Last Updated July 17, 2017

Features

  • Linear analysis using linear-elastic soil properties.
  • Equivalent Linear analysis, which varies soil properties for successive iterations (Damping Ratio and G-Modulus vary with cyclic strain for successive iterations).
  • Generalized data point functions for specifying material properties, including functions for overburden correction function (Ks), shear stress correction (Ka), cyclic number, pore pressure, damping ratio, and G modulus reduction.
  • Imported earthquake records; both horizontal and vertical acceleration vs. time records can be used.
  • Scale peak acceleration and time duration of imported earthquake records for site-specific conditions.
  • Boundary condition types include X and Y displacements, forces, pressures, and spring constants, as well as stress, fluid pressure, and self-weight gravity loading.
  • Definition of liquefaction potential using a collapse surface and steady-state strength.
  • Structural elements for soil-structure interaction; specifying both axial and flexural stiffness can affect the dynamic response of the system.
  • History nodes show complete record of displacement, velocity and acceleration.
  • Many ways to view results, including x-y plots, contours, deformed mesh, animation, spectral analysis, data tables, and Mohr circles.
  • View most result parameters for static conditions, dynamic conditions, or both.
  • View displacements, velocities and accelerations as relative values (the finite element results) or as absolute values (the results added to the earthquake record).
  • And many more!

Integration with Other Applications

Use QUAKE/W results in a SLOPE/W stability analysis

Earthquake shaking of ground structures creates inertial forces that may affect the stability of the structures. The shaking may also generate excess pore-water pressures. Both the dynamic stress conditions and the generated pore-water pressures can be taken into SLOPE/W to study how an earthquake affects the earth structure stability and deformation. SLOPE/W can perform a Newmark-type of deformation analysis to determine the yield acceleration and estimate the permanent deformation of the earth structure.

Dissipate excess QUAKE/W pore-water pressures in SEEP/W

Excess pore-water pressures generated during an earthquake can be brought into SEEP/W to study how long it will take to dissipate them.

Engineering Methodology Book

The included QUAKE/W engineering methodology book discusses the whys and hows of modeling, as well as the theory and formulations behind the QUAKE/W product. Dynamic Modeling with QUAKE/W is a full-length book about proper modeling techniques: how to think before, during and after setting up and solving a model. The book includes chapters devoted to:
  • Numerical Modeling: What, Why and How
  • Geometry and Meshing
  • Material Properties
  • Bounday Conditions
  • Analysis Types
  • Functions in GeoStudio
  • Numerical Issues
  • Visualization of Results
  • Illustration and Verification Examples
  • Theory