JPH0533425A - Fixing end part of pc steel stranded wire - Google Patents
Fixing end part of pc steel stranded wireInfo
- Publication number
- JPH0533425A JPH0533425A JP21619791A JP21619791A JPH0533425A JP H0533425 A JPH0533425 A JP H0533425A JP 21619791 A JP21619791 A JP 21619791A JP 21619791 A JP21619791 A JP 21619791A JP H0533425 A JPH0533425 A JP H0533425A
- Authority
- JP
- Japan
- Prior art keywords
- steel
- sleeve
- wire
- stranded wire
- fixing end
- 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
Landscapes
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プレストレストコンク
リート部材とか、斜張橋用吊材、アウターケーブル等に
使用される、ＰＣ鋼より線の定着部の耐疲労性、さらに
は耐食性を向上させた定着端部に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has improved the fatigue resistance and corrosion resistance of the fixing portion of PC steel stranded wire used for prestressed concrete members, suspension materials for cable-stayed bridges, outer cables and the like. It relates to the fixing end.
【０００２】[0002]
【従来の技術】ＰＣ鋼より線を定着する方法としては、
大きく分けて次の３通りのタイプの定着具による方法が
ある。
（１）楔のＰＣ鋼より線を把むところが歯形になってい
るウェッジタイプ
（２）ＰＣ鋼より線を摩擦抵抗で把むコーンタイプ
（３）ＰＣ鋼より線を圧着加工して把むスリーブタイプ
このうち（３）のスリーブを用いてＰＣ鋼より線に被ぶ
せて圧着加工する方法は、従来次のように実施してい
た。使用するＰＣ鋼より線の直径より大きい孔をあけた
鋼製スリーブおよびスリーブとＰＣ鋼より線の間に介在
させる金属類をＰＣ鋼より線の間に挿入し、これをスリ
ーブの外径より小さい孔径をもつダイスで押し出し加工
する。スリーブとＰＣ鋼より線の間に介在させる金属類
としては、断面が角状になったもので、コイル状になっ
たものとか、金網で円筒状に形成したもの、さらに内側
にネジ切り状の歯をもった筒状のものがあるが、これら
はいずれもスリーブを圧縮し、ＰＣ鋼より線に対し、圧
着加工を施した時、ＰＣ鋼より線とスリーブの内面の抵
抗を大きくして、ＰＣ鋼より線の引張り力方向の抵抗を
大きくして所定の荷重に耐えるようにしたものである。
図３は上記の例を示し、１はＰＣ鋼より線、２はスリー
ブ、３，3'は金属類、例えばコイル状ばねと金網を筒状
に形成したものである。もちろん、これら金属類の介在
物がなく、スリーブのみでも所定の荷重に耐えるように
したものがあるが、この場合スリーブ長が長いものとな
る。2. Description of the Related Art As a method of fixing a PC steel strand,
There are roughly three types of methods using the following fixing devices. (1) Wedge type in which the part of the PC steel wire of the wedge has a tooth shape (2) Cone type that grips the PC steel wire with friction resistance (3) Sleeve that grips the PC steel wire by crimping Type Among these, the method of covering the PC steel wire with the sleeve of (3) and crimping the wire has been conventionally performed as follows. Insert a steel sleeve with a hole larger than the diameter of the PC steel wire used and a metal to be interposed between the sleeve and the PC steel wire between the PC steel wire and make it smaller than the outer diameter of the sleeve. Extrude with a die having a hole diameter. Metals to be interposed between the sleeve and the PC steel stranded wire have a square cross section, a coiled shape, a metal mesh formed into a cylindrical shape, and a threaded shape inside. There is a tubular shape with teeth, but when compressing the sleeve and crimping the PC steel wire, the resistance of the PC steel wire and the inner surface of the sleeve is increased, The resistance of the PC steel wire in the direction of the tensile force is increased to withstand a predetermined load.
