JPH0426478Y2 - - Google Patents
Info
- Publication number
- JPH0426478Y2 JPH0426478Y2 JP1986201903U JP20190386U JPH0426478Y2 JP H0426478 Y2 JPH0426478 Y2 JP H0426478Y2 JP 1986201903 U JP1986201903 U JP 1986201903U JP 20190386 U JP20190386 U JP 20190386U JP H0426478 Y2 JPH0426478 Y2 JP H0426478Y2
- Authority
- JP
- Japan
- Prior art keywords
- strand
- head
- wire
- anchor head
- conical
- 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
Links
- 230000004323 axial length Effects 0.000 claims 1
- 230000003068 static effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 101150105594 SCM3 gene Proteins 0.000 description 1
- 101100202505 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) SCM4 gene Proteins 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- VNTLIPZTSJSULJ-UHFFFAOYSA-N chromium molybdenum Chemical compound [Cr].[Mo] VNTLIPZTSJSULJ-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
この考案は斜張橋、吊屋根あるいはTLP
（Tension Leg Platform）などの吊り構造物に
適用されるケーブルの素線の端末定着構造に関す
るものである。[Detailed explanation of the invention] (Industrial application field) This invention is suitable for cable-stayed bridges, suspended roofs or TLP
This relates to a terminal fixing structure for cable strands that is applied to suspended structures such as (tension leg platforms).
（従来技術）
従来、上記吊り構造物に適用されるケーブルの
素線の端末定着構造は、例えば第５図に示すよう
に構成されている。すなわち、ケーブルの素線１
の端部がアンカーヘツド６の貫通穴に貫通され、
その端部には外周に突出する鍔部１０２を有する
ヘツド１００が形成され、素線１に作用する張力
を鍔部１０２で受けるようにしている。この構成
では静的な力に対しては十分な強度を発揮する
が、繰返し作用する動的な力に対しては疲労破壊
が発生しやすく、応力が集中する鍔部１０２の基
端部１０１から亀裂が発生して破損しやすいとい
う欠点がある。(Prior Art) Conventionally, a cable strand terminal fixing structure applied to the above-mentioned hanging structure is configured as shown in FIG. 5, for example. That is, strand 1 of the cable
The end of the anchor head 6 is penetrated into the through hole of the anchor head 6,
A head 100 having a flange 102 projecting to the outer periphery is formed at the end thereof, and the flange 102 receives the tension acting on the wire 1 . Although this configuration exhibits sufficient strength against static forces, fatigue failure is likely to occur against dynamic forces that act repeatedly. It has the disadvantage of being prone to cracking and damage.
上記疲労破壊を防止するために、応力の集中す
る部分に軟質材料の充填材を充填することも考え
られるが、その場合には充填材の充填のために構
造を付加する必要があり、また充填作業に手間が
かかるという問題もある。 In order to prevent the above-mentioned fatigue fracture, it is possible to fill the areas where stress is concentrated with soft material filler, but in that case, it is necessary to add a structure to fill the filler, and the filling There is also the problem that the work is time-consuming.
（考案の目的）
この考案は、このような従来の欠点を解消する
ためになされたものであり、簡単な構造で静的強
度および動的強度に優れたケーブルの素線の端末
定着構造を提供するものである。(Purpose of the invention) This invention was made to eliminate such conventional drawbacks, and provides a terminal fixing structure for cable strands that has a simple structure and excellent static and dynamic strength. It is something to do.
（考案の構成）
この考案は、素線の端部に徐々に先太の円錐部
が形成され、その端部に外周に突出する鍔部を有
する頭部が形成され、アンカーヘツドの貫通穴に
は素線の外周に対応する平行部と上記円錐部に対
応する先広がり部とが形成され、上記円錐部がア
ンカーヘツドの先広がり部に全面的に圧着するよ
うに素線がアンカーヘツドに貫通されているもの
である。(Structure of the device) In this device, a conical portion that gradually becomes thicker is formed at the end of the strand, and a head having a flange projecting to the outer periphery is formed at the end, and is inserted into the through hole of the anchor head. A parallel part corresponding to the outer periphery of the strand and a tapered part corresponding to the conical part are formed, and the strand passes through the anchor head so that the conical part is fully crimped to the tapered part of the anchor head. This is what is being done.
上記構成では、素線に付与された張力はまず広
い面積の円錐部からアンカーヘツドの先広がり部
に伝達されることにより応力が分散され、これに
よつて応力集中を防止して疲労強度が高められ、
また大きな静的荷重に対しては、鍔部が支持され
ることにより素線自体の張力の100％の支持力が
発揮される。 In the above configuration, the tension applied to the strands is first transmitted from the wide-area conical part to the diverging part of the anchor head, thereby dispersing the stress, thereby preventing stress concentration and increasing fatigue strength. is,
Furthermore, for large static loads, by supporting the flange, the supporting force is 100% of the tension of the wire itself.
（実施例）
第１図において、素線１の平行部２の端部には
徐々に先太の円錐部３が形成され、さらにその先
端部に外周に突出する鍔部４を有する頭部（ボタ
ンヘツド）５が形成されている。一方、アンカー
ヘツド６の貫通穴は上記素線１の平行部２の外周
面に対応する平行部７１と上記円錐部３に対応す
る先広がり部７とが形成され、上記素線の円錐部
３がアンカーヘツド６の先広がり部７に圧着する
ように素線１がアンカーヘツド６に貫通されてい
る。(Example) In FIG. 1, a conical portion 3 that gradually becomes thicker is formed at the end of the parallel portion 2 of the strand 1, and a head ( button head) 5 is formed. On the other hand, the through hole of the anchor head 6 is formed with a parallel part 71 corresponding to the outer peripheral surface of the parallel part 2 of the strand 1 and a tapering part 7 corresponding to the conical part 3. The strand 1 is passed through the anchor head 6 such that it is crimped onto the flared part 7 of the anchor head 6.
なお、先広がり部７は予めこのような形状に形
成してもよく、あるいは平行部のみを形成したア
ンカーヘツドに素線を挿入し、圧下することによ
つて素線の円錐部で平行部を塑性変形させるよう
にしてもよい。また鍔部４の下面とアンカーヘツ
ド６の上面６１とはほぼ接触するか、あるいは多
少の隙間（例えば、0.1〜0.5mm）が形成されるよ
うにしている。 Note that the flared portion 7 may be formed in such a shape in advance, or the wire may be inserted into an anchor head in which only the parallel portion is formed, and the parallel portion may be formed by the conical portion of the wire by pressing down. It may also be plastically deformed. Further, the lower surface of the flange portion 4 and the upper surface 61 of the anchor head 6 are arranged to substantially contact each other, or to form a slight gap (for example, 0.1 to 0.5 mm).
上記素線１としては、例えばステンレス鋼線
（JISG4051）、PC鋼棒（JISG3109），PC鋼線
（JISG3536）などが用いられ、またアンカーヘツ
ドとしては、機械構造用炭素鋼鋼材S45C
（JISG4051），クロムモリブデン鋼鋼材SCM3ま
たはSCM4などが用いられる。また素線としては
単線あるいは撚線を用いてもよい。 As the wire 1, for example, stainless steel wire (JISG4051), PC steel rod (JISG3109), PC steel wire (JISG3536), etc. are used, and as the anchor head, carbon steel for machine structure S45C
(JISG4051), chromium molybdenum steel SCM3 or SCM4, etc. are used. Further, as the wire, a single wire or a twisted wire may be used.
第２図はこの考案の別の実施例を示し、素線の
円錐部３０を軸方向に湾曲した円錐面に形成さ
れ、さらにその先端部に外周に突出する鍔部４０
を有する頭部５０が形成されている。一方、アン
カーヘツド６０の貫通穴は上記素線１の平行部２
の外周面に対応する平行部７１と上記円錐部３０
に対応する先広がり部７０とが形成され、上記素
線の円錐部３０がアンカーヘツド５０の先広がり
部７０に圧着するように素線１がアンカーヘツド
６０に貫通されている。 FIG. 2 shows another embodiment of this invention, in which the conical portion 30 of the strand is formed into a conical surface curved in the axial direction, and a flange portion 40 protruding to the outer periphery at the tip thereof.
A head 50 is formed. On the other hand, the through hole of the anchor head 60 is connected to the parallel portion 2 of the strand 1.
The parallel portion 71 corresponding to the outer peripheral surface of the conical portion 30
The strand 1 is passed through the anchor head 60 so that the conical part 30 of the strand is pressed against the flaring part 70 of the anchor head 50.
上記頭部５および円錐部３の寸法は、後述の応
力に対する耐力の点から、例えば以下のように設
定すればよい。すなわち、鍔部５の外径Ｄは、素
線の平行部２の外径をｄとすると1.3〜3.0d、円
錐部３の軸方向寸法l1は0.2d〜1.5d、頭部３の高
さl2は0.5〜1.5dにすればよい。 The dimensions of the head 5 and the conical portion 3 may be set, for example, as follows from the viewpoint of resistance to stress, which will be described later. That is, the outer diameter D of the collar portion 5 is 1.3 to 3.0 d, where d is the outer diameter of the parallel portion 2 of the strand, the axial dimension l1 of the conical portion 3 is 0.2 d to 1.5 d, and the height of the head 3 is 1.3 to 3.0 d. The value of l2 should be 0.5 to 1.5d.
頭部５の外径Ｄが1.3d以下になると支圧応力q2
の支圧面積が不足し、静的応力が素線の張力の
100％以下となる。また外径Ｄが3.0d以上になる
と、冷間成形の際に割れが生じるおそれがある。
円錐部３の寸法l1が0.2d以下では疲労強度が低く
（15Kg／mm2以下）、一方15d以上では疲労強度が素
線自体と同じ（例えば45Kg／mm2）となり、それ以
上長くしても効果がない。なお、頭部の下に軟質
材（Al，Cu，Zn、樹脂）をセツトして挿入穴と
なじみを良くすれば一層効果が向上する。 When the outer diameter D of the head 5 becomes 1.3d or less, the bearing stress q 2
The bearing area of the wire is insufficient, and the static stress is
It will be less than 100%. Moreover, if the outer diameter D is 3.0 d or more, cracks may occur during cold forming.
If the dimension l 1 of the conical part 3 is 0.2d or less, the fatigue strength is low (15Kg/mm 2 or less), while if it is 15d or more, the fatigue strength is the same as the wire itself (for example, 45Kg/mm 2 ), and if it is longer than that, the fatigue strength is low (15Kg/mm 2 or less). is also ineffective. Note that the effect will be further improved if a soft material (Al, Cu, Zn, resin) is placed under the head to make it fit better with the insertion hole.
つぎに上記円錐部および頭部を形成させる方法
を説明する。第３図Ａにおいて、受台８上にチヤ
ツキングダンス８０を設置し、このチヤツキング
ダイス８０は一対の分割片から構成し、両者間に
は素線の平行部が貫通する貫通穴８８および先広
がり部８２を形成し、ここに素線１を貫通させて
チヤツキングダンス８０により側圧Psを作用さ
せることにより素線１を保持する。その状態で上
方からヘツドダンス８１を下降させて凹部８３に
より素線の端部をヘツドプレス圧Phで押圧する。
これによつて第３図Ｂに示すように素線１の端部
は塑性変形してチヤツキングダイス８０の先広が
り部８２およびヘツドダイス８１の凹部８３に沿
う形となり、円錐部３、頭部５および鍔部４が形
成される。 Next, a method for forming the conical portion and the head will be explained. In FIG. 3A, a chucking dancer 80 is installed on a pedestal 8, and this chucking die 80 is composed of a pair of split pieces, with a through hole 88 between them through which the parallel portion of the wire passes. A widening part 82 is formed, and the strand 1 is held by passing the strand 1 therethrough and applying a lateral pressure Ps by the chucking dance 80. In this state, the head dancer 81 is lowered from above and the end of the wire is pressed by the recess 83 with a head press pressure Ph.
As a result, as shown in FIG. 3B, the end of the strand 1 is plastically deformed to a shape that follows the widened part 82 of the chucking die 80 and the concave part 83 of the head die 81. 5 and a collar portion 4 are formed.
またこの頭部は素線の端部のみならず、中間部
にも形成させることができる。すなわち、第３図
Ｃに示すように、上記ヘツドダイス８１の代りに
２分割片からなるヘツドダンス８４を用い、この
ヘツドダイス８４によつて素線１の延長部１１を
保持した状態でヘツドダイス８４をチヤツキング
ダイス８０に向けて下降させることにより、上記
同様に円錐部３、頭部５および鍔部４が形成され
る。この際、素線を適当な温度に加熱して成形し
やすくしてもよい。 Further, this head can be formed not only at the ends of the strand but also at the middle part. That is, as shown in FIG. 3C, a head dancer 84 consisting of a two-piece piece is used in place of the head die 81, and the head die 84 is held while the extension part 11 of the strand 1 is held by the head die 84. By lowering it toward the king die 80, the conical portion 3, head portion 5, and collar portion 4 are formed in the same manner as described above. At this time, the wire may be heated to an appropriate temperature to facilitate shaping.
上記第１図の構造では、素線１に張力が付与さ
れると、そのその力は円錐部３が圧着された先広
がり部７で側面圧力q2として受けられる。素線１
の破断力をPuとすると、先広がり部７では
0.45Pu程度の力を受け持つことになる。そしてそ
れ以上の力が付与されると、鍔部４がアンカーヘ
ツド６の上面６１に圧着されて荷重を支圧応力q1
として受けるようになり、これによつて1.00Puの
力を受けることになる。また素線１に変動応力が
付与された場合には、上記側面圧力q2によつてそ
の力を分散して受けることになるために、疲労破
壊が生じることなく、優れた疲労強度が発揮され
る。 In the structure shown in FIG. 1, when tension is applied to the wire 1, that force is received as side pressure q2 at the flared portion 7 to which the conical portion 3 is crimped. Element wire 1
If the breaking force of is Pu, then at the widened part 7,
It will be in charge of a force of about 0.45Pu. When more force is applied, the flange 4 is pressed against the upper surface 61 of the anchor head 6 to bear the load and the stress q 1
As a result, it receives a force of 1.00Pu. Furthermore, when fluctuating stress is applied to the strand 1, the force is dispersed and received by the side pressure q2 , so fatigue failure does not occur and excellent fatigue strength is exhibited. Ru.
第４図は上記定着部が破壊するまでに素線に対
して付与した変動応力と繰返し数との関係を示
し、第５図に示す従来構造では曲線１２に示すよ
うになるのに対し、第１図に示す構造では曲線１
３に示すようになつた。この結果からも、この考
案の構造では疲労強度が従来より大幅に優れてい
ることがわかる。また第２図に示す構造でも曲線
１３とほぼ同様の結果になつた。 FIG. 4 shows the relationship between the variable stress applied to the wire and the number of repetitions until the fixing section breaks. In contrast to the conventional structure shown in FIG. In the structure shown in Figure 1, curve 1
It became as shown in 3. This result also shows that the structure of this invention has significantly better fatigue strength than the conventional structure. Further, the structure shown in FIG. 2 also gave almost the same results as curve 13.
