JPH0364009B2 - - Google Patents
Info
- Publication number
- JPH0364009B2 JPH0364009B2 JP60063700A JP6370085A JPH0364009B2 JP H0364009 B2 JPH0364009 B2 JP H0364009B2 JP 60063700 A JP60063700 A JP 60063700A JP 6370085 A JP6370085 A JP 6370085A JP H0364009 B2 JPH0364009 B2 JP H0364009B2
- Authority
- JP
- Japan
- Prior art keywords
- pile
- footing
- present
- pile head
- steel material
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は杭基礎に係るものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a pile foundation.
（従来の技術）及び（発明が解決しようとする問
題点）
従来、杭頭接合部はピンジヨイント機構の仕様
が確立されていないのにもかかわらず、杭頭接合
部をピンジヨイントとして設計する場合が多かつ
た。(Prior Art) and (Problems to be Solved by the Invention) Conventionally, pile cap joints are often designed as pin joints, even though specifications for the pin joint mechanism have not been established. It was.
これは実情にそぐわないのみならず、最近の設
計指針によれば杭頭接合部は全て固定として設計
せざるを得ず、このように杭頭接合部の仮定がピ
ンジヨイントから固定に移行すると、経済設計上
不利になる場合が多い。 This not only does not suit the actual situation, but according to recent design guidelines, all pile cap joints must be designed as fixed, and if the assumption of pile cap joints shifts from pin joint to fixed, economic design It is often at a disadvantage.
従つて杭頭接合部をピンジヨイント機構とする
具体的な構造の出現が要望されている。 Therefore, there is a demand for a concrete structure in which the pile head joint is a pin joint mechanism.
（問題点を解決するための手段）
本考案はこのような問題点を解決するために提
案されたもので、杭頭部に植立した碇着長の短か
い鋼材をフーチングに碇着するとともに、同フー
チングと前記杭頭部との間に両者を構造的に絶縁
する仕切材を介装してなることを特徴とする杭基
礎に係るものである。(Means for solving the problem) The present invention was proposed to solve the above problem. This invention relates to a pile foundation characterized in that a partition material is interposed between the footing and the pile head to structurally insulate them.
（作用）及び（発明の効果）
本発明においては前記したように、杭頭部に碇
着長の短かい鋼材を植設し、同鋼材をフーチング
に碇着して曲げモーメントは伝達できないが、水
平剪断力は伝達できるようにし、且つ前記杭頭部
とフーチング下面との間に仕切材を介装し、同仕
切材によつて杭とフーチングとを杭頭面で構造的
に絶縁し、更に杭のフーチングへの埋込み量が０
か極めて小さいものとして、杭の側面からの杭の
曲げモーメント、及び剪断力が殆んど伝達できな
いようにし、かくして本発明によれば簡単な構成
で杭頭接合部をピンジヨイントとすることができ
る。(Function) and (Effects of the Invention) As described above, in the present invention, a steel material with a short anchoring length is planted at the pile head and the steel material is anchored to the footing, so that bending moment cannot be transmitted. The horizontal shearing force can be transmitted, and a partition material is interposed between the pile head and the bottom surface of the footing, and the partition material structurally insulates the pile and the footing on the pile cap surface, and The amount of pile embedded in the footing is 0.
By making it extremely small, almost no bending moment and shearing force of the pile can be transmitted from the side of the pile, and thus, according to the present invention, the pile cap joint can be made into a pin joint with a simple structure.
（実施例） 以下本発明を図示の実施例について説明する。(Example) The present invention will be described below with reference to the illustrated embodiments.
第１図において１は杭で、その杭頭部に碇着長
の短かい水平剪断力伝達用鋼材２が植立され、同
鋼材２がフーチング３に碇着されるとともに、杭
頭部に弗素樹脂板、鉄板等の仕切板１４が載架さ
れ、同仕切板４によつてフーチング３と杭１とが
構造的に絶縁されている。 In Fig. 1, reference numeral 1 indicates a pile, and a steel material 2 for transmitting horizontal shearing force with a short anchoring length is planted on the pile head, and the steel material 2 is anchored to a footing 3. A partition plate 14 made of a resin plate, an iron plate, or the like is mounted, and the footing 3 and the pile 1 are structurally insulated by the partition plate 4.
