10m thick
The main feature of the frame is that it is a standard product that is manufactured by welding factory-welded steel plate reinforcing plates of m m. After that, the final test results are the only authority in Japan. The performance appraisal was approved on January 20, 1997, and based on the appraisal results, the strength of the frame alone was set on March 21, 1997 as "5.0", which is the upper limit of the Building Standards Law. The wall strength of the test results was "7.3". The margin strength was evaluated, and after being evaluated, the building was approved by the Minister of Construction as a construction method that can be used on three floors where the wall is continuous from the first floor to the second to third floors. However, even in this nation, the application of this frame is to be obtained as a bearing wall with official figures when applying for building confirmation.

【００１２】但し本願の基本的対象である既存建物の耐
震改修については、個々の自主行為として建築確認審査
とは義務的内容を異にするので建設大臣認定性能数値を
明示する必要は一般例としては無いが、その改修費用を
耐震を目的として公的資金制度を利用しようとする場合
は建築確認審査に準ずる認定審査の対象とされるのであ
り、本発明の実施の形態のもつ現実の社会的な意義もま
た大なのである。However, regarding the seismic retrofitting of an existing building, which is the basic object of the present application, it is necessary to specify the performance figures certified by the Minister of Construction as a general example, since the required contents differ from the building confirmation examination as individual voluntary actions. However, if the renovation cost is to be used for public funding for the purpose of earthquake resistance, it will be subject to an accreditation examination equivalent to a building confirmation examination, and the actual social The significance is also great.

【００１３】即ち実施の形態の根幹は、長期経年による
不確定要素に満ちた既存建物の地震による大破壊から尊
い人命を護ることに尽きるのであるが、具体的な工法手
段として提案する技術者の良心にも似た信念としては、
その建物に溶け馴染む無理の無い手法であることと、施
工費の妥当性の範囲を越脱しないことの二点の明快さを
そこに居住する施主（おそらく高齢者のはず）にも平易
に諾意が得られることが最も大事であり、しかる後に施
工後の効果は絶対に地震倒壊しないということではなく
不確定要素を前提としてみても瞬時の倒壊による圧死と
いう悲劇より屋外への避難の経路を護ること又は避難の
為の時間を稼げることが可能になることが経年既存とい
う建物の宿命に対する技術の限界であることの説得も忘
れてはならず、更には大自然の力に対する畏敬の念も併
せ持ってこそ最良の信頼の絆が創出されるのであり、学
術的論拠の羅列のみが本願の主旨であってはならないと
確信するものである。In other words, the basis of the embodiment is to protect precious human lives from the great destruction of an existing building filled with uncertainties due to long-term aging due to an earthquake. As a belief similar to conscience,
It is easy for the owner (possibly an elderly person) to live in there with the clarity of two points: a method that is easy to adapt to the building and that does not exceed the reasonableness of the construction cost. The most important thing is to be able to obtain eagerness.After that, the effect after construction is not that the earthquake will never collapse, but even if the uncertainties are assumed, the path of evacuation to the outdoors will be better than the tragedy of sudden death due to instantaneous collapse. Don't forget to persuade that the ability to save time to defend or evacuate is the technological limit to the fate of a building that has existed over time, and even awe to the power of nature. Together, we can create the best bond of trust, and we are convinced that the list of academic arguments should not be the gist of this application.

