JPH0533557Y2 - - Google Patents
Info
- Publication number
- JPH0533557Y2 JPH0533557Y2 JP1986100830U JP10083086U JPH0533557Y2 JP H0533557 Y2 JPH0533557 Y2 JP H0533557Y2 JP 1986100830 U JP1986100830 U JP 1986100830U JP 10083086 U JP10083086 U JP 10083086U JP H0533557 Y2 JPH0533557 Y2 JP H0533557Y2
- Authority
- JP
- Japan
- Prior art keywords
- tensile material
- anchor head
- unbonded
- anchor
- cap
- 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
Links
- 239000000463 material Substances 0.000 claims description 44
- 239000000945 filler Substances 0.000 claims description 17
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 238000004873 anchoring Methods 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、アンボンド引張材を使用して永久ア
ンカーを構築する永久アンカー用アンボンド引張
材の端部定着装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an end anchoring device for an unbonded tensile material for a permanent anchor in which the unbonded tensile material is used to construct a permanent anchor.
（従来の技術）
従来、高層ビル等の地上構築物用地中杭とし
て、その構築物の重量を支えるのみならず、上向
きの力に対しても対向し得るように永久アンカー
が使用されている。この永久アンカー用の引張材
として、近年ストランドの外周にグリース等の潤
滑剤層を介在させて合成樹脂筒を被せたアンボン
ド引張材が使用されるに到つた。(Prior Art) Conventionally, permanent anchors have been used as underground piles for above-ground structures such as high-rise buildings, so that they can not only support the weight of the structure but also resist upward forces. In recent years, unbonded tensile materials have been used as tensile materials for permanent anchors, in which a synthetic resin tube is covered with a layer of lubricant such as grease on the outer periphery of a strand.
このような引張材を使用した永久アンカーは第
２図、第３図に示すように地中の硬質支持層１に
到るアンカー孔２を掘孔し、そのアンカー孔２の
奥部に引張材３の下端を定着体４に固着させ、コ
ンクリート５によつて埋設して定着させ、その引
張材３の上端を地上構造物６の地中フーチング７
に支持させたアンカーヘツド８の定着孔８ａ内に
挿通し、引張材３を引張して所定の緊張力を与え
た後、定着孔８ａ内に引張材３を挟持する引張材
定着用楔９を挿入し、引張操作を解除することに
よつて、引張材３の戻り力によつて引張材３を楔
９によつてアンカーヘツド８に定着させ、その後
アンカーヘツド８全体を地中フーチング７内に埋
め込んでいる。 For permanent anchors using such tensile material, as shown in Figures 2 and 3, an anchor hole 2 is dug that reaches the hard support layer 1 underground, and the tensile material is inserted deep into the anchor hole 2. The lower end of the tensile member 3 is fixed to the anchoring body 4, buried and fixed with concrete 5, and the upper end of the tensile member 3 is attached to the underground footing 7 of the above-ground structure 6.
After inserting the tensile material 3 into the fixing hole 8a of the anchor head 8 supported by the fixing hole 8a and applying a predetermined tension force by pulling the tensile material 3, insert the tensile material fixing wedge 9 that holds the tensile material 3 in the fixing hole 8a. By inserting and releasing the tensioning operation, the tensioning member 3 is anchored to the anchor head 8 by the wedge 9 by the return force of the tensioning member 3, and then the entire anchor head 8 is inserted into the underground footing 7. Embedded.
（考案が解決しようとする問題点）
このような従来の永久アンカー用アンボンド引
張材の端部定着装置では、アンカーヘツド８の外
側がコンクリートで覆われるのみであるため、地
震等による圧縮方向の力によつて引張材が一時的
に圧縮方向に作用された場合に楔が外れることが
考えられ、一旦楔が外れると、引張材にアンボン
ドストランドを使用しているため、引張力が解除
され、再緊張が不可能な状態に陥るという問題が
あつた。(Problems to be solved by the invention) In such a conventional end fixing device for unbonded tension members for permanent anchors, only the outside of the anchor head 8 is covered with concrete, so it is difficult to avoid compressive forces caused by earthquakes, etc. It is thought that the wedge may come off when the tensile material is temporarily acted in the compression direction due to The problem was that the tension led to an impossible situation.
