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Simulation of near-source ground motions with dynamic failure

Aagaard, Brad T. and Hall, John F. and Heaton, Thomas H. (2000) Simulation of near-source ground motions with dynamic failure. In: Advanced technology in structural engineering. American Society of Civil Engineers , Reston, VA, pp. 1-8. ISBN 978-0-7844-0492-8.

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We simulate long-period near-source ground motions due to hypothetical events on a strike-slip fault (M_w 6.9) and a buried thrust fault (M_w 7.0). We include the dynamics of the rupture process using a model of sliding friction. The directivity of the rupture creates large displacement and velocity pulses in the ground motions in the forward direction. For the strike-slip fault the peak values occur near the tip of the fault, while for the buried thrust fault the peak values occur up-dip from the top of the fault. The acceleration response spectra in the 2.0 sec to 3.0 sec range exceed 1.0 g near the strike-slip fault in the forward direction, and 0.5 g up-dip from the top of the thrust fault. These results quantify the threat posed to long-period structures near faults.

Item Type:Book Section
Related URLs:
URLURL TypeDescription
Hall, John F.0000-0002-7863-5060
Heaton, Thomas H.0000-0003-3363-2197
Additional Information:© 2000 American Society of Civil Engineers.
Subject Keywords:Ground motion; Geological faults; Earthquakes; Simulation models
Record Number:CaltechAUTHORS:20121220-152414173
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Official Citation:Simulation of Near-Source Ground Motions with Dynamic Failure Aagaard, B., Hall, J., and Heaton, T. Advanced Technology in Structural Engineering. June 2000, 1-8
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:36086
Deposited By: Tony Diaz
Deposited On:06 Mar 2013 18:28
Last Modified:09 Nov 2021 23:19

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