【００１４】なお、本願対象フレームの原形をなす前述
の実用新案登録についてその後に申請取得した平成８年
４月１６日付け発送番号００５３８３「技術評価書」に
おいて文献１・２・３の３件を根拠として「進歩性を欠
如するもの」の範疇に該当する評価「２」との判定を下
されているが、その３件の公報写しを詳細に検分してみ
ると、部材断面ごとの細部構成をはじめとして建物軸組
との納まりディテールや最も重視すべき地震動からの力
の伝達方法つまり耐震性能を立証する固有の原理など３
件の何れとも基本構成そのものが全く異質であることは
明白であり、中には試験体の構築はもちろん現実の建築
物での実施も珍奇の域を出ない疑問とされるものもあ
り、評価のポイントが「類似点あり」との判定ならまだ
しも、「進歩性を欠如するもの」との判定では工業所有
権法そのものの権威が憂慮されると感ずるものであり、
本発明者及び出願者においては当該フレームの発案及び
現場実施が昭和５６年６月１０日を起点とする以後建設
大臣の耐震性能認定にまで至ってきた渾身の実証と実績
をもって法的対処にはいささかの躊躇もいたすものでは
なく、いま社会の大きな流れの中で本願の源流である建
築基準法においても過去の規制や形式の枠から飛躍せし
めた現実の「性能規定」へと変貌を余儀なくされている
のであり、本発明の実施の形態も「性能」つまりこの発
明がこれからの社会に如何なる形で貢献を果たせるもの
なのかとの原点の再確認をすべきものとして註述する。[0014] In addition, for the above-mentioned utility model registration, which is the original of the subject frame of the present application, the three cases of Documents 1, 2, and 3 are described in the dispatch number 005383 “Technical Evaluation Report” dated April 16, 1996, which was obtained. As a basis, it was determined that the evaluation was “2”, which falls into the category of “Lack of inventive step”, but when examining the three copies of the publication in detail, the detailed composition of each section of the member And other details such as the fitting details with the building frame and the most important method of transmitting force from seismic motion, that is, the inherent principle to prove the seismic performance
It is evident that the basic configuration itself is completely different in any of the cases. If the point is determined that there is "similarity", it is still felt that the authority of the Industrial Property Law itself is concerned in the determination that it lacks inventive step,
The present inventor and the applicant have no idea how to take legal action based on the demonstration and achievements of the whole body that the idea of the frame and the on-site implementation have been approved by the Minister of Construction since the beginning of June 10, 1981. This is not to be hesitated, and in the great current of society, the Building Standards Law, which is the source of the present application, has been forced to change from the past regulations and forms to actual "performance regulations". Therefore, it is noted that the embodiments of the present invention should be reconfirmed with "performance", that is, how the present invention can contribute to the future society.

【００１５】[0015]

【実施例】以下、添付図面に従って一実施例を説明す
る。先ず、図３の斜視図に示すごとくフレームの４周辺
主枠より既存建物の土台・柱・２階梁へそれぞれ確実に
ラグスクリュー又は貫通ボルトを打ち込められるよう現
場での詳細計測によりフレーム外形寸法を決定し、受け
梁と共に特定工場において製作を実施するが、その標準
基本形状は図１正面図のごとくとなる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described below with reference to the accompanying drawings. First, as shown in the perspective view of FIG. 3, the external dimensions of the frame are determined by detailed measurement on site so that lag screws or penetration bolts can be reliably driven from the four peripheral main frames of the frame to the foundation, pillar and second floor beam of the existing building, respectively. It is decided and manufactured at a specific factory together with the receiving beam. The standard basic shape is as shown in the front view of FIG.

【００１６】次いで、工場製作されたフレームと受け梁
の現場取り付け手順は、始めに図２の断面図に示すごと
く受け梁上端を基礎天端に水平合わせとしてケミカルア
ンカーの打ち込みによりボルト緊結をなし、次にフレー
ムを受け梁上に載せ抱きボルトにより２つの鋼材を緊結
する。Next, as shown in the sectional view of FIG. 2, the bolts are tightened by driving a chemical anchor with the upper end of the receiving beam horizontal to the top of the foundation, as shown in the sectional view of FIG. Next, the frame is placed on the receiving beam, and the two steel materials are tightened by the holding bolt.

【００１７】固定したフレームより既存柱などへのボル
ト打ち込みは、４辺枠総てをラグスクリューでも充分支
持力は得られるが、材の長期減衰も考慮してより確実な
耐力伝達を果たすため図１に示すごとく上部２本は柱へ
貫通（符号１８・１９）としたいが、内部における修復
費用の検討からむしろフレーム上枠の２本を２階床板の
一時はがしが容易に可能ならば貫通ボルトとして内側本
締めを行ない耐力向上を果たすこととする。Although the lag screw can be used to drive all four sides of the frame from the fixed frame to the existing pillars, a lag screw can provide sufficient supporting force, but it takes into account long-term damping of the material to achieve more reliable proof stress transmission. As shown in Fig. 1, we want to make the upper two through the pillars (reference numerals 18 and 19), but rather from the consideration of internal repair costs, if the two upper floor frames can be easily peeled off from the second floor, it is possible to use through bolts. The inner tightening is performed to improve the proof stress.

【００１８】補強手段の最後は、既存布型基礎に対して
受け梁よりホールインアンカーの取り付けを行なって鉄
筋を梁状に組み、型枠も組んで既存と抱き合せ梁として
コンクリートを打ち込んで一体化した耐震構造の構築目
的を完了する。At the end of the reinforcing means, a hole-in anchor is attached to the existing cloth foundation from the receiving beam, the reinforcing bars are assembled into a beam shape, the formwork is assembled, and concrete is driven into the existing fabric as a tying beam and integrated. Complete the purpose of building a seismic structure.

