Wind force calculation of billboards on the roof

The wind calculation of billboards on the roof is very necessary, not only because customers need parameters, but also as a guarantee for safety. Many companies choose the size of the steel structure based on their installation experience, but it must be practical to calculate the wind force on the billboards and the force on the steel structure.

The stress of the billboard on the roof is mainly caused by the following factors:

1. Surrounding environment: urban center or countryside, and whether there are buildings around;

2. Height above the ground: the higher the wind is, the stronger the wind is;

3. Height of billboard: the higher the height, the greater the stress;

4. Billboard area ratio: the proportion of advertising pictures in the total area.

The formula is as follows

ω k= β z* μ s* μ z* ω 0

BZ: 1-1.5 Gust coefficient (instantaneous wind)

US: stressed area ratio (1.3+1.5) * 0.7 (positive wind pressure+negative wind pressure) billboard area ratio

UZ: wind pressure height variation coefficient: see table

If you cannot understand, please contact us.