Stress Calculations for Wood Structural Panels

 

box beams, foam-core sandwich panels, stress-skin panels, etc

panelized roof systems

 

 

Adjustment Factors

C_G - grade and construction (1.0 to 1.6)

C_D - duration

K_F - conversion
λ - time effect
Φ - resistance

C_M - moisture

C_t - temperature

C_s - panel size  (if width < 24 in.)

 

 

Shear

shear through the thickness  (face and back plies move in same direction; see textbook figure 8.21a)

rolling shear  (face and back plies move in opposite direction; see textbook figure 8.21b)