A W14 x 90 of A572 Grade 60 steel is used as a beam with lateral support at 10-foot intervals. Assume that Cb 1.0 and compute the nominal flexural strength. a. Check for compactness b. Determine nominal flexural strength

Problems 6 - 7: Design the following sections by finding As and A's. Mu is provided below the figure. Use fy = 60,000 psi, f'c = 4000 psi. Start the design by verifying that compression steel is needed to meet the required strength. Once you have calculated A, and A's, select bar size and # using the tables, then show that the actual resultant steel areas satisfy the design requirements listed below: 14" Use Mu =900k-ft capacity: Mn > Mu/ ductility: &t >= 0.005 (note: it is not required that &'s > 0.00207) minimum steel: As > As,min 3" 23" 3" stut. * 10" 8" 8" Use Mu=300k-ft 3" 14" 3"

Determine the available strength of the compression member shown in figure below.