JPH1082178A - Cable end fixing method and cable end fixing structure - Google Patents
Cable end fixing method and cable end fixing structureInfo
- Publication number
- JPH1082178A JPH1082178A JP25734996A JP25734996A JPH1082178A JP H1082178 A JPH1082178 A JP H1082178A JP 25734996 A JP25734996 A JP 25734996A JP 25734996 A JP25734996 A JP 25734996A JP H1082178 A JPH1082178 A JP H1082178A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- sleeve
- fixing
- filler
- fixed
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/085—Tensile members made of fiber reinforced plastics
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/08—Members specially adapted to be used in prestressed constructions
- E04C5/12—Anchoring devices
- E04C5/127—The tensile members being made of fiber reinforced plastics
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Reinforcement Elements For Buildings (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、各種のケーブル
（繊維複合材ケーブルやワイヤロープ等）を緊張して端
部を定着し、例えば土木建築分野等で各種の構造物に緊
張材やコンクリート補強材等として適用するケーブル端
部定着方法及びケーブル端部定着構造に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to tensioning various cables (fiber composite cables, wire ropes, etc.) to fix the ends thereof. The present invention relates to a cable end fixing method and a cable end fixing structure applied as a material or the like.
【０００２】[0002]
【従来の技術】従来、各種のケーブル（繊維複合材ケー
ブルやワイヤロープ等）を緊張して端部を定着する場合
は、図３Ａに示すように鋼管等で形成したスリーブｂに
ケーブルａの端部を挿入し、スリーブの平行孔部ｃに充
填材ｆを充填して硬化せしめ、さらに、必要に応じケー
ブルの端末部ａ２を適度に解撚して充填材ｆの浸透を高
めたり、スリーブｂの平行孔部にスパイラル状の溝ｄを
設けてスリーブと充填材との係止力を高めてケーブルの
端部にスリーブを定着し、このケーブルａを適度に緊張
して、ケーブル端部に定着したスリーブの外ネジｅにね
じ込んだナツトや定着板、くさび等の定着金具でスリー
ブを構造物に定着して（図示省略）、各種の構造物にお
いて緊張材やコンクリート補強材等として施工されてい
る。2. Description of the Related Art Conventionally, when various cables (fiber composite material cables, wire ropes, etc.) are tensioned and their ends are fixed, as shown in FIG. 3A, an end of a cable a is attached to a sleeve b formed of a steel pipe or the like. The filler f is filled in the parallel hole c of the sleeve and hardened, and if necessary, the terminal part a2 of the cable is appropriately untwisted to increase the penetration of the filler f, or the sleeve b A spiral groove d is provided in the parallel hole to increase the locking force between the sleeve and the filler, thereby fixing the sleeve to the end of the cable. The cable a is appropriately tensioned and fixed to the end of the cable. The sleeve is fixed to the structure with a fixing member such as a nut, a fixing plate, a wedge or the like screwed into the outer screw e of the sleeve (not shown), and is used as a tension member or a concrete reinforcing material in various structures. .
【０００３】また、図３Ｂに示すようにスリーブｂ１に
設けたテーパー孔部ｃ１にケーブルａの端部を挿入し、
必要に応じケーブルの端末部ａ２を適度に解撚して、テ
ーパー孔部に充填材ｆを充填して硬化せしめ、ケーブル
ａを適度に緊張して、ケーブルの端部に定着したスリー
ブｂ１を適宜の定着金具で構造物に定着して施工するケ
ーブル端部定着方法及びケーブル端部定着構造になつて
いる。Further, as shown in FIG. 3B, an end of the cable a is inserted into a tapered hole c1 provided in a sleeve b1,
If necessary, the terminal portion a2 of the cable is appropriately untwisted, the taper hole portion is filled with the filler f and hardened, the cable a is appropriately tensioned, and the sleeve b1 fixed to the end portion of the cable is appropriately removed. And a cable end fixing structure for fixing the structure to a structure with the fixing metal fitting.
【０００４】[0004]
【発明が解決しようとする課題】従来のケーブル端部定
着方法及びケーブル定着構造は、最近の大容量化された
ケーブルに対応させて定着力を高める必要があるが、図
３Ａに示す場合は、前記のように平行孔部内の充填材の
摩擦力でケーブルの引張荷重を受け止め溝で高めた係止
力等で定着した構造になつているため、このスリーブ定
着力には限界がありケーブルの破断前に抜脱するなどの
課題がある。また、図３Ｂに示す場合は、前記のように
テーパー孔部内の充填材のクサビ作用でケーブルの引張
荷重を受け止めて定着力を高めた構造になつているが、
テーパー孔部の小径部（スリーブの基端側）でケーブル
が局部的に疲労し易く耐久性が低下するの課題がある。The conventional cable end fixing method and the conventional cable fixing structure need to increase the fixing force in correspondence with recent large-capacity cables. In the case shown in FIG. As described above, since the cable is fixed by the locking force and the like increased in the receiving groove by receiving the tensile load of the cable by the frictional force of the filler in the parallel hole, the sleeve fixing force is limited and the cable breaks. There are issues such as withdrawal before. Further, in the case shown in FIG. 3B, as described above, the structure in which the fixing force is increased by receiving the tensile load of the cable by the wedge action of the filler in the tapered hole portion,
There is a problem that the cable is easily fatigued locally at the small diameter portion (the base end side of the sleeve) of the tapered hole portion and durability is reduced.
