Automatic generation of smart earthquake-resistant building system: Hybrid system of base-isolation and building-connection. Issue 2 (February 2016)

• Record Type: Journal Article
• Authors: Kasagi, M.; Fujita, K.; Tsuji, M.; Takewaki, I.
• Is Part Of: Heliyon. Volume 2:Issue 2(2016)
• Publication Date: 2016-02
• Subjects: Engineering -- Building -- Mechanics -- Structural engineering -- Civil engineering; Research -- Periodicals; Medical sciences -- Periodicals; Natural history -- Periodicals; Social sciences -- Periodicals; Earth sciences -- Periodicals; Physical sciences -- Periodicals; 507.2
• DOI: 10.1016/j.heliyon.2016.e00069
• Languages: English
• ISSNs: 2405-8440

Abstract

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.