JPH0797813A - Grip press-fitting method for anchor tension member - Google Patents
Grip press-fitting method for anchor tension memberInfo
- Publication number
- JPH0797813A JPH0797813A JP26557193A JP26557193A JPH0797813A JP H0797813 A JPH0797813 A JP H0797813A JP 26557193 A JP26557193 A JP 26557193A JP 26557193 A JP26557193 A JP 26557193A JP H0797813 A JPH0797813 A JP H0797813A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- insert
- grip
- steel material
- tensile 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
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、アンカーの引張材にグ
リップを圧着する方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for crimping a grip to a tension member of an anchor.
【０００２】[0002]
【従来の技術】アンカーは、一般に地中に削孔してＰＣ
鋼より線等の引張鋼材を挿入し、アンカーペーストを充
填して固化させて定着体を構成し、定着体と周面地盤と
の摩擦抵抗及び定着体と引張鋼材との間の付着力によ
り、引張鋼材に作用する引き抜き力に抵抗させている。
従って、アンカーの抵抗力を向上させるためには、引張
鋼材と定着体との付着力を増大させることが要求され
る。そのため従来、引張鋼材と定着体の付着力を向上さ
せるために、引張鋼材に複数個のグリップを所定間隔で
設けたものが提案されている。2. Description of the Related Art Anchors are generally drilled in the ground to make PC.
By inserting a tensile steel material such as steel stranded wire, filling the anchor paste and solidifying it to form a fixing body, due to the frictional resistance between the fixing body and the peripheral ground and the adhesive force between the fixing body and the tensile steel material, It resists the pulling force acting on the tensile steel.
Therefore, in order to improve the resistance of the anchor, it is required to increase the adhesive force between the tensile steel material and the fixing body. Therefore, conventionally, in order to improve the adhesive force between the tensile steel material and the fixing member, a tensile steel material provided with a plurality of grips at predetermined intervals has been proposed.
【０００３】[0003]
【発明が解決しようとする課題】上記のように、引張鋼
材に取り付けたグリップには引き抜き力が作用するた
め、グリップと引張鋼材とを確実に一体化することが望
まれる。しかし、グリップは、引張鋼材の外周面を把持
するように取り付けられるため、一体化することが困難
である。As described above, since the pulling force acts on the grip attached to the tensile steel material, it is desired to surely integrate the grip and the tensile steel material. However, since the grip is attached so as to grip the outer peripheral surface of the tensile steel material, it is difficult to integrate the grip.
【０００４】[0004]
【課題を解決するための手段】本発明は、上記のような
問題点を解決するためになされたもので、簡易な方法に
より、引張鋼材とグリップを確実に一体化することがで
きるアンカー引張材のグリップ圧着方法を提供すること
を目的とする。即ち、本発明は、アンボンド型引張材の
シースの一部を切り欠いて引張鋼材を露出させ、この引
張鋼材の露出部に、円筒形の鋼材の内外周面に凹凸を形
成して軸方向に複数に分割したインサートを被せ、さら
にインサートの外側に円筒形の鋼材であるスリーブを装
着し、このスリーブをダイス内に圧入して径が縮小する
方向に圧縮し、スリーブ及びインサートを引張鋼材に一
体に圧着する、アンカー引張材のグリップ圧着方法であ
る。また、上記方法において、インサートの内外周面に
は、周方向に複数の溝を刻設したアンカー引張材のグリ
ップ圧着方法である。SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an anchor tension member capable of reliably integrating a tension steel member and a grip by a simple method. An object of the present invention is to provide a grip crimping method. That is, according to the present invention, a part of the sheath of the unbonded tensile member is cut out to expose the tensile steel material, and the exposed portion of the tensile steel material is formed with concavities and convexities on the inner and outer peripheral surfaces of the cylindrical steel material in the axial direction. Cover the insert into multiple pieces, and then attach a sleeve made of cylindrical steel to the outside of the insert, press this sleeve into the die and compress it in the direction of decreasing the diameter, and integrate the sleeve and insert into the tensile steel material. It is a method of crimping a grip of an anchor tension material that is crimped to. Further, the above method is a grip crimping method of an anchor tension member in which a plurality of grooves are engraved in the circumferential direction on the inner and outer peripheral surfaces of the insert.
