Abstract
In this chapter, we introduce the concept of response spectrum, which in recent years has gained wide acceptance in structural dynamic practice, particularly in earthquake engineering design. Stated brief, the response spectrum is a plot of the maximum response (maximum displacement, velocity, acceleration, or any other quantity of interest) to a specified load function for all possible single-degree-of-freedom systems. The abscissa of the spectrum is the natural frequency (or period) of the system, and the ordinate the maximum response. A plot of this type is shown in Fig. 5.1, in which a one-story building is subject to a ground displacement indicated by the functiou s (t). The response spectral curve shown in Fig. 5.1 (a) gives, for any single-degree-of-freedom system, the maximum displacement of the response from an available spectral chart, for a specified excitation, we need only to know the natural frequency of the system.
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© 2004 Springer Science+Business Media New York
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Paz, M., Leigh, W. (2004). Response Spectra. In: Structural Dynamics. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-0481-8_5
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DOI: https://doi.org/10.1007/978-1-4615-0481-8_5
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-5098-9
Online ISBN: 978-1-4615-0481-8
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