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The identification of building structural systems. I. The linear case

Udwadia, Firdaus E. and Marmarelis, Panos Z. (1976) The identification of building structural systems. I. The linear case. Bulletin of the Seismological Society of America, 66 (1). pp. 125-151. ISSN 0037-1106.

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This paper investigates the response of structural systems to strong earthquake ground shaking by utilizing some concepts of system identification. After setting up a suitable system model, the Weiner technique of nonparametric identification has been introduced and its experimental applicability studied. The sources of error have been looked into and several new results have been presented on accuracy calculations stemming from the various assumptions in the Wiener technique. The method has been applied in studying the response of a 9-story reinforced concrete structure to earthquake excitation as well as ambient vibration testing. The linear contribution to the total roof response during strong ground shaking has been identified, and it is shown that a marked nonlinear behavior is exhibited by the structure during the strong-motion portion of the excitation.

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Additional Information:Copyright © 1976, by the Seismological Society of America. Manuscript received February 5, 1975. We thank Professors G. W. Housner, D. E. Hudson, P. C. Jennings, and M.D. Trifunac for critical reading of the manuscript and some valuable remarks. Thanks are also due to Professor G. D. McCann for the use of his computer facility during the initial phases of this research. This work was supported by grants from the National Science Foundation and the Earthquake Research Affiliates Program of the California Institute of Technology.
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Caltech Earthquake Research AffiliatesUNSPECIFIED
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48388
Deposited By: George Porter
Deposited On:13 Aug 2014 14:57
Last Modified:03 Oct 2019 07:03

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