【０００５】[0005]
【実施例】以下、図面を参照しながら、本発明の一実施
例について説明する。 ＜イ＞引張鋼材の取付部の形成（図２） 図２は、引張鋼材１にシース１１を被覆して形成したア
ンボンドタイプの引張材である。この引張材にグリップ
を取り付けるために、シース１１の一部を切り欠いて引
張鋼材１を露出させ、取付部１２を形成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. <B> Formation of Attaching Section of Tensile Steel Material (FIG. 2) FIG. 2 shows an unbonded tensile material formed by coating the tensile steel material 1 with the sheath 11. In order to attach a grip to this tensile material, a part of the sheath 11 is cut out to expose the tensile steel material 1 to form a mounting portion 12.
【０００６】＜ロ＞インサート及びスリーブの構造（図
３、４） グリップは、図３、４に示すように、円筒形の鋼材の内
外周面に凹凸を形成して、軸方向に複数に分割したイン
サート２と（図は二つ割りの場合を示す）、円筒形の鋼
材であるスリーブ２からなる。インサート２は、露出さ
せた引張鋼材１の外径とほぼ等しい内径を有している。
また、インサート２の内外周面の凹凸は、周方向に複
数の溝を刻設することが考えられる。このように周方向
に溝を刻設することは、アンカーの引き抜け力の作用方
向に対して直交方向の凹凸を形成することになるため、
引き抜き抵抗を増大させることができる。スリーブ２１
は、インサート２の外径より僅かに大きい内径を有して
おり、インサート２に外側に装着可能である。<B> Structure of insert and sleeve (FIGS. 3 and 4) As shown in FIGS. 3 and 4, the grip is formed by forming concavities and convexities on the inner and outer peripheral surfaces of a cylindrical steel material and dividing it into a plurality of parts in the axial direction. And the insert 2 (the figure shows the case of splitting into two) and the sleeve 2 which is a cylindrical steel material. The insert 2 has an inner diameter substantially equal to the outer diameter of the exposed tensile steel material 1.
In addition, it is conceivable that the unevenness on the inner and outer peripheral surfaces of the insert 2 is formed by engraving a plurality of grooves in the circumferential direction. By engraving the groove in the circumferential direction in this manner, since unevenness is formed in the direction orthogonal to the acting direction of the pulling force of the anchor,
The pullout resistance can be increased. Sleeve 21
Has an inner diameter slightly larger than the outer diameter of the insert 2, and can be mounted on the outer side of the insert 2.
【０００７】＜ハ＞ダイスの形状（図５） ダイス３は、例えば図５に示すように、中央にスリーブ
２１の外径よりも小さい径の圧入孔３１を有するものを
使用する。この圧入孔３１のスリーブ２１の圧入口側に
は、スリーブ２１を圧入しやすいようにテーパー３２を
形成すると良い。<C> Die Shape (FIG. 5) As the die 3, for example, as shown in FIG. 5, a die having a press-fitting hole 31 having a diameter smaller than the outer diameter of the sleeve 21 is used. A taper 32 may be formed on the press-fitting side of the press-fitting hole 31 of the sleeve 21 to facilitate press-fitting of the sleeve 21.
【０００８】＜ニ＞インサート及びスリーブの取り付け
（図５） 図５に示すように、ダイス３の圧入孔３１内に引張鋼材
１を貫通させ、引張鋼材１を露出させた取付部１２に、
先ずインサート２を合致させて被せ、さらにインサート
２の外側にスリーブ２１を装着する。この際に、取付部
１２の軸方向の寸法と、インサート２及びスリーブ２１
の軸方向の寸法はほぼ等しく形成し、引張鋼材１が露出
しないようにする。次に、引張鋼材１のダイス３の反対
側に、プランジャ４１をスリーブ２１に当接させた状態
で、ジャッキ４を装備する。このジャッキ４は、軸方向
に貫通孔を有するセンターホール型のものを使用し、引
張鋼材１を貫通させた状態で装着する。<D> Mounting of Insert and Sleeve (FIG. 5) As shown in FIG. 5, the tensile steel material 1 is penetrated into the press-fitting hole 31 of the die 3 and the tensile steel material 1 is exposed at the mounting portion 12.
