JP2009221779A - Pillar reinforcement device of wooden building - Google Patents

Pillar reinforcement device of wooden building Download PDF

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Publication number
JP2009221779A
JP2009221779A JP2008069313A JP2008069313A JP2009221779A JP 2009221779 A JP2009221779 A JP 2009221779A JP 2008069313 A JP2008069313 A JP 2008069313A JP 2008069313 A JP2008069313 A JP 2008069313A JP 2009221779 A JP2009221779 A JP 2009221779A
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Japan
Prior art keywords
reinforcing base
base frame
hollow
reinforcing
portland cement
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JP2008069313A
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Japanese (ja)
Inventor
Masaaki Hanya
Toshiaki Kato
Kazumasa Kosugi
Eiji Makitani
Shunichi Shimada
Hideo Tanabe
俊明 加藤
公明 半谷
一正 小杉
俊一 島田
榮次 槇谷
英男 田辺
Original Assignee
Asahi Bondo Kogyo Kk
Faibekkusu Kk
Kaneshin:Kk
Mg Taishin Gijutsu Kenkyusho:Kk
Nippon Kasei Kk
Tanakagumi:Kk
アサヒボンド工業株式会社
ファイベックス株式会社
日本化成株式会社
株式会社Mg耐震技術研究所
株式会社カネシン
株式会社田中組
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Application filed by Asahi Bondo Kogyo Kk, Faibekkusu Kk, Kaneshin:Kk, Mg Taishin Gijutsu Kenkyusho:Kk, Nippon Kasei Kk, Tanakagumi:Kk, アサヒボンド工業株式会社, ファイベックス株式会社, 日本化成株式会社, 株式会社Mg耐震技術研究所, 株式会社カネシン, 株式会社田中組 filed Critical Asahi Bondo Kogyo Kk
Priority to JP2008069313A priority Critical patent/JP2009221779A/en
Publication of JP2009221779A publication Critical patent/JP2009221779A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a pillar reinforcement device having a novel structure which is resistant to the occurrence of secular changes such as loosening of a fastening nut, and which makes possible easy retrofit execution. <P>SOLUTION: A reinforcing base frame 1 is fixed to the pillar 8 and the base concrete 6, and the reinforcing base frame 1 is provided with a hollow part 2 of which the face width gradually becomes smaller in the direction of the sides opposite to each other. Then the hollow part 2 of the reinforcing base frame 1 is filled with portland cement mortar 9, and the end of a bar steel 10 which extends between the reinforcing base frames 1, 1 is inserted to the Portland cement mortar 9 through an opening end on the sides opposite to each other of the reinforcing base frame 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、木造建物の柱補強装置に関するものである。   The present invention relates to a column reinforcing device for a wooden building.
例えば、柱側と基礎コンクリート側のそれぞれの表面に金属製の補強枠をボルトで固着し、該補強枠杆に締付けボルトをわたして、これに螺合した締付けナットを螺合、締付けて、地震等により生じる柱に負荷する引抜き力に対処するようにした構造のものがある(例えば、特許文献1)。   For example, a metal reinforcement frame is fixed to each surface of the column side and foundation concrete side with bolts, and a tightening bolt is screwed onto the reinforcement frame 杆, and a tightening nut screwed into this is screwed and tightened. There is a structure that copes with the pulling force that is applied to the pillar caused by the above (for example, Patent Document 1).
特開平10−169210号公報JP 10-169210 A
前記従来のものは、締付けナットの締付けによって補強状態を確保するため、該ナットが緩んで当該確保にそごが生じ、補強性能に支障を来たすときがある。   The above-mentioned conventional one secures a reinforced state by tightening the tightening nut, so that the nut is loosened and a jaw is generated in the securing, which may impair the reinforcing performance.
本発明は、斯様な従来例の欠点に着目し、ナットが緩むなどの経時変化が生じにくく、後付け施工を簡単に行うことのできる、斬新な構造の柱補強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 focuses on the disadvantages of such a conventional example, and an object thereof is to provide a column reinforcing device with a novel structure that is less likely to change with time such as loosening of a nut and can be easily retrofitted. It was created.
柱と基礎コンクリートに、互いに対向する側方向に見込み幅が漸次狭くなる中空部を備えた補強基枠を固定し、該補強基枠の前記中空部に充填した充填固化材に、前記補強基枠の、前記互いに対向する側の開口端を通じて前記補強基枠間にまたがる棒鋼の端部を挿着した構成とするのである。   A reinforcing base frame having a hollow portion whose expected width is gradually narrowed in a lateral direction facing each other is fixed to the pillar and the foundation concrete, and the reinforcing base frame is attached to the solidified material filled in the hollow portion of the reinforcing base frame. The end portion of the steel bar straddling between the reinforcing base frames is inserted through the opening ends on the opposite sides.