【０００５】本発明は、前記のような課題を解決するた
めに開発されたものであり、その目的とする処は、スリ
ーブの平行孔部とテーパー孔部の両充填材でケーブルの
引張荷重を受け止めて定着し、また、スリーブの端末側
に設けたネジ部に緊張金具を連結してケーブル緊張を容
易にするなど、施工性とともに定着性能、信頼性及び耐
久性を向上したケーブル端部定着方法及びケーブル端部
定着構造を提供するにある。SUMMARY OF THE INVENTION The present invention has been developed to solve the above-mentioned problem. The object of the present invention is to reduce the tensile load of a cable by using both fillers in a parallel hole and a taper hole of a sleeve. A cable end fixing method that improves fixing performance, reliability and durability as well as workability, such as receiving and fixing, and connecting a tension fitting to the thread part provided on the terminal side of the sleeve to facilitate cable tensioning And to provide a cable end anchoring structure.
【０００６】[0006]
【課題を解決するための手段】本発明は、スリーブ内に
ケーブルの端部を挿入して、スリーブ内に充填材を充填
し硬化させてケーブルの端部にスリーブを定着し、ケー
ブルを緊張してスリーブを定着金具で構造物に定着する
ケーブル端部定着方法において、スリーブの基部側に設
けた平行孔部の硬化した充填材でケーブルの引張荷重を
受け止めて定着するとともに、スリーブの平行孔部の外
端側に連設したテーパー孔部の硬化した充填材のくさび
作用でケーブルの引張荷重をさらに強力に受け止めて定
着し、ケーブル端部の局部的な疲労を防止するなど、定
着力、信頼性及び耐久性を効果的に高め、テーパー孔部
の端末側に設けたネジ部に緊張用金具を連結してケーブ
ルの緊張を容易にするなど、施工性とともに定着性能、
信頼性及び耐久性を高めている。SUMMARY OF THE INVENTION The present invention comprises inserting the end of a cable into a sleeve, filling and curing the filler in the sleeve, fixing the sleeve to the end of the cable, and tensioning the cable. A fixing means for fixing the sleeve to the structure with the fixing metal fitting by fixing the cable by fixing the tensile load of the cable with the hardened filler in the parallel hole provided on the base side of the sleeve and fixing the parallel hole in the sleeve. The wedge action of the hardened filler in the tapered hole part connected to the outer end side of the cable makes it possible to more strongly receive and fix the tensile load of the cable and prevent local fatigue at the cable end. Effectiveness and durability as well as ease of cable tensioning by connecting a tensioning bracket to the thread provided on the terminal side of the tapered hole to facilitate tensioning of the cable,
Improves reliability and durability.
【０００７】スリーブ内にケーブルの端部を挿入して、
スリーブ内に充填材を充填し硬化させてケーブルの端部
をスリーブに定着し、ケーブルを緊張してスリーブを定
着金具で構造物に定着したケーブル端部定着構造におい
て、スリーブの基部側に設け充填して硬化した充填材で
ケーブルの端部を受け止めて定着した平行孔部と、スリ
ーブの平行孔部の外端側に連設し充填して硬化した充填
材でケーブルの端部を受け止めて定着したテーパー孔部
と、ケーブルを緊張してスリーブを構造物に定着した定
着金具とを具備し、同様に定着性能、信頼性及び耐久性
を高めている。また、少なくともスリーブの外端側に連
設したテーパー孔部に設けた溝群により定着性能、信頼
性をさらに高め、スリーブのテーパー孔部の端末側に設
けたネジ部に緊張用金具を連結してケーブル緊張を容易
にするなど、総合的に施工性とともに定着性能、信頼性
及び耐久性を高めている。[0007] Insert the end of the cable into the sleeve,
Filling the inside of the sleeve and curing it, fixing the end of the cable to the sleeve, tensioning the cable and fixing the sleeve to the structure with the fixing bracket A parallel hole that has received and fixed the end of the cable with the filler that has been hardened and fixed, and an end of the cable that has been connected to the outer end of the parallel hole of the sleeve and that has been filled and cured has received and fixed the end of the cable. And a fixing fitting in which the cable is tensioned to fix the sleeve to the structure, thereby similarly improving the fixing performance, reliability and durability. Further, the fixing performance and the reliability are further improved by the groove group provided in the tapered hole portion continuously provided at least on the outer end side of the sleeve, and the tension fitting is connected to the screw portion provided on the terminal side of the tapered hole portion of the sleeve. It facilitates cable tensioning and enhances overall workability as well as fixing performance, reliability and durability.
