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Abstract
In this paper, presented at CRRELs First International Conference on Snow Engineering, a simple numerical heat transfer model is applied to calculate the reduction of snow load on a roof caused by the heat loss through the roof. Thirty years of data on precipitation, temperature and wind speed for a meteorological statoin on the southern coast of Norway are used. A snowfall event causing maximum load throughout this period is studied for roofs with two different heat transmittance values corresponding to typical one- and two-layer glass roofs. The loads with certain return periods are calcualted and comparted to corresponding loads on the ground to estimate the thermal reduction factor.
In this paper, presented at CRRELs First International Conference on Snow Engineering, a simple numerical heat transfer model is applied to calculate the reduction of snow load on a roof caused by the heat loss through the roof. Thirty years of data on precipitation, temperature and wind speed for a meteorological statoin on the southern coast of Norway are used. A snowfall event causing maximum load throughout this period is studied for roofs with two different heat transmittance values corresponding to typical one- and two-layer glass roofs. The loads with certain return periods are calcualted and comparted to corresponding loads on the ground to estimate the thermal reduction factor.
Date
7/1988
7/1988
Author(s)
Rune Sandvik
Rune Sandvik
Page(s)
317-324
317-324
Keyword(s)
snow load; thermal transmittance; heat transfer
snow load; thermal transmittance; heat transfer