JPH10238134A - Fixing method of end section of carbon-fiber sheet - Google Patents

Fixing method of end section of carbon-fiber sheet

Info

Publication number
JPH10238134A
JPH10238134A JP9046060A JP4606097A JPH10238134A JP H10238134 A JPH10238134 A JP H10238134A JP 9046060 A JP9046060 A JP 9046060A JP 4606097 A JP4606097 A JP 4606097A JP H10238134 A JPH10238134 A JP H10238134A
Authority
JP
Japan
Prior art keywords
fiber sheet
carbon fiber
carbon
extension
round bar
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP9046060A
Other languages
Japanese (ja)
Inventor
Michiaki Itou
倫顕 伊藤
Original Assignee
Hazama Gumi Ltd
株式会社間組
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.)
Filing date
Publication date
Application filed by Hazama Gumi Ltd, 株式会社間組 filed Critical Hazama Gumi Ltd
Priority to JP9046060A priority Critical patent/JPH10238134A/en
Publication of JPH10238134A publication Critical patent/JPH10238134A/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00Working measures on existing buildings
    • E04G23/02Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
    • E04G23/0218Increasing or restoring the load-bearing capacity of building construction elements
    • E04G2023/0251Increasing or restoring the load-bearing capacity of building construction elements by using fiber reinforced plastic elements
    • E04G2023/0262Devices specifically adapted for anchoring the fiber reinforced plastic elements, e.g. to avoid peeling off

Abstract

PROBLEM TO BE SOLVED: To prevent slipping-off from a clamping contact-bonding section of a carbon- fiber sheet stretched onto a specified object by folding the carbon-fiber sheet along an extending member abutted while being crossed at right angles in the fibrous direction of the carbon-fiber sheet and clamping and contact-bonding another extending member abutted while being crossed at right angles in the fibrous direction to the section to be reinforced. SOLUTION: A round bar 11 is abutted against the carbon-fiber sheet 10 stretched onto a section to be reinforced 9 such as a beam, a wall, a floor, etc., in a building structure as an extending member so as to be crossed at right angles in the fibrous direction of the sheet 10, and the carbon-fiber sheet 10 is folded along the round bar 11 so as to include the round bar 11. An angle plate 12 is abutted against the carbon- fiber sheet 10 in the folded section as another extending member so as to be crossed at right angles in the fibrous direction of the sheet 10, and the plate 12 is clamped and contact-bonded to the section to be reinforced 9. Accordingly, the plate 12 retains the round bar 11 and the carbon-fiber sheet 10 in the periphery of the round bar 11, slipping-off from the clamping contact-bonding section of the carbon-fiber sheet can be prevented surely, and the tensile force of the carbon-fiber sheet can be displayed maximally.

