When entering the building values, I have a wall at a location on a ceiling that is not supported underneath. Which modeling options are available for this?

Answer

If the load-bearing capacity of the wall plate is neglected and applied to the ceiling only as a load by line load, the result is excessive deformations.
Without taking the nonlinear property of the masonry into account, minor deformations result.
In principle, there are 3 options available in RFEM.

  • Line release where only vertical compressive forces are transferred. The nonlinear property is only applied directly to the connection line of both surfaces during the force transmission.
  • nonlinear material "Isotropic Masonry". The tension stresses in the x- and y-direction (i.e. vertical and horizontal) are iteratively reduced to the set limit values by reducing the stiffness. Using this model, it is possible to represent the behavior of a masonry wall most realistically, since the tension stresses are reduced in the direction of the mortar joints. The "RF-MAT-NL" add-on module is required for this.
  • nonlinear stiffness type "Membrane Without Tension". The tension stresses in the principal stress direction are iteratively reduced by reducing the stiffness.

Keywords

Masonry Modeling Isotropic material Without membrane tension Wall Nonlinear

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RFEM Main Program
RFEM 5.xx

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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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