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Element Library


Frame element

  • Multiple non-prismatic segments of element length
  • Point, uniform and trapezoidal loading in any direction
  • Temperature and thermal gradient loading

  • Prestress loading

  • Automated end offset evaluation
  • Moment and shear releases

  • Built-in steel sections

  • Joint offsets, cardinal point and mirroring of section
  • No tension/no compression element

Shell element

  • General quadrilateral or triangular element

  • Orthotropic material properties

  • Six degrees of freedom per joint
  • Shell, plate or membrane action
  • Thick shell option
  • Gravity, uniform, pressure, wind pressure coefficient, temperature and thermal gradient loading

Plane element

  • Quadrilateral or triangular plane stress or plane strain element
  • Orthotropic material properties
  • Gravity, thermal, surface pressure and pressure gradient loading
  • Asolid element
  • Quadrilateral or triangular axisymmetric element
  • Orthotropic material properties
  • Gravity, thermal, surface pressure and pressure gradient loading

Solid element

  • Three dimensional 8 node brick element
  • Anisotropic material properties
  • Gravity, thermal surface pressure and pressure gradient loading

Spring element

  • Joint to ground (support) spring
  • Global and skewed springs
  • Coupled 6x6 user-defined spring stiffness option (for foundation modeling)

Link element

  • Link may be placed between any two joints or from joint to ground (support)
  • Multilinear elastic
  • Viscous damper with nonlinear exponent on velocity term

  • Gap (compression only) and Hook (tension only)
  • Uniaxial plasticity (all six degrees of freedom)

  • Base isolator with biaxial plasticity behavior
  • Base isolator with friction and/or pendulum behavior
  • Frame plastic hinge element for use with static and dynamic nonlinear analysis
  • Axial, flexural, shear and torsional hinge
  • Axial load-biaxial moment interaction
  • Multilinear behavior including softening
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