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Some problems in the application of spectrum techniques to strong-motion earthquake analysis

Hudson, D. E. (1962) Some problems in the application of spectrum techniques to strong-motion earthquake analysis. Bulletin of the Seismological Society of America, 52 (2). pp. 417-430. ISSN 0037-1106.

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A comparison of analog and digital computation of strong-motion earthquake response spectra is made, and it is shown that the preference as to method will depend mainly on availability of computing equipment. The accuracy of analog response spectrum computations is shown to be compatible with the limitations of the original ground acceleration data. The accuracy of the customary approximate relationship between the displacement response spectrum and the velocity response spectrum is investigated, and the validity of the simplifications are shown for typical strong-motion earthquake applications. The relationship between the response spectrum and the Fourier spectrum is developed, and a comparison as to suitability for earth-quake engineering problems is given.

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Additional Information:Copyright © 1962, by the Seismological Society of America. Manuscript received September 8, 1961. Thanks are expressed to W. D. Iwan and M. E. J. O'Kelly for preparing the digital data and the computer program, and for carrying out the computations for the response spectrum comparisons and for the digital Fourier spectrum determinations. The computations and studies of the displacement and velocity response spectra were made by Mr. A. R. Chandrasekaran of the Department of Civil Engineering, University of Roorkee, India, to whom thanks are also expressed. Professor Glen V. Berg of the Department of Civil Engineering, University of Michigan, made available his digital data and computed Response Spectrum results, and contributed useful comments and suggestions which are much appreciated. The studies were supported in part by a grant from the National Science Foundation through the Engineering Sciences Division.
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ID Code:47806
Deposited By: George Porter
Deposited On:01 Aug 2014 19:57
Last Modified:03 Oct 2019 06:57

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