Seismic analysis

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Seismic performance analysis or seismic analysis is an intellectual tool of earthquake engineering which breaks the complex topic into smaller parts to gain a better understanding of seismic performance of building and non-building structures or their models.

3D Chart of seismic performance.

In general, seismic analysis is based on the methods of structural dynamics [1]. For decades, the most prominent instrument of seismic analysis has been the earthquake response spectrum method [2] which, also, contributed to the proposed building code's concept of today [3].

However, those response spectra are good, mostly, for single-degree-of-freedom systems. Numerical step-by-step integration [4], applied with the charts of seismic performance [5], seems to be a more effective method of analysis for multi-degree-of-freedom structural systems at severe process of earthquake excitation.

References [change]

  1. Chopra, Anil K. (1995). Dynamics of Structures. Prentice Hall. ISBN 0138552142.
  2. Newmark, N.M.; Hall, W.J. (1982). Earthquake Spectra and Design. EERI. ISBN 0943198224.
  3. A new concept of design code for seismic performance
  4. Clough, Ray W.; Penzien, Joseph (1993). Dynamics of Structures. McGraw-Hill. ISBN 0070113947.
  5. Performance charting for dynamic structural control prodjects