(Solved): 1- A 12-story office building is 120ft tall with plan dimensions of 120\times 80ft. The structure ...

1- A 12-story office building is

tall with plan dimensions of

. The structure is of conventional curtain wall construction with all windows fixed in place. There are double vestibule-type doors on all four sides. Under winter design conditions, a wind of

blows normal to one of the long dimensions. Estimate the pressure differences for all walls for the first and twelfth floors. Consider only wind and stack effects. The indoor-outdoor temperature difference is

. 2- Estimate the infiltration rate for the leeward doors of Prob.1. The doors have 1/8 in. cracks, and the traffic rate is low except at 5:00 P.M., when the traffic rate is 350 people per hour per door for a short time. 3- Estimate the leakage rate for the twelfth floor of the building in Prob.1. Neglect the roof.