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Calculate Allowable Bending Stress for Wood:
 
Calculation:
Designer/Checker:
   
Input:
 
 
 
(Note: All input Metric units are converted to English units for the equations below and then the output English units are converted back to Metric)
 
AWC 2012 ASD-LRFD Manual For Engineered Wood Construction M3.3, Bending Members Flexure:
The following is for calculating the allowable bending stress of a wood member.
 
Reference design value for bending (Fb - psi or kPa)
Load duration factor (Cd - for ASD only)
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 - for LRFD only)
     
   
Output: 
 
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Allowable bending stress, Fb' =
   
 
 
 



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