Included in Table B. 1 in Appendix B are the properties of wide-flange (W) steel beam sections. For a W12 × 120 section profile, identify the moment of inertia (l), section modulus (S), and radius of gyration (r) about the x-x axis and the y-y axis.
(a) Compare each property about the x-x axis to the like property about the y-y axis by percentage difference.
(b) Which axis offers better stiffness against bending?
(c) Which axis offers better strength against bending stresses?
(d) Which axis offers better resistance against buckling?
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