MS204 - Modeling of Complex Structures in an Infinite Domain

Organized by: M. Lainer (Technical University of Munich, Germany), G. Degrande (KU Leuven, Belgium), G. Lombaert (KU Leuven, Belgium), G. Müller (Technical University of Munich, Germany), F. Taddei (Technical University of Vienna, Austria) and K. van Dalen (Delft University of Technology, Netherlands)
Keywords: complex materials, ground-borne vibrations, soil-structure-interaction, wave scattering and diffraction , infinite soil domain
Induced soil vibrations may reduce the serviceability of a building and can cause discomfort or health problems for residents. Ground-borne vibrations in highly populated areas are related, for example, to traffic, vibrating machinery, seismicity, or energy generation processes (e.g. geothermal power plants). Less urbanized areas, e.g. coastal regions, can also be affected by ground-borne vibrations. An example presents the construction and operation of offshore wind turbines and offshore drilling platforms for oil and gas. Theoretical, numerical, and experimental approaches have been developed to efficiently and precisely describe complex structures and sophisticated materials in an unbounded or bounded soil domain. These cover, for example, accomplishments in developing and describing (non-) linear soil-structure-interaction models or seismic metamaterials. Another field presents the description of complex soil domains, which are characterized by layering, multiphase influences, or plastic behaviour. These approaches often have in common that they mimic an “infinite” soil domain and approximate the Sommerfeld radiation condition. The purpose of this minisymposium is to bring together academic staff, researchers, post-graduate students, and professional engineers who deal with advanced topics in the field of ground-borne vibrations to present and share novel approaches. Research areas may include (but are not limited to) the following issues: (a) Modelling complex soil materials, e.g. layering, water saturation, seismic metamaterials (b) Impact of uncertainties in data sets (c) Non-linear material behaviour in a soil medium (d) Wave scattering and diffraction due to incident wave fronts (e) Soil-structure interaction