Title:
BASE ISOLATION SYSTEM USING PNEUMATIC LEVITATION MECHANISM
Document Type and Number:
Japanese Patent JP2015222097
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a base isolation system capable of easily switching damper performance depending on presence or absence of seismic movement and being easily applied to a skyscraper building having a large aspect ratio.SOLUTION: A base isolation system comprises: an isolator 3 which is arranged between a substructure 1 and a superstructure 2 and allows the superstructure 2 to be displaced in a horizontal direction with respect to the substructure 1; a damper 4 which has a friction member 41 installed between the substructure 1 and the superstructure 2 and pressed down by a sliding plate 40 and a vertical load acting on the sliding plate 40 due to the superstructure 2 and generates reaction force against horizontal displacement of the superstructure 2; a sensor 5 which detects seismic movement; and an axial force alleviation device 6 which is activated in accordance with output of the sensor 5 and controls pressing force of the sliding plate 40 on the friction member 41 by forming a pressure layer of pressurized fluid between the substructure 1 and the superstructure 2.
Inventors:
KIDA HIDENORI
NAKAMINAMI SHIGEKI
TANAKA HISAYA
NAKAMINAMI SHIGEKI
TANAKA HISAYA
Application Number:
JP2014106284A
Publication Date:
December 10, 2015
Filing Date:
May 22, 2014
Export Citation:
Assignee:
ASEISMIC DEVICES CO LTD
International Classes:
F16F15/02; E04H9/02; F16F7/08; F16F15/04
Domestic Patent References:
| JP2004263430A | 2004-09-24 | |||
| JP2014001514A | 2014-01-09 | |||
| JP2003286775A | 2003-10-10 |
Attorney, Agent or Firm:
Tetsuro Ide
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