Online Modal Identification of Concrete Dams Using the Subspace Tracking-Based Method

Figure 16

The strong-motion records of channel 9 and the corresponding power spectrums during three major California earthquakes: (a) the strong-motion record of channel 9 during the San Fernando earthquake; (b) the power spectrum of the strong-motion record of channel 9 during the San Fernando earthquake; (c) the strong-motion record of channel 9 during the Chino hill earthquake; (d) the power spectrum of the strong-motion record of channel 9 during the Chino hill earthquake; (e) the strong-motion record of channel 9 during the Newhall earthquake; (f) the power spectrum of the strong-motion record of channel 9 during the Newhall earthquake.

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