A FUNDAMENTAL STUDY ON IMPACT OF SITE AMPLIFICATION EFFECT AND SOURCE SPECTRA FOR AMPLIFICATION OF SEISMIC INTENSITY

• NISHIKAWA Hayato

  福井工業大学 工学部建築土木工学科

• IKEMOTO Toshikazu

  金沢大学 理工研究域地球社会基盤学類

• MIYAJIMA Masakatsu

  金沢大学 理工研究域地球社会基盤学類

Bibliographic Information

Other Title

• 震度増分に及ぼすサイト増幅特性と震源スペクトルの影響に関する基本的考察

Abstract

 In this study, we investigated the influence of site amplification effect and source spectra on amplification of seismic intensity for the purpose of obtaining basic information for accurately evaluating the amplification of seismic intensity (dI). Firstly, an evaluation formula for dI was obtained based on the relation between earthquake motion spectrum and amplification factor of earthquake motion index. Using the obtained evaluation formula, dI for three earthquake types, various magnitudes, fmax, site amplification effects was estimated. As a result of investigating the relationship between the fundamental peak frequency of site amplification effects and dI, the frequency of maximum dI was shifted to the lower frequency range as magnitude increased for all earthquake types. In all earthquake types, dI tended to converge to a certain value as magnitude increased.

Journal

• Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))

  Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 75 (4), I_373-I_382, 2019

  Japan Society of Civil Engineers

Keywords

• JMA seismic intensity
• amplification factor
• source spectrum
• site effect

Details

• CRID: 1390845702282632320
• NII Article ID: 130007710880
• DOI: 10.2208/jscejseee.75.i_373
• ISSN: 21854653
• Web Site: https://www.jstage.jst.go.jp/article/jscejseee/75/4/75_I_373/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed