Journal
COMPUTERS & STRUCTURES
Volume 88, Issue 7-8, Pages 395-412Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compstruc.2009.12.002
Keywords
Probability density evolution method; Hysteretic model; Nonlinear; Random parameters; Physical stochastic ground motion; Seismic response
Funding
- Natural Science Foundation of China for Innovative Research Groups [50621062]
- Natural Science Foundation of China [90715033, 10872148]
- MOE of China
- 863 Plan [2008AA05Z413]
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A physical stochastic ground motion model and the extended Bouc-Wen model are incorporated into the probability density evolution method for stochastic seismic response analysis of structures exhibiting high nonlineanty. Fundamentals and numerical algorithms for the synthesized method are described. Case studies demonstrate that coupling of nonlinearity and randomness will greatly change the response characteristics of the structure. The popular viewpoint that randomness of structural parameters is trivial compared to that of excitations is overthrown Besides, whether localization or dispersion of nonlinearity will occur in the structure depends mainly on the configuration of the structural parameters. (C) 2009 Elsevier Ltd. All rights reserved
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