JPH0668198B2 - Structural material - Google Patents
Structural materialInfo
- Publication number
- JPH0668198B2 JPH0668198B2 JP61147077A JP14707786A JPH0668198B2 JP H0668198 B2 JPH0668198 B2 JP H0668198B2 JP 61147077 A JP61147077 A JP 61147077A JP 14707786 A JP14707786 A JP 14707786A JP H0668198 B2 JPH0668198 B2 JP H0668198B2
- Authority
- JP
- Japan
- Prior art keywords
- rod
- structural material
- binder
- core material
- shaped body
- 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 - Lifetime
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
- Reinforced Plastic Materials (AREA)
- Laminated Bodies (AREA)
- Nonwoven Fabrics (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、主として引張り強度の低いコンクリート材料
から成る構造物内に埋設して該構造物の引張り強度を強
化するために用いる補強材であって、鉄筋やPC鋼線の代
用等に使用される構造用材料に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is a reinforcing material which is embedded in a structure mainly made of a concrete material having a low tensile strength to enhance the tensile strength of the structure. The present invention relates to a structural material used as a substitute for a reinforcing bar or a PC steel wire.
（従来の技術） 従来、コンクリート構造物の補強に鉄筋が使用されてい
るが、鉄筋に錆が生じたりして耐久性に問題があり、ま
た構造物が重量化するという不都合を有していた。(Prior Art) Conventionally, reinforcing bars have been used to reinforce concrete structures, but there is a problem in that the reinforcing bars are rusted and durability is poor, and the structure becomes heavy. .
かかる不都合を解消するものとして、第５図示の如く、
コンクリートよりも引張り強度の大きな化学繊維材料で
形成される複数本の細線ａを組紐状に編成し、各細線ａ
を結合剤ｃで結着して棒状体ｂとした構造用材料が本出
願人により提案されている（特開昭61−290150号公報参
照）。In order to eliminate such inconvenience, as shown in FIG.
A plurality of fine wires a formed of a chemical fiber material having a higher tensile strength than concrete is knitted into a braided shape, and each fine wire a
A structural material has been proposed by the applicant of the present invention by binding the above with a binder c to form a rod-like body b (see JP-A-61-290150).
（発明が解決しようとする問題点） 前記提案の構造用材料において、剛性並びに靱性を向上
させることが望まれていた。(Problems to be Solved by the Invention) In the proposed structural material, it has been desired to improve rigidity and toughness.
本発明は、こうした要望を満足する剛性並びに靱性に優
れた前記提案のタイプの構造用材料を提供することを目
的とするものである。It is an object of the present invention to provide a structural material of the type proposed above, which is excellent in rigidity and toughness, which satisfies these needs.
（問題点を解決するための手段） 本発明では、コンクリートよりも引張り強度の大きな化
学繊維の細線の複数本を組紐状に編成し且つ各細線を互
いに結合剤で結着した棒状体の構造用材料において、該
棒状体の長手方向に沿って鉄製芯材を埋設し、該棒状体
と該芯材を結合剤で結着することにより、上記の目的を
達成するようにした。(Means for Solving the Problems) In the present invention, for the structure of a rod-shaped body in which a plurality of fine wires of a chemical fiber having a tensile strength larger than that of concrete are knitted in a braided shape and each fine wire is bound to each other with a binder. In the material, an iron core material was embedded along the longitudinal direction of the rod-shaped body, and the rod-shaped body and the core material were bonded with a binder to achieve the above object.
（作用） 該棒状体の長手方向に鋼製芯材が埋設されているので、
該細線を結合剤で結着しただけの棒状体よりも鉄製芯材
により剛性及び靱性が増大し、また鉄製芯材のみの場合
よりも軽量の割に強度が増大する。しかも、該鉄製芯材
は化学繊維の棒状体で被覆されているので錆が生じるこ
ともない。(Operation) Since the steel core material is embedded in the longitudinal direction of the rod-shaped body,
The iron core material increases rigidity and toughness as compared with the rod-shaped body in which the thin wires are simply bound with a binder, and the strength is increased for a light weight compared to the case where only the iron core material is used. Moreover, since the iron core material is covered with the rod-shaped body of chemical fiber, rust does not occur.
