JP3205954B2 - Method and material for reinforcing concrete columnar structure - Google Patents
Method and material for reinforcing concrete columnar structureInfo
- Publication number
- JP3205954B2 JP3205954B2 JP32583995A JP32583995A JP3205954B2 JP 3205954 B2 JP3205954 B2 JP 3205954B2 JP 32583995 A JP32583995 A JP 32583995A JP 32583995 A JP32583995 A JP 32583995A JP 3205954 B2 JP3205954 B2 JP 3205954B2
- Authority
- JP
- Japan
- Prior art keywords
- columnar structure
- concrete
- tape
- reinforcing
- wall
- 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.)
- Expired - Fee Related
Links
Landscapes
- Working Measures On Existing Buildindgs (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Rod-Shaped Construction Members (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、壁が連続して形成
された既存の柱や梁のコンクリート柱状構造体の補強方
法とその補強に適した補強材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for reinforcing an existing column or beam concrete columnar structure having a continuous wall and a reinforcing material suitable for the reinforcing method.
【０００２】[0002]
【従来の技術】従来、図１に示すように、既存のコンク
リート製の柱や梁の柱状構造体ａを補強するため、引張
強度がコンクリートよりも大きい芳香族ポリアミド繊
維、炭素繊維等の化学繊維を紐状或いはテープ状に編織
した補強材ｂを該構造体の周囲に巻き付けて貼着するこ
とが行われている。2. Description of the Related Art Conventionally, as shown in FIG. 1, in order to reinforce existing columnar structures a of concrete columns and beams, chemical fibers such as aromatic polyamide fibers and carbon fibers having a tensile strength higher than that of concrete are used. Is wound around a perimeter of the structure to attach the reinforcing material b which is knitted in a string shape or a tape shape.
【０００３】[0003]
【発明が解決しようとする課題】補強材を巻き付けて補
強できる柱状構造体は、例えば独立した柱や梁のように
その周囲に空間が存在したものに限られる。しかし、柱
や梁には壁が連続して形成されることが多く、このよう
な壁付きの柱状構造体に補強材を周回して貼着固定する
ことが難しいので補強は行われていないが、これにも補
強することが望まれる。また、柱に一体に取り付けられ
た梁の取付部の補強も困難で、これも簡単に補強作業で
きることが好ましい。A columnar structure which can be reinforced by winding a reinforcing material is limited to a columnar structure such as an independent column or beam having a space around it. However, pillars and beams are often formed with a continuous wall, and it is difficult to wrap and fix a reinforcing material around such a columnar structure with walls. It is desirable to reinforce this. Further, it is difficult to reinforce the mounting portion of the beam integrally mounted on the pillar, and it is preferable that the reinforce work can be easily performed.
【０００４】本発明は、壁付きのコンクリート製柱や梁
を補強する方法を提案すること、及びこれらの補強に適
した補強材を提供することを目的とするものである。[0004] An object of the present invention is to propose a method for reinforcing concrete columns and beams with walls, and to provide a reinforcing material suitable for such reinforcement.
【０００５】[0005]
【課題を解決するための手段】本発明では、柱や梁のコ
ンクリート柱状構造体の側面にコンクリート壁を連続し
て形成した壁付き構造体に於いて、該壁の該柱状構造体
に接近した位置に該壁を貫通した貫通孔を形成し、該貫
通孔に、引張強度がコンクリートよりも大きい補強繊維
を編織したテープであって長さ方向の中間部を幅狭く編
織すると共に該中間部をロッド状に樹脂で固めたテープ
状の補強材を挿通し、該中間部を該貫通孔内に位置させ
て貼着固定すると共に該補強材のテープ部を該柱状構造
体に捲回してその周面に貼着固定することにより、上記
の目的を達成するようにした。該補強材は、引張強度が
コンクリートよりも大きい芳香族ポリアミド繊維等の補
強繊維をテープ状に編織し且つその長さ方向の中間部を
テープ幅よりも幅狭く編織してロッド状に樹脂により固
めたものが好ましい。SUMMARY OF THE INVENTION According to the present invention, in a walled structure in which a concrete wall is continuously formed on the side of a concrete columnar structure such as a column or a beam, the concrete structure is closed to the columnar structure of the wall. Forming a through-hole penetrating the wall at a position, a tape in which a reinforcing fiber having a tensile strength greater than that of concrete is knitted and woven in the through-hole, and an intermediate portion in the length direction is narrowly woven and woven ; A tape-shaped reinforcing material fixed with a resin in a rod shape is inserted, the intermediate portion is positioned in the through hole, and the tape is adhered and fixed, and the tape portion of the reinforcing material is wound around the pillar-shaped structure and The above object was achieved by sticking and fixing to the surface. The reinforcing material is formed by weaving a reinforcing fiber such as an aromatic polyamide fiber having a tensile strength higher than that of concrete into a tape shape, and knitting a middle portion in the length direction of the reinforcing fiber so as to be narrower than the tape width, and hardening the resin into a rod shape with a resin. Are preferred.
