Numerical Study on the Longitudinal Response Characteristics of Utility Tunnel under Strong Earthquake: A Case Study

Figure 4

The waveform, significant duration, Fourier spectra, and response spectra of selected earthquake records: (a) time history and significant duration of Shizuoka wave; (b) time history and significant duration of Tochigi wave; (c) Fourier and response spectra of Shizuoka wave; (d) Fourier and response spectra of Tochigi wave.

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