Experimental study on torsional vibration behavior of steel frame specimen with eccentricity

Hiroto Kato, Koichi Kusunoki, Toshibumi Fukuta, Fumitoshi Kumazawa

Research output: Contribution to journalArticle

Abstract

Torsional response can destructively effect the seismic capacity of structures. Many damaged buildings due to torsional vibration were observed after sever earthquakes. However, it cannot be said that the mechanism of the damage due to the torsional vibration had been clearly investigated. The main purpose of this paper is to reproduce the torsional response with the pseudo dynamic test technique. One-span, one-bay and two-story steel structures were tested. Three structures that had different eccentric ratios were designed for the pseudo dynamic tests. Furthermore, shaking table tests on three structures were conducted to verify the validity of the pseudo dynamic tests. From the shaking table and the pseudo dynamic tests, it was confirmed that the pseudo dynamic test can adequately reproduce the response of structure with eccentricity; eccentricity was not as effective on the maximum horizontal displacement at center of gravity, but the maximum rotational angle was increased according to its eccentricity.

Original languageEnglish
Pages (from-to)73-80
Number of pages8
JournalARI Bulletin of the Istanbul Technical University
Volume53
Issue number2
Publication statusPublished - 2003

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Steel
Steel structures
Earthquakes
Gravitation

Keywords

  • Building structure with eccentricity
  • Pseudo dynamic test
  • Shaking table test
  • Steel frame
  • Torsional seismic behaviour

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Experimental study on torsional vibration behavior of steel frame specimen with eccentricity. / Kato, Hiroto; Kusunoki, Koichi; Fukuta, Toshibumi; Kumazawa, Fumitoshi.

In: ARI Bulletin of the Istanbul Technical University, Vol. 53, No. 2, 2003, p. 73-80.

Research output: Contribution to journalArticle

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