First, the insert 2 is fitted and covered, and then the sleeve 21 is attached to the outside of the insert 2. At this time, the axial dimension of the mounting portion 12, the insert 2 and the sleeve 21
The tensile steel materials 1 are formed so that their axial dimensions are substantially equal to each other so that they are not exposed. Next, the jack 4 is mounted on the opposite side of the die 3 of the tensile steel material 1 while the plunger 41 is in contact with the sleeve 21. The jack 4 is a center hole type one having a through hole in the axial direction, and is mounted with the tensile steel material 1 penetrating.
【０００９】＜ホ＞インサート及びスリーブの圧着（図
１、６） 次に、ジャッキ４を伸長させ、プランジャ４１によりス
リーブ２１をダイス３の圧入孔３１内に圧入する。これ
によって、スリーブ２１は径が縮小する方向に圧縮する
ため、インサート２の内外周面に設けた凹凸が、スリー
ブ２１及び引張鋼材１に食い込む。従って、インサート
２及びスリーブ２１からなるグリップを、引張鋼材１に
強固に圧着することができる。<E> Crimping of insert and sleeve (FIGS. 1 and 6) Next, the jack 4 is extended, and the sleeve 21 is pressed into the press-fitting hole 31 of the die 3 by the plunger 41. As a result, the sleeve 21 is compressed in the direction in which the diameter is reduced, so that the irregularities provided on the inner and outer peripheral surfaces of the insert 2 bite into the sleeve 21 and the tensile steel material 1. Therefore, the grip composed of the insert 2 and the sleeve 21 can be firmly pressure-bonded to the tensile steel material 1.
【００１０】[0010]
【本発明の効果】本発明は以上説明したようになるた
め、次のような効果を得ることができる。 ＜イ＞本発明は、引張鋼材の露出部にインサートとスリ
ーブを被せ、これらをダイスに圧入するだけで、引張鋼
材にグリップを圧着することができる。従って、非常に
簡単な方法であるため、グリップ付きアンカーの作製コ
ストを低減することができる。 ＜ロ＞インサートの凹凸が引張鋼材及びスリーブに食い
込むため、グリップを確実に引張鋼材に取り付けること
ができる。従って、引き抜き力に十分抵抗できるアンカ
ーグリップを得ることができる。 ＜ハ＞インサートの内外周面に周方向に溝を刻設するこ
とによって、アンカーの引き抜け力の作用方向に対して
直交方向の凹凸を形成することになるため、引き抜き抵
抗を増大させることができる。Since the present invention is as described above, the following effects can be obtained. <A> In the present invention, the grip can be crimped to the tensile steel material only by covering the exposed portion of the tensile steel material with the insert and the sleeve and press-fitting these into the die. Therefore, the manufacturing cost of the anchor with a grip can be reduced because it is a very simple method. <B> Since the unevenness of the insert bites into the tensile steel material and the sleeve, the grip can be securely attached to the tensile steel material. Therefore, it is possible to obtain an anchor grip that can sufficiently resist the pulling force. <C> By engraving a groove in the inner and outer peripheral surfaces of the insert in the circumferential direction, unevenness is formed in a direction orthogonal to the action direction of the pull-out force of the anchor, so that pull-out resistance can be increased. it can.
【図１】 グリップをダイスに圧入する工程の説明図FIG. 1 is an explanatory view of a process of press-fitting a grip into a die.
【図２】 アンカー引張材のグリップ取付部の形成方法
の説明図FIG. 2 is an explanatory view of a method for forming a grip attachment portion of an anchor tension member.
【図３】 インサートの斜視図FIG. 3 is a perspective view of the insert.
【図４】 スリーブの斜視図FIG. 4 is a perspective view of a sleeve.
【図５】 インサート及びスリーブを引張鋼材に取り付
けた状態の説明図FIG. 5 is an explanatory view of a state where the insert and the sleeve are attached to the tensile steel material.
【図６】 グリップ圧着完成状態の説明図FIG. 6 is an explanatory diagram of a completed state of grip crimping.