【０００８】[0008]
【発明の実施の形態】図１及び図２Ａに本発明の第１実
施例、図２Ｂに第２実施例を示している。図中ａはケー
ブル（図示例は複数本の繊維ストランドａ１を束ねて形
成した繊維複合材ケーブル、又は各種のワイヤロープ
等）、ａ２はケーブルの端末部、１はスリーブ、１ａは
スリーブの基部側に設けた平行孔部、１ｂは平行孔部の
外端側に連設した溝群２付きのテーパー孔部、１ｃはテ
ーパー孔部の端末側に設けたネジ部、３はスリーブの外
ネジ、４ａは平行孔部の充填材、４ｂはテーパー孔部の
充填材、５，６ａは定着板６ａとナツト５からなるスリ
ーブの定着金具、６ｂ，６ｃは定着板６ｂとくさび６ｃ
からなる他の定着金具、８は外ネジ付きの蓋、９はボル
ト部９ａ付きの緊張用金具、１０は本発明の端部定着
具、１１は構造物、１１ａは構造物に設けたケーブルの
挿通孔である。1 and 2A show a first embodiment of the present invention, and FIG. 2B shows a second embodiment. In the figure, a is a cable (in the illustrated example, a fiber composite material cable formed by bundling a plurality of fiber strands a1 or various wire ropes, etc.), a2 is a terminal portion of the cable, 1 is a sleeve, 1a is a base side of the sleeve. 1b is a tapered hole with a groove group 2 continuously provided on the outer end side of the parallel hole, 1c is a threaded portion provided on the terminal side of the tapered hole, 3 is an external thread of the sleeve, 4a is a filler for a parallel hole, 4b is a filler for a tapered hole, 5, 6a is a fixing member for a sleeve composed of a fixing plate 6a and a nut 5, 6b and 6c are a fixing plate 6b and a wedge 6c.
8 is a cover with an external thread, 9 is a tensioning fitting with a bolt 9a, 10 is an end fixing tool of the present invention, 11 is a structure, and 11a is a cable provided on the structure. It is an insertion hole.
【０００９】図示の実施例は、スリーブ１内にケーブル
ａの端部を挿入して、スリーブ内に充填材４ａ，４ｂを
充填し硬化させてケーブルの端部にスリーブを定着し、
ケーブルを緊張してスリーブを定着金具５，６ａ又は６
ｂ，６ｃで構造物１１に定着するケーブル端部定着方法
において、スリーブ１の基部側に設けた平行孔部１ａの
硬化した充填材４ａでケーブルａの引張荷重を受け止め
て定着し、スリーブの平行孔部１ａの外端側に連設した
テーパー孔部１ｂの硬化した充填材４ｂでケーブルの引
張荷重を受け止めて定着するケーブル端部定着方法にな
つている。In the illustrated embodiment, the end of the cable a is inserted into the sleeve 1, the fillers 4a and 4b are filled and cured in the sleeve, and the sleeve is fixed to the end of the cable.
Tension the cable to fix the sleeve to the fixing bracket 5, 6a or 6
In the cable end fixing method for fixing to the structure 11 by b and 6c, the hardening filler 4a in the parallel hole 1a provided on the base side of the sleeve 1 receives the tensile load of the cable a and fixes the cable. The cable end fixing method is to fix the cable by receiving the tensile load of the cable with the hardened filler 4b of the tapered hole 1b connected to the outer end side of the hole 1a.
【００１０】また、前記のケーブル端部定着方法におい
て、スリーブ１のテーパー孔部１ｂの端末側に設けたネ
ジ部１ｃに緊張用金具９を連結してケーブルを緊張した
後、構造物１１にスリーブを定着金具５，６ａ又は６
ｂ，６ｃで定着することを特徴とするケーブル端部定着
方法になつている。Further, in the above-described cable end fixing method, the tension fitting 9 is connected to the threaded portion 1c provided on the terminal side of the tapered hole portion 1b of the sleeve 1 to tension the cable. Fixing bracket 5, 6a or 6
A fixing method at the end of the cable is characterized in that fixing is performed at b and 6c.
【００１１】さらに、スリーブ１内にケーブルａの端部
を挿入して、スリーブ内に充填材４ａ，４ｂを充填し硬
化させてスリーブにケーブルの端部を定着し、ケーブル
を緊張して構造物１１にスリーブを定着金具で定着した
ケーブル端部定着構造において、スリーブ１の基部側に
設け充填し硬化した充填材４ａでケーブルａの端部を受
け止めて定着した平行孔部１ａと、スリーブの平行孔部
の外端側に連設し充填し硬化した充填材４ｂでケーブル
の端部を受け止めて定着したテーパー孔部１ｂと、ケー
ブルを緊張して構造物１１にスリーブ１を定着した定着
金具５，６ａ又は６ｂ，６ｃとを具備したケーブル端部
定着構造になつている。Further, the end of the cable a is inserted into the sleeve 1, the fillers 4a and 4b are filled and cured in the sleeve, and the end of the cable is fixed to the sleeve. In a cable end fixing structure in which a sleeve is fixed to the sleeve 11 by a fixing bracket, a parallel hole portion 1a provided on the base side of the sleeve 1 and receiving and fixing the end of the cable a with a filled and hardened filler 4a and a parallel portion of the sleeve. A tapered hole 1b, which is connected to the outer end side of the hole and is filled with the filled and hardened filler 4b to receive and fix the end of the cable, and a fixing fitting 5 that fixes the sleeve 1 to the structure 11 by tensioning the cable. , 6a or 6b, 6c.
