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As specified in article 2.2.3(5) this formula assumes a linear relation between the actions and corresponding deformations. Therefore, this relative deformation check cannot be executed for non-linear combinations.
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Permanent action (G)
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Leading Variable action (Q1)
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Accompanying Variable action (Qi)
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EN-SLS Characteristic
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EN-SLS Frequent
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EN-SLS Quasi-Permanent
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In case the check is executed for a single variable load case, this is seen as a Leading Variable action.
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In case the check is executed for a Linear serviceability combination or an Envelope serviceability combination, it is not possible to determine if the variable load cases are leading or accompanying. Therefore, every variable load case in such a combination is seen as a Leading Variable action.
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Precamber according to article 7.2 is not supported.
Serviceability Limit State
The Serviceability Limit State verifications are executed according to article 2.2.3.
Both the instant and the final relative deflections (including creep) are checked.
The final deformation is calculated according to formula (2.2).
For each load case, the final deformation with creep is calculated based on the type of action, as given in formulas (2.3), (2.4), (2.5):
The above is determined automatically in case Serviceability combinations according to the code are used: