A one-story steel storage building with a Gable Roof Main wind- force resisting system have the following configuration. Building width=6m, Building Length = 6m, Height to Apex = 7.5m, Eve Height 4.5m. And is an enclosed structure which have an Exposure Category C with a wind speed of 290 kph. Use a Gust factor of 0.85.
Considering the Load Combination = 1.2DL +1WL, Determine the most critical (consider sign/direction) Leeward Roof Pressure (considering all cases) at the surface of the walls if the wind direction goes from West to East (the Wind direction is perpendicular to the ridge of the structure).
DL=1.0kPa
Choices
-1.32
0.23
-0.55
+2.3
+1.32
-0.23
-2.3
-1.0
+2.098
+0.55