JPH0720176Y2 - Anchor tension material - Google Patents

Anchor tension material

Info

Publication number
JPH0720176Y2
JPH0720176Y2 JP1990060166U JP6016690U JPH0720176Y2 JP H0720176 Y2 JPH0720176 Y2 JP H0720176Y2 JP 1990060166 U JP1990060166 U JP 1990060166U JP 6016690 U JP6016690 U JP 6016690U JP H0720176 Y2 JPH0720176 Y2 JP H0720176Y2
Authority
JP
Japan
Prior art keywords
grip
tensile
cover
tension member
stress
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
Application number
JP1990060166U
Other languages
Japanese (ja)
Other versions
JPH03125834U (en
Inventor
七郎 晴山
重夫 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Metal Industry Co Ltd
Original Assignee
Suzuki Metal Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzuki Metal Industry Co Ltd filed Critical Suzuki Metal Industry Co Ltd
Priority to JP1990060166U priority Critical patent/JPH0720176Y2/en
Publication of JPH03125834U publication Critical patent/JPH03125834U/ja
Application granted granted Critical
Publication of JPH0720176Y2 publication Critical patent/JPH0720176Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Piles And Underground Anchors (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、土留壁等を支持するアンカー工法にに使用す
る応力(荷重)分散型アンカー引張材に関する。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a stress (load) dispersion-type anchor tension material used in an anchor construction method for supporting a retaining wall or the like.

(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
引張鋼材と定着体との間の付着力により引張鋼材に作用
する引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、引張鋼材と定着材との付着
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為に、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(実開昭55-96932号公報、特開昭58-600号公報)。ま
た、荷重を分散させるためグリップと根塊体との間に、
変形制御可能な止水性圧縮材を介在させたものが提案さ
れている(特開昭61-242221号公報)。
(Prior Art) An anchor is generally drilled in the ground, a tensile steel material such as PC stranded wire is inserted, and the anchor paste is filled and solidified to form a fixing body. The pulling force acting on the tensile steel material is resisted by the frictional resistance between the tensile steel material and the adhesive force between the tensile steel material and the fixing member. 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 material. Therefore, in order to improve the adhesive force between the tensile steel material and the fixing member, there has been proposed a tensile steel material provided with a plurality of grips at predetermined intervals (Japanese Utility Model Laid-Open No. 55-96932 and Japanese Patent Laid-Open No. 58-5932). -No. 600 bulletin). Also, in order to disperse the load, between the grip and the root mass,
There has been proposed one in which a water-stopping compression material capable of controlling deformation is interposed (Japanese Patent Laid-Open No. 61-242221).

(考案が解決しようとする問題点) 従来提案されているように、グリップを複数個取り付け
ることにより、引張鋼材と定着材との付着力を増大させ
る効果を奏する。しかしながら、引張応力が定着体に均
等に伝達されず、定着体に部分的に応力集中が起こり、
その応力がある限界以上に達するとその部分に微細なひ
び割れが生じ、定着体が連鎖的に破壊される現象が生じ
る。長い間ひび割れが生じたまま地中に放置して置く
と、地中の水分や有害ガス等のひび割れ部を通って定着
体内部に侵入して、引張鋼材を腐食させることになり、
アンカー強度が低下する。
(Problems to be Solved by the Invention) As has been conventionally proposed, by attaching a plurality of grips, it is possible to increase the adhesive force between the tensile steel material and the fixing material. However, the tensile stress is not evenly transmitted to the fixing body, so that the stress is partially concentrated on the fixing body.
When the stress exceeds a certain limit, fine cracks are generated in that portion, and a phenomenon occurs in which the fixing body is broken in a chain. If it is left in the ground with cracks for a long time, it will penetrate into the fixing body through the cracks such as moisture and harmful gas in the ground and corrode the tensile steel material.
Anchor strength decreases.

