A simple model for strong ground motions and response spectra
Earthquake Engineering and Structural Dynamics
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Abstract
A simple model for the description of strong ground motions is introduced. The model shows that response spectra can be estimated by using only four parameters of the ground motion, the RMS acceleration, effective duration and two corner frequencies that characterize the effective frequency band of the motion. The model is windowed band-limited white noise, and is developed by studying the properties of two functions, cumulative squared acceleration in the time domain, and cumulative squared amplitude spectrum in the frequency domain. Applying the methods of random vibration theory, the model leads to a simple analytical expression for the response spectra. The accuracy of the model is checked by using the ground motion recordings from the aftershock sequences of two different earthquakes and simulated accelerograms. The results show that the model gives a satisfactory estimate of the response spectra.
Suggested Citation
Safak, E., Mueller, C., and Boatwright, J., 1988, A simple model for strong ground motions and response spectra: Earthquake Engineering and Structural Dynamics, v. 16, no. 2, p. 203-215, https://doi.org/10.1002/eqe.4290160204.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A simple model for strong ground motions and response spectra |
| Series title | Earthquake Engineering and Structural Dynamics |
| DOI | 10.1002/eqe.4290160204 |
| Volume | 16 |
| Issue | 2 |
| Publication Date | December 18, 2006 |
| Year Published | 1988 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Earthquake Engineering and Structural Dynamics |
| First page | 203 |
| Last page | 215 |