【００１２】また、前記のケーブル端部定着構造におい
て、少なくともスリーブ１の外端側に連設したテーパー
孔部１ｂに溝群２を設けたことを特徴とするケーブル端
部定着構造になつている。Further, in the above-described cable end fixing structure, a groove group 2 is provided at least in a tapered hole portion 1b continuously provided on the outer end side of the sleeve 1 to provide a cable end fixing structure. .
【００１３】さらにまた、前記のケーブル端部定着構造
において、スリーブ１のテーパー孔部１ｂの端末側に緊
張用金具９を連結するネジ部１ｃを設けたことを特徴と
するケーブル端部定着構造になつている。Further, in the above-mentioned cable end fixing structure, a screw portion 1c for connecting the tension fitting 9 is provided on the end side of the tapered hole portion 1b of the sleeve 1 in the cable end fixing structure. I'm sorry.
【００１４】さらに詳述すると、本発明は、好ましくは
炭素繊維等の繊維で形成した複数本の繊維ストランドａ
１を熱硬化性の合成樹脂で一体的に束ねた繊維複合材ケ
ーブルａ（図示例，図１Ａ，Ｂ参照）や、図示省略した
各種のワイヤロープの端部定着に適用される。図示の繊
維複合材ケーブルａは、この端部にスリーブ１を挿入し
て充填材４ａ，４ｂで定着し、スリーブ１を定着金具
５，６ａ又は６ｂ，６ｃで各種の構造物１１に定着する
構造になつている。More specifically, the present invention relates to a plurality of fiber strands a, preferably formed of fibers such as carbon fibers.
The present invention is applied to a fiber composite material cable a (FIG. 1A and FIG. 1B) in which thermosetting synthetic resins 1 are integrally bundled, and to end fixing of various wire ropes not shown. The illustrated fiber composite cable a has a structure in which the sleeve 1 is inserted into this end portion and fixed by the fillers 4a and 4b, and the sleeve 1 is fixed to various structures 11 by the fixing fittings 5, 6a or 6b and 6c. It has become.
【００１５】スリーブ１は、好ましくは鋼管や繊維強化
樹脂等で筒状に形成するとともに、ケーブルａに作用す
る引張荷重及び圧縮荷重と同等以上の耐力を有するよう
に適度の厚さ及び長さに形成し、この基部側（ケーブル
延長側の過半部）に、ケーブルａの直径に対応した適度
の内径を有し長さ方向に同一径に形成した平行孔部１ａ
を設け、この外端側に外側が大径になるテーパー孔部１
ｂ及びこの端末側にネジ部１ｃを連設し、さらに、少な
くともテーパー孔部１ｂに溝群２（例えばスパイラル
状）を設け、必要に応じ平行孔部１ａに同様な溝群を設
け（図示省略）、スリーブ１の外周に外ネジ３を設けた
構造になつている。ネジ部１ｃには図１Ｃに示す蓋８を
着脱可能にねじ込んで装着し、図１Ｄに示す緊張用金具
９をねじ込み連結する。図示例のネジ部１ｃは雌ネジに
なつているが、必要に応じ外ネジ３の兼用も可能であ
る。この場合は、外ネジ３にねじ込む雌ネジ付きの蓋や
緊張用金具が使用される（図示省略）。The sleeve 1 is preferably formed of a steel pipe or a fiber-reinforced resin into a cylindrical shape, and has an appropriate thickness and length so as to have a proof stress equal to or more than a tensile load and a compressive load acting on the cable a. A parallel hole 1a having an appropriate inner diameter corresponding to the diameter of the cable a and having the same diameter in the length direction is formed on the base side (the majority of the cable extension side).
And a tapered hole portion 1 having a large outside diameter on the outer end side.
b and a screw portion 1c on the terminal side, a groove group 2 (for example, spiral shape) is provided at least in the tapered hole portion 1b, and a similar groove group is provided in the parallel hole portion 1a as necessary (not shown). ), The outer thread 3 is provided on the outer periphery of the sleeve 1. A lid 8 shown in FIG. 1C is detachably screwed into the screw portion 1c and mounted, and a tension fitting 9 shown in FIG. 1D is screwed and connected. Although the screw portion 1c in the illustrated example is a female screw, the external screw 3 can be used as necessary, if necessary. In this case, a lid with a female screw or a metal fitting for screwing into the external screw 3 is used (not shown).
【００１６】図示の繊維複合材ケーブルａについて説明
すると、図１に示すようにスリーブ１内にケーブルａの
端部を挿入しこの端末部ａ２を適度に解撚して、テーパ
ー孔部１ｂにエポキシ樹脂等又は膨脹系（セメント系
等）の充填材４ｂを充填し、必要に応じネジ部１ｃに蓋
８を着脱可能にねじ込んでスリーブ１の端末側の口元を
塞ぎ、充填材４ｂが適度に硬化した後、平行孔部１ａに
好ましくは膨脹系（セメント系等）の充填材４ｂを充填
して硬化せしめ、繊維複合材ケーブルａの端部に充填材
４ａ，４ｂを介しスリーブ１を一体的に定着して端部定
着具１０に形成される。Referring to the illustrated fiber composite cable a, as shown in FIG. 1, the end of the cable a is inserted into the sleeve 1 and the terminal a2 is appropriately untwisted, and the epoxy is inserted into the tapered hole 1b. Filling with a filler material 4b of resin or the like or an expansion type (such as a cement type), the lid 8 is removably screwed into the screw portion 1c as necessary to close the end on the terminal side of the sleeve 1, and the filler material 4b is appropriately cured. After that, the parallel hole portion 1a is filled with a filler 4b, preferably of an expansion type (such as cement type), and cured, and the sleeve 1 is integrally attached to the end of the fiber composite cable a via the fillers 4a, 4b. The toner is fixed and formed on the end fixing device 10.
