JPH0544409Y2 - - Google Patents
Info
- Publication number
- JPH0544409Y2 JPH0544409Y2 JP1985155446U JP15544685U JPH0544409Y2 JP H0544409 Y2 JPH0544409 Y2 JP H0544409Y2 JP 1985155446 U JP1985155446 U JP 1985155446U JP 15544685 U JP15544685 U JP 15544685U JP H0544409 Y2 JPH0544409 Y2 JP H0544409Y2
- Authority
- JP
- Japan
- Prior art keywords
- hole
- anchor plate
- cap
- cylindrical cap
- steel bar
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 30
- 239000010959 steel Substances 0.000 claims description 30
- 239000011440 grout Substances 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 10
- 238000004873 anchoring Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims 1
- 239000008267 milk Substances 0.000 description 11
- 210000004080 milk Anatomy 0.000 description 11
- 235000013336 milk Nutrition 0.000 description 11
- 239000004568 cement Substances 0.000 description 10
- 238000002347 injection Methods 0.000 description 7
- 239000007924 injection Substances 0.000 description 7
- 239000004567 concrete Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
Landscapes
- 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、プレストレストコンクリート工法で
用いるPC鋼棒端の定着部の改良に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to an improvement of the anchoring part of the end of a PC steel bar used in the prestressed concrete method.
かかるPC鋼棒はコンクリートを打設したあと
で緊張するものであり、さらにその外側にはシー
スを配設して内部にグラウト材を充填するように
している。
Such a PC steel bar is made to be tensed after concrete is placed, and a sheath is placed on the outside of the bar, and the inside is filled with grout material.
第４図はその従来例を示す縦断側面図で、図中
１は端部外周にネジ１ａを切つたPC鋼棒、２は
中央にテーパー状の孔２ａを形成し、内側にリブ
２ｂを設けたアンカープレート、３は前記アンカ
ープレート２の孔２ａに嵌入する外周形状を有し
PC鋼棒１に螺合するテーパーナツト、４はPC鋼
棒１の外側を覆い端部がアンカープレート２の孔
２ａに内側から入り込むシースである。 Figure 4 is a longitudinal side view showing a conventional example, in which 1 is a PC steel rod with a thread 1a cut on the outer periphery of the end, 2 is a PC steel bar with a tapered hole 2a in the center, and a rib 2b on the inside. The anchor plate 3 has an outer peripheral shape that fits into the hole 2a of the anchor plate 2.
A tapered nut 4 screwed onto the PC steel rod 1 is a sheath that covers the outside of the PC steel rod 1 and whose end part enters the hole 2a of the anchor plate 2 from the inside.
このようにして、コンクリート打設後PC鋼棒
１を緊張し、防錆のためにシース４内にグラウト
材としてのセメントミルクを充填するが、その方
法としてはシース４の端近くを分岐しここに注入
パイプ５及び注出パイプ６を取付けている。すな
わち、注入パイプ５からセメントミルクを注入
し、同時に注出パイプ６から空気が抜かれるが、
該セメントミルクがシース４内にいきわたつたか
否かの確認はパイプ６からセメントミルクが出て
くることによる。 In this way, after placing concrete, the PC steel rod 1 is tensioned and cement milk as a grouting material is filled into the sheath 4 to prevent rust. An injection pipe 5 and an extraction pipe 6 are attached to the pipe. That is, cement milk is injected from the injection pipe 5 and air is removed from the pouring pipe 6 at the same time.
Whether or not the cement milk has spread into the sheath 4 is confirmed by the fact that the cement milk comes out from the pipe 6.
〔考案が解決しようとする課題〕
しかし、このような方法では、アンカープレー
ト２内やその近傍にまで充分セメントミルクが詰
められたか否かを確認することができず、逆に特
にこの部分は空気がこもりやすいので空隙が生じ
やすく、欠陥のできやすいものとなる。[Problem to be solved by the invention] However, with this method, it is not possible to confirm whether cement milk has been sufficiently filled into the anchor plate 2 or its vicinity; Since it is easy to get trapped, voids are likely to occur and defects are likely to occur.
また、アンカープレート２に空気抜き兼充填確
認用の孔を設ける場合もあるが、セメントミルク
はこの孔から周囲に飛び散り見苦しいものとな
る。 In some cases, the anchor plate 2 is provided with a hole for venting air and for confirming filling, but cement milk scatters through the hole and becomes unsightly.
