FAQ 000321 PT

Cálculo RFEM RSTAB

When defining or calculating a result combination, I get the message that the addition is not allowed due to failing members. What does this message mean?

Resposta

This message indicates that you ca obtain wrong results when using result combinations together with nonlinear elements (for example, tension members).

For example, it can happen that a tension member of a system is subjected to compression in a load case and therefore fails. The results of this failed member are indicated as zero in this load case. In another load case, the tension member can indeed be under tension, thus removing the member from the system.

Now if the results of these two load cases are added by means of the result combination, the results are summed up from two different structural systems. When using nonlinear elements (for example member with failure due to compression), the load combination should be used.

If you are not sure that the individual load cases are based on the same structural systems, you can also use the result combination.

Contacto

Contacto da Dlubal

Encontrou a sua pergunta? Se não for o caso, entre em contacto connosco ou envie-nos a sua questão através do formulário online.

+49 9673 9203 0

(falamos português)

info@dlubal.com

RFEM Programa principal
RFEM 5.xx

Programa principal

Software de engenharia estrutural para análises de elementos finitos (AEF) de estruturas planas e espaciais constituídas por lajes, paredes, vigas, sólidos e elementos de contacto

RSTAB Programa principal
RSTAB 8.xx

Programa principal

Software de engenharia para o dimensionamento de estruturas reticuladas de pórticos, barras e treliças, com cálculos lineares e não-lineares de esforços internos, deformações e reações de apoio