Time-Variant System Reliability Analysis Using Response Surface Methodology and Fast Integration

by Timothy H.-J. Yao, Univ of Illinois at Urbana-Champaign, Urbana, United States,
Y. K. Wen, Univ of Illinois at Urbana-Champaign, Urbana, United States,

Document Type: Proceeding Paper

Part of: Probabilistic Mechanics and Structural and Geotechnical Reliability

Abstract: An approximate method is presented to solve the structural reliability problem of complex structural systems subjected to time-variant loads where the parameters of the structural system and the load can be modeled as random variables. The proposed method employs Response Surface Methodology (RSM) and the fast integration scheme developed by Wen and Chen (1987). It is assumed that the statistics of the system parameters are known or can be estimated through system identification and statistical methods. An example of a hysteretic system under earthquake loading (Eliopoulos and Wen, 1991) is solved using the proposed method.

Subject Headings: Structural systems | Structural reliability | System analysis | System reliability | Parameters (statistics) | Load factors | Earthquakes | Seismic loads

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