Title:
PILE HEAD JOINT STRUCTURE AND PILE HEAD JOINT METHOD
Document Type and Number:
Japanese Patent JP2021080800
Kind Code:
A
Abstract:
To provide a pile head joint structure and a pile head joint method which can bear a compressive axial force from a foundation part with a connection part while lowering a degree of fixation of a pile head joint part and achieving half-rigid connection.SOLUTION: A pile head joint structure 1 has a pile 2, a foundation part 3 provided above the pile 2, and a connection part 4 that extends in a vertical direction and whose lower side is embedded coaxially with the pile 2 and upper side is embedded in the foundation part 3. The connection part 4 has a steel pipe 41 extending in a vertical direction, an outer diameter of the steel pipe 41 is 1/6 time or more and 1/3 time or less of a pile diameter, the pile 2 has a pile body 27 and a cross section reduction part 26 that is provided coaxially with the pile body 27 and projects above the pile body 27, and the foundation part 3 is connected to the cross section reduction part 26 so as to transmit the axial force and is insulated from an outer peripheral part 25 of the pile body 27 so as to prevent the axial force transmission, and an outer diameter of the cross section reduction part 26 is 0.6 time or more and 0.7 time or less of the pile diameter.SELECTED DRAWING: Figure 1
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Inventors:
HASHIMOTO TAKESHI
ISODA KAZUHIKO
ISODA KAZUHIKO
Application Number:
JP2019211293A
Publication Date:
May 27, 2021
Filing Date:
November 22, 2019
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
E02D27/12
Domestic Patent References:
| JP2005344388A | 2005-12-15 | |||
| JP2012136880A | 2012-07-19 | |||
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Foreign References:
| US20070065233A1 | 2007-03-22 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Kenichi Kawabuchi
Nishizawa Kazumi
Kenichi Kawabuchi
Nishizawa Kazumi