Title:
BASE ISOLATION DEVICE AND BASE ISOLATION STRUCTURE PROVIDED WITH THE SAME
Document Type and Number:
Japanese Patent JP2023136088
Kind Code:
A
Abstract:
To provide a simple base isolation device capable of preventing buckling when undergoing large deformation and to provide a base isolation structure provided with the base isolation device.SOLUTION: A base isolation device 10 comprises a multi-stage laminated rubber bearing 18 made up of: laminated rubber 22 which is installed in a base isolation layer 16 between a superstructure 12 and a substructure 14 and arranged in stages in a vertical direction; and a connection member 32 which is arranged between upper and lower laminated rubber 22 and connects the upper and lower laminated rubber 22. The base isolation device also has a buckling prevention bearing 20 which is installed at a distance from the multi-stage laminated rubber bearing 18 in a horizontal direction. The buckling prevention bearing 20 has a slide section 36 which allows the connection member 32 to come into contact with and to slide on the same when the multi-stage laminated rubber bearing 18 undergoes deformation of predetermined magnitude or more.SELECTED DRAWING: Figure 1
Inventors:
SUGIMOTO KOICHI
Application Number:
JP2022041515A
Publication Date:
September 29, 2023
Filing Date:
March 16, 2022
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
F16F15/04; E04H9/02; F16F15/02
Attorney, Agent or Firm:
Sakai International Patent Office