JPH05230839A - Anchoring part structure of pile head part - Google Patents

Anchoring part structure of pile head part

Info

Publication number
JPH05230839A
JPH05230839A JP2953692A JP2953692A JPH05230839A JP H05230839 A JPH05230839 A JP H05230839A JP 2953692 A JP2953692 A JP 2953692A JP 2953692 A JP2953692 A JP 2953692A JP H05230839 A JPH05230839 A JP H05230839A
Authority
JP
Japan
Prior art keywords
steel
pile
footing
steel pipe
concrete
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.)
Granted
Application number
JP2953692A
Other languages
Japanese (ja)
Other versions
JP2886376B2 (en
Inventor
Shigeru Yoshida
茂 吉田
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.)
TENOTSUKUSU KK
Tenox Corp
Original Assignee
TENOTSUKUSU KK
Tenox Corp
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 TENOTSUKUSU KK, Tenox Corp filed Critical TENOTSUKUSU KK
Priority to JP4029536A priority Critical patent/JP2886376B2/en
Publication of JPH05230839A publication Critical patent/JPH05230839A/en
Application granted granted Critical
Publication of JP2886376B2 publication Critical patent/JP2886376B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE:To reinforce the anchoring parts of steel pipe piles to footing concrete and reduce the size and height of the footing by connecting the pipe head parts of the steel pipe piles by a steel member. CONSTITUTION:Two steel pipe piles 1, 1 are driven into the ground A, at a specified space, and a lid steel plate 2 is fitted to the head part of each steel pipe pile 1. A steel member 3 formed of H-shape steel of high rigidity is then fitted across the pipe head parts of the steel pipe piles 1 by welding or the like, parallel to the lid steel plate 2. Connecting plates 4 are further fitted at specified spaces apart to the upper face of the steel member 3, and this in the state of the pile head parts being connected to each other is buried in footing concrete B. The steel member having large shearing force can thereby bear the shearing force and bending moment acting upon the footing.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は複数本の既製杭、特に
鋼管杭頭部をフーチングコンクリート中に定着する部分
の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 a structure of a plurality of ready-made piles, particularly a portion where a steel pipe pile head is fixed in footing concrete.

【0002】[0002]

【従来技術とこの発明が解決しようとする課題】従来鋼
管杭の頭部をフーチングコンクリートに定着するに際し
ては杭の頭部中空部に鉄筋篭下部を挿入して上部をフー
チング中に埋設する鉄筋篭挿入方法と杭頭にアンカー鉄
筋を溶接し、このアンカー鉄筋使用方法が一般的であ
る。
2. Description of the Related Art When fixing the head of a conventional steel pipe pile to footing concrete, the lower part of the rebar cage is inserted into the hollow part of the head of the pile and the upper part is embedded in the footing. The method of insertion and the method of using this anchor reinforcing bar are generally used by welding the anchor reinforcing bar to the pile head.

【0003】ところで前記鉄筋篭挿入方法では杭の中空
部でずれ止めの溶接作業を行わなければならないので溶
接工の作業環境が好ましくなく、また鉄筋篭では主筋の
配置に制限があるため、水平力が作用したときの杭頭に
発生する大きな曲げモーメントに耐えることができな
い。
By the way, in the above-mentioned method for inserting a reinforcing bar basket, welding work for preventing slippage must be performed in the hollow portion of the pile, so the working environment of the welder is not preferable, and in the reinforcing bar basket, the arrangement of the main bars is limited, so that horizontal force It cannot withstand the large bending moment generated at the pile head when is applied.

【0004】また杭に作用する軸力が大きい場合、フー
チングに生ずる支圧応力が大きくなりフーチング破壊を
起すことがあり、さらに引き抜き力に対する抵抗力が小
さい場合がある。
When the axial force acting on the pile is large, the bearing stress generated in the footing becomes large, which may cause footing failure, and the resistance to the pull-out force may be small.

【0005】また前記アンカー鉄筋使用方法では現場で
の溶接作業が煩雑であり、溶接方法が縦方向となり信頼
性が低い。
Further, in the method of using the anchor rebar, the welding work at the site is complicated, and the welding method is in the vertical direction, and the reliability is low.

【0006】ところで、杭1本に作用する軸力が大きい
場合、フーチングに作用する剪断力や曲げモーメントも
大きくなり、必然的に大断面を必要とし、打設コンクリ
ートが増える。
By the way, when the axial force acting on one pile is large, the shearing force and bending moment acting on the footing also become large, so that a large section is inevitably required, and the pouring concrete increases.

【0007】この発明は前記問題点を解消すべく開発し
たもので、フーチング中の複数の杭頭間を剛性の大きい
鋼材で連結することにより、地震時等の複合荷重に強い
フーチング構造を提供することにある。
The present invention was developed to solve the above problems, and provides a footing structure that is strong against a composite load such as an earthquake by connecting a plurality of pile heads during footing with a steel material having high rigidity. Especially.

【0008】[0008]

【課題を解決するための手段】この発明は、杭頭部の定
着部構造において複数本の杭頭部間を剛性の大きい鋼製
部材で連結した状態でフーチングコンクリートに埋設し
てある。
According to the present invention, a plurality of pile heads in a fixing portion structure for pile heads are embedded in footing concrete with a steel member having high rigidity connected between the pile heads.

【0009】[0009]

【実施例】図1の実施例は2本の鋼管杭1を所定間隔を
もって地盤A中に打込み、この鋼管杭1の頭部には蓋鋼
板2が取付けてあり、この蓋鋼板2には並列して剛性の
高いH形鋼からなる鋼製部材3が溶接等により取付けて
あり、この鋼製部材3により鋼管杭1の杭頭部間を連結
した状態としてあり、この状態でフーチングコンクリー
トB中に埋設してある。
EXAMPLE In the embodiment shown in FIG. 1, two steel pipe piles 1 are driven into the ground A at a predetermined interval, and a steel plate 2 is attached to the head of the steel pipe pile 1. The steel plates 2 are arranged in parallel. Then, a steel member 3 made of H-shaped steel having high rigidity is attached by welding or the like, and the steel pipe 3 is in a state where the pile heads of the steel pipe pile 1 are connected to each other. It is buried in.

【0010】なお並列した鋼製部材3の上面には所定間
隔に連結板4を取付ける。また符号5はフーチングコン
クリートB中に配筋した鉄筋を示している。なお杭とし
ては既製コンクリート杭を使用することもできる。
Connection plates 4 are attached to the upper surfaces of the steel members 3 arranged in parallel at predetermined intervals. Reference numeral 5 indicates a reinforcing bar arranged in footing concrete B. It is also possible to use ready-made concrete piles as the piles.

【0011】図2に示す実施例は杭頭部の側面に厚鋼板
からなる鋼製部材3の端部を溶接して杭頭部間を連結し
た状態としてのフーチングコンクリートB中に埋設して
ある。
In the embodiment shown in FIG. 2, the end of a steel member 3 made of thick steel plate is welded to the side surface of the pile head to be embedded in footing concrete B in a state where the pile heads are connected to each other. .

【0012】図3に示す実施例は4本の鋼管杭1を方形
の隅角部に位置させて地盤A中に打込み、H形鋼からな
る鋼製部材3を井桁状に組合せて杭頭に溶接し、この鋼
製部材3によって杭頭部間を連結した状態にしてフーチ
ングコンクリートB中に埋設してある。
In the embodiment shown in FIG. 3, four steel pipe piles 1 are placed in the corners of a square and driven into the ground A, and steel members 3 made of H-shaped steel are combined in a cross beam shape to form a pile head. It is welded and embedded in footing concrete B with the steel members 3 connecting the pile heads.

【0013】[0013]

【発明の効果】この発明は以上の構成からなり杭頭部間
が剛性の大きい鋼製部材で連結した状態でコンクリート
中に定着しあるので、剪断強度の大きな鋼材がフーチン
グに作用する剪断力を負担し、杭頭モーメントを負担す
るため、フーチングサイズ、フーチング高さを小さくす
ることができる。
EFFECTS OF THE INVENTION Since the present invention has the above-mentioned structure and is fixed in concrete in a state where the heads of the piles are connected by the steel members having high rigidity, the steel material having high shear strength can reduce the shearing force acting on footing. The footing size and footing height can be reduced because the burden and the pile head moment are borne.

