Seismic displacement control design of base isolated structures by magneto-rheological dampers based on a pseudo-complex-damping rule

M. Ikenaga, Koju Ikago, N. Inoue

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper shows the feasibility of the displacement-dependent damper for a base-isolated structure. The ideal displacement-dependent damper can be modelled by using complex damping. To simulate such dampers by a semi-active damper (in this study the magneto-rheological damper), the pseudo-complex- damping rule is considered. From a series of shaking table tests and numerical analyses for the base-isolated structure, incorporated with the semi-active damper controlled by the pseudo-complex-damping rule in the base-isolated layer, it is shown that the hysteretic behavior of the damper, by the pseudo-complex-damping rule, cannot simulate the ideal displacement-dependent damper well because of the simplified assumption for the rule. An improvement of the pseudo-complex-damping rule is considered, and it is shown from the analyses that the damper by the improved rule can better simulate the displacement-dependent damper.

Original languageEnglish
Title of host publicationProceedings of the 13th International Conference on Civil, Structural and Environmental Engineering Computing
Publication statusPublished - 2011 Dec 1
Event13th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2011 - Chania, Crete, Greece
Duration: 2011 Sep 62011 Sep 9

Other

Other13th International Conference on Civil, Structural and Environmental Engineering Computing, CC 2011
CountryGreece
CityChania, Crete
Period11/9/611/9/9

Keywords

  • Base-isolated structure
  • Displacement-dependent damper
  • Magneto-rheological damper
  • Numerical analysis
  • Pseudo-complex-damping rule
  • Shaking table test

ASJC Scopus subject areas

  • Computer Science Applications
  • Civil and Structural Engineering
  • Environmental Engineering

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