# For the results of a result combination, I noticed that the result for many extreme locations is zero, although there must be results. Why is that?

These zero values are caused by the superposition type in the combination criterion: if you analyze several load cases or combinations in one result combination and define the load cases as 'Variable', then zero is shown for the maximum or minimum value at the locations with the same signs. When using the variable ('eventual') superposition, it can also happen that no load case or no combination becomes effective. Zero is smaller than the smallest maximum value or greater than the greatest minimum value.

A solution would be to define the load cases or combinations contained in the result combination as 'Permanent', for example: RC1 = CO1/Permanent or CO2/Permanent or CO3/Permanent or CO4/Permanent

The load cases or combination are then compared as permanently acting. Thus, the obtained extreme values are unequal zero also for the areas with the same signs.

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