Host: Science Council of Japan
Co-host: Japan Society for Safety Engineering, The Japanese Geotechnical Society, Japan Society of Civil Engineers, The Japan Society of Mechanical Engineers, Architectural Institute of Japan, The Japan Society for Aeronautical and Space Sciences, The Society of Materials Science, Japan, The Japan Society of Naval Architects and Ocean Engineers
Name : The 10th Japan Conference on Structural Safety and Reliability
Number : 10
Location : [in Japanese]
Date : October 25, 2023 - October 27, 2023
Horizontal seismic isolation systems have been studied for Sodium-Cooled Fast Reactors to improve their seismic resistance. However, challenges arise in reducing seismic forces not only in the horizontal direction but also in the vertical direction. The authors have developed a new three-dimensional seismic isolation system to address this issue. A 1/2-scale test specimen was fabricated, and the force-displacement relationships were examined using static loading tests with a maximum axial force of 8000 kN to evaluate the feasibility of this design. Moreover, a horizontal oil damper was fabricated as a horizontal damping element, and its damping force was assessed through excitation tests with a maximum velocity of 2.7 m/s. This paper reports the findings of these tests.