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】本発明は炭素繊維シートの端
部固定方法、更に詳細には補強対象部に張設される炭素
繊維シートの端部を固定する方法に関する。
The present invention relates to a method for fixing an end portion of a carbon fiber sheet, and more particularly to a method for fixing an end portion of a carbon fiber sheet stretched over a portion to be reinforced.
【0002】[0002]
【従来の技術】近年、例えばコンクリート構造物を補強
する方法の一つとして、その支柱、梁、壁、床等に炭素
繊維シートを張設して、その構造物を補強する工法が知
られている。
2. Description of the Related Art In recent years, as one method of reinforcing a concrete structure, for example, a method of reinforcing a carbon fiber sheet on columns, beams, walls, floors, etc. of the structure has been known. I have.
【0003】一般に炭素繊維シートは、炭素繊維を一方
向に引き揃えてシート状にしたものであって、その繊維
方向の引張力に対してのみ強固な対抗力を有しているも
のの、その繊維方向と直交する方向においては簡単に割
れやすい性質を有しており、更にコンクリートとの接着
性が悪いといった性質を有している。
[0003] In general, a carbon fiber sheet is a sheet formed by aligning carbon fibers in one direction to form a sheet. Although the carbon fiber sheet has a strong opposing force only against the tensile force in the fiber direction, the fiber In a direction perpendicular to the direction, it has a property that it is easily broken, and further has a property that adhesion to concrete is poor.
【0004】従って、巻設が可能な支柱のような補強対
象部に張設される炭素繊維シートの端部の固定にあって
は、巻設された炭素繊維シートの両端部を接着すること
により強固な接着力を確保している。
[0004] Therefore, in fixing the end of the carbon fiber sheet stretched over the portion to be reinforced, such as a windable pillar, by bonding both ends of the wound carbon fiber sheet. Strong adhesion is ensured.
【0005】他方、梁、壁、床等の巻設が不可能な補強
対象部に張設される炭素繊維シートの端部の固定にあっ
ては、炭素繊維シートを巻設することができないため、
例えば図4(a)(b)及び図5(a)(b)に示すよ
うに、補強対象部9(梁、壁、床等)に張設した炭素繊
維シート10の端部に、断面がアングル状に形成されて
いるアングルプレート32或いは単に平板状に形成され
ているプレート32’を当接し、このプレート32,3
2’を補強対象部9に対してボルト締め(13)して緊
締圧着する方法が採られている。
[0005] On the other hand, in fixing an end portion of a carbon fiber sheet which is stretched over a portion to be reinforced, such as a beam, a wall, or a floor, where the winding is impossible, the carbon fiber sheet cannot be wound. ,
For example, as shown in FIGS. 4 (a) and 4 (b) and FIGS. 5 (a) and 5 (b), a cross section is formed at the end of the carbon fiber sheet 10 stretched over the reinforcement target portion 9 (beam, wall, floor, etc.). The angle plate 32 formed in an angle shape or the plate 32 ′ formed in a flat plate shape is brought into contact with the plate 32, 3.
2 'is bolted (13) to the portion 9 to be reinforced and tightened and crimped.
【0006】[0006]
【発明が解決しようとする課題】しかしながら、梁、
壁、床等の巻設が不可能な補強対象部に対する炭素繊維
シートの上述したような緊締圧着による端部の固定の態
様にあっても、補強対象部9に張設された炭素繊維シー
ト10に対して引張力Aが付加されると、図4(c)及
び図5(c)に示すように、炭素繊維シート10が上記
プレート32,32’による緊締圧着部分から抜け出し
てしまうといった欠点がある。
However, the beam,
Even in the mode of fixing the end portion of the carbon fiber sheet to the portion to be reinforced which cannot be wound, such as a wall or a floor, by the above-described tightening and crimping, the carbon fiber sheet 10 stretched over the portion to be reinforced 9 4C and FIG. 5C, the drawback is that the carbon fiber sheet 10 comes out of the tightened and crimped portion by the plates 32 and 32 'as shown in FIGS. 4 (c) and 5 (c). is there.
【0007】本発明は上述の従来の技術の欠点に着目
し、これを解決せんとしたものであり、その目的は、補
強対象部に張設される炭素繊維シートが緊締圧着部分か
ら抜け出すのを確実に防止し、炭素繊維シートが有する
引張力を最大限に発揮させることができる炭素繊維シー
トの端部固定方法を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks of the prior art and to solve the problem. The purpose of the present invention is to prevent a carbon fiber sheet stretched over a portion to be reinforced from coming out of a tightened and crimped portion. An object of the present invention is to provide a method for fixing an end portion of a carbon fiber sheet, which can reliably prevent the occurrence of the tension and maximize the tensile force of the carbon fiber sheet.
【0008】[0008]
【課題を解決するための手段】本発明は上記の目的に鑑
みてなされたものであり、その要旨とするところは、
梁、壁、床等の巻設が不可能な補強対象部に張設される
炭素繊維シートの端部を固定する方法であって、補強対
象部に張設される炭素繊維シートにその繊維方向と直交
するように第1の延長部材を当接する工程と、この第1
の延長部材を内包するようにこれに沿って上記炭素繊維
シートを折り畳む工程と、この折り畳まれた部分の炭素
繊維シートにその繊維方向と直交するように第2の延長
部材を当接する工程と、この第2の延長部材を上記補強
対象部に対して緊締圧着する工程と、を含むことを特徴
とする炭素繊維シートの端部固定方法にある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned object, and the gist thereof is as follows.
A method of fixing an end portion of a carbon fiber sheet stretched on a reinforcement target portion where it is impossible to wind a beam, a wall, a floor, or the like, wherein the fiber direction is fixed on the carbon fiber sheet stretched on the reinforcement target portion. Contacting the first extension member so as to be orthogonal to
A step of folding the carbon fiber sheet along the extension member so as to include the extension member, and a step of contacting the second extension member with the carbon fiber sheet in the folded portion so as to be orthogonal to the fiber direction. And a step of tightening and pressing the second extension member against the portion to be reinforced.
【0009】この態様によれば、補強対象部に張設され
る炭素繊維シートにその繊維方向と直交するように当接
した第1の延長部材に沿って、上記該炭素繊維シートを
折り畳み、この折り畳んだ部分の炭素繊維シートにその
繊維方向と直交するように第2の延長部材を当接し、こ
の第2の延長部材を上記補強対象部に対して緊締圧着す
るようにしたので、第2の延長部材が第1の延長部材及
びその周囲の炭素繊維シートを掛止し、所定対象物に張
設される炭素繊維シートがその緊締圧着部分から抜け出
すのを確実に防止することができる。
According to this aspect, the carbon fiber sheet is folded along the first extension member which abuts on the carbon fiber sheet stretched on the portion to be reinforced so as to be orthogonal to the fiber direction. The second extended member is abutted on the folded carbon fiber sheet so as to be orthogonal to the fiber direction, and the second extended member is tightened and crimped against the portion to be reinforced. The extension member hooks the first extension member and the carbon fiber sheet around the first extension member, and it is possible to reliably prevent the carbon fiber sheet stretched over the predetermined object from coming off from the tightened and crimped portion.
【0010】[0010]
【発明の実施の形態】本発明の炭素繊維シートの端部固
定方法における「補強対象部に張設される炭素繊維シー
トにその繊維方向と直交するように当接される第1の延
長部材」及び「折り畳まれた部分の炭素繊維シートにそ
の繊維方向と直交するように当接される第2の延長部
材」の各延長部材としては、棒状体、板状体等の適当な
ものを採用することができる。また、各延長部材には、
一体的に形成されたものである必要はなく、補強対象部
に応じて継ぎ足して延長させる態様のものを含む。
BEST MODE FOR CARRYING OUT THE INVENTION In the method of fixing an end portion of a carbon fiber sheet according to the present invention, "a first extension member abutting on a carbon fiber sheet stretched on a portion to be reinforced so as to be orthogonal to the fiber direction". And as each extension member of the "second extension member abutting on the folded portion of the carbon fiber sheet so as to be orthogonal to the fiber direction", an appropriate one such as a rod-shaped body or a plate-shaped body is adopted. be able to. Also, for each extension member,