FIG. 3 shows the above example, 1 is a stranded wire of PC steel, 2 is a sleeve, and 3 and 3'are metal, for example, a coil spring and a wire mesh are formed in a tubular shape. Of course, there is one in which there is no inclusion of these metals and only the sleeve can withstand a predetermined load, but in this case the sleeve length is long.
【０００３】[0003]
【発明が解決しようとする課題】ところが、これらの圧
着加工したスリーブタイプのものは、斜張橋用吊材等の
くり返し応力のかかるところに用いられた場合、疲労抵
抗を発揮できない。何故ならば、この種タイプの定着具
は、ＰＣ鋼より線１の軸方向のスリーブ２との摩擦抵抗
で、引張方向の荷重に耐えるようになっているため、こ
の定着具で定着されたＰＣ鋼より線１に引張り力が加わ
ると、図４に示すように圧着グリップのプレート４の側
から抜け出そうとする力が働くような機構になってい
る。そのため、ＰＣ鋼より線１にくり返し応力がかかっ
た時、圧着グリップのプレート４側出口付近でＰＣ鋼よ
り線の上、下運動が発生する。そして、この上、下運動
時にスリーブ２とＰＣ鋼より線１の間に介在している金
属類と常時擦れる状態になる。また、圧着加工前、金属
類を挿入するが、この金属類がスリーブ２より出てこな
いようにするため、図５に示すようにスリーブ２の先端
孔をせばめてストッパー５を形成しているが、ＰＣ鋼よ
り線１が上、下運動する時、このストッパー５とも擦れ
ることがある。この上、下運動により、ＰＣ鋼より線１
にフレッチング現象が発生し、疲労抵抗を弱めることに
なる。このような定着具で疲労抵抗を高める方法とし
て、図６に示すように引張り力が伝達していく側（プレ
ートに近い側）のスリーブ２の先端をテーパー６を備え
る形状となし、このテーパー６と同程度の角度をもつ孔
の中に定着するようにして、ＰＣ鋼より線に引張り力が
加わり、くり返し応力が加わることによってＰＣ鋼より
線１に締めつけ力が働き、スリーブ先端部内でのＰＣの
上、下運動をできるだけ少なくする方法がある。しか
し、この方法では、スリーブの加工が複雑で非常に高い
費用を要するという欠点がある。一方、ＰＣ鋼より線を
複数本より合せたケーブルにおいては、スリーブとの間
に金属類を直接介在させることなく、圧着加工している
ため、スリーブ長が長くなっている。そして、この定着
方法では、金属類が介在している場合より、さらにＰＣ
鋼より線のくり返し応力が加わった時の上、下運動は大
きくなり、疲労抵抗が小さい。そのために図７に示すよ
うに、スリーブ先端内側に切欠き部７を設けて樹脂８を
注入する方法がある。（特公昭61−3915号参照）しかし
ながら、この方法では樹脂と接する面積が小さく、ケー
ブル1'の引張り力に耐えるだけの接着力がない。そのた
め、くり返し応力がかかった時、最初に上、下運動がか
かった部分でのスリーブ２との接触は少ないが、くり返
し数が多くなり、くり返し応力が大きくなると、樹脂の
接着が切れ、スリーブ２とケーブル1'が直接接触してい
る部分においても、上、下運動が起りうる。そのため、
その部分にフレッチングが発生し、疲労強度の向上がそ
れほど望めない。このように、従来のスリーブを圧着し
て定着具とする方法には、疲労抵抗を上げるという点で
問題があった。However, these crimp-processed sleeve-type ones cannot exhibit fatigue resistance when they are used in places such as suspension members for cable-stayed bridges where repeated stress is applied. Because this type of fixing device is designed to withstand the load in the tensile direction due to the frictional resistance between the PC steel strand 1 and the sleeve 2 in the axial direction, the PC fixed with this fixing device. When a tensile force is applied to the steel stranded wire 1, as shown in FIG. 4, the mechanism is such that a force to pull out from the plate 4 side of the crimp grip acts. Therefore, when repeated stress is applied to the PC steel wire 1, upward and downward motions of the PC steel wire occur near the plate 4 side outlet of the crimp grip. Then, during the upward and downward movements, the metal intervening between the sleeve 2 and the PC steel strand 1 is constantly rubbed. Further, before the crimping process, metals are inserted, but in order to prevent the metals from coming out of the sleeve 2, the stopper 5 is formed by fitting the tip hole of the sleeve 2 as shown in FIG. When the wire 1 moves up and down from the PC steel, the stopper 5 may also rub against it. By this upper and lower movement, PC steel strand 1
