Research Article
Jun 1979
Estimating Earthquake Response of Simple Hysteretic Structures
Authors: Wilfred D. Iwan and Nathan C. GatesAuthor Affiliations
Publication: Journal of the Engineering Mechanics Division
Volume 105, Issue 3
Abstract
This paper examines various methods for defining effective linear systems for the earthquake response analysis of simple hysteretic structures. A broad class of approximate methods is considered including: harmonic equivalent linearization, resonant amplitude matching, dynamic mass, constant critical damping, geometric stiffness, geometric energy, stationary random equivalent linearization, and average period and damping. A technique for estimating the accuracy of different approximate methods is presented. A new linearization scheme that may be applied to both degrading and nondegrading hysteretic systems is proposed.
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Published In
Journal of the Engineering Mechanics Division
Volume 105 • Issue 3 • June 1979
Pages: 391 - 405
Copyright
© 1979 American Society of Civil Engineers.
History
Published in print: Jun 1979
Published online: Feb 3, 2021
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Authors
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Wilfred D. Iwan
Prof. of Applied Mechanics; California Inst. of Tech., Pasadena, Calif.
Nathan C. Gates
Project Engr., Gulf Research and Development Co., Houston, Tex.
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.