本考案の目的は前記従来例の不都合を解消し、
シース及びアンカープレートの隅々まで確実にグ
ラウト材を充填でき、しかもこのグラウト材を周
囲に飛散させることなく充填確認の処理ができる
PC鋼棒端の定着部を提供することにある。 The purpose of the present invention is to eliminate the disadvantages of the conventional example,
Grout can be reliably filled into every corner of the sheath and anchor plate, and the filling can be confirmed without scattering the grout to the surrounding area.
The purpose is to provide an anchor for the end of a PC steel bar.
本考案は前記目的を達成するため、PC鋼棒端
が突出するアンカープレートと該PC鋼棒突出端
に螺合し、外周が前記アンカープレートに外側か
ら嵌入するテーパーナツトとの組合せによるPC
鋼棒と定着部において、このアンカープレートと
テーパーナツト間には一部透孔を形成し、一方、
一端が閉塞し、他端が開口する筒型形状で、閉塞
側の中央に前記PC鋼棒の径よりも僅かに大きい
穴を形成し、該穴の近傍に継手口を形成し、また
反対側の開口端にはフランジを縁設した筒状キヤ
ツプで、該筒状キヤツプのフランジとの間にリン
グ状のゴムパツキンを介在してアンカープレート
の外側面に当接し、前記PC鋼棒がキヤツプの中
央を貫通し、穴から端部が突出するとともに該突
出部にゴムパツキンを嵌めてかつナツトで締付
け、この締付押圧力で前記フランジを密着させて
この筒状キヤツプが前記テーパーナツトの外側を
水密に覆い、該筒状キヤツプの継手口にグラウト
材の流通パイプを連結したことを要旨とするもの
である。
In order to achieve the above-mentioned object, the present invention uses a PC steel rod in combination with an anchor plate from which the end of the PC steel bar protrudes, and a tapered nut that is screwed onto the protruding end of the PC steel bar and whose outer periphery fits into the anchor plate from the outside.
In the steel rod and anchorage part, a through hole is formed between the anchor plate and the tapered nut, and on the other hand,
It has a cylindrical shape with one end closed and the other open, with a hole slightly larger than the diameter of the PC steel bar formed in the center of the closed side, a joint opening near the hole, and a joint opening on the opposite side. A cylindrical cap is provided with a flange at the open end of the cylindrical cap, and a ring-shaped rubber gasket is interposed between the flange of the cylindrical cap and the anchor plate is in contact with the outer surface of the anchor plate. The end portion protrudes from the hole, and a rubber gasket is fitted into the protruding portion and tightened with a nut, and the flange is brought into close contact with the tightening pressure, so that the cylindrical cap makes the outside of the taper nut watertight. The gist is that a grout distribution pipe is connected to the joint opening of the cylindrical cap.
本考案によれば、シース内に注入されたグラウ
ト材は、これが一杯になつた場合はテーパーナツ
トとアンカープレートの間の透孔を通過して筒状
キヤツプに入り、この内部を充填してパイプから
出てくるのでこれにより充填の確認ができる。
According to the present invention, when the grout material injected into the sheath is full, it passes through the through hole between the taper nut and the anchor plate, enters the cylindrical cap, fills the inside of the cap, and connects the pipe. This will allow you to confirm that it has been filled.
また、グラウト材の注入の場合にもパイプから
まずキヤツプ内に注入し、この内部を満した後に
前記透孔を通してシース内に注ぎ込むことがで
き、このようにすれば注入側の定着部の充填もれ
も防ぐことができる。 Also, when injecting grout material, it is possible to first inject it into the cap from the pipe, fill the interior, and then pour it into the sheath through the through hole. In this way, the fixing part on the injection side can also be filled. This can also be prevented.
しかも、筒状キヤツプはフランジにリング上の
ゴムパツキンを介在して、アンカープレートの外
側を水密に覆うので、筒状キヤツプからの横もれ
を防ぐことができる。 Moreover, since the cylindrical cap has a ring-like rubber gasket interposed in the flange to cover the outside of the anchor plate in a watertight manner, side leakage from the cylindrical cap can be prevented.
さらに、筒状キヤツプ等は使用後取外して転用
でき、安価ですむものである。 Furthermore, the cylindrical cap etc. can be removed after use and used for other purposes, and is inexpensive.
以下、図面について本考案の実施例を詳細に説
明する。
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本考案のPC鋼棒端の定着部の実施例
を示す縦断側面図、第２図は同上要部の縦断側面
図、第３図はアンカープレートの正面図で、前記
従来例を示す第４図と同一構成要素には同一参照
番号を付したものである。 Fig. 1 is a longitudinal sectional side view showing an embodiment of the fixing part of the end of a PC steel bar according to the present invention, Fig. 2 is a longitudinal sectional side view of the main part of the same, and Fig. 3 is a front view of the anchor plate, which is similar to the conventional example. Components that are the same as those shown in FIG. 4 are given the same reference numerals.
すなわち、PC鋼棒１の端にはネジ１ａが切ら
れ、この部分はアンカープレート２から孔２ａを
介して突出するとともにテーパーナツト３が螺合
され、また該PC鋼棒１の外側にはシース４が配
設されその端はアンカープレート２の孔２ａ内に
内側から入り込んでいる点は前記従来例と同じで
ある。 That is, a thread 1a is cut at the end of the PC steel bar 1, and this part protrudes from the anchor plate 2 through a hole 2a, and a taper nut 3 is screwed into the end. 4 is disposed and its end enters the hole 2a of the anchor plate 2 from the inside, which is the same as in the conventional example.
前記孔２ａはその一部を小径の溝状に広げてテ
ーパーナツト３のテーパー部がこの孔２ａに嵌入
した際に透孔７が形成されるようになつている。 A portion of the hole 2a is widened into a small diameter groove so that a through hole 7 is formed when the tapered portion of the taper nut 3 is fitted into the hole 2a.
図中８は鋼製の筒状キヤツプで、一端が閉塞し
てその中央には前記PC鋼棒１の径よりも僅かに
大きい穴８ａを形成し、また反対側の開口端には
フランジ８ｂを設けた。さらに、前記穴８ａの近
傍にはパイプの継手口８ｃを形成する。 In the figure, reference numeral 8 denotes a cylindrical cap made of steel, with one end closed and a hole 8a slightly larger than the diameter of the PC steel rod 1 formed in the center, and a flange 8b at the open end on the opposite side. Established. Further, a pipe joint opening 8c is formed near the hole 8a.
この筒状キヤツプ８のフランジ８ｂを間にリン
グ状のゴムパツキン９を介在させて、アンカープ
レート２の外側面に当接させ、その際、PC鋼棒
１がキヤツプ８の中央を貫通し、穴８ａから端部
が突出するとともに該突出部にゴムパツキン１０
及び座金１１を嵌めてさらにナツト１２で締付
け、この締付押圧力で前記フランジ８ｂを密着さ
せるようにした。このようにして、キヤツプ８で
ナツト３の外側を水密に覆い、その継手口８ｃに
はグラウト材が流通する注入パイプ１３を接続す
る。 The flange 8b of this cylindrical cap 8 is brought into contact with the outer surface of the anchor plate 2 with a ring-shaped rubber gasket 9 interposed therebetween, and at this time, the PC steel rod 1 passes through the center of the cap 8, and the hole 8a An end portion protrudes from the top and a rubber gasket 10 is attached to the protruding portion.
Then, the washer 11 was fitted and further tightened with the nut 12, and the flange 8b was brought into close contact with the tightening force. In this way, the outside of the nut 3 is watertightly covered with the cap 8, and the injection pipe 13 through which the grout material flows is connected to the joint port 8c.
なお、このようなアンカープレート２の外側で
の筒状キヤツプ８の設置はグラウト材の流出側の
みでもよいが、第１図に示すようにPC鋼棒１の
両方の定着部に設けることができる。 Note that such cylindrical caps 8 may be installed on the outside of the anchor plate 2 only on the outflow side of the grout material, but as shown in FIG. .
次に使用法について説明すると、両方の定着部
に本考案を用いた場合は、一方の筒状キヤツプ８
に取付けたパイプ１３をグラウト材の注入用とし
てここからセメントミルクを圧入すると、該セメ
ントミルクはキヤツプ８内を満たした後にアンカ
ープレート２の透孔７を通過してシース４内に入
る。同時にシース４内の空気は他端のアンカープ
レート２の透孔７及びキヤツプ８を通過してパイ
プ１３から排出される。 Next, to explain how to use it, if the present invention is used for both fixing units, one cylindrical cap 8
When cement milk is forced into the pipe 13 attached to the pipe 13 for injecting grout, the cement milk fills the inside of the cap 8 and then passes through the through hole 7 of the anchor plate 2 and enters the sheath 4. At the same time, the air inside the sheath 4 passes through the through hole 7 of the anchor plate 2 at the other end and the cap 8 and is discharged from the pipe 13.