【００１９】なお、取り付け後のフレームの表面仕上げ
カバー方法は、図５・図６の詳細図及び図９の斜視図に
示す手法などにより、乾式建材又は同様の下地をもって
モルタル塗り吹き付けなどの自由選択により任意に仕上
げることが可能である。The method of covering the surface finish of the frame after the mounting can be freely selected, such as by spraying mortar with a dry-type building material or a similar base, by the method shown in the detailed views of FIGS. 5 and 6 and the perspective view of FIG. Can be finished arbitrarily.

【００２０】またフレームの製作工程における加工寸法
の単純統一を計るため、建物個々の高さ差異などは穴明
けの一区間だけを寸法調整部分とすることとし図１０・
１１・１２に示した。In order to simply unify the processing dimensions in the frame manufacturing process, it is assumed that only one section of the perforation is used as a dimension adjustment part for differences in the height of individual buildings.
11 and 12.

【００２１】[0021]

【発明の効果】本発明は、上述のとおり構成されている
ので次に記載する効果が得られる。木造軸組在来構法に
よる住宅を主とした既存建物の耐震補強は、一般的工法
としての新規筋かいの取り付けや構造用合板の打ち付け
など何れもその工法のために付随する内・外仕上げ部分
の取り外しから修復まで耐力そのものに全く寄与しない
工事費の負担が大きく、しかもその施工後の効果の確実
性については新旧の木軸材同士の釘などによる留め付け
の不確定要素は宿命的でさえあり、従って取り付けた行
為をもってとりあえずの目的は達成したと憶測に及ぶし
かないのであるが、それに比べ本発明による耐震フレー
ムの後付け工法は、主要耐力材を品質管理の徹底した工
場製作によるフレームとし、その効果のより高い確実性
を求めるための貫通ボルトの実行のための部分修復以外
は殆ど既存外壁のまま外側より施工できることを基本と
し、留め付けについても事後の弛みなど皆無に近いボル
ト締め方法とし、かつ既存基礎も共に一体となす補強構
築は、既存建物の特性に無理なく馴染ませた長期に安定
した耐震力を保持できる効果を持つものである。Since the present invention is constructed as described above, the following effects can be obtained. Seismic retrofitting of existing buildings, mainly houses, using wooden frame conventional construction methods, including the installation of new braces as a general construction method and the application of internal and external finishing parts that are attached to the construction method, such as striking plywood for structural use There is a large burden of construction costs that do not contribute to the proof stress at all from removal to restoration, and the uncertainty of the fastening of the old and new wooden shafts with nails etc. is fatal even with regard to the certainty of the effect after construction Yes, therefore, it is only speculation that the purpose achieved by the act of attachment has been achieved, but in contrast, the retrofitting method of the seismic frame according to the present invention is to make the main bearing material a frame manufactured by a factory with thorough quality control, Basically, it can be installed from the outside with almost no existing external walls except for partial repairs for the execution of through bolts for higher reliability of the effect In addition, the bolting method used for bolting is almost nonexistent after the fact, and the existing foundation is also integrated with the reinforcement construction, which has the effect of maintaining a long-term stable seismic force that has been reasonably adapted to the characteristics of the existing building With

【図面の簡単な説明】[Brief description of the drawings]

【図１】フレーム及び受け梁の標準形態を示す正面図で
ある。FIG. 1 is a front view showing a standard form of a frame and a receiving beam.

【図２】フレーム下枠と受け梁の取り合いを示す全身断
面図である。FIG. 2 is a whole body sectional view showing the engagement between a lower frame of a frame and a receiving beam.

【図３】フレームと受け梁及び抱き合わせコンクリート
梁と既存部分を示す斜視図。FIG. 3 is a perspective view showing a frame, a receiving beam, a tying concrete beam, and an existing part.

【図４】フレーム下枠と受け梁・抱き合わせコンクリー
ト梁の詳細を示す断面図であるなお符号２９は床下作業
が可能な場合、貫通ボルトとすることを示す。FIG. 4 is a cross-sectional view showing details of a frame lower frame, a receiving beam and a tying concrete beam. Reference numeral 29 indicates that a through bolt is used when work under the floor is possible.

【図５】フレーム竪枠と表面仕上げ材などを示す平断面
詳細図である。FIG. 5 is a detailed plan sectional view showing a vertical frame and a surface finishing material.

【図６】フレーム上枠と水切り笠木及び防水シーリング
納まりを示す断面詳細図であるFIG. 6 is a detailed cross-sectional view showing an upper frame, a drainer, and a waterproof sealing fit.

