JP2007247267A - Cable protection sheath member to be embedded in bridge road and cable protection sheath to be embedded in bridge road - Google Patents
Cable protection sheath member to be embedded in bridge road and cable protection sheath to be embedded in bridge road Download PDFInfo
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- JP2007247267A JP2007247267A JP2006072255A JP2006072255A JP2007247267A JP 2007247267 A JP2007247267 A JP 2007247267A JP 2006072255 A JP2006072255 A JP 2006072255A JP 2006072255 A JP2006072255 A JP 2006072255A JP 2007247267 A JP2007247267 A JP 2007247267A
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本発明は、架橋道路埋設用ケーブル保護シース部材および架橋道路埋設用ケーブル保護シースに関し、特に耐圧、耐アルカリ性に優れ、緊張ケーブルの耐久性を保証する架橋道路埋設用ケーブル保護シース部材および架橋道路埋設用ケーブル保護シースに関する。 TECHNICAL FIELD The present invention relates to a bridge protection cable embedment sheath member and a bridge protection embedment cable protection sheath, and more particularly to a bridge protection embedment cable protection sheath member and bridge construction embedment that is excellent in pressure resistance and alkali resistance and guarantees durability of a tension cable. The present invention relates to a cable protection sheath.
高架道路、特に高速道路の高架、橋梁等のいわゆる架橋道路は、橋桁間の道路の自重による撓みを補完するために金属の緊張ケーブルを道路に埋設し、そのケーブルを両端から緊張することが行われている。この緊張ケーブルは耐久性を持たせるために保護シース内に挿通されるのが一般的である。 In so-called bridge roads such as elevated roads, especially elevated roads, bridges, etc., metal tension cables are embedded in the roads to compensate for the deflection caused by the weight of the road between the bridge girders, and the cables can be tensioned from both ends. It has been broken. This tension cable is generally inserted into a protective sheath for durability.
この保護シースは樹脂製のものが多く、従来からその素材としてポリエチレン樹脂、ポリ塩化ビニル樹脂、アクリル樹脂／ポリエステル樹脂の積層樹脂等が用いられていた。ところが架橋道路埋設用保護シースは道路に埋設されるため高い強度が要求される。また、ケーブルを挿通したシース内部の空隙には、グラウトと称する注入用セメントが充填される。そのため、注入グラウトの圧に耐えうる耐内圧性が要求され、さらにグラウトが均一に充填されているか、エアポケットができていないかを点検可能にする透明性も要求される。 This protective sheath is often made of resin, and conventionally, a polyethylene resin, a polyvinyl chloride resin, an acrylic resin / polyester resin laminated resin, or the like has been used as its material. However, since the protective sheath for bridge road embedding is embedded in the road, high strength is required. Further, the void inside the sheath through which the cable is inserted is filled with an injecting cement called grout. For this reason, resistance to internal pressure that can withstand the pressure of the injected grout is required, and transparency is also required to enable inspection of whether the grout is uniformly filled or air pockets are not formed.
従来の樹脂製保護シースにおいては、実用性に耐え得る強度を有するもの、透明性を有するものなどは存在していたが、上記の要求性能をすべて満足するものは実現していなかった。 Conventional protective sheaths made of resin have strengths that can withstand practicality, and those that have transparency, but have not achieved all of the above required performances.
本発明の目的は、上記従来技術における問題を解決し、それ自体の強度が高く、耐圧、耐アルカリ性に優れ、緊張ケーブルの耐久性を保証する架橋道路埋設用ケーブル保護シース部材および架橋道路埋設用ケーブル保護シースを提供することにある。 The object of the present invention is to solve the problems in the prior art described above, and has a high strength itself, excellent pressure resistance and alkali resistance, and guarantees the durability of a tensioned cable. It is to provide a cable protection sheath.
上記目的を達成するために本発明は次の手段をとる。
（１）管の外径が５０〜２００ｍｍ、長さが１〜２０ｍ、厚みが１〜７ｍｍであり、管の両端から少なくとも５０ｍｍまでの全外周面にローレット加工が施されたポリアミド樹脂製の管からなることを特徴とする道路埋設用ケーブル保護シース部材。
In order to achieve the above object, the present invention takes the following means.
