Methods for Seismic Reliability Analysis

IUSS Pavia
EE - Earthquake Engineering
Fall 2001
Date (from - to):
04/10/2001 – 03/11/2001

Probabilistic modelling of uncertainties/randomness of mechanical properties. Computation of random capacities with reference to specified structural performances. Definition of seismic hazard for reliability analysis: use of synthetic or of recorded accelerograms. Basic formulation of the reliability problem: difference between time-invariant and time-variant cases. Probability computations: I) methods based on equivalent SDOF models and non-linear static incremental analysis, II) random vibration approaches with stochastic linearization, III) simulation methods based on non-linear dynamic MDOF analysis: directional simulation and importance sampling; response surface techniques, mixed methods; economical simulation techniques directly folded into hazard analysis. Recent developments in reliability based seismic design codes.

Suggested readings:

  • Clough R. W. and Penzien J. (1993): Dynamic of structures, Parts IV and V. Mc Graw-Hill International Editions.
  • Yao H.-J and Wen Y.-K (1996): Response surface method for time-variant reliability analysis, Journal of Structural Eng. Vol. 122 N.1, February (and references thereof).
  • Bazzurro P. and Cornell C. A. (1994): Seismic hazard analysis of non-linear structures, Journal of Structural Eng. Vol. 120 N.11, November