Refinement and application of an estimation procedure for site natural periods using microtremor

Tatsuo Ohmachi, Katsuaki Konno, Tatsuya Endoh, Takumi Toshinawa

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Based on recent studies suggesting that Rayleigh waves are observable in microtremor ground motions, an improved procedure is proposed to estimate a natural period of a site using amplitude ratios between horizontal and vertical motion of the microtremors. The procedure is to make the best use of not only peaks but also troughs in a spectral amplitude ratio. Using microtremor data measured at all junior high schools in 23 wards of Tokyo, the proposed procedure is applied to a period-mapping of the area and compared with an existing map to a satisfactory level of accuracy, demonstrating its practicality.

本文言語English
ページ(範囲)251-260
ページ数10
ジャーナルDoboku Gakkai Rombun-Hokokushu/Proceedings of the Japan Society of Civil Engineers
489 pt 1-27
DOI
出版ステータスPublished - 1994
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)

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