また、グリップの応力側に、グリップと根塊体との間に
変形制御可能な可縮材を導入した場合、荷重は分散する
が均等に分散させることに難点がある。即ち、グリップ
と根塊との間に挟む可縮材が有形なものであるために、
応力を導入したときに可縮材は可縮されるが可縮量の設
定と可縮材の移動に問題が残り、引張応力を均等に分散
することができない。
Further, when a deformable material whose deformation can be controlled is introduced between the grip and the root mass on the stress side of the grip, the load is dispersed, but there is a difficulty in evenly distributing the load. That is, since the compressible material sandwiched between the grip and the root mass is tangible,
When the stress is introduced, the shrinkable material shrinks, but problems remain in the setting of the shrinkable amount and the movement of the shrinkable material, and the tensile stress cannot be evenly distributed.

本考案は、上記実状に鑑み創案されたものであって、引
張材に加わる引張応力を均一に分散させて定着体に伝え
て、定着体との付着力を向上させると共に、応力集中に
よる定着体の微細なひび割れを防止して、引張鋼材の腐
食を防止することができるアンカー引張材を提供するこ
とを目的とするものである。
The present invention has been made in view of the above situation, and uniformly spreads the tensile stress applied to the tensile member to the fixing member to improve the adhesive force with the fixing member and to fix the fixing member by stress concentration. It is an object of the present invention to provide an anchor tension material capable of preventing fine cracks of (1) and corrosion of a tensile steel material.

(問題点を解決するための手段) 本願考案のアンカー引張材は、上記問題点を引張材に適
宜間隔で固着された複数個のグリップの外側に、引張作
用時の引張材の延びによる前記グリップの移動量に合わ
せたグリップ移動空間を前記グリップの応力側に確保す
るように、一方の端部が引張材に固定され他端部が開口
された円筒状の第1部材と、該第1部材の開口側に嵌合
する開口を有し他端部が前記引張材に固定される円筒状
の第2部材とからなるグリップカバーを取り付け、引張
材の引っ張りにより前記グリップが前記グリップカバー
内に移動してグリップ端面が前記グリップカバーの支圧
面に圧接して該グリップカバーに荷重を付加することに
より、引張応力を複数個のグリップに当量に分散させる
ようにして解決した。
(Means for Solving Problems) The anchor tension member of the present invention has the above-mentioned problems on the outside of a plurality of grips fixed to the tension member at appropriate intervals by the extension of the tension member at the time of pulling action. A cylindrical first member having one end fixed to a tension member and the other end opened so as to secure a grip moving space corresponding to the amount of movement of the grip on the stress side of the grip, and the first member. Is attached to the opening side and the other end of the cylindrical second member is fixed to the tension member, and a grip cover is attached, and the grip moves into the grip cover by pulling the tension member. Then, the grip end surface is brought into pressure contact with the bearing surface of the grip cover to apply a load to the grip cover, whereby the tensile stress is dispersed to a plurality of grips in an equivalent amount.

また、前記空間に防錆油を充填し、グリップカバーに該
防錆油が移動するスリットを形成することによって、引
張鋼材の腐食防止を図っている。
Further, the space is filled with rust preventive oil, and the grip cover is provided with a slit through which the rust preventive oil moves, thereby preventing corrosion of the tensile steel material.

上記構成において、引張応力量を完全に均等に分散する
ためにグリップの移動機構を与えるには、次の式でグリ
ップ移動量を求めることができる。例えば、第9図に示
すようにグリップを5個取り付けた場合、各グリップの
移動量Sは次の通りとなる。
In the above structure, in order to provide a grip moving mechanism for completely evenly distributing the tensile stress amount, the grip moving amount can be calculated by the following formula. For example, when five grips are attached as shown in FIG. 9, the movement amount S of each grip is as follows.

S1=0 S2={(1/n)・P・B/A・E}−S1 S3={(2/n)・P・2B/A・E}−S2 S4={(3/n)・P・3B/A・E}−S3 S5={(4/n)・P・4B/A・E}−S4 但しS:グリップの移動量(mm) n:グリップの個数 P:引張荷重(ton/本) B:グリップの間隔(m) A:引張鋼材の断面積(cm2) E:引張鋼材のヤング率 従って、上記の式により算出された各グリップの移動量
に見合う空間を各グリップの応力側に設定することによ
って、第10図に示すように、引張材に作用する引張荷重
を各グリップに均等に分散させることができる。
S 1 = 0 S 2 = {(1 / n) ・ P ・ B / A ・ E} -S 1 S 3 = {(2 / n) ・ P ・ 2B / A ・ E} -S 2 S 4 = { (3 / n) ・ P ・ 3B / A ・ E} -S 3 S 5 = {(4 / n) ・ P ・ 4B / A ・ E} -S 4 However, S: Grip movement amount (mm) n: Number of grips P: Tensile load (ton / piece) B: Grip spacing (m) A: Cross-sectional area of tensile steel (cm 2 ) E: Young's modulus of tensile steel Therefore, for each grip calculated by the above formula By setting a space commensurate with the amount of movement on the stress side of each grip, the tensile load acting on the tensile member can be evenly distributed to each grip, as shown in FIG.

