For the frame and loading shown, determine the components of the forces acting on member CDE at C and D. Cy = S in. Cx = 30 25 lb B. in. Dy = 30° Dx = C. E. 6 in. 2 in. 4 in.

CE. CB= 200# Link CD is in (Assuming shown directions as correct) Tension Compression

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"