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I noticed one sentence when reading the EC1 on snow actions:
"The loads should be assumed to act vertically and refer to a horizontal projection of the roof area."
My calculated snow loading is sk=0,80kN/m2.
My roof angle is 25degrees.
Should this quote mean that my snow loading on the roof plane is 0,80kN/m2 / cos25 degrees=1,10kN/m2?
See picture attached
Did everyone see the images of the accumulated snow drift on the news over the weekend? This really emphasises the importance of EN1991-1-3 Annex B4 and the importance of treating snow drift on structures with respect.
Designers' Guide to Eurocode 1: Actions on bridges - J-A Calgaro, M Tschumi, & H Gulvanessian.
Designers' Guide to EN 1991-1-4 Eurocode 1: Actions on structures, general actions part 1-4. Wind actions - N. Cook.
Manual for the design of building structures to Eurocode 1 and Basis of Structural Design - IStructE.
Designers' Guide to EN 1991-1-2, EN1992-1-2, EN 1993-1-2 and EN 1994-1-2 - D. Moore, C. Bailey, T. Lennon & Y. Wang.
Civiltools - EC1 Tools (An online application for the calculation of wind and snow loads according to Eurocode 1.)
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