【００１７】次に、両端部に端部定着具１０を定着した
繊維複合材ケーブルａは、例えば、図２Ａに示すように
構造物１１の挿通孔１１ａに挿通して、外ネジを設けて
いない図示左側の端部定着具１０は、このスリーブ１を
定着板６ｂやくさび６ｃ等の定着金具で構造物１１に定
着し、図示右側の外ネジ３付き端部定着具１０は、この
スリーブ１の外ネジ３にナツト５をねじ込み、必要に応
じ図２Ｂに示すようにネジ部１ｃに緊張金具９をねじ込
み連結して、適宜の手段（図示省略）で緊張金具９及び
スリーブ１を介し繊維複合材ケーブルａを適度に牽引し
て緊張した後、ナツト５をさらにねじ込み定着板６ａと
ともにこの端部定着具１０を構造物１１に定着して、繊
維複合材ケーブルａを緊張して容易に精度良く施工でき
る。Next, the fiber composite cable a having the end fixing devices 10 fixed at both ends is inserted into the insertion hole 11a of the structure 11 as shown in FIG. 2A, for example, and is not provided with an external screw. The left end fixing device 10 shown in the figure fixes the sleeve 1 to the structure 11 with a fixing metal such as a fixing plate 6b or a wedge 6c. The nut 5 is screwed into the outer screw 3 and, if necessary, a tension fitting 9 is threadedly connected to the threaded portion 1c as shown in FIG. 2B, and the fiber composite material is inserted through the tension fitting 9 and the sleeve 1 by appropriate means (not shown). After the cable "a" is properly pulled and tensioned, the nut 5 is further screwed in and the end fixing device 10 is fixed to the structure 11 together with the fixing plate 6a, and the fiber composite cable "a" is tensioned and easily and accurately constructed. it can.
【００１８】繊維複合材ケーブルａを前記のように施工
すると、平行孔部１ａの膨脹系の充填材４ａが膨脹して
ケーブル内にも浸透しケーブル及びスリーブ１内で摩擦
力及び係止力が著しく高められて、繊維複合材ケーブル
ａの引張荷重をその端部で効果的に受け止めて定着する
とともに、繊維複合材ケーブルのさらに外端部におい
て、この引張荷重をテーパー部１ｂ内の充填材４ｂによ
るくさび作用でさらに強く受け止めて定着し、テーパー
部１ｂの小径部における局部的なケーブル疲労が効果的
に防止されて、大容量化ケーブルにおける大きい引張荷
重をも十分に受け止めて定着することが可能であるな
ど、優れた施工性とともに端部定着性能、信頼性が得ら
れる。When the fiber composite cable a is constructed as described above, the filler 4a of the expansion system in the parallel hole 1a expands and penetrates into the cable, and the frictional force and the locking force in the cable and the sleeve 1 are reduced. It is significantly increased to effectively receive and fix the tensile load of the fiber composite cable a at its end, and furthermore, at the outer end of the fiber composite cable, to reduce this tensile load to the filler 4b in the tapered portion 1b. The wedge effect of the cable allows the cable to be more strongly received and fixed, local cable fatigue at the small diameter portion of the tapered portion 1b is effectively prevented, and a large tensile load in a large capacity cable can be sufficiently received and fixed. As a result, it is possible to obtain not only excellent workability but also end fixing performance and reliability.
【００１９】また、ワイヤロープの端部を定着する場合
は、スリーブ１のテーパー孔部１ｂ及び平行孔部１ａ内
に亜鉛等や膨脹系（セメント系等）の充填材４ｂ，４ａ
を充填して、ワイヤロープの端部にスリーブ１を定着
し、同様な手段でワイヤロープを適度に緊張して定着金
具５，６ａ又は６ｂ，６ｃで定着して同様に施工され、
繊維複合材ケーブルの場合と同様に、優れた施工性とと
もに端部定着性能、信頼性が得られる。When the end of the wire rope is fixed, the filler 4b, 4a of zinc or the like (cement type) is provided in the tapered hole 1b and the parallel hole 1a of the sleeve 1.
Is filled, the sleeve 1 is fixed to the end of the wire rope, the wire rope is appropriately tensioned by the same means, and fixed by the fixing metal fittings 5, 6a or 6b, 6c.
As in the case of the fiber composite material cable, it is possible to obtain not only excellent workability but also end fixing performance and reliability.
