Plot the beam curves for a simply supported W8 x 31 section using a. LRFD approach b. SSRC approach c. ECCS approach Use M./M, as the ordinate and A = VM/M, as the abscissa. The material properties are: E = 29,000 ksi, Using C = 1.0 (single-curvature bending). G/E=0.385, Fy=36 ksi bending) and C=2.3 (double-curvature