It does not need to be formed integrally, and includes a mode of extending and extending in accordance with the portion to be reinforced.
【0011】[0011]
【実施例】以下、本発明の実施例を添付図面に基づいて
説明するが、本発明はこれに限定されるものではない。
ここで、図1及び図2は本発明の炭素繊維シートの端部
固定方法による炭素繊維シートの端部固定状態について
夫々異なる態様を示す概略側断面図である。
Embodiments of the present invention will be described below with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Here, FIG. 1 and FIG. 2 are schematic side sectional views showing different modes of the end fixing state of the carbon fiber sheet according to the end fixing method of the carbon fiber sheet of the present invention.
【0012】図1に示す炭素繊維シートの端部固定状態
は、建築構造物の梁、壁、床等の補強対象部9に張設さ
れる炭素繊維シート10にその繊維方向(ここでは鉛直
方向)と直交するように第1の延長部材として丸棒11
を当接する工程と、この丸棒11を内包するようにこれ
に沿って上記炭素繊維シート10を折り畳む工程と、こ
の折り畳まれた部分の炭素繊維シート10にその繊維方
向と直交するように第2の延長部材として断面がアング
ル状に形成されたアングルプレート12を当接する工程
と、このプレート12を上記補強対象部9に対して緊締
圧着する工程と、によって実施されている。
The end of the carbon fiber sheet shown in FIG. 1 is fixed in the direction of the fiber (in this case, the vertical direction) on the carbon fiber sheet 10 stretched on the reinforcement target portion 9 such as a beam, a wall or a floor of a building structure. ), A round bar 11 as a first extension member so as to be orthogonal to
A) a step of folding the carbon fiber sheet 10 along the round bar 11 so as to include the round bar 11, and a second step in which the carbon fiber sheet 10 of the folded portion is perpendicular to the fiber direction. A step of abutting an angle plate 12 having an angled cross section as an extension member, and a step of tightening and press-fitting the plate 12 against the reinforcement target portion 9.
【0013】また、図2は本発明の炭素繊維シートの端
部固定方法による炭素繊維シートの他の端部固定状態を
示す概略側断面図である。この態様は、建築構造物の
梁、壁、床等の補強対象部9に張設される炭素繊維シー
ト10にその繊維方向と直交するように第1の延長部材
として丸棒11を当接する工程と、この丸棒11を内包
するようにこれに沿って上記炭素繊維シート10を折り
畳む工程と、この折り畳まれた部分の炭素繊維シート1
0にその繊維方向と直交するように第2の延長部材とし
て平板状に形成されたプレート12’を当接する工程
と、このプレート12’を上記補強対象部9に対して緊
締圧着する工程と、によって実施されている。
FIG. 2 is a schematic side sectional view showing another state of fixing the end portion of the carbon fiber sheet according to the method of fixing the end portion of the carbon fiber sheet of the present invention. In this embodiment, a round bar 11 as a first extension member is brought into contact with a carbon fiber sheet 10 stretched on a reinforcement target portion 9 such as a beam, a wall, or a floor of a building structure so as to be orthogonal to the fiber direction. And a step of folding the carbon fiber sheet 10 along the round bar 11 so as to include the round bar 11, and a step of folding the carbon fiber sheet 1 in the folded portion.
0, a step of abutting a plate 12 'formed in a flat plate shape as a second extension member so as to be orthogonal to the fiber direction, and a step of clamping and pressing the plate 12' to the reinforcing target portion 9; Has been implemented.
【0014】上述した何れの態様においても、丸棒11
を内包するようにこれに沿って炭素繊維シート10が折
り畳まれており、補強対象部9に対して緊締圧着された
プレート12,12’が丸棒11及びその周囲の炭素繊
維シートを掛止している。従って、炭素繊維シート10
に対してその繊維方向に沿う下方向への引張力Aが付加
されたとしも、炭素繊維シート10は丸棒11及びプレ
ート12,12’によって拘止され、炭素繊維シート1
0がプレート12,12’による緊締圧着部分から抜け
出すのを確実に防止することができる。
In any of the above embodiments, the round bar 11
The carbon fiber sheet 10 is folded so as to enclose the round bar 11 and the carbon fiber sheet around the round bar 11 is tightly clamped against the reinforcement target portion 9 by the plates 12, 12 '. ing. Therefore, the carbon fiber sheet 10
, The carbon fiber sheet 10 is restrained by the round bar 11 and the plates 12, 12 'even if a downward tensile force A along the fiber direction is applied to the carbon fiber sheet 1.
0 can be reliably prevented from falling out of the tightening and crimping portion by the plates 12, 12 '.
【0015】[0015]
【発明の効果】本発明の炭素繊維シートの端部固定方法
は、補強対象部に張設される炭素繊維シートにその繊維
方向と直交するように当接した延長部材に沿って、上記
該炭素繊維シートを折り畳み、この折り畳んだ部分の炭
素繊維シートにその繊維方向と直交するように他の延長
部材を当接し、該他の延長部材を上記補強対象部に対し
て緊締圧着する態様を採用したことにより、第2の延長
部材が第1の延長部材及びその周囲の炭素繊維シートを
掛止し、所定対象物に張設される炭素繊維シートがその
緊締圧着部分から抜け出すのを確実に防止することがで
きるといった顕著な効果を奏する。
According to the method for fixing the end of a carbon fiber sheet of the present invention, the carbon fiber sheet is stretched along the extension member which abuts on the carbon fiber sheet stretched on the portion to be reinforced so as to be orthogonal to the fiber direction. A mode in which the fiber sheet is folded, another extended member is brought into contact with the carbon fiber sheet in the folded portion so as to be orthogonal to the fiber direction, and the other extended member is tightly crimped to the reinforcing target portion is adopted. Thus, the second extension member hooks the first extension member and the carbon fiber sheet around the first extension member, and reliably prevents the carbon fiber sheet stretched on the predetermined object from coming out of the tightened and crimped portion. It has a remarkable effect that it can be done.
【図面の簡単な説明】[Brief description of the drawings]
【図1】本発明の炭素繊維シートの端部固定方法による
炭素繊維シートの端部固定状態を示す概略側断面図であ
る。
FIG. 1 is a schematic side sectional view showing a state of fixing an end portion of a carbon fiber sheet by a method of fixing an end portion of a carbon fiber sheet of the present invention.
【図2】本発明の炭素繊維シートの端部固定方法による
炭素繊維シートの他の端部固定状態を示す概略側断面図
である。
FIG. 2 is a schematic side sectional view showing another state of fixing the end portion of the carbon fiber sheet according to the end fixing method of the carbon fiber sheet of the present invention.
【図3】(a)〜(c)は従来の炭素繊維シートの端部
固定方法による炭素繊維シートの端部固定状態を示す概
略側断面図である。
FIGS. 3 (a) to 3 (c) are schematic side sectional views showing a state of fixing an end portion of a carbon fiber sheet by a conventional method of fixing an end portion of a carbon fiber sheet.
【図4】(a)〜(c)は従来の炭素繊維シートの端部
固定方法による炭素繊維シートの他の端部固定状態を示
す概略側断面図である。
FIGS. 4A to 4C are schematic side sectional views showing another end fixing state of the carbon fiber sheet according to the conventional end fixing method of the carbon fiber sheet.
【符号の説明】[Explanation of symbols]
9 補強対象部 10 炭素繊維シート 11 丸棒(第1の延長部材) 12,12’ プレート(第2の延長部材) 13 ボルト締め 32,32’ プレート 9 Reinforcement target part 10 Carbon fiber sheet 11 Round bar (first extension member) 12, 12 'plate (second extension member) 13 Bolt tightening 32, 32' plate

