JP4319764B2 - Pile head processing method - Google Patents
Pile head processing method Download PDFInfo
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- JP4319764B2 JP4319764B2 JP2000103947A JP2000103947A JP4319764B2 JP 4319764 B2 JP4319764 B2 JP 4319764B2 JP 2000103947 A JP2000103947 A JP 2000103947A JP 2000103947 A JP2000103947 A JP 2000103947A JP 4319764 B2 JP4319764 B2 JP 4319764B2
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- Prior art keywords
- pile
- pile head
- processing method
- superstructure
- head processing
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Description
【０００１】
【発明の属する技術分野】
本発明は、杭頭処理方法に関するものである。
【０００２】
【従来の技術】
杭と上部構造物を接続する従来の杭頭処理方法に、杭頭を剛結合とするために上部構造物内に杭径程度埋め込む方法がある。この場合、上部工の下筋が杭と干渉するため以下の方法で結合部を補強する。
＜イ＞杭頭周辺に開口部補強鉄筋を配置する方法。
＜ロ＞杭を打設した現地で杭頭にプレートを溶接して取り付け、プレートに上部構造物の鉄筋を溶接する方法。
【０００３】
【本発明が解決しようとする課題】
前記した従来の杭頭処理方法にあっては、次のような問題点がある。
＜イ＞開口部補強鉄筋による方法では局部的に鉄筋量が増える。このため、限られた空間内に多くの鉄筋を配置する必要がある。この結果、密に配置された鉄筋の間にコンクリートを充填するための対策が必要となる。
＜ロ＞プレートを使用する場合は、施工現場で杭頭とプレート、プレートと鉄筋の溶接をおこなう。このため、施工効率、溶接の信頼性、費用等の点で問題になる場合がある。
【０００４】
【本発明の目的】
本発明は上記したような従来の問題を解決するためになされたもので、容易で品質の高い杭頭処理方法を提供することを目的とする。
【０００５】
【課題を解決するための手段】
上記のような目的を達成するために、本発明の杭頭処理方法は、杭頭と上部構造物を接続する杭頭処理方法において、杭の上端から所定の距離の杭周に支持材を取り付けた杭を打設し、内径が杭の外径よりも大きい環状板に、杭に接続する上部構造物用の鉄筋を予め溶接して取り付けた杭頭処理材を杭頭から挿入し、前記支持材の上に杭頭処理材を設置し、上部構造物用のコンクリートを打設することによって、杭と杭頭処理材と上部構造物とを一体化させることを特徴としたものである。
【０００６】
【本発明の実施の形態】
以下図面を参照しながら本発明の実施の形態について説明する。
【０００７】
＜イ＞杭頭処理材
杭頭処理材３は、環状板１と上部構造物用の鉄筋２から構成される。
環状板１は、杭４の外径より大きな内径を有する環状の鋼板である。
環状板１は、杭頭周辺の開口部を補強するために使用される。
環状板間の鉄筋２は杭頭間に構築する上部構造物の下部鉄筋となる。
鉄筋２は環状板１に溶接で固定する。
【０００８】
＜ロ＞杭
杭４は、海中等に打設する鋼管杭、コンクリート杭等をいう。
杭頭４１は、杭４を打設した場合の杭の上方をいう。
杭の上端４２から所定の距離の杭周に支持材５を取り付ける。
支持材５は、山形鋼等の鋼材を使用し、所定の位置に取り付ける。取り付けは溶接、ボルト等によっておこなう。
支持材５は、杭の打設前に予め取り付けておくことが望ましい。なお、杭４の打設後に取り付けることもできる。
【０００９】
＜ハ＞施工方法
まず、杭４を所定の間隔で打設する。
杭打設前に支持材５を取り付けていない場合は、支持材５を所定の位置に取り付ける。
次に、杭頭処理材３を設置する。
環状板１と鉄筋２の溶接は、工場又は陸上の作業ヤードでおこなう。このため、信頼性の高い溶接を効率的に行える。ここで、鉄筋２の取り付け位置は、実際に打設した杭頭間の距離を考慮して決める。例えば、杭間隔が設計より狭くなった場合は、設計より短い鉄筋２を使用するか、鉄筋２と環状板１が重複する範囲を長くする。
杭頭処理材３はクレーンで吊り上げ、各環状板１をそれぞれの杭頭に挿入する。
環状板１は、支持材５の上に設置する。
杭頭４１と環状板１は、原則として溶接等で固定しない。
上部構造物用に打設したコンクリートによって杭頭４１と杭頭処理材３と上部構造物とを一体化させる。
【００１０】
【本発明の効果】
本発明の杭頭処理方法は以上説明したようになるから次のような効果を得ることができる。
＜イ＞開口部の補強には、鋼製の環状板を使用する。このため、配置する鉄筋量を減らすことができる。
＜ロ＞環状板と鉄筋の溶接は杭頭処理材を設置する前に陸上の作業ヤード又は工場で行う。このため、溶接の信頼性が向上し、施工効率も向上する。
＜ハ＞環状板を杭に溶接して固定しない。このため、溶接箇所が少なくなり、施工性が向上する。
【図面の簡単な説明】
【図１】本発明の杭頭処理方法の実施例の説明図
【符号の説明】
１・・・環状板
２・・・鉄筋
３・・・杭頭処理材
４・・・杭
４１・・杭頭
５・・・支持材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pile head processing method.
[0002]
[Prior art]
As a conventional pile head processing method for connecting a pile and an upper structure, there is a method of embedding about the pile diameter in the upper structure in order to make the pile head a rigid connection. In this case, since the lower bar of the superstructure interferes with the pile, the connecting portion is reinforced by the following method.
