1. What is the Wind Load Formula?

Definition: This calculator computes the wind force acting on a structure using the basic wind load formula.

Purpose: It helps engineers and architects determine the wind forces that structures must withstand for safe design.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Wind force (Newtons, N)
• \( q \) — Dynamic pressure (Pascals, Pa)
• \( A \) — Projected area (square meters, m²)
• \( C \) — Drag coefficient (dimensionless)

Explanation: The dynamic pressure represents wind kinetic energy, multiplied by the area and shape coefficient.

3. Importance of Wind Load Calculation

Details: Accurate wind load estimation ensures structural integrity, safety against wind forces, and compliance with building codes.

4. Using the Calculator

Tips: Enter the dynamic pressure in Pa, projected area in m², and drag coefficient (default 1.0). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: How do I determine dynamic pressure (q)?
A: q = 0.5 × ρ × v², where ρ is air density (1.225 kg/m³ at sea level) and v is wind speed in m/s.

Q2: What are typical drag coefficients?
A: 1.0 for flat plates, 0.5-1.2 for buildings, 0.4 for spheres, and 1.3-1.4 for long cylinders.

Q3: Should I use peak or average wind speed?
A: Use peak gust speeds for most structural calculations as they represent maximum loads.

Q4: How does building height affect wind load?
A: Wind speed increases with height, so taller buildings experience greater pressures.

Q5: What safety factor should I apply?
A: Building codes typically require a safety factor of 1.5-2.0 on calculated wind loads.