【0014】また杭頂部に接続鋼材があるため鉛直力を
確実に杭に伝達し、また引き抜き力、その他曲げ、剪断
等の複合力に対して有効に抵抗し、前記した従来方法の
問題点も解消できる。
Further, since there is a connecting steel material at the top of the pile, the vertical force is reliably transmitted to the pile, and it effectively resists pull-out force, and other combined forces such as bending and shearing. It can be resolved.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の第1実施例で(a) は平面図、(b) は
縦断面図である。
FIG. 1A is a plan view and FIG. 1B is a longitudinal sectional view in a first embodiment of the present invention.

【図2】この発明の第2実施例で(a) は平面図、(b) は
縦断面図である。
2 (a) is a plan view and FIG. 2 (b) is a longitudinal sectional view in a second embodiment of the present invention.

【図3】この発明の第3実施例で(a) は平面図、(b) は
縦断面図である。
3 (a) is a plan view and FIG. 3 (b) is a longitudinal sectional view in a third embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1…鋼管杭、2…蓋鋼板、3…鋼製部材、4…連結板、
5…鉄筋 A…地盤、B…フーチングコンクリート
1 ... steel pipe pile, 2 ... cover steel plate, 3 ... steel member, 4 ... connecting plate,
5 ... Reinforcing bar A ... Ground, B ... Footing concrete

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 複数本の杭頭部間を剛性の大きい鋼製部
材で連結した状態でフーチングコンクリートに埋設して
あることを特徴とする杭頭部の定着部構造。
1. A fixing unit structure for a pile head, wherein a plurality of pile heads are embedded in footing concrete with a steel member having high rigidity connected to each other.
【請求項2】 杭が鋼管杭であり、鋼製部材が形鋼であ
る請求項1記載の杭頭部の定着部構造。
2. The anchoring structure for a pile head according to claim 1, wherein the pile is a steel pipe pile and the steel member is a shaped steel.
JP4029536A 1992-02-17 1992-02-17 Anchor structure of pile head Expired - Fee Related JP2886376B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4029536A JP2886376B2 (en) 1992-02-17 1992-02-17 Anchor structure of pile head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4029536A JP2886376B2 (en) 1992-02-17 1992-02-17 Anchor structure of pile head

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP10163548A Division JP3027741B2 (en) 1998-06-11 1998-06-11 Anchor structure of pile head

Publications (2)

Publication Number Publication Date
JPH05230839A true JPH05230839A (en) 1993-09-07
JP2886376B2 JP2886376B2 (en) 1999-04-26

Family

ID=12278839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4029536A Expired - Fee Related JP2886376B2 (en) 1992-02-17 1992-02-17 Anchor structure of pile head

Country Status (1)

Country Link
JP (1) JP2886376B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015105539A (en) * 2013-11-29 2015-06-08 首都高速道路株式会社 Joining structure between existing column and footing
JP2015196983A (en) * 2014-04-01 2015-11-09 株式会社横河住金ブリッジ Dam body
JP2017122343A (en) * 2016-01-07 2017-07-13 隆幸 瓜生 Precast foundation structure and precast foundation construction method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54139204A (en) * 1978-04-19 1979-10-29 Kubota Ltd Pile foundation
JPS5789027A (en) * 1980-11-20 1982-06-03 Taisei Corp Multipillar type foundation construction method
JPS59106628A (en) * 1982-12-10 1984-06-20 Yasuyuki Yamamoto Foundation work in soft ground containing sludge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54139204A (en) * 1978-04-19 1979-10-29 Kubota Ltd Pile foundation
JPS5789027A (en) * 1980-11-20 1982-06-03 Taisei Corp Multipillar type foundation construction method
JPS59106628A (en) * 1982-12-10 1984-06-20 Yasuyuki Yamamoto Foundation work in soft ground containing sludge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015105539A (en) * 2013-11-29 2015-06-08 首都高速道路株式会社 Joining structure between existing column and footing
JP2015196983A (en) * 2014-04-01 2015-11-09 株式会社横河住金ブリッジ Dam body
JP2017122343A (en) * 2016-01-07 2017-07-13 隆幸 瓜生 Precast foundation structure and precast foundation construction method

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