JPH0629320Y2 - Female corn for fixing PC steel - Google Patents
Female corn for fixing PC steelInfo
- Publication number
- JPH0629320Y2 JPH0629320Y2 JP1988129610U JP12961088U JPH0629320Y2 JP H0629320 Y2 JPH0629320 Y2 JP H0629320Y2 JP 1988129610 U JP1988129610 U JP 1988129610U JP 12961088 U JP12961088 U JP 12961088U JP H0629320 Y2 JPH0629320 Y2 JP H0629320Y2
- Authority
- JP
- Japan
- Prior art keywords
- steel
- bearing plate
- fixing
- steel material
- female cone
- 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 - Fee Related
Links
Landscapes
- Reinforcement Elements For Buildings (AREA)
Description
【考案の詳細な説明】 （考案が属する技術分野） 本考案はＰＣ鋼材の端部をコンクリート部材に定着する
ための雌コーンに関するものである。DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention belongs) The present invention relates to a female cone for fixing an end portion of a PC steel material to a concrete member.
（考案の課題とその特徴点） ポストテンショニング方式でコンクリート部材にプレス
トレスを導入する場合は、コンクリート部材の端部に埋
設した雌コーンに、緊張したＰＣ鋼材の端部を楔で定着
させるが、この雌コーンには既に各種の提案がなされて
いる。(Problems of the invention and its characteristic points) When prestressing is introduced into the concrete member by the post-tensioning method, the tensioned end of the PC steel material is fixed with a wedge to the female cone embedded in the end of the concrete member. , Various proposals have already been made for this female corn.
本考案は、従来例には期待できない後述のような幾多の
利点があるＰＣ鋼材定着用雌コーンを提供することを目
的としているものであって、その構成上の特徴は、実用
新案登録請求の範囲に記載したとおりである。The present invention is intended to provide a female corn for fixing a PC steel material, which has a number of advantages as will be described later, which cannot be expected in a conventional example, and the structural feature thereof is the utility model registration request. As described in the range.
（図面による実施例の説明） 本考案の一実施例を示す第１図，第２図において、雌コ
ーン１の躯体２は円筒状で、その中心部にはＰＣ鋼材を
通す円錐孔３が設けられている。(Explanation of Embodiments by Drawings) In FIGS. 1 and 2 showing an embodiment of the present invention, a skeleton 2 of a female cone 1 has a cylindrical shape, and a conical hole 3 through which a PC steel material is passed is provided in a central portion thereof. Has been.
躯体２の長さ方向中間の外側には矩形で平板状の支圧プ
レート４が突設されており、その突設位置は最大応力度
が生じる位置とするのが好ましい。A rectangular flat plate-shaped bearing plate 4 is provided on the outer side of the middle of the frame 2 in the longitudinal direction, and the protruding position is preferably a position where the maximum stress is generated.
５は支圧プレート４を補強するためにその後側に設けた
スチフナーであり、図の場合は４枚のスチフナーが支圧
プレート４の対角線の位置に設けられている。Reference numeral 5 denotes a stiffener provided on the rear side to reinforce the bearing plate 4, and in the case of the figure, four stiffeners are provided at diagonal positions of the bearing plate 4.
支圧プレート４から突出する躯体２の前端部の外側には
雄ねじ６が設けられ、この雄ねじ６は連続ねじと分割ね
じ（切見ねじ）の何れでもよいが、分割ねじにすると、
小さい回転角度（３分割の場合は60度）で後述のポケッ
トフォーマーの着脱を行うことができる。A male screw 6 is provided on the outer side of the front end of the body 2 protruding from the pressure bearing plate 4, and the male screw 6 may be either a continuous screw or a split screw (cutting screw).
The pocket former described later can be attached and detached with a small rotation angle (60 degrees in the case of three divisions).
７は躯体２の後端の縮径部、８は躯体２の前端部内側に
設けた凹溝、９は支圧プレート４に設けた溝孔であり、
縮径部７の内側には段部10が設けられ、また、縮径部７
の外側は後すぼまりのテーパー面になっている。7 is a reduced diameter portion of the rear end of the frame 2, 8 is a concave groove provided inside the front end of the frame 2, 9 is a slot provided in the bearing plate 4,
A step portion 10 is provided inside the reduced diameter portion 7, and the reduced diameter portion 7
The outside of the is a tapered surface of the rear constriction.