<I> A method of arranging opening reinforcing bars around the pile head.
<B> A method in which the plate is welded and attached to the pile head at the site where the pile is placed, and the rebar of the superstructure is welded to the plate.
[0003]
[Problems to be solved by the present invention]
The conventional pile head processing method described above has the following problems.
<A> The amount of reinforcing bars locally increases in the method using the opening reinforcing bars. For this reason, it is necessary to arrange many reinforcing bars in a limited space. As a result, it is necessary to take measures for filling the concrete between the densely arranged reinforcing bars.
<B> When using a plate, weld the pile head and plate, plate and rebar at the construction site. For this reason, it may become a problem in terms of construction efficiency, welding reliability, cost, and the like.
[0004]
[Object of the present invention]
The present invention has been made to solve the above-described conventional problems, and an object thereof is to provide an easy and high-quality pile head processing method.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the pile head processing method of the present invention is a pile head processing method for connecting a pile head and an upper structure. The pile head treatment material, in which the reinforcing bars for the superstructure connected to the pile are pre-welded to the annular plate having an inner diameter larger than the outer diameter of the pile, is inserted from the pile head, and the support is supported. The pile head treatment material is installed on the material, and the concrete for the upper structure is placed, so that the pile, the pile head treatment material, and the upper structure are integrated.
[0006]
[Embodiments of the Invention]
Embodiments of the present invention will be described below with reference to the drawings.
[0007]
<I> Pile head processing material The pile head processing material 3 is comprised from the cyclic | annular board 1 and the reinforcement 2 for superstructures.
The annular plate 1 is an annular steel plate having an inner diameter larger than the outer diameter of the pile 4.
The annular plate 1 is used to reinforce the opening around the pile head.
The rebar 2 between the annular plates becomes the lower rebar of the upper structure constructed between the pile heads.
The reinforcing bar 2 is fixed to the annular plate 1 by welding.
[0008]
<B> Pile pile 4 refers to a steel pipe pile, a concrete pile or the like to be placed in the sea.
The pile head 41 refers to the upper side of the pile when the pile 4 is driven.
The support material 5 is attached to the circumference of the pile at a predetermined distance from the upper end 42 of the pile.
