Loads for Pole Buildings
Loads for pole buildings
- Loads shall be in according to the requirements of the applicable Code in the above item “Code.”
- In most cases since pole buildings are light weight, Wind loads will be bigger, control, than Seismic loads.
- Check Google-earth to determine if your buildings is in wind exposure category B, C, or D.
- Roof dead load is smaller in pole building due to the absence of:
- Asphalt shingles, metal deck is used instead;
- Plywood or OSB roof sheathing;
- Ceiling joists and Gyp board sheathing;
- Thick insulation
A typical dead load range from 3 to 10 psf
Deflection for pole buildings
- For Pole building used for shop, office, or any typical use, the deflections shall be controlled by the applicable Code such as UBC or IBC.
- For Farm buildings, the total dead and live load deflection can not be more than L/180.
- For Green houses, the total dead and live load deflection can not be more than L/120.
If you have heavy Snow Loads on pole buildings, try:
- Plywood under the metal roof deck;
- Reducing the spacing between the purlins will help.
- Increasing the metal deck gauge to 22 .
- Two layers of metal deck, double, on the top of each other. This is the contractors choice.