The two-story wood-frame building in Fig. 12.D has plywood shear panels along line 1. The lateral wind forces are shown in the sketch. Diaphragm span length L 30 ft. Resisting dead loads to line 1 are...

The two-story wood-frame building in Fig. 12.D has plywood shear panels along line 1. The lateral wind forces are shown in the sketch. Diaphragm span length L 30 ft. Resisting dead loads to line 1 are roof D = 100 lb/ft, floor D = 120 lb/ft, and wall D = 10 psf. Tie-down anchorage is to be with 12-gage ASTM A653 Grade 33 steel straps and 16d common nails. Studs are 2
 6 of Spruce-Pine-Fir (South). Assume that the metal strap is adequate.
 = 1.0.

Find: The number of nails required for the anchorage connections at A and B using LRFD procedures.

Fig. 12.D