6.18 Given: The floor beam in Figure 6.C with the following information: Load: Po 400 lb P = 1600 lb Load combination: D+L (ASD) 1.2D +1.6L. (LRFD) Span: L = 8 ft L = 4 ft Member size: Stress grade and species Sel. Str. SP Unbraced length: L=0 Moisture content: MC 5 19 percent Live load deflection limit Allow. ASL2/180 Allow. Asupports SL/360 4x 12 339 FIGURE 6.C Beam with load per problem 6.18. Find: a. Size category (Dimension lumber, B&S, or P&T) b. Reference design values: Fb, F, and E 6. Adjusted ASD values: FF, and E d. Actual stresses (ASD) and deflection (bfo and A e. Compare the actual stresses and adjusted design values, and determine if the member is adequate (ASD). Nominal LRFD values: Fb. Fy, and E 9. Adjusted LRED values: Fm Fmand E h. Adjusted LRFD moment and shear resistances: M, and V. i. Factored moment and shear (LRFD), and actual deflection: MV, and a j. Determine if the member is adequate (LRFD)