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Fatigue Reliability of Structural Systems Under Earthquake Loads

by Richard J. Nielsen, Univ of Idaho, Moscow, United States,
Xiqin Long, Univ of Idaho, Moscow, United States,



Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation

Abstract:

The authors have develop a methodology for calculating the expected low-cycle fatigue damage in structural components subjected to brief nonstationary random loads. The methodology is extended to determine the higher-order expectations and cross-correlations between component damage levels which are then incorporated into a reliability analysis of an entire structural system. The system reliability analysis is based on the union of cut sets for failure events. Numerical analyses have been undertaken to investigate the application of the methodology to practical engineering problems.

Subject Headings: System reliability | Structural systems | Structural reliability | Structural analysis | Fatigue (material) | Failure analysis | Earthquakes

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