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1. Regulatory zoning, soil classification and importance coefficients
1.1 Regulatory zoning
Regulatory zoning defines five zones of increasing seismicity, based on communal divisions. Zone 5, which includes the Caribbean islands, corresponds to the highest level of hazard in France. Metropolitan France and the other French overseas departments have four seismic zones, ranging from zone 1, with very low seismicity (Aquitaine basin, Paris basin, etc.), to zone 4, with medium seismicity (Rhine trench, Alpine and Pyrenean massifs).
The parameter used to describe the seismic hazard at national level is a gr , ground-to-rock acceleration (rocky ground is taken as the reference). Figure 1 illustrates...
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Regulatory zoning, soil classification and importance coefficients
Dynamic soil behavior
Bibliography
Standards and norms
- Eurocode 7: geotechnical design – Part 1: General rules (Classification number: P94-251-1). - NF EN 1997-1 - (juin 2005)
- Eurocode 7 – Geotechnical calculations – Part 1: General rules – National Annex to NF EN 1997-1:2005 (Classification number: P94-251-1/NA). - NF EN 1997-1/NA - (septembre 2006)
- Eurocode 7: geotechnical design – Part 2: Site reconnaissance and testing (Classification number: P94-252)....
Regulations
Arrêté du 22 octobre 2010 and Arrêté du 19 juillet 2011 modifiant l'arrêté du 22 octobre 2010 relatif à la classification et aux règles de construction parasismique applicables aux bâtiments de la classe dite " à risque normal ".
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