【図７】フレーム取り付けの背後壁が布基礎と共にＬ又
はＴ字状に連結する耐力の固定し易い場合の抱き合わせ
コンクリート梁の延長長さを示す平面図である。FIG. 7 is a plan view showing an extension length of a tying concrete beam in a case where a rear wall of a frame attachment is easily connected to an L or T shape together with a cloth foundation and has a proof strength.

【図８】フレーム取り付けの背後壁が独立の場合の抱き
合わせコンクリート梁の延長長さを示す平面図である。FIG. 8 is a plan view showing an extended length of a tying concrete beam when a rear wall of the frame is independent.

【図９】フレーム表面仕上げ及び抱き合わせコンクリー
ト梁を示す斜視図である。FIG. 9 is a perspective view showing frame surface finishing and tying concrete beams.

【図１０】フレーム取り付けの背後壁幅寸法が１，３６
５ｍｍ（４．５尺）の場合のフレーム及び受け梁の形状
を示す正面図である。FIG. 10 shows a rear wall width dimension of 1,36 attached to a frame.
It is a front view which shows the shape of a frame and a receiving beam in case of 5 mm (4.5 feet).

【図１１】フレーム取り付けの背後壁幅寸法が１，８２
０ｍｍ（６．０尺）の場合を示す。FIG. 11 shows a rear wall width dimension of 1,82 for frame attachment.
The case of 0 mm (6.0 scale) is shown.

【図１２】フレーム取り付けの背後壁幅寸法が２，７３
０ｍｍ（９．０尺）の場合を示す。FIG. 12 shows a rear wall width dimension of 2,73 for frame attachment.
The case of 0 mm (9.0 scale) is shown.

【符号の説明】[Explanation of symbols]

１．鋼材フレーム主枠 Ｌ − ７５ｍｍ×
７５ｍｍ× ６ｍｍ ２．鋼材フレーム中帯枠 ２Ｌ − ４０ｍｍ×
４０ｍｍ× ５ｍｍ ３．鋼材フレーム筋かい枠 Ｌ − ４０ｍｍ×
４０ｍｍ× ５ｍｍ （以上を溶接一体枠として溶融亜鉛メッキどぶ漬けを施
し工場製品とする） ５．鋼材受け梁 ［ −２５０ｍｍ×９０ｍ
ｍ×９ｍｍ×１３ｍｍ ６．鋼材補強スチフナー ［ −２４０ｍｍ×７５ｍ
ｍ×６ｍｍ （以上を溶接一体梁として溶融亜鉛メッキどぶ漬けを施
し工場製品とする） ７．抱きボルト φ１６ｍｍ Ｌ ５
０ｍｍ（亜鉛メッキ） ８．ケミカルアンカー φ１６ｍｍ Ｌ１５
０ｍｍ（亜鉛メッキ） ９．既存布型基礎コンクリート １０．抱き合わせ補強鉄筋コンクリート梁 １１．ホールインアンカー用穴 φ１５ｍｍ １２．鉄筋 ＳＤ１０ｍｍ １３．既存土台 １４．既存柱 １５．既存２階梁 １６．ラグスクリュー用穴 φ１５ｍｍ １７．ラグスクリューボルト φ１２ｍｍ Ｌ１
００ｍｍ（亜鉛メッキ） １８．貫通ボルト用穴 φ１９ｍｍ １９．貫通ボルト φ１６ｍｍ Ｌ１
５０ｍｍ（亜鉛メッキ） ２０．フレーム表面仕上げ材 ２１．仕上げコーナー材 （規格型） ２２．水切り笠木 （板金物） ２３．防水シール材 ２４．下地枠材 ２５．１階床板 ２６．１階内装壁 ２７．２階床板 ２８．既存外壁材 ２９．布基礎貫通ボルト φ１６ｍｍ Ｌ１
５０ｍｍ（亜鉛メッキ） ３０．間柱位置 ３１．「製造検査済証」通し番号刻印打ち込みアルミプ
レート（かしめ留め）1. Steel frame main frame L-75mm ×
75 mm x 6 mm Steel frame middle belt frame 2L-40mm ×
40 mm x 5 mm Steel frame braced frame L-40mm ×
40mm x 5mm (The above is treated as a one-piece welded frame and subjected to hot-dip galvanizing soaking in a factory product.) Steel receiving beam [-250mm × 90m
mx 9 mm x 13 mm Steel reinforcement stiffener [-240mm × 75m
mx 6 mm (The above is treated as a welded integrated beam and subjected to hot dip galvanizing and soaked into factory products.) Holding bolt φ16mm L5
0mm (zinc plating) Chemical anchor φ16mm L15
0 mm (zinc plating) Existing cloth-type foundation concrete 10. 10. Tie-up reinforced concrete beams Hole for hole-in anchor φ15mm 12． Reinforcing bar SD10mm 13. Existing base 14. Existing pillars 15. Existing 2nd floor beam 16. Hole for lag screw φ15mm 17． Lag screw bolt φ12mm L1
00 mm (zinc plating) Hole for through bolt φ19 mm 19. Through bolt φ16mm L1
50 mm (zinc plating) Frame surface finishing material 21. Finish corner material (standard type) 22. Drainer skirting (sheet metal) 23. Waterproof sealing material 24. Base frame material 25.1 floor board 26.1 floor interior wall 27.2 floor board 28. Existing exterior wall material 29. Cloth foundation penetration bolt φ16mm L1
50 mm (zinc plating) Stud position 31. "Manufacturing Inspection Certificate" serial number stamped aluminum plate (clamped)