(作用) 引張材の定着材となる部分に、グリップを取り付け、引
張材を加えると、グリップの軸方向断面に引張応力が働
くことにより、引張力が定着体に伝達される。数個のグ
リップの引張側先端に引張応力に応じて空間を設けるこ
とにより、引張応力を分散して定着体に段階的に伝達す
ることになる。引張応力を加えると、被覆した引張材の
固定端部を基点にして、伸びは、アンカー自由長部(引
張応力側)に近付くにつれ累積されて大きくなるので、
グリップの移動量が大きくなる。そのままにしておく
と、各グリップ間の応力が異なり、定着体に部分的に応
力集中が起る。従って、そのグリップの移動量だけグリ
ップカバーでグリップとの間に空間を設けることによ
り、各グリップの支圧面で均等に応力が定着体に伝達さ
れる。その結果、定着体に局部的に応力集中が起らず
に、定着体全体で引張力を伝えるので、定着体の微細な
ひび割れによる破壊を防止できる。それにより、地下水
等の侵入がなく、引張材の腐食を防止して、アンカーの
信頼性を高めることができる。そして、引張材はアンボ
ンド加工されたものを使用し、グリップはグリップカバ
ーにより被覆されているので、引張材全体が完全に被覆
されていることになり、地下水や有害ガスから半永久的
に保護される。また、グリップとグリップカバーの間と
なる空間には防錆油を充填しグリップを保護する。防錆
油の移動を容易にするためにグリップカバーにスリット
を設けることにより流動性を与える。
(Operation) When a grip is attached to a portion of the tension material that serves as the fixing material and the tension material is added, tensile stress acts on the axial cross section of the grip, so that the tensile force is transmitted to the fixing body. By providing a space according to the tensile stress at the tips of the several grips on the tensile side, the tensile stress is dispersed and transmitted in stages to the fixing member. When tensile stress is applied, the elongation is accumulated and increases as it approaches the anchor free length part (tensile stress side), with the fixed end of the coated tensile material as the base point,
Greater amount of grip movement. If left as it is, the stress between the grips will be different, and the stress will be partially concentrated on the fixing member. Therefore, by providing a space between the grip and the grip by the amount of movement of the grip, the stress is evenly transmitted to the fixing body on the bearing surface of each grip. As a result, since the tensile force is transmitted through the entire fixing body without local stress concentration on the fixing body, it is possible to prevent the fixing body from being broken due to minute cracks. As a result, there is no intrusion of groundwater or the like, corrosion of the tensile member can be prevented, and the reliability of the anchor can be improved. The tensile material is unbonded, and the grip is covered by the grip cover, so the entire tensile material is completely covered and is semipermanently protected from groundwater and harmful gases. . In addition, the space between the grip and the grip cover is filled with rust preventive oil to protect the grip. The grip cover is provided with slits to facilitate the movement of the rust preventive oil, thereby providing fluidity.

(実施例) 以下、本考案の実施例を図面に基づいて詳細に説明す
る。
Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

