A study on earthquake observation record in the building using the three-dimensional seismic isolation system

Tetsuya Tomizawa, Osamu Takahashi, Junji Suhara, Keiichi Okada, Yasuo Tsuyuki, Takafumi Fujita

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The seismic isolation system building becomes general to improve the seismic safety in Japan, iccently. However, the general seismic isolation system is chiefly effective only to the horizontal motion not for the vertical motion. In the future, it is necessary that we achieve developing the device against the vertical motion for securing the improvement of the seismic safety and the habitability. And so we have been developed the three-dimensional seismic isolation system for applying to a genemi building. It consists of laminated nubber bearings as horizontal isolation device and air springs as vertical isolation device. The rocking suppression device with oil dampers can control a rocking vibration. The building using the three-dimensional seismic isolation system was completed on March 3, 2011. In this paper, we report the observation record, system identification and simulation analysis of earthquake observation records. And by analyzing earthquake observation recoMs, we confirm the seismic characteristics and efficacy of the three-dimensional seismic isolation system.

Original languageEnglish
Pages (from-to)1393-1402
Number of pages10
JournalJournal of Structural and Construction Engineering
Volume77
Issue number679
DOIs
Publication statusPublished - 1 Sep 2012

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Keywords

  • Earthquake observation
  • Rocking
  • Seismic isolation
  • Simulation
  • System identification
  • Vertical motion

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