JOINT STRUCTURE FOR STEEL PIPE PILES

WIPO Patent Application WO/2016/013328

A1

This joint structure for steel pipe piles is used to join a first steel pipe pile and a second steel pipe pile in series and comprises: an externally fitting end that is provided on one end of the first steel pipe pile and that has a plurality of externally fitting step portions; and an internally fitting end that is provided on one end of the second steel pipe pile and that has a plurality of internally fitting step portions. The plate thickness of an externally fitting valley portion is formed to be larger the closer the respective externally fitting step portion is to the first steel pipe pile. The plate thickness of an internally fitting valley portion is formed to be larger the closer the respective internally fitting step portion is to the second steel pipe pile. The number of externally fitting peak portions for each externally fitting step portion and the number of internally fitting peak portions for each internally fitting step portion is each 8 or greater. The externally fitting end and/or the internally fitting end satisfy a prescribed relational expression.

MATSUMIYA HIRONOBU (JP)
KITAHAMA MASASHI (JP)
ISHIHAMA YOSHIROH (JP)
TAENAKA SHINJI (JP)
MOCHIZUKI TADACHIKA (JP)
KOBAYASHI YOSHINORI (JP)
SAKAMOTO TOSHIHIKO (JP)

PCT/JP2015/067008

January 28, 2016

June 12, 2015

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NIPPON STEEL & SUMITOMO METAL CORP (JP)

E02D5/24

WO2014080824A1

2014-05-30

JPH09158177A	1997-06-17
JP2005282356A	2005-10-13
JPH1143937A	1999-02-16
JPH1143936A	1999-02-16

SHIGA Masatake et al. (JP)
Masatake Shiga (JP)

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