第1図は本考案によるアンカー引張材によるアンカー造
成実施例を示す。図中1は、アンボンド加工されたPC鋼
線やPCより鋼線からなる引張鋼材であり、2は該引張鋼
材の定着部Aとなる部分にほぼ等間隔(又は不等間隔)
に鋼製のスリーブをダイス内を通して圧着したグリップ
である。3はアンボンド加工された引張鋼材の伸びによ
り生じる個々のグリップの移動量に合せたグリップカバ
ーであり、ポリエチレンはポリプロピレン等で形成され
たもので、グリップの移動空間を調整するものである。
4はグリップの移動調整のためのグリップ移動空間であ
って、該空間にはグリップ及び引張鋼材の腐食を防止す
る防錆油が充填される。グリップカバーで形成される空
間4は、最端部のグリップ部には設けられてなく、2個
目のグリップ部からその移動量に合せて設けられる。
FIG. 1 shows an example of anchor construction using an anchor tension material according to the present invention. In the figure, 1 is a tensile steel material composed of unbonded PC steel wire or PC twisted steel wire, and 2 is a substantially equal interval (or unequal interval) in the portion which becomes the anchoring portion A of the tensile steel material.
It is a grip made by pressing a steel sleeve through the die. Reference numeral 3 is a grip cover adapted to the amount of movement of each grip caused by the elongation of the unbonded tensile steel material, and polyethylene is formed of polypropylene or the like and adjusts the movement space of the grip.
Reference numeral 4 denotes a grip moving space for adjusting the movement of the grip, and the space is filled with rust preventive oil for preventing corrosion of the grip and the tensile steel material. The space 4 formed by the grip cover is not provided in the grip portion at the endmost portion, but is provided according to the amount of movement from the second grip portion.

グリップ部の拡大図が第5図に示されている。該実施例
におけるグリップカバー3は、グリップ移動空間4の調
節設定が容易にでき、且つグリップ2を完全に被って止
水効果を高めるために、グリップを被って互いに嵌合す
る第1部材5と第2部材6の二つの部材により構成され
ている。これらグリップカバー部材5、6は、一端が被
覆材(シース)10で被覆されたPC引張鋼材1の外周に嵌
合してバンド11で固定され、他端が開口してグリップ外
周を覆って互いに嵌合し、その嵌合深さをグリップの移
動量に見合って調節することによって、グリップ2の応
力側端部と第1部材5との間にグリップ移動空間を形成
するように固定されている。また、第1グリップカバー
の支圧面寄りに前記グリップ移動空間に防錆油を充填す
るための充填孔8が形成され、またグリップを覆う円筒
壁の内面に防錆油の動きを容易にするために、スリット
9が形成されている。
An enlarged view of the grip portion is shown in FIG. The grip cover 3 in this embodiment allows the adjustment and setting of the grip moving space 4 to be easily performed, and in order to cover the grip 2 completely and enhance the water blocking effect, the grip cover 3 and the first member 5 are fitted to each other. The second member 6 is composed of two members. These grip cover members 5 and 6 are fitted to the outer periphery of the PC tensile steel material 1 having one end coated with a coating material (sheath) 10 and fixed by a band 11, and the other ends are opened to cover the outer periphery of the grip and are mutually covered. It is fixed so as to form a grip moving space between the stress side end of the grip 2 and the first member 5 by fitting and adjusting the fitting depth according to the amount of movement of the grip. . In addition, a filling hole 8 for filling the grip moving space with rust preventive oil is formed near the bearing surface of the first grip cover, and the inner surface of the cylindrical wall covering the grip facilitates movement of the rust preventive oil. The slit 9 is formed in the.

なお、上記実施例のグリップカバーは、第1部材に第2
部材を外嵌合しているが、必ずしもそれに限らず、第2
部材に第1部材を外嵌合するように構成しても良い。ま
た、グリップカバーは、上記のように二つの部材で構成
することが望ましいが、必ずしも二つのグリップカバー
部材に分離せずに一体に構成することも可能である。ま
た、二の部材で構成する場合、その材質は同一であって
も良いし、また別々、例えば一方をポリエチレンで形成
し、他方をポリプロピレンで形成しても良い。
The grip cover of the above-described embodiment has the second member on the second member.
The members are fitted to each other, but not limited thereto,
The first member may be externally fitted to the member. Further, the grip cover is preferably composed of two members as described above, but it is also possible to form the grip cover integrally with the two grip cover members without separating them. When the two members are used, they may be made of the same material, or may be separately formed, for example, one of them may be made of polyethylene and the other of which may be made of polypropylene.