（考案の効果）
以上説明したように、この考案は素線の端部に
円錐部と鍔部とを形成し、アンカーヘツドの先広
がり部で円錐部を支持するようにしたものであ
り、素線に付与されてた張力はまず広い面積の円
錐部からアンカーヘツドの先広がり部に伝達され
ることにより応力が分散され、これによつて応力
集中を防止して疲労強度が高められ、また大きな
静的荷重に対しては、鍔部が支持されることによ
り素線自体の張力の100％の支持力が発揮される
ものである。(Effects of the invention) As explained above, this invention forms a conical part and a flange at the end of the strand, and the conical part is supported by the widening part of the anchor head. The tension applied to the wire is first transmitted from the wide-area conical part to the diverging part of the anchor head, thereby dispersing the stress. This prevents stress concentration and increases fatigue strength. With respect to static loads, the supporting force of 100% of the tension of the wire itself is exerted by supporting the collar.
第１図はこの考案の実施例を示す断面図、第２
図はこの考案の別の実施例を示す断面図、第３図
Ａ，Ｂ，Ｃは素線に頭部を形成させる過程を示す
断面説明図、第４図は素線に付与する変動応力幅
と定着部の破断までの繰返し数との関係図、第５
図は従来の定着部の断面図である。
１……素線、２……平行部、３，３０……円錐
部、４，４０……鍔部、５，５０……頭部、６，
６０……アンカーヘツド、７，７０……先広がり
部。
Figure 1 is a sectional view showing an embodiment of this invention, Figure 2 is a sectional view showing an embodiment of this invention.
The figure is a cross-sectional view showing another embodiment of this invention, Figures 3A, B, and C are cross-sectional explanatory views showing the process of forming a head on a wire, and Figure 4 is a varying stress width applied to the wire. and the number of repetitions until breakage of the fixing part, 5th
The figure is a sectional view of a conventional fixing section. 1... Element wire, 2... Parallel part, 3, 30... Conical part, 4, 40... Flange part, 5, 50... Head, 6,
60... Anchor head, 7, 70... Widening part.
Claims (1)
その端部に外周に突出する端部を有する頭部が形
成され、アンカーヘツドの貫通穴には素線の外周
に対応する平行部と上記円錐部に対応する先広が
り部とが形成され、上記円錐部の軸方向長さは素
線の直径の0.2〜1.5倍に設定され、上記円錐部が
アンカーヘツドの先広がり部に全面的に圧着する
ように素線がアンカーヘツドに貫通されているこ
とを特徴とするケーブルの素線の端末定着構造。 A tapered conical part is gradually formed at the end of the strand,
A head having an end projecting to the outer periphery is formed at the end thereof, and a parallel part corresponding to the outer periphery of the strand and a tapered part corresponding to the conical part are formed in the through hole of the anchor head, and the above-mentioned The axial length of the conical part is set to 0.2 to 1.5 times the diameter of the strand, and the strand is passed through the anchor head so that the conical part is fully crimped to the flared part of the anchor head. A cable wire terminal fixing structure characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986201903U JPH0426478Y2 (en) | 1986-12-25 | 1986-12-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986201903U JPH0426478Y2 (en) | 1986-12-25 | 1986-12-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63106796U JPS63106796U (en) | 1988-07-09 |
| JPH0426478Y2 true JPH0426478Y2 (en) | 1992-06-25 |
Family
ID=31165795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986201903U Expired JPH0426478Y2 (en) | 1986-12-25 | 1986-12-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426478Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49123168A (en) * | 1973-03-31 | 1974-11-25 | ||
| JPS52155246A (en) * | 1976-06-18 | 1977-12-23 | Fumio Higuchi | End treating apparatus for threaddlike substance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5976599U (en) * | 1982-11-15 | 1984-05-24 | 大塚工機株式会社 | Coated wire rope end crimping structure |
-
1986
- 1986-12-25 JP JP1986201903U patent/JPH0426478Y2/ja not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49123168A (en) * | 1973-03-31 | 1974-11-25 | ||
| JPS52155246A (en) * | 1976-06-18 | 1977-12-23 | Fumio Higuchi | End treating apparatus for threaddlike substance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63106796U (en) | 1988-07-09 |
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