このようにしてシース４内がセメントミルクで
一杯になると、さらに透孔７を介して他方のキヤ
ツプ８内にこれが入り、ここに満したのちパイプ
１３がグラウト材排出用として作用し、ここから
セメントミルクが流れ出すのでシース４内の充填
の確認ができる。 When the inside of the sheath 4 is filled with cement milk in this way, it enters the other cap 8 through the through hole 7, and after filling this, the pipe 13 acts as a outlet for grout material, and from there the cement milk is filled. Since milk flows out, it is possible to check whether the sheath 4 is filled.
かかるグラウト材の充填作業が終了いたなら
ば、グラウト材の硬化を待つて、ナツト１２をゆ
るめてキヤツプ８を取外し、再度使用すればよ
い。このキヤツプ８の取外しはコンクリートの箱
抜き部から行う。 When the grout filling operation is completed, wait for the grout to harden, loosen the nut 12, remove the cap 8, and use it again. This cap 8 is removed from the concrete box cutout.
また、前記キヤツプ８はこれを一方のみの定着
部、すなわちグラウト材の流出側のみに設けるこ
とも可能である。この場合は流入側は従来例と同
じ分岐された注入口を有するシース４を用いるこ
とになる。 It is also possible to provide the cap 8 only on one fixing section, that is, only on the outflow side of the grout material. In this case, the sheath 4 having the same branched injection port as in the conventional example is used on the inflow side.
以上述べたように、本考案のPC鋼棒端の定着
部は、PC鋼棒端が突出するアンカープレートと
該PC鋼棒突出端に螺合し、外周が前記アンカー
プレートに外側から嵌入するテーパーナツトとの
組合せによるPC鋼棒の定着部において、シース
内にグラウト材を充填するのに隅々まで確実に注
入することができ、しかもこのように一杯に注入
されたか否かの確認は排出されてくるグラウト材
を周囲に飛散させることなく行え、作業の時間の
短縮と施工精度の向上を達成できるものである。
As described above, the fixing part of the PC steel bar end of the present invention has a tapered shape that is screwed into the anchor plate from which the PC steel bar end projects and the protruding end of the PC steel bar, and whose outer periphery fits into the anchor plate from the outside. At the fixing part of the PC steel bar in combination with a nut, it is possible to reliably inject grout into every corner of the sheath, and there is no need to check whether it has been completely filled or not. This can be done without scattering the grout material around, reducing work time and improving construction accuracy.
第１図は本考案のPC鋼棒端の定着部の実施例
を示す縦断側面図、第２図は同上要部の縦断側面
図、第３図はアンカープレートの正面図、第４図
は従来例を示す縦断側面図である。
１……PC鋼棒、１ａ……ネジ部、２……アン
カープレート、２ａ……テーパー状の孔、２ｂ…
…リブ、３……テーパーナツト、４……シース、
５……注入パイプ、６……注出パイプ、７……透
孔、８……筒状キヤツプ、８ａ……穴、８ｂ……
フランジ、８ｃ……継手口、９，１０……ゴムパ
ツキン、１１……座金、１２……ナツト、１３…
…注入パイプ。
Fig. 1 is a longitudinal side view showing an embodiment of the anchoring part of the end of a PC steel bar according to the present invention, Fig. 2 is a longitudinal side view of the main part of the same, Fig. 3 is a front view of the anchor plate, and Fig. 4 is a conventional one. It is a longitudinal side view which shows an example. 1...PC steel bar, 1a...threaded part, 2...anchor plate, 2a...tapered hole, 2b...
...rib, 3...taper nut, 4...sheath,
5... Injection pipe, 6... Output pipe, 7... Through hole, 8... Cylindrical cap, 8a... Hole, 8b...
Flange, 8c...Joint port, 9, 10...Rubber seal, 11...Washer, 12...Nut, 13...
...Injection pipe.