（実施例） 以下、添付図面に従って本発明の実施例に付き説明す
る。(Example) Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
図示のものは、本発明の構造用材料（１）をコンクリー
ト（２）の補強材として用いた例を示す。The figure shows an example in which the structural material (1) of the present invention is used as a reinforcing material for concrete (2).
第１図及び第２図は、予め立設された４本の主筋（３）
…にそれらを相互に接続する形で剪断補強筋（４）を捲
回し、その周囲にコンクリート（２）を打設してコンク
リート構造物（５）として構成したものを示し、この主
筋（３）…及び剪断補強筋（４）として本発明の構造用
材料（１）を用い、該構造物（５）の引張り力を支持す
るようにした。1 and 2 show four main bars (3) that have been installed upright.
... shows a structure in which a shear reinforcing bar (4) is wound so as to connect them to each other, and concrete (2) is cast around it to form a concrete structure (5). This main bar (3) ... and the structural material (1) of the present invention was used as the shear reinforcing bar (4) to support the tensile force of the structure (5).
該構造用材料（１）は、第３図示の如く、コンクリート
（２）よりも引張り強度の大きな材料で形成される化学
繊維の細線（６）として芳香族ポリアミド繊維のモノフ
ィラメントを用い、これを８本の集合糸（７）から成る
丸打紐状に編成された棒状体（８）に形成し、結合剤
（９）として例えばエポキシ系結合剤を用い、該各細線
（６）を互いに結着してあるが、更に、本発明の特徴と
するところに従って、該棒状体（８）の長手方向に沿っ
て鉄製芯材（10）として鉄筋を埋設し、該棒状体（８）
と該芯材（10）を前記と同様の結合剤（９）で結着し
た。As shown in FIG. 3, the structural material (1) uses a monofilament of aromatic polyamide fiber as a fine wire (6) of a chemical fiber formed of a material having a higher tensile strength than concrete (2). It is formed into a rod-shaped body (8) knitted in the shape of a round string composed of aggregated yarns (7) of a book, and, for example, an epoxy binder is used as the binder (9), and the thin wires (6) are bound to each other. Further, according to the feature of the present invention, a rebar is embedded as an iron core material (10) along the longitudinal direction of the rod-shaped body (8) to obtain the rod-shaped body (8).
The core material (10) was bound with the same binder (9) as described above.
該細線（６）を構成する芳香族ポリアミド繊維として
は、直線配位性芳香族ポリアミド、芳香族ポリエーテル
アミド、芳香族ポリサルファイドアミド、芳香族ポリス
ルフォンアミド、芳香族ポリメチレンアミド、芳香族ポ
リケトンアミド、芳香族ポリアミンアミド及びこれらの
共重合体から成る繊維等が含まれる。また、該細線
（６）は前記芳香族ポリアミド繊維に限ることなく、炭
素繊維、ガラス繊維、セラミック繊維等の無機繊維、ポ
リエステル繊維、高強度ポリオレフィン繊維、強力ポリ
ビニルアルコール繊維等の有機繊維であって、コンクリ
ートの引張り強度よりも大きい化学繊維を単独で或いは
組み合わせたりして用いることができる。また、該細線
（６）を長さ方向に異型断面を不規則に有するように構
成すれば、該各細線（６）間の摩擦抵抗が大きくなって
該各細線（６）に加わる応力が構造用材料（１）に伝わ
り易くなると共に、該構造用材料（１）とコンクリート
（２）の密着性が向上するので好ましい。Examples of the aromatic polyamide fiber constituting the thin wire (6) include linear coordination aromatic polyamide, aromatic polyether amide, aromatic polysulfide amide, aromatic polysulfonamide, aromatic polymethylene amide, aromatic polyketone amide. , Fibers comprising aromatic polyamine amides and copolymers thereof, and the like. Further, the fine wire (6) is not limited to the aromatic polyamide fiber, but may be an inorganic fiber such as carbon fiber, glass fiber or ceramic fiber, or an organic fiber such as polyester fiber, high strength polyolefin fiber or strong polyvinyl alcohol fiber. The chemical fibers having a tensile strength higher than that of concrete can be used alone or in combination. Further, when the fine wires (6) are formed to have irregular cross sections in the lengthwise direction, the frictional resistance between the fine wires (6) becomes large, and the stress applied to the fine wires (6) is increased. This is preferable because it is easily transmitted to the structural material (1) and the adhesion between the structural material (1) and the concrete (2) is improved.