以上のようにして構成された引張鋼材を、複数本(3本
以上)をスペーサー15によって均等に配列して束ねて、
テンドン16を得る。このようにして得られたテンドン16
をアンカーホール17に挿入して、定着部となる個所Aに
セメントペーストを充填して硬化させ、定着体18を形成
している。そして、従来のアンカー工法と同様にアンカ
ー引張鋼材をジャッキで引っ張り、引き伸ばされた状態
のまま固定してアンカーとしての機能を発揮させる。
A plurality (three or more) of the tensile steel members configured as described above are evenly arranged and bundled by the spacer 15,
Get Tendon 16. Tendon 16 obtained in this way
Is inserted into the anchor hole 17 and the cement paste is filled in the portion A which becomes the fixing portion and hardened to form the fixing body 18. Then, similarly to the conventional anchor construction method, the anchor tensile steel material is pulled by a jack and fixed in the stretched state to exert the function as an anchor.

以上のような構造のアンカー引張材の硬化を確認するた
めに、PC鋼より線(φ=12.7mm)に5個のグリップn1
n5を等間隔に固着し、各グリップとグリップカバーの間
に設けられた空間S1〜S5を図示のように設定して、第11
図に示す引張鋼材の供試体を製作した。該供試体で10回
程度実験を行なった結果、第12図のグラフに示すように
引張荷重が各グリップに均等に分散され、所期の目的を
十分達成していることが確認された。そして、実験終了
後供試体を割って中の状態を確認した所、グリップ及び
グリップカバーの破損は一度も確認されなかった。な
お、第12図において、縦軸は各グリップ間のストランド
の引張荷重(張力)を表し、横軸はストランドの全荷重
を表している。
In order to confirm the hardening of the anchor tension material with the above structure, 5 grips n 1 ~ on the PC steel stranded wire (φ = 12.7 mm)
n 5 are fixed at equal intervals, and the spaces S 1 to S 5 provided between the grips and the grip cover are set as shown in the drawing, and
Specimens of tensile steel shown in the figure were manufactured. As a result of conducting the experiment about 10 times with the test piece, it was confirmed that the tensile load was evenly distributed to each grip as shown in the graph of FIG. 12, and the intended purpose was sufficiently achieved. After the end of the experiment, when the test piece was broken and the inner state was confirmed, no damage to the grip and the grip cover was confirmed. In FIG. 12, the vertical axis represents the tensile load (tension) of the strand between the grips, and the horizontal axis represents the total load of the strand.

なお、本考案は上記実施例に限るものでなく、種々の態
様が採用でき、例えば引張鋼材としてPC鋼線やPC鋼棒に
限らず、炭素繊維ロープ等も採用できる。
The present invention is not limited to the above-mentioned embodiment, and various modes can be adopted. For example, the tensile steel material is not limited to PC steel wire or PC steel rod, but carbon fiber rope or the like can be adopted.

(効果) 本考案は、以上のような構成からなり、次のような優れ
た効果を奏するものである。
(Effects) The present invention is configured as described above and has the following excellent effects.

引張材にグリップを複数個取り付けたことにより、個々
のグリップ部において引張り力を均等に分散して定着体
に伝達することができるので、弛い地盤においても高荷
重のアンカーの伝達に耐えることができる。
By attaching multiple grips to the tension material, the tensile force can be evenly distributed and transmitted to the fixing body at each grip part, so that it is possible to withstand the transmission of high-load anchors even on loose ground. it can.

グリップ部にその移動量に応じて空間量を変えた空間を
設けることで、定着体に伝達する引張応力を深部側のグ
リップより順次均一に分散することができる。その結
果、定着体に応力集中がなくなり、微細なひび割れの発
生が防止されて定着体の破損がなくなる。それにより、
引張材が地下水や有害ガスの作用により腐食することが
防止される。一方、1個のグリップにかかる引張り力は
そのグリップ数分の1になるので、摩擦応力度が低い値
でも十分な定着力を可能とすることができる。
By providing the grip portion with a space whose amount of space is changed according to the amount of movement of the grip portion, the tensile stress transmitted to the fixing member can be dispersed more evenly from the grip on the deep side. As a result, the concentration of stress on the fixing body is eliminated, fine cracks are prevented from occurring, and the fixing body is not damaged. Thereby,
The tensile material is prevented from being corroded by the action of groundwater or harmful gas. On the other hand, since the pulling force applied to one grip is a fraction of the number of grips, a sufficient fixing force can be achieved even if the frictional stress is low.

