Random Plastic Analysis Using a Constitutive Model to Predict the Evolutionary Stress-Related Responses and Time Passages to Failure
Publication: Journal of Engineering Mechanics
Volume 134, Issue 10
Abstract
The random vibration analyses of gradually yielding shear-frame buildings are considered using a recently proposed constitutive model that is used to calculate the detailed degradation of the stiffness of structures which permits the prediction of their global responses, as well as the states of stress in their members. It is shown that the detailed stress degradation model can also be used in connection with a global force-displacement model, such as the Bouc and Wen model, to predict the time evolution of the various stress-related variables and time passages to failure. The two models are applied in separate analyses and are exemplified using both a single-story building and a four-story building subjected to artificial ground motions. The corresponding probability density functions of the various stress-related responses, including the strains and plastic hinge lengths, and the first time passages to failure are presented and discussed.
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Acknowledgments
The computational assistance of Mr. Anthony Agelastos and Dr. Bo Yang is gratefully acknowledged.
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Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 134 • Issue 10 • October 2008
Pages: 881 - 891
Copyright
© 2008 ASCE.
History
Received: Jul 9, 2007
Accepted: Apr 15, 2008
Published online: Oct 1, 2008
Published in print: Oct 2008
Notes
Note. Associate Editor: Arvid Naess
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