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Structural Research Series 489PDF


Title:Stochastic Models for Dependent Load Processes
Author(s):Wen, Y.K.; Pearce, H.T.
Subject(s):Extreme loads
Load combination
Poisson Delayed process
Gauss-Markov sequence
Bartlett-Lewis process
Abstract:Stochastic models for dependent loads and load effects are developed. The effects of stochastic dependencies on load combination and structural reliability are investigated in the context of summation of pulse processes in which occurrence time, intensity and duration are allowed to be correlated within each process and between processes. Approximate analytical solutions based on a load coincidence method are obtained and verified by Monte-Carlo simulations. It is found that while within load positive correlations may generally have only moderate effect on the combined load probability, between-load dependencies may be dominant factors and significantly increase the probability of threshold level being exceeded by the combined load.
Issue Date:1981-03
Publisher:University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Civil Engineering Studies SRS-489
Genre:Technical Report
Sponsor:National Science Foundation Research Grant CME-79-18053
Date Available in IDEALS:2009-10-27

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