前述の雌コーン１をコンクリート部材の端部に埋設する
ときの状態を示す第３図において、11はポケットフォー
マー、12はねじ棒、13はナット、14は型枠、15はアンポ
ンドＰＣ鋼材、16はシース、17はエンドキヤップであ
り、雌コーン２の雄ねじ６にポケットフォーマー11の先
端部が螺合され、ポケットフォーマー11の先端は支圧プ
レート４の付け根部に圧接され、段部10にはシース16の
先端が当接し、縮径部７の外側にはそのテーパー面に沿
ってエンドキヤップ17の前半部が嵌められている。In FIG. 3 showing a state in which the female cone 1 is embedded in an end portion of a concrete member, 11 is a pocket former, 12 is a screw rod, 13 is a nut, 14 is a formwork, 15 is an ampoule PC steel material, Reference numeral 16 is a sheath, and 17 is an end cap. The tip of the pocket former 11 is screwed into the male screw 6 of the female cone 2, and the tip of the pocket former 11 is pressed against the base portion of the bearing plate 4 to form a stepped portion. A distal end of a sheath 16 abuts on the sheath 10, and a front half portion of an end cap 17 is fitted to the outside of the reduced diameter portion 7 along its tapered surface.
図示のように、ねじ棒12の先端を雌コーン１の凹溝８に
係合させ、ナット13で締め付けて、雌コーン２を型枠14
に固定した状態で、コンクリート部材のコンクリートを
打設し、その硬化後、型枠14を外してアンポンドＰＣ鋼
材15を緊張し、雌コーン１の円錐孔３に楔を打ち込んで
アンポンドＰＣ鋼材15を雌コーン１に定着させるのであ
るが、体２の内部に前方からコンクリートが入るのを防
止し、かつ、アンポンドＰＣ鋼材15の緊張・定着時の作
業空間を形成するための部材であり、また、エンドキヤ
ップ17はコンクリート打設時に躯体２の内部に後方から
コンクリートが入るのを防止するために取り付けられる
ものである。As shown in the drawing, the tip of the screw rod 12 is engaged with the groove 8 of the female cone 1, and the nut 13 is tightened to fix the female cone 2 to the form 14
The concrete of the concrete member is cast in a state of being fixed to, and after hardening, the formwork 14 is removed and the ampoule PC steel material 15 is tensioned. Although it is fixed to the female cone 1, it is a member for preventing concrete from entering the inside of the body 2 from the front and forming a working space for tensioning and fixing the ampoule PC steel material 15. The end cap 17 is attached in order to prevent concrete from entering the inside of the skeleton 2 from the rear when pouring concrete.
第４図に示す実施例は、支圧プレート４を前方に湾曲さ
せた点以外は前述の実施例と同じであり、この実施例の
場合は、支圧プレート４の背面に生じる応力度が緩和さ
れるので、コンクリート部材のコンクリートが低強度の
ときに適している。The embodiment shown in FIG. 4 is the same as the above-mentioned embodiment except that the bearing plate 4 is curved forward. In the case of this embodiment, the stress generated on the back surface of the bearing plate 4 is relaxed. Therefore, it is suitable when the concrete of the concrete member has low strength.
第５図に示す実施例では、支圧プレート４が第３図の場
合と反対側に湾曲しており、この実施例は高強度コンク
リート用であり、これを用いるとＰＣ鋼材の配置間隔を
小さくすることができる。In the embodiment shown in FIG. 5, the bearing plate 4 is curved on the side opposite to that in the case of FIG. 3, and this embodiment is for high-strength concrete. By using this, the arrangement interval of PC steel materials can be reduced. can do.
（考案の効果） 本考案の雌コーンは、以上のようなものであって、支圧
プレートがスチフナー付きであるため、比較的薄くても
大きな力に耐えることができ、躯体の前端部の外周にポ
ケットフォーマー取付け用の雄ねじを設けたので、ポケ
ットフォーマーを簡単に、しかも、安定した状態で取り
付けることができるのみならず、ポケットフォーマーの
前端を支圧プレートに圧接させて螺合部にセメントミル
クが確実に入らないようにすることができ、そのため、
ポケットフォーマーの取り外しが容易であり、躯体の後
端の縮径部の内側にＰＣ鋼材のシースの先端が当接する
段部を設けたので、シースの位置決めに便利であり、縮
径部の外側にテーパー面を形成したので、エンドキヤッ
プの装着が極めて容易である、等の諸効果が期待でき
る。(Effect of the Invention) The female cone of the present invention is as described above, and since the bearing plate has the stiffener, it can withstand a large force even if it is relatively thin, and the outer circumference of the front end of the body Since the male screw for attaching the pocket former is provided on the, the pocket former can be easily and stably attached, and the front end of the pocket former is pressed into contact with the bearing plate to engage the screwed portion. It is possible to ensure that no cement milk gets into the
The pocket former is easy to remove, and the stepped portion with which the tip of the PC steel sheath abuts is provided inside the reduced diameter portion at the rear end of the body, which is convenient for positioning the sheath and outside the reduced diameter portion. Since a tapered surface is formed on the end, various effects such as extremely easy attachment of the end cap can be expected.
