Basic Wind Speed from Velocity Pressure
The inverse of the wind velocity-pressure tile: the equivalent basic wind speed behind a bare velocity pressure, V = sqrt(q / 0.00256). A 25-psf velocity pressure corresponds to a ~98.8 mph basic wind speed. Enter the bare q (not a Cp-loaded design surface pressure). A design aid; ASCE 7 and the engineer of record govern.
Formula and source
V = sqrt(velocity_pressure_psf / 0.00256), the ASCE 7 base velocity pressure q = 0.00256 V^2 solved for the wind speed.
ASCE 7-22 (Minimum Design Loads for Buildings and Other Structures). Section 26.10 (the base 0.00256 V^2 velocity pressure), solved for V. Public formula; licensed text not reproduced.
Audience
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