Steel Buildings in Europe

Title APPENDIX A. Worked Example: Snow load applied on a single-storey building 8 of 8 3 - 43 3.5.2. Roofs where drifting occurs behind parapets at eaves  1 = Min(2 h / s k ; 2 b 2 / l s ; 8) where: l s = Min(5 h ; b 1 ; 15 m) h = 3,00 m b 1 = 12,50 m b 2 = 25,00 m s k = 0,65 kN/m 2 5 h = 15,00 m ; l s = 12,50 m ; 2 h / s k = 9,23 ; 2 b 2 / l s = 4,00   1 = 4,00 And: s =  1 s k = 2,60 kN/m 2 EN 1991-1-3 Annex B § B.4 3.5.3. Roofs where drifting occurs behind parapets at gable end  1 = Min(2 h / s k ; 2 b 2 / l s ; 8) where: l s = Min(5 h ; b 1 ; 15 m) h = 3,00 m b 1 = 40,00 m b 2 = 25,00 m s k = 0,65 kN/m 2 5 h = 15,00 m ; l s = 15,00m ; 2 h /s k = 9,23 ; 2 b 2 /l s = 5,33   1 = 5,33 And: s =  1 s k = 3,46 kN/m 2 EN 1991-1-3 Annex B § B.4 0,00 kN/m 2 12,50 m 12,50 m 15,00 m 2,60 kN/m 2 2,60 kN/m 2 3,46 kN/m 2 Snow behind the parapet at gable end Snow behind the parapets at eaves Figure A.8 Exceptional snow drifted on the lower roof in the case of roofs where drifting occurs behind parapets at eaves