I have a question about the results of the serviceability limit state design: How is the increment of the dead load by the factor of 1.8 and the imposed load by 1.48 explained in the result combinations for the SLS design?

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Accepted Answer

These increments result from the creep components in a quasi-permanent combination. You can find the overview of which combinations are to be analyzed in the serviceability limit state according to DIN EN 1995-1-1 here or in the links of the FAQ.The creep components are then simply added to the characteristic deformation; for example, with 0.8 &#215; self-weight. This results in the factor of 1.8 (see also Section 2.2.3 in EN 1995‑1‑1).In this specific case, the following coefficients must be applied for the quasi-permanent design situation:Gk ⋅ (1 + 0.8) + Qk ⋅ (1 + 0.6 ⋅ 0.8) = Gk ⋅ 1.8 + Qk ⋅ 1.48

Results of Serviceability Limit State Design

I have a question about the results of the serviceability limit state design: How is the increment of the dead load by the factor of 1.8 and the imposed load by 1.48 explained in the result combinations for the SLS design?