本発明によれば、地震時などに柱に引抜き力が作用したとき、補強基枠に充填した充填固化材が、補強基枠間において先細状のくさび状の硬化した塊となって補強基枠から抜けることがなく、従って、耐引抜き性の優れた、充填固化材と棒鋼を利用した柱の補強装置を得られる。しかも、ナットが緩む等の経時変化が少なく、後付け施工が簡単で、柱と基礎コンクリートの表面間の段差を吸収して施工でき、耐震強度の有る斬新な構造の、木造建物の柱の補強装置を提供できる。   According to the present invention, when a pulling force is applied to a column during an earthquake or the like, the filled solidified material filled in the reinforcing base frame becomes a tapered wedge-shaped hardened lump between the reinforcing base frames. Therefore, it is possible to obtain a column reinforcing device using a filled solidified material and a steel bar having excellent pull-out resistance. In addition, there is little change over time such as loosening of nuts, easy retrofitting, absorption of steps between the surface of the pillar and the foundation concrete, construction of a novel structure with seismic strength, and a novel structure that strengthens pillars in wooden buildings Can provide.
図面は、本発明に係る木造建物の柱補強装置の一実施例を示し、図1は正面図、図2は図1a−a線断面図、図3は補強基枠の斜視図、図4は施工時の状態の一部の断面図、図5は施工時の状態の他の一部の断面図である。   The drawings show an embodiment of a column reinforcing device for a wooden building according to the present invention. FIG. 1 is a front view, FIG. 2 is a sectional view taken along the line 1a-a, FIG. 3 is a perspective view of a reinforcing base frame, and FIG. FIG. 5 is a partial cross-sectional view of the state at the time of construction, and FIG. 5 is another partial cross-sectional view of the state at the time of construction.
図中、1は金属製の補強基枠で、補強基枠1は中央の方形の中空部2と該中空部2の両側に突設した平板状の取付部3,3で成り、横長金属板に断面ほぼハット形鋼状の金属枠を金属枠の翼部において横長金属板に熔接して形成したもので、中空部2は、内径が上下方向の一方の開口端2´から他方の開口端2´´方向に漸次縮径し、実施例の中空部2は、該中空部2を構成する前部片2aが前記一方の開口端2´から他方の開口端2´´に至るに従って該前部片2aに相対する後部片2b(前記横長金属板で構成する)に漸次近接する傾斜状を成して見込み方向幅が一方の開口端2´から他方の開口端2´に至るに従って漸次縮径する一方、見付け方向に相対して中空部2を構成する側部片2c,2c同士が一方の開口端2´から他方の開口端2´´に至るに従って漸次近接する傾斜状を成して見付け方向幅においても一方の開口端2´から他方の開口端2´´に至るに従って漸次縮径する形態を採るが、見込み方向幅において漸次縮径する内腔部形状であれば良く、従って、中空部の形態は実施例のように角筒状に限定する必要なく、円筒その他形態は制約されない。   In the figure, reference numeral 1 denotes a metal reinforcing base frame. The reinforcing base frame 1 is composed of a central rectangular hollow portion 2 and flat mounting portions 3 and 3 projecting on both sides of the hollow portion 2, and is a horizontally long metal plate. A metal frame having a substantially hat-shaped steel cross section is welded to a horizontally long metal plate at the wing portion of the metal frame, and the hollow portion 2 has an inner diameter from one open end 2 'in the vertical direction to the other open end. The diameter of the hollow portion 2 of the embodiment is gradually reduced in the 2 ″ direction, and the front portion 2a constituting the hollow portion 2 is moved forward from the one opening end 2 ′ to the other opening end 2 ″. As the width of the prospective direction gradually decreases from one opening end 2 'to the other opening end 2' with an inclined shape gradually approaching the rear piece 2b (consisting of the horizontally long metal plate) facing the piece 2a. On the other hand, the side pieces 2c and 2c constituting the hollow portion 2 are opposed to each other in the direction of finding, and the other opening end 2 is formed from the one opening end 2 '. In the form of an inclination gradually approaching as far as ′, the diameter gradually decreases from one opening end 2 ′ to the other opening end 2 ″ even in the width in the finding direction, but gradually decreases in the prospective direction width. Therefore, the shape of the hollow portion need not be limited to a rectangular tube shape as in the embodiment, and the shape of the cylinder or the like is not limited.
