Wind Uplift

Definition

Wind Uplift refers to the upward forces on a structure caused by negative aerodynamic pressures that result from certain wind conditions.

Purpose

The purpose of accounting for wind uplift in design and construction is to prevent structural damage or failure due to the lifting forces generated by wind. Proper measures ensure roofs and other components remain securely attached.

Examples of Use

• Roofing Systems: Designing roofs to resist uplift forces in high-wind areas.
• Aircraft Hangars: Ensuring the structure can withstand wind uplift to protect aircraft.
• Solar Panels: Securing solar panel installations to prevent uplift in windy conditions.

Related Terms

• Aerodynamic Pressure: The pressure exerted by air movement over a surface.
• Anchor: A device used to secure a structure to prevent wind uplift.
• Shear Force: A force that acts parallel to the surface of a material.

Notes

Wind uplift is a significant consideration in hurricane-prone areas and regions with frequent high winds. Building codes often include requirements for resistance to wind uplift.