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Snow load - Duopitch roof
EuroCode - EN 1991 - Snow
Author: Design Forms s.r.o.
Created: 3/3/2017
Last updated: 3/3/2017
Description:
Snow load - Duopitch roof
Annotation:

Characteristic value of snow load on the ground and Coefficients


These parts of calculation are described in the annotation for Coefficients for the snow load

Geometry


Left and right slope is drawn here in degrees.

Left and right side shape coefficients are calculated.


















Angle of pitch of roof α 0° ≤ α ≤ 30° 30° ≤ α ≤ 60° α ≥ 60°
μ1 0,8 0,8•(60 - α)/30 0,0

Calculation of the snow load




Case (i) - Undrifted snow


Snow loads s1 and s2 are calculated according formula (5.1) in kN/m2



Case (ii) and Case (iii) - Undrifted snow


Shape in these cases depend on selected national annex.

Standard shapes are calculated according formula (5.1) with proper coefficient μi

Explanation of symbols


s1 - Snow load on the left side of the roof [kN/m2]

s2 - Snow load on the right side of the roof [kN/m2]

α1 - Roof slope on the left side of the roof [°]

α2 - Roof slope on the right side of the roof [°]

μ1(α1) - Shape coefficient on the left side of the roof

μ1(α2) - Shape coefficient on the right side of the roof