JP2009221780A - Column reinforcing apparatus for wooden building - Google Patents

Column reinforcing apparatus for wooden building Download PDF

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Publication number
JP2009221780A
JP2009221780A JP2008069315A JP2008069315A JP2009221780A JP 2009221780 A JP2009221780 A JP 2009221780A JP 2008069315 A JP2008069315 A JP 2008069315A JP 2008069315 A JP2008069315 A JP 2008069315A JP 2009221780 A JP2009221780 A JP 2009221780A
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Japan
Prior art keywords
mounting plate
column
fiber sheet
continuous fiber
foundation concrete
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Application number
JP2008069315A
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Japanese (ja)
Inventor
Noriaki Harada
憲明 原田
Eiji Makitani
榮次 槇谷
Shunichi Shimada
俊一 島田
Toshiaki Kato
俊明 加藤
Takayuki Toyama
孝行 遠山
Takashi Moriwaki
貴志 森脇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ASAHI BONDO KOGYO KK
MG TAISHIN GIJUTSU KENKYUSHO KK
TANAKAGUMI KK
Nippon Kasei Chemical Co Ltd
Fibex Co Ltd
Kaneshin Co Ltd
Nihon Kasei Co Ltd
Original Assignee
ASAHI BONDO KOGYO KK
MG TAISHIN GIJUTSU KENKYUSHO KK
TANAKAGUMI KK
Nippon Kasei Chemical Co Ltd
Fibex Co Ltd
Kaneshin Co Ltd
Nihon Kasei Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by ASAHI BONDO KOGYO KK, MG TAISHIN GIJUTSU KENKYUSHO KK, TANAKAGUMI KK, Nippon Kasei Chemical Co Ltd, Fibex Co Ltd, Kaneshin Co Ltd, Nihon Kasei Co Ltd filed Critical ASAHI BONDO KOGYO KK
Priority to JP2008069315A priority Critical patent/JP2009221780A/en
Publication of JP2009221780A publication Critical patent/JP2009221780A/en
Withdrawn legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a column reinforcing apparatus coping with a pull-out force while absorbing a level difference even if there is a level difference between a column and a foundation concrete. <P>SOLUTION: The lower part of an upper mounting plate 2 made of metal is placed over the surface of the upper end of a continuous fiber sheet 1 and bonded, and a laterally intermediate part of a lower mounting plate 3 made of metal is placed over the surface of the lower end of the continuous fiber sheet 1 and bonded to constitute a reinforcing member A. The upper mounting plate 2 of the reinforcing member A is fixed, at its upper part, to a column (p) erected on foundation concrete (c) through a sill (b), and the lower mounting plate 3 is fixed, at both lateral side face parts, to the foundation concrete (c) respectively by fixing rods 4, 8 to stretch the continuous fiber sheet 1 between the foundation concrete (c) and the column (p). <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、地震等により柱側に作用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 reinforcing frame is fixed to each surface of the column side and the foundation concrete side with bolts, and a tightening bolt is screwed onto the reinforcing frame 、, and a tightening nut screwed into this is screwed and tightened. There is a structure that copes with the pulling force acting on the column side by, for example, Patent Document 1 (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、柱側の補強枠を柱および土台（柱と基礎コンクリートの間に介在する）と基礎コンクリートに固定した構造を取るため、柱と土台との間で段差が生じているときは補強枠の素材上、該段差の吸収を行うことができず、補強性能に支障を来たすときがある。   The above conventional structure has a structure in which the reinforcing frame on the column side is fixed to the column and foundation (intervening between the column and the foundation concrete) and the foundation concrete, so that there is a step between the column and the foundation. May not be able to absorb the step due to the material of the reinforcing frame, which may hinder the reinforcing performance.

本発明は、斯様な従来例の欠点に着目し、前記の段差の吸収機能を備え、後付け施工を簡単に行うことのできる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 has been devised for the purpose of providing a column reinforcing device that has the above-described step-absorbing function and can be easily retrofitted, paying attention to the disadvantages of such conventional examples.

連続繊維シートの上端部に、下部を表面に重ね合わせて金属製の上取付板を、また、下端部に、左右方向の中間部を表面に重ね合わせて金属製の下取付板をそれぞれ接着して補強材を構成し、該補強材の前記上取付板を、その上部において土台を介して基礎コンクリート上に立設した柱に、また、前記下取付板を、左右方向の両側面部において前記基礎コンクリートにそれぞれ止着杆で固着して、前記連続繊維シートを前記基礎コンクリートと柱との間に張設したことを基本的手段とする。   At the upper end of the continuous fiber sheet, the lower part is superimposed on the surface, and the metal upper mounting plate is bonded to the lower end, and the metal lower mounting plate is bonded to the lower end and the middle part in the left-right direction on the surface. The upper mounting plate of the reinforcing material is formed on a pillar erected on the foundation concrete via a base at the upper part, and the lower mounting plate is mounted on the foundation on both side surfaces in the left-right direction. The basic means is that each continuous fiber sheet is stretched between the foundation concrete and the column after being fixed to the concrete with a fastening rod.

本発明によれば、引張強度が高く、靭性の強い繊維シートを用いたもので、耐引抜き力を高めた柱装置を得られ、柱と基礎コンクリートとの間にある段差も容易に吸収でき、従って、後付け施工に好適な柱補強装置を提供できる。   According to the present invention, using a fiber sheet with high tensile strength and strong toughness, it is possible to obtain a column apparatus with enhanced pull-out resistance, and easily absorb the step between the column and the foundation concrete, Therefore, a column reinforcing device suitable for retrofitting can be provided.

また、上下の取付板は止着杆で柱等に取付ける以外の部分で繊維シートに接着したものであるから、止着杆の存在による連続繊維シートの断面欠損のない装置を得られ、耐久性に優れた補強装置を提供できる。   In addition, since the upper and lower mounting plates are bonded to the fiber sheet at a portion other than being attached to the pillar or the like with a fastening rod, a device without a cross-sectional defect of the continuous fiber sheet due to the presence of the fastening rod can be obtained, and the durability An excellent reinforcing device can be provided.

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１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, and FIG. 2 is a sectional view of FIG.

本発明は、補強材Ａを基礎コンクリートｃと該基礎コンクリートｃ上に土台ｂを介して立設した柱ｐにまたいで装置して構成したもので、実施例は、予め形成した補強材Ａを、土台ｂに柱ｐを組付けた柱装置に所謂後付け施工で取付けて本発明装置としたものである。   In the present invention, the reinforcing material A is configured by straddling the foundation concrete c and the pillar p standing on the foundation concrete c via the base b. The apparatus of the present invention is attached to a pillar apparatus in which a pillar p is assembled to a base b by so-called retrofitting.

補強材Ａは、縦長帯状の連続繊維シート１の上端部１ａに下部２ａを表面に重ね合わせて金属製（耐候性があることが望ましく、実施例は鋼製）の上取付板２を、また、下端部１ｂに、左右方向の中間部３ａを表面に重ね合わせて前記上取付板２と同様に、金属製の下取付板３をそれぞれ接着剤（実施例は、エポキシ系樹脂接着剤で止着したが、耐候性が有り、接着強度の有るものであれば自在に選択して良い）で接着して構成したものである。   The reinforcing material A is made of an upper mounting plate 2 made of metal (desirably weather-resistant, preferably made of steel) by superimposing the lower portion 2a on the surface of the upper end portion 1a of the vertically long continuous fiber sheet 1. In the same manner as the upper mounting plate 2, the metal lower mounting plate 3 is bonded to the lower end portion 1 b on the surface with an intermediate portion 3 a in the left-right direction on the surface. However, it may be selected freely if it has weather resistance and has adhesive strength.