(1) A tube made of polyamide resin having an outer diameter of 50 to 200 mm, a length of 1 to 20 m, a thickness of 1 to 7 mm, and knurled on the entire outer peripheral surface from both ends of the tube to at least 50 mm. A cable protection sheath member for road embedment, comprising:
（２）管の両端から多くとも２００ｍｍまでの全外周面にローレット加工が施されたことを特徴とする上記（１）に記載の架橋道路埋設用ケーブル保護シース部材。 (2) The bridge protection road embedding cable protection sheath member according to the above (1), wherein the entire outer peripheral surface from the both ends of the pipe to 200 mm at most is knurled.
（３）ポリアミドが、ナイロン６またはナイロン６／ナイロン６１０混合物であることを特徴とする上記（１）または（２）に記載の架橋道路埋設用ケーブル保護シース部材。 (3) The cable protection sheath member for bridged road embedding according to (1) or (2) above, wherein the polyamide is nylon 6 or a nylon 6 / nylon 610 mixture.
（４）上記（１）〜（３）のいずれかに記載の保護シース部材の端部を管状ジョイントに嵌入して接着剤で固定することにより該保護シース部材を複数本接続してなる架橋道路埋設用ケーブル保護シース。 (4) A bridge road formed by connecting a plurality of the protective sheath members by fitting the end portions of the protective sheath members according to any one of (1) to (3) into a tubular joint and fixing them with an adhesive. Cable protection sheath for burial.
（５）管状ジョイントがＡＢＳ樹脂製で、保護シース部材のローレット加工領域を覆う長さと、これを嵌入させうる管径を有し、内周全面にしぼ加工が施されていることを特徴とする上記（４）に記載の架橋道路埋設用ケーブル保護シース。 (5) The tubular joint is made of ABS resin, has a length that covers the knurled region of the protective sheath member, a tube diameter that allows the tubular joint to be inserted, and has a boring process on the entire inner periphery. The cable protection sheath for burying a bridge road according to the above (4).
本発明の架橋道路埋設用ケーブル保護シース部材は、それ自体の強度が高く、また耐圧、耐アルカリ性に優れているのでグラウト注入時の圧力に十分耐え、グラウトによる腐食も起こりにくい。また、本発明の架橋道路埋設用ケーブル保護シースは、保護シース部材をジョイントで連結したものであるが、連結部の接着に工夫があるので連結部からのグラウトの漏洩、連結部破損が防止されている。さらに、本発明の保護シースは、半透明性であるため、グラウト注入状況を目視することができ、作業性に優れる。 The cable protection sheath member for burying a bridge road according to the present invention has high strength and is excellent in pressure resistance and alkali resistance, so that it can sufficiently withstand the pressure at the time of grout injection and is not easily corroded by the grout. Further, the cable protection sheath for bridge road embedding according to the present invention is formed by connecting the protective sheath members with joints. ing. Furthermore, since the protective sheath of the present invention is translucent, the grout injection state can be visually observed, and the workability is excellent.
以下、本発明の架橋道路埋設用ケーブル保護シース部材および保護シースを具体的に説明する。 Hereinafter, the cable protection sheath member and the protection sheath for bridge road embedding according to the present invention will be specifically described.
本発明の架橋道路埋設用ケーブル保護シース部材（以下単にシース部材と称することがある）における架橋道路とは地上道路以外の高架道路、河川、湾岸を跨ぐ橋など、橋脚に張られた道路全般を意味する。また本発明のシース部材はその中に金属製のケーブルを挿通し、グラウトを注入してから道路に埋設される。 The bridge road in the cable protection sheath member for the bridge road embedding of the present invention (hereinafter sometimes referred to simply as a sheath member) is a general road stretched on a bridge pier such as an elevated road other than a ground road, a river, a bridge across the bay, and the like. means. The sheath member of the present invention is embedded in a road after a metal cable is inserted into the sheath member and grout is injected.
本発明のシース部材はポリアミド樹脂製の管で構成される。ポリアミドの種類としてはナイロン６、ナイロン４６、ナイロン６６、ナイロン６１０、ナイロン１２等が用いられるが、中でも強度保持性、経済性の面からナイロン６が好ましく、また、透明性、耐薬品性の面からナイロン６１０が好ましい。そして最も好ましいのがナイロン６またはナイロン６／ナイロン６１０混合物（樹脂組成物）である。 The sheath member of the present invention is composed of a tube made of polyamide resin. Nylon 6, nylon 46, nylon 66, nylon 610, nylon 12 or the like is used as the type of polyamide. Among these, nylon 6 is preferable from the viewpoint of strength retention and economy, and transparency and chemical resistance. To nylon 610 is preferred. Most preferred is nylon 6 or a nylon 6 / nylon 610 mixture (resin composition).