補強基枠1は、取付部3に設けた透孔4にねじ釘5,5´を貫通させて基礎コンクリート6と、該基礎コンクリート6上に土台7を介して立設した柱8のそれぞれの適所に締め付けたもので、基礎コンクリート6側の補強基枠1と柱8側の補強基枠1(図示では、符号1Aで示す)は、前記他端2´´側を相対向する側に配し、すなわち、互いに近接する方向に見込み幅が漸次狭くなる中空部2を備えた一方の補強基枠1を基礎コンクリート6側に、他方の補強基枠1(1A)を柱8側にそれぞれ止着し、該補強基枠1,1に充填したポルトランドセメントモルタル13中に中空部2の互いに相対向する開口端2´´,2´´を通じて棒鋼10の端部10a,10aを挿着して棒鋼10を補強基枠1,1を介して基礎コンクリート6と柱8に介在させ、該棒鋼10でこれらを連結してある。   The reinforcing base frame 1 includes a foundation concrete 6 by passing through screw holes 5 and 5 ′ through a through hole 4 provided in the attachment portion 3, and a column 8 erected on the foundation concrete 6 via a base 7. Fastened in place, the reinforcing base frame 1 on the foundation concrete 6 side and the reinforcing base frame 1 on the column 8 side (indicated by reference numeral 1A in the figure) are arranged on the opposite sides of the other end 2 ″ side. That is, one reinforcing base frame 1 provided with a hollow portion 2 whose expected width gradually narrows in a direction approaching each other is stopped on the foundation concrete 6 side, and the other reinforcing base frame 1 (1A) is stopped on the column 8 side. The end portions 10a and 10a of the steel bar 10 are inserted into the Portland cement mortar 13 filled in the reinforcing base frames 1 and 1 through the opening ends 2 ″ and 2 ″ of the hollow portion 2 facing each other. Steel bar 10 is interposed between foundation concrete 6 and column 8 through reinforcing base frames 1 and 1 So, we are connected to them in rod steel 10.
実施例装置を得るに、基礎コンクリート6と柱8のそれぞれの適所に、前記の通り、ねじ釘5,5´を用いて補強基枠1,1(1A)を固着し、該補強基枠1,1(1A)間に、端部10aを挿入するようにして棒鋼10を補強基枠1,1間にわたすようにして組合わせ、該組合わせ作業と、基礎コンクリート6と柱8のそれぞれに固着した状態の補強基枠1,1(1A)の下面を、蓋板18,18´を該基枠1,1(1A)に仮止めして塞ぐ作用とを相前後して行って、棒鋼10の組合わせ状態を適宜の支持手段で保持し、各補強基枠1,1(1A)の中空部2に上側からポルトランドセメントモルタル13を充填し、硬化後、棒鋼の支持手段を撤去し、また、蓋板18,18´を取り外す(必ずしも取り外す必要はない)ことにより実施例装置を得るのである。   In order to obtain the apparatus of the embodiment, the reinforcing base frames 1 and 1 (1A) are fixed to the base concrete 6 and the pillar 8 at appropriate positions using the screw nails 5 and 5 'as described above. , 1 (1A), the end 10a is inserted and the steel bar 10 is combined between the reinforcing base frames 1 and 1, and the combination work is performed on each of the foundation concrete 6 and the column 8 respectively. The bottom surface of the reinforced base frame 1, 1 (1A) in the fixed state is combined with the action of temporarily fixing the lid plates 18 and 18 'to the base frame 1, 1 (1A) to close the bottom plate. The combination state of 10 is held by an appropriate support means, and the Portland cement mortar 13 is filled into the hollow portion 2 of each reinforcing base frame 1, 1 (1A) from above, and after hardening, the support means of the steel bar is removed, Also, the embodiment can be realized by removing the lid plates 18 and 18 '(not necessarily required). It is to obtain a location.
なお、実施例装置を得るために用いた蓋板18,18´は、図4、図5で示すように接着テープ19を用いて補強基枠1に仮止めしたが、該手段は自由に選択すれば良く、図4で示す、柱8に固着した補強基枠1に用いた蓋板18は、切込み18aを備え、該切込み18aに棒鋼10を係合するようにして棒鋼10の干渉を避けて、補強基枠に重ね合わせて仮止めし、ポルトランドセメントモルタル13の中空部2からの脱落を防ぐようにしている。   The lid plates 18 and 18 'used for obtaining the example device were temporarily fixed to the reinforcing base frame 1 using an adhesive tape 19 as shown in FIGS. 4 and 5, but the means can be freely selected. The cover plate 18 used in the reinforcing base frame 1 fixed to the column 8 shown in FIG. 4 includes a notch 18a, and the bar 10 is engaged with the notch 18a to avoid interference of the bar 10. Thus, the Portland cement mortar 13 is prevented from falling off from the hollow portion 2 by being superposed on the reinforcing base frame and temporarily fixed.
