This adjusted value is found by multiplying the tabular value, F b ( Appendix Table A-3.5), by various adjustment factors. Wood beams are generally designed for bending stress and then checked for shear and deflection.Using allowable stress design, the required section modulus is found by dividing the maximum bendingmoment by the adjusted allowable bending stress, F b', as shown in Equation 1.24. Introduction to wood | Material properties | Sectional properties | Design approaches | Construction systems | Tension elements | Columns | Beams | Connections | Ch.