シース部材の形状は円筒管で、外径が５０〜２００ｍｍであり、好ましくは７０〜１５０ｍｍである。外径が５０ｍｍ未満では挿通するケーブルの量が満足できず、また２００ｍｍを越えると耐圧性を維持するのが困難であり、またこれを押出し成形によって製造するのが困難となる。シース部材の長さは１〜２０ｍであり、好ましくは３〜１５ｍである。３ｍ未満では接合部が多くなりすぎ作業性が悪くなるし、２０ｍを越えると運搬に不便であり、またケーブルの挿通も困難になり好ましくない。シース部材の厚みは１〜７ｍｍであり、好ましくは２〜５ｍｍである。１ｍｍ未満では耐圧性に問題が生じ、７ｍｍを越えると半透明性を維持しにくくなる。 The shape of the sheath member is a cylindrical tube, and the outer diameter is 50 to 200 mm, preferably 70 to 150 mm. If the outer diameter is less than 50 mm, the amount of cable to be inserted cannot be satisfied, and if it exceeds 200 mm, it is difficult to maintain pressure resistance, and it is difficult to produce this by extrusion molding. The length of the sheath member is 1 to 20 m, preferably 3 to 15 m. If the length is less than 3 m, the number of joints increases and workability is deteriorated. If the length exceeds 20 m, it is inconvenient to carry and insertion of the cable becomes difficult. The thickness of the sheath member is 1 to 7 mm, preferably 2 to 5 mm. If it is less than 1 mm, a problem arises in pressure resistance, and if it exceeds 7 mm, it becomes difficult to maintain translucency.
本発明のシース部材は管の両端部近傍の外周面にローレット加工を施した領域を有する。ローレット加工とは、管の表面に互いに交差する複数本の溝（螺旋溝）を形成させることにより、矩形、または菱形の突起を多数形成させ、表面を荒くする加工であり、その技術は知られているものが利用できる。ローレット加工による溝の太さ、深さ、本数、密度等は特に限定されず、管径、接着剤の性能によって適宜選択される。ローレット加工を施される領域は管の端部から少なくとも５０ｍｍ、すなわち端から５０ｍｍの間は必ずローレット加工をしなければならない。ローレット加工は通常、端から５０ｍｍを越える領域にも行われるが、端から２００ｍｍのところまでが好ましい。そして、より好ましいのは端から８０〜１３０ｍｍの領域である。 The sheath member of this invention has the area | region which gave the knurling process to the outer peripheral surface of the both ends vicinity of a pipe | tube. The knurling process is a process that roughens the surface by forming a plurality of rectangular or rhombic protrusions by forming a plurality of grooves (spiral grooves) intersecting each other on the surface of the tube. What is available. The thickness, depth, number, density, and the like of the groove by knurling are not particularly limited, and are appropriately selected depending on the tube diameter and the performance of the adhesive. The area to be knurled must be knurled at least 50 mm from the end of the tube, ie between 50 mm from the end. The knurling is usually performed also in a region exceeding 50 mm from the end, but it is preferably up to 200 mm from the end. And more preferable is an area of 80 to 130 mm from the end.
本発明のシース部材を図１、図２に示す。図１は、シース部材の正面図、図２は、シース部材の側面図であり、シース部材１の両末端にローレット加工を施されたローレット加工部２が存在する。
The sheath member of the present invention is shown in FIGS. FIG. 1 is a front view of the sheath member, and FIG. 2 is a side view of the sheath member. A
本発明のシース部材は、端部のローレット加工部を管状のジョイントに嵌入して複数本連結し、ケーブル保護シースを作製する。したがって、本発明の架橋道路埋設用ケーブル保護シースとは、本発明のシース部材をジョイントで連結したものである。本発明のジョイントは管状であり、好ましくはＡＢＳ樹脂で形成される。ジョイントはシース端部のローレット加工部が嵌入されるものであるから、その長さはシースの両ローレット加工部の長さの和にするのが好ましい。また、ジョイントの径はその内径がシース部材の外径と同じかわずかに大きいことが好ましい。厚みは任意に選ぶことができる。ジョイントの内周面にはしぼ加工が施されることが好ましい。しぼ加工はエッチング等の公知の手法を採用することができる。 In the sheath member of the present invention, a knurled portion at the end is fitted into a tubular joint and connected in plural to produce a cable protection sheath. Therefore, the cable protection sheath for bridge road embedding of the present invention is obtained by connecting the sheath members of the present invention with joints. The joint of the present invention is tubular and is preferably formed of ABS resin. Since the joint is fitted with the knurled portion at the end of the sheath, the length is preferably the sum of the lengths of the two knurled portions of the sheath. In addition, the diameter of the joint is preferably the same as or slightly larger than the outer diameter of the sheath member. The thickness can be arbitrarily selected. It is preferable that the inner peripheral surface of the joint is subjected to graining. A well-known technique such as etching can be employed for the graining process.