【００２０】図１Ｂに示すような１×７構造の炭素繊維
ストランド（１本当たりの破断荷重１６ｔｆ，１２．５
ｍｍφ）を１９本束ねた炭素繊維複合材ケーブルを供試
体として、このケーブルの両端部に鋼製スリーブを図１
Ａに示す構成（平行孔部に膨脹系の充填材、テーパー孔
部にエポキシ樹脂の充填材を充填）で定着して実施例
１，２，３とし、鋼製スリーブを図３Ｂに示す構成（テ
ーパー孔部にエポキシ樹脂の充填材を充填）で定着して
比較例とし、最大引張荷重試験をして表１のような結果
が得られた。As shown in FIG. 1B, a carbon fiber strand having a 1 × 7 structure (breaking load per strand 16 tf, 12.5
As a test piece, a carbon fiber composite material cable in which 19 pieces (mmφ) were bundled was used, and steel sleeves were attached to both ends of the cable as shown in FIG.
A (Examples 1, 2 and 3) are fixed by the configuration shown in FIG. 3A (filling of an expansion type filler into the parallel holes and an epoxy resin filler into the tapered holes), and the steel sleeve shown in FIG. The tapered hole was filled with an epoxy resin filler) and fixed as a comparative example, and a maximum tensile load test was performed. The results shown in Table 1 were obtained.
【００２１】表１から明らかなように平行孔部にテーパ
ー孔部を連設した本発明の各実施例は、平均破断荷重２
８６ｔｆであり、破断状況もケーブル破断のみで定着金
具が抜けがなかつたのに対し、平行孔部の充填材のみで
定着した比較例では、平均破断荷重２５０ｔｆに低下し
て、ケーブル端部が早くスリーブから抜け出た。この結
果から明らかなように比較例の定着機構では定着力の限
界がありケーブル強度が低下するのに対し、本発明の各
実施例は、十分にケーブルの強度が発揮され定着効率が
効果的に高められるなどの評価が得られた。As is clear from Table 1, each of the embodiments of the present invention in which a tapered hole portion is connected to a parallel hole portion has an average breaking load of 2%.
86 tf, the breaking condition was also the cable breaking only, and the fixing fitting did not come off. On the other hand, in the comparative example in which the fixing was performed only with the filler in the parallel holes, the average breaking load was reduced to 250 tf, and the cable end portion was early. I got out of the sleeve. As is clear from these results, the fixing mechanism of the comparative example has a limit of the fixing force and the cable strength is reduced, whereas the respective embodiments of the present invention show that the cable strength is sufficiently exhibited and the fixing efficiency is effectively improved. Evaluations such as being enhanced were obtained.
【００２２】[0022]
【表１】 [Table 1]
【００２３】さらに、前記の供試体を使用してケーブル
に作用する平均応力を１４３ｋｇｆ／ｍｍ2 、応力振幅
を４０ｋｇｆ／ｍｍ2 とした引張疲労試験をして、ケー
ブルの疲労性を確認した結果、本発明の実施例は、この
試験を２００万回繰り返し応力を作用させてもケーブル
の定着部に格別な異常が認められなかつたのに対し、テ
ーパー孔部の充填剤のみで定着した比較例では、約９５
万回でスリーブのテーパー孔部の小径部でケーブルが破
断した。即ち本発明の実施例は、このテーパー孔部の小
径部でケーブルが格別に破断されないで耐久性が著しく
高められる評価が得られた。さらにまた、前記のような
構造の本発明において、無収縮モルタルや他の樹脂系統
の充填材を使用してもほぼ同様な作用、効果が得られる
ことも確認している。Further, a tensile fatigue test was carried out using the above-mentioned specimens with an average stress acting on the cable of 143 kgf / mm 2 and a stress amplitude of 40 kgf / mm 2, and as a result of confirming the fatigue properties of the cable, In the example of the present invention, the test was repeated 2 million times, and no extraordinary abnormality was observed in the fixing portion of the cable even when the stress was applied. , About 95
The cable was broken at the small diameter portion of the tapered hole portion of the sleeve after 10,000 times. That is, in the example of the present invention, the evaluation that the cable was not particularly broken at the small diameter portion of the tapered hole portion and the durability was remarkably improved was obtained. Furthermore, in the present invention having the above-described structure, it has been confirmed that substantially the same operation and effect can be obtained by using a non-shrink mortar or a filler of another resin system.
【００２４】図示の実施例は、主に繊維複合材ケーブル
の定着について説明しているが、各種のワイヤロープの
定着にも同様に適用される。また、図示例の使用態様の
他に各種の緊張材やコンクリート補強材等として汎用さ
れる。Although the illustrated embodiment mainly describes the anchoring of a fiber composite cable, it is equally applicable to the anchoring of various wire ropes. In addition to the usage in the illustrated example, it is widely used as various tendon materials, concrete reinforcing materials, and the like.
