This is a beta release of the new ATC Hazards by Location website. Project: Designer: Climatic Data. Engineering Department at Montana State University and the Montana Ground Snow Load Values for Ontario and Quebec. The Ground Snow Load ranges from 45 lbs to 65 lbs per horizontal square foot depending on each community and the zone in which it is located. to offset the cost of this effort to: Consideration should also be given to any conditions that might The regions where the map is “capped” by the upper limit of 429 psf maximum prediction are indicated in black on the map overlay. GroundSnowByZip is a tool for Architects, Engineers and Builders to easily determine the ground snow load (Figure 7-1 (Table 7-1 for Alaska) of ASCE 7-05) for any location in the continental United States.To determine the design ground snow load… The Utah Ground Snow Load Map uses three options for location input. Span Calculator for Wood Joists and Rafters also available for the Android OS. Snow loads are influenced by elevation, general weather and moisture patterns, slope direction, exposure, roof (or trail bridge) configuration, and wind direction and severity. To calculate Roof Snow Load per Residential Building Code: 0.7 x pg (ground snow load) = pf (roof snow load) Roof Snow Load Examples: Above line: 0.7 x 60 psf = 42 psf Below line: 0.7 x 50 psf = 35 psf . Engineering judgement must be exercised where the predicted elevation greatly differs from the actual elevation at the site. The sloped roof snow load, p s, shall be obtained by multiplying the flat roof snow load, p f, by the roof slope factor, C s: p s = C s p f Ground snow load is defined as the weight of snow on the ground . available in the snow loads tables in the downloadable copy of the snow The SEAU and the authors cannot accept responsibility for prediction errors or any consequences resulting therefrom. Validation of the dataset, statistical analysis, and spatial mapping were externally reviewed by MetStat, Inc. These predictions are calculated using an adaptation of PRISM, which is a weighted linear regression model that uses elevation to calculate ground snow load at a local level. elevation). In other locations, elevations over 9,000 ft are also considered less accurate due to the limited number of stations at these elevations, and sometimes produce overly-conservative values. A snow load is the burden placed on the ground or on a structure by snow, rime, and ice that has accumulated. 60 ground snow PSF BELOW LINE 50 PSF 50 ground snow PSF This document is not legally binding. influence snow accumulation at the specific site of interest relative psf (pounds per square foot) ABOVE LINE 60 PSF . The amount of packed snow for the area, over a period of time, will determine a Snow Zone. Ground Snow Load (Pg) This edit box is used to define the Ground Snow Load for the Building or Shape. surface (IBC, 2012). to 50 lbs. Design Ground Snow Load for redding, CA 96099. The latitude and longitude of the site may be entered on the top line. The ground snow load is … How snow load can damage your buildings. From our example, our ground load and flat roof snow load were found to be 30 psf and 21 psf, respectively. tool. in determining ground snow loads in Montana (snow loads increase with remember that elevation is a critical parameter stations, 302 had enough data to allow calculation of 50-year ground snow loads. The ground snow load values (in pounds per square foot and kilopascals) represent 50-year ground snow load estimates for a particular site at the interpolated elevation from the given latitude and longitude. Snow, rime, and ice that has accumulated association of structural engineers are bounded by upper... 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