Claims (1)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 補強対象部に張設される炭素繊維シート
    の端部を固定する方法であって、補強対象部に張設され
    る炭素繊維シートにその繊維方向と直交するように第1
    の延長部材を当接する工程と、この第1の延長部材を内
    包するようにこれに沿って上記炭素繊維シートを折り畳
    む工程と、この折り畳まれた部分の炭素繊維シートにそ
    の繊維方向と直交するように第2の延長部材を当接する
    工程と、この第2の延長部材を上記補強対象部に対して
    緊締圧着する工程と、を含むことを特徴とする炭素繊維
    シートの端部固定方法。
    1. A method for fixing an end portion of a carbon fiber sheet stretched on a reinforcement target portion, wherein a first direction of the carbon fiber sheet stretched on the reinforcement target portion is perpendicular to a fiber direction of the carbon fiber sheet.
    A step of abutting the first extension member, a step of folding the carbon fiber sheet along the first extension member so as to include the first extension member, and a step of folding the carbon fiber sheet in the folded portion so as to be orthogonal to the fiber direction. A step of abutting a second extension member on said second extension member, and a step of tightening and pressing said second extension member against said portion to be reinforced.
JP9046060A 1997-02-28 1997-02-28 Fixing method of end section of carbon-fiber sheet Pending JPH10238134A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9046060A JPH10238134A (en) 1997-02-28 1997-02-28 Fixing method of end section of carbon-fiber sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9046060A JPH10238134A (en) 1997-02-28 1997-02-28 Fixing method of end section of carbon-fiber sheet

