Citation

Kasagi M, Fujita K, Tsuji M, Takewaki I. Heliyon 2016; 2(2): e00069.

Affiliation

Dept. of Architecture and Architectural Eng., Kyoto University, Nishikyo, Kyoto 615-8540, Japan.

Copyright

(Copyright © 2016, Elsevier Publishing)

DOI

10.1016/j.heliyon.2016.e00069

PMID

27441248

Abstract

A base-isolated building may sometimes exhibit an undesirable large response to a long-duration, long-period earthquake ground motion and a connected building system without base-isolation may show a large response to a near-fault (rather high-frequency) earthquake ground motion. To overcome both deficiencies, a new hybrid control system of base-isolation and building-connection is proposed and investigated. In this new hybrid building system, a base-isolated building is connected to a stiffer free wall with oil dampers. It has been demonstrated in a preliminary research that the proposed hybrid system is effective both for near-fault (rather high-frequency) and long-duration, long-period earthquake ground motions and has sufficient redundancy and robustness for a broad range of earthquake ground motions.An automatic generation algorithm of this kind of smart structures of base-isolation and building-connection hybrid systems is presented in this paper. It is shown that, while the proposed algorithm does not work well in a building without the connecting-damper system, it works well in the proposed smart hybrid system with the connecting damper system.

Language: en