【００２５】[0025]
【発明の効果】本発明は、前記のようにスリーブ内にケ
ーブルの端部を挿入し、充填材を充填し硬化させてケー
ブルの端部にスリーブを定着し、ケーブルを緊張して構
造物にスリーブを定着金具で定着するケーブル端部定着
方法において、スリーブに設けた平行孔部の硬化した充
填材でケーブルの引張荷重が受け止めて定着されるとと
もに、平行孔部の外端側に連設したテーパー孔部の硬化
した充填材でケーブルの引張荷重がさらに強力に受け止
めて定着され、また、テーパー孔部の小径部におけるケ
ーブルの局部的な疲労が効果的に防止される。さらに、
スリーブのテーパー孔部の端末側に連設したネジ部に緊
張用金具を連結してケーブルの緊張が容易になるなど、
施工性とともに端部定着性能、信頼性及び耐久性を著し
く向上されている。According to the present invention, as described above, the end of the cable is inserted into the sleeve, the filler is filled and hardened to fix the sleeve to the end of the cable, and the cable is tensioned to the structure. In the cable end fixing method in which the sleeve is fixed by the fixing bracket, the tensile load of the cable is received and fixed by the hardened filler in the parallel hole provided in the sleeve, and the cable is connected to the outer end side of the parallel hole. The tensile load of the cable is more strongly received and fixed by the hardened filler in the tapered hole, and the local fatigue of the cable in the small diameter portion of the tapered hole is effectively prevented. further,
The tensioning bracket is connected to the threaded part connected to the terminal side of the tapered hole part of the sleeve to make it easier to tension the cable.
The end fixing performance, reliability and durability as well as workability are remarkably improved.
【００２６】また、スリーブの基部側に設けて充填し硬
化した充填材でケーブルの端部を一次的に受け止めて定
着した平行孔部と、スリーブの平行孔部の外端側に連設
して充填し硬化した充填材でケーブルの端部を受け止め
て定着したテーパー孔部と、ケーブルを緊張して構造物
にスリーブを定着した定着金具とを具備して、定着性
能、信頼性及び耐久性を高めている。また、少なくとも
テーパー孔部の内面に溝群を設けて定着力、信頼性をさ
らに高め、テーパー孔部の端末側に緊張用金具を連結す
るネジ部を設けてケーブル緊張を容易にするなど、総合
的に施工性とともに定着性能、信頼性及び耐久性を著し
く向上している。A parallel hole portion which is provided on the base side of the sleeve and temporarily receives and fixes the end of the cable with a filler which is filled and hardened and is connected to the outer end side of the parallel hole portion of the sleeve. Equipped with a tapered hole that fixes and fixes the end of the cable with the filled and cured filler, and a fixing bracket that fixes the sleeve to the structure by tensioning the cable to improve fixing performance, reliability and durability. Is increasing. Also, at least a groove group is provided on the inner surface of the tapered hole to further increase the fixing force and reliability, and a screw portion for connecting a tensioning metal fitting at the end side of the tapered hole to facilitate cable tensioning. In addition to the workability, the fixing performance, reliability and durability are remarkably improved.
【図１】本発明の一実施例を示す縦断面図（Ａ）と繊維
ストランドの一例を示す断面図（Ｂ）とスリーブ外端部
の蓋（Ｃ）及び緊張用金具の一例を示す側面図（Ｄ）FIG. 1 is a longitudinal sectional view (A) showing an embodiment of the present invention, a sectional view (B) showing an example of a fiber strand, a side view showing an example of a cover (C) at the outer end of a sleeve, and a fitting for tensioning. (D)
【図２】ケーブル端部定着方法の一施工例を示す側視機
構図（Ａ）及び他の施工例を示す側視機構図（Ｂ）FIG. 2A is a side view mechanism diagram showing an example of a cable end fixing method, and FIG. 2B is a side view mechanism diagram showing another example of the method.
【図３】従来例を示す縦断面図（Ａ）及び他の従来例を
示す断面図（Ｂ）である。FIG. 3 is a longitudinal sectional view (A) showing a conventional example and a sectional view (B) showing another conventional example.
ａ ケーブル １ スリーブ １ａ 平行孔部 １ｂ テーパー孔部 １ｃ ネジ部 ４ａ，４ｂ 充填材 ５，６ａ、６ａ，６ｂ 定着金具 ９ 緊張用金具 １１ 構造物 a Cable 1 Sleeve 1a Parallel hole 1b Tapered hole 1c Screw 4a, 4b Filler 5, 6a, 6a, 6b Fixing fitting 9 Tension fitting 11 Structure
Claims (5)
て、スリーブ内に充填材を充填し硬化させてケーブルの
端部にスリーブを定着し、ケーブルを緊張してスリーブ
を定着金具で構造物に定着するケーブル端部定着方法に
おいて、スリーブの基部側に設けた平行孔部の硬化した
充填材でケーブルの引張荷重を受け止めて定着し、スリ
ーブの平行孔部の外端側に連設したテーパー孔部の硬化
した充填材でケーブルの引張荷重を受け止めて定着する
ことを特徴とするケーブル端部定着方法。1. An end of a cable is inserted into a sleeve, a filler is filled in the sleeve and cured to fix the sleeve to the end of the cable, and the cable is tensioned to fix the sleeve with a fixing bracket. In the fixing method of the cable end portion, the cable is fixed by receiving the tensile load of the cable with the hardened filler in the parallel hole provided on the base side of the sleeve and fixed to the outer end side of the parallel hole of the sleeve. A cable end fixing method, wherein a fixing load is received by receiving a tensile load of a cable with a filler having a cured hole.
おいて、スリーブのテーパー孔部の端末側に設けたネジ
部に緊張用金具を連結してケーブルを緊張した後、スリ
ーブを定着金具で構造物に定着することを特徴とするケ
ーブル端部定着方法。2. A cable end fixing method according to claim 1, wherein a tension fitting is connected to a thread provided on a terminal side of the tapered hole of the sleeve to tension the cable, and then the sleeve is formed of a fixing fitting. A fixing method for fixing a cable end to an object.
