FAQ 000787 ES

Modelado | Estructura 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?

Respuesta

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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RSTAB Programa principal
RSTAB 8.xx

Programa principal

El software de ingeniería estructural para el análisis y dimensionado de estructuras de barras, pórticos y entramados realizando cálculos lineales y no lineales de los esfuerzos internos, deformaciones y reacciones en los apoyos