図３及び図４に本発明のジョイントを示す。図３はジョイントの正面図、図４は側面図であり、ＡＢＳ製のジョイント３の内周面にはしぼ加工（図示せず）が施されている。
3 and 4 show the joint of the present invention. 3 is a front view of the joint, and FIG. 4 is a side view. The inner peripheral surface of the
図５は、本発明の架橋道路埋設用ケーブル保護シースの説明図であり、２本のシース部材の端部がジョイント３に嵌入、接着処理されることにより連結され、保護シース４を形成している。
FIG. 5 is an explanatory view of the cable protection sheath for bridge road embedding according to the present invention. The ends of the two sheath members are connected to the
次に本発明のシース部材の連結について説明する。
ポリアミド樹脂成形品は他の樹脂と接着しにくい。すなわち、ナイロン樹脂用の完璧な接着剤は存在しないのである。そこで本発明は連結部にローレット加工を施し、かつジョイントにＡＢＳ樹脂を用い、さらにジョイントの内周面に、好ましくはしぼ加工を施すことにより、接着効果を向上させた。その結果、市販の接着剤、例えば“セメダインスーパーＸ”を用いて接着が可能になった。
Next, the connection of the sheath member of the present invention will be described.
Polyamide resin molded products are difficult to adhere to other resins. That is, there is no perfect adhesive for nylon resin. Therefore, in the present invention, the bonding effect is improved by performing knurling on the connecting portion, using ABS resin for the joint, and preferably applying graining on the inner peripheral surface of the joint. As a result, it became possible to bond using a commercially available adhesive such as “Cemedine Super X”.
本発明のシースに挿通されるケーブルは、通常３〜１０本の鋼線を撚り合わせたケーブルを１０〜３０本まとめたものが用いられる。ケーブルを挿通したシースの内部には充填用セメントであるグラウトが注入される。本発明のシース部材はポリアミド製であるのでそれ自体強度が大きく、同時にポリアミドは半透明性であるため、グラウトが注入されているところと空隙のところでは明確に目視識別することができる。また、ポリアミド樹脂は、特にナイロン６１０を含むナイロン樹脂は耐アルカリ性があるので、グラウトによる内部劣化が起こりにくい。 As the cable inserted through the sheath of the present invention, a cable in which 10 to 30 cables obtained by twisting 3 to 10 steel wires are usually used is used. Grout, which is a filling cement, is injected into the sheath through which the cable is inserted. Since the sheath member of the present invention is made of polyamide, the strength of the sheath member itself is high, and at the same time, the polyamide is translucent. Therefore, it is possible to clearly distinguish between the place where the grout is injected and the gap. Moreover, since the polyamide resin, especially the nylon resin containing nylon 610, has alkali resistance, internal deterioration due to grout hardly occurs.
ナイロン６にナイロン６１０を配合したポリアミド樹脂組成物を用いて外径１０６ｍｍ、厚み３ｍｍ、長さ５ｍの管を押し出し成形によって製造した。この管は乳白色半透明であった。この間の両末端から１１０ｍｍの領域の外周面にローレット加工を施し、シース部材２本を得た。 A tube having an outer diameter of 106 mm, a thickness of 3 mm, and a length of 5 m was produced by extrusion molding using a polyamide resin composition in which nylon 610 was blended with nylon 6. The tube was milky white translucent. During this time, knurling was performed on the outer peripheral surface of an area of 110 mm from both ends to obtain two sheath members.
一方、同様にＡＢＳ樹脂を用い外径１１４ｍｍ、厚み３．５ｍｍの管を製造し、長さ２５０ｍｍに切断し、内周面をエッチングによりしぼ加工を施し、ジョイントを得た。 On the other hand, similarly, a tube having an outer diameter of 114 mm and a thickness of 3.5 mm was manufactured using ABS resin, cut into a length of 250 mm, and the inner peripheral surface was subjected to graining by etching to obtain a joint.
