Projects

Seismic Protective Design of Low-Enriched Uranium Storage Facility

  • Nuclear storage facility
  • Passive energy dissipation
  • Surface-supported cylinders
  • Layered soil site

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Seismic Qualification of Spent Fuel Storage Installation Expansion

  • Nuclear storage facility
  • Structure-soil-structure interaction
  • Large SSI model
  • Layered soil stratum over sloping rock

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Seismic SSI Analysis of Steel Gravity Structure

  • Offshore gravity-based platform
  • Nonlinear foundation model
  • Large-scale SSI model
  • Layered soil stratum over firm halfspace

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Seismic SSI Analysis of New Reactor Standard Design Certification

  • Embedded structure with adjoining buildings
  • Large-scale SSI model
  • Flexible base slab incorporating shear keys
  • Wide range of generic soil profiles

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Seismic SSI Analysis of Pile-Supported LNG Storage Tank

  • Structure-soil-pile interaction
  • Large pile group interaction effects
  • Fluid-structure interaction
  • Incoherent ground motion effects

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Effects of Seismic Wave Incoherence on Nuclear Building Response

  • Large soil/structure model
  • Detailed vs lumped parameter structure model
  • Coherent vs incoherent seismic input
  • Response simulation method

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Prediction of Experimental Results from Steel Pile Tests

  • Single and pile group tests on steel piles
  • Low-Amplitude Forced Harmonic Vibrations
  • Foundation radiation damping effects
  • Pile / soil de-bonding effects

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Seismic SSI Analysis of LNG Tank underlain by Liquefiable Soil

  • Structure-soil-pile interaction
  • Large pile group interaction effects
  • High Performance Computing
  • Soil improvement to mitigate liquefaction

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Ambient Vibration Analysis of National Ignition Facility

  • Vibration sensitive articles
  • Random vibration analysis
  • Surface wave propagation modeling
  • Predicted versus measured vibrations

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Vibration Transmissibility Analysis in Underground Structures

  • Vibration sensitive articles
  • Forced vibration analysis
  • Tunnel-soil-tunnel interaction effects
  • Predicted versus measured vibrations

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Hybrid SSI Analysis of Steel Gravity Structure Platform

  • Detailed SGS and Topsides
  • Foundation impedance linearization
  • Frequency/time domain alignment
  • Flexible vs rigid foundation SSI response

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PRA-Based Seismic Margin Study of New Reactor Design

  • Large-scale structural model
  • Probabilistic analysis using LHM
  • Foundation sensitivity study
  • Variable soil and structure parameters

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