The fretting phenomenon occurs on the surface, weakening the fatigue resistance. As a method of increasing the fatigue resistance with such a fixing tool, the tip of the sleeve 2 on the side where the tensile force is transmitted (the side close to the plate) is formed with a taper 6 as shown in FIG. As a result of the tensile force being applied to the PC steel wire and the repeated stress being applied so that the wire is fixed in the hole having the same angle as the PC steel wire 1, the PC steel wire 1 has a tightening force, and PC in the sleeve tip part There is a method to minimize the upper and lower exercises. However, this method has the drawback that the processing of the sleeve is complicated and requires a very high cost. On the other hand, in a cable formed by twisting a plurality of PC steel strands, the sleeve length is long because the cable is crimped without directly interposing the metal with the sleeve. In addition, in this fixing method, the
When the repeated stress of the stranded steel wire is applied, the upward and downward movements become large and the fatigue resistance is small. Therefore, as shown in FIG. 7, there is a method in which a notch 7 is provided on the inner side of the front end of the sleeve to inject the resin 8. (See Japanese Examined Patent Publication No. 61-3915) However, in this method, the area in contact with the resin is small, and the adhesive force is not sufficient to withstand the tensile force of the cable 1 '. Therefore, when the repeated stress is applied, the contact with the sleeve 2 is small at the portion where the upper and lower motions are first applied, but when the repeated number becomes large and the repeated stress becomes large, the resin adhesion is broken and the sleeve 2 Even in a portion where the cable 1'and the cable 1'are in direct contact with each other, upward and downward movements can occur. for that reason,
Fretting occurs in that portion, and improvement in fatigue strength cannot be expected so much. As described above, the conventional method of pressing the sleeve to form the fixing device has a problem in that the fatigue resistance is increased.
【０００４】[0004]
【課題を解決するための手段】本発明は上記のような問
題を解決したものであって、次のような観点に立って、
改善の手段を講じている。
（１）ＰＣ鋼より線とスリーブが、くり返し応力による
上、下運動の時に直接接しない。
（２）ＰＣ鋼より線の部分への酸素の供給をできるだけ
少なくする。
（３）ＰＣ鋼より線の引張り力に対しては、十分保持力
がある。
これらの要件を満足する手段として、
（１）少なくともＰＣ鋼より線の圧着力加工をする部分
の表面に樹脂を粉体塗装する。もちろん、この粉体塗装
はＰＣ鋼より線の表面を処理して、樹脂との接着力が十
分あるものにする。
（２）ＰＣ鋼より線に対する十分な保持力を確保するた
めに、スリーブとの間に鉄、鋼を含む金属類を介在させ
るが、この金属類は粉体塗装製の被覆を突き破り、ＰＣ
鋼より線の表面に達するものでなければならない。
何故なら、金属類を介在させないで、直接、スリーブを
圧縮して圧着加工させると、スリーブとＰＣ鋼より線の
間に樹脂被覆の界面が生じて、ＰＣ鋼より線の引張り力
に対する保持力の問題が生じ、保持力を確保するために
は、スリーブを長くする必要があり、長期的に引張り力
がかかる場合、不安定である。また、金属類を介在させ
た時でも、この金属類が圧着時ＰＣ鋼より線の表面に到
達しないならば、やはりＰＣ鋼より線の引張り力に対し
て、保持力に問題を生じるからである。図１は本発明の
実施例を示すが、ＰＣ鋼より線１の端部表面を清浄化処
理し、粉体塗装により樹脂被覆９を形成し、金網状筒10
を間にしてスリーブ２を嵌める。図は圧縮加工後を示し
ているが、金網状筒を形成する金属類はＰＣ鋼より線１
の表面に達し、同時にスリーブ内とも圧接されているこ
とを示す。SUMMARY OF THE INVENTION The present invention has solved the above-mentioned problems, and from the following viewpoints,