また、棒鋼は、鉄筋に用いる所謂異形棒鋼を用いているが、これは硬化後のポルトランドセメントモルタル13中から抜けにくいものを用いる趣旨で、従って、単なる丸棒状のものに部分的に大径にした鍔(アンカーとなる)を設けたものや折り曲げ加工したもの或いは棒杆の端部にナットを螺合したもの等々抜けにくい効果を期待できるものであればその形態は問わない。もっとも、直棒状のものであってもポルトランドセメントモルタルと一体的になれば何等不都合はないから、その是非は試験によって決めれば良い。   In addition, the steel bar is a so-called deformed steel bar used for a reinforcing bar, which is intended to use a hard-to-remove material from the Portland cement mortar 13 after hardening. Any form can be used as long as it can be expected to have an effect that it is difficult to come off, such as one provided with a hook (becomes an anchor), one bent, or one in which a nut is screwed onto the end of a bar rod. However, even if it is a straight rod, there is no inconvenience if it is integrated with Portland cement mortar, so the right or wrong can be determined by testing.
実施例ではポルトランドセメントモルタルを用いたが、その組成は問わず中空部(クサビ形隙間)2に充填できる流動性を持ち、充填後は固化しアンカーを保持することはできる材料を意味する充填固化材であれば良く(中空部2内で充填後固化し、アンカーが抜けないように保持できるだけの強度が必要であり、その強度は概ね圧縮強度で20N/mm2程度以上である)、充填固化材としては実施例のポルトランドセメントモルタルの外に、アルミナセメント、混合セメントなどの水硬性セメントや、エポキシ樹脂、MMA樹脂等使用することができ、適宜、骨材、体質顔料、流動化材、増粘剤等を添加することができる。また、充填固化材の流動性はモルタル状、スラリー状、グリス状、ペースト状など中空部2内に充填できる状態のものであれば使用できる。   In the examples, Portland cement mortar was used, but the composition has a fluidity that can be filled into the hollow portion (wedge-shaped gap) 2 regardless of the composition, and after filling, it means a material that can solidify and hold the anchor. It is sufficient that the material is solid (after solidification in the hollow portion 2 and needs to be strong enough to hold the anchor so that it does not come off, and the strength is generally about 20 N / mm 2 or more in terms of compressive strength). In addition to the Portland cement mortar of the examples, hydraulic cement such as alumina cement and mixed cement, epoxy resin, MMA resin, etc. can be used, and aggregate, extender pigment, fluidizing material, thickening as appropriate. An agent or the like can be added. Further, the fluidity of the filled solidified material can be used as long as it can be filled in the hollow portion 2 such as mortar, slurry, grease, or paste.
正面図。Front view. 図1a−a線断面図。FIG. 補強基枠の斜視図。The perspective view of a reinforcement base frame. 施工時の状態の一部の断面図。Sectional drawing of a part of the state at the time of construction. 施工時の状態の他の一部の断面図。Sectional drawing of the other part of the state at the time of construction.
符号の説明Explanation of symbols
1 補強基枠
2 中空部
6 基礎コンクリート
8 柱
10 棒鋼
13 ポルトランドセメントモルタル
DESCRIPTION OF SYMBOLS 1 Reinforcement base frame 2 Hollow part 6 Foundation concrete 8 Column 10 Steel bar 13 Portland cement mortar

Claims (1)

  1. 柱と基礎コンクリートに、互いに対向する側方向に見込み幅が漸次狭くなる中空部を備えた補強基枠を固定し、該補強基枠の前記中空部に充填した充填固化材に、前記補強基枠の、前記互いに対向する側の開口端を通じて前記補強基枠間にまたがる棒鋼の端部を挿着した、木造建物の柱補強装置。   A reinforcing base frame having a hollow portion whose expected width is gradually narrowed in a lateral direction facing each other is fixed to the pillar and the foundation concrete, and the reinforcing base frame is attached to the solidified material filled in the hollow portion of the reinforcing base frame. A column reinforcing device for a wooden building, in which end portions of steel bars straddling between the reinforcing base frames are inserted through opening ends on the opposite sides.
JP2008069313A 2008-03-18 2008-03-18 Pillar reinforcement device of wooden building Withdrawn JP2009221779A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878948A (en) * 2015-04-07 2015-09-02 淮海工学院 Reinforced concrete frame beam hogging moment region reinforcing method and reinforcing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104878948A (en) * 2015-04-07 2015-09-02 淮海工学院 Reinforced concrete frame beam hogging moment region reinforcing method and reinforcing device
CN104878948B (en) * 2015-04-07 2017-06-16 淮海工学院 A kind of reinforcement means of rc-frame-beam hogging moment area

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