図中５は捨コンクリート、６は敷砂利である。 In the figure, 5 is concrete and 6 is gravel.
図示の実施例によれば前記したように、杭１の
杭頭部に載架された仕切板４によつて杭１とフー
チング３とが構造的に絶縁され、杭１のフーチン
グ３への根入れは０、若しくは極めて小さいもの
として、杭１の側面から、杭１の曲げモーメント
及び剪断力が殆んど伝達できないようになつてい
る。更に杭頭部に植立された碇着長の短かい前記
鋼材２が、フーチング３に碇着されていることに
よつて、曲げモーメントは伝達されないが水平剪
断力が伝達される。 According to the illustrated embodiment, as described above, the pile 1 and the footing 3 are structurally insulated by the partition plate 4 mounted on the pile head of the pile 1, and the root of the pile 1 to the footing 3 is The insertion is set to 0 or extremely small so that almost no bending moment and shearing force of the pile 1 can be transmitted from the side surface of the pile 1. Further, since the steel material 2 having a short anchorage length planted on the pile head is anchored to the footing 3, a horizontal shearing force is transmitted although no bending moment is transmitted.
かくして図示の実施例によれば、簡単な構成で
杭頭接合部がピンジヨイントに構成されるもので
ある。 Thus, according to the illustrated embodiment, the pile cap joint is formed into a pin joint with a simple construction.
第２図は本発明の他の実施例を示し、複数の水
平剪断力伝達用鋼材１が使用されている。 FIG. 2 shows another embodiment of the invention, in which a plurality of horizontal shear force transmitting steel members 1 are used.
図中前記実施例と均等部分には同一符号が附さ
れている。 In the figure, parts equivalent to those of the above embodiment are given the same reference numerals.
第３図及び第４図は本発明の更に他の各実施例
を示し、前記仕切板４の代りに、一定層の砂また
は砂利等の粒度材４′を杭頭部に載架し、同粒度
材４′によつて杭１とフーチング３とを構造的に
絶縁したものである。 3 and 4 show still other embodiments of the present invention, in which, instead of the partition plate 4, a certain layer of granular material 4' such as sand or gravel is mounted on the pile head. The pile 1 and the footing 3 are structurally insulated by the granular material 4'.
図中前記各実施例と均等部分には同一符号が附
されている。 In the drawings, parts equivalent to those of the above embodiments are given the same reference numerals.
以上本発明を実施例について説明したが、本発
明は勿論このような実施例にだけ局限されるもの
ではなく、本発明の精神を逸脱しない範囲内で
種々の設計の改変を施しうるものである。 Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .
第１図乃至第４図は本発明に係る杭基礎の各実
施例を示す縦断面図である。
１…杭、２…鋼材、３…フーチング、４…仕切
板、４′…粒度材。
1 to 4 are longitudinal cross-sectional views showing each embodiment of the pile foundation according to the present invention. 1...Pile, 2...Steel material, 3...Footing, 4...Partition plate, 4'...Grain size material.
Claims (1)
チングに碇着するとともに、同フーチングと前記
杭頭部との間に両者を構造的に絶縁する仕切材を
介装してなることを特徴とする杭基礎。1 A steel material with a short anchorage length planted at the pile head is anchored to a footing, and a partition material is interposed between the footing and the pile head to structurally insulate the two. A pile foundation featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6370085A JPS61225426A (en) | 1985-03-29 | 1985-03-29 | Pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6370085A JPS61225426A (en) | 1985-03-29 | 1985-03-29 | Pile foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61225426A JPS61225426A (en) | 1986-10-07 |
| JPH0364009B2 true JPH0364009B2 (en) | 1991-10-03 |
Family
ID=13236912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6370085A Granted JPS61225426A (en) | 1985-03-29 | 1985-03-29 | Pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61225426A (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58153823A (en) * | 1982-03-08 | 1983-09-13 | Takenaka Komuten Co Ltd | Connecting work of pile and footing |
-
1985
- 1985-03-29 JP JP6370085A patent/JPS61225426A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61225426A (en) | 1986-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |