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Title:
CONCRETE PILE WITH OUTER-SHELL STEEL PIPE, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2012/081459
Kind Code:
A1
Abstract:
Provided are a concrete pile with an outer-shell steel pipe and a method for manufacturing the same, the concrete pile with an outer-shell steel pipe being endowed with exceptional flexibility, constructability, and economic efficiency. This is achieved by using a steel pipe for covering a precast concrete pile, the pipe being configured from a combination of a plurality of divided arcuate plates, and by improving a conventional superfluous design related to the thickness of a steel pipe to obtain a more reasonable design. A steel pipe (10) for forming an outer shell is composed of a thin steel plate and is formed into a cylindrical shape by linking a plurality of divided arcuate plates (1) in the circumferential direction via joints (1a, 1b), the plurality of divided arcuate plates being formed by dividing the thin steel plate into a plurality of plates in the circumferential direction and bending the plates at the two circumferential edges to form the joints (1a, 1b).

Inventors:
HORI, Kengo (Ltd. 17-12 Kiba 2-chome, Koto-k, Tokyo 42, 〒1350042, JP)
堀 謙吾 (〒42 東京都江東区木場二丁目17番12号 日鐵住金建材株式会社内 Tokyo, 〒1350042, JP)
KAWABATA, Noriyuki (Ltd. 17-12 Kiba 2-chome, Koto-k, Tokyo 42, 〒1350042, JP)
Application Number:
JP2011/078268
Publication Date:
June 21, 2012
Filing Date:
December 07, 2011
Export Citation:
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Assignee:
Nippon Steel & Sumikin Metal Products Co., Ltd. (17-12, Kiba 2-Chome Koto-ku Tokyo, 42, 〒1350042, JP)
日鐵住金建材株式会社 (〒42 東京都江東区木場二丁目17番12号 Tokyo, 〒1350042, JP)
Pileforum Inc. (Kayanuma-Building 405, 2-10-6 Shinkawa Chuo-k, Tokyo 33, 〒1040033, JP)
パイルフォーラム株式会社 (〒33 東京都中央区新川二丁目10番6号カヤヌマビル405号 Tokyo, 〒1040033, JP)
HORI, Kengo (Ltd. 17-12 Kiba 2-chome, Koto-k, Tokyo 42, 〒1350042, JP)
International Classes:
E02D5/30
Foreign References:
JPS51157104U1976-12-14
JPH1181554A1999-03-26
JPH0416211U1992-02-10
JPS63164685U1988-10-26
JP2006200128A2006-08-03
Attorney, Agent or Firm:
YAMANA, Masahiko (M. YAMANA Patent & Trademark Office, Neo-Kamiya Building 1F 10-11, Hatchobori 4-chome, Chuo-k, Tokyo 32, 〒1040032, JP)
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Claims:



 
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