Question

Please solve question P2.24:

P2.23 A convenience store is to be built in New Orleans, Louisiana (latitude = 29.97°, longitude = -90.06°) in a location that could be classified as an exposure C. Calculate the design wind pressures for the MWFRS of the building for the wind direction shown in the accompanying figure. Provide a sketch of the wind pressure zones similar to what is presented in Example 2.8. (Ans: zone A = 40.9 psf, zone E = -49.1 psf) 17 ft On Wind direction Problems 2.23/2.24

Answer 1

Given Data: Site location = Lincoln, Nebraska Latitude = 40.8° Longitude : -96.67° Nature of occupancy = Convenience store Exposure category - B Building dimensions : 1 L=98ft B= 60 ft H=17ft. Basic wind speed , v= 111 mph • Risk Category. - II • Importance factor = 1.0 Height & exposure adjustment coefficient, d=1 Торо омадіс сол, К. = 1.0 Simplified Ps3o Ps so design wind pressure (Ps 3o) at A = 19.56 psf at E = -23.53 psf

Design wind pressures at A = AKąt I Psao - = = 1 x 1x 1 x 19.56 19.56 psf at E = d Kzz I PB30 - 1 X 1 X 1 X -23:53 - 2353 lift 98++ 98 + 60ft a = 0.1060= 6ft (or) 0.48 17 = 6.8 ft. :: a = 645 za=12 ft.