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Cyclic behaviour of cohesionless soils under seismic loading

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Publication Date
Keywords
  • Cyclic Behaviour
  • Constitutive Law
  • Experimental Behaviour
  • Engineering
  • Computing & Technology :: Civil Engineering [C04]
  • Ingénierie
  • Informatique & Technologie :: Ingénierie Civile [C04]

Abstract

Cyclic behaviour of cohesionless soils under seismic loading Context From reality to laboratory From laboratory to numerical modelling Conclusion Cyclic behaviour of cohesionless soils under seismic loading Cerfontaine Benjamin - Boursier FRIA University of Lie`ge - GEO3 February 2012 1/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Don’t forget the soil ! Outline 1 Context Don’t forget the soil ! 2 From reality to laboratory Equivalence in-situ/triaxial test Monotonic behaviour charaterization Cyclic behaviour characterization 3 From laboratory to numerical modelling Summary Prevost’s model 4 Conclusion 2/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Don’t forget the soil ! Nigata, 1964 3/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Don’t forget the soil ! Kobe, 1995 4/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Don’t forget the soil ! San Fernando dam, 1971 5/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Don’t forget the soil ! Soil-structure interaction 6/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Equivalence in-situ/triaxial test Outline 1 Context Don’t forget the soil ! 2 From reality to laboratory Equivalence in-situ/triaxial test Monotonic behaviour charaterization Cyclic behaviour characterization 3 From laboratory to numerical modelling Summary Prevost’s model 4 Conclusion 7/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Equivalence in-situ/triaxial test Stress state in the soil Ground Ground Water Table σ'=σv K0σv before earthquake σ3 sh ea r st res s normal stress K0=1 8/26 Context From reality to laboratory From laboratory to numerical modelling Conclusion Eq

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