Take steps to improve. (1) PC steel strands and sleeves do not come into direct contact with each other during upward and downward movement due to repeated stress. (2) The supply of oxygen to the portion of the PC stranded wire is reduced as much as possible. (3) It has a sufficient holding force for the tensile force of the PC steel strand. As means for satisfying these requirements, (1) at least the surface of the portion of the PC steel wire to be subjected to crimping force processing is powder coated with resin. Of course, this powder coating treats the surface of the PC steel strand so that it has sufficient adhesion to the resin. (2) In order to secure a sufficient holding force for PC stranded wire, metals such as iron and steel are interposed between the sleeve and the steel. The metals penetrate the powder coating coating and
It must reach the surface of steel strands. The reason is that if the sleeve is directly compressed and pressure-bonded without the interposition of metals, an interface of the resin coating is generated between the sleeve and the PC steel wire, and the holding force against the tensile force of the PC steel wire is increased. Problems arise and it is necessary to lengthen the sleeve in order to secure the holding force, and it is unstable when a tensile force is applied for a long period of time. Further, even when metals are interposed, if the metals do not reach the surface of the PC steel wire during crimping, there will still be a problem with the holding force with respect to the tensile force of the PC steel wire. . FIG. 1 shows an embodiment of the present invention, in which the end surface of PC steel strand 1 is subjected to a cleaning treatment, a resin coating 9 is formed by powder coating, and a wire mesh cylinder 10
Insert the sleeve 2 with the gap in between. The figure shows after compression processing, but the metal forming the wire mesh cylinder is PC steel stranded wire 1
The surface of the sleeve is reached, and at the same time, the inside of the sleeve is pressed.
【０００５】[0005]
【作用】このように、表面を十分処理してＰＣ鋼より線
に粉体塗装により樹脂被覆を接着させ、その外周に金属
類を巻きつけ、さらにスリーブを嵌め、このスリーブを
圧着加工することにより、金属類が樹脂被覆を突き破
り、ＰＣ鋼より線の表面に到達すると、ＰＣ鋼より線の
引張り力方向の保持力に対しては、金属類との摩擦抵抗
力と同時に樹脂との摩擦力が効果を発揮する。また、く
り返しの応力によるＰＣ鋼より線の上、下運動において
は、樹脂によってスリーブとＰＣ鋼より線の直接の接触
を防ぎ、かつ樹脂被覆でＰＣ鋼より線表面が被われてい
るので、金属類が樹脂被覆を突き破ってＰＣ鋼より線の
表面に到達しても、外部からの酸素の供給は絶たれるこ
とにより、ＰＣ鋼より線表面でのフレッチングが生じる
ことはなくなり、優れた疲労特性のものが得られる。As described above, the surface is sufficiently treated, the resin coating is adhered to the PC steel wire by powder coating, the metal is wound around the outer periphery, the sleeve is fitted, and the sleeve is pressure-bonded. When the metal breaks through the resin coating and reaches the surface of the PC steel wire, the holding force in the direction of the tensile force of the PC steel wire causes the frictional resistance with the metal and the frictional force with the resin. Be effective. Further, in the upward and downward movements of the PC steel wire due to the repeated stress, the resin prevents the sleeve and the PC steel wire from directly contacting each other, and the resin coating covers the surface of the PC steel wire. Even if the material breaks through the resin coating and reaches the surface of the PC steel wire, the oxygen supply from the outside is cut off, so that fretting does not occur on the PC steel wire surface and excellent fatigue properties Things are obtained.
