Domain Reduction Method with ShakerMaker, STKO and OpenSees

About the Webinar

The Domain Reduction Method (DRM) enables high-fidelity earthquake response modeling of civil infrastructure by exciting local-scale numerical models with complex three-dimensional seismic motions. The DRM primarily relies on numerical simulations to generate the large datasets that capture the seismic wave field's spatio-temporal evolution in a one-element width boundary that encompasses the domain of interest. This course introduces ShakerMaker, a tool for creating high-frequency datasets for large faults in horizontally-layered half-spaces using modest computational resources. It covers ShakeMaker and DRM theory, simulation considerations, and features a case study on a high-rise in Santiago, Chile. This building, hypothetically affected by motions from the nearby San Ramón fault modeled using ShakerMaker, is subjected to the generated DRM motions. A new STKO plugin for dealing with DRM datasets is introduced as part of the FEA model preparation before simulating the system using OpenSeesMP. Post-simulation results are analyzed and interpreted with the aid of STKO.

Presenter

Dr. José Abell (Universidad de los Andes, Chile) is a Chilean professor working at the Universidad de los Andes (Chile) in the School of Engineering and Applied Sciences. He obtained an MSE from the Pontificia Universidad Católica de Chile, Santiago, RM, Chile and received his PhD from the University of California, Davis in the United States. His personal research focuses on the study of linear and nonlinear structure-soil systems under seismic loading, through modeling and simulation. An important aspect of his research is that he places great emphasis on correctly describing the propagation of seismic waves from source to site, coupling detailed models of seismic motions with detailed models of sites and structures. Furthermore, he is a developer of OpenSees and longtime user of STKO.