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The frequency content of ground motions seems to be one of the most important parameters to explain the structural damage experienced during worldwide strong earthquakes. The frequency content of ground motions can be characterized by various stochastic and/or deterministic indicators: the frequency bandwidth indicator ϵ (Cartwright & Longuet-Higgins) related to the power spectral density function and, respectively, the control (corner) period Tc of the structural response spectra or the mean period TM. Peak ground velocity (PGV) and the ratio PGA/PGV can be used as either damage potential parameters or frequency content indicators. A comparative analysis of stochastic and deterministic frequency content indicators and of PGV is applied to a set of 30 strong ground motion records having peak ground acceleration (PGA) from 0.2–0.8 g and recorded on 4 continents during the last 70 years.
The frequency content of ground motions seems to be one of the most important parameters to explain the structural damage experienced during worldwide strong earthquakes. The frequency content of ground motions can be characterized by various stochastic and/or deterministic indicators: the frequency bandwidth indicator ϵ (Cartwright & Longuet-Higgins) related to the power spectral density function and, respectively, the control (corner) period Tc of the structural response spectra or the mean period TM. Peak ground velocity (PGV) and the ratio PGA/PGV can be used as either damage potential parameters or frequency content indicators. A comparative analysis of stochastic and deterministic frequency content indicators and of PGV is applied to a set of 30 strong ground motion records having peak ground acceleration (PGA) from 0.2–0.8 g and recorded on 4 continents during the last 70 years.
Correlations Between Frequency Content Indicators of Strong Ground Motions and PGV
Journal of Earthquake Engineering ; 17 ; 543-559
2013-04-12
17 pages
Article (Journal)
Electronic Resource
English
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