For automatic load case combination in RFEM and RSTAB, you have to enter the possible interaction of load cases. In addition to the simultaneous or alternative occurrence of all load cases of an action, an option for different combination conditions is possible.
Structures react differently to wind action depending on stiffness, mass, and damping. A basic distinction is made between buildings that are prone to vibration and those that are not.
RFEM and RSTAB provide the option to create load and result combinations automatically according to the combination expressions defined in the standards. In this case, imperfections can be set differently for each combination expression.