Non-Bouc Degrading Hysteresis Model for Nonlinear Dynamic Procedure Seismic Design
Publication: Journal of Structural Engineering
Volume 131, Issue 2
Abstract
Exhaustive nonlinear dynamic procedure (NDP) analysis requires a degrading hysteresis model expressed as a differential equation. The classical form of differential equation hysteresis model is the Bouc–Wen model which is smoothly varying, and most other such models developed subsequently have the Bouc–Wen model as the core. In this paper an alternative differential equation endochronic plasticity model is presented. A computational model for the system identification of the parameters is also presented and the resulting model is applied to the experimental results of lateral cyclic in-plane tests on 20 retrofitted masonry walls. Data and analysis of the identification procedure results are presented as well as sample plots of the calculated versus experimental hysteresis loops. It is found that the model yields generally acceptable agreement with the experimental results and that the proposed model resulted in a stable and inexpensive parameter identification process.
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Acknowledgment
The writer would like to express sincere gratitude to the European Union for funding this project under Lome IV.
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Published In
Journal of Structural Engineering
Volume 131 • Issue 2 • February 2005
Pages: 287 - 291
Copyright
© ASCE.
History
Received: Feb 3, 2003
Accepted: Dec 9, 2003
Published online: Feb 1, 2005
Published in print: Feb 2005
Notes
Note. Associate Editor: Gregory A. MacRae
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