Reliability-Based Design Codes

by Sharif Rahman, Cornell Univ, United States,
Mircea Grigoriu, Cornell Univ, United States,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


Reliability analysis for code-designed simple structures subjected to earthquake loading are being determined using both static and dynamic methods and strength-based and damage-related limit states. Seismic hazard is incorporated by assuming a filtered Poisson process model for earthquakes. Ground motion in different seismic events are modeled as independent identically distributed stationary Gaussian processes with band-limited white spectrum. Results suggest that designs by Uniform Building Code at sites with frequent small earthquakes have different reliability than at sites with rare large earthquakes, although the sites are characterized by the same value a10 of 10% upper fractile of peak ground acceleration.

Subject Headings: Standards and codes | Dynamic structural analysis | Ground motion | Stationary processes | Load and resistance factor design | Structural reliability | Gaussian process | Earthquake resistant structures

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