Abstract
In the study we estimate the snow loads at building collapse accidents based on the snow depths, precipitation and wind speeds gaged at the closest station. CSL (Conservative Snow Load) is the load evaluated on the assumption that the freshly fallen snow accumulates without melting when it snows day by day. We compare the CSLs at accidents and the GSLs (ground snow load announced by Korean government), and the unit weights at accidents and the snowpack unit weight formula used to estimate GSL. The accidents have occurred frequently near East Sea coast and the unit weights at the accidents are considerably greater than the snowpack unit weight formula. Especially the building collapses in Ulsan and Busan which have comparatively warm winter seasons are caused by highly water content wet snows. The snowpack unit weight formula developed on the assumption of low air temperature would not proper to Korean climate. Development of a new snowpack unit weight formula, therefore, needs for safety Korea.
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