Snow loads are applied to all above ground pipe elements and fittings in vertical direction downward. The load depends on slope angle of each pipe element. To remove snow loads on some elements, set to zero the snow shape factor.
Available following codes for snow loads:
ASCE 7-22 (USA)
Ca - Snow Shape Factor (specified in pipe properties)
Dk – Insulation Outer Diameter (specified in pipe properties)
Ct - Thermal Coefficient (specified in pipe properties)
Cs - Slope Factor
IBC 2021 (International)
Same as ASCE 7-22
KBC 2016 (Korea)
Ca - Snow Shape Factor (specified in pipe properties)
Dk – Insulation Outer Diameter (specified in pipe properties)
Ct - Thermal Coefficient (specified in pipe properties)
Cs - Slope Factor
EN 1991-1-3:2003+A1:2015 (European Union),
- snow shape factor (specified in pipe properties)
Dk – Insulation outer diameter (specified in pipe properties)
Ct - Thermal Coefficient (specified in pipe properties)
Ce - Exposure Coefficient (Windswept 0.8, Normal 1.0, Sheltered 1.2)
- Slope Factor
TKP EN 1991-1-3:2003+A1:2015 (Belarus),
Same as EN 1991-1-3:2003+A1:2015
GB 50009-2012 (China),
- snow shape factor (specified in pipe properties)
Dk – Insulation outer diameter (specified in pipe properties)
- slope factor
SP 20.13330.2016 (Russia),
- snow shape factor (specified in pipe properties)
Dk – Insulation outer diameter (specified in pipe properties)
NBC 2020 (Canada)
Ca - snow shape factor (specified in pipe properties)
Dk – Insulation outer diameter (specified in pipe properties)
Cb=0.8
Cw=1
Cs - slope factor
Property |
Description |
Insulation Outer Diameter |
Insulation outer diameter is used for calculation of snow distribution area |
Snow Region |
Select snow region number from SP 20.13330.2016 maps |
Load Type |
SUS - if snow load assumed as sustained, OCC - if snow load is assumed as occasional |
Ground Snow Load |
|
Rain Load |
|
Exposure Factor, Ce |
Surrounding environment A. Strong windy areas with roofs exposed to all sides without windshields by surrounding environment such as terrain, tall structures, trees, etc. 0.8 B. Strong windy areas with a slight windshield 0.9 C. Removal of snow by wind is a location where the roof load can’t be expected to decrease due to terrain, high structures or some trees nearby. 1.0 D. Areas with low wind impacts and areas with roof tops and windshields due to topography and high structures or some trees 1.1. E. A dense forest area with little wind impact, with roof 1.2 located between dense conifers |
Importance Factor |
|
mu1(0) |
|
Exposure |
|
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