FAQ 000787 ES

Modeling | Structure RSTAB

A high-rise steel structure is to have bracings in every level. The first level, however, is to be made out of reinforced concrete, and therefore the horizontal bracing should function via this concrete plate. How can I model this rigidly fixed concrete plate in RSTAB?


If you want to model bracing diaphragms in your structural system, you can use members of the types "Rigid" and "Coupling." To model a floor diaphragm, you can specify a diagonal member (or two) that simulates the surface.

If two nodes are connected by a coupling with each other, then this means that the internal forces are directly transferred from node to node. There are no "losses," because the members have an infinite stiffness.

You can add any hinges to the member type "Rigid." For the couplings, there are four variants with and without hinges.

A more accurate modeling is possible in the FE program RFEM, because the beam model covers the effect of diaphragms and plates only approximately. You can, for example, create the beam model in RSTAB, then open it as a copy in RFEM and add surface elements to it.

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Su soporte es el mejor con diferencia

“Muchas gracias por su útil información.

Me gustaría felicitar a su equipo de soporte. Estoy siempre impresionado por la rapidez y profesionalidad de las respuestas a las preguntas. En el sector del análisis estructural, utilizo varios programas que incluyen el contrato de servicio, pero su soporte es el mejor con diferencia.”