Seismic Response in Catania by Different Methodologies

The prediction of the seismic response and assessment of the amplification factor of the surface soils is a topic of maximum interest in engineering seismology and the final goal of any microzonation study. Two very different numerical techniques are described in this paper. One is a 2-D method, the Spectral Element Method (SPEM-2D), which solves the propogation of the seismic field through complex geological structures. The other is a 1-D method (by the GEODIN code), commonly used in engineering practice, which takes into account the detailed shear waves soil profile or superficial layers, including soil non-linearity. The seismic response of the surface by 1-D code is evaluated, using as input motion at the conventional bedrock sealed recorded accelerograms and synthetic accelerograms given by the 2-D code at a given depth. A comparison between soil response at the surface, given by the 2-D method, and by the 1-D method is presented in the paper. In particular the effects of the seismic input, of the shear waves soil profile and of the soil non-linearity, are also analyzed and discussed.

  • Availability:
  • Corporate Authors:

    WIT Press

    Computational Mechanics, 25 Bridge Street
    Billerica, MA  United States  01821
  • Authors:
    • Grasso, S
    • Laurenzano, G
    • Maugeri, M
    • Priolo, E
  • Publication Date: 2005

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; References; Tables;
  • Pagination: pp 63-79
  • Monograph Title: Seismic Prevention of Damage: A Case Study in a Mediterranean City

Subject/Index Terms

Filing Info

  • Accession Number: 01010630
  • Record Type: Publication
  • ISBN: 1845640047
  • Files: TRIS
  • Created Date: Nov 21 2005 1:09PM