該細線（６）の組紐状への編成は、前記丸打紐状の他、
角打紐状、平打紐状等、種々の組紐状に編成できる。ま
た、これらを異形断面織として構造用材料（１）とコン
クリート（２）の密着性を向上させることもできる。一
般的なコンクリートの引張り強度は約20kg／cm2であ
り、芳香族ポリアミド繊維の引張り強度は20000kg／cm2
である。Knitting of the thin wire (6) into a braided shape is not limited to the round striking string shape,
It can be knitted into various braided shapes such as a square braid and a flat braid. In addition, it is possible to improve the adhesion between the structural material (1) and the concrete (2) by using these as a modified cross-section weave. The tensile strength of general concrete is about 20 kg / cm 2 , and the tensile strength of aromatic polyamide fibers is 20000 kg / cm 2.
Is.
前記結合剤（９）としては、エポキシ系、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
の常温或いは熱硬化性樹脂、アルカリ金属ケイ酸塩系、
コロイダルシリカ系、リン酸塩系、セメント系等の常温
或いは加熱硬化型有機・無機複合材料等を用いることが
できる。Examples of the binder (9) include epoxy-based, polyester-based, vinyl ester-based, phenol-based, and polyimide-based room temperature or thermosetting resins, alkali metal silicate-based binders,
A room temperature or heat-curable organic / inorganic composite material such as colloidal silica-based, phosphate-based, or cement-based can be used.
尚、細線（６）同士を結着する結合剤（９）と、棒状体
（８）と鉄製芯材（10）とを結着する結合剤（９）は、
一般には含浸処理によって同一のものを用いるが、結着
特性を考慮して、夫々異なる種類のものを用いてもよ
い。The binder (9) for binding the thin wires (6) together and the binder (9) for binding the rod-shaped body (8) and the iron core material (10) are
Generally, the same type is used by the impregnation treatment, but different types may be used in consideration of the binding property.
前記鉄製芯材（10）としては、鉄筋に限らず、PC鋼芯材
や高張力鋼芯材等が用いられ、その材質は高剛性高靱性
を備えた鉄材であればよい。該芯材（10）は１本に限ら
ず、複数本埋設するようにしてもよく、また該芯材（1
0）を異型とすれば、棒状体（８）との密着性が向上す
る。The iron core material (10) is not limited to a reinforcing bar, but a PC steel core material, a high-tensile steel core material, or the like is used, and the material may be an iron material having high rigidity and high toughness. The core material (10) is not limited to one, and a plurality of core materials (10) may be embedded.
If 0) is atypical, the adhesion with the rod-shaped body (8) is improved.
他の実施例として、第４図示の如く、前記実施例の構造
用材料（１）の細線（６）並びに鉄製芯材（10）を、そ
れらの軸方向にプレストレスを与えた状態で夫々結着す
るようにしてもよい。尚、前記実施例と同一部材は同一
符号を付してその説明は省略する。As another embodiment, as shown in FIG. 4, the thin wire (6) and the iron core material (10) of the structural material (1) of the above embodiment are respectively connected in a state where they are prestressed in the axial direction. You may wear it. The same members as those in the above-mentioned embodiment are designated by the same reference numerals and the description thereof will be omitted.
