Characteristics of Response Spectra for Long-periods of Main-shock Recordings of the Chi-Chi Earthquake

In current practice, predictive models are used to extrapolate long-period response spectra based on far-field recordings in moderate and weak earthquakes. However, the spectra are not long enough and the data is often not reliable, meaning that the seismic design code cannot accurately define seismic design requirements for long-period structures. The near-field recordings in the main-shock of the Chi-Chi earthquake have a large signal-to-noise ratio, making them suitable for studying long-period acceleration response spectra up to 20 sec. Acceleration response spectra from 246 stations within 120 km of the causative fault are statistically analyzed in this paper. The influence of distance and site conditions on long-period response spectra is discussed, and shapes of the amplification spectra are compared with standard spectra specified in the Chinese seismic design code. Suggestions for future revisions to the code are proposed.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/16713664
• Authors:
  • Yong, Chen
  • Yanxiang, Yu
• Publication Date: 2007-6

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 111-121
• Serial:
  • Earthquake Engineering and Engineering Vibration
  • Volume: 6
  • Issue Number: 2
  • Publisher: Springer
  • ISSN: 1671-3664
  • EISSN: 1993-503X
  • Serial URL: http://link.springer.com/journal/11803

Subject/Index Terms

• TRT Terms: Earthquake engineering; Earthquake resistant design; Far field; Seismicity; Signal to noise ratio
• Identifier Terms: Chi-Chi Earthquake (Taiwan)
• Uncontrolled Terms: Design codes; Response spectra
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01082437
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 18 2007 11:28AM