NON-STATIONARY ANALYSIS OF SOIL RIGIDITYAND DAMPING BY USE OF ARRAY STRONG-MOTION RECORDS

• KAMIYAMA Makoto

  JAPAN SOCIETY OF CIVIL ENGINEERS

• YOSHIDA Masam

  JAPAN SOCIETY OF CIVIL ENGINEERS

Bibliographic Information

Other Title

• 鉛直アレー強震記録による地盤剛性ならびにダンピングの非定常変動の解析
• エンチョク アレー キョウシン キロク ニ ヨル ジバン ゴウセイ ナラビニ ダンピング ノ ヒテイジョウ ヘンドウ ノ カイセキ

Abstract

This paper deals with a method for analyzing the non-stationary variations of soil rigidity and damping using array strong-motion records. The concept of the “Complex Envelope” is used as a basic tool to analyze such non-stationary variations. The dynamic stress-strain relation of soils, which is usually available from array strong-motion records, is converted into an imaginary system by use of the “Complex Envelope” so that the rigidity modulus and damping ratio of soils are estimated in terms of time. The authors applied the method to the strong-motion records observed at Port Island during the 1995 Kobe Earthquake. This application confirms the validity and usefulness of the method.

Journal

• Doboku Gakkai Ronbunshu

  Doboku Gakkai Ronbunshu 2000 (647), 379-394, 2000-04-21

  Japan Society of Civil Engineers

Keywords

• rigidity modulus
• damping factor
• non-stationary variation
• strong motion
• complex envelope
• stress
• strain
• 1995 Hyogoken Nanbu Earthquake

Details

• CRID: 1390282680284889344
• NII Article ID: 10006540512
• NII Article ID: 130003801568
• NII Article ID: 10004543283
• NII Book ID: AN10014020
• DOI: 10.2208/jscej.2000.647_379
• ISSN: 18827187
• ISSN: 02897806
• NDL BIB ID: 5367417
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5367417
• Web Site: https://www.jstage.jst.go.jp/article/jscej1984/2000/647/2000_647_379/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed