JPH03266607A - Twisted non-magnetic wire body for prestressed concrete - Google Patents
Twisted non-magnetic wire body for prestressed concreteInfo
- Publication number
- JPH03266607A JPH03266607A JP6404090A JP6404090A JPH03266607A JP H03266607 A JPH03266607 A JP H03266607A JP 6404090 A JP6404090 A JP 6404090A JP 6404090 A JP6404090 A JP 6404090A JP H03266607 A JPH03266607 A JP H03266607A
- Authority
- JP
- Japan
- Prior art keywords
- strands
- steel
- magnetic
- paramagnetic
- magnetic steel
- 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.)
- Granted
Links
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 61
- 239000011513 prestressed concrete Substances 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 71
- 239000010959 steel Substances 0.000 claims abstract description 71
- 230000005298 paramagnetic effect Effects 0.000 claims abstract description 28
- 230000035699 permeability Effects 0.000 abstract description 12
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 230000005389 magnetism Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000004567 concrete Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 210000001577 neostriatum Anatomy 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000000946 synaptic effect Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
- D07B1/0693—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core having a strand configuration
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2036—Strands characterised by the use of different wires or filaments
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2015—Strands
- D07B2201/2041—Strands characterised by the materials used
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2015—Construction industries
- D07B2501/2023—Concrete enforcements
Landscapes
- Reinforcement Elements For Buildings (AREA)
- Ropes Or Cables (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はプレストレストコンクリートの製造に使用され
る撚合体とりわけ非磁性特性を備え、磁気浮上式リニア
モータカー軌道部材や核融合装置の構造部材などに好適
な非磁性撚合線条体に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to a twisted composite material used in the production of prestressed concrete, especially having non-magnetic properties, and which is used for magnetic levitation linear motor car track members, nuclear fusion device structural members, etc. The present invention relates to a suitable non-magnetic twisted filament.
プレストレストコンクリート製品は、コンクリート内部
に埋め込んだ高張力線条体の働きで大きな外力に耐えら
れるため、鉄道のまくら木、橋桁、スラブ、矢板などに
汎用されている。Prestressed concrete products are widely used for railway sleepers, bridge girders, slabs, sheet piles, etc. because they can withstand large external forces due to the action of high-tensile striations embedded inside the concrete.
この高張力線条体は、従来では一般に、化学成分が常磁
性鋼からなる高張力鋼からなる＃４ＩｉｉＡまたは撚り
鋼線が用いられていた。しかしこの高張力線条体を磁気
浮上式リニアモータカー軌道部材や核融合装置の構造部
材などのためのプレストレストンクリートに用いた場合
、高張力線条体は強磁場内に置かれることになり、系の
エネルギーロスを避けられない。Conventionally, this high-tensile strength filament is generally a #4IiiiA or twisted steel wire made of high-strength steel whose chemical composition is paramagnetic steel. However, when this high-strength filament is used for prestressed stone cleats for magnetically levitated linear motor car track members or structural members of nuclear fusion devices, the high-tension filament is placed in a strong magnetic field, and the system energy loss cannot be avoided.
この対策としては、Ｎｉ−Ｃｒ系オーステナイトステン
レス鋼や高Ｍｎ系オーステナイト鋼の如く化学的成分が
非磁性鋼の鋼線または素線を複数本撚りあわせたものを
用いることが考えられるが、かかる非磁性鋼線条体の透
磁率は、１０００エルステツドの磁場において１．００
２〜１．００４の値を示し、実際に要求される非磁性特
性に対しては過剰特性となる。As a countermeasure to this problem, it is possible to use steel wires or wires of a chemically non-magnetic steel such as Ni-Cr-based austenitic stainless steel or high-Mn-based austenitic steel. The magnetic permeability of a magnetic steel wire is 1.00 in a magnetic field of 1000 oersteds.
It shows a value of 2 to 1.004, which is an excessive property compared to the actually required non-magnetic property.
しかも、非磁性鋼は磁性鋼に比較して高価であるためプ
レストレストコンクリートの価格が高くなり、さらに、
非磁性鋼は材質的に硬いため撚合しにくく、コンパクト
で安定した断面形状の撚り鋼線としにくいという問題が
あった。また、他の方法として、高張力線条体を炭素繊
維や芳香族ポリアミド繊維と熱硬化性樹脂との複合体で
構成することも考えられるが、製造コストが非常に高い
点、緊張力を与えるために不可欠な端末処理が困難であ
る点などに問題があった。Moreover, non-magnetic steel is more expensive than magnetic steel, which increases the price of prestressed concrete.
Since non-magnetic steel is a hard material, it is difficult to twist together, and it is difficult to form twisted steel wires with a compact and stable cross-sectional shape. Another method is to construct the high-tension filament with a composite of carbon fiber or aromatic polyamide fiber and thermosetting resin, but this would be very expensive to manufacture, and it would not provide tension. The problem was that terminal processing, which is essential for this purpose, was difficult.
本発明は前記のような問題点を解消するために創案され
たもので、その目的とするところは、実際に要求される
非磁性特性水準に合った断面形状のコンパクトなプレス
トレストコンクリート用非磁性撚合線条体を提供するこ
とにある。The present invention was devised to solve the above-mentioned problems, and its purpose is to provide a compact non-magnetic twisted material for prestressed concrete with a cross-sectional shape that meets the actually required level of non-magnetic properties. The goal is to provide synaptic striatum.
上記目的を達成するため本発明は、非磁性鋼からなる素
線と常磁性鋼からなる素線の２種の素線を撚合したもの
である。In order to achieve the above object, the present invention is made by twisting two types of wires: a wire made of non-magnetic steel and a wire made of paramagnetic steel.
以下本発明を添付図面に基づいて説明する。The present invention will be explained below based on the accompanying drawings.
第２図は使用状態を示しており、１は磁気浮上式リニア
モータカー軌道用のスラブであり、圧縮応力をかけたコ
ンクリート２の中に引張り応力をかけた本発明による非
磁性撚合線条体３を埋め込んでなる。前記非磁性撚合線
条体３は鋼ストランドからなっている。Figure 2 shows the state of use, in which 1 is a slab for a magnetically levitated linear motor car track, and the non-magnetic stranded filament according to the present invention is placed in concrete 2 that is placed under compressive stress and is placed under tensile stress. 3 is embedded. The non-magnetic twisted filament 3 consists of a steel strand.
第１図（ａ）（ｂ）はＩＸ７構造の鋼ストランドを例示
している。第１図（ａ）は、化学成分が常磁性鋼からな
る４本の素線３０ａ、３０ｂ、３０ｃ、３０ｄと、化学
成分が非磁性鋼からなる３本の素線３１ ａ ＋ ３
ｌ ｂ ＋ ３１ ｃを組合せたもので、１本の常磁性
鋼素線３０ｄは芯として中心に配され、その周りに３本
の常磁性鋼素線３０ ａ ＋ ３０ ｂ ｔ ３０ｃと
非磁性鋼素線３１ ａ 、 ３ ｌ ｂ 、 ３１．
ｃを交互に配し、所定のピッチで撚りあわせたものであ
る。Figures 1(a) and 1(b) illustrate a steel strand of IX7 construction. FIG. 1(a) shows four wires 30a, 30b, 30c, and 30d whose chemical composition is paramagnetic steel, and three wires 31a+3 whose chemical composition is nonmagnetic steel.
One paramagnetic steel wire 30d is placed in the center as a core, and around it are three paramagnetic steel wires 30a + 30b t 30c and non-magnetic steel. Wires 31 a, 3 l b, 31.
c are arranged alternately and twisted at a predetermined pitch.
第１図（ｂ）は、化学成分が常磁性鋼からなる３本の素
線３０ａ、３０ｂ、３０ｃと、化学成分が非磁性鋼から
なる４本の素線３１ａ、３１ｂ、３１ｃ、３１ｄを組合
せたもので、１本の非磁性鋼素線３１ｄは芯として中心
に配され、その周りに３本の常磁性鋼素線３０ａ、３０
ｂ、３０ｃと非磁性鋼索Ｉｇ ３１ ａ 、 ３ ｌ
ｂ 、 ３１ ｃを交互に配し、所定のピッチで撚りあ
わせたものである。FIG. 1(b) shows a combination of three wires 30a, 30b, 30c whose chemical composition is paramagnetic steel and four wires 31a, 31b, 31c, 31d whose chemical composition is non-magnetic steel. One non-magnetic steel wire 31d is placed in the center as a core, and three paramagnetic steel wires 30a, 30 are placed around it.
b, 30c and non-magnetic steel cable Ig 31a, 3l
B and 31 C are arranged alternately and twisted at a predetermined pitch.
第１図（Ｃ）〜（ｆ）は１Ｘ１９構造の鋼ストランドを
示しており、（Ｃ）は常磁性鋼からなる４本の素線３０
ａ、３０ｂ、３０ｃ、３０ｄと非磁性鋼からなる１５本
の素１！ ３１ ａ〜３１０を組合せたもので、４本の
素線３０ａ、３０ｂ、３０ｃ、３０ｄは第１図（ａ）に
示す配置により右部を構成している。（ｄ）は常磁性鋼
からなる７本の素線３０ａ〜３０ｇで右部を構成し、非
磁性鋼からなる１２本の素Ｍ３１ａ〜３１１で側を構成
したものである。Figures 1 (C) to (f) show a steel strand with a 1X19 structure, and (C) shows four strands 30 of paramagnetic steel.
