Energy balance-based seismic response prediction method of flexible-stiff mixed structure with displacement controller

Naoshi Nomura, Daiki Sato, Haruyuki Kitamura, Takuya Ueki, Kazuaki Miyagawa

Research output: Contribution to journalArticle

Abstract

It has been proven that the displacement controller which has hardening type hysteresis can reduce the displacement of frame or isolation layer against the huge earthquake from many experimental or analytical results. However, it is difficult to evaluate the changes in response characteristics with various qualitative parameters. The purpose of this paper is to evaluate the response characteristics of the flexible-stiff mixed structure with displacement controller qualitatively and simply. Energy balance-based seismic response prediction method proposed by Prof. Akiyama is extended to the structure with displacement controller, and this method is validated through many time history response analyses using the single-degree-of-freedom model. In addition, the estimation method for the passive controlled structure and the isolated structure with displacement controller is shown respectively, and the effectiveness of this method is demonstrated by analyzing time history analysis results and estimation results.

Original languageEnglish
Pages (from-to)1705-1713
Number of pages9
JournalJournal of Structural and Construction Engineering
Volume78
Issue number692
DOIs
Publication statusPublished - 1 Jan 2013

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Keywords

  • Displacement controller
  • Energy balance
  • Flexible-stiff mixed structure
  • Huge earthquake
  • Response prediction method
  • SDOF model

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