Hundreds of weather stations, ships, and aircraft across Canada, the US, and the rest of the world report readings of temperature, pressure, wind, moisture and precipitation. For an elevation of 212 metres, the ground snow load would be: 1.2 + (1.4/215) * (212-75) = 2.1 kilopascals . I-7) Wind load — Walls (Fig. where, I s = importance factor for snow load as provided in Table 4.1.6.2., Ground snow loads, p g , for the contiguous United States can generally be determined using this map. A second alternative to using the Zone map found below would be to use the chart found on the Zone map to determine the ground snow load for the specified geodetic elevation. This paper describes the development of a new snow load map for defining ground snow loads for building (roof) design in the state of Colorado. An estimated snow depth map Understanding current conditions is the starting point, and the most critical part, of any weather forecast. Primary Structural Action (Fig. The ground snow load map shown below was scanned from the ASCE 7-10 (Figure 7-1). Videon and J.P. Schilke, Civil & Agricultural Engineering, Montana State University, August 1989. Specified Snow Load (1) The specified load, S, due to snow and associated rain accumulation on a roof or any other building surface subject to snow accumulation shall be calculated from the formula, S = I s [S s (C b C w C s C a) + S r]. The newly proposed Colorado maps aim to ensure that structures designed across the state achieve the target safety index of 3 defined in ASCE 7. The structural design and field review of non-structural elements, restraints, and anchorages shall be provided by a professional engineer registered in B.C. 1. 7. The Canadian Ice Thickness Program has two data collections that users can access anytime online: Ice Thickness Program Collection, 1947 to 2002 [XLS;4.1 MB] | Metadata; Ice Thickness Program Collection, Fall 2002 to 2020 [XLS; 182 KB]; The ‘Original Ice Thickness Program Collection’ contains ice thickness and snow depth measurements for 195 sites. This note describes the process to update a Canadian historical snow survey dataset to 2016 and the production of a 0.1° gridded version for research applications. Snow drift load and distributions for areas adjacent to roof obstructions. Analyses. In the 1985 edition of the National Building Code of Canada (NBCC) the intensity of the specified snow load at any location on a roof is obtained by multiplying the ground snow load for … Design shall accommodate all applicable load conditions (dead loads, live loads, wind loads, and seismic loads) and must conform to the current edition of the BC Building Code. 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