Title:
FOUNDATION VIBRATION DAMPER
Document Type and Number:
Japanese Patent JP2001295300
Kind Code:
A
Abstract:
To suppress resonance with a vibrator by facilitating the adjustment of natural period of a vibration system.
A rectangular block-shaped foundation 4 is constructed on the heads of piles 2 driven in a ground 1. Supports 5 are erected in four corners of the foundation 4. Weights 8 formed by stacking a plurality of weight plates 8a are attached to the supports in such states as adjusting their positions vertically. The vibrator 3 installed on the foundation 4 is operated and, in a case where the vibrator 3 and the foundation 4 side are resonated, the attachment heights of the weights 8 to the supports 5 are changed.
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| WO/2005/045140 | SEISMIC RESTRAINT APPARATUS |
Inventors:
YOKOZAWA JUNICHI
SUMITA NORIYASU
SUMITA NORIYASU
Application Number:
JP2000113570A
Publication Date:
October 26, 2001
Filing Date:
April 14, 2000
Export Citation:
Assignee:
ISHIKAWAJIMA HARIMA HEAVY IND
International Classes:
E02D27/44; (IPC1-7): E02D27/44
Attorney, Agent or Firm:
Mitsuo Sakamoto