第１図は本考案の一実施例の半断面図、第２図は同じく
正面図、第３図は同じく使用態様を示す断面図、第４図
と第５図は本考案の変形例の半断面図である。 １：雌コーン、２：躯体、３：円錐孔、４：支圧プレー
ト、５：スチフナー、６：雄ねじ、７：縮径部、10：段
部、11：ポケットフォーマー、15：アンボンドＰＣ鋼
材、16：シース、17：エンドキヤップ。FIG. 1 is a half sectional view of an embodiment of the present invention, FIG. 2 is a front view of the same, FIG. 3 is a sectional view showing a usage mode, and FIGS. 4 and 5 are half of a modification of the present invention. FIG. 1: Female cone, 2: Body, 3: Conical hole, 4: Bearing plate, 5: Stiffener, 6: Male screw, 7: Reduced diameter portion, 10: Step portion, 11: Pocket former, 15: Unbonded PC steel , 16: sheath, 17: end cap.
フロントページの続き (72)考案者 小村 正雄 東京都台東区台東１丁目２番１号 フドウ 建研株式会社内 (72)考案者 菊池 誠二 東京都台東区台東１丁目２番１号 フドウ 建研株式会社内 (72)考案者 染谷 俊章 東京都台東区台東１丁目２番１号 フドウ 建研株式会社内 (72)考案者 谷松 良雄 東京都台東区台東１丁目２番１号 フドウ 建研株式会社内 (56)参考文献 特開 昭61−169560（ＪＰ，Ａ) 特開 昭61−38041（ＪＰ，Ａ)Front page continued (72) Creator Masao Komura 1-2-1 Taito, Taito-ku, Tokyo Fudou Kenken Co., Ltd. (72) seisei Kikuchi 1-2-1 Taito, Taito-ku, Tokyo Fudou Kenken Co., Ltd. In-house (72) Inventor Toshiaki Someya 1-2-1 Taito, Taito-ku, Tokyo Fudou Kenken Co., Ltd. (72) In-house Yoshio Tanimatsu 1-2-1 Taito, Taito-ku, Tokyo Fudou Kenken Co., Ltd. (56) Reference JP-A-61-169560 (JP, A) JP-A-61-38041 (JP, A)
Claims (1)
筒状の躯体の長さ方向中間部の外側に、後側にスチフナ
ーを付けた支圧プレートを突設するとともに、躯体の前
端部の外側にはポケットフォーマー取付け用の雄ねじを
設け、また、躯体の後端の縮径部には、内側にＰＣ鋼材
のシースの先端が当接するる段部を設け、外側にエンド
キヤップ挿着用のテーパー面を形成したことを特徴とす
るＰＣ鋼材定着用雌コーン。1. A pressure bearing plate having a stiffener attached to the rear side of the cylindrical body having a conical hole through which a PC steel material passes through in the center thereof, and a front end portion of the body. A male screw for attaching a pocket former is provided on the outside of the ED, and a step portion with which the tip of the PC steel sheath abuts is provided on the inside of the reduced diameter part at the rear end of the body, and the end cap is attached on the outside. A female cone for fixing PC steel material, characterized in that a tapered surface of is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129610U JPH0629320Y2 (en) | 1988-10-04 | 1988-10-04 | Female corn for fixing PC steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988129610U JPH0629320Y2 (en) | 1988-10-04 | 1988-10-04 | Female corn for fixing PC steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0251620U JPH0251620U (en) | 1990-04-12 |
| JPH0629320Y2 true JPH0629320Y2 (en) | 1994-08-10 |
Family
ID=31384046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988129610U Expired - Fee Related JPH0629320Y2 (en) | 1988-10-04 | 1988-10-04 | Female corn for fixing PC steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0629320Y2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6138041A (en) * | 1984-07-25 | 1986-02-24 | フレシネ アンテルナシヨナル（エステ−ウ−ペ−） | Apparatus for anchoring prestressed reinforcing member covered with grease |
| CH665444A5 (en) * | 1985-01-17 | 1988-05-13 | Losinger Ag | INTERMEDIATE ANCHOR ARRANGEMENT FOR PRELOADING COMPONENTS PRODUCED IN SEVERAL STAGES, AND A METHOD FOR PRODUCING SUCH AN INTERMEDIATE ANCHOR ARRANGEMENT. |
-
1988
- 1988-10-04 JP JP1988129610U patent/JPH0629320Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0251620U (en) | 1990-04-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |