FAQ 000461 ES

Modeling | Structure RFEM RSTAB

Is it possible in RSTAB and RFEM to define a nodal support in such a way that no lifting support reactions are transferred?


Yes, this is possible in RSTAB and RFEM. You can apply nonlinear properties to nodal supports (failure criteria for tension and compression forces, stress-strain diagram, and stiffness diagrams).

The list of the nonlinearities includes the following possibilities:

  • Failure of the component if support reaction or moment is negative or positive
  • Complete failure of support if support reactions are negative or positive
  • Partial activity
  • Diagram
  • Friction in dependence of other support reactions
  • Failure if support reaction is negative or positive

The two options control if the support can resist only positive or negative reactions. If the internal reaction acts in the prevented direction, this component of the support fails. The other supports and restraints remain effective.

Failure all if support reaction is negative or positive

In contrast to the failure of an individual component, the support fails completely as soon as the component becomes ineffective.

Nonlinearly acting supports are shown in a different color in the graphic. In the table, a support component with nonlinear properties is indicated by a blue box.

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Le proporcionamos consejos y trucos para ayudar a iniciarse con los programas principales de RFEM y RSTAB.