JPH0549765B2 - - Google Patents

Info

Publication number
JPH0549765B2
JPH0549765B2 JP15503985A JP15503985A JPH0549765B2 JP H0549765 B2 JPH0549765 B2 JP H0549765B2 JP 15503985 A JP15503985 A JP 15503985A JP 15503985 A JP15503985 A JP 15503985A JP H0549765 B2 JPH0549765 B2 JP H0549765B2
Authority
JP
Japan
Prior art keywords
protruding
bolt
plate
outer cylinder
cylindrical body
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
Application number
JP15503985A
Other languages
Japanese (ja)
Other versions
JPS6217228A (en
Inventor
Osamu Watanabe
Masakazu Uchida
Ikuo Yanajima
Akira Sogo
Akira Ooshima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Concrete Industries Co Ltd
Original Assignee
Nippon Concrete Industries Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Concrete Industries Co Ltd filed Critical Nippon Concrete Industries Co Ltd
Priority to JP15503985A priority Critical patent/JPS6217228A/en
Publication of JPS6217228A publication Critical patent/JPS6217228A/en
Publication of JPH0549765B2 publication Critical patent/JPH0549765B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 産業上の利用分野 本発明はPRC杭、特に補強用の異形鉄筋(補
強鉄筋)を端板から突出せしめたものの、または
端板にフーチングとの連結用の鉄筋を突出させて
固定した杭等の吊りヤツトコに関するものであ
る。
[Detailed Description of the Invention] Industrial Application Field The present invention relates to PRC piles, particularly PRC piles in which deformed reinforcing bars (reinforcement bars) for reinforcement protrude from end plates, or reinforcing bars for connection with footings protrude from end plates. This relates to a hanging device such as a stake fixed in place.

従来の技術 現在のPRC杭(PC杭の弱い靱性を強化するた
めにPC鋼材間に補強鉄筋を配したもの)は一般
に第3図に示すごとく、補強鉄筋1の上端までコ
ンクリートにおおわれている。その理由は施工法
が打撃又は中掘工法により行なわれているためで
ある。そのため第4図に示すような施工手順によ
り設計上必要な長さLの補強鉄筋をハツリ出して
フーチングの立上げを行つており、非常に無駄な
構造となつている。
Conventional technology Current PRC piles (reinforcing bars are placed between the prestressing steel members to strengthen the weak toughness of prestressed concrete piles) are generally covered with concrete up to the top of the reinforcing bars 1, as shown in Figure 3. The reason for this is that the construction method is the hammering or hollow digging method. Therefore, according to the construction procedure shown in FIG. 4, reinforcing reinforcing bars with a design-required length L are chipped out and the footings are erected, resulting in a very wasteful structure.

本特許出願人は先に特願昭60−72204号におい
て予め補強鉄筋を突出させて成形したPRC杭と
その沈設用キヤツプについて提案しているが、該
沈設用キヤツプは補強鉄筋の突出端を避けて
PRC杭を押圧沈下させるものであつてPRC杭を
吊り上げることができないので、中掘工法等にお
いてコンクリート杭が掘削孔内に落り込み施工が
困難となる場合がある。
The applicant of this patent previously proposed in Japanese Patent Application No. 1983-72204 a PRC pile formed with reinforcing reinforcing bars protruding in advance and a cap for sinking the pile, but the cap for sinking avoids the protruding ends of the reinforcing bars. hand
Since the PRC pile is pressed down and cannot be lifted, the concrete pile may fall into the excavation hole in the medium excavation method etc., making construction difficult.

発明が解決しようとする問題点 このように従来技術では突出補強鉄筋を有する
PRC杭等において杭のチヤツキング可能な技術
が開発されていないので中掘工法等の安全確実な
施工ができないという問題点があつた。
Problems to be Solved by the Invention In this way, the conventional technology has protruding reinforcing bars.
There was a problem in that safe and reliable construction such as the hollow excavation method was not possible because a technology capable of checking the piles for PRC piles, etc., had not been developed.

問題点を解決するための手段 本発明のPRC杭等用の吊りヤツトコは上記問
題点を解決するための手段として次の構成を備え
ている。
Means for Solving the Problems The hanging rod for PRC piles, etc. of the present invention has the following configuration as a means for solving the above problems.

(1) 適数の鉄筋を端部に突出させている杭に該突
出鉄筋を貫通させて載置する筒状体を設けると
ともに、該筒状体の頭板に係合する適数の外筒
を設け、該外筒内には前記突出鉄筋の端部を把
持緊締するチヤツクと緊締用のボルトナツトと
を各設けたこと。
(1) A cylindrical body is provided on a pile with an appropriate number of reinforcing bars protruding from the end thereof, and the protruding reinforcing bars are passed through and placed on the pile, and an appropriate number of outer cylinders are engaged with the head plate of the cylindrical body. A chuck for gripping and tightening the end of the protruding reinforcing bar and a tightening bolt nut are provided in the outer cylinder.

(2) 前記筒状体が外板と内板の各上端および下端
に環状の頭板および座板を各固定した中空構造
よりなり、該頭板には前記外筒の係合孔をまた
該座板には突出鉄筋の貫通孔を各設けたこと。
(2) The cylindrical body has a hollow structure in which an annular head plate and a seat plate are fixed to the upper and lower ends of an outer plate and an inner plate, respectively, and the head plate is provided with an engagement hole of the outer cylinder. Each seat plate has through holes for protruding reinforcing bars.

(3) 前記チヤツクの一端には突出鉄筋を支持する
中心穴の外側に割目を有するテーパー肉厚部を
形成し、他端にはボルトを頭部により係止して
支持し、かつ前記外筒には該ボルトの貫通孔を
設けて貫通突出したボルトをナツトにより外筒
に締着するようにしたこと。
(3) One end of the chuck is formed with a tapered thick part having a split on the outside of the central hole that supports the protruding reinforcing bar, and the other end is provided with a bolt that is latched and supported by the head, and the outside of the chuck is The cylinder is provided with a through hole for the bolt, and the bolt protruding through the cylinder is fastened to the outer cylinder with a nut.

作 用 本発明はナツトによりボルトを締着するとチヤ
ツクのテーパー肉厚部の外周が外筒の内周に接衝
して縮小するので中心穴により突出鉄筋を確実に
把握し緊張することができ、またナツトを緩める
と容易に前記鉄筋を解放することができる。
Function: When a bolt is tightened with a nut, the outer periphery of the tapered thick part of the chuck contacts the inner periphery of the outer cylinder and shrinks, so the protruding reinforcing bar can be reliably grasped and tensioned through the center hole. Further, the reinforcing bar can be easily released by loosening the nut.

実施例 第1図、第2図は本発明実施の1例を示すもの
で、補強鉄筋1を貫通させる筒状体2は外板2
a、内板2b、頭板2c、座板2dにより中空構
造に形成せられ、頭板2cには外筒3の係合孔2
e(長孔)、座板2dには補強筋1の貫通孔(長
孔)2fが設けられる。頭板2cと係合する外筒
3内には摺動自在なチヤツク4が設けられ、該チ
ヤツク4の一端には補強鉄筋1を支持する中心穴
4aがあり、その外側には割目を有するテーパー
肉厚部4bが設けられ、また他端にはボルト5を
その頭部を係止して支持している。したがつて第
2図Aにおいてナツト6を締着すると一点鎖線で
示すようにチヤツク4が移動変形して補強鉄筋1
を完全に把持することができる。
Embodiment FIGS. 1 and 2 show an example of implementing the present invention, in which the cylindrical body 2 through which the reinforcing reinforcing bar 1 is passed is the outer plate 2.
a, the inner plate 2b, the head plate 2c, and the seat plate 2d form a hollow structure, and the head plate 2c has an engagement hole 2 for the outer cylinder 3.
e (elongated hole), a through hole (elongated hole) 2f for the reinforcing bar 1 is provided in the seat plate 2d. A slidable chuck 4 is provided inside the outer cylinder 3 that engages with the head plate 2c, and one end of the chuck 4 has a center hole 4a that supports the reinforcing steel 1, and has a split on the outside thereof. A tapered thick portion 4b is provided, and a bolt 5 is supported by locking its head at the other end. Therefore, when the nut 6 is tightened in FIG.
can be grasped completely.

なお、本発明は上記実施例の外、端板にフーチ
ングとの連結鉄筋を固定して設けた杭等にも応用
できるものである。
In addition to the above-mentioned embodiments, the present invention can also be applied to piles in which reinforcing bars connecting to footings are fixed to the end plates.

発明の効果 (1) 構造が簡単、かつ取付け取外しが確実であ
る。
Effects of the invention (1) The structure is simple and the installation and removal are reliable.

(2) 突出鉄筋の突出長が変化しても確実に連続す
ることができる。
(2) Even if the protruding length of the protruding reinforcing bars changes, the continuity can be ensured.

(3) 杭径が同じならば、突出鉄筋の本数の変化は
貫通孔2e(長孔)により対応でき、鉄筋径の
変化についてはチヤツク4部の交換で容易に対
応できる。
(3) If the pile diameter is the same, changes in the number of protruding reinforcing bars can be accommodated by the through holes 2e (elongated holes), and changes in the reinforcing bar diameter can be easily accommodated by replacing the four chucks.

(4) 本装置の採用により従来のハツリ工程が省略
されて施工が著しく容易になる。
(4) By adopting this device, the conventional chiseling process is omitted, making construction much easier.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明実施の1例を示す平面図A、一
部切断正面図B、A−A断面図C、第2図は同じ
く要部を拡大して示す断面図A、底面図Bであ
り、第3図は従来例を示す断面図、第4図は同じ
く施工手順を示す説明図である。図中の符号はそ
れぞれ下記部材を示す。 1……補強鉄筋、2……筒状体、3……外筒、
4……チヤツク、5……ボルト、6……ナツト。
Fig. 1 is a plan view A, a partially cutaway front view B, and an A-A sectional view C showing an example of the implementation of the present invention, and Fig. 2 is a sectional view A showing an enlarged view of the main part, and a bottom view B. 3 is a sectional view showing a conventional example, and FIG. 4 is an explanatory view showing the construction procedure. The symbols in the drawings indicate the following members, respectively. 1... Reinforcement reinforcing bar, 2... Cylindrical body, 3... Outer cylinder,
4...Chuck, 5...Boruto, 6...Natsuto.

Claims (1)

【特許請求の範囲】 1 適数の鉄筋を端部に突出させている杭に該突
出鉄筋を貫通させてい載置する筒状体を設けると
ともに、該筒状体の頭板に係合する適数の外筒を
設け、該外筒内には前記突出鉄筋の端部を把持緊
締するチヤツクと緊締用のボルトナツトとを各設
けたことを特徴とするPRC杭等用の吊りヤツト
コ。 2 前記筒状体が外板と内板び各上端および下端
に環状の頭板および座板を各固定した中空構造よ
りなり、該頭板には前記外筒の係合孔をまた該座
板には突出鉄筋の貫通孔を各設けたことを特徴と
する特許請求の範囲第1項に記載のPRC杭等用
の吊りヤツトコ。 3 前記チヤツクの一端には突出鉄筋を支持する
中心穴の外側に割目を有するテーパー肉厚部を形
成し、他端にはボルトを頭部により係止して支持
し、かつ前記外筒には該ボルトの貫通孔を設けて
貫通突出したボルトをナツトにより外筒に締着す
るようにしたことを特徴とする特許請求の範囲第
1項に記載のPRC杭等用の吊りヤツトコ。
[Scope of Claims] 1. A pile having an appropriate number of reinforcing bars protruding from its end is provided with a cylindrical body on which the protruding reinforcing bars pass through and are placed thereon, and a suitable cylindrical body is provided to engage with the head plate of the cylindrical body. A hanging rod for a PRC pile, etc., characterized in that a plurality of outer cylinders are provided, and a chuck for gripping and tightening the end of the protruding reinforcing bar and a bolt nut for tightening are provided in the outer cylinder. 2. The cylindrical body has a hollow structure in which an annular head plate and a seat plate are fixed to the upper and lower ends of an outer plate and an inner plate, respectively, and the head plate has an engagement hole of the outer cylinder and a seat plate. A hanging rod for a PRC pile or the like according to claim 1, characterized in that each of the holes is provided with a through hole for a protruding reinforcing bar. 3 At one end of the chuck, a tapered thick part having a split is formed on the outside of a central hole that supports a protruding reinforcing bar, and at the other end, a bolt is retained and supported by the head, and is attached to the outer cylinder. A hanging rod for a PRC pile or the like according to claim 1, wherein a through hole is provided for the bolt and the bolt protruding through the bolt is fastened to the outer cylinder with a nut.
JP15503985A 1985-07-16 1985-07-16 Suspending tongs for prc-like pile Granted JPS6217228A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15503985A JPS6217228A (en) 1985-07-16 1985-07-16 Suspending tongs for prc-like pile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15503985A JPS6217228A (en) 1985-07-16 1985-07-16 Suspending tongs for prc-like pile

Publications (2)

Publication Number Publication Date
JPS6217228A JPS6217228A (en) 1987-01-26
JPH0549765B2 true JPH0549765B2 (en) 1993-07-27

Family

ID=15597332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15503985A Granted JPS6217228A (en) 1985-07-16 1985-07-16 Suspending tongs for prc-like pile

Country Status (1)

Country Link
JP (1) JPS6217228A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5111291B2 (en) * 2008-08-13 2013-01-09 日本コンクリート工業株式会社 Pile construction equipment
JP5775750B2 (en) * 2011-06-13 2015-09-09 前田製品販売株式会社 Steel pipe concrete composite pile
JP6006004B2 (en) * 2012-06-05 2016-10-12 株式会社トーヨーアサノ Pile head space formation auxiliary tool, hollow ready-made pile provided with the same, pile head processing method using the hollow ready-made pile, and pile head space forming method

Also Published As

Publication number Publication date
JPS6217228A (en) 1987-01-26

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