Modelling Nonlinear Site Effects in Physics-Based Ground Motion Simulation (2018)
Type of ContentConference Contributions - Other
- QuakeCORE: Posters 
Background This study examines the performance of site response analysis via nonlinear total-stress 1D wave-propagation for modelling site effects in physics-based ground motion simulations of the 2010-2011 Canterbury, New Zealand earthquake sequence. This approach allows for explicit modeling of 3D ground motion phenomena at the regional scale, as well as detailed nonlinear site effects at the local scale. The approach is compared to a more commonly used empirical VS30 (30 m time-averaged shear wave velocity)-based method for computing site amplification as proposed by Graves and Pitarka (2010, 2015), and to empirical ground motion prediction via a ground motion model (GMM).
RightsCC-BY 4.0 International
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Bradley, Brendon; de la torre C (2017)This study examines the performance of nonlinear total-stress wave-propagation site response analysis for modelling site effects in physics-based ground motion simulations of the 2010-2011 Canterbury, New Zealand ...
Validation of empirical and physics-based ground motion and site response prediction models for the 2010-2011 Canterbury earthquakes Bradley, Brendon; Jeong, S.; Razafindrakoto, H.N.R. (University of Canterbury. Civil and Natural Resources Engineering, 2015)The 2010-2011 Canterbury earthquakes were recorded over a dense strong motion network in the near-source region, yielding significant observational evidence of seismic complexities, and a basis for interpretation of ...
Insights into the Effect of Source Uncertainties on Ground Motion Simulation of the 2010 Mw7.1 Darfield Earthquake Bradley, Brendon; Razafindrakoto H; Polak, V.; Graves, R.W. (2017)A complete understanding of ground motion uncertainty is fundamental for physics based seismic hazard analysis. This poster focuses on the quantification of the effect of the earthquake source uncertainties (fault geometry, ...