Claims (1)
鋼棒突出端に螺合し、外周が前記アンカープレー
トに外側から嵌入するテーパーナツトとの組合せ
によるPC鋼棒の定着部において、このアンカー
プレートとテーパーナツト間には一部透孔を形成
し、一方、一端が閉塞し、他端が開口する筒型形
状で、閉塞側の中央に前記PC鋼棒の径よりも僅
かに大きい穴を形成し、該穴の近傍に継手口を形
成し、また反対側の開口端にはフランジを縁設し
た筒状キヤツプで、該筒状キヤツプのフランジと
の間にリング状のゴムパツキンを介在してアンカ
ープレートの外側面に当接し、前記PC鋼棒がキ
ヤツプの中央を貫通し、穴から端部が突出すると
ともに該突出部にゴムパツキンを嵌めてかつナツ
トで締付け、この締付押圧力で前記フランジを密
着させてこの筒状キヤツプが前記テーパーナツト
の外側を水密に覆い、該筒状キヤツプの継手口に
グラウト材の流通パイプを連結したことを特徴と
するPC鋼棒端の定着部。 Anchor plate with protruding PC steel rod end and the PC
At the fixing part of the PC steel bar in combination with a taper nut that is screwed onto the protruding end of the steel bar and whose outer periphery fits into the anchor plate from the outside, a part of the through hole is formed between the anchor plate and the taper nut, On the other hand, it has a cylindrical shape with one end closed and the other end open, and a hole slightly larger than the diameter of the PC steel bar is formed in the center of the closed side, and a joint opening is formed near the hole. A cylindrical cap with a flange is provided at the opposite open end, and a ring-shaped rubber packing is interposed between the flange of the cylindrical cap and the cap contacts the outer surface of the anchor plate, and the PC steel rod is attached to the cap. The cylindrical cap penetrates through the center of the hole, and the end protrudes from the hole, and a rubber gasket is fitted into the protruding part and tightened with a nut.The tightening force causes the flange to come into close contact with the cylindrical cap, and the cylindrical cap covers the outside of the taper nut. An anchoring section for the end of a PC steel bar, characterized in that it is covered watertight and a distribution pipe of grout material is connected to the joint opening of the cylindrical cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985155446U JPH0544409Y2 (en) | 1985-10-11 | 1985-10-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985155446U JPH0544409Y2 (en) | 1985-10-11 | 1985-10-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6263317U JPS6263317U (en) | 1987-04-20 |
| JPH0544409Y2 true JPH0544409Y2 (en) | 1993-11-11 |
Family
ID=31076159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985155446U Expired - Lifetime JPH0544409Y2 (en) | 1985-10-11 | 1985-10-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0544409Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0725364Y2 (en) * | 1989-03-10 | 1995-06-07 | 建設基礎エンジニアリング株式会社 | PC steel material fixing tool |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS587053A (en) * | 1981-06-09 | 1983-01-14 | フレシネ・アンテルナシヨナル（エス・テ−・ウ−・ペ−） | Apparatus for applying tension force to prestressed bar and determination of tension force |
| JPS5932684U (en) * | 1982-08-26 | 1984-02-29 | 株式会社東芝 | washing machine packing equipment |
-
1985
- 1985-10-11 JP JP1985155446U patent/JPH0544409Y2/ja not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS587053A (en) * | 1981-06-09 | 1983-01-14 | フレシネ・アンテルナシヨナル（エス・テ−・ウ−・ペ−） | Apparatus for applying tension force to prestressed bar and determination of tension force |
| JPS5932684U (en) * | 1982-08-26 | 1984-02-29 | 株式会社東芝 | washing machine packing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6263317U (en) | 1987-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0544409Y2 (en) | ||
| JPS5831927Y2 (en) | Anchor bolt waterproofing device | |
| JPS5922180Y2 (en) | Concrete formwork spacing device | |
| JP2514126Y2 (en) | Water-blocking joint device for concrete block | |
| JP2587031B2 (en) | Re-tension ground anchor head | |
| JPH0336587Y2 (en) | ||
| JP3405441B2 (en) | Liquid leakage prevention cap | |
| JPH06136841A (en) | Joint method for concrete block nd concrete block used for the method, and molding device for forming joint recess section of the concrete block | |
| JPH03426Y2 (en) | ||
| JPH0741762Y2 (en) | Inserts and bolts for mounting inserts | |
| JPH03477Y2 (en) | ||
| JPH0430281Y2 (en) | ||
| JPS5932684Y2 (en) | Grout cap for anchorage in prestressed concrete construction | |
| JPH0781280B2 (en) | Water-stopping method and water-stopping metal fittings in the openings of underground structures of buildings | |
| JPS5935693Y2 (en) | Fixing body for PC steel materials | |
| JPH0411113A (en) | Center-core type removal anchoring process | |
| JPH0430288Y2 (en) | ||
| JPH0248555Y2 (en) | ||
| JPS6240495B2 (en) | ||
| JPS6343308Y2 (en) | ||
| JPH0426571Y2 (en) | ||
| JPH04261911A (en) | Structure of anchor head, etc. | |
| JPH0635414U (en) | Concrete block with waterproof joint | |
| JP3506983B2 (en) | Concrete wall construction method | |
| JPH04169699A (en) | Grout hole for concrete segment |