本考案はこのような従来の問題にかんがみ緊張
定着したアンボンド引張材に圧縮力が加わつたと
しても定着用楔がアンカーヘツドから外れたり、
緊張が解かれたりすることのない永久アンカー用
アンボンド引張材の端部定着装置の提供を目的と
したものである。 In consideration of these conventional problems, the present invention prevents the fixing wedge from coming off the anchor head even if compressive force is applied to the unbonded tensile material that has been tension-fixed.
The object of the present invention is to provide an end fixing device for an unbonded tension member for a permanent anchor that does not loosen.
（問題点を解決するための手段）
上述の如き従来の問題を解決し、所期の目的を
達成するための本考案の要旨とするところは地中
に掘孔したアンカー孔内に下端側を定着させたア
ンボンド引張材の上端側を、支圧体に支持させた
短円柱状のアンカーヘツドにおける、上側方向に
いくにしたがつて徐々に拡径された引張材定着孔
に挿通させ、該引張材定着孔内に前記アンボンド
引張材を挟持する引張材定着用楔を挿入して前記
アンボンド引張材を定着させてなる永久アンカー
用アンボンド引張材の定着装置において、前記ア
ンカーヘツドの外周面に雄ねじを備え、該雄ねじ
に前記アンカーヘツドの外方端面側を覆うキヤツ
プを螺合させ、該キヤツプは頂部に栓で閉塞した
充填剤注入孔を備え、下端外周に突設した鍔片下
側に液密性を保持するパツキンを備え、前記充填
剤注入孔からキヤツプ内に硬化性充填剤を充填し
て前記引張材定着用楔をアンカーヘツドに対して
一体化させたことを特徴としてなる永久アンカー
用アンボンド引張材の端部定着装置に存する。(Means for Solving the Problems) The gist of the present invention in order to solve the conventional problems as described above and achieve the intended purpose is to insert the lower end into the anchor hole dug underground. The upper end side of the fixed unbonded tensile material is inserted into a tensile material fixing hole whose diameter gradually increases upward in a short cylindrical anchor head supported by a bearing body, and the tensile material is In a fixing device for an unbonded tensile material for a permanent anchor, which fixes the unbonded tensile material by inserting a tensile material fixing wedge that clamps the unbonded tensile material into a material fixing hole, a male thread is provided on the outer peripheral surface of the anchor head. A cap covering the outer end surface side of the anchor head is screwed onto the male thread, and the cap has a filler injection hole closed with a plug at the top and a liquid-tight seal on the lower side of the flange protruding from the outer periphery of the lower end. An unbond for a permanent anchor, characterized in that the wedge for fixing the tensile material is integrated with the anchor head by filling a curable filler into the cap from the filler injection hole. It consists in an end fixing device for tensile material.
（作用）
この端部定着装置は、アンカーヘツドの外側端
面がキヤツプにて覆われ、その内部に硬化性充填
剤を充填しているため、アンボンド引張材に圧縮
方向の力が作用しても引張材を定着している楔が
抜け出ない。(Function) In this end fixing device, the outer end surface of the anchor head is covered with a cap and the inside is filled with a hardening filler, so even if a force in the compressive direction is applied to the unbonded tensile material, the The wedge that holds the material in place will not come out.
（実施例）
次に本考案の実施の一例を第１図について説明
する。なお前述した従来例と同じ部分については
同一符号を付し、その説明を省略する。(Example) Next, an example of implementing the present invention will be described with reference to FIG. Note that the same parts as in the conventional example described above are denoted by the same reference numerals, and the explanation thereof will be omitted.
この端部定着構造は、前述した従来例と同様に
してアンカー孔２内の奥部にアンボンド引張材３
の下端を定着させた引張材３を支圧体である地上
構築物のフーチング７に支持させて定着させるよ
うにしており、前述した従来例のアンカーヘツド
８の代りに、アンカーヘツド１１を使用してい
る。 This end fixing structure has an unbonded tensile material 3 attached to the inner part of the anchor hole 2 in the same way as the conventional example described above.
The tensile member 3 with its lower end fixed is supported and fixed on the footing 7 of the above-ground structure which is a bearing body, and an anchor head 11 is used instead of the anchor head 8 of the conventional example described above. There is.
このアンカーヘツド１１は、短円柱状をなし、
その外周には雄ねじ１２が刻設され中央部分には
表裏に貫通させて引張材定着孔１３，１３……が
形成されている。この各引張材定着孔１３は外方
端面側が拡開されたテーパ状部１３ａとなつてい
る。このテーパ状部１３ａ内に引張材定着用楔１
４を挿入し引張力を付与した引張材３をこの楔１
４をもつて挟持させて定着している。 This anchor head 11 has a short cylindrical shape,
A male thread 12 is carved on the outer periphery, and tensile material fixing holes 13, 13, . Each tensile material fixing hole 13 has a tapered portion 13a widened on the outer end surface side. A tension material fixing wedge 1 is provided within this tapered portion 13a.
4 is inserted and tension member 3 is applied to this wedge 1.
It is fixed by holding it with 4.
このようにして引張材３を楔定着させたアンカ
ーヘツド１１の外方端面側を覆つてキヤツプ１５
が被せられている。 The cap 15 covers the outer end surface of the anchor head 11 to which the tension member 3 is wedge-fixed in this manner.
is covered.
このキヤツプ１５は鋼材をもつて成形され、開
口に端部内面に雌ねじ１５ａが刻設され、これを
アンカーヘツド１１の雌ねじ１２に螺合させてい
る。なお図中１０は液密性を保持させるパツキン
である。またキヤツプ１５はその頂部に充填剤注
入孔１７が形成され、栓１８により閉鎖してい
る。この充填剤注入孔１７より、内部に硬化性の
充填剤１９を充填し、その硬化によつて、楔９、
アンカーヘツド１１及びキヤツプ１５が互いに一
体化された剛構造体となしている。硬化性充填剤
１９としては硬化性硬質合成樹脂剤、セメント系
グラウト剤等各種のものが使用できる。 This cap 15 is made of steel, and has a female thread 15a carved on the inner surface of the end of the opening, which is screwed into the female thread 12 of the anchor head 11. Note that 10 in the figure is a gasket that maintains liquid tightness. A filler injection hole 17 is formed at the top of the cap 15, and the filler injection hole 17 is closed by a stopper 18. A curable filler 19 is filled inside the filler injection hole 17, and as it hardens, the wedge 9,
Anchor head 11 and cap 15 are integrated into a rigid structure. As the hardenable filler 19, various kinds of hardenable synthetic resin agents, cement grout agents, etc. can be used.
（考案の効果）
本考案の永久アンカー用アンボンド引張材の端
部定着装置は上述の如く構成され、充填剤によつ
て、アンカーヘツド、引張材定着楔及びキヤツプ
が互いに一体化されるため、緊張後のアンボンド
引張材が地震等の原因によつて圧縮方向に作用さ
れ、定着楔に抜け出し方向の力が加わつても定着
楔のみが抜け出ることなく、定着状態が維持され
ることとなり、緊張が解かれ再緊張不能になるこ
とが完全に防止されることとなつたものである。
また、アンカーヘツドの外周面に雄ねじを備えた
ことにより、該アンカーヘツドにアンカーヘツド
の外方端面側を覆うキヤツプを確実かつ容易に螺
合させることができるので作業性が良く、該キヤ
ツプが容易に外れたり、緩むことがない。またア
ンカーヘツドの外周面の雄ねじに緊張ジヤツキの
カプラーを螺合することにより、前記雄ねじをア
ンボンド引張材の再緊張の支点とすることができ
るので、引張材用定着楔を介してアンカーヘツド
に定着したアンボンド引張材を全て一度に再緊張
することができる。さらに、キヤツプの下端外周
における鍔片下側に設けたパツキンによりキヤツ
プ内の液密性を保持できるので、該キヤツプ内に
充填した硬化性充填剤が外側にもれることがな
い。(Effect of the invention) The end fixing device of the unbonded tensile material for a permanent anchor of the present invention is constructed as described above, and the anchor head, the tension material fixing wedge, and the cap are integrated with each other by the filler. Even if the subsequent unbonded tensile material is acted upon in the compression direction due to an earthquake or other cause, and a force is applied to the anchoring wedge in the direction of pulling out, only the anchoring wedge will not come out and the anchored state will be maintained, and the tension will be released. This completely prevented him from becoming unable to re-tension.
In addition, by providing a male thread on the outer circumferential surface of the anchor head, the cap that covers the outer end surface of the anchor head can be securely and easily screwed onto the anchor head, resulting in good workability and easy installation of the cap. It will not come off or come loose. In addition, by screwing the coupler of the tensioning jack onto the male thread on the outer peripheral surface of the anchor head, the male thread can be used as a fulcrum for re-tensioning the unbonded tensile material, so it is fixed to the anchor head via the tension material fixing wedge. All unbonded tension members can be retensioned at once. Further, since the seal provided below the flange on the outer periphery of the lower end of the cap maintains liquid tightness within the cap, the curable filler filled within the cap does not leak to the outside.
第１図は本考案の実施の一例を示す縦断面図、
第２図は従来の永久アンカーの一例を示す縦断面
図、第３図は同端部定着装置部分の拡大断面図で
ある。
２……アンカー孔、３……アンカーボンド緊張
材、７……フーチング、１１……アンカーヘツ
ド、１２……雄ねじ、１３……引張材定着孔、１
４……引張材定着楔、１５……キヤツプ、１７…
…充填剤注入孔、１９……充填剤。
FIG. 1 is a longitudinal sectional view showing an example of implementation of the present invention;
FIG. 2 is a longitudinal cross-sectional view showing an example of a conventional permanent anchor, and FIG. 3 is an enlarged cross-sectional view of the fixing device at the same end. 2... Anchor hole, 3... Anchor bond tension material, 7... Footing, 11... Anchor head, 12... Male thread, 13... Tensile material fixing hole, 1
4... Tensile material fixing wedge, 15... Cap, 17...
...filler injection hole, 19...filler.
Claims (1)
せたアンボンド引張材の上端側を、支圧体に支持
させた短円柱状のアンカーヘツドにおける、上側
方向にいくにしたがつて徐々に拡径された引張材
定着孔に挿通させ、該引張材定着孔内に前記アン
ボンド引張材を挟持する引張材定着用楔を挿入し
て前記アンボンド引張材を定着させてなる永久ア
ンカー用アンボンド引張材の定着装置において、
前記アンカーヘツドの外周面に雄ねじを備え、該
雄ねじに前記アンカーヘツドの外方端面側を覆う
キヤツプを螺合させ、該キヤツプは頂部に栓で閉
塞した充填剤注入孔を備えると共に、下端外周に
突設した鍔片下側には液密性を保持するパツキン
を備え、前記充填剤注入孔からキヤツプ内に硬化
性充填剤を充填して前記引張材定着用楔をアンカ
ーヘツドに対して一体化させたことを特徴として
なる永久アンカー用アンボンド引張材の端部定着
装置。 The upper end of the unbonded tensile material, whose lower end is fixed in the anchor hole drilled in the ground, is gradually expanded upward in the short cylindrical anchor head supported by the bearing pressure body. An unbonded tensile material for a permanent anchor, which is made by inserting a tensile material fixing wedge into which the unbonded tensile material is fixed by inserting the tensile material fixing wedge into the tensile material fixing hole having a diameter. In the fixing device,
A male thread is provided on the outer circumferential surface of the anchor head, and a cap that covers the outer end surface of the anchor head is screwed onto the male thread, and the cap is provided with a filler injection hole closed with a plug at the top and has a filler injection hole on the outer periphery of the lower end. A packing that maintains liquid tightness is provided on the lower side of the protruding flange piece, and a curable filler is filled into the cap through the filler injection hole to integrate the tensile material fixing wedge to the anchor head. An end fixing device for unbonded tensile material for permanent anchors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986100830U JPH0533557Y2 (en) | 1986-07-02 | 1986-07-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986100830U JPH0533557Y2 (en) | 1986-07-02 | 1986-07-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS639339U JPS639339U (en) | 1988-01-21 |
| JPH0533557Y2 true JPH0533557Y2 (en) | 1993-08-26 |
Family
ID=30971012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986100830U Expired - Lifetime JPH0533557Y2 (en) | 1986-07-02 | 1986-07-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0533557Y2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63188072A (en) * | 1987-01-30 | 1988-08-03 | Hitachi Ltd | Platen roller for thermal transfer printer and preparation thereof |
| JPH0723460Y2 (en) * | 1987-02-09 | 1995-05-31 | 住友電気工業株式会社 | Prestressed concrete fixing device with protective cover |
| JPH1143941A (en) * | 1997-07-29 | 1999-02-16 | Ohbayashi Corp | Anchor fixture part structure |
| JPH11210227A (en) * | 1998-01-21 | 1999-08-03 | Taisei Corp | End structure of pc steel material |
| KR100474167B1 (en) * | 2002-07-18 | 2005-03-15 | 주식회사화인기술단종합건축사사무소 | Ground Stabilization Device and Method of Ground Stabilization Using the Device |
| JP5999792B2 (en) * | 2015-04-22 | 2016-09-28 | 株式会社奥村組 | Construction method of reaction force device |
| JP6807482B1 (en) * | 2020-08-18 | 2021-01-06 | 中日本ハイウェイ・エンジニアリング東京株式会社 | Tendon's head fixation structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5738455U (en) * | 1980-08-12 | 1982-03-01 | ||
| JPS608318B2 (en) * | 1979-12-28 | 1985-03-01 | ハニ−化成株式会社 | Matte electrodeposition coating method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608318U (en) * | 1983-06-27 | 1985-01-21 | 鹿島建設株式会社 | Anchoring part in post tension construction method |
-
1986
- 1986-07-02 JP JP1986100830U patent/JPH0533557Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS608318B2 (en) * | 1979-12-28 | 1985-03-01 | ハニ−化成株式会社 | Matte electrodeposition coating method |
| JPS5738455U (en) * | 1980-08-12 | 1982-03-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS639339U (en) | 1988-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10364569B2 (en) | Guide device for retaining ties in masonry walls | |
| KR100992999B1 (en) | Slope-reinforcement anchor for inducing soil nailing reinforcement effect and methode there of | |
| KR100880690B1 (en) | The anchor method which uses the ground anchor | |
| KR100898907B1 (en) | Fixing device for earth anchor | |
| JPH0533557Y2 (en) | ||
| CA2551712C (en) | Void form for constructing post-tensioned foundation piles | |
| ES2715996T3 (en) | Arrangement for high strength anchoring of a tensioning element that has a tensioning bar in a construction piece as well as a procedure for the production of such an anchor | |
| US1449236A (en) | Method of providing anchorages | |
| JP2004504521A (en) | Joints and structures for joining steel pipe pile heads to concrete foundations | |
| JP4181192B2 (en) | Ground anchor and ground anchor method | |
| JPS622083B2 (en) | ||
| CN214656999U (en) | Sectional type anticorrosion connecting anchor rod | |
| KR200434370Y1 (en) | Permanent anchor which is provided with a fixing frame | |
| JPH0412771B2 (en) | ||
| JPH0718789A (en) | Anchorage structure of head of earth anchor | |
| JPH0724493Y2 (en) | PC steel edge fixing device | |
| JPH047228Y2 (en) | ||
| JPH0437958Y2 (en) | ||
| JPH047229Y2 (en) | ||
| JPH01163316A (en) | Fixing of anchor | |
| JPH0741770Y2 (en) | Tensile material | |
| JPH01127719A (en) | Construction of ground anchor head | |
| JPH084498Y2 (en) | Anti-corrosion equipment for tensile materials | |
| JPH072678Y2 (en) | Permanent ground anchor rustproof structure | |
| JPH0647967Y2 (en) | Bearing plate with water-stop sheath |