【０００６】[0006]
【発明の実施の形態】本発明の実施の形態を図２の切断
平面図に基づき説明すると、同図に於いて符号１は４角
形断面の鉄筋コンクリート柱から成るコンクリート柱状
構造体、符号２は該柱状構造体１の側面に連続して形成
されたコンクリート壁を示し、該柱状構造体１が例えば
老朽化してその補強を行う場合、該壁２の該柱状構造体
１に接近した位置に貫通孔３を形成し、そこに図４、図
５に示すようなテープ状の補強材４を挿通して該柱状構
造体１の周囲に捲回させて貼着固定する。該貫通孔３
は、図３のように該柱状構造体１の長さに応じて適当な
間隔で該柱状構造体１に沿って複数箇所に設けられる。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to a cut-away plan view of FIG. 2. In FIG. 2, reference numeral 1 denotes a concrete columnar structure composed of reinforced concrete columns having a square cross section, and reference numeral 2 denotes a concrete columnar structure. FIG. 4 shows a concrete wall continuously formed on the side surface of the columnar structure 1. When the columnar structure 1 is deteriorated, for example, to reinforce it, a through hole is formed in a position of the wall 2 close to the columnar structure 1. 3 is formed, and a tape-like reinforcing material 4 as shown in FIGS. 4 and 5 is inserted therethrough, wound around the columnar structure 1, and fixed. The through hole 3
Are provided at a plurality of locations along the columnar structure 1 at appropriate intervals according to the length of the columnar structure 1 as shown in FIG.
【０００７】該補強材４は、引張強度がコンクリートよ
りも大きい例えば芳香族ポリアミド繊維、炭素繊維、ガ
ラス繊維等の耐蝕性の良い補強繊維をテープ状に編織し
たもので、その長さ方向の中間部４ａをテープ部４ｂよ
りも幅狭く編織すると共に該中間部４ａにエポキシ系樹
脂やポリエステル系、ビニルエステル系、フェノール
系、ポリイミド系等の樹脂を含浸させ硬化させてロッド
状に形成しておく。該中間部４ａを幅狭く形成するに
は、例えば、該中間部４ａの繊維の密度を高めて編織
し、或いは該中間部４ａの厚さをテープ部４ｂよりも厚
く編織することにより可能である。該中間部４ａの幅、
厚さ、長さ、テープ部４ｂの長さと幅は必要に応じて各
種寸法に形成される。The reinforcing member 4 is formed by weaving reinforcing fibers having good corrosion resistance, such as aromatic polyamide fiber, carbon fiber, glass fiber, etc., having a tensile strength higher than that of concrete, into a tape shape. The portion 4a is knitted and woven to be narrower than the tape portion 4b, and the intermediate portion 4a is impregnated with an epoxy resin, a polyester resin, a vinyl ester resin, a phenol resin, a polyimide resin, or the like, and is cured to form a rod. . In order to form the intermediate portion 4a narrow, for example, it is possible to increase the density of the fibers in the intermediate portion 4a and knit or weave the intermediate portion 4a thicker than the tape portion 4b. . The width of the intermediate portion 4a,
The thickness, length, length and width of the tape portion 4b are formed in various dimensions as required.
【０００８】該柱状構造体１を補強する場合、その３面
に亘って図２のように補強テープ８を予め貼着してお
く。そして各補強材４を貫通孔３内へ挿通するに先立
ち、該中間部４ａにエポキシ系等の接着剤を塗布してお
き、一方のテープ部４ｂから該貫通孔３内へ挿入し、該
中間部４ａを該貫通孔３内で貼着固定する。続いて各テ
ープ部４ｂと該柱状構造体１の周面に接着剤を塗布し、
該柱状構造体１の側面へ捲回した状態で該補強テープ８
に各テープ部４ｂを重ねて貼着固定することで該柱状構
造体１が補強される。該柱状構造体１を補強するにはそ
の周面の略全体を補強材４で覆うことが好ましく、その
ため各補強材４は図３のように互いに多少オーバーラッ
プして貼着される。このオーバーラップを可能にするた
め、貫通孔３は補強材４の幅以下の間隔で形成される。
尚、該補強テープ８には補強材４と同種の補強繊維で編
織したものが好ましい。In order to reinforce the columnar structure 1, a reinforcing tape 8 is previously applied to three surfaces thereof as shown in FIG. Before inserting each reinforcing member 4 into the through-hole 3, an adhesive such as an epoxy-based material is applied to the intermediate portion 4a, and is inserted into the through-hole 3 from one tape portion 4b. The part 4 a is adhered and fixed in the through hole 3. Subsequently, an adhesive is applied to each tape portion 4b and the peripheral surface of the columnar structure 1,
In a state where the reinforcing tape 8 is wound around the side surface of the columnar structure 1,
The columnar structure 1 is reinforced by laminating and adhering the respective tape portions 4b to each other. In order to reinforce the columnar structure 1, it is preferable to cover substantially the entire peripheral surface thereof with the reinforcing material 4, so that the reinforcing materials 4 are adhered so as to slightly overlap each other as shown in FIG. In order to enable this overlap, the through holes 3 are formed at intervals equal to or less than the width of the reinforcing member 4.
The reinforcing tape 8 is preferably woven with the same kind of reinforcing fibers as the reinforcing material 4.
【０００９】[0009]
【実施例】図２及び図３に示す柱状構造体１が６０cm角
で長さが３ｍ、また壁２の厚さが１０cmである場合、芳
香族ポリアミド繊維を編織して長さ１８０cm、テープ部
４ｂの幅が６cm、エポキシ樹脂で固めた中間部４ａの幅
が２cmの補強材４を用意し、壁２の該柱状構造体１との
接合部に６cmの間隔を存して長さ３cm、幅１cmの貫通孔
３を５０個形成した。そして該柱状構造体１の３面に補
強テープ８を互いにオーバーラップさせてエポキシ樹脂
で貼着し、このあと中間部４ａにエポキシ樹脂を塗布し
た補強材４を各貫通孔３に挿入してその内部に該中間部
４ａを貼着固定し、更にテープ部４ｂにもエポキシ樹脂
を塗布して該補強テープ８上に接着した。When the columnar structure 1 shown in FIGS. 2 and 3 is 60 cm square and 3 m in length, and the thickness of the wall 2 is 10 cm, an aromatic polyamide fiber is knitted and woven to a length of 180 cm and a tape portion. A reinforcing material 4 having a width 4b of 6 cm and a width of an intermediate portion 4a hardened with epoxy resin of 2 cm is prepared, and a 3 cm length is provided at a joint portion of the wall 2 with the columnar structure 1 at an interval of 6 cm. Fifty through holes 3 having a width of 1 cm were formed. Then, reinforcing tapes 8 are overlapped on three surfaces of the columnar structure 1 and adhered to each other with an epoxy resin, and then a reinforcing material 4 coated with an epoxy resin in an intermediate portion 4a is inserted into each through-hole 3, and The intermediate portion 4a was adhered and fixed inside, and an epoxy resin was further applied to the tape portion 4b to adhere on the reinforcing tape 8.
【００１０】[0010]
【発明の効果】以上のように本発明によるときは、壁付
きのコンクリート柱状構造体の該壁に貫通孔を形成し、
該貫通孔に、引張強度がコンクリートよりも大きい補強
繊維から成るテープであって長さ方向の中間部が幅狭く
ロッド状に樹脂で固められたテープ状の補強材を挿通
し、該中間部を該貫通孔内に貼着固定すると共に該補強
材のテープ部を該柱状構造体に捲回してその周面に貼着
固定したので、壁付きコンクリート柱状構造体の補強を
壁の強度をあまり損なわないで行え、請求項３の構成の
補強材を使用することによりコンクリート柱状構造体の
補強を簡単に行える等の効果がある。As described above, according to the present invention, a through hole is formed in a wall of a concrete columnar structure having a wall.
A tape-like reinforcing material having a tensile strength greater than that of concrete and made of a reinforcing fiber larger than concrete and having a narrow middle portion in the longitudinal direction and narrowed in a rod-like shape with a resin is inserted into the through-hole, and the middle portion is passed through the through-hole. Since the tape portion of the reinforcing member is wound around the columnar structure and is adhered and fixed to the peripheral surface thereof, the reinforcement of the concrete columnar structure with a wall significantly impairs the strength of the wall. The concrete columnar structure can be easily reinforced by using the reinforcing material according to the third aspect.
【図１】従来例の斜視図FIG. 1 is a perspective view of a conventional example.
【図２】請求項１の発明の実施例の切断平面図FIG. 2 is a cut-away plan view of the embodiment according to the first embodiment of the present invention;
【図３】図２の３−３線部分の断面図FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;
【図４】補強材の平面図FIG. 4 is a plan view of a reinforcing member.
【図５】図４の下面図FIG. 5 is a bottom view of FIG. 4;
【符号の説明】 １ コンクリート柱状構造体 ２ コンクリート壁
３、１０ 貫通孔 ４ 補強材 ４ａ 中間部
４ｂ テープ部 ５ コンクリート柱[Description of Signs] 1 Concrete columnar structure 2 Concrete wall
3, 10 through hole 4 reinforcing material 4a middle part
4b tape part 5 concrete pillar
───────────────────────────────────────────────────── フロントページの続き (72)発明者 嶋崎 晴海 東京都千代田区岩本町３丁目10番１号 三井建設株式会社内 (56)参考文献 特開 昭49−58626（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04G 23/02 ──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Harumi Shimazaki 3-1-1, Iwamotocho, Chiyoda-ku, Tokyo Mitsui Construction Co., Ltd. (56) References JP-A-49-58626 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) E04G 23/02
Claims (3)
コンクリート壁を連続して形成した壁付きの柱状構造体
に於いて、該壁の該柱状構造体に接近した位置に該壁を
貫通した貫通孔を形成し、該貫通孔に、引張強度がコン
クリートよりも大きい補強繊維を編織したテープであっ
て長さ方向の中間部を幅狭く編織すると共に該中間部を
ロッド状に樹脂で固めたテープ状の補強材を挿通し、該
中間部を該貫通孔内に位置させて貼着固定すると共に該
補強材のテープ部を該柱状構造体に捲回してその周面に
貼着固定したことを特徴とするコンクリート柱状構造体
の補強方法。In a columnar structure having a wall in which a concrete wall is continuously formed on a side surface of a concrete columnar structure such as a column or a beam, the wall penetrates the wall at a position close to the columnar structure. the through holes are formed in the through hole, pulling the intermediate part <br/> rod with intensity width narrowing knitting weaving the middle portion in the length direction a tape that knitting or weaving the larger reinforcing fibers than concrete A tape-shaped reinforcing material fixed with resin is inserted through the intermediate portion, the intermediate portion is positioned in the through hole, and the tape is adhered and fixed. A method for reinforcing a concrete columnar structure, wherein the reinforcing method is affixed and fixed.
に沿って上記コンクリート壁の複数箇所に形成したこと
を特徴とする請求項１に記載の壁付きコンクリート柱状
構造体の補強方法。2. The method according to claim 1, wherein the through holes are formed at a plurality of locations on the concrete wall along the concrete columnar structure.
族ポリアミド繊維等の補強繊維をテープ状に編織し且つ
その長さ方向の中間部をテープ幅よりも幅狭く編織して
ロッド状に樹脂により固めたことを特徴とする壁付きコ
ンクリート柱状構造体の補強材。3. A reinforcing fiber such as an aromatic polyamide fiber having a tensile strength greater than that of concrete is woven in a tape shape, and an intermediate portion in the length direction is woven and narrowed to a width smaller than the tape width, and is solidified by a resin in a rod shape. A reinforcing material for a concrete columnar structure with walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32583995A JP3205954B2 (en) | 1995-12-14 | 1995-12-14 | Method and material for reinforcing concrete columnar structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32583995A JP3205954B2 (en) | 1995-12-14 | 1995-12-14 | Method and material for reinforcing concrete columnar structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09165925A JPH09165925A (en) | 1997-06-24 |
| JP3205954B2 true JP3205954B2 (en) | 2001-09-04 |
Family
ID=18181197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32583995A Expired - Fee Related JP3205954B2 (en) | 1995-12-14 | 1995-12-14 | Method and material for reinforcing concrete columnar structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3205954B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2585257B (en) * | 2019-04-23 | 2023-02-22 | J Mac Safety Systems Ltd | Ladder guard |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3768349B2 (en) * | 1998-03-30 | 2006-04-19 | 戸田建設株式会社 | Wall column reinforcement method |
| WO2003027416A1 (en) * | 2001-09-25 | 2003-04-03 | Structural Quality Assurance, Inc. | Structure reinforcing construction, reinforcing material, earthquake isolation device, and reinforcing method |
-
1995
- 1995-12-14 JP JP32583995A patent/JP3205954B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2585257B (en) * | 2019-04-23 | 2023-02-22 | J Mac Safety Systems Ltd | Ladder guard |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09165925A (en) | 1997-06-24 |
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