How to calculate wind load pressures

Wind load pressures applied to a structure depends on a number of factors, such as the wind velocity, the surrounding topography, the size, and the shape, of the structure. The assumption is that horizontal wind load pressures act normally on the face of the structure. Computations for wind in all directions are calculated to find the most critical loading conditions. Consideration of suction from pressure differential forces caused by wind is also determined in the case of windward and leeward walls.