Title:
PILE HEAD ISOLATION STRUCTURE AND CONSTRUCTION METHOD THEREOF
Document Type and Number:
Japanese Patent JP2019100088
Kind Code:
A
Abstract:
To provide a pile head isolation structure capable of fixing a seismic isolation device with large outside diameter according to a pile diameter to the pile head while reducing the construction period by using a precast pile including a steel pipe covering the outer peripheral surface, and a construction method thereof.SOLUTION: A precast pile 2 that has a cylindrical outer shell concrete 3 integrated with a steel pipe 5 on the outer peripheral surface, the upper end of the steel pipe 5 being formed protruding upward from the upper end of the outer shell concrete 3 is manufactured in such manner that ready-mixed concrete placed inside the steel pipe 5 is hardened with a centrifugal force and solidified into a tubular shape. At the construction site, after the precast pile 2 is installed into the ground G, an inner space 2a of the pile head is filled with solidifying member 6 to be flat and a plurality of anchor bolts 4 are embedded in an upper portion of the upper end of the outer shell concrete 3 at intervals in the peripheral direction, and a seismic isolation device 10 placed on the upper face of the pile head is fixed to the precast pile 2 via the plurality of anchor bolts 4.SELECTED DRAWING: Figure 1
Inventors:
MURATA TETSUO
SUDO KATSUYA
TSUCHIDA TAKAAKI
HAYASHI HARUKA
SAKAGUCHI TOMOYA
MORI KIYOTAKA
IIZUKA SHINICHI
YAMAZAKI YASUO
OTA YUSUKE
NAKAZAWA MAKOTO
MIZUSHIMA KOSUKE
MASUNAGA SHOTA
SUDO KATSUYA
TSUCHIDA TAKAAKI
HAYASHI HARUKA
SAKAGUCHI TOMOYA
MORI KIYOTAKA
IIZUKA SHINICHI
YAMAZAKI YASUO
OTA YUSUKE
NAKAZAWA MAKOTO
MIZUSHIMA KOSUKE
MASUNAGA SHOTA
Application Number:
JP2017232250A
Publication Date:
June 24, 2019
Filing Date:
December 04, 2017
Export Citation:
Assignee:
TOA HARBOR WORKS CO LTD
AOKI ASUNARO KENSETSU KK
HAZAMA ANDO CORP
NISHIMATSU CONSTR CO LTD
HASEGAWA KOMUTEN KK
MITANI SEKISAN KK
AOKI ASUNARO KENSETSU KK
HAZAMA ANDO CORP
NISHIMATSU CONSTR CO LTD
HASEGAWA KOMUTEN KK
MITANI SEKISAN KK
International Classes:
E02D27/34; E02D5/30; E02D27/12
Domestic Patent References:
JP2011226066A | 2011-11-10 | |||
JP2011231574A | 2011-11-17 | |||
JPS57161224A | 1982-10-04 | |||
JP2005113413A | 2005-04-28 | |||
JPH0291315A | 1990-03-30 | |||
JP2007154558A | 2007-06-21 | |||
JP2000282485A | 2000-10-10 | |||
JP2012001981A | 2012-01-05 | |||
JP2009167597A | 2009-07-30 |
Foreign References:
US5775038A | 1998-07-07 |
Attorney, Agent or Firm:
Seiryu International Patent Service Corporation
Takayoshi in the daytime
Masao Sakaizawa
Takayoshi in the daytime
Masao Sakaizawa