得られた２本のシース部材のそれぞれの片末端ローレット加工部に接着剤（“セメダインスーパーＸ”）を塗布し、ジョイントに両側から嵌入したのち２４時間放置した。得られたシースについて下記の試験を行った。 Adhesive (“Cemedine Super X”) was applied to each end knurled portion of each of the two sheath members obtained, fitted into the joint from both sides, and allowed to stand for 24 hours. The following tests were performed on the obtained sheath.
＜等圧荷重試験＞
シースを上下から半円筒型の治具で挟み、最大載荷荷重３．１ｋＮで荷重をかけた。その結果ほぼ一様に変形し、除荷後にへこみ、割れはなかった。
<Isopressure load test>
The sheath was sandwiched from above and below by a semi-cylindrical jig, and a load was applied at a maximum loading load of 3.1 kN. As a result, it deformed almost uniformly, and it was not dented or cracked after unloading.
＜局部荷重試験＞
シース内に直径０．８倍の丸鋼を入れ、上部中央部を直径９ｍｍの丸鋼で加圧した。最大載荷荷重１．０ｋＮで８〜１１ｍｍ変形したが、除荷後にへこみ、割れはなかった。
<Local load test>
A round steel having a diameter of 0.8 times was put in the sheath, and the upper central portion was pressurized with a round steel having a diameter of 9 mm. Although it deformed by 8 to 11 mm at a maximum load of 1.0 kN, there was no dent or crack after unloading.
＜耐圧試験＞
両端に止水治具を施し、水を充填させてから水圧を上げた。１．０ＭＰａ到達後５分間保持したが漏水は確認されなかった。また、水が充填される状況は外から目視することができた。
<Pressure resistance test>
Water stop jigs were applied to both ends and the water pressure was increased after filling with water. Although it was kept for 5 minutes after reaching 1.0 MPa, water leakage was not confirmed. Moreover, the condition where water was filled could be visually observed from the outside.
本発明の架橋道路埋設用ケーブル保護シース部材はジョイントで接続することにより長尺の架橋道路埋設用ケーブル保護シースを得ることができ、これは架橋道路の強度を向上させるための緊張ケーブルを保護するシースとして有用に利用できる。 The cable protecting sheath member for bridge road embedding according to the present invention can obtain a long bridge cable embedding sheath for bridge road by connecting with a joint, which protects a tension cable for improving the strength of the bridge road. It can be usefully used as a sheath.
１ ケーブル保護シース部材
２ ローレット加工部
３ ジョイント
４ ケーブル保護シース
1 Cable
Claims (5)
5. The tubular joint is made of ABS resin, has a length that covers a knurled region of the protective sheath member, a tube diameter that allows the tubular joint to be fitted therein, and has been subjected to wobbling on the entire inner periphery. Cable protection sheath for bridge road embedding described in 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006072255A JP2007247267A (en) | 2006-03-16 | 2006-03-16 | Cable protection sheath member to be embedded in bridge road and cable protection sheath to be embedded in bridge road |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006072255A JP2007247267A (en) | 2006-03-16 | 2006-03-16 | Cable protection sheath member to be embedded in bridge road and cable protection sheath to be embedded in bridge road |
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| Publication Number | Publication Date |
|---|---|
| JP2007247267A true JP2007247267A (en) | 2007-09-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2006072255A Pending JP2007247267A (en) | 2006-03-16 | 2006-03-16 | Cable protection sheath member to be embedded in bridge road and cable protection sheath to be embedded in bridge road |
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4946216A (en) * | 1972-09-11 | 1974-05-02 | ||
| JPS53109219A (en) * | 1977-03-02 | 1978-09-22 | Pilgrim Eng Dev | Improvement of pipe joint |
| JPH01106694U (en) * | 1988-01-08 | 1989-07-18 | ||
| JPH01263303A (en) * | 1988-04-12 | 1989-10-19 | Kyokuto Kogen Concrete Shinko Kk | Pc cable anchoring device |
| JPH0238604A (en) * | 1988-07-27 | 1990-02-08 | Taisei Corp | Sheath manufacturing device |
| JPH0386678A (en) * | 1989-08-29 | 1991-04-11 | Nippon Steel Corp | Mobile type cable processing device |
| JPH08100530A (en) * | 1994-09-30 | 1996-04-16 | P C Kyoryo Kk | Confirmation method for injection or discharge of grout for post-tension prestressed concrete and device therefor |
| JP2002030610A (en) * | 2000-05-12 | 2002-01-31 | Totaku Kogyo Kk | Joining method of precast segment for pc bridge and end part member of segment and sheath used for it |
| JP2002235441A (en) * | 2001-02-13 | 2002-08-23 | Sumitomo Constr Co Ltd | Grouting confirming method and transparent sheath with observation hole |
| JP2002363918A (en) * | 2001-06-12 | 2002-12-18 | Hayakawa Kogyo Kk | Drain piping device of bridge beam floor slab |
| JP2004036301A (en) * | 2002-07-05 | 2004-02-05 | Oriental Construction Co Ltd | Precast member with joint connection tube and its connecting method |
| JP2004131956A (en) * | 2002-10-08 | 2004-04-30 | Kyokuto Kogen Concrete Shinko Kk | Grout cap of pc wire anchorage |
| JP2004251065A (en) * | 2003-02-21 | 2004-09-09 | Oriental Construction Co Ltd | Sealing structure and sealing method of sheath made of plastic for inserting pc steel material |
| JP2005155321A (en) * | 2005-01-24 | 2005-06-16 | Anderson Technology Kk | Transparent protective tube for external cable |
| JP2005180162A (en) * | 2003-12-23 | 2005-07-07 | Dongyang Construction Co Ltd | Connecting structure and connecting method of i-type prestressed concrete beam with steel bracket |
| JP2005188101A (en) * | 2003-12-25 | 2005-07-14 | Totaku Industries Inc | Burying method for prestressed concrete sheath and grout filling detector for prestressed concrete sheath |
| JP2005248622A (en) * | 2004-03-05 | 2005-09-15 | Shinko Wire Co Ltd | Pipe joint device |
-
2006
- 2006-03-16 JP JP2006072255A patent/JP2007247267A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4946216A (en) * | 1972-09-11 | 1974-05-02 | ||
| JPS53109219A (en) * | 1977-03-02 | 1978-09-22 | Pilgrim Eng Dev | Improvement of pipe joint |
| JPH01106694U (en) * | 1988-01-08 | 1989-07-18 | ||
| JPH01263303A (en) * | 1988-04-12 | 1989-10-19 | Kyokuto Kogen Concrete Shinko Kk | Pc cable anchoring device |
| JPH0238604A (en) * | 1988-07-27 | 1990-02-08 | Taisei Corp | Sheath manufacturing device |
| JPH0386678A (en) * | 1989-08-29 | 1991-04-11 | Nippon Steel Corp | Mobile type cable processing device |
| JPH08100530A (en) * | 1994-09-30 | 1996-04-16 | P C Kyoryo Kk | Confirmation method for injection or discharge of grout for post-tension prestressed concrete and device therefor |
| JP2002030610A (en) * | 2000-05-12 | 2002-01-31 | Totaku Kogyo Kk | Joining method of precast segment for pc bridge and end part member of segment and sheath used for it |
| JP2002235441A (en) * | 2001-02-13 | 2002-08-23 | Sumitomo Constr Co Ltd | Grouting confirming method and transparent sheath with observation hole |
| JP2002363918A (en) * | 2001-06-12 | 2002-12-18 | Hayakawa Kogyo Kk | Drain piping device of bridge beam floor slab |
| JP2004036301A (en) * | 2002-07-05 | 2004-02-05 | Oriental Construction Co Ltd | Precast member with joint connection tube and its connecting method |
| JP2004131956A (en) * | 2002-10-08 | 2004-04-30 | Kyokuto Kogen Concrete Shinko Kk | Grout cap of pc wire anchorage |
| JP2004251065A (en) * | 2003-02-21 | 2004-09-09 | Oriental Construction Co Ltd | Sealing structure and sealing method of sheath made of plastic for inserting pc steel material |
| JP2005180162A (en) * | 2003-12-23 | 2005-07-07 | Dongyang Construction Co Ltd | Connecting structure and connecting method of i-type prestressed concrete beam with steel bracket |
| JP2005188101A (en) * | 2003-12-25 | 2005-07-14 | Totaku Industries Inc | Burying method for prestressed concrete sheath and grout filling detector for prestressed concrete sheath |
| JP2005248622A (en) * | 2004-03-05 | 2005-09-15 | Shinko Wire Co Ltd | Pipe joint device |
| JP2005155321A (en) * | 2005-01-24 | 2005-06-16 | Anderson Technology Kk | Transparent protective tube for external cable |
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