補強材Ａを構成する前記連続繊維シート１は、繊維が、縦糸方向（本件の場合は上下方向）にのみ配置され（横糸は通常の糸）、柱ｐの横幅（見付け幅）内に納まる横幅を成している。また、必要があれば、エポキシ樹脂を含浸させて、前記繊維束のそれぞれに均等な引張力を効率良く、伝達させるようにすることも可能である。この連続繊維シート１とで前記補強材Ａを構成する上取付板２は、前記下部２ａに対応する上部２ｂにビス４（釘でも良いし、ボルトとナットを用いても良い）で柱ｐに止着するための、適宜数の透孔６を設け、下取付板３の前記中間部３ａを介する両側部３ｂ，３ｂには同様に、適宜数の透孔７，…を設けてビス８で基礎コンクリートｃに止着するようにしてある。   The continuous fiber sheet 1 constituting the reinforcing material A has a width in which fibers are arranged only in the warp direction (vertical direction in this case) (the weft is a normal thread) and fits within the width (finding width) of the pillar p. Is made. Further, if necessary, it is possible to impregnate an epoxy resin to efficiently transmit a uniform tensile force to each of the fiber bundles. The upper mounting plate 2 that constitutes the reinforcing material A together with the continuous fiber sheet 1 is attached to the column p with a screw 4 (a nail or a bolt and a nut may be used) on an upper part 2b corresponding to the lower part 2a. An appropriate number of through holes 6 are provided for fastening, and similarly, an appropriate number of through holes 7,... Are provided on both side portions 3b, 3b through the intermediate portion 3a of the lower mounting plate 3 with screws 8. It is designed to be fixed to the foundation concrete c.

なおまた、上取付板２の、連続繊維シート１と重なり合う下端縁部と、下取付板３の連続繊維シート１と重なり合う上端縁部を、各板２，３の折り返し方向に屈曲するようにして屈曲縁９，１０を設け、上、下取付板２，３が平板体であることによって備えている前記下端縁部と上端縁部のエッジの連続繊維シート１との接触を回避して接触により起り勝ちな連続繊維シート１の切断を防ぐようにしてある。   Further, the lower edge of the upper mounting plate 2 that overlaps the continuous fiber sheet 1 and the upper edge of the lower mounting plate 3 that overlaps the continuous fiber sheet 1 are bent in the folding direction of the plates 2 and 3. By providing the bent edges 9 and 10 and avoiding contact between the lower end edge portion and the upper end edge portion of the continuous fiber sheet 1 provided by the upper and lower mounting plates 2 and 3 being flat plates, The continuous fiber sheet 1 that tends to occur is prevented from being cut.

そして、補強材Ａは、基礎コンクリートｃに下取付板３の両側部３ｂ，３ｂに設けた透孔７にビス８を通すようにしてねじ込んで該下取付板３を基礎コンクリートｃに止着し、連続繊維シート１にテンションをかけるようにして上取付板２を柱ｐ表面に重ね合わせ、上部３ｂに形成した透孔６を通じてビス４を該柱ｐにねじ込み止着することにより、土台ｂを介して柱ｐと基礎コンクリートｃにまたいで連続繊維シート１が張設された実施例装置を得るのである。   Then, the reinforcing material A is screwed into the through hole 7 provided in the both side portions 3b and 3b of the lower mounting plate 3 so as to pass the screws 8 and the lower mounting plate 3 is fixed to the basic concrete c. Then, the upper mounting plate 2 is superposed on the surface of the pillar p so as to apply tension to the continuous fiber sheet 1, and screws 4 are screwed and fixed to the pillar p through the through holes 6 formed in the upper part 3b. In this way, the embodiment device in which the continuous fiber sheet 1 is stretched across the pillar p and the foundation concrete c is obtained.

なお、下取付板３を、中間部３ａにおいて連続繊維シート１と接着し、両側部３ｂ，３ｂにおいて基礎コンクリートｃに止着するようにしたのは、上取付板２の場合のように、アラミド繊維シート１との接着部（下部２ａ）と柱ｐに対する止着部（上部２ｂ）を縦列（縦方向に並べる程）の長さ（高さ）を、殆んどの場合が基礎コンクリート１から得られないからで、斯様な構成にすることにより基礎コンクリートｃが低くとも、本装置は適用でき、使用勝手上の制約を受けない。   The lower mounting plate 3 is bonded to the continuous fiber sheet 1 at the intermediate portion 3a and fixed to the foundation concrete c at both side portions 3b and 3b, as in the case of the upper mounting plate 2. In most cases, the length (height) of the column (approached in the longitudinal direction) of the bonded portion (lower portion 2a) to the fiber sheet 1 and the fastening portion (upper portion 2b) to the column p is obtained from the basic concrete 1. Therefore, even if the foundation concrete c is low by adopting such a configuration, the present apparatus can be applied and there is no restriction on usability.

更に、下取付板において、取付板の長さを短縮するために連続繊維シートを表側に折り返して、表側でも取付板に接着させる方法も可能である。   Furthermore, in the lower mounting plate, in order to shorten the length of the mounting plate, a method of folding the continuous fiber sheet to the front side and bonding it to the mounting plate on the front side is also possible.

連続繊維シートの材料は、アラミド繊維、ガラス繊維又は炭素繊維など、構造物を補強する目的で使用される、高強度の繊維であれば、何を用いても不都合はない。   The material of the continuous fiber sheet is not inconvenient to use as long as it is a high-strength fiber used for the purpose of reinforcing the structure, such as aramid fiber, glass fiber, or carbon fiber.

正面図。Front view. 図１の断面図。Sectional drawing of FIG.

符号の説明Explanation of symbols

Ａ 補強材
１ 連続繊維シート
２ 上取付板
３ 下取付板
４ ビス
８ ビス
ｂ 土台
ｃ 基礎コンクリート
ｐ 柱 A Reinforcement material 1 Continuous fiber sheet 2 Upper mounting plate 3 Lower mounting plate 4 Screw 8 Screw b Base c Foundation concrete p Column

Claims (1)

連続繊維シートの上端部に、下部を表面に重ね合わせて金属製の上取付板を、また、下端部に、左右方向の中間部を表面に重ね合わせて金属製の下取付板をそれぞれ接着して補強材を構成し、該補強材の前記上取付板を、その上部において土台を介して基礎コンクリート上に立設した柱に、また、前記下取付板を、左右方向の両側面部において前記基礎コンクリートにそれぞれ止着杆で固着して、前記連続繊維シートを前記基礎コンクリートと柱との間に張設した、木造建物の柱補強装置。   At the upper end of the continuous fiber sheet, the lower part is superimposed on the surface, and the metal upper mounting plate is bonded to the lower end, and the metal lower mounting plate is bonded to the lower end and the middle part in the left-right direction on the surface. The upper mounting plate of the reinforcing material is formed on a pillar erected on the foundation concrete via a base at the upper part, and the lower mounting plate is mounted on the foundation on both side surfaces in the left-right direction. A column reinforcing device for a wooden building, in which the continuous fiber sheet is stretched between the foundation concrete and the column, each fixed to the concrete with a fastening rod.
JP2008069315A 2008-03-18 2008-03-18 Column reinforcing apparatus for wooden building Withdrawn JP2009221780A (en)

Priority Applications (1)

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JP2008069315A JP2009221780A (en) 2008-03-18 2008-03-18 Column reinforcing apparatus for wooden building

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012167538A (en) * 2012-02-14 2012-09-06 Goji Saito High-strength tension-applicable binding and reinforcing method of wooden structure
JP7494357B2 (en) 2020-06-30 2024-06-03 ミサワホーム株式会社 Earthquake-resistant reinforcement device, mounting structure for earthquake-resistant reinforcement device, and earthquake-resistant reinforcement method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012167538A (en) * 2012-02-14 2012-09-06 Goji Saito High-strength tension-applicable binding and reinforcing method of wooden structure
JP7494357B2 (en) 2020-06-30 2024-06-03 ミサワホーム株式会社 Earthquake-resistant reinforcement device, mounting structure for earthquake-resistant reinforcement device, and earthquake-resistant reinforcement method

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