1. Can't use Fig 6-2 Method 1 Simplified Procedure for Partially Enclosed buildings GCpi = +/-0.55. The GCpi used to create Fig 6-2 was +/-0.18 Enclosed Building.
2. Furthermore, ASCE 7-98 Fig 6-4 is ASCE 7-05 Fig 6-10(with a few updates). In ASCE 7-98 the use of sine/cosine was clearly...
I know my original post was a bit wordy, but the short of it is that Fig 6-2 is calculated using Fig 6-10. Try it yourself.
Given: Gable roofed building mean roof height 30 feet, I=1, Kz=0.7, Kzt=1, Kd=0.85, V=100mph, Roof Angle =20 deg. Enclosed Building GCpi= +/-0.18...
It appears to me, something is amiss in the ASCE 7-05. Figure 6-10 should state definitively whether the pressure shown is perpendicular to the surface (therefore horizontal & vertical components of the pressure should be calc'd using sine & cosines of the roof/surface angle) or it should state...