The support material 5 is a steel material such as angle steel and is attached at a predetermined position. Installation is done by welding, bolts, etc.
It is desirable to attach the support material 5 in advance before placing the pile. In addition, it can also be attached after placing the pile 4.
[0009]
<C> Construction method First, the piles 4 are driven at predetermined intervals.
When the support material 5 is not attached before pile driving, the support material 5 is attached to a predetermined position.
Next, the pile head treatment material 3 is installed.
Welding of the annular plate 1 and the reinforcing bar 2 is performed in a factory or a work yard on land. For this reason, highly reliable welding can be performed efficiently. Here, the attachment position of the reinforcing bar 2 is determined in consideration of the distance between the pile heads actually placed. For example, when the pile interval becomes narrower than the design, the rebar 2 shorter than the design is used, or the range where the rebar 2 and the annular plate 1 overlap is lengthened.
The pile head treatment material 3 is lifted by a crane, and each annular plate 1 is inserted into each pile head.
The annular plate 1 is installed on the support material 5.
In principle, the pile head 41 and the annular plate 1 are not fixed by welding or the like.
The pile head 41, the pile head treatment material 3, and the upper structure are integrated by the concrete cast for the upper structure.
[0010]
[Effect of the present invention]
Since the pile head processing method of the present invention is as described above, the following effects can be obtained.
<A> A steel annular plate is used to reinforce the opening. For this reason, the amount of reinforcing bars to be arranged can be reduced.
<B> Welding of the circular plate and the reinforcing bar is carried out at the work yard or factory on land before installing the pile head treatment material. For this reason, the reliability of welding improves and construction efficiency also improves.
<C> Do not fix the annular plate by welding it to the pile. For this reason, a welding location decreases and workability improves.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of an embodiment of a pile head processing method according to the present invention.
DESCRIPTION OF SYMBOLS 1 ... Ring plate 2 ... Reinforcing bar 3 ... Pile head processing material 4 ... Pile 41 ... Pile head 5 ... Support material
Claims (1)
杭の上端から所定の距離の杭周に支持材を取り付けた杭を打設し、
内径が杭の外径よりも大きい環状板に、杭に接続する上部構造物用の鉄筋を予め溶接して取り付けた杭頭処理材を杭頭から挿入し、
前記支持材の上に杭頭処理材を設置し、
上部構造物用のコンクリートを打設することによって、杭と杭頭処理材と上部構造物とを一体化させることを特徴とする、
杭頭処理方法。In the pile head processing method that connects the pile head and the superstructure,
Pile a pile with a support material around the pile at a predetermined distance from the top of the pile,
Insert the pile head treatment material attached by welding the reinforcing bars for the superstructure connected in advance to the annular plate whose inner diameter is larger than the outer diameter of the pile from the pile head,
A pile head treatment material is installed on the support material,
By placing concrete for superstructure, the pile, pile head treatment material and superstructure are integrated,
Pile head processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000103947A JP4319764B2 (en) | 2000-04-05 | 2000-04-05 | Pile head processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000103947A JP4319764B2 (en) | 2000-04-05 | 2000-04-05 | Pile head processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001288756A JP2001288756A (en) | 2001-10-19 |
| JP4319764B2 true JP4319764B2 (en) | 2009-08-26 |
Family
ID=18617573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000103947A Expired - Fee Related JP4319764B2 (en) | 2000-04-05 | 2000-04-05 | Pile head processing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4319764B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101247201B1 (en) | 2012-09-05 | 2013-03-25 | 신세계건설(주) | Reinforcement member for preventing punching shear and construction method using the same |
| CN120083188B (en) * | 2025-04-30 | 2025-07-08 | 安徽水安建设集团股份有限公司 | Composite foundation structure and construction method |
-
2000
- 2000-04-05 JP JP2000103947A patent/JP4319764B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001288756A (en) | 2001-10-19 |
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