20x
001032
2024-01-16

Combined Biaxial Bending and Axial Compression Design Ratio

Combined Biaxial Bending and Axial Compression Design Ratio
fcFc'2 + fbxFbx' · 1 - fcFcEx + fbyFby' · 1 - fcFcEy - fbxFbE2  1.0

1716732 + 3531,729 · 1 - 1713,965 + 1,0291,936 · 1 - 171728 - 3536,5772 = 0.98
fc Compression stress due to the dead and snow load
Fc' Adjusted compressive design value parallel to the grain
fbx Major-axis bending stress due to the wind load
Fbx' Adjusted major axis bending design value
FcEx Critical buckling design value for the compression member in the major axis
fby Minor-axis bending stress due to the dead and snow load
Fby' Adjusted minor axis bending design value
FcEy Critical buckling design value for the compression member in the minor axis
FbE Critical buckling design value for the bending member