Reliability of Nonlinear Frame Structures by SFEM

by Achintya Haldar, Univ of Arizona, Tucson, United States,
Yiguang Zhou, Univ of Arizona, Tucson, United States,

Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability


A method is proposed for the reliability analysis of nonlinear frame structures with flexible connections. The uncertainty of a connection is represented by a group of random moment-relative rotation curves. A random index parameter is introduced to consider the randomness in the connection behavior. The assumed stress-based stochastic finite element method is used for the reliability estimation. The reliability of frame structures with rigid connections, deterministic flexible connections and random flexible connections is stressed in this paper.

Subject Headings: Structural reliability | Frames | Finite element method | Rigid frames | Uncertainty principles | Connections (structural) | Moment (mechanics) | Rotation

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