Thanks a lot Jay for quick reply and helpful comments!
To understand this procedure corretly, I simplified an assumption below:
Assume truss spans from front to rear walls, then
Perpendicular to Truss Force, F1 equals:
Wind pressure to side wall * Width of side wall * Tributed height...
For wood roof diaphragms with wood trusses supported on masonry walls and subject to lateral wind load,how to calculate the shear load F1(parallel to the supporting wall) and F2(normal to the supporting wall) for the truss-to-wall connector design?
P.S. In fact, this topic was posted before...