15 elements 1 consisting of a, 30b, 30c, 30d and non-magnetic steel! 31a to 310, and the four wires 30a, 30b, 30c, and 30d constitute the right part in the arrangement shown in FIG. 1(a). In (d), the right part is made up of seven strands 30a to 30g made of paramagnetic steel, and the side is made up of 12 strands M31a to 311 made of nonmagnetic steel.
（ｅ）は常磁性鋼からなる１０本の素線３０ａ〜３０ｊ
と９本の非磁性鋼からなる素線３１ａ〜３１１を組合せ
ており、常磁性鋼の７本の素線３０ａ〜３０ｇで右部を
構成し、残る３本の素線３０ｈ。(e) shows ten strands 30a to 30j made of paramagnetic steel.
and nine strands 31a to 311 made of non-magnetic steel, the right part is composed of seven strands 30a to 30g of paramagnetic steel, and the remaining three strands 30h.
３０ ｘ ＋ ３０ ｊを側に等間隔で配している。（
ｆ）は１１本の常磁性鋼からなる素線３０ａ〜３０にと
８本の非磁性鋼からなる素線３１ａ〜３１ｈを組合せて
いる。30 x + 30 j are arranged at equal intervals on the sides. (
f) is a combination of 11 strands 30a to 30 made of paramagnetic steel and 8 strands 31a to 31h made of nonmagnetic steel.
なお、常磁性鋼素線と非磁性鋼素線の組合せ本数や配列
は上記例に限定されるものではない。また、素線径も必
ずしも２種の素線が同等あることは必要としない。Note that the combination number and arrangement of paramagnetic steel strands and nonmagnetic steel strands are not limited to the above example. Moreover, it is not necessarily necessary that the two types of strands have the same diameter.
本発明による非磁性撚合線条体３は、公知のこの種プレ
ストレスト用撚合線条体と同様、プレテンション方式、
ボストテンション方式、ケミストレス方式で張力が付与
され、コンクリート２と一体化される。The non-magnetic twisted filament body 3 according to the present invention, like the known twisted filament body for prestressing of this type, uses a pretension method,
Tension is applied using the boss tension method and chemistress method, and it is integrated with concrete 2.
本発明においては、常磁性鋼素線と非磁性鋼素線とを組
合せているため、得られたストランドの透磁率は常磁性
鋼の持つ透磁率と非磁性鋼の持つ透磁率の中間的特性を
示し、したがって適宜非磁性鋼素線の数を増減すること
により、実用上必要とされる水準に即応した必要かつ十
分な非磁性を創成することができる。また、塑性変形し
やすい常磁性鋼素線を含みこれと非磁性鋼素線が撚り合
わさ才しるためストランドの断面形状が不必要に拡開せ
ず、コンパクトでまとまりのよい形状とすることができ
る。In the present invention, since a paramagnetic steel wire and a non-magnetic steel wire are combined, the magnetic permeability of the obtained strand is an intermediate characteristic between the magnetic permeability of paramagnetic steel and the magnetic permeability of non-magnetic steel. Therefore, by appropriately increasing or decreasing the number of nonmagnetic steel wires, it is possible to create necessary and sufficient nonmagnetism that meets the practically required level. In addition, since the strands contain paramagnetic steel wires that are easily deformed plastically and are twisted together with non-magnetic steel wires, the cross-sectional shape of the strands does not expand unnecessarily and can be made into a compact and well-organized shape. can.
次に本発明の実施例を示す。 Next, examples of the present invention will be shown.
下記の化学成分（重量％）からなる常磁性鋼素線と非磁
性鋼素線を使用した。A paramagnetic steel wire and a non-magnetic steel wire having the following chemical components (wt%) were used.
常磁性鉤素ｉ１：ｃ：０．６％、Ｓｉ：０．３％、 Ｍ
ｎ：０．５％非磁性鋼素線：Ｃ：０．５％、 Ｓｉ：０
．３％、Ｍｎ：１ｇ、０％、Ｎｉ：１．１０％、Ｃｒ：
２．０％
常磁性鋼素線の透磁率μ：１５、非磁性鋼素線透磁率μ
：１．００４である。Paramagnetic hook i1:c: 0.6%, Si: 0.3%, M
n: 0.5% Non-magnetic steel wire: C: 0.5%, Si: 0
．． 3%, Mn: 1g, 0%, Ni: 1.10%, Cr:
2.0% Magnetic permeability μ of paramagnetic steel wire: 15, magnetic permeability μ of non-magnetic steel wire
:1.004.
上記２種類の素線の径は必用が４．２２ｍｍで側が４゜
２９ｍｍであり、それらを撚線機で撚り合わせ、ＩＸ７
．１×１９のｐｃストランドを得た。The diameters of the above two types of strands are 4.22 mm for the necessary diameter and 4°29 mm for the side, and they are twisted together using a twisting machine to create IX7
．． 1×19 pc strands were obtained.
