Chiou and Youngs PEER-NGA Empirical Ground Motion Model for ...

Chiou and Youngs PEER-NGA Empirical Ground Motion Model for ... Chiou and Youngs PEER-NGA Empirical Ground Motion Model for ...

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Sa (g) Sa (g) 1 0.1 0.01 0.001 0.0001 1 0.1 0.01 0.001 0.0001 1 10 25 Period = 0.01 (sec); Vs30 = 520(m/s); O14b 50 100 200 3 4 5 6 7 8 1 10 25 Magnitude Period = 1 (sec); Vs30 = 520(m/s); O14b 50 100 200 3 4 5 6 7 8 Magnitude Sa (g) Sa (g) 0.01 0.001 0.0001 Figure 41: Comparison of magnitude scaling predicted by the model developed in this study (solid curves) and predicted by Sadigh et al. (1997) (dashed curves) for soft rock. A VS30 of 520 m/s was used to represent the average conditions for Sadigh et al.’s (1997) rock model. C&Y2006 Page 59 1 0.1 1 0.1 0.01 0.001 0.0001 1 10 25 Period = 0.2 (sec); Vs30 = 520(m/s); O14b 50 100 200 3 4 5 6 7 8 1 10 25 Magnitude Period = 3 (sec); Vs30 = 520(m/s); O14b 50 100 200 3 4 5 6 7 8 Magnitude

Sa (g) Sa (g) 1 0.1 0.01 0.001 0.0001 1 0.1 0.01 0.001 0.0001 1 10 25 Period = 0.01 (sec); Vs30 = 310(m/s); O14b 50 100 200 3 4 5 6 7 8 1 10 25 Magnitude Period = 1 (sec); Vs30 = 310(m/s); O14b 50 100 200 3 4 5 6 7 8 Magnitude Sa (g) Sa (g) 0.01 0.001 0.0001 Figure 42: Comparison of magnitude scaling predicted by the model developed in this study (solid curves) and predicted by Sadigh et al. (1997) (dashed curves) for soil. A VS30 of 310 m/s was used to represent the average conditions for Sadigh et al.’s (1997) soil model. C&Y2006 Page 60 1 0.1 1 0.1 0.01 0.001 0.0001 1 10 25 Period = 0.2 (sec); Vs30 = 310(m/s); O14b 50 100 200 3 4 5 6 7 8 1 10 25 Magnitude Period = 3 (sec); Vs30 = 310(m/s); O14b 50 100 200 3 4 5 6 7 8 Magnitude

Sa (g)<br />

Sa (g)<br />

1<br />

0.1<br />

0.01<br />

0.001<br />

0.0001<br />

1<br />

0.1<br />

0.01<br />

0.001<br />

0.0001<br />

1<br />

10<br />

25<br />

Period = 0.01 (sec); Vs30 = 520(m/s); O14b<br />

50<br />

100<br />

200<br />

3 4 5 6 7 8<br />

1<br />

10<br />

25<br />

Magnitude<br />

Period = 1 (sec); Vs30 = 520(m/s); O14b<br />

50<br />

100<br />

200<br />

3 4 5 6 7 8<br />

Magnitude<br />

Sa (g)<br />

Sa (g)<br />

0.01<br />

0.001<br />

0.0001<br />

Figure 41: Comparison of magnitude scaling predicted by the model developed in this study (solid<br />

curves) <strong>and</strong> predicted by Sadigh et al. (1997) (dashed curves) <strong>for</strong> soft rock. A VS30 of 520 m/s was<br />

used to represent the average conditions <strong>for</strong> Sadigh et al.’s (1997) rock model.<br />

C&Y2006 Page 59<br />

1<br />

0.1<br />

1<br />

0.1<br />

0.01<br />

0.001<br />

0.0001<br />

1<br />

10<br />

25<br />

Period = 0.2 (sec); Vs30 = 520(m/s); O14b<br />

50<br />

100<br />

200<br />

3 4 5 6 7 8<br />

1<br />

10<br />

25<br />

Magnitude<br />

Period = 3 (sec); Vs30 = 520(m/s); O14b<br />

50<br />

100<br />

200<br />

3 4 5 6 7 8<br />

Magnitude

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