尚、図示しないが、前記各実施例の構造用材料（１）の
棒状体（８）の表面に粒径100〜2mm程度の二酸化ケイ
素、酸化アルミニウム、炭化ケイ素、タングステンカー
バイト、炭化ホウ素、黄玉等の無機粉粒体を付着させ、
コンクリート（２）との密着性を向上させるようにして
もよい。Although not shown, on the surface of the rod-shaped body (8) of the structural material (1) of each of the above-mentioned examples, silicon dioxide, aluminum oxide, silicon carbide, tungsten carbide, boron carbide, yellow balls having a particle size of about 100 to 2 mm are formed. Inorganic powder particles are attached,
You may make it improve the adhesiveness with the concrete (2).
本発明の具体的実施例は次の通りである。Specific examples of the present invention are as follows.
鉄製芯材（10）として直径13mmのSBPR80の丸鋼を用い、
これらの周囲に1420デニールの芳香族ポリアミド繊維
（ケブラー49）の複数本から成る細線（６）の36本を組
紐状に編成して鉄製芯材（10）が長手方向に埋設された
棒状体（８）を作製した。尚、この36本の細線（６）で
組紐状に編成すると、直径9mmの組紐が編成できる。こ
の棒状体（８）をエポキシ系樹脂の結合剤（９）の溶液
に浸漬し、これを硬化させて構造用材料（１）とした。
この構造用材料（１）の強度を測定したところ、第６図
の曲線Ａのようになった。一方、この細線（６）の36本
で直径9mmの組紐を編成し、これを上記結合剤（９）を
含浸させて硬化させてサンプルの構造用材料を作製し、
その強度を測定したところ、第６図の曲線Ｂのようにな
った。また、直径13mmの該丸鋼の芯材（10）の強度を測
定したところ、第６図の曲線Ｃのようになった。SBPR80 round steel with a diameter of 13 mm is used as the iron core material (10),
Around the above, 36 fine wires (6) consisting of a plurality of 1420 denier aromatic polyamide fibers (Kevlar 49) were knitted in a braided shape and an iron core (10) was embedded in the longitudinal direction ( 8) was produced. When the braid is knitted with these 36 thin wires (6), a braid with a diameter of 9 mm can be knitted. This rod-shaped body (8) was dipped in a solution of a binder (9) of an epoxy resin and cured to obtain a structural material (1).
When the strength of this structural material (1) was measured, a curve A in FIG. 6 was obtained. On the other hand, a braid with a diameter of 9 mm is knitted with 36 thin wires (6), which is impregnated with the binder (9) and cured to produce a sample structural material.
When the intensity was measured, it became like the curve B in FIG. Further, when the strength of the core material (10) of the round steel having a diameter of 13 mm was measured, a curve C in FIG. 6 was obtained.
これより強度は、丸鋼の芯材（10）のみの場合や上記サ
ンプルの構造用材料よりも大きくなり、靱性も比較的大
きいことが分かる。また、剛性は、上記サンプルは0.6
×106kg／cm2であったが、該芯材（10）が埋設されたこ
とにより1.5×106kg／cm2となった。From this, it can be seen that the strength is higher than that of the round steel core material (10) alone or the structural material of the above sample, and the toughness is also relatively high. The rigidity is 0.6 in the above sample.
It was × 10 6 kg / cm 2 , but it was 1.5 × 10 6 kg / cm 2 because the core material (10) was embedded.