て、スリーブ内に充填材を充填し硬化させてケーブルの
端部にスリーブを定着し、ケーブルを緊張してスリーブ
を定着金具で構造物に定着したケーブル端部定着構造に
おいて、スリーブの基部側に設け充填して硬化した充填
材でケーブルの端部を受け止めて定着した平行孔部と、
スリーブの平行孔部の外端側に連設し充填して硬化した
充填材でケーブルの端部を受け止めて定着したテーパー
孔部と、ケーブルを緊張してスリーブを構造物に定着し
た定着金具とを具備したことを特徴とするケーブル端部
定着構造。3. An end of the cable is inserted into the sleeve, a filling material is filled in the sleeve and cured, and the sleeve is fixed to the end of the cable. In the cable end fixing structure fixed to the parallel end portion, which is fixed on the base side of the sleeve by receiving and fixing the end of the cable with the filled and cured filler.
A tapered hole portion that is connected to the outer end side of the parallel hole portion of the sleeve and is filled and hardened to receive and fix the end of the cable with a filler, and a fixing bracket that tensions the cable and fixes the sleeve to the structure. A cable end fixing structure comprising:
おいて、少なくともスリーブの外端側に設けたテーパー
孔部に溝群を設けたことを特徴とする繊維複合材ケーブ
ルの端部定着構造。4. The end fixing structure for a fiber composite material cable according to claim 3, wherein a group of grooves is provided in at least a tapered hole provided on an outer end side of the sleeve.
端部定着構造において、スリーブのテーパー孔部の端末
部に緊張用金具を連結するネジ部を設けたことを特徴と
するケーブル端部定着構造。5. The cable end fixing structure according to claim 3 or 4, wherein a screw portion for connecting a tension fitting is provided at a terminal portion of the tapered hole of the sleeve. Fixing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25734996A JPH1082178A (en) | 1996-09-09 | 1996-09-09 | Cable end fixing method and cable end fixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25734996A JPH1082178A (en) | 1996-09-09 | 1996-09-09 | Cable end fixing method and cable end fixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1082178A true JPH1082178A (en) | 1998-03-31 |
Family
ID=17305152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25734996A Pending JPH1082178A (en) | 1996-09-09 | 1996-09-09 | Cable end fixing method and cable end fixing structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1082178A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075779A1 (en) | 2009-12-23 | 2011-06-30 | Geotech Pty Ltd | An anchorage system |
| JP2013011162A (en) * | 2011-04-01 | 2013-01-17 | Komatsu Seiren Co Ltd | Anchorage tool and reinforcement material using the same |
| JP2013011163A (en) * | 2011-04-01 | 2013-01-17 | Komatsu Seiren Co Ltd | Tension member component and tension member using the same |
| JP2013011164A (en) * | 2011-04-01 | 2013-01-17 | Komatsu Seiren Co Ltd | Tension member |
| JP2015040462A (en) * | 2013-08-23 | 2015-03-02 | 積水化学工業株式会社 | Ground anchor and ground anchor method |
| CN104452596A (en) * | 2014-11-22 | 2015-03-25 | 安徽金星预应力工程技术有限公司 | Arc-shaped flat anchorage device for bridge |
| KR102702855B1 (en) * | 2023-10-04 | 2024-09-04 | 주식회사 디에스글로벌이씨엠 | Structural cable system and anchoring structure used therein |
-
1996
- 1996-09-09 JP JP25734996A patent/JPH1082178A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011075779A1 (en) | 2009-12-23 | 2011-06-30 | Geotech Pty Ltd | An anchorage system |
| JP2013515179A (en) * | 2009-12-23 | 2013-05-02 | ジオテック、プロプライエタリー、リミテッド | Fixing system |
| US8991109B2 (en) | 2009-12-23 | 2015-03-31 | Geotech Pty Ltd | Anchorage system |
| JP2015165091A (en) * | 2009-12-23 | 2015-09-17 | ジオテック、プロプライエタリー、リミテッドＧｅｏｔｅｃｈ Ｐｔｙ Ｌｔｄ | Anchorage system |
| EP2516754A4 (en) * | 2009-12-23 | 2015-12-16 | Geotech Pty Ltd | ANCHORING SYSTEM |
| JP2013011162A (en) * | 2011-04-01 | 2013-01-17 | Komatsu Seiren Co Ltd | Anchorage tool and reinforcement material using the same |
| JP2013011163A (en) * | 2011-04-01 | 2013-01-17 | Komatsu Seiren Co Ltd | Tension member component and tension member using the same |
| JP2013011164A (en) * | 2011-04-01 | 2013-01-17 | Komatsu Seiren Co Ltd | Tension member |
| JP2015040462A (en) * | 2013-08-23 | 2015-03-02 | 積水化学工業株式会社 | Ground anchor and ground anchor method |
| CN104452596A (en) * | 2014-11-22 | 2015-03-25 | 安徽金星预应力工程技术有限公司 | Arc-shaped flat anchorage device for bridge |
| KR102702855B1 (en) * | 2023-10-04 | 2024-09-04 | 주식회사 디에스글로벌이씨엠 | Structural cable system and anchoring structure used therein |
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