JOINING METHOD FOR COLUMN AND PILE AND ITS JOINING STRUCTURE

Japanese Patent JP3826525

B2

PROBLEM TO BE SOLVED: To prevent cracking of concrete resulting from load and slipping-off of an embedded column and prevent the cross section deformation of a steel tube pile for asymmetric load given from a steel frame column by tightening the upper outer periphery of a concrete filled steel tube column after the circumference of the leg part of the steel frame column is filled with a filler and giving prestress on a pile head part.
SOLUTION: The leg part 11 of a steel frame column 1 is inserted in the upper space part of a concrete filled steel tube pile 2, concrete as an embedded material 4 is filled into the circumferential of the steel frame column 1, after the embedded material 4 is substantially hardened, a prestress introduction ring 5 is tightened, and a compression prestress is introduced in the upper part of a pile head part 21. A prestress tension is put in the embedded material 4 through the steel tube pile 2, the embedded material 4 is always under a compression stress state, and even if load from the steel frame column 1 is received, cracks can be prevented. In addition, even if a pile head cross section deforms by an asymmetric load, the cross section deformation can be prevented since introduction prestress is exerted keep a true circule.

Shigeki Ito
Kazuno Konno
Yasuhisa Imamoto

JP34462897A

September 27, 2006

December 15, 1997

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jfe Steel Corporation

E02D27/12; E04B1/24; E04B1/30; E04B1/58; (IPC1-7): E02D27/12; E04B1/24; E04B1/30; E04B1/58

JP351428A
JP827806A
JP972108A
JP4254646A
JP9242348A

Hisao Kobayashi
Kiyoshi Yasushima
Noboru Omura
Takanashi Norio
Souji Sasaki
Saburo Kimura

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