Assalam-o-alaikum,
For calculating required area of a column footing, we normally use 'Dead+Live' load combination, for locations having no or very small snow loads comparable with live load. However, there are several hilly areas in Pakistan ( like Murree, and Gilgit etc), where the snow load is not only much higher than the live load (especially for single storey structures), but may also sustain on the roof for many days.
My question (with reference to ACI 318-08 and ASCE 7-05 codes) is: What load combination we should use to determine required area of column footings, for these high snow fall areas? Whether 'Dead+Live', 'Dead+Snow' or some other?
Would appreciate your opinion and comments, supported by relevant references, if possible.
Thanks.