Calculate Allowable Bending Stress for Wood

AWC 2012 ASD-LRFD Manual For Engineered Wood Construction M3.3, Bending Members Flexure

Reference design value for bending (Fb)

Load duration factor (Cd)

Wet service factor (Cm)

Temperature factor (Ct)

Incising factor (Ci)

Beam stability factor (CL)

Size factor (Cf)

Flat use factor (Cfu)

Repetitive member factor (Cr)

Time effect factor (TEF)

Result

ASD allowable bending stress, Fb'

psi

LRFD allowable bending stress, Fb'

psi

Fb - Reference design value for bending
Cd - Load duration factor
Cm - Wet service factor
Ct - Temperature factor
Ci - Incising factor
CL - Beam stability factor
Cf - Size factor
Cfu - Flat use factor
Cr - Repetitive member factor
TEF - Time effect factor
Fb'(ASD) - allowable bending stress
Fb'(LRFD) - allowable bending stress