【０００６】（疲労試験）図１に示す本発明の実施例に
おいて、金網の筒状介在物を用い、径が15.2mmのＰＣ鋼
より線、上限荷重 190kg/mm2×0.45＝85.5kg/mm2以下
で、くり返し速さ４Hzで定着部の疲労試験を行い、同時
に上記ＰＣ鋼より線を用い、従来の定着法を示す図３の
金網の筒状介在物を用いるもの、図７のスリーブ端部切
欠部に硬化性エポキシ樹脂を注入したものを同一条件で
試験した。なお、本実施例における樹脂被覆は静電塗装
によりエポキシ系の粉体を塗装し、半硬化させたもの
で、その厚みは0.7mm であり、鋼製スリーブは、樹脂被
覆を備えるＰＣ鋼より線の外周に前記金網の筒状介在物
を用いて、内側にあるＰＣ鋼より線の中心方向に所定の
圧縮を加えたとき、前記金網がＰＣ鋼より線の表面のエ
ポキシ被覆を破り、金網の一面がＰＣ鋼より線の表面と
直接接触できる程度の径としている。その試験結果は、
図２の特性グラフに示される。応力振幅を変更して、４
Hzのくり返し周期で破断試験を行った。丸印は本発明に
よる定着端部を示し、黒丸印は破断、白丸印は未破断を
示し、四角印は図７による定着端部を示し、黒四角印は
破断、白四角印は未破断を示し、三角印は図３による定
着端部を示し、黒三角印は破断、白三角印は未破断を示
している。このグラフによれば、本発明の定着端部は図
７、図１に示したような従来の定着端部に比較して、格
段に疲労強度が優れていることが明らかである。(Fatigue Test) In the embodiment of the present invention shown in FIG. 1, PC wire having a diameter of 15.2 mm and a stranded wire of cylindrical inclusion of wire mesh, upper limit load 190 kg / mm 2 × 0.45 = 85.5 kg / mm A fatigue test of the fixing part was performed at a repetition rate of 4 Hz at 2 or less, and at the same time, the above-mentioned PC steel wire was used and the tubular inclusion of the wire mesh of FIG. 3 showing the conventional fixing method was used, and the sleeve end of FIG. What injected the curable epoxy resin into the notch part was tested under the same conditions. The resin coating in this embodiment is an epoxy-based powder coated by electrostatic coating and is semi-cured, the thickness is 0.7 mm, and the steel sleeve is a PC steel stranded wire having a resin coating. When a predetermined compression is applied in the center direction of the inner PC steel wire by using the tubular inclusion of the wire mesh on the outer periphery of the wire mesh, the wire mesh breaks the epoxy coating on the surface of the PC steel wire and The diameter is such that one surface can directly contact the surface of the PC steel strand. The test result is
This is shown in the characteristic graph of FIG. Change the stress amplitude to 4
A rupture test was performed at a repeating cycle of Hz. The circle indicates the fixing end according to the present invention, the black circle indicates breakage, the white circle indicates non-breakage, the square mark indicates the fixing end according to FIG. 7, the black square mark indicates breakage, and the white square mark indicates non-breakage. 3, the triangular mark indicates the fixing end portion according to FIG. 3, the black triangular mark indicates breakage, and the white triangular mark indicates non-breakage. According to this graph, it is apparent that the fixing end portion of the present invention has markedly better fatigue strength than the conventional fixing end portion as shown in FIGS.
【０００７】なお、ＰＣ鋼より線の端部に粉体塗装をす
るだけでなく、ＰＣ鋼より線全長に粉体塗装をすること
によって耐食性も向上させたＰＣ鋼より線とその定着端
部を提供することができる。また、ＰＣ鋼より線の表面
には、表面処理した後、粉体塗装により樹脂を被覆して
いるが、接着性、膜厚の均一性等から考えて最適であ
る。通常の樹脂を定着するところに塗布して同様に金属
類を介在させ、スリーブを圧着加工しても疲労特性の改
善は期待できるが、接着性、膜厚の均一性が粉体塗装よ
り低下するから、粉体塗装によるほどは、引張り力に対
する保持力、ならびに疲労特性の向上は期待できない。It should be noted that not only is the powder coating applied to the ends of the PC steel wire, but the entire length of the PC steel wire is also powder coated to improve the corrosion resistance. Can be provided. Further, the surface of the PC steel stranded wire is coated with resin by powder coating after surface treatment, but it is optimal considering the adhesiveness and the uniformity of the film thickness. Even if the normal resin is applied to the place where it is fixed and the metal is similarly interposed, and the sleeve is pressure-bonded, the fatigue property can be expected to be improved, but the adhesiveness and the uniformity of the film thickness are lower than those of powder coating. Therefore, it cannot be expected that the holding force against the tensile force and the fatigue property will be improved as much as the powder coating.
【０００８】[0008]
【発明の効果】以上説明したように、本発明のＰＣ鋼よ
り線の定着端部の構成によれば、くり返し引張り力に対
する疲労強度を従来の同様スリーブを用いたものに比
べ、格段に改善することができ、プレストレストコンク
リート部材、斜張橋用吊材、アウターケーブル等に適用
することができる。As described above, according to the constitution of the fixing end portion of the PC steel strand of the present invention, the fatigue strength against repeated tensile force is remarkably improved as compared with the conventional one using the sleeve. It can be applied to prestressed concrete members, suspension materials for cable-stayed bridges, outer cables, and the like.
【図１】本発明の実施例を示す。FIG. 1 shows an embodiment of the present invention.
【図２】本発明、図７、図３によるＰＣ鋼より線の定着
端部の疲労試験の結果をグラフで示す。FIG. 2 is a graph showing the results of a fatigue test of a fixing end portion of a PC steel strand according to the present invention, FIGS. 7 and 3.
【図３】従来のＰＣ鋼より線の定着端部を示す。FIG. 3 shows a fixing end of a conventional PC stranded wire.
【図４】従来のＰＣ鋼より線の定着端部を示す。FIG. 4 shows the anchoring end of a conventional PC stranded wire.
【図５】従来のＰＣ鋼より線の定着端部を示す。FIG. 5 shows a fixing end of a conventional PC stranded wire.
【図６】従来のＰＣ鋼より線の定着端部を示す。FIG. 6 shows a fixing end of a conventional PC stranded wire.
【図７】従来のＰＣ鋼より線を複数本より合わせたケー
ブルの定着端部を示す。FIG. 7 shows a fixing end portion of a cable formed by twisting a plurality of conventional PC steel strands together.
【符号の説明】 １ ＰＣ鋼より線 1' ＰＣ鋼より線複数本をより合わせたケーブル ２ スリーブ ３ コイル状ばね 3' 金網状筒 ４ プレート ５ ストッパー ６ テーパー ７ 切欠部 ８ 樹脂 ９ 樹脂被覆 10 金網状筒[Explanation of symbols] 1 PC steel stranded wire Cable made by twisting multiple 1'PC steel strands 2 sleeve 3 coiled spring 3'wire mesh tube 4 plates 5 stopper 6 taper 7 Notch 8 resin 9 Resin coating 10 wire mesh tube
Claims (3)
ＰＣ鋼より線の外周に金属類を介在させて鋼製のスリー
ブを嵌め、前記スリーブを圧縮して、前記介在の金属類
が前記樹脂被覆を突き破り、ＰＣ鋼より線の表面に達す
るように、金属類を介在させてスリーブをＰＣ鋼より線
に圧着加工してなることを特徴とするＰＣ鋼より線の定
着端部。1. A steel sleeve is fitted to the outer circumference of a PC steel strand having a resin coating on the surface by powder coating, the sleeve is compressed, and the interposing metal is the resin. A fixing end portion of a PC steel wire, characterized in that the sleeve is crimped to the PC steel wire by interposing metals so as to break through the coating and reach the surface of the PC steel wire.
形成したものであることを特徴とする請求項１によるＰ
Ｃ鋼より線の定着端部。2. The P according to claim 1, wherein the metal is formed in a coil shape or a wire mesh in a cylindrical shape.