（発明の効果） このように本発明によれば、コンクリートよりも引張り
強度の大きな化学繊維の細線の複数本を組紐状に編成し
且つ各細線を互いに結合剤で結着した棒状体の構造用材
料において、該棒状体の長手方向に沿って鉄製芯材を埋
設し、該棒状体と該芯材を結合剤で結着したので、該構
造用材料の剛性並びに靱性が向上し、また、同じ強度を
出すには、鉄筋だけのものより軽量なものとし得、しか
も芯材のまわりが該棒状体で被覆されるので、該芯材に
錆が生じる虞もない等の効果がある。(Effect of the invention) As described above, according to the present invention, for a structure of a rod-shaped body in which a plurality of fine wires of a chemical fiber having a higher tensile strength than concrete is knitted in a braided shape and each fine wire is bound to each other with a binder. In the material, an iron core material is embedded along the longitudinal direction of the rod-shaped body, and the rod-shaped body and the core material are bonded with a binder, so that the rigidity and toughness of the structural material are improved, and the same. In order to obtain strength, it can be made lighter than that made of only reinforcing steel, and since the core material is covered with the rod-shaped body, there is an effect that there is no risk of rusting on the core material.
第１図は本発明の構造用材料を構造物のコンクリートに
使用した例の平面線図、第２図はその正面線図、第３図
は本発明の構造用材料の１実施例の一部截断拡大正面
図、第４図は他の実施例の一部截断拡大正面図、第５図
は先に提案した構造用材料の拡大正面図、第６図は本発
明の構造用材料の強度を示す線図である。 １……構造用材料、６……細線 ８……棒状体、９……結合剤 10……鉄製芯材FIG. 1 is a plan view of an example in which the structural material of the present invention is used for concrete of a structure, FIG. 2 is a front view thereof, and FIG. 3 is a part of one embodiment of the structural material of the present invention. An enlarged front view of cutting, FIG. 4 is an enlarged front view of a part of another embodiment, FIG. 5 is an enlarged front view of the previously proposed structural material, and FIG. 6 is the strength of the structural material of the present invention. It is a diagram showing. 1 ... Structural material, 6 ... Thin wire 8 ... Bar, 9 ... Binder 10 ... Iron core
Claims (1)
学繊維の細線の複数本を組紐状に編成し且つ各細線を互
いに結合剤で結着した棒状体の構造用材料において、該
棒状体の長手方向に沿って鉄製芯材を埋設し、該棒状体
と該芯材を結合剤で結着したことを特徴とする構造用材
料。1. A rod-shaped structural material in which a plurality of fine wires of a chemical fiber having a higher tensile strength than concrete is knitted in a braided shape and each fine wire is bound to each other by a binder, in the longitudinal direction of the rod. A structural material comprising an iron core material embedded along the core, and the rod-shaped body and the core material are bound by a binder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61147077A JPH0668198B2 (en) | 1986-06-25 | 1986-06-25 | Structural material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61147077A JPH0668198B2 (en) | 1986-06-25 | 1986-06-25 | Structural material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS634160A JPS634160A (en) | 1988-01-09 |
| JPH0668198B2 true JPH0668198B2 (en) | 1994-08-31 |
Family
ID=15421949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61147077A Expired - Lifetime JPH0668198B2 (en) | 1986-06-25 | 1986-06-25 | Structural material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0668198B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2688606B2 (en) * | 1988-12-02 | 1997-12-10 | 株式会社高分子加工研究所 | Three-dimensional structure with reinforced mesh tubular body |
| US5208077A (en) * | 1990-11-09 | 1993-05-04 | Florida Wire And Cable Company | Method for a composite material comprising coated and filled metal strand for use in prestressed concrete, stay cables for cable-stayed bridges and other uses |
| JP2714735B2 (en) * | 1992-05-20 | 1998-02-16 | 財団法人鉄道総合技術研究所 | Large diameter rod made of organic synthetic fiber |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60246946A (en) * | 1984-05-22 | 1985-12-06 | 旭化成株式会社 | Reinforcing material for structure |
| JPS61225449A (en) * | 1985-03-28 | 1986-10-07 | 五洋建設株式会社 | Tension material for prestressed concrete |
-
1986
- 1986-06-25 JP JP61147077A patent/JPH0668198B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS634160A (en) | 1988-01-09 |
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