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.⁶ 識別記号 ＦＩ Ｅ０４Ｂ 2/56 ６２２ Ｅ０４Ｂ 2/56 ６２２Ｈ ６３１ ６３１Ｂ ６３１Ｄ ６３１Ｈ ６４３ ６４３Ａ ──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04B 2/56 622 E04B 2/56 622H 631 631B 631D 631H 643 643A

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 木造軸組在来構法による住宅を主とし
た既存建物を、耐震補強をするに際し、建物外周におけ
る既設の開口部を生かしながら壁面部分（通称３尺幅）
での補強を基本とし、かつ内部における床・壁・天井な
どの取り外しから修復に至る補強のための直接費以外の
付帯費用を節減するため補強手段は総て外部からのみで
可能とし、既存建物の構造部分で比較的信頼度の高い外
周の布型基礎コンクリートの外面に、溝形鋼材 ２５
０ｍｍ×９０ｍｍ×９ｍｍ×１３ｍｍ・長さ１，２００
ｍｍを平状に抱き合せてケミカルアンカー（瞬間的薬液
凝固剤により固定する）にて緊結して受け梁となし、そ
の上部へ予め特定工場において製作した鋼製筋かい枠
（以下フレームと呼称する）を外壁面に平に外当て状に
しながら載せて所定の穴合わせのうえ径１６ｍｍの抱き
ボルト２本をもって受け梁とフレームを一体として緊結
し、フレーム竪枠より既存柱へ、上下枠より既存２階梁
及び土台へそれぞれ径１２ｍｍ・長さ１００ｍｍ（柱断
面寸法の３分の２以上に届く長さ）のラグスクリューを
合計１２本捻じ込み締めすることにより、基礎コンクリ
ートより連続固定体として建物の地震揺れを確実に受け
止めることを可能とし、更に基礎コンクリート自体の長
期経年の自然劣化の恐れと法規制の及ばなかった頃の無
鉄筋耐力を補足する観点から鋼製受け梁そのものを包み
込ませた有鉄筋の抱き合わせコンクリートの打ち込みに
まで至る耐震架構。1. A wall portion (commonly known as 3 shaku width) of an existing building mainly composed of a wooden frame traditional construction method, while making use of an existing opening on the outer periphery of the building in order to reinforce earthquake resistance.
In order to reduce incidental costs other than direct costs for reinforcement from removal of floors, walls, ceilings, etc. inside the building to repair, all means of reinforcement are possible only from outside, and existing buildings On the outer surface of the cloth-type foundation concrete on the outer periphery which is relatively reliable in the structural part of
0mm x 90mm x 9mm x 13mm, length 1,200
mm are tied together in a flat shape, tied together with a chemical anchor (fixed with an instantaneous liquid coagulant) to form a receiving beam, and a steel bracing frame (hereinafter, referred to as a frame) previously manufactured at a specific factory on the upper side. ) Is placed flat on the outer wall surface in the form of an outer patch, and after a predetermined hole is aligned, the receiving beam and the frame are tightened together using two holding bolts of 16 mm in diameter. As a continuous fixed body from the foundation concrete, tighten a total of 12 lag screws with a diameter of 12 mm and a length of 100 mm (length reaching at least two-thirds of the column cross section) to the second floor beam and the base. To reliably receive earthquake sway, and to supplement the fear of long-term natural deterioration of the foundation concrete itself and the strength of non-reinforcing steel bars when laws and regulations were not reached. Seismic Frame ranging from a point to the driving of steel received tying Yu rebar, which was wrapped the beam itself concrete.