Steel Buildings in Europe

Title APPENDIX B. Worked Example: Wind action on a single-storey building 6 of 11 3 - 51 Trough Ridge - 1,3 - 1,3 - 0,6 - 0,6 - 1,3 Ridge - 1,3 - 1,3 4 m 4 m 8 m 1,6 m d = 60 m - 1,3 - 0,6 Wind b = 32 m - 0,5 - 0,5 - 0,6 - 0,5 - 0,5 F G G G I I I I H H H H G F Figure B.4 c pe,10 for zones F, G, H and I with wind on gable 2. Wind on long side i. Ridges are perpendicular to the wind direction:  = 0° ii. Pitch angle  = 14° iii. h = 8 m iv. b = 60 m (crosswind dimension) v. h < b , so the reference height is: z e = h = 8 m EN 1991-1-4 § 7.2.5(1) Figure 7.8 vi. d = 32 m vii. 2 h = 16 m viii. e = 16 m ( b or 2 h , whichever is smaller) ix. e /4 = 4 m x. e /10 = 1,6m EN 1991-1-4 § 7.2.5(1) Figure 7.8 Figure B.5 defines the external pressure coefficients c pe,10 on roofs for zones F, G, H, I and J with a wind on long side. EN 1991-1-4 § 7.2.7(2) Figure 7.10c