Publications (1)

Publication Number Publication Date
JPH10238134A true JPH10238134A (en) 1998-09-08

Family

ID=12736479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9046060A Pending JPH10238134A (en) 1997-02-28 1997-02-28 Fixing method of end section of carbon-fiber sheet

Country Status (1)

Country Link
JP (1) JPH10238134A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929254A (en) * 2010-09-01 2010-12-29 中南大学 Method for lapping and anchoring fiber sheet around rod to reinforce structural component
CN101929494A (en) * 2010-09-01 2010-12-29 中南大学 Method for self-lock of flexible flaky material by turnstile
CN103321445A (en) * 2013-06-14 2013-09-25 叶香竹 Construction method for polyethylene-fiber-reinforced concrete beam
CN103321446A (en) * 2013-06-21 2013-09-25 叶香竹 Construction method for using prestressed glass fiber cloth to reinforce wood beam
CN111622136A (en) * 2020-06-20 2020-09-04 吴立新 Prestressed carbon fiber flexible material tensioning and anchoring device and construction method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101929254A (en) * 2010-09-01 2010-12-29 中南大学 Method for lapping and anchoring fiber sheet around rod to reinforce structural component
CN101929494A (en) * 2010-09-01 2010-12-29 中南大学 Method for self-lock of flexible flaky material by turnstile
CN103321445A (en) * 2013-06-14 2013-09-25 叶香竹 Construction method for polyethylene-fiber-reinforced concrete beam
CN103321446A (en) * 2013-06-21 2013-09-25 叶香竹 Construction method for using prestressed glass fiber cloth to reinforce wood beam
CN111622136A (en) * 2020-06-20 2020-09-04 吴立新 Prestressed carbon fiber flexible material tensioning and anchoring device and construction method thereof

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