Simulation of Synthetic Ground Motions for Specified Earthquake ...
Simulation of Synthetic Ground Motions for Specified Earthquake ...
Simulation of Synthetic Ground Motions for Specified Earthquake ...
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Applications in Practice:<br />
<br />
Simulate a given accelerogram:<br />
…<br />
Acceleration, g<br />
0.15<br />
0<br />
Recorded<br />
-0.25<br />
0 40<br />
Time, sec<br />
Match<br />
statistical<br />
characteristics<br />
Representing:<br />
• Intensity<br />
• Frequency<br />
• Bandwidth<br />
Identify<br />
model parameters<br />
I a , t mid , D 5-95<br />
ω mid , ω’ , ζ<br />
Done <strong>for</strong> many records to get observational data<br />
<strong>for</strong> predictor and response variables<br />
model<br />
<strong>for</strong>mulation<br />
0.15<br />
0<br />
-0.25<br />
0.15<br />
0<br />
-0.25<br />
0.15<br />
0<br />
-0.25<br />
0<br />
…<br />
<strong>Simulation</strong>s<br />
40<br />
<br />
Simulate a suite <strong>of</strong> ground motions <strong>for</strong> a given design scenario:<br />
…<br />
0.1<br />
Given<br />
predictive<br />
<strong>Earthquake</strong>/Site characteristics<br />
equations<br />
(design scenario)<br />
Regression<br />
F, M, R rup , V s30<br />
Predictor variables<br />
Generate<br />
several possible sets <strong>of</strong><br />
model parameters<br />
I a , t mid , D 5-95<br />
ω mid , ω’ , ζ<br />
Response variables<br />
model<br />
<strong>for</strong>mulation<br />
0<br />
-0.1<br />
0.1<br />
0<br />
-0.1<br />
0.1<br />
0<br />
-0.1<br />
0 5 10 15 20 25 30 35 40 45 50<br />
…<br />
<strong>Simulation</strong>s
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