Method to estimate equivalent natural period with micro-tremor measurements

Munemasa Tokunaga, Masamichi Sogabe, Fumiaki Uehan, Hiroyuki Tanimura, Yoshitaka Murono, Kiyoshi Ono

研究成果: Article

抜粋

The object of this paper is to propose a method to estimate the equivalent natural period with micro-tremor measurements on the basis of the correlation between the natural frequency and the yield frequency. A method, combining the Eigensystem Realization Algorithm and some empirical hypotheses of vibration modes, was proposed for identifying the first natural vibration modes of structures. A ratio of the yield frequency to the natural frequency was mostly a certain constant value and the average value of the ratio depends on the type of structures. This paper proposes a simple procedure for estimating the yield frequency with micro-tremor measurements.

元の言語English
ページ(範囲)21-27
ページ数7
ジャーナルQuarterly Report of RTRI (Railway Technical Research Institute) (Japan)
53
発行部数1
DOI
出版物ステータスPublished - 2012 2 1

ASJC Scopus subject areas

  • Mechanical Engineering

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