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8. Glossary
Seismic bedrock
The seismic bedrock is the surface from which the seismic site effect develops. It generally presents a strong impedance contrast with the overlying soils.
Geotechnical substrate
The notion of geotechnical bedrock is relative and depends on the structure to be built. In practice, it is defined in studies as the surface below which the deformation generated by the structure is slight to negligible.
Radiation damping
Radiative damping is due to reflected waves carrying part of the energy away from the system towards infinity.
Intrinsic depreciation
Material or material-intrinsic damping relates to the dissipation of energy due to internal friction during deformation of the material. Soil-intrinsic damping...
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Glossary
Bibliography
Software tools
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Cyberquake – This software models the response of soils to seismic shocks.
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Code-Aster – This is a free software package for numerical simulation of structural mechanics.
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Standards and norms
- Calcul des structures pour leur résistance au séisme. Partie 5 : Fondations, ouvrages de soutènements et aspects géotechnique. - NF EN 1998-5 AFNOR - septembre 2005
Regulations
Decree no. 2010-1254 of October 22, 2010 on seismic risk prevention.
Décret n° 2010-1255 du 22 octobre 2010 portant délimitation des zones de sismicité du territoire français.
Arrêté du 22 octobre 2010 relative à la classification et aux règles de constructions parasismiques applicables aux bâtiments de la classe dite "à risque normal" (Order of October 22, 2010 on the classification...
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