また、請求項2の構成によれば、グリップ部が完全に被
覆されるので、引張材全体が地下水や有害ガスから半永
久的に保護することができ、アンカーとして信頼性を飛
躍的に向上させることができ、またグリップ移動空間の
調節が容易であると共に組立が容易である。
Further, according to the configuration of claim 2, since the grip portion is completely covered, the entire tensile member can be semipermanently protected from groundwater and harmful gas, and the reliability as an anchor is dramatically improved. In addition, the grip movement space can be easily adjusted and the assembly is easy.

更に、請求項3の構成によれば、グリップを防錆油で保
護することができ、そしてグリップカバーのスリットに
より防錆油に流動性を与えることができるので、グリッ
プの移動に支障を与えることがない。
Further, according to the structure of claim 3, the grip can be protected by the rust preventive oil, and the slits of the grip cover can impart fluidity to the rust preventive oil, which hinders the movement of the grip. There is no.

【図面の簡単な説明】[Brief description of drawings]

図面は本考案のアンカー引張材の実施例を示し、第1図
はアンカーを造成した状態の側面図、第2図は第1図の
A−A断面図、第3図はB−B断面図、第4図はC−C
断面図、第5図は引張材のグリップ部の組立詳細断面
図、第6図は第5図のD−D断面図、第7図はE−E断
面図、第8図はF−F断面図、第9図はテンドン加工に
よるグリップ部の移動空間量を表す模式図、第10図は応
力分散図、第11図は供試体の寸法を表す模式図、第12図
は該供試体による試験測定結果に基づく応力分散図であ
る。 1:引張材、2:グリップ、3:グリップカバー、4:グリップ
移動空間、5:第1部材、6:第2部材、8:防錆油充填孔、
9:スリット、10:被覆材、11:バンド、15:スペーサ、16:
テンドン、17:アンカーホール、18:定着体
The drawing shows an embodiment of the anchor tension member of the present invention. Fig. 1 is a side view of the anchor in a state of being formed, Fig. 2 is a sectional view taken along the line AA of Fig. 1, and Fig. 3 is a sectional view taken along the line BB. , Fig. 4 is CC
Sectional view, FIG. 5 is an assembly detailed sectional view of the grip portion of the tension member, FIG. 6 is a sectional view taken along the line DD of FIG. 5, FIG. 7 is a sectional view taken along the line EE, and FIG. 8 is a sectional view taken along the line F-F. Figure, Figure 9 is a schematic diagram showing the amount of moving space of the grip part by tendon processing, Fig. 10 is a stress dispersion diagram, Fig. 11 is a schematic diagram showing the dimensions of the specimen, and Fig. 12 is a test by the specimen. It is a stress distribution figure based on a measurement result. 1: Tensile material, 2: Grip, 3: Grip cover, 4: Grip moving space, 5: First member, 6: Second member, 8: Anti-rust oil filling hole,
9: slit, 10: coating material, 11: band, 15: spacer, 16:
Tendon, 17: Anchor hole, 18: Fixed body

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭51−79920(JP,A) 特開 昭57−127100(JP,A) 特開 昭61−242221(JP,A) 特開 平2−70821(JP,A) ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-51-79920 (JP, A) JP-A-57-127100 (JP, A) JP-A-61-242221 (JP, A) JP-A-2- 70821 (JP, A)

