Jd. Ginger et Cw. Letchford, PRESSURE FACTORS FOR EDGE REGIONS ON LOW-RISE BUILDING ROOFS, Journal of wind engineering and industrial aerodynamics, 54, 1995, pp. 337-344
Point and area-averaged pressures are presented for enclosed low rise
(height (h)/breadth (b) = 1/3) building roof, based on 1:100 scale win
d tunnel measurements obtained in a simulated suburban atmospheric sur
face layer. Large magnitude mean and peak suction pressures were measu
red close to the leading edges under the separating shear layer. Signi
ficantly larger magnitude mean and peak pressures were measured on 0.2
h (wide) by 1.0h (long) rectangular edge strips compared to the pressu
res on 1.5h by 1.0h roof sections. Pressure factors of the order of 3.
0 for suction pressures were obtained for these regions which are larg
er than code values. However, measured peak area-averaged suction pres
sures were significantly smaller than code values.