Claims (2)
り欠いて引張鋼材を露出させ、 この引張鋼材の露出部に、円筒形の鋼材の内外周面に凹
凸を形成して軸方向に複数に分割したインサートを被
せ、 さらにインサートの外側に円筒形の鋼材であるスリーブ
を装着し、 このスリーブをダイス内に圧入して径が縮小する方向に
圧縮し、 スリーブ及びインサートを引張鋼材に一体に圧着する、 アンカー引張材のグリップ圧着方法。1. A tensile steel material is exposed by cutting out a part of a sheath of an unbonded tensile material, and the exposed portion of the tensile steel material is formed with concavities and convexities on the inner and outer peripheral surfaces of a cylindrical steel material to form a plurality in the axial direction. Cover the insert into pieces, and then mount a sleeve made of cylindrical steel on the outside of the insert.Press this sleeve into the die to compress it in the direction of decreasing the diameter, and integrate the sleeve and insert into the tensile steel material. Anchor tension material grip crimping method.
数の溝を刻設した請求項１記載のアンカー引張材のグリ
ップ圧着方法。2. The grip crimping method for an anchor tension member according to claim 1, wherein a plurality of grooves are formed in the inner and outer peripheral surfaces of the insert in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26557193A JP2879519B2 (en) | 1993-09-29 | 1993-09-29 | Grip crimping method of anchor tensile material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26557193A JP2879519B2 (en) | 1993-09-29 | 1993-09-29 | Grip crimping method of anchor tensile material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0797813A true JPH0797813A (en) | 1995-04-11 |
| JP2879519B2 JP2879519B2 (en) | 1999-04-05 |
Family
ID=17418968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26557193A Expired - Fee Related JP2879519B2 (en) | 1993-09-29 | 1993-09-29 | Grip crimping method of anchor tensile material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2879519B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571698B1 (en) | 1999-11-30 | 2003-06-03 | Tohoku Ricoh Co., Ltd. | Master making and feeding device for a printer |
| KR101420763B1 (en) * | 2012-12-17 | 2014-07-18 | (주)가온 | Earth anchor and ground reinforcing structure using it |
| KR101492171B1 (en) * | 2012-12-21 | 2015-02-10 | 삼보이엔씨 주식회사 | Apparatus for leveling system ofunderwater bottom |
-
1993
- 1993-09-29 JP JP26557193A patent/JP2879519B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6571698B1 (en) | 1999-11-30 | 2003-06-03 | Tohoku Ricoh Co., Ltd. | Master making and feeding device for a printer |
| KR101420763B1 (en) * | 2012-12-17 | 2014-07-18 | (주)가온 | Earth anchor and ground reinforcing structure using it |
| KR101492171B1 (en) * | 2012-12-21 | 2015-02-10 | 삼보이엔씨 주식회사 | Apparatus for leveling system ofunderwater bottom |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2879519B2 (en) | 1999-04-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0127721B2 (en) | ||
| JPH0797813A (en) | Grip press-fitting method for anchor tension member | |
| US6485196B2 (en) | Optical fiber cord fixing component | |
| CA2410701A1 (en) | High torque retention joint in a tensioner | |
| JPS609285Y2 (en) | Intermediate fixing tool for PC steel materials | |
| JPH0262842B2 (en) | ||
| JP3293026B2 (en) | Member having fitting portion, method of manufacturing and mounting method | |
| JP2969878B2 (en) | Connection method of steel core aluminum stranded wire | |
| JP3758332B2 (en) | Glow plug manufacturing method | |
| JPS59779Y2 (en) | joint | |
| JP2787288B2 (en) | Method for manufacturing steel tensile material fixing device | |
| JP3020439U (en) | Tarup | |
| JPS6338677Y2 (en) | ||
| JPH08333842A (en) | Fixing device for end section of tension member made of steel and assembling method thereof | |
| JPH0376033U (en) | ||
| JPS61124711A (en) | Special nail for aerated concrete and manufacture thereof | |
| JPH07109776A (en) | Joint bar anchor and manufacture and production device thereof | |
| JP3001773U (en) | Cable connection | |
| JPH0280112U (en) | ||
| JP2572239Y2 (en) | Conductor fitting | |
| JPS6345796Y2 (en) | ||
| JPS5910903Y2 (en) | Cable sheath gripping part | |
| JPH041829B2 (en) | ||
| JPH047637Y2 (en) | ||
| JPH0375344U (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 19981201 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |