Wind Load Formula:
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Definition: This calculator estimates the wind force acting on a structure based on dynamic pressure, surface area, and pressure coefficient.
Purpose: It helps engineers and builders determine wind loads for structural design according to UK standards.
The calculator uses the formula:
Where:
Explanation: The dynamic pressure represents wind speed effect, multiplied by the area exposed to wind and adjusted by the shape factor (pressure coefficient).
Details: Proper wind load estimation ensures structural stability, safety against wind forces, and compliance with building regulations.
Tips: Enter the dynamic pressure in Pa, surface area in m², and pressure coefficient (default 1.2). All values must be > 0.
Q1: How do I determine dynamic pressure (q)?
A: q = 0.613 × V², where V is wind speed in m/s. For UK, check local wind maps for design speeds.
Q2: What's a typical pressure coefficient?
A: Cp varies by shape: 1.2 for flat surfaces, 0.8 for cylinders, 2.0 for sharp-edged structures.
Q3: Does this follow UK building regulations?
A: This provides basic calculation. For full compliance, refer to BS EN 1991-1-4 (Eurocode 1).
Q4: Should I include safety factors?
A: This calculates nominal load. For design, multiply by appropriate partial safety factors (γf).
Q5: How to account for height effects?
A: Dynamic pressure increases with height. Use appropriate q values for your structure's height zone.