得られたＰＣストランドにおける非磁性鋼素線の本数と
透磁率の関係を示すと第３図と第４図のとおりである。The relationship between the number of non-magnetic steel wires and magnetic permeability in the obtained PC strand is shown in FIGS. 3 and 4.
これら第３図と第４図から非磁性鋼素線の本数によりＰ
Ｃストランドの透磁率を制御できることがわかる。From these figures 3 and 4, depending on the number of non-magnetic steel wires, P
It can be seen that the magnetic permeability of the C strand can be controlled.
以上説明した本発明によるときには、非磁性鋼素線と常
磁性鋼素線の２種の素線を撚合したので。According to the present invention described above, two types of wires, non-magnetic steel wires and paramagnetic steel wires, are twisted together.
形状が良好でかつ実際に要求される非透磁性に対して過
不足のない適正水準のプレストレストコンクリート用非
磁性撚合線条体を比較的安価に提供できるというすぐれ
た効果が得られる。An excellent effect can be obtained in that a non-magnetic twisted filament for prestressed concrete can be provided at a relatively low cost and has a good shape and has an appropriate level of non-magnetic permeability that is just over or under the actually required non-magnetic property.
第１図（ａ）〜（ｆ）は本発明によるプレストレストコ
ンクリート用非磁性撚合線条体の例を示す断面図、第２
図は本発明による非磁性撚合線条体を使用したプレスト
レストコンクリート製品の一例を示す断面図、第３図と
第４図は非磁性鋼線の本数とストランドの透磁率の関係
を示すグラフである。
３・・・ストランド、３０ａ、３０ｂ、３０ｃ、３０
ｄ ・・・常磁性鋼素線、 ３１ ａ 、 ３ ｌ ｂ
、 ３１ ｃ −非磁性鋼素線1(a) to 1(f) are cross-sectional views showing examples of non-magnetic twisted wire bodies for prestressed concrete according to the present invention;
The figure is a cross-sectional view showing an example of a prestressed concrete product using the non-magnetic twisted strands according to the present invention, and Figures 3 and 4 are graphs showing the relationship between the number of non-magnetic steel wires and the magnetic permeability of the strands. be. 3... Strand, 30a, 30b, 30c, 30
d...paramagnetic steel wire, 31 a, 3 l b
, 31c - non-magnetic steel wire
Claims (1)
とを特徴とするプレストレストコンクリート用非磁性撚
合線条体。A non-magnetic twisted wire body for prestressed concrete characterized by twisting two types of wires: a non-magnetic steel wire and a paramagnetic steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2064040A JP2949592B2 (en) | 1990-03-16 | 1990-03-16 | Non-magnetic stranded wire for prestressed concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2064040A JP2949592B2 (en) | 1990-03-16 | 1990-03-16 | Non-magnetic stranded wire for prestressed concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03266607A true JPH03266607A (en) | 1991-11-27 |
| JP2949592B2 JP2949592B2 (en) | 1999-09-13 |
Family
ID=13246607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2064040A Expired - Fee Related JP2949592B2 (en) | 1990-03-16 | 1990-03-16 | Non-magnetic stranded wire for prestressed concrete |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2949592B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001240451A (en) * | 2000-02-29 | 2001-09-04 | Taiheiyo Cement Corp | High strength concrete member for high speed traffic system construction |
| CN109332546A (en) * | 2018-02-18 | 2019-02-15 | 兰州斯凯特路桥预应力技术开发有限公司 | A kind of novel steel strand wires production method |
| EP3647486A4 (en) * | 2017-06-30 | 2021-02-17 | Sumitomo Electric Industries, Ltd. | Stranded wire |
| CN116536818A (en) * | 2023-05-23 | 2023-08-04 | 江苏兴达钢帘线股份有限公司 | Production method of layered structure steel cord |
-
1990
- 1990-03-16 JP JP2064040A patent/JP2949592B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001240451A (en) * | 2000-02-29 | 2001-09-04 | Taiheiyo Cement Corp | High strength concrete member for high speed traffic system construction |
| JP4519245B2 (en) * | 2000-02-29 | 2010-08-04 | 太平洋セメント株式会社 | High-strength concrete members for high-speed traffic system structures |
| EP3647486A4 (en) * | 2017-06-30 | 2021-02-17 | Sumitomo Electric Industries, Ltd. | Stranded wire |
| CN109332546A (en) * | 2018-02-18 | 2019-02-15 | 兰州斯凯特路桥预应力技术开发有限公司 | A kind of novel steel strand wires production method |
| CN116536818A (en) * | 2023-05-23 | 2023-08-04 | 江苏兴达钢帘线股份有限公司 | Production method of layered structure steel cord |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2949592B2 (en) | 1999-09-13 |
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