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】引張材に適宜間隔で固着された複数個のグ
リップの外側に、引張作用時の引張材の延びによる前記
グリップの移動量に合わせたグリップ移動空間を前記グ
リップの応力側に確保するように、一方の端部が引張材
に固定され他端部が開口された円筒状の第1部材と、該
第1部材の開口側に嵌合する開口を有し他端部が前記引
張材に固定される円筒状の第2部材とからなるグリップ
カバーを取り付け、引張材の引っ張りにより前記グリッ
プが前記グリップカバー内を移動してグリップ端面が前
記グリップカバーの支圧面に圧接して該グリップカバー
に荷重を付加することにより、引張応力を複数個のグリ
ップに当量に分散させるようにしたことを特徴とするア
ンカー引張材。
1. A grip moving space matching the amount of movement of the grip due to extension of the tension member during tensioning is provided on the outside of a plurality of grips fixed to the tension member at appropriate intervals on the stress side of the grip. As described above, one end is fixed to the tension member and the other end is opened, and the cylindrical first member has an opening fitted to the opening side of the first member, and the other end is the pulling member. A grip cover made up of a cylindrical second member fixed to the material is attached, the grip moves inside the grip cover by pulling a tension member, and the grip end surface is brought into pressure contact with the bearing surface of the grip cover. An anchor tension member characterized in that tensile stress is distributed to a plurality of grips in an equivalent amount by applying a load to the cover.
【請求項2】グリップ移動空間に防錆油が充填され、前
記グリップカバーには防錆油が移動するスリットが形成
されている請求項1記載のアンカー引張材。
2. The anchor tension member according to claim 1, wherein the grip moving space is filled with rust preventive oil, and a slit through which the rust preventive oil moves is formed in the grip cover.
JP1990060166U 1990-02-15 1990-06-08 Anchor tension material Expired - Lifetime JPH0720176Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990060166U JPH0720176Y2 (en) 1990-02-15 1990-06-08 Anchor tension material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP1310390 1990-02-15
JP2-13103 1990-02-15
JP1990060166U JPH0720176Y2 (en) 1990-02-15 1990-06-08 Anchor tension material

Publications (2)

Publication Number Publication Date
JPH03125834U JPH03125834U (en) 1991-12-19
JPH0720176Y2 true JPH0720176Y2 (en) 1995-05-15

Family

ID=31889816

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990060166U Expired - Lifetime JPH0720176Y2 (en) 1990-02-15 1990-06-08 Anchor tension material

Country Status (1)

Country Link
JP (1) JPH0720176Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5124218B2 (en) * 2007-09-25 2013-01-23 株式会社大林組 Natural ground reinforced soil structure and natural ground reinforced earth method
JP6387038B2 (en) * 2016-03-30 2018-09-05 株式会社斜面対策研究所 Anchor support and ground anchor method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS534326B2 (en) * 1975-01-09 1978-02-16
JPS57127100A (en) * 1981-01-28 1982-08-07 Tokyu Kensetsu Kk Equalizing of shaft force such as lock bolt and control of deforming capacity

Also Published As

Publication number Publication date
JPH03125834U (en) 1991-12-19

Similar Documents

Publication Publication Date Title
DE60005906T2 (en) ROPE FOR CONSTRUCTION, SHEATH SECTION THEREFOR AND METHOD FOR INSTALLING IT
US6634147B2 (en) Process for the installation and tensioning of a brace having a false bearing, in particular a stay cable for a cable-stayed bridge and anchoring device with which to carry out the process
GB2109444A (en) A tension member and a method of assembling and installing the tension member in bridges
JPH0263041B2 (en)
KR20010023042A (en) Method and device for fixing a load-transmitting element on a cable, and cable-suspended bridge comprising said devices
US7234280B2 (en) Device for anchoring prestressing reinforcements
JPH0720176Y2 (en) Anchor tension material
DE19882104C1 (en) Anchor system for tensioners and anchors in prestressed concrete construction
JPH0270821A (en) Anchor tension member
JPS61117324A (en) Earth anchor
JP3330107B2 (en) Structure of anchoring part of PC steel and method of injecting buffer material in anchoring part of PC steel
KR101861142B1 (en) Pullout Behavior Analysis for Frictional Combined Ground Anchor
JP2924930B2 (en) Anchored end of PC strand
KR100454636B1 (en) Compression clip of pc steel material
JP2749292B2 (en) Fixing tool
JPH10231522A (en) Slope stabilizing construction method
GB2157339A (en) Cable anchorages
JPH0756345Y2 (en) Grout injectable ground anchor cable
RU1795195C (en) Clamp for securing end of multistrand rope
JP2894223B2 (en) Adhesion transfer method ground anchor
JPH0472009B2 (en)
JPH10121472A (en) Ground anchor tension member, ground anchor tension member unit, and ground anchor construction method using them
JP2562072Y2 (en) Anchoring anchor
JPH0714423Y2 (en) Anchor bond sheath
JPH0881954A (en) Anchor method

Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

EXPY Cancellation because of completion of term