v5.01.103 SDND103 - Post subject to dynamic axial stress

Summary

The aim is to calculate the response of a column subjected to any seismic loading. The column is modelled by an undamped mass-spring system, its connection with the ground by a non-linearity such as force-displacement.

We test the discrete element in traction-compression, the calculation of natural modes and the calculation of the transient response by modal recombination taking into account a non-linearity of the effort-displacement type. The initial speed is assumed to be non-zero and the load is of the type of acceleration imposed on the ground.

The results obtained are in very good agreement with the reference results, which are analytical results.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary conditions and loads
  • 1.4. Initial conditions
• 2. Reference solution
  • 2.1. Calculation method used for the reference solution
  • 2.2. Benchmark results
  • 2.3. Uncertainty about the solution
  • 2.4. Bibliographical references
• 3. Modeling A
  • 3.1. Characteristics of modeling
  • 3.2. Characteristics of the mesh
  • 3.3. Tested sizes and results
• 4. Summary of results