Structural Analysis Wiki

Technical Terms Used in Dlubal Software

The Dlubal Structural Analysis Wiki explains technical terms used in structural analysis and design. The terms are given in alphabetical order and are usually used in Dlubal Software.

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S Super Combination

A super combination superimposes the load case results of different construction stages of a model.

Behind this analysis is the general superposition principle. It is based on the superimposition of equal physical quantities with a linear relation between the action and the superimposed quantity.

To visualise the results, a super combination extends this law in the area of technical mechanics to construction stages. In structural mechanics, a construction stage is a static structure with a definite configuration of structural elements. If this configuration of the supporting elements in the supporting structure (angle, length, shape, and so on) is changeable, the construction stage is present. For these cases, a super combination superimposes several results of construction stages determined linear-elastically with different configurations of supporting elements and represents them as envelopes on a model with any configuration.

Typical Application Areas

  • Photovoltaic systems with hydraulic module orientation
  • Beam models with temporary support elements during the assembly

Entering in RSTAB

Supercombinations can be created in RSTAB in the Data navigator under "Load Cases and Combinations" → "Super Combinations" by using the load situations from several model files of a similar structure, which has different configurations.