JPH084498Y2 - Anti-corrosion equipment for tensile materials - Google Patents
Anti-corrosion equipment for tensile materialsInfo
- Publication number
- JPH084498Y2 JPH084498Y2 JP1990402935U JP40293590U JPH084498Y2 JP H084498 Y2 JPH084498 Y2 JP H084498Y2 JP 1990402935 U JP1990402935 U JP 1990402935U JP 40293590 U JP40293590 U JP 40293590U JP H084498 Y2 JPH084498 Y2 JP H084498Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheath
- waterproof
- tension
- waterproof sheath
- hole
- 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 title description 25
- 238000005260 corrosion Methods 0.000 title description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 13
- 230000003449 preventive effect Effects 0.000 claims description 10
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 239000011440 grout Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000011513 prestressed concrete Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Landscapes
- Bridges Or Land Bridges (AREA)
- Reinforcement Elements For Buildings (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本考案は引張材用防錆具に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rust preventive for tension members.
【０００２】[0002]
【従来の技術】通常、アースアンカー、プレストレスト
コンクリート及び斜張橋等に使用される引張材は、引張
材における端部に錆が発生し易く、その錆の発生を防ぐ
ために引張材の端部に種々の工夫がなされている。2. Description of the Related Art Tensile materials that are usually used for earth anchors, prestressed concrete, cable-stayed bridges, etc., tend to rust at the ends of the tensile members. Various ideas have been made.
【０００３】その中でも、一般的な防錆方法としては、
引張材の端部にインナースリーブを設け、該インナース
リーブとシース材との間にコーキング材を充填して対処
していた。Among them, as a general rust preventive method,
An inner sleeve is provided at the end of the tension material, and a caulking material is filled between the inner sleeve and the sheath material to cope with the problem.
【０００４】[0004]
【考案が解決しようとする課題】しかし、前記の防錆方
法は支圧板の前面側からの防錆作業であり、しかもイン
ナースリブの中央に開設された孔と、引張材との狭い空
間からコーキング材を充填しなければならないため非常
に困難な作業となって、コーキング材を隙間なく確実に
充填することが出来なかった。そのため、インナースリ
ーブ内に雨水や地下水が浸入してしまい、依然として引
張材の端部に錆が発生するという問題があった。[Problems to be Solved by the Invention] However, the above-mentioned rust-prevention method is rust-prevention work from the front side of the bearing plate, and moreover, caulking is performed from the narrow space between the hole formed at the center of the inner rib and the tension member. Since the material had to be filled, it became a very difficult work, and it was not possible to reliably fill the caulking material without gaps. Therefore, there is a problem that rainwater and groundwater enter the inner sleeve, and rust still occurs at the end of the tensile member.
【０００５】本考案は上記のような問題に鑑みてなされ
たものであり、その目的は、引張材端部の防錆作業を容
易に行うと共に、該端部に雨水や地下水等が浸入するの
を確実に防止できる引張材用防錆具を提供することであ
る。The present invention has been made in view of the above problems, and an object thereof is to easily perform rust preventive work on the end portion of a tensile member and to prevent rainwater, groundwater, etc. from entering the end portion. It is an object of the present invention to provide a rust preventive device for a tensile member that can reliably prevent
【０００６】[0006]
【課題を解決するための手段】以上の課題を達成するた
めの、本考案の引張材用防錆具は、引張材の端部に取り
付ける端部シースと、該端部シースに取り外し自在に螺
着され、その前部が支圧板の背面側に密接する防水シー
スとによりなり、該防水シースは弾性を有する蛇腹部を
備え、該蛇腹部の前部に前記支圧板の挿通孔に挿入する
ラップ体を備えたことを特徴とする構成にすることであ
る。[Means for Solving the Problems] To achieve the above objects, a rust preventive device for a tension member of the present invention comprises an end sheath attached to an end of the tension member and a screw detachably attached to the end sheath. And a front portion of the waterproof sheath which is in close contact with the back side of the pressure plate. The waterproof sheath includes an elastic bellows part, and the front part of the bellows is inserted into the through hole of the pressure plate. The structure is characterized by having a body.
【０００７】[0007]
【作用】而して、引張材の端部に、端部シースと、防水
シースとによりなる引張材用防錆具を取り付けたことに
より、防錆作業が容易にできる。また、引張材の端部に
支圧板を取り付けると、前記防水シースが蛇腹部により
縮み、かつその反力で前記防水シースの前部が支圧板の
背面に常時密接されると共に、ラップ体が支圧板の貫通
孔に挿入されるので、支圧板の背面側の防水処理をする
ことができる。The rust preventive work can be facilitated by attaching the rust preventive tool for the tension member, which is composed of the end sheath and the waterproof sheath, to the end of the tension member. Also, when a pressure support plate is attached to the end of the tension member, the waterproof sheath shrinks due to the bellows part, and the reaction force of the waterproof sheath causes the front part of the waterproof sheath to always come into close contact with the back surface of the pressure support plate and the wrap body is supported. Since it is inserted into the through hole of the pressure plate, the back side of the pressure support plate can be waterproofed.
【０００８】[0008]
【実施例】以下、本考案の一実施例を図面に基づいて詳
細に説明する。第１図は本考案の引張材用防錆具をアー
スアンカーの頭部に取り付けた状態の断面図である。ア
ースアンカーＭは地中の掘削孔ｈに充填されたグラウト
材ｇと、頭部に引張材用防錆具Ａを、先端部にパイロッ
トキャップ１０及び定着体１１を夫々備えた引張材ｎと
によりなり、該引張材ｎの頭部に支圧板７を設けて緊張
することにより地盤を支持するものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view showing a state in which the anticorrosive for tension members of the present invention is attached to the head of an earth anchor. The earth anchor M is composed of the grout material g filled in the excavated hole h in the ground, the anticorrosive tool A for the tension material at the head, and the tension material n provided with the pilot cap 10 and the fixing body 11 at the tip end. Therefore, the bearing plate 7 is provided on the head of the tension member n to support the ground by tensioning.
【０００９】前記引張材ｎはＰＣ鋼線６をポリエチレン
製のシース材６ａで被覆し、これらの間に防錆油を充填
して形成し、前記ＰＣ鋼線６の頭部には上部マンション
８を、また先端部には下部マンション９を夫々備え、前
記上部マンション８はナット８ｂにより支圧板７に固定
されると共に、下部マンション９には支圧リング９ａを
介して定着体11を螺着している。The tensile material n is formed by covering the PC steel wire 6 with a sheath material 6a made of polyethylene and filling rust preventive oil between them, and the upper part of the PC steel wire 6 is covered with an upper mansion 8. Further, the lower condominium 9 is provided at the tip end thereof, and the upper condominium 8 is fixed to the bearing plate 7 by the nut 8b, and the fixing body 11 is screwed to the lower condominium 9 via the bearing ring 9a. ing.
【００１０】張材用防錆治具Ａは端部シース１と防水シ
ース２とにより構成され、いずれも合成樹脂で一体形成
されている。端部シース１は筒体状に形成され、前部外
面にネジ部１ａを備えると共に、後部外面には梨地等の
凹凸部１ｂが形成されている。そして端部シース１の後
部が止水チューブ５を介してシース材６ａに連結され、
前部のネジ部１ａには防水シース２が着脱自在に螺着さ
れている。The anticorrosion jig A for upholstery comprises an end sheath 1 and a waterproof sheath 2, both of which are integrally formed of synthetic resin. The end sheath 1 is formed in a tubular shape and has a screw portion 1a on the outer surface of the front portion and an uneven portion 1b such as a satin finish on the outer surface of the rear portion. The rear portion of the end sheath 1 is connected to the sheath material 6a via the water blocking tube 5,
A waterproof sheath 2 is detachably attached to the front threaded portion 1a.
【００１１】防水シース２は支圧板７の背面に当接する
ように端部シース１のネジ部１ａに取り外し自在に螺合
し、防水シース２のネジ部２ａの端縁には外側に拡張し
た拡張部２ｂが形成されて、その螺合を容易にしてい
る。The waterproof sheath 2 is detachably engaged with the threaded portion 1a of the end sheath 1 so as to come into contact with the back surface of the pressure bearing plate 7, and the outer edge of the threaded portion 2a of the waterproof sheath 2 is expanded and expanded. The portion 2b is formed to facilitate the screwing.
【００１２】また、防水シース２には蛇腹部３とラップ
体４とが設けられ、該蛇腹部３は前記支圧板７の貫通孔
７ａよりも大径であり、常時支圧板７側に付勢すること
により防水シース２の前面を支圧板７の背面に密接さ
せ、背面側からの地下水等の浸入を防止している。ま
た、蛇腹部３の前面にはシール効果を高めるために、シ
ール材３ａが塗布されている。Further, the waterproof sheath 2 is provided with a bellows portion 3 and a wrap body 4, and the bellows portion 3 has a larger diameter than the through hole 7a of the pressure support plate 7 and is always biased toward the pressure support plate 7 side. By doing so, the front surface of the waterproof sheath 2 is brought into close contact with the back surface of the pressure support plate 7 to prevent infiltration of groundwater or the like from the back surface side. A sealing material 3a is applied to the front surface of the bellows portion 3 in order to enhance the sealing effect.
【００１３】ラップ体４は蛇腹部３の前面に、前記支圧
板７の貫通孔７ａよりも小径に突出形成され、該貫通孔
７ａに挿入することにより上部マンション８のネジ部８
ａが貫通孔７ａで損傷するのを防止している。The wrap body 4 is formed on the front surface of the bellows portion 3 so as to have a diameter smaller than that of the through hole 7a of the pressure support plate 7, and is inserted into the through hole 7a so that the screw portion 8 of the upper condominium 8 is formed.
a is prevented from being damaged in the through hole 7a.
【００１４】次に、本願考案の引張材用防錆具Ａを取り
付けたアースアンカーＭの定着方法について方法につい
て説明する。先ず初めに、先端にパイロットキャプ１０
及び定着体１１を備えた引張材ｎの頭部に、引張材用防
錆具Ａを取り付ける。これは、端部シース１と引張材ｎ
のシース材６ａとにわたって止水チューブ５を熱圧着し
て連結するものであり、引張材用防錆具Ａを取り付けた
後に、該引張材用防錆具Ａ内にグリース等のコーキング
材ｃを充填して防錆処理をする。Next, a method for fixing the earth anchor M to which the anticorrosive tool A for a tension member of the present invention is attached will be described. First, the pilot cap 10 at the tip
Also, the anticorrosive tool A for tension material is attached to the head of the tension material n provided with the fixing body 11. This is the end sheath 1 and the tension material n.
The water blocking tube 5 is joined by thermocompression bonding to the sheath material 6a of No. 1 and the caulking material c such as grease is placed in the tension member anticorrosion tool A after the tension material anticorrosion tool A is attached. Fill and apply anti-rust treatment.
【００１５】次に、該引張材ｎを引張材用防錆具Ａが地
上へ突出するように掘削孔ｈに挿入すると共に、該掘削
孔ｈにグラウト材ｇを注入する。そして、前記グラウト
材ｇが硬化した後、掘削孔ｈの上端に支圧板７を取り付
ける。この支圧板７は貫通孔７ａに防水シース２のラッ
プ体４を挿入して取り付けることにより、防水シース２
が蛇腹部３で縮み、その反力で前面が支圧板７の背面に
密接されて背面側の止水をする。また、ラップ体４は貫
通孔７ａの周面を覆うため、上部マンション８のネジ部
８ａが保護される。Next, the tensile material n is inserted into the excavation hole h so that the anticorrosive tool A for tensile material projects to the ground, and the grout material g is injected into the excavation hole h. Then, after the grout material g is hardened, the pressure bearing plate 7 is attached to the upper end of the excavation hole h. The pressure support plate 7 is formed by inserting the wrap body 4 of the waterproof sheath 2 into the through hole 7a and attaching the wrap body 4 to the waterproof sheath 2
Contracts at the bellows portion 3 and its reaction force causes the front surface to come into close contact with the rear surface of the pressure support plate 7 to stop the water on the rear surface side. Further, since the wrap body 4 covers the peripheral surface of the through hole 7a, the screw portion 8a of the upper apartment 8 is protected.
【００１６】次に、引張材ｎの頭部を緊張ジャッキ（図
示せず）で緊張した後、上部マンション８にナット８ｂ
を螺合すると共に、該頭部にアンカーキャップ１２を被
覆してアースアンカーＭを定着するものである。尚、こ
の引張材用防錆具Ａは、アースアンカーＭに限らず、プ
レストレストコンクリート、斜張橋等に使用される引張
材にも勿論使用することができる。Next, after tensioning the head of the tension member n with a tension jack (not shown), the nut 8b is attached to the upper apartment 8.
And the anchor cap 12 is covered on the head to fix the ground anchor M. The anti-corrosion tool A for a tensile member is not limited to the ground anchor M, but can be naturally used for a tensile member used for prestressed concrete, cable-stayed bridges and the like.
【００１７】[0017]
【考案の効果】引張材用防錆具を引張材の頭部に取り付
けて、防水シースを支圧板の背面側に密接したことによ
り、従来の支圧板の前面側からの防水に加えて支圧板の
背面側からの防水もできる。[Effect of the Invention] By attaching the anticorrosive tool for the tension member to the head of the tension member and bringing the waterproof sheath into close contact with the back side of the pressure bearing plate, in addition to waterproofing from the front side of the conventional pressure bearing plate, the pressure bearing plate is also provided. You can also waterproof from the back side.
【００１８】防水シースに弾性を備えた蛇腹部を設けた
ことにより、該防水シースの前面が常時支圧板の背面に
密接するので、背面側の止水効果を高めることができ
る。By providing the waterproof sheath with the bellows portion having elasticity, the front surface of the waterproof sheath is always in close contact with the back surface of the pressure bearing plate, so that the water blocking effect on the back surface side can be enhanced.
【００１９】防水シースに弾性を備えた蛇腹部を設けた
ことにより、防水シースが支圧板を取り付ける際に縮む
ので、その長さ調整が容易にできると共に、該蛇腹部で
緊張時における端部シースの共上がりも吸収することが
でき、さらにアンカーされる構造物に大きな変形があっ
ても、テンドンの露出を防止することができる。Since the waterproof sheath is provided with the elastic bellows, the waterproof sheath shrinks when the bearing plate is attached, so that the length of the waterproof sheath can be easily adjusted and the end sheath when the bellows is strained. Can be absorbed, and even if the structure to be anchored is greatly deformed, the tendon can be prevented from being exposed.
【００２０】ラップ体が支圧板の貫通孔に挿入されて、
貫通孔の周面を被覆することにより、緊張時における上
部マンションのネジ部の損傷を防止することができる。The wrap body is inserted into the through hole of the bearing plate,
By covering the peripheral surface of the through hole, it is possible to prevent the screw portion of the upper condominium from being damaged during tension.
【００２１】防水シースが端部シースにネジ部で取り外
し自在に螺着されているため、防水シースを容易に取り
外しすることができる。Since the waterproof sheath is detachably screwed to the end sheath with the screw portion, the waterproof sheath can be easily removed.
【００２２】[0022]
【図１】引張材用防錆具をアースアンカーに取り付けた
状態の断面図である。FIG. 1 is a cross-sectional view showing a state in which a rust preventive for a tension member is attached to a ground anchor.
【図２】アースアンカー頭部の拡大断面図である。FIG. 2 is an enlarged sectional view of a ground anchor head.
【図３】引張材用防錆具の拡大断面図である。FIG. 3 is an enlarged cross-sectional view of an anticorrosive tool for a tensile member.
Ａ 引張材用防錆具 ｎ 引張材 １ 端部シース ２ 防水シース ３ 蛇腹部 ４ ラップ体 ７ 支圧板 ７ａ 貫通孔 A Anti-corrosion tool for tensile material n Tensile material 1 End sheath 2 Waterproof sheath 3 Bellows portion 4 Lap body 7 Pressure plate 7a Through hole
Claims (1)
該端部シースに取り外し自在に螺着され、その前部が支
圧板の背面側に密接する防水シースとによりなり、該防
水シースは弾性を有する蛇腹部を備え、該蛇腹部の前部
に前記支圧板の挿通孔に挿入するラップ体を備えたこと
を特徴とする引張材用防錆具。1. An end sheath attached to the end of the tension member,
The end sheath is detachably screwed, and its front part is made up of a waterproof sheath that is in close contact with the back side of the pressure plate. The waterproof sheath has an elastic bellows part, and the front part of the bellows part has the above-mentioned structure. A rust preventive device for tension members, which is provided with a wrap body that is inserted into an insertion hole of a pressure support plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990402935U JPH084498Y2 (en) | 1990-12-12 | 1990-12-12 | Anti-corrosion equipment for tensile materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990402935U JPH084498Y2 (en) | 1990-12-12 | 1990-12-12 | Anti-corrosion equipment for tensile materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0487921U JPH0487921U (en) | 1992-07-30 |
| JPH084498Y2 true JPH084498Y2 (en) | 1996-02-07 |
Family
ID=31880782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990402935U Expired - Lifetime JPH084498Y2 (en) | 1990-12-12 | 1990-12-12 | Anti-corrosion equipment for tensile materials |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH084498Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4981574B2 (en) * | 2007-07-31 | 2012-07-25 | 高周波熱錬株式会社 | Fixing structure of braking nut and fastening bolt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5929288A (en) * | 1982-08-12 | 1984-02-16 | セイコーエプソン株式会社 | Electrooptic apparatus |
-
1990
- 1990-12-12 JP JP1990402935U patent/JPH084498Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0487921U (en) | 1992-07-30 |
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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 |