C steel stranded wire fixing end.
したものであることを特徴とする請求項１によるＰＣ鋼
より線の定着端部。3. The fixing end portion of a PC steel strand according to claim 1, wherein the metal is formed in a tubular shape with an internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21619791A JP2924930B2 (en) | 1991-08-01 | 1991-08-01 | Anchored end of PC strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21619791A JP2924930B2 (en) | 1991-08-01 | 1991-08-01 | Anchored end of PC strand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0533425A true JPH0533425A (en) | 1993-02-09 |
| JP2924930B2 JP2924930B2 (en) | 1999-07-26 |
Family
ID=16684797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21619791A Expired - Lifetime JP2924930B2 (en) | 1991-08-01 | 1991-08-01 | Anchored end of PC strand |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2924930B2 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029357A1 (en) * | 1993-06-04 | 1994-12-22 | E.I. Du Pont De Nemours And Company | Process for removal of ash-producing residues from vinyl(alcohol)polymers |
| JPH09170294A (en) * | 1995-12-20 | 1997-06-30 | Times Eng:Kk | Steel tension member anchoring device and manufacture thereof |
| KR100454636B1 (en) * | 1999-06-04 | 2004-11-03 | 구로사와 겐세츠 가부시키가이샤 | Compression clip of pc steel material |
| WO2011019075A1 (en) * | 2009-08-12 | 2011-02-17 | 東京製綱株式会社 | Structure and method for affixing terminal of linear body made of fiber reinforced plastic |
| JP2014125707A (en) * | 2012-12-27 | 2014-07-07 | Tokyo Seiko Co Ltd | Terminal fixing structure and method of striatum made of fiber reinforced plastics |
| CN108390347A (en) * | 2018-03-27 | 2018-08-10 | 中天科技海缆有限公司 | A kind of underwater dynamic cable clump weight |
| JP2021105299A (en) * | 2019-12-26 | 2021-07-26 | 住友電気工業株式会社 | Anchorage device, and pc steel twisted wire with anchorage device |
-
1991
- 1991-08-01 JP JP21619791A patent/JP2924930B2/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994029357A1 (en) * | 1993-06-04 | 1994-12-22 | E.I. Du Pont De Nemours And Company | Process for removal of ash-producing residues from vinyl(alcohol)polymers |
| JPH09170294A (en) * | 1995-12-20 | 1997-06-30 | Times Eng:Kk | Steel tension member anchoring device and manufacture thereof |
| KR100454636B1 (en) * | 1999-06-04 | 2004-11-03 | 구로사와 겐세츠 가부시키가이샤 | Compression clip of pc steel material |
| WO2011019075A1 (en) * | 2009-08-12 | 2011-02-17 | 東京製綱株式会社 | Structure and method for affixing terminal of linear body made of fiber reinforced plastic |
| CN102482845A (en) * | 2009-08-12 | 2012-05-30 | 东京制纲株式会社 | Structure and method for affixing terminal of linear body made of fiber reinforced plastic |
| US8425143B2 (en) | 2009-08-12 | 2013-04-23 | Tokyo Rope Manufacturing Co., Ltd. | End anchoring structure and method for fiber-reinforced plastic filament body |
| JP5426678B2 (en) * | 2009-08-12 | 2014-02-26 | 東京製綱株式会社 | End fixing structure and method for fiber reinforced plastic filaments |
| JP2014125707A (en) * | 2012-12-27 | 2014-07-07 | Tokyo Seiko Co Ltd | Terminal fixing structure and method of striatum made of fiber reinforced plastics |
| CN108390347A (en) * | 2018-03-27 | 2018-08-10 | 中天科技海缆有限公司 | A kind of underwater dynamic cable clump weight |
| JP2021105299A (en) * | 2019-12-26 | 2021-07-26 | 住友電気工業株式会社 | Anchorage device, and pc steel twisted wire with anchorage device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2924930B2 (en) | 1999-07-26 |
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