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Example3. Model Building

  • define units
  • define model
  • define recorders for output
  • define & apply gravity

 

Elastic Element

Effective axial and flexural stiffnesses are defined at the element level

  • Build model – nodes, supports, elements, etc.
  • elasticBeamColumn elements
  • elasticBeamColumn elements
  • define & apply gravity load

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Distributed Plasticity Element, Uniaxial Section

Axial and flexural stiffnesses/strength are defined independently at the section level

 

  • Build model – nodes, supports, elements, etc.
  • uniaxial inelastic section (moment-curvature)
  • nonlinear beam-column elements
  • define & apply gravity load

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Distributed PlasticityElement, Fiber Section

The section is broken down into fibers where uniaxial materials are defined independently. The program calculates flexural and axial stiffnesses/strength by integrating strains across the section.

 

  • Build model – nodes, supports, elements, etc.
  • uniaxial inelastic material (stress-strain)
  • fiber section
  • nonlinear beam-column elements
  • define & apply gravity load

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