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Proceedings Paper

Development of base isolation device complied with the ultimate strength design code in Japan
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Paper Abstract

This paper reports the scheme of a research project funded by the Ministry of Land, Infrastructure, Transport and Tourism (MLIT) from the fiscal year of 2012 to 2014 under the title of "Development of base isolation device complied with the ultimate strength design code." The theoretical prediction tells us a new approach to develop a highly stable laminated rubber bearing that has a constant buckling load even under large lateral displacement. Relatively high shear stiffness makes it more stable and the height of the bearing should be longer than its diameter. They are the newly discovered theoretical buckling stability criteria from the previous studies conducted by the author’s research team. The experimental studies in this project show the compatibility with the theoretical prediction and highly linear loaddisplacement relationship under large deformation. The performance of the newly developed device satisfies the requirement of the ultimate strength design code, if the ground condition of the target building is normally solid enough to prevent liquefaction. The theoretically predicted buckling stability of the laminated rubber bearings has been experimentally verified by the specimens of this project.

Paper Details

Date Published: 15 April 2016
PDF: 18 pages
Proc. SPIE 9799, Active and Passive Smart Structures and Integrated Systems 2016, 97991I (15 April 2016); doi: 10.1117/12.2219488
Show Author Affiliations
Isao Nishimura, Tokyo City Univ. (Japan)
Satoshi Suzuki, Aichi Institute of Technology (Japan)


Published in SPIE Proceedings Vol. 9799:
Active and